Schizophrenia & Other Psychotic Disorders

Dr. A has been treating Ms. W, a graduate student, for depression. Ms. W made subtle comments expressing her interest in pursuing a romantic relationship with her psychiatrist. Dr. A gently redirected her, and she seemed to respond appropriately. However, over the past 2 weeks, Dr. A has seen Ms. W at a local park and at the grocery store. Today, Dr. A is startled to see Ms. W at her weekly yoga class. Dr. A plans to ask her supervisor for advice.

Dr. M is a child psychiatrist who spoke at his local school board meeting in support of masking requirements for students during COVID-19. During the discussion, Dr. M shared that, as a psychiatrist, he does not believe it is especially distressing for students to wear masks, and that doing so is a necessary public health measure. On leaving, other parents shouted, “We know who you are and where you live!” The next day, his integrated clinic started receiving threatening and harassing messages, including threats to kill him or his staff if they take part in vaccinating children against COVID-19.

Because of their work, mental health professionals—like other health care professionals—face an elevated risk of being harassed or stalked. Stalking often includes online harassment and may escalate to serious physical violence. Stalking is criminal behavior by a patient and should not be constructed as a “failure to manage transference.” This article explores basic strategies to reduce the risk of harassment and stalking, describes how to recognize early behaviors, and outlines basic steps health care professionals and their employers can take to respond to stalking and harassing behaviors.

Although this article is intended for psychiatrists, it is important to note that all health professionals have significant risk for experiencing stalking or harassment. This is due in part, but not exclusively, to our clinical work. Estimates of how many health professionals experience stalking vary substantially depending upon the study, and differences in methodologies limit easy comparison or extrapolation. More thorough reviews have reported ranges from 2% to 70% among physicians; psychiatrists and other mental health professionals appear to be at greater risk than those in other specialties and the general population.^1-3 Physicians who are active on social media may also be at elevated risk.⁴ Unexpected communications from patients and their family members—especially those with threatening, harassing, or sexualized tones, or involving contact outside of a work setting—can be distressing. These behaviors represent potential harbingers of more dangerous behavior, including physical assault, sexual assault, or homicide. Despite their elevated risk, many psychiatrists are unaware of how to prevent or respond to stalking or harassment.

Recognizing harassment and stalking

Repeated and unwanted contact or communication, regardless of intent, may constitute stalking. Legal definitions vary by jurisdiction and may not align with subjective experiences or understanding of what constitutes stalking.⁵ At its essence, stalking is repeated harassing behaviors likely to provoke fear in the targeted person. FOUR is a helpful mnemonic when conceptualizing the attributes of stalking: Fixated, Obsessive, Unwanted, and Repetitive.⁶Table 1 lists examples of common stalking behaviors. Stalking and harassing behavior may be from a known source (eg, a patient, coworker, or paramour), a masked source (ie, someone known to the target but who conceals or obscures their identity), or from otherwise unknown persons. Behaviors that persist after the person engaging in the behaviors has clearly been informed that they are unwanted or inappropriate are especially concerning. Stalking may escalate to include physical or sexual assault and, in some cases, homicide.

Stalking duration can vary substantially, as can the factors that lead to the cessation of the behavior. Indicators of increased risk for physical violence include unwanted physical presence/following of the target (“approach behaviors”), having a prior violent intimate relationship, property destruction, explicit threats, and having a prior intimate relationship with the target.⁷

Stalking contact or communication may be unwanted because of the content (eg, sexualized or threatening tone), location (eg, at a professional’s home), or means (eg, through social media). Stalking behaviors are not appropriate in any relationship, including a clinical relationship. They should not be treated as a “failure to manage transference” or in other victim-blaming ways.

There are multiple typologies for stalking behavior. Common motivations for stalking health professionals include resentment or grievance, misjudgment of social boundaries, and delusional fixation, including erotomania.⁸ Associated psychopathologies vary significantly and, while some may be more amenable to psychiatric treatment than others, psychiatrists should not feel compelled to treat patients who repeatedly violate boundaries, regardless of intent or comorbidity.

Patients are not the exclusive perpetrators of stalking; a recent study found that 4% of physicians surveyed reported current or recent stalking by a current or former intimate partner.⁹ When a person who is a victim of intimate partner violence is also stalked as part of the abuse, homicide risk increases.¹⁰ Workplace homicides of health care professionals are most likely to be committed by a current or former partner or other personal acquaintance, not by a patient.¹¹ Workplace harassment and stalking of health care professionals is especially concerning because this behavior can escalate and endanger coworkers or clients.

Continue to: Risk awareness: Recognize your exposure...

Clinicians cannot easily or universally prevent stalking. This is a behavior initiated outside of the clinician’s control and often outside of the clinician’s awareness. However, to some degree, the risk of being stalked can be mitigated. Some basic measures may help reduce unnecessary exposure. In addition to being in a patient-facing role, psychiatrists with gatekeeper functionality (ie, making admission/discharge decisions), visibility in news or social media, or with family or social relations in news or social media may have an increased risk of being stalked.

About 80% of stalking involves some form of technology—often telephone calls but also online or other “cyber” elements.¹² One recent survey found the rate of online harassment, including threats of physical and sexual violence, was >20% among physicians who were active on social media.⁴ Health professionals may be at greater risk of having patients find their personal information simply because patients routinely search online for information about new clinicians. Personal information about a clinician may be readily visible among professional information in search results, or a curious patient may simply scroll further down in the results. For a potential stalker, clicking on a search result linking to a personal social media page may be far easier than finding a home address and going in person—but the action may be just as distressing or risky for the clinician.¹³ Additionally, items visible in a clinician’s office—or visible in the background of those providing telehealth services from their home—may inadvertently reveal personal information about the clinician, their home, or their family.

Psychiatrists are often in a special position in relation to patients and times of crises. They may be involved in involuntary commitment—or declining an admission when a patient or family wishes it. They may be present at the time of the revelation of a serious diagnosis, abuse, injury, or death. They may be a mandated reporter of child or elder abuse.² Additionally, physicians may be engaged in discourse on politically charged public health topics.¹⁴ These factors may increase their risk of being stalked.

Conducting an online visibility self-assessment can be a useful way to learn what information others can find. Table 2 outlines the steps for completing this exercise. Searching multiple iterations of your current and former names (with and without degrees, titles, and cities) will yield differing results in various search engines. After establishing a baseline of what information is available online, it can be helpful to periodically repeat this exercise, and to set up automated alerts for your name, number(s), email(s), and address(es).

Basic mitigation strategies

In the modern era, being invisible online is impractical and likely impossible—especially for a health care professional. Instead, it may be prudent to limit your public visibility to professional portals (eg, LinkedIn or Doximity) and maximize privacy settings on other platforms. Another basic strategy is to avoid providing personal contact information (your home address, phone number, or personal email) for professional purposes, such as licensing and credentialing, conference submissions, or journal publications. Be aware that driving a visually distinct vehicle—one with vanity plates or distinct bumper stickers, or an exotic sportscar—can make it easier to be recognized and located. A personally recorded voicemail greeting (vs one recorded by, for example, an office manager) may be inappropriately reinforcing for some stalkers.

Workplaces should have an established safety policy that addresses stalking and harassment of employees. Similarly, patients and others should receive clear education on how to contact different staff, including physicians, with consideration of how and when to use electronic health information portals, office numbers, and emails. Workplaces should not disclose staff schedules. For example, a receptionist should say “I’ll have Dr. Diaz return your call when she can” instead of “Dr. Diaz is not in until tomorrow.” Avoid unnecessary location/name signals (eg, a parking spot labeled “Dr. Diaz”). Consider creating alert words or phrases for staff to use to signal they are concerned about their immediate safety—and provide education and training, including drills, to test emergency responses when the words/phrases are used. Leaders and managers should nurture a workplace culture where people are comfortable seeking support if they feel they may be the target of harassment or stalking. Many larger health care organizations have threat management programs, which can play a critical role in preventing, investigating, and responding to stalking of employees. Increasingly, threat management teams are being identified as a best practice in health care settings.¹⁵Table 3 summarizes measures to mitigate risk.

What to do when harassment or stalking occurs

Consulting with subject matter experts is essential. Approach behaviors, stalking patterns, and immediate circumstances vary highly, and so too must responses. A socially inept approach outside of the work setting by a patient may be effectively responded to with a firm explanation of why the behavior was inappropriate and a reiteration of limits. More persistent or serious threats may require taking actions for immediate safety, calling law enforcement or security (who may have the expertise to assist appropriately), or even run/hide/fight measures. Others to notify early on include human resources, supervisors, front desk staff, and coworkers. Although no single measure is always indicated and no single measure will always be effective, consultation with a specialist is always advisable.

Attempting to assess your own risk may be subject to bias and error, even for an experienced forensic psychiatrist. Risk assessment in stalking and harassment cases is complex, nuanced, and beyond the scope of this article; engagement with specialized threat programs or subject matter experts is advisable.^15,16 If your medical center or area has police or security officers, engage them early. Risk management, insurers, and legal can also be helpful to consult. Attorneys specializing in harassment, stalking, and domestic violence may be helpful in extreme situations.¹⁷Table 4^17,18 highlights steps to take.

Continue to: Clinical documentation and termination of care...

Clinical documentation and termination of care

Repeated and unwanted contact behaviors by a patient may be considered grounds for termination of care by the targeted clinician. Termination may occur through a direct conversation, followed by a mailed letter explaining that the patient’s inappropriate behaviors are the basis for termination. The letter should outline steps for establishing care with another psychiatrist and signing a release to facilitate transfer of records to the next psychiatrist. Ensure that the patient has access to a reasonable supply of medications or refills according to jurisdictional standards for transfer or termination of care.¹⁹ While these are common legal standards for termination of care in the United States, clinicians would be well served by appropriate consultation to verify the most appropriate standards for their location.

Documentation of a patient’s behavior should be factual and clear. Under the 21st Century Cures Act, patients often have access to their own electronic records.²⁰ Therefore, clinicians should avoid documenting personal security measures or other information that is not clinically relevant. Communications with legal or risk management should not be documented unless otherwise advised, because such communications may be privileged and may not be clinically relevant.

In some circumstances, continuing to treat a patient who has stalked a member of the current treatment team may be appropriate or necessary. For example, a patient may respond appropriately to redirection after an initial approach behavior and continue to make clinical progress, or may be in a forensic specialty setting with appropriate operational support to continue with treatment.

Ethical dilemmas may arise in underserved areas where there are limited options for psychiatric care and in communicating the reasons for termination to a new clinician. Consultation may help to address these issues. However, as noted before, clinicians should be permitted to discontinue and transfer treatment and should not be compelled to continue to treat a patient who has threatened or harassed them.

Organizational and employer considerations

Victims of stalking have reported that they appreciated explicit support from their supervisor, regular meetings, and measures to reduce potential stalking or violence in the workplace; unsurprisingly, victim blaming and leaving the employee to address the situation on their own were labeled experienced as negative.² Employers may consider implementing physical security, access controls and panic alarms, and enhancing coworkers’ situational awareness.²¹ Explicit policies about and attention to reducing workplace violence, including stalking, are always beneficial—and in some settings such policies may be a regulatory requirement.²² Large health care organizations may benefit from developing specialized threat management programs to assist with the evaluation and mitigation of stalking and other workplace violence risks.^15,23

Self-care considerations

The impact of stalking can include psychological distress, disruption of work and personal relationships, and false allegations of impropriety. Stalking can make targets feel isolated, violated, and fearful, which makes it challenging to reach out to others for support and safety. It takes time to regain a sense of safety and to find a “new normal,” particularly while experiencing and responding to stalking behavior. Notifying close personal contacts such as family and coworkers about what is occurring (without sharing protected health information) can be helpful for recovery and important for the clinician’s safety. Reaching out for organizational and legal supports is also prudent. It is also important to allow time for, and patience with, a targeted individual’s normal responses, such as decreased work performance, sleep/appetite changes, and hypervigilance, without pathologizing these common stress reactions. Further review of appropriate resources by impacted clinicians is advisable.^24-26

Dr. A has been treating Ms. W, a graduate student, for depression. Ms. W made subtle comments expressing her interest in pursuing a romantic relationship with her psychiatrist. Dr. A gently redirected her, and she seemed to respond appropriately. However, over the past 2 weeks, Dr. A has seen Ms. W at a local park and at the grocery store. Today, Dr. A is startled to see Ms. W at her weekly yoga class. Dr. A plans to ask her supervisor for advice.

Dr. M is a child psychiatrist who spoke at his local school board meeting in support of masking requirements for students during COVID-19. During the discussion, Dr. M shared that, as a psychiatrist, he does not believe it is especially distressing for students to wear masks, and that doing so is a necessary public health measure. On leaving, other parents shouted, “We know who you are and where you live!” The next day, his integrated clinic started receiving threatening and harassing messages, including threats to kill him or his staff if they take part in vaccinating children against COVID-19.

Because of their work, mental health professionals—like other health care professionals—face an elevated risk of being harassed or stalked. Stalking often includes online harassment and may escalate to serious physical violence. Stalking is criminal behavior by a patient and should not be constructed as a “failure to manage transference.” This article explores basic strategies to reduce the risk of harassment and stalking, describes how to recognize early behaviors, and outlines basic steps health care professionals and their employers can take to respond to stalking and harassing behaviors.

Although this article is intended for psychiatrists, it is important to note that all health professionals have significant risk for experiencing stalking or harassment. This is due in part, but not exclusively, to our clinical work. Estimates of how many health professionals experience stalking vary substantially depending upon the study, and differences in methodologies limit easy comparison or extrapolation. More thorough reviews have reported ranges from 2% to 70% among physicians; psychiatrists and other mental health professionals appear to be at greater risk than those in other specialties and the general population.^1-3 Physicians who are active on social media may also be at elevated risk.⁴ Unexpected communications from patients and their family members—especially those with threatening, harassing, or sexualized tones, or involving contact outside of a work setting—can be distressing. These behaviors represent potential harbingers of more dangerous behavior, including physical assault, sexual assault, or homicide. Despite their elevated risk, many psychiatrists are unaware of how to prevent or respond to stalking or harassment.

Recognizing harassment and stalking

Repeated and unwanted contact or communication, regardless of intent, may constitute stalking. Legal definitions vary by jurisdiction and may not align with subjective experiences or understanding of what constitutes stalking.⁵ At its essence, stalking is repeated harassing behaviors likely to provoke fear in the targeted person. FOUR is a helpful mnemonic when conceptualizing the attributes of stalking: Fixated, Obsessive, Unwanted, and Repetitive.⁶Table 1 lists examples of common stalking behaviors. Stalking and harassing behavior may be from a known source (eg, a patient, coworker, or paramour), a masked source (ie, someone known to the target but who conceals or obscures their identity), or from otherwise unknown persons. Behaviors that persist after the person engaging in the behaviors has clearly been informed that they are unwanted or inappropriate are especially concerning. Stalking may escalate to include physical or sexual assault and, in some cases, homicide.

Stalking duration can vary substantially, as can the factors that lead to the cessation of the behavior. Indicators of increased risk for physical violence include unwanted physical presence/following of the target (“approach behaviors”), having a prior violent intimate relationship, property destruction, explicit threats, and having a prior intimate relationship with the target.⁷

Stalking contact or communication may be unwanted because of the content (eg, sexualized or threatening tone), location (eg, at a professional’s home), or means (eg, through social media). Stalking behaviors are not appropriate in any relationship, including a clinical relationship. They should not be treated as a “failure to manage transference” or in other victim-blaming ways.

There are multiple typologies for stalking behavior. Common motivations for stalking health professionals include resentment or grievance, misjudgment of social boundaries, and delusional fixation, including erotomania.⁸ Associated psychopathologies vary significantly and, while some may be more amenable to psychiatric treatment than others, psychiatrists should not feel compelled to treat patients who repeatedly violate boundaries, regardless of intent or comorbidity.

Patients are not the exclusive perpetrators of stalking; a recent study found that 4% of physicians surveyed reported current or recent stalking by a current or former intimate partner.⁹ When a person who is a victim of intimate partner violence is also stalked as part of the abuse, homicide risk increases.¹⁰ Workplace homicides of health care professionals are most likely to be committed by a current or former partner or other personal acquaintance, not by a patient.¹¹ Workplace harassment and stalking of health care professionals is especially concerning because this behavior can escalate and endanger coworkers or clients.

Continue to: Risk awareness: Recognize your exposure...

Clinicians cannot easily or universally prevent stalking. This is a behavior initiated outside of the clinician’s control and often outside of the clinician’s awareness. However, to some degree, the risk of being stalked can be mitigated. Some basic measures may help reduce unnecessary exposure. In addition to being in a patient-facing role, psychiatrists with gatekeeper functionality (ie, making admission/discharge decisions), visibility in news or social media, or with family or social relations in news or social media may have an increased risk of being stalked.

About 80% of stalking involves some form of technology—often telephone calls but also online or other “cyber” elements.¹² One recent survey found the rate of online harassment, including threats of physical and sexual violence, was >20% among physicians who were active on social media.⁴ Health professionals may be at greater risk of having patients find their personal information simply because patients routinely search online for information about new clinicians. Personal information about a clinician may be readily visible among professional information in search results, or a curious patient may simply scroll further down in the results. For a potential stalker, clicking on a search result linking to a personal social media page may be far easier than finding a home address and going in person—but the action may be just as distressing or risky for the clinician.¹³ Additionally, items visible in a clinician’s office—or visible in the background of those providing telehealth services from their home—may inadvertently reveal personal information about the clinician, their home, or their family.

Psychiatrists are often in a special position in relation to patients and times of crises. They may be involved in involuntary commitment—or declining an admission when a patient or family wishes it. They may be present at the time of the revelation of a serious diagnosis, abuse, injury, or death. They may be a mandated reporter of child or elder abuse.² Additionally, physicians may be engaged in discourse on politically charged public health topics.¹⁴ These factors may increase their risk of being stalked.

Conducting an online visibility self-assessment can be a useful way to learn what information others can find. Table 2 outlines the steps for completing this exercise. Searching multiple iterations of your current and former names (with and without degrees, titles, and cities) will yield differing results in various search engines. After establishing a baseline of what information is available online, it can be helpful to periodically repeat this exercise, and to set up automated alerts for your name, number(s), email(s), and address(es).

Basic mitigation strategies

In the modern era, being invisible online is impractical and likely impossible—especially for a health care professional. Instead, it may be prudent to limit your public visibility to professional portals (eg, LinkedIn or Doximity) and maximize privacy settings on other platforms. Another basic strategy is to avoid providing personal contact information (your home address, phone number, or personal email) for professional purposes, such as licensing and credentialing, conference submissions, or journal publications. Be aware that driving a visually distinct vehicle—one with vanity plates or distinct bumper stickers, or an exotic sportscar—can make it easier to be recognized and located. A personally recorded voicemail greeting (vs one recorded by, for example, an office manager) may be inappropriately reinforcing for some stalkers.

Workplaces should have an established safety policy that addresses stalking and harassment of employees. Similarly, patients and others should receive clear education on how to contact different staff, including physicians, with consideration of how and when to use electronic health information portals, office numbers, and emails. Workplaces should not disclose staff schedules. For example, a receptionist should say “I’ll have Dr. Diaz return your call when she can” instead of “Dr. Diaz is not in until tomorrow.” Avoid unnecessary location/name signals (eg, a parking spot labeled “Dr. Diaz”). Consider creating alert words or phrases for staff to use to signal they are concerned about their immediate safety—and provide education and training, including drills, to test emergency responses when the words/phrases are used. Leaders and managers should nurture a workplace culture where people are comfortable seeking support if they feel they may be the target of harassment or stalking. Many larger health care organizations have threat management programs, which can play a critical role in preventing, investigating, and responding to stalking of employees. Increasingly, threat management teams are being identified as a best practice in health care settings.¹⁵Table 3 summarizes measures to mitigate risk.

What to do when harassment or stalking occurs

Consulting with subject matter experts is essential. Approach behaviors, stalking patterns, and immediate circumstances vary highly, and so too must responses. A socially inept approach outside of the work setting by a patient may be effectively responded to with a firm explanation of why the behavior was inappropriate and a reiteration of limits. More persistent or serious threats may require taking actions for immediate safety, calling law enforcement or security (who may have the expertise to assist appropriately), or even run/hide/fight measures. Others to notify early on include human resources, supervisors, front desk staff, and coworkers. Although no single measure is always indicated and no single measure will always be effective, consultation with a specialist is always advisable.

Attempting to assess your own risk may be subject to bias and error, even for an experienced forensic psychiatrist. Risk assessment in stalking and harassment cases is complex, nuanced, and beyond the scope of this article; engagement with specialized threat programs or subject matter experts is advisable.^15,16 If your medical center or area has police or security officers, engage them early. Risk management, insurers, and legal can also be helpful to consult. Attorneys specializing in harassment, stalking, and domestic violence may be helpful in extreme situations.¹⁷Table 4^17,18 highlights steps to take.

Continue to: Clinical documentation and termination of care...

Clinical documentation and termination of care

Repeated and unwanted contact behaviors by a patient may be considered grounds for termination of care by the targeted clinician. Termination may occur through a direct conversation, followed by a mailed letter explaining that the patient’s inappropriate behaviors are the basis for termination. The letter should outline steps for establishing care with another psychiatrist and signing a release to facilitate transfer of records to the next psychiatrist. Ensure that the patient has access to a reasonable supply of medications or refills according to jurisdictional standards for transfer or termination of care.¹⁹ While these are common legal standards for termination of care in the United States, clinicians would be well served by appropriate consultation to verify the most appropriate standards for their location.

Documentation of a patient’s behavior should be factual and clear. Under the 21st Century Cures Act, patients often have access to their own electronic records.²⁰ Therefore, clinicians should avoid documenting personal security measures or other information that is not clinically relevant. Communications with legal or risk management should not be documented unless otherwise advised, because such communications may be privileged and may not be clinically relevant.

In some circumstances, continuing to treat a patient who has stalked a member of the current treatment team may be appropriate or necessary. For example, a patient may respond appropriately to redirection after an initial approach behavior and continue to make clinical progress, or may be in a forensic specialty setting with appropriate operational support to continue with treatment.

Ethical dilemmas may arise in underserved areas where there are limited options for psychiatric care and in communicating the reasons for termination to a new clinician. Consultation may help to address these issues. However, as noted before, clinicians should be permitted to discontinue and transfer treatment and should not be compelled to continue to treat a patient who has threatened or harassed them.

Organizational and employer considerations

Victims of stalking have reported that they appreciated explicit support from their supervisor, regular meetings, and measures to reduce potential stalking or violence in the workplace; unsurprisingly, victim blaming and leaving the employee to address the situation on their own were labeled experienced as negative.² Employers may consider implementing physical security, access controls and panic alarms, and enhancing coworkers’ situational awareness.²¹ Explicit policies about and attention to reducing workplace violence, including stalking, are always beneficial—and in some settings such policies may be a regulatory requirement.²² Large health care organizations may benefit from developing specialized threat management programs to assist with the evaluation and mitigation of stalking and other workplace violence risks.^15,23

Self-care considerations

The impact of stalking can include psychological distress, disruption of work and personal relationships, and false allegations of impropriety. Stalking can make targets feel isolated, violated, and fearful, which makes it challenging to reach out to others for support and safety. It takes time to regain a sense of safety and to find a “new normal,” particularly while experiencing and responding to stalking behavior. Notifying close personal contacts such as family and coworkers about what is occurring (without sharing protected health information) can be helpful for recovery and important for the clinician’s safety. Reaching out for organizational and legal supports is also prudent. It is also important to allow time for, and patience with, a targeted individual’s normal responses, such as decreased work performance, sleep/appetite changes, and hypervigilance, without pathologizing these common stress reactions. Further review of appropriate resources by impacted clinicians is advisable.^24-26

Dr. A has been treating Ms. W, a graduate student, for depression. Ms. W made subtle comments expressing her interest in pursuing a romantic relationship with her psychiatrist. Dr. A gently redirected her, and she seemed to respond appropriately. However, over the past 2 weeks, Dr. A has seen Ms. W at a local park and at the grocery store. Today, Dr. A is startled to see Ms. W at her weekly yoga class. Dr. A plans to ask her supervisor for advice.

Dr. M is a child psychiatrist who spoke at his local school board meeting in support of masking requirements for students during COVID-19. During the discussion, Dr. M shared that, as a psychiatrist, he does not believe it is especially distressing for students to wear masks, and that doing so is a necessary public health measure. On leaving, other parents shouted, “We know who you are and where you live!” The next day, his integrated clinic started receiving threatening and harassing messages, including threats to kill him or his staff if they take part in vaccinating children against COVID-19.

Because of their work, mental health professionals—like other health care professionals—face an elevated risk of being harassed or stalked. Stalking often includes online harassment and may escalate to serious physical violence. Stalking is criminal behavior by a patient and should not be constructed as a “failure to manage transference.” This article explores basic strategies to reduce the risk of harassment and stalking, describes how to recognize early behaviors, and outlines basic steps health care professionals and their employers can take to respond to stalking and harassing behaviors.

Although this article is intended for psychiatrists, it is important to note that all health professionals have significant risk for experiencing stalking or harassment. This is due in part, but not exclusively, to our clinical work. Estimates of how many health professionals experience stalking vary substantially depending upon the study, and differences in methodologies limit easy comparison or extrapolation. More thorough reviews have reported ranges from 2% to 70% among physicians; psychiatrists and other mental health professionals appear to be at greater risk than those in other specialties and the general population.^1-3 Physicians who are active on social media may also be at elevated risk.⁴ Unexpected communications from patients and their family members—especially those with threatening, harassing, or sexualized tones, or involving contact outside of a work setting—can be distressing. These behaviors represent potential harbingers of more dangerous behavior, including physical assault, sexual assault, or homicide. Despite their elevated risk, many psychiatrists are unaware of how to prevent or respond to stalking or harassment.

Recognizing harassment and stalking

Repeated and unwanted contact or communication, regardless of intent, may constitute stalking. Legal definitions vary by jurisdiction and may not align with subjective experiences or understanding of what constitutes stalking.⁵ At its essence, stalking is repeated harassing behaviors likely to provoke fear in the targeted person. FOUR is a helpful mnemonic when conceptualizing the attributes of stalking: Fixated, Obsessive, Unwanted, and Repetitive.⁶Table 1 lists examples of common stalking behaviors. Stalking and harassing behavior may be from a known source (eg, a patient, coworker, or paramour), a masked source (ie, someone known to the target but who conceals or obscures their identity), or from otherwise unknown persons. Behaviors that persist after the person engaging in the behaviors has clearly been informed that they are unwanted or inappropriate are especially concerning. Stalking may escalate to include physical or sexual assault and, in some cases, homicide.

Stalking duration can vary substantially, as can the factors that lead to the cessation of the behavior. Indicators of increased risk for physical violence include unwanted physical presence/following of the target (“approach behaviors”), having a prior violent intimate relationship, property destruction, explicit threats, and having a prior intimate relationship with the target.⁷

Stalking contact or communication may be unwanted because of the content (eg, sexualized or threatening tone), location (eg, at a professional’s home), or means (eg, through social media). Stalking behaviors are not appropriate in any relationship, including a clinical relationship. They should not be treated as a “failure to manage transference” or in other victim-blaming ways.

There are multiple typologies for stalking behavior. Common motivations for stalking health professionals include resentment or grievance, misjudgment of social boundaries, and delusional fixation, including erotomania.⁸ Associated psychopathologies vary significantly and, while some may be more amenable to psychiatric treatment than others, psychiatrists should not feel compelled to treat patients who repeatedly violate boundaries, regardless of intent or comorbidity.

Patients are not the exclusive perpetrators of stalking; a recent study found that 4% of physicians surveyed reported current or recent stalking by a current or former intimate partner.⁹ When a person who is a victim of intimate partner violence is also stalked as part of the abuse, homicide risk increases.¹⁰ Workplace homicides of health care professionals are most likely to be committed by a current or former partner or other personal acquaintance, not by a patient.¹¹ Workplace harassment and stalking of health care professionals is especially concerning because this behavior can escalate and endanger coworkers or clients.

Continue to: Risk awareness: Recognize your exposure...

Clinicians cannot easily or universally prevent stalking. This is a behavior initiated outside of the clinician’s control and often outside of the clinician’s awareness. However, to some degree, the risk of being stalked can be mitigated. Some basic measures may help reduce unnecessary exposure. In addition to being in a patient-facing role, psychiatrists with gatekeeper functionality (ie, making admission/discharge decisions), visibility in news or social media, or with family or social relations in news or social media may have an increased risk of being stalked.

About 80% of stalking involves some form of technology—often telephone calls but also online or other “cyber” elements.¹² One recent survey found the rate of online harassment, including threats of physical and sexual violence, was >20% among physicians who were active on social media.⁴ Health professionals may be at greater risk of having patients find their personal information simply because patients routinely search online for information about new clinicians. Personal information about a clinician may be readily visible among professional information in search results, or a curious patient may simply scroll further down in the results. For a potential stalker, clicking on a search result linking to a personal social media page may be far easier than finding a home address and going in person—but the action may be just as distressing or risky for the clinician.¹³ Additionally, items visible in a clinician’s office—or visible in the background of those providing telehealth services from their home—may inadvertently reveal personal information about the clinician, their home, or their family.

Psychiatrists are often in a special position in relation to patients and times of crises. They may be involved in involuntary commitment—or declining an admission when a patient or family wishes it. They may be present at the time of the revelation of a serious diagnosis, abuse, injury, or death. They may be a mandated reporter of child or elder abuse.² Additionally, physicians may be engaged in discourse on politically charged public health topics.¹⁴ These factors may increase their risk of being stalked.

Conducting an online visibility self-assessment can be a useful way to learn what information others can find. Table 2 outlines the steps for completing this exercise. Searching multiple iterations of your current and former names (with and without degrees, titles, and cities) will yield differing results in various search engines. After establishing a baseline of what information is available online, it can be helpful to periodically repeat this exercise, and to set up automated alerts for your name, number(s), email(s), and address(es).

Basic mitigation strategies

In the modern era, being invisible online is impractical and likely impossible—especially for a health care professional. Instead, it may be prudent to limit your public visibility to professional portals (eg, LinkedIn or Doximity) and maximize privacy settings on other platforms. Another basic strategy is to avoid providing personal contact information (your home address, phone number, or personal email) for professional purposes, such as licensing and credentialing, conference submissions, or journal publications. Be aware that driving a visually distinct vehicle—one with vanity plates or distinct bumper stickers, or an exotic sportscar—can make it easier to be recognized and located. A personally recorded voicemail greeting (vs one recorded by, for example, an office manager) may be inappropriately reinforcing for some stalkers.

Workplaces should have an established safety policy that addresses stalking and harassment of employees. Similarly, patients and others should receive clear education on how to contact different staff, including physicians, with consideration of how and when to use electronic health information portals, office numbers, and emails. Workplaces should not disclose staff schedules. For example, a receptionist should say “I’ll have Dr. Diaz return your call when she can” instead of “Dr. Diaz is not in until tomorrow.” Avoid unnecessary location/name signals (eg, a parking spot labeled “Dr. Diaz”). Consider creating alert words or phrases for staff to use to signal they are concerned about their immediate safety—and provide education and training, including drills, to test emergency responses when the words/phrases are used. Leaders and managers should nurture a workplace culture where people are comfortable seeking support if they feel they may be the target of harassment or stalking. Many larger health care organizations have threat management programs, which can play a critical role in preventing, investigating, and responding to stalking of employees. Increasingly, threat management teams are being identified as a best practice in health care settings.¹⁵Table 3 summarizes measures to mitigate risk.

What to do when harassment or stalking occurs

Consulting with subject matter experts is essential. Approach behaviors, stalking patterns, and immediate circumstances vary highly, and so too must responses. A socially inept approach outside of the work setting by a patient may be effectively responded to with a firm explanation of why the behavior was inappropriate and a reiteration of limits. More persistent or serious threats may require taking actions for immediate safety, calling law enforcement or security (who may have the expertise to assist appropriately), or even run/hide/fight measures. Others to notify early on include human resources, supervisors, front desk staff, and coworkers. Although no single measure is always indicated and no single measure will always be effective, consultation with a specialist is always advisable.

Attempting to assess your own risk may be subject to bias and error, even for an experienced forensic psychiatrist. Risk assessment in stalking and harassment cases is complex, nuanced, and beyond the scope of this article; engagement with specialized threat programs or subject matter experts is advisable.^15,16 If your medical center or area has police or security officers, engage them early. Risk management, insurers, and legal can also be helpful to consult. Attorneys specializing in harassment, stalking, and domestic violence may be helpful in extreme situations.¹⁷Table 4^17,18 highlights steps to take.

Continue to: Clinical documentation and termination of care...

Clinical documentation and termination of care

Repeated and unwanted contact behaviors by a patient may be considered grounds for termination of care by the targeted clinician. Termination may occur through a direct conversation, followed by a mailed letter explaining that the patient’s inappropriate behaviors are the basis for termination. The letter should outline steps for establishing care with another psychiatrist and signing a release to facilitate transfer of records to the next psychiatrist. Ensure that the patient has access to a reasonable supply of medications or refills according to jurisdictional standards for transfer or termination of care.¹⁹ While these are common legal standards for termination of care in the United States, clinicians would be well served by appropriate consultation to verify the most appropriate standards for their location.

Documentation of a patient’s behavior should be factual and clear. Under the 21st Century Cures Act, patients often have access to their own electronic records.²⁰ Therefore, clinicians should avoid documenting personal security measures or other information that is not clinically relevant. Communications with legal or risk management should not be documented unless otherwise advised, because such communications may be privileged and may not be clinically relevant.

In some circumstances, continuing to treat a patient who has stalked a member of the current treatment team may be appropriate or necessary. For example, a patient may respond appropriately to redirection after an initial approach behavior and continue to make clinical progress, or may be in a forensic specialty setting with appropriate operational support to continue with treatment.

Ethical dilemmas may arise in underserved areas where there are limited options for psychiatric care and in communicating the reasons for termination to a new clinician. Consultation may help to address these issues. However, as noted before, clinicians should be permitted to discontinue and transfer treatment and should not be compelled to continue to treat a patient who has threatened or harassed them.

Organizational and employer considerations

Victims of stalking have reported that they appreciated explicit support from their supervisor, regular meetings, and measures to reduce potential stalking or violence in the workplace; unsurprisingly, victim blaming and leaving the employee to address the situation on their own were labeled experienced as negative.² Employers may consider implementing physical security, access controls and panic alarms, and enhancing coworkers’ situational awareness.²¹ Explicit policies about and attention to reducing workplace violence, including stalking, are always beneficial—and in some settings such policies may be a regulatory requirement.²² Large health care organizations may benefit from developing specialized threat management programs to assist with the evaluation and mitigation of stalking and other workplace violence risks.^15,23

Self-care considerations

The impact of stalking can include psychological distress, disruption of work and personal relationships, and false allegations of impropriety. Stalking can make targets feel isolated, violated, and fearful, which makes it challenging to reach out to others for support and safety. It takes time to regain a sense of safety and to find a “new normal,” particularly while experiencing and responding to stalking behavior. Notifying close personal contacts such as family and coworkers about what is occurring (without sharing protected health information) can be helpful for recovery and important for the clinician’s safety. Reaching out for organizational and legal supports is also prudent. It is also important to allow time for, and patience with, a targeted individual’s normal responses, such as decreased work performance, sleep/appetite changes, and hypervigilance, without pathologizing these common stress reactions. Further review of appropriate resources by impacted clinicians is advisable.^24-26

Approved by the FDA on May 28, 2021, olanzapine-samidorphan combination (OSC) (Lybalvi, manufactured and distributed by Alkermes, Inc. Waltham, MA USA) is intended to help mitigate some of the weight gain that can be anticipated with the use of olanzapine alone (Table).^1-3 Olanzapine (Zyprexa, originally manufactured and distributed by Eli Lilly and Company/Lilly USA, LLC, Indianapolis, IN USA) is a second-generation antipsychotic that has been available for a quarter century.⁴ Although highly efficacious,^5,6 olanzapine has been associated with weight gain, at times substantial, as well as disturbances in glucose and lipid metabolism.⁷ The addition of samidorphan, an opioid antagonist, to olanzapine in a single tablet may act to decrease the amount of long-term weight gain that can be expected for some patients taking olanzapine alone, consequently minimizing the anticipated increase in waist circumference (a proxy for the measurement of burden imposed by metabolically active adipose tissue). Approval of OSC for the treatment of schizophrenia was based on 2 pivotal randomized controlled trials and their extension studies.^8-11 Approval of OSC for bipolar I disorder (acute treatment of manic/mixed episodes as a monotherapy or adjunctive to lithium or valproate, and as a monotherapy maintenance treatment) was based on legacy studies conducted with olanzapine, after establishing that samidorphan does not alter the pharmacokinetics of olanzapine, including in combination with lithium or valproate.^3,12,13 OSC should be distinguished from a different combination product, olanzapine-fluoxetine combination (Symbyax, originally manufactured and distributed by Eli Lilly and Company/Lilly USA, LLC, Indianapolis, IN USA), approved for acute depressive episodes associated with bipolar I disorder and for treatment-resistant depression.¹⁴

OSC offers the potential to consider olanzapine earlier in the treatment of schizophrenia or bipolar I disorder, especially among practitioners who might otherwise be hesitant to prescribe this agent because of concerns over the risk of excessive weight gain.

OSC is available in 4 dosage strengths containing 5 mg, 10 mg, 15 mg, or 20 mg of olanzapine; all tablets contain 10 mg of samidorphan.² The recommended starting dose for OSC mirrors the language contained in the legacy olanzapine product label.⁴ For schizophrenia, the recommended initial dose (olanzapine/samidorphan) is 5 mg/10 mg or 10 mg/10 mg once daily. For bipolar I manic or mixed episodes, the recommended starting dose for monotherapy is 10 mg/10 mg or 15 mg/10 mg, and for use with lithium or valproate, 10 mg/10 mg. For all indications, the recommended target dose can be 10 mg/10 mg, 15 mg/10 mg, or 20 mg/10 mg, with 5 mg/10 mg as an additional potential dose for maintenance monotherapy of bipolar I disorder. The maximum dose is 20 mg/10 mg once daily. Because the amount of samidorphan in each tablet is fixed at 10 mg, combining tablets of OSC, or cutting OSC tablets in half, is not advisable.

Continue to: How it works...

Product labeling notes that olanzapine is an atypical antipsychotic, that its efficacy in schizophrenia or bipolar I disorder could be mediated through a combination of dopamine and serotonin type 2 (5HT2) antagonism, and that the mechanism of action of samidorphan could be mediated through opioid receptor antagonism.²

The pharmacodynamic profile of olanzapine is complex.² It binds with high affinity to the following receptors: serotonin 5HT2A/2C, 5HT6 (Ki = 4, 11, and 5 nM, respectively), dopamine D1-4 (Ki = 11-31 nM), histamine H1 (Ki = 7 nM), and adrenergic alpha-1 receptors (Ki = 19 nM). Olanzapine is an antagonist with moderate affinity binding for serotonin 5HT3 (Ki = 57 nM) and muscarinic M1-5 (Ki = 73, 96, 132, 32, and 48 nM, respectively). Olanzapine binds with low affinity to gamma aminobutyric acid type A (GABA-A), benzodiazepine, and beta-adrenergic receptors (Ki >10 µM). Olanzapine’s muscarinic receptor affinity can explain why olanzapine can be associated with constipation, dry mouth, and tachycardia, all adverse reactions possibly related to cholinergic antagonism. Thus, OSC should be used with caution in patients with a current diagnosis or prior history of urinary retention, clinically significant prostatic hypertrophy, constipation, or a history of paralytic ileus or related conditions; a potential drug-drug interaction can be anticipated with concomitant use of anticholinergic medications.² Other pharmacodynamic drug-drug interactions that can occur with the olanzapine component of OSC include the possibility that diazepam, alcohol, or other CNS-acting drugs may potentiate orthostatic hypotension, and there may be a need to reduce the dosage of concomitantly prescribed antihypertensive drugs in patients being treated for hypertension. Moreover, OSC is not recommended in patients receiving levodopa and dopamine agonists.

Samidorphan binds to the mu-, kappa-, and delta-opioid receptors (Ki = .052, .23, and 2.7 nM, respectively).² Samidorphan is an antagonist at the mu-opioid receptors with partial agonist activity at kappa- and delta-opioid receptors. A major human metabolite of samidorphan (N-dealkylated) binds to the mu-, kappa-, and delta-opioid receptors (Ki = .26, 23, and 56 nM, respectively), and functions as a mu-opioid receptor agonist. The N-oxide major human metabolite binds to mu-, kappa-, and delta-opioid receptors (Ki = 8, 110, and 280 nM, respectively) and functions as a mu-opioid receptor antagonist. This profile differs from that of other opioid antagonists such as naltrexone.^15,16

OSC is not a scheduled drug subject to the Controlled Substances Act. Because samidorphan functions as an opioid antagonist, OSC is contraindicated in patients using opioids or undergoing acute opioid withdrawal.² To avoid precipitating opioid withdrawal, there should be at least a 7-day opioid-free interval from the last use of short-acting opioids, and at least a 14-day opioid-free interval from the last use of long-acting opioids, before initiating OSC. In emergency situations when an opioid is required, OSC should be discontinued. Patients who attempt to overcome opioid blockade while receiving OSC by using high or repeated doses of exogenous opioids could experience life-threatening or fatal opioid intoxication. Likewise, patients may have decreased tolerance to opioids if OSC therapy is interrupted or discontinued.

Regarding cardiac electrophysiology, OSC was not observed to prolong the electrocardiogram QTc interval to any clinically relevant extent when tested at doses up to 30 mg/30 mg (1.5 times and 3 times the maximum recommended daily dosage of olanzapine and samidorphan, respectively).¹⁷

Clinical pharmacokinetics

The pharmacokinetics of both olanzapine and samidorphan are linear over the clinical dose range and there is no pharmacokinetic interaction between olanzapine and samidorphan after oral administration of OSC.² Coadministration of OSC with lithium or valproate does not have a clinically significant effect on systemic exposure of lithium or valproate.¹³ OSC steady-state concentrations of olanzapine and samidorphan are reached within 7 days, with accumulation at steady state being 2-fold for olanzapine and 1.3-fold for samidorphan (at 5 days). Elimination half-life for olanzapine is 35 to 52 hours, and for samidorphan, 7 to 11 hours. Olanzapine is metabolized primarily via UGT1A4 and CYP1A2, whereas samidorphan is primarily metabolized by CYP3A4. Consequently, concomitant use of OSC with strong CYP3A4 inducers is not recommended. The recommendation regarding CYP1A2 modulators and OSC are similar to those for olanzapine^2,4: consider reducing the dosage of the olanzapine component in OSC when used concomitantly with strong CYP1A2 inhibitors, and consider increasing the dosage of the olanzapine component in OSC when used concomitantly with CYP1A2 inducers. Because cigarette smoke contains polycyclic aromatic hydrocarbons that act as CYP1A2 inducers,¹⁸ olanzapine clearance is much higher in smokers than in nonsmokers.² This translates to potentially clinically relevant differences when optimizing the dose. In a study of patients with schizophrenia, olanzapine concentrations were lower in self-reported smokers (16.5, 34.2, and 60.9 ng/mL) than in self-reported nonsmokers (25.6, 43.4, and 113.2 ng/mL) for dosages of 10, 20, and 40 mg/d, respectively.¹⁹ In contrast, samidorphan pharmacokinetics are not affected by smoking status.²

No dose adjustment of OSC is needed in patients with hepatic or renal impairment; however, OSC is not recommended for patients with end-stage renal disease because this has not been specifically studied.²

Continue to: Efficacy...

The efficacy of OSC in the treatment of schizophrenia in adults is supported, in part, by the extensive legacy of studies of orally administered olanzapine.² For OSC specifically, acute efficacy was primarily demonstrated in a randomized, double-blind, phase 3, 4-week study establishing superiority vs placebo in acutely exacerbated patients with schizophrenia.⁸ Mitigation of weight gain was assessed separately in a randomized, double-blind, phase 3, 24-week study comparing OSC with olanzapine in non-acute outpatients with schizophrenia.¹⁰ Both of these 2 trials were accompanied by 52-week open-label extension studies.^9,11

The 4-week study evaluated the antipsychotic efficacy of OSC in 401 patients experiencing an acute exacerbation or relapse of schizophrenia who required inpatient treatment.⁸ Patients were required to have a Positive and Negative Syndrome Scale (PANSS) total score ≥80, with a score ≥4 on at least 3 of selected positive symptoms, and a Clinical Global Impression-Severity (CGI-S) score ≥4 at baseline and screening. Patients were required to be inpatients for the first 2 weeks of the study, and were encouraged to remain as inpatients for all 4 weeks. Patients were randomized to receive OSC, olanzapine, or placebo. Dosing was once-daily and flexible based on clinical response and tolerability for the first 2 weeks of the study, and fixed thereafter. Patients assigned to OSC could receive 10 mg/10 mg or 20 mg/10 mg, and patients randomized to olanzapine could receive 10 mg or 20 mg. The study compared OSC with placebo, with olanzapine serving as an active control. Treatment with OSC resulted in significant improvements in symptoms compared with placebo at Week 4, as measured by changes in PANSS total scores from baseline. Improvement in PANSS scores with OSC relative to placebo was similar to that observed with olanzapine. The antipsychotic efficacy of OSC relative to placebo was also supported by improvements in CGI-S scores. Thus, the inclusion of samidorphan in OSC did not negatively impact the antipsychotic efficacy of olanzapine.

In the 24-week study, 561 patients were randomized to OSC or olanzapine.¹⁰ There was no placebo control. Patients were treated with doses of OSC 10 mg/10 mg or 20 mg/10 mg, or with doses of olanzapine 10 mg or 20 mg. Dosing was flexible for the first 4 weeks of the study and fixed thereafter. Eligible patients were age 18 to 55 years (younger than the 4-week study, where the maximum age was 70 years), with a body mass index of 18 to 30 kg/m² (lower than the upper limit of 40 kg/m² used in the 4-week study). In contrast to the acutely exacerbated patients in the 4-week study, patients were required to have a PANSS total score of 50 to 90, CGI-S score ≤4, and symptoms suitable for outpatient treatment. The co-primary endpoints were percent change from baseline in body weight and proportion of patients who gained ≥10% body weight at Week 24. Treatment with OSC or olanzapine resulted in similar improvements in PANSS total and CGI-S scores, but treatment with OSC was associated with statistically significantly less weight gain than treatment with olanzapine, and with a smaller proportion of patients who gained ≥10% body weight. The least squares mean percent weight change from baseline to the end of treatment was 4.2% with OSC vs 6.6% with olanzapine. Although patients treated with OSC or olanzapine had similar weight gain for the first 4 weeks of treatment, OSC weight gain stabilized after approximately the 6th week, whereas patients who received olanzapine continued to gain weight throughout the remainder of the treatment period. The risk of gaining ≥10% body weight from baseline was reduced by 50% with OSC compared with olanzapine. Moreover, the odds of gaining ≥7% body weight from baseline at Week 24 were also reduced by 50% for OSC compared with olanzapine. OSC was also associated with smaller increases in waist circumference compared with olanzapine, which was observable as early as Week 1. The risk of experiencing a 5-cm increase in waist circumference was 50% lower for patients treated with OSC vs olanzapine, a relevant threshold in assessing risk of all-cause mortality and cardiovascular disease.²⁰ However, changes in metabolic laboratory parameters in patients treated with OSC or olanzapine were generally small and were similar between groups. In addition, there were little differences between the 2 treatment groups in metabolic parameter changes considered to be of potential clinical significance, based on commonly used thresholds.

Patients on stable, chronic olanzapine therapy were not specifically studied, so the weight effect of switching from olanzapine to OSC is unknown.For bipolar I manic or mixed episodes, the use of OSC as monotherapy or in combination with lithium or valproate, as well as for maintenance monotherapy, was approved based on legacy clinical trials with olanzapine, as described in product labeling,^2,4 as well as pharmacokinetic data evidencing that OSC did not have a clinically significant effect on the pharmacokinetics of lithium or valproate.¹³ A study is in progress to evaluate the effect of OSC compared with olanzapine on body weight in young adults with schizophrenia, schizophreniform, or bipolar I disorder who are early in their illness (ClinicalTrials.gov identifier: NCT03187769).

Overall tolerability and safety

The systemic safety and tolerability profile for OSC would be expected to be similar to that for olanzapine, unless there are adverse events that are specifically related to the samidorphan component. In the 4-week acute study described above,⁸ adverse events that occurred at least twice the rate of placebo with OSC included increased weight (18.7%, 14.3%, 3.0%, for OSC, olanzapine, and placebo, respectively), somnolence (9.0%, 9.8%, 2.2%), dry mouth (7.5%, 5.3%, 0.7%), and headache (6.0%, 5.3%, 3.0%). In the 24-week study,¹⁰ which did not have a placebo control, the most commonly reported adverse events (≥10% of patients) were increased weight (24.8% vs 36.2% for OSC vs olanzapine), somnolence (21.2% vs 18.1%), dry mouth (12.8% vs 8.0%), and increased appetite (10.9% vs 12.3%). In both studies, rates of discontinuation due to adverse events were low and similar between groups (in the 4-week study, 1.5% for OSC, 2.3% for olanzapine, and 5.2% for placebo; in the 24-week study, 12.0% for OSC and 9.8% for olanzapine).

In the 2 open-label, phase 3, 52-week extension studies,^9,11 long-term tolerability was evidenced by low rates discontinuation due to adverse events (≤6%). Neither extension study reported any clinically meaningful changes over time in hematology, biochemistry, vital signs, or electrocardiogram parameters.³ In addition to durability of antipsychotic response as evidenced by sustained improvements in PANSS and CGI-S scores over time, waist circumference and weight remained stable, and the observed long-term changes in weight were consistent with weight changes observed with other second-generation antipsychotics.³ Long-term changes in metabolic laboratory parameter values were small and remained stable, and there was little change in glycosylated hemoglobin (hemoglobin A1c) values, which suggests that glycemic control was maintained with long-term OSC treatment.³ Caveats to consider are that the extension studies were open label without comparators, and they may have selected for patients who responded favorably to OSC treatment in the preceding studies.³Warnings and precautions in OSC product labeling are generally similar to those for other second-generation antipsychotics,²¹ other than warnings and precautions specifically related to samidorphan being an opioid antagonist, and special mention of “Drug Reaction with Eosinophilia and Systemic Symptoms” and “Anticholinergic (Antimuscarinic) Effects” warnings, which also are contained in the olanzapine legacy label.^2,4

Summary

Olanzapine has a plethora of evidence supporting its robust efficacy profile^5,6; however, its use is stymied by an unfavorable weight and metabolic profile.⁷ OSC may help mitigate at least some of the weight gain that would be expected with the use of olanzapine alone in the long-term treatment of patients with schizophrenia or bipolar I disorder. The addition of samidorphan does not deleteriously affect the efficacy of olanzapine, but decreases the risk of gaining ≥10% or ≥7% of baseline body weight by approximately 50% compared with olanzapine alone. Increase in waist circumference, a proxy for how much metabolically active fat one has, is lower with OSC than it is with olanzapine. Because samidorphan is an opioid receptor antagonist, OSC is contraindicated in patients using opioids and in those undergoing acute opioid withdrawal. Dosage strengths available for OSC parallel those for olanzapine, and all strengths including the same fixed dose of samidorphan—10 mg—so advise patients not to double up on the tablets, and to not split them.

Related Resource

• Olanzapine and samidorphan (Lybalvi) prescribing information. https://www.lybalvi.com/lybalvi-prescribing-information.pdf

Drug Brand Names

Diazepam • Valium

Lithium • Eskalith, Lithobid

Olanzapine • Zyprexa

Olanzapine-fluoxetine combination • Symbyax

Olanzapine-samidorphan combination • Lybalvi

Valproate • Depakote, Depakene

Bottom Line

Olanzapine-samidorphan combination (OSC) is intended to mitigate some of the weight gain anticipated when using olanzapine alone. For clinicians who have prescribed olanzapine and have seen its therapeutic benefits, OSC will be a welcome addition to the therapeutic armamentarium. For practitioners who may have avoided olanzapine entirely, OSC can provide another means of offering this therapeutic option and counter “olanzapine hesitancy.”

Approved by the FDA on May 28, 2021, olanzapine-samidorphan combination (OSC) (Lybalvi, manufactured and distributed by Alkermes, Inc. Waltham, MA USA) is intended to help mitigate some of the weight gain that can be anticipated with the use of olanzapine alone (Table).^1-3 Olanzapine (Zyprexa, originally manufactured and distributed by Eli Lilly and Company/Lilly USA, LLC, Indianapolis, IN USA) is a second-generation antipsychotic that has been available for a quarter century.⁴ Although highly efficacious,^5,6 olanzapine has been associated with weight gain, at times substantial, as well as disturbances in glucose and lipid metabolism.⁷ The addition of samidorphan, an opioid antagonist, to olanzapine in a single tablet may act to decrease the amount of long-term weight gain that can be expected for some patients taking olanzapine alone, consequently minimizing the anticipated increase in waist circumference (a proxy for the measurement of burden imposed by metabolically active adipose tissue). Approval of OSC for the treatment of schizophrenia was based on 2 pivotal randomized controlled trials and their extension studies.^8-11 Approval of OSC for bipolar I disorder (acute treatment of manic/mixed episodes as a monotherapy or adjunctive to lithium or valproate, and as a monotherapy maintenance treatment) was based on legacy studies conducted with olanzapine, after establishing that samidorphan does not alter the pharmacokinetics of olanzapine, including in combination with lithium or valproate.^3,12,13 OSC should be distinguished from a different combination product, olanzapine-fluoxetine combination (Symbyax, originally manufactured and distributed by Eli Lilly and Company/Lilly USA, LLC, Indianapolis, IN USA), approved for acute depressive episodes associated with bipolar I disorder and for treatment-resistant depression.¹⁴

OSC offers the potential to consider olanzapine earlier in the treatment of schizophrenia or bipolar I disorder, especially among practitioners who might otherwise be hesitant to prescribe this agent because of concerns over the risk of excessive weight gain.

OSC is available in 4 dosage strengths containing 5 mg, 10 mg, 15 mg, or 20 mg of olanzapine; all tablets contain 10 mg of samidorphan.² The recommended starting dose for OSC mirrors the language contained in the legacy olanzapine product label.⁴ For schizophrenia, the recommended initial dose (olanzapine/samidorphan) is 5 mg/10 mg or 10 mg/10 mg once daily. For bipolar I manic or mixed episodes, the recommended starting dose for monotherapy is 10 mg/10 mg or 15 mg/10 mg, and for use with lithium or valproate, 10 mg/10 mg. For all indications, the recommended target dose can be 10 mg/10 mg, 15 mg/10 mg, or 20 mg/10 mg, with 5 mg/10 mg as an additional potential dose for maintenance monotherapy of bipolar I disorder. The maximum dose is 20 mg/10 mg once daily. Because the amount of samidorphan in each tablet is fixed at 10 mg, combining tablets of OSC, or cutting OSC tablets in half, is not advisable.

Continue to: How it works...

Product labeling notes that olanzapine is an atypical antipsychotic, that its efficacy in schizophrenia or bipolar I disorder could be mediated through a combination of dopamine and serotonin type 2 (5HT2) antagonism, and that the mechanism of action of samidorphan could be mediated through opioid receptor antagonism.²

The pharmacodynamic profile of olanzapine is complex.² It binds with high affinity to the following receptors: serotonin 5HT2A/2C, 5HT6 (Ki = 4, 11, and 5 nM, respectively), dopamine D1-4 (Ki = 11-31 nM), histamine H1 (Ki = 7 nM), and adrenergic alpha-1 receptors (Ki = 19 nM). Olanzapine is an antagonist with moderate affinity binding for serotonin 5HT3 (Ki = 57 nM) and muscarinic M1-5 (Ki = 73, 96, 132, 32, and 48 nM, respectively). Olanzapine binds with low affinity to gamma aminobutyric acid type A (GABA-A), benzodiazepine, and beta-adrenergic receptors (Ki >10 µM). Olanzapine’s muscarinic receptor affinity can explain why olanzapine can be associated with constipation, dry mouth, and tachycardia, all adverse reactions possibly related to cholinergic antagonism. Thus, OSC should be used with caution in patients with a current diagnosis or prior history of urinary retention, clinically significant prostatic hypertrophy, constipation, or a history of paralytic ileus or related conditions; a potential drug-drug interaction can be anticipated with concomitant use of anticholinergic medications.² Other pharmacodynamic drug-drug interactions that can occur with the olanzapine component of OSC include the possibility that diazepam, alcohol, or other CNS-acting drugs may potentiate orthostatic hypotension, and there may be a need to reduce the dosage of concomitantly prescribed antihypertensive drugs in patients being treated for hypertension. Moreover, OSC is not recommended in patients receiving levodopa and dopamine agonists.

Samidorphan binds to the mu-, kappa-, and delta-opioid receptors (Ki = .052, .23, and 2.7 nM, respectively).² Samidorphan is an antagonist at the mu-opioid receptors with partial agonist activity at kappa- and delta-opioid receptors. A major human metabolite of samidorphan (N-dealkylated) binds to the mu-, kappa-, and delta-opioid receptors (Ki = .26, 23, and 56 nM, respectively), and functions as a mu-opioid receptor agonist. The N-oxide major human metabolite binds to mu-, kappa-, and delta-opioid receptors (Ki = 8, 110, and 280 nM, respectively) and functions as a mu-opioid receptor antagonist. This profile differs from that of other opioid antagonists such as naltrexone.^15,16

OSC is not a scheduled drug subject to the Controlled Substances Act. Because samidorphan functions as an opioid antagonist, OSC is contraindicated in patients using opioids or undergoing acute opioid withdrawal.² To avoid precipitating opioid withdrawal, there should be at least a 7-day opioid-free interval from the last use of short-acting opioids, and at least a 14-day opioid-free interval from the last use of long-acting opioids, before initiating OSC. In emergency situations when an opioid is required, OSC should be discontinued. Patients who attempt to overcome opioid blockade while receiving OSC by using high or repeated doses of exogenous opioids could experience life-threatening or fatal opioid intoxication. Likewise, patients may have decreased tolerance to opioids if OSC therapy is interrupted or discontinued.

Regarding cardiac electrophysiology, OSC was not observed to prolong the electrocardiogram QTc interval to any clinically relevant extent when tested at doses up to 30 mg/30 mg (1.5 times and 3 times the maximum recommended daily dosage of olanzapine and samidorphan, respectively).¹⁷

Clinical pharmacokinetics

The pharmacokinetics of both olanzapine and samidorphan are linear over the clinical dose range and there is no pharmacokinetic interaction between olanzapine and samidorphan after oral administration of OSC.² Coadministration of OSC with lithium or valproate does not have a clinically significant effect on systemic exposure of lithium or valproate.¹³ OSC steady-state concentrations of olanzapine and samidorphan are reached within 7 days, with accumulation at steady state being 2-fold for olanzapine and 1.3-fold for samidorphan (at 5 days). Elimination half-life for olanzapine is 35 to 52 hours, and for samidorphan, 7 to 11 hours. Olanzapine is metabolized primarily via UGT1A4 and CYP1A2, whereas samidorphan is primarily metabolized by CYP3A4. Consequently, concomitant use of OSC with strong CYP3A4 inducers is not recommended. The recommendation regarding CYP1A2 modulators and OSC are similar to those for olanzapine^2,4: consider reducing the dosage of the olanzapine component in OSC when used concomitantly with strong CYP1A2 inhibitors, and consider increasing the dosage of the olanzapine component in OSC when used concomitantly with CYP1A2 inducers. Because cigarette smoke contains polycyclic aromatic hydrocarbons that act as CYP1A2 inducers,¹⁸ olanzapine clearance is much higher in smokers than in nonsmokers.² This translates to potentially clinically relevant differences when optimizing the dose. In a study of patients with schizophrenia, olanzapine concentrations were lower in self-reported smokers (16.5, 34.2, and 60.9 ng/mL) than in self-reported nonsmokers (25.6, 43.4, and 113.2 ng/mL) for dosages of 10, 20, and 40 mg/d, respectively.¹⁹ In contrast, samidorphan pharmacokinetics are not affected by smoking status.²

No dose adjustment of OSC is needed in patients with hepatic or renal impairment; however, OSC is not recommended for patients with end-stage renal disease because this has not been specifically studied.²

Continue to: Efficacy...

The efficacy of OSC in the treatment of schizophrenia in adults is supported, in part, by the extensive legacy of studies of orally administered olanzapine.² For OSC specifically, acute efficacy was primarily demonstrated in a randomized, double-blind, phase 3, 4-week study establishing superiority vs placebo in acutely exacerbated patients with schizophrenia.⁸ Mitigation of weight gain was assessed separately in a randomized, double-blind, phase 3, 24-week study comparing OSC with olanzapine in non-acute outpatients with schizophrenia.¹⁰ Both of these 2 trials were accompanied by 52-week open-label extension studies.^9,11

The 4-week study evaluated the antipsychotic efficacy of OSC in 401 patients experiencing an acute exacerbation or relapse of schizophrenia who required inpatient treatment.⁸ Patients were required to have a Positive and Negative Syndrome Scale (PANSS) total score ≥80, with a score ≥4 on at least 3 of selected positive symptoms, and a Clinical Global Impression-Severity (CGI-S) score ≥4 at baseline and screening. Patients were required to be inpatients for the first 2 weeks of the study, and were encouraged to remain as inpatients for all 4 weeks. Patients were randomized to receive OSC, olanzapine, or placebo. Dosing was once-daily and flexible based on clinical response and tolerability for the first 2 weeks of the study, and fixed thereafter. Patients assigned to OSC could receive 10 mg/10 mg or 20 mg/10 mg, and patients randomized to olanzapine could receive 10 mg or 20 mg. The study compared OSC with placebo, with olanzapine serving as an active control. Treatment with OSC resulted in significant improvements in symptoms compared with placebo at Week 4, as measured by changes in PANSS total scores from baseline. Improvement in PANSS scores with OSC relative to placebo was similar to that observed with olanzapine. The antipsychotic efficacy of OSC relative to placebo was also supported by improvements in CGI-S scores. Thus, the inclusion of samidorphan in OSC did not negatively impact the antipsychotic efficacy of olanzapine.

In the 24-week study, 561 patients were randomized to OSC or olanzapine.¹⁰ There was no placebo control. Patients were treated with doses of OSC 10 mg/10 mg or 20 mg/10 mg, or with doses of olanzapine 10 mg or 20 mg. Dosing was flexible for the first 4 weeks of the study and fixed thereafter. Eligible patients were age 18 to 55 years (younger than the 4-week study, where the maximum age was 70 years), with a body mass index of 18 to 30 kg/m² (lower than the upper limit of 40 kg/m² used in the 4-week study). In contrast to the acutely exacerbated patients in the 4-week study, patients were required to have a PANSS total score of 50 to 90, CGI-S score ≤4, and symptoms suitable for outpatient treatment. The co-primary endpoints were percent change from baseline in body weight and proportion of patients who gained ≥10% body weight at Week 24. Treatment with OSC or olanzapine resulted in similar improvements in PANSS total and CGI-S scores, but treatment with OSC was associated with statistically significantly less weight gain than treatment with olanzapine, and with a smaller proportion of patients who gained ≥10% body weight. The least squares mean percent weight change from baseline to the end of treatment was 4.2% with OSC vs 6.6% with olanzapine. Although patients treated with OSC or olanzapine had similar weight gain for the first 4 weeks of treatment, OSC weight gain stabilized after approximately the 6th week, whereas patients who received olanzapine continued to gain weight throughout the remainder of the treatment period. The risk of gaining ≥10% body weight from baseline was reduced by 50% with OSC compared with olanzapine. Moreover, the odds of gaining ≥7% body weight from baseline at Week 24 were also reduced by 50% for OSC compared with olanzapine. OSC was also associated with smaller increases in waist circumference compared with olanzapine, which was observable as early as Week 1. The risk of experiencing a 5-cm increase in waist circumference was 50% lower for patients treated with OSC vs olanzapine, a relevant threshold in assessing risk of all-cause mortality and cardiovascular disease.²⁰ However, changes in metabolic laboratory parameters in patients treated with OSC or olanzapine were generally small and were similar between groups. In addition, there were little differences between the 2 treatment groups in metabolic parameter changes considered to be of potential clinical significance, based on commonly used thresholds.

Patients on stable, chronic olanzapine therapy were not specifically studied, so the weight effect of switching from olanzapine to OSC is unknown.For bipolar I manic or mixed episodes, the use of OSC as monotherapy or in combination with lithium or valproate, as well as for maintenance monotherapy, was approved based on legacy clinical trials with olanzapine, as described in product labeling,^2,4 as well as pharmacokinetic data evidencing that OSC did not have a clinically significant effect on the pharmacokinetics of lithium or valproate.¹³ A study is in progress to evaluate the effect of OSC compared with olanzapine on body weight in young adults with schizophrenia, schizophreniform, or bipolar I disorder who are early in their illness (ClinicalTrials.gov identifier: NCT03187769).

Overall tolerability and safety

The systemic safety and tolerability profile for OSC would be expected to be similar to that for olanzapine, unless there are adverse events that are specifically related to the samidorphan component. In the 4-week acute study described above,⁸ adverse events that occurred at least twice the rate of placebo with OSC included increased weight (18.7%, 14.3%, 3.0%, for OSC, olanzapine, and placebo, respectively), somnolence (9.0%, 9.8%, 2.2%), dry mouth (7.5%, 5.3%, 0.7%), and headache (6.0%, 5.3%, 3.0%). In the 24-week study,¹⁰ which did not have a placebo control, the most commonly reported adverse events (≥10% of patients) were increased weight (24.8% vs 36.2% for OSC vs olanzapine), somnolence (21.2% vs 18.1%), dry mouth (12.8% vs 8.0%), and increased appetite (10.9% vs 12.3%). In both studies, rates of discontinuation due to adverse events were low and similar between groups (in the 4-week study, 1.5% for OSC, 2.3% for olanzapine, and 5.2% for placebo; in the 24-week study, 12.0% for OSC and 9.8% for olanzapine).

In the 2 open-label, phase 3, 52-week extension studies,^9,11 long-term tolerability was evidenced by low rates discontinuation due to adverse events (≤6%). Neither extension study reported any clinically meaningful changes over time in hematology, biochemistry, vital signs, or electrocardiogram parameters.³ In addition to durability of antipsychotic response as evidenced by sustained improvements in PANSS and CGI-S scores over time, waist circumference and weight remained stable, and the observed long-term changes in weight were consistent with weight changes observed with other second-generation antipsychotics.³ Long-term changes in metabolic laboratory parameter values were small and remained stable, and there was little change in glycosylated hemoglobin (hemoglobin A1c) values, which suggests that glycemic control was maintained with long-term OSC treatment.³ Caveats to consider are that the extension studies were open label without comparators, and they may have selected for patients who responded favorably to OSC treatment in the preceding studies.³Warnings and precautions in OSC product labeling are generally similar to those for other second-generation antipsychotics,²¹ other than warnings and precautions specifically related to samidorphan being an opioid antagonist, and special mention of “Drug Reaction with Eosinophilia and Systemic Symptoms” and “Anticholinergic (Antimuscarinic) Effects” warnings, which also are contained in the olanzapine legacy label.^2,4

Summary

Olanzapine has a plethora of evidence supporting its robust efficacy profile^5,6; however, its use is stymied by an unfavorable weight and metabolic profile.⁷ OSC may help mitigate at least some of the weight gain that would be expected with the use of olanzapine alone in the long-term treatment of patients with schizophrenia or bipolar I disorder. The addition of samidorphan does not deleteriously affect the efficacy of olanzapine, but decreases the risk of gaining ≥10% or ≥7% of baseline body weight by approximately 50% compared with olanzapine alone. Increase in waist circumference, a proxy for how much metabolically active fat one has, is lower with OSC than it is with olanzapine. Because samidorphan is an opioid receptor antagonist, OSC is contraindicated in patients using opioids and in those undergoing acute opioid withdrawal. Dosage strengths available for OSC parallel those for olanzapine, and all strengths including the same fixed dose of samidorphan—10 mg—so advise patients not to double up on the tablets, and to not split them.

Related Resource

• Olanzapine and samidorphan (Lybalvi) prescribing information. https://www.lybalvi.com/lybalvi-prescribing-information.pdf

Drug Brand Names

Diazepam • Valium

Lithium • Eskalith, Lithobid

Olanzapine • Zyprexa

Olanzapine-fluoxetine combination • Symbyax

Olanzapine-samidorphan combination • Lybalvi

Valproate • Depakote, Depakene

Bottom Line

Olanzapine-samidorphan combination (OSC) is intended to mitigate some of the weight gain anticipated when using olanzapine alone. For clinicians who have prescribed olanzapine and have seen its therapeutic benefits, OSC will be a welcome addition to the therapeutic armamentarium. For practitioners who may have avoided olanzapine entirely, OSC can provide another means of offering this therapeutic option and counter “olanzapine hesitancy.”

Approved by the FDA on May 28, 2021, olanzapine-samidorphan combination (OSC) (Lybalvi, manufactured and distributed by Alkermes, Inc. Waltham, MA USA) is intended to help mitigate some of the weight gain that can be anticipated with the use of olanzapine alone (Table).^1-3 Olanzapine (Zyprexa, originally manufactured and distributed by Eli Lilly and Company/Lilly USA, LLC, Indianapolis, IN USA) is a second-generation antipsychotic that has been available for a quarter century.⁴ Although highly efficacious,^5,6 olanzapine has been associated with weight gain, at times substantial, as well as disturbances in glucose and lipid metabolism.⁷ The addition of samidorphan, an opioid antagonist, to olanzapine in a single tablet may act to decrease the amount of long-term weight gain that can be expected for some patients taking olanzapine alone, consequently minimizing the anticipated increase in waist circumference (a proxy for the measurement of burden imposed by metabolically active adipose tissue). Approval of OSC for the treatment of schizophrenia was based on 2 pivotal randomized controlled trials and their extension studies.^8-11 Approval of OSC for bipolar I disorder (acute treatment of manic/mixed episodes as a monotherapy or adjunctive to lithium or valproate, and as a monotherapy maintenance treatment) was based on legacy studies conducted with olanzapine, after establishing that samidorphan does not alter the pharmacokinetics of olanzapine, including in combination with lithium or valproate.^3,12,13 OSC should be distinguished from a different combination product, olanzapine-fluoxetine combination (Symbyax, originally manufactured and distributed by Eli Lilly and Company/Lilly USA, LLC, Indianapolis, IN USA), approved for acute depressive episodes associated with bipolar I disorder and for treatment-resistant depression.¹⁴

OSC offers the potential to consider olanzapine earlier in the treatment of schizophrenia or bipolar I disorder, especially among practitioners who might otherwise be hesitant to prescribe this agent because of concerns over the risk of excessive weight gain.

OSC is available in 4 dosage strengths containing 5 mg, 10 mg, 15 mg, or 20 mg of olanzapine; all tablets contain 10 mg of samidorphan.² The recommended starting dose for OSC mirrors the language contained in the legacy olanzapine product label.⁴ For schizophrenia, the recommended initial dose (olanzapine/samidorphan) is 5 mg/10 mg or 10 mg/10 mg once daily. For bipolar I manic or mixed episodes, the recommended starting dose for monotherapy is 10 mg/10 mg or 15 mg/10 mg, and for use with lithium or valproate, 10 mg/10 mg. For all indications, the recommended target dose can be 10 mg/10 mg, 15 mg/10 mg, or 20 mg/10 mg, with 5 mg/10 mg as an additional potential dose for maintenance monotherapy of bipolar I disorder. The maximum dose is 20 mg/10 mg once daily. Because the amount of samidorphan in each tablet is fixed at 10 mg, combining tablets of OSC, or cutting OSC tablets in half, is not advisable.

Continue to: How it works...

Product labeling notes that olanzapine is an atypical antipsychotic, that its efficacy in schizophrenia or bipolar I disorder could be mediated through a combination of dopamine and serotonin type 2 (5HT2) antagonism, and that the mechanism of action of samidorphan could be mediated through opioid receptor antagonism.²

The pharmacodynamic profile of olanzapine is complex.² It binds with high affinity to the following receptors: serotonin 5HT2A/2C, 5HT6 (Ki = 4, 11, and 5 nM, respectively), dopamine D1-4 (Ki = 11-31 nM), histamine H1 (Ki = 7 nM), and adrenergic alpha-1 receptors (Ki = 19 nM). Olanzapine is an antagonist with moderate affinity binding for serotonin 5HT3 (Ki = 57 nM) and muscarinic M1-5 (Ki = 73, 96, 132, 32, and 48 nM, respectively). Olanzapine binds with low affinity to gamma aminobutyric acid type A (GABA-A), benzodiazepine, and beta-adrenergic receptors (Ki >10 µM). Olanzapine’s muscarinic receptor affinity can explain why olanzapine can be associated with constipation, dry mouth, and tachycardia, all adverse reactions possibly related to cholinergic antagonism. Thus, OSC should be used with caution in patients with a current diagnosis or prior history of urinary retention, clinically significant prostatic hypertrophy, constipation, or a history of paralytic ileus or related conditions; a potential drug-drug interaction can be anticipated with concomitant use of anticholinergic medications.² Other pharmacodynamic drug-drug interactions that can occur with the olanzapine component of OSC include the possibility that diazepam, alcohol, or other CNS-acting drugs may potentiate orthostatic hypotension, and there may be a need to reduce the dosage of concomitantly prescribed antihypertensive drugs in patients being treated for hypertension. Moreover, OSC is not recommended in patients receiving levodopa and dopamine agonists.

Samidorphan binds to the mu-, kappa-, and delta-opioid receptors (Ki = .052, .23, and 2.7 nM, respectively).² Samidorphan is an antagonist at the mu-opioid receptors with partial agonist activity at kappa- and delta-opioid receptors. A major human metabolite of samidorphan (N-dealkylated) binds to the mu-, kappa-, and delta-opioid receptors (Ki = .26, 23, and 56 nM, respectively), and functions as a mu-opioid receptor agonist. The N-oxide major human metabolite binds to mu-, kappa-, and delta-opioid receptors (Ki = 8, 110, and 280 nM, respectively) and functions as a mu-opioid receptor antagonist. This profile differs from that of other opioid antagonists such as naltrexone.^15,16

OSC is not a scheduled drug subject to the Controlled Substances Act. Because samidorphan functions as an opioid antagonist, OSC is contraindicated in patients using opioids or undergoing acute opioid withdrawal.² To avoid precipitating opioid withdrawal, there should be at least a 7-day opioid-free interval from the last use of short-acting opioids, and at least a 14-day opioid-free interval from the last use of long-acting opioids, before initiating OSC. In emergency situations when an opioid is required, OSC should be discontinued. Patients who attempt to overcome opioid blockade while receiving OSC by using high or repeated doses of exogenous opioids could experience life-threatening or fatal opioid intoxication. Likewise, patients may have decreased tolerance to opioids if OSC therapy is interrupted or discontinued.

Regarding cardiac electrophysiology, OSC was not observed to prolong the electrocardiogram QTc interval to any clinically relevant extent when tested at doses up to 30 mg/30 mg (1.5 times and 3 times the maximum recommended daily dosage of olanzapine and samidorphan, respectively).¹⁷

Clinical pharmacokinetics

The pharmacokinetics of both olanzapine and samidorphan are linear over the clinical dose range and there is no pharmacokinetic interaction between olanzapine and samidorphan after oral administration of OSC.² Coadministration of OSC with lithium or valproate does not have a clinically significant effect on systemic exposure of lithium or valproate.¹³ OSC steady-state concentrations of olanzapine and samidorphan are reached within 7 days, with accumulation at steady state being 2-fold for olanzapine and 1.3-fold for samidorphan (at 5 days). Elimination half-life for olanzapine is 35 to 52 hours, and for samidorphan, 7 to 11 hours. Olanzapine is metabolized primarily via UGT1A4 and CYP1A2, whereas samidorphan is primarily metabolized by CYP3A4. Consequently, concomitant use of OSC with strong CYP3A4 inducers is not recommended. The recommendation regarding CYP1A2 modulators and OSC are similar to those for olanzapine^2,4: consider reducing the dosage of the olanzapine component in OSC when used concomitantly with strong CYP1A2 inhibitors, and consider increasing the dosage of the olanzapine component in OSC when used concomitantly with CYP1A2 inducers. Because cigarette smoke contains polycyclic aromatic hydrocarbons that act as CYP1A2 inducers,¹⁸ olanzapine clearance is much higher in smokers than in nonsmokers.² This translates to potentially clinically relevant differences when optimizing the dose. In a study of patients with schizophrenia, olanzapine concentrations were lower in self-reported smokers (16.5, 34.2, and 60.9 ng/mL) than in self-reported nonsmokers (25.6, 43.4, and 113.2 ng/mL) for dosages of 10, 20, and 40 mg/d, respectively.¹⁹ In contrast, samidorphan pharmacokinetics are not affected by smoking status.²

No dose adjustment of OSC is needed in patients with hepatic or renal impairment; however, OSC is not recommended for patients with end-stage renal disease because this has not been specifically studied.²

Continue to: Efficacy...

The efficacy of OSC in the treatment of schizophrenia in adults is supported, in part, by the extensive legacy of studies of orally administered olanzapine.² For OSC specifically, acute efficacy was primarily demonstrated in a randomized, double-blind, phase 3, 4-week study establishing superiority vs placebo in acutely exacerbated patients with schizophrenia.⁸ Mitigation of weight gain was assessed separately in a randomized, double-blind, phase 3, 24-week study comparing OSC with olanzapine in non-acute outpatients with schizophrenia.¹⁰ Both of these 2 trials were accompanied by 52-week open-label extension studies.^9,11

The 4-week study evaluated the antipsychotic efficacy of OSC in 401 patients experiencing an acute exacerbation or relapse of schizophrenia who required inpatient treatment.⁸ Patients were required to have a Positive and Negative Syndrome Scale (PANSS) total score ≥80, with a score ≥4 on at least 3 of selected positive symptoms, and a Clinical Global Impression-Severity (CGI-S) score ≥4 at baseline and screening. Patients were required to be inpatients for the first 2 weeks of the study, and were encouraged to remain as inpatients for all 4 weeks. Patients were randomized to receive OSC, olanzapine, or placebo. Dosing was once-daily and flexible based on clinical response and tolerability for the first 2 weeks of the study, and fixed thereafter. Patients assigned to OSC could receive 10 mg/10 mg or 20 mg/10 mg, and patients randomized to olanzapine could receive 10 mg or 20 mg. The study compared OSC with placebo, with olanzapine serving as an active control. Treatment with OSC resulted in significant improvements in symptoms compared with placebo at Week 4, as measured by changes in PANSS total scores from baseline. Improvement in PANSS scores with OSC relative to placebo was similar to that observed with olanzapine. The antipsychotic efficacy of OSC relative to placebo was also supported by improvements in CGI-S scores. Thus, the inclusion of samidorphan in OSC did not negatively impact the antipsychotic efficacy of olanzapine.

In the 24-week study, 561 patients were randomized to OSC or olanzapine.¹⁰ There was no placebo control. Patients were treated with doses of OSC 10 mg/10 mg or 20 mg/10 mg, or with doses of olanzapine 10 mg or 20 mg. Dosing was flexible for the first 4 weeks of the study and fixed thereafter. Eligible patients were age 18 to 55 years (younger than the 4-week study, where the maximum age was 70 years), with a body mass index of 18 to 30 kg/m² (lower than the upper limit of 40 kg/m² used in the 4-week study). In contrast to the acutely exacerbated patients in the 4-week study, patients were required to have a PANSS total score of 50 to 90, CGI-S score ≤4, and symptoms suitable for outpatient treatment. The co-primary endpoints were percent change from baseline in body weight and proportion of patients who gained ≥10% body weight at Week 24. Treatment with OSC or olanzapine resulted in similar improvements in PANSS total and CGI-S scores, but treatment with OSC was associated with statistically significantly less weight gain than treatment with olanzapine, and with a smaller proportion of patients who gained ≥10% body weight. The least squares mean percent weight change from baseline to the end of treatment was 4.2% with OSC vs 6.6% with olanzapine. Although patients treated with OSC or olanzapine had similar weight gain for the first 4 weeks of treatment, OSC weight gain stabilized after approximately the 6th week, whereas patients who received olanzapine continued to gain weight throughout the remainder of the treatment period. The risk of gaining ≥10% body weight from baseline was reduced by 50% with OSC compared with olanzapine. Moreover, the odds of gaining ≥7% body weight from baseline at Week 24 were also reduced by 50% for OSC compared with olanzapine. OSC was also associated with smaller increases in waist circumference compared with olanzapine, which was observable as early as Week 1. The risk of experiencing a 5-cm increase in waist circumference was 50% lower for patients treated with OSC vs olanzapine, a relevant threshold in assessing risk of all-cause mortality and cardiovascular disease.²⁰ However, changes in metabolic laboratory parameters in patients treated with OSC or olanzapine were generally small and were similar between groups. In addition, there were little differences between the 2 treatment groups in metabolic parameter changes considered to be of potential clinical significance, based on commonly used thresholds.

Patients on stable, chronic olanzapine therapy were not specifically studied, so the weight effect of switching from olanzapine to OSC is unknown.For bipolar I manic or mixed episodes, the use of OSC as monotherapy or in combination with lithium or valproate, as well as for maintenance monotherapy, was approved based on legacy clinical trials with olanzapine, as described in product labeling,^2,4 as well as pharmacokinetic data evidencing that OSC did not have a clinically significant effect on the pharmacokinetics of lithium or valproate.¹³ A study is in progress to evaluate the effect of OSC compared with olanzapine on body weight in young adults with schizophrenia, schizophreniform, or bipolar I disorder who are early in their illness (ClinicalTrials.gov identifier: NCT03187769).

Overall tolerability and safety

The systemic safety and tolerability profile for OSC would be expected to be similar to that for olanzapine, unless there are adverse events that are specifically related to the samidorphan component. In the 4-week acute study described above,⁸ adverse events that occurred at least twice the rate of placebo with OSC included increased weight (18.7%, 14.3%, 3.0%, for OSC, olanzapine, and placebo, respectively), somnolence (9.0%, 9.8%, 2.2%), dry mouth (7.5%, 5.3%, 0.7%), and headache (6.0%, 5.3%, 3.0%). In the 24-week study,¹⁰ which did not have a placebo control, the most commonly reported adverse events (≥10% of patients) were increased weight (24.8% vs 36.2% for OSC vs olanzapine), somnolence (21.2% vs 18.1%), dry mouth (12.8% vs 8.0%), and increased appetite (10.9% vs 12.3%). In both studies, rates of discontinuation due to adverse events were low and similar between groups (in the 4-week study, 1.5% for OSC, 2.3% for olanzapine, and 5.2% for placebo; in the 24-week study, 12.0% for OSC and 9.8% for olanzapine).

In the 2 open-label, phase 3, 52-week extension studies,^9,11 long-term tolerability was evidenced by low rates discontinuation due to adverse events (≤6%). Neither extension study reported any clinically meaningful changes over time in hematology, biochemistry, vital signs, or electrocardiogram parameters.³ In addition to durability of antipsychotic response as evidenced by sustained improvements in PANSS and CGI-S scores over time, waist circumference and weight remained stable, and the observed long-term changes in weight were consistent with weight changes observed with other second-generation antipsychotics.³ Long-term changes in metabolic laboratory parameter values were small and remained stable, and there was little change in glycosylated hemoglobin (hemoglobin A1c) values, which suggests that glycemic control was maintained with long-term OSC treatment.³ Caveats to consider are that the extension studies were open label without comparators, and they may have selected for patients who responded favorably to OSC treatment in the preceding studies.³Warnings and precautions in OSC product labeling are generally similar to those for other second-generation antipsychotics,²¹ other than warnings and precautions specifically related to samidorphan being an opioid antagonist, and special mention of “Drug Reaction with Eosinophilia and Systemic Symptoms” and “Anticholinergic (Antimuscarinic) Effects” warnings, which also are contained in the olanzapine legacy label.^2,4

Summary

Olanzapine has a plethora of evidence supporting its robust efficacy profile^5,6; however, its use is stymied by an unfavorable weight and metabolic profile.⁷ OSC may help mitigate at least some of the weight gain that would be expected with the use of olanzapine alone in the long-term treatment of patients with schizophrenia or bipolar I disorder. The addition of samidorphan does not deleteriously affect the efficacy of olanzapine, but decreases the risk of gaining ≥10% or ≥7% of baseline body weight by approximately 50% compared with olanzapine alone. Increase in waist circumference, a proxy for how much metabolically active fat one has, is lower with OSC than it is with olanzapine. Because samidorphan is an opioid receptor antagonist, OSC is contraindicated in patients using opioids and in those undergoing acute opioid withdrawal. Dosage strengths available for OSC parallel those for olanzapine, and all strengths including the same fixed dose of samidorphan—10 mg—so advise patients not to double up on the tablets, and to not split them.

Related Resource

• Olanzapine and samidorphan (Lybalvi) prescribing information. https://www.lybalvi.com/lybalvi-prescribing-information.pdf

Drug Brand Names

Diazepam • Valium

Lithium • Eskalith, Lithobid

Olanzapine • Zyprexa

Olanzapine-fluoxetine combination • Symbyax

Olanzapine-samidorphan combination • Lybalvi

Valproate • Depakote, Depakene

Bottom Line

Olanzapine-samidorphan combination (OSC) is intended to mitigate some of the weight gain anticipated when using olanzapine alone. For clinicians who have prescribed olanzapine and have seen its therapeutic benefits, OSC will be a welcome addition to the therapeutic armamentarium. For practitioners who may have avoided olanzapine entirely, OSC can provide another means of offering this therapeutic option and counter “olanzapine hesitancy.”

As a psychiatrist dedicated to working with people who are experiencing homelessness, I was very impressed with the new book edited by Col. (Ret.) Elspeth Cameron Ritchie, MD, MPH, and Maria D. Llorente, MD, about treating and providing services to this vulnerable population.

Courtesy Springer Publishing

The book, “Clinical Management of the Homeless Patient: Social, Psychiatric, and Medical Issues” (Cham, Switzerland: Springer Nature Switzerland, 2021), offers an in-depth review and analysis of the biopsychosocial complexities that affect how medical and behavioral health conditions present in those who are unhoused. Notably, the book recommends with great sensitivity best practices to address these conditions with care, understanding, and love.

This text, invaluable in particular for those of us clinicians who work with people experiencing homelessness (PEH), provides a historical context of homelessness in the United States, an evaluation of the current state, and indispensable guidance for medical and behavioral health practitioners, case managers, housing navigators, and policy makers alike. It also serves as an inspiring source for those who are considering work in the public sector while reminding those of us in the field why we continue to do this challenging and rewarding work.

Tips can provide hope to clinicians

The volume is divided into four clear sections that are easy to navigate depending on your area of expertise and interest. Each chapter consolidates an extensive literature review into an intriguing and thought-provoking analysis. Part I, “The Big Picture – Social and Medical Issues,” focuses on conditions that disproportionately affect those who are unhoused. The authors offer a glimpse into the unique challenges of managing routine health conditions. They also detail the practical knowledge that’s needed to best care for our most vulnerable neighbors; for example, promoting a shared decision-making model; simplifying treatment plans; prescribing, when possible, medications that are dosed daily – instead of multiple times per day; allowing for walk-in appointments; and addressing cultural, linguistic, and educational barriers.

Most chapters highlight informative case examples that bring the text to life. It can be heartbreaking to recognize and witness the inhumane conditions in which PEH live, and these practical tips and suggestions for future policies based on best practices can help prevent burnout and provide hope for those who care for this community.

Part II, “Psychiatric Issues and Treatments,” presents a brief yet comprehensive history on homelessness, beginning with the deep shame that PEH experienced in Colonial times as the result of cultural and religious influences. Sadly, that negative judgment continues to this day.

The authors also explain how deinstitutionalization and transinstitutionalization have shaped the current state of homelessness, including why many PEH receive their care in emergency departments while incarcerated. This section highlights the barriers of care that are created not just by the patient, but also by the clinicians and systems of care – and what’s needed practically to overcome those challenges.

I appreciate the chapter on substance use disorders. It reminds us that the most commonly used substance among PEH is tobacco, which has serious health effects and for which we have treatment; nevertheless, tobacco use is often overlooked because of the intense focus on opioid use disorder. This section also provides examples of the trauma-informed language to use when addressing difficult and sometimes stigmatizing topics, such as survival sex and trauma history.

The evidence-based discussion continues in Part III with a focus on topics that everyone working with PEH should understand, including food insecurity, the criminal justice system, and sex trafficking. Part IV highlights best practices that should be replicated in every community, including Housing First approaches, medical respite care, and multiple Veterans Administration programs.

Throughout the text, major themes reverberate across the chapters, beginning with empathy. All who work with PEH must understand the conditions and challenges PEH face every day that affect their physical and mental health. The authors offer a stark and pointed reminder that being unhoused amounts to a full-time job just to meet basic needs. In addition, the devastating role of trauma and structural racism in creating and promoting the conditions that lead someone to be unhoused cannot be underestimated.

Fortunately, the primary aim of the book is to highlight solutions, and it’s here that the book shines. While some interventions are well-known, such as the importance of working in multidisciplinary teams, building trust and rapport with our patients, and urging clinicians and institutions to examine their own judgments and biases that might interfere with humane treatment, other suggestions will lead some readers into new territory. The authors, for example, maintain that we need more data and evidence-based research that include PEH. They also make a case for more preventive care and enhanced professional education for all health care workers that centers on trauma-informed care, social determinants of health, and the unique needs of especially vulnerable communities, such as the unhoused LBGTQ+ community and policies that promote best practices, such as Housing First. The book is a stirring read. It offers both inspiration and practical guidance for all who are currently working with or interested in caring for people experiencing homelessness.

Dr. Bird is a psychiatrist with Alameda County Health Care for the Homeless and the TRUST Clinic in Oakland, Calif. She also is a cofounder of StreetHealth, a backpack street medicine team that provides psychiatric and substance use disorder treatment to people experiencing homelessness in downtown Oakland.

Dr. Bird has no disclosures.

As a psychiatrist dedicated to working with people who are experiencing homelessness, I was very impressed with the new book edited by Col. (Ret.) Elspeth Cameron Ritchie, MD, MPH, and Maria D. Llorente, MD, about treating and providing services to this vulnerable population.

Courtesy Springer Publishing

The book, “Clinical Management of the Homeless Patient: Social, Psychiatric, and Medical Issues” (Cham, Switzerland: Springer Nature Switzerland, 2021), offers an in-depth review and analysis of the biopsychosocial complexities that affect how medical and behavioral health conditions present in those who are unhoused. Notably, the book recommends with great sensitivity best practices to address these conditions with care, understanding, and love.

This text, invaluable in particular for those of us clinicians who work with people experiencing homelessness (PEH), provides a historical context of homelessness in the United States, an evaluation of the current state, and indispensable guidance for medical and behavioral health practitioners, case managers, housing navigators, and policy makers alike. It also serves as an inspiring source for those who are considering work in the public sector while reminding those of us in the field why we continue to do this challenging and rewarding work.

Tips can provide hope to clinicians

The volume is divided into four clear sections that are easy to navigate depending on your area of expertise and interest. Each chapter consolidates an extensive literature review into an intriguing and thought-provoking analysis. Part I, “The Big Picture – Social and Medical Issues,” focuses on conditions that disproportionately affect those who are unhoused. The authors offer a glimpse into the unique challenges of managing routine health conditions. They also detail the practical knowledge that’s needed to best care for our most vulnerable neighbors; for example, promoting a shared decision-making model; simplifying treatment plans; prescribing, when possible, medications that are dosed daily – instead of multiple times per day; allowing for walk-in appointments; and addressing cultural, linguistic, and educational barriers.

Most chapters highlight informative case examples that bring the text to life. It can be heartbreaking to recognize and witness the inhumane conditions in which PEH live, and these practical tips and suggestions for future policies based on best practices can help prevent burnout and provide hope for those who care for this community.

Part II, “Psychiatric Issues and Treatments,” presents a brief yet comprehensive history on homelessness, beginning with the deep shame that PEH experienced in Colonial times as the result of cultural and religious influences. Sadly, that negative judgment continues to this day.

The authors also explain how deinstitutionalization and transinstitutionalization have shaped the current state of homelessness, including why many PEH receive their care in emergency departments while incarcerated. This section highlights the barriers of care that are created not just by the patient, but also by the clinicians and systems of care – and what’s needed practically to overcome those challenges.

I appreciate the chapter on substance use disorders. It reminds us that the most commonly used substance among PEH is tobacco, which has serious health effects and for which we have treatment; nevertheless, tobacco use is often overlooked because of the intense focus on opioid use disorder. This section also provides examples of the trauma-informed language to use when addressing difficult and sometimes stigmatizing topics, such as survival sex and trauma history.

The evidence-based discussion continues in Part III with a focus on topics that everyone working with PEH should understand, including food insecurity, the criminal justice system, and sex trafficking. Part IV highlights best practices that should be replicated in every community, including Housing First approaches, medical respite care, and multiple Veterans Administration programs.

Throughout the text, major themes reverberate across the chapters, beginning with empathy. All who work with PEH must understand the conditions and challenges PEH face every day that affect their physical and mental health. The authors offer a stark and pointed reminder that being unhoused amounts to a full-time job just to meet basic needs. In addition, the devastating role of trauma and structural racism in creating and promoting the conditions that lead someone to be unhoused cannot be underestimated.

Fortunately, the primary aim of the book is to highlight solutions, and it’s here that the book shines. While some interventions are well-known, such as the importance of working in multidisciplinary teams, building trust and rapport with our patients, and urging clinicians and institutions to examine their own judgments and biases that might interfere with humane treatment, other suggestions will lead some readers into new territory. The authors, for example, maintain that we need more data and evidence-based research that include PEH. They also make a case for more preventive care and enhanced professional education for all health care workers that centers on trauma-informed care, social determinants of health, and the unique needs of especially vulnerable communities, such as the unhoused LBGTQ+ community and policies that promote best practices, such as Housing First. The book is a stirring read. It offers both inspiration and practical guidance for all who are currently working with or interested in caring for people experiencing homelessness.

Dr. Bird is a psychiatrist with Alameda County Health Care for the Homeless and the TRUST Clinic in Oakland, Calif. She also is a cofounder of StreetHealth, a backpack street medicine team that provides psychiatric and substance use disorder treatment to people experiencing homelessness in downtown Oakland.

Dr. Bird has no disclosures.

As a psychiatrist dedicated to working with people who are experiencing homelessness, I was very impressed with the new book edited by Col. (Ret.) Elspeth Cameron Ritchie, MD, MPH, and Maria D. Llorente, MD, about treating and providing services to this vulnerable population.

Courtesy Springer Publishing

The book, “Clinical Management of the Homeless Patient: Social, Psychiatric, and Medical Issues” (Cham, Switzerland: Springer Nature Switzerland, 2021), offers an in-depth review and analysis of the biopsychosocial complexities that affect how medical and behavioral health conditions present in those who are unhoused. Notably, the book recommends with great sensitivity best practices to address these conditions with care, understanding, and love.

This text, invaluable in particular for those of us clinicians who work with people experiencing homelessness (PEH), provides a historical context of homelessness in the United States, an evaluation of the current state, and indispensable guidance for medical and behavioral health practitioners, case managers, housing navigators, and policy makers alike. It also serves as an inspiring source for those who are considering work in the public sector while reminding those of us in the field why we continue to do this challenging and rewarding work.

Tips can provide hope to clinicians

The volume is divided into four clear sections that are easy to navigate depending on your area of expertise and interest. Each chapter consolidates an extensive literature review into an intriguing and thought-provoking analysis. Part I, “The Big Picture – Social and Medical Issues,” focuses on conditions that disproportionately affect those who are unhoused. The authors offer a glimpse into the unique challenges of managing routine health conditions. They also detail the practical knowledge that’s needed to best care for our most vulnerable neighbors; for example, promoting a shared decision-making model; simplifying treatment plans; prescribing, when possible, medications that are dosed daily – instead of multiple times per day; allowing for walk-in appointments; and addressing cultural, linguistic, and educational barriers.

Most chapters highlight informative case examples that bring the text to life. It can be heartbreaking to recognize and witness the inhumane conditions in which PEH live, and these practical tips and suggestions for future policies based on best practices can help prevent burnout and provide hope for those who care for this community.

Part II, “Psychiatric Issues and Treatments,” presents a brief yet comprehensive history on homelessness, beginning with the deep shame that PEH experienced in Colonial times as the result of cultural and religious influences. Sadly, that negative judgment continues to this day.

The authors also explain how deinstitutionalization and transinstitutionalization have shaped the current state of homelessness, including why many PEH receive their care in emergency departments while incarcerated. This section highlights the barriers of care that are created not just by the patient, but also by the clinicians and systems of care – and what’s needed practically to overcome those challenges.

I appreciate the chapter on substance use disorders. It reminds us that the most commonly used substance among PEH is tobacco, which has serious health effects and for which we have treatment; nevertheless, tobacco use is often overlooked because of the intense focus on opioid use disorder. This section also provides examples of the trauma-informed language to use when addressing difficult and sometimes stigmatizing topics, such as survival sex and trauma history.

The evidence-based discussion continues in Part III with a focus on topics that everyone working with PEH should understand, including food insecurity, the criminal justice system, and sex trafficking. Part IV highlights best practices that should be replicated in every community, including Housing First approaches, medical respite care, and multiple Veterans Administration programs.

Throughout the text, major themes reverberate across the chapters, beginning with empathy. All who work with PEH must understand the conditions and challenges PEH face every day that affect their physical and mental health. The authors offer a stark and pointed reminder that being unhoused amounts to a full-time job just to meet basic needs. In addition, the devastating role of trauma and structural racism in creating and promoting the conditions that lead someone to be unhoused cannot be underestimated.

Fortunately, the primary aim of the book is to highlight solutions, and it’s here that the book shines. While some interventions are well-known, such as the importance of working in multidisciplinary teams, building trust and rapport with our patients, and urging clinicians and institutions to examine their own judgments and biases that might interfere with humane treatment, other suggestions will lead some readers into new territory. The authors, for example, maintain that we need more data and evidence-based research that include PEH. They also make a case for more preventive care and enhanced professional education for all health care workers that centers on trauma-informed care, social determinants of health, and the unique needs of especially vulnerable communities, such as the unhoused LBGTQ+ community and policies that promote best practices, such as Housing First. The book is a stirring read. It offers both inspiration and practical guidance for all who are currently working with or interested in caring for people experiencing homelessness.

Dr. Bird is a psychiatrist with Alameda County Health Care for the Homeless and the TRUST Clinic in Oakland, Calif. She also is a cofounder of StreetHealth, a backpack street medicine team that provides psychiatric and substance use disorder treatment to people experiencing homelessness in downtown Oakland.

Dr. Bird has no disclosures.

Anosognosia is the lack of awareness of a disabling physical or mental illness. The term was coined by Joseph Babinski in 1914 following his observations that patients with left-side paralysis due to right hemisphere stroke do not recognize their hemiplegia and strongly deny that there is anything physically wrong with their body, or that they need treatment or rehabilitation.

Psychiatrists have long observed anosognosia in patients with acute psychoses such as schizophrenia or mania who vehemently deny that there is anything wrong with them, despite experiencing hallucinations, delusions, and/or bizarre behavior. They adamantly refuse medical care and often have to be involuntarily hospitalized to receive urgently needed medications they don’t believe they need.

So is anosognosia in schizophrenia a fixed false belief (delusion), a negative symptom, or a cognitive deficit? Arguments can be made for any of those 3 options, but the evidence suggests that anosognosia is a disorder of consciousness, a “meta-cognitive” deficit, or, as I referred to it in a previous publication, the loss of self-proprioception.¹

Anosognosia in neurologic brain disorders

Although right hemispheric stroke is the most common disease state associated with anosognosia,² other neurologic disorders can be associated with anosognosia, including Anton’s syndrome of cortical blindness,³ traumatic brain injury,⁴ Wernicke’s aphasia,⁵ mild cognitive impairment,⁶ and Alzheimer’s disease.⁷ In addition to anosognosia, those disorders can be accompanied by indifference to the deficit, which is referred to as “anosodiaphoria.”

The neuroanatomy of anosognosia generally implicates right hemisphere deficits, especially the frontal cortex, the right parietal lobe, the temporoparietal cortex, and the thalamus. It can be conceptualized as a disturbance of “body schema” because all motor and sensory functions of the body have a “representation” in brain structure.

Anosognosia in psychiatric brain disorders

Although schizophrenia is most frequently associated with anosognosia, other psychiatric disorders also exhibit this absence of insight. They include delusional disorder,⁸ bipolar disorder,⁹ intellectual disability,¹⁰ and personality disorders.¹¹ In all those psychiatric disorders, there is a lack of self-reflection (metacognition). At the neuroanatomical level, most studies have focused on schizophrenia, and abnormalities have been described in the frontal and parietal regions. Significant pathology in the inferior parietal lobe has been identified in schizophrenia.¹² However, the right insula, which is connected to multiple neural circuits,¹³ appears to be intimately associated with anosognosia when impaired. The insula also regulates interoception and a “sense of self.”¹⁴ The loss of cortical gray matter in schizophrenia is most pronounced in the insula bilaterally. Another neurologic mechanism associated with anosognosia in schizophrenia is the default mode network (DMN). The DMN, which usually is overactive at rest and is deactivated during a focused activity, is involved in both insight and social cognition.¹⁵

Measurement of anosognosia

Several rating scales are used to measure the severity of anosognosia and the loss of insight. They include:

• The Insight and Treatment Attitude Questionnaire¹⁶
• The Scale to Assess Unawareness of Mental Disorder¹⁷
• The Beck Cognitive Insight Scale,¹⁸ the only self-administered scale that measures a patient’s ability to evaluate their psychiatric beliefs and possibly modify them
• The Positive and Negative Syndrome Scale,¹⁹ which is the gold standard for measuring the overall severity of schizophrenia, has only 1 item related to insight within the 16-item General Subscale (G12: Lack of judgement and insight).

Continue to: Consequences of anosognosia...

Consequences of anosognosia

Patients with anosognosia neglect themselves both mentally and physically and fail to seek or accept medical attention. Thus, schizophrenia is associated with many serious and damaging consequences due to the lack of self-monitoring or appraising their health needs. The Table summarizes the multiple consequences of anosognosia.

Is anosognosia treatable or irreversible?

Schizophrenia is well established to be a heterogeneous syndrome with hundreds of biotypes that share a similar phenotype of positive, negative, cognitive, mood, and neuromotor symptoms of variable severities.²⁰ This includes anosognosia, which has been reported in 57% to 98% of patients in various studies.^21,22

So what happens to anosognosia with antipsychotic therapy? In the first study that used a long-acting injectable (LAI) second-generation antipsychotic (SGA) in first-episode psychosis to ensure full adherence, Emsley et al²³ reported a 64% remission rate after 2 years of treatment, and observed that many patients regained their insight after several months of uninterrupted antipsychotic pharmacotherapy. This suggests that avoiding psychotic relapse with uninterrupted antipsychotic therapy with LAIs may help restore insight. I have personally witnessed reversal of anosognosia in patients with first-episode schizophrenia whom I treated with LAI SGAs continuously for several years; these patients not only regained insight into their illness but were able to return to college or to work.

There is also evidence that stroke patients with left-side hemiplegia, or patients with cortical blindness (due to calcarine cortex damage secondary to posterior cerebral artery infarct), who paradoxically deny being blind due to anosognosia, do regain their insight after several months. Cognitive-behavioral therapy (CBT) and adherence therapy, as well as psychoeducation, can help in reversing anosognosia. Bilateral electroconvulsive therapy has been reported to improve insight in schizophrenia. Transcranial magnetic stimulation over the posterior parietal cortex has been reported to restore insight in patients with visuospatial neglect due to a stroke. However, more research targeting anosognosia along with psychotic symptoms is needed. It should be noted that patients with bipolar disorder who have anosognosia during the manic phase of their illness do have insight when they switch to a depressed phase,⁹ which suggests that anosognosia is reversible in bipolar disorder and is phase-dependent (ie, a state, not a trait, variable).
 

A symptom of impaired consciousness

A large body of evidence links lesions in the right hemisphere to delusion and to anosognosia.²⁴ Gazzaniga and Miller²⁵ published a book chapter with the provocative title “the left hemisphere does not miss the right hemisphere.” Such right-hemisphere lesions can lead to a disruption of consciousness, leading to anosognosia. Schizophrenia is a pervasive brain syndrome involving multiple brain regions and a wide range of clinical symptoms ranging across psychotic as well as negative and cognitive domains. Anosognosia can be conceptualized as a psychotic symptom (delusion), a negative symptom (self-monitoring deficit), or a cognitive failure. However, anosognosia in schizophrenia can be best understood as a symptom of impaired consciousness and self-pathology,²⁶ where the brain fails to process and recognize one’s mental function, which culminates in faulty reality testing.

Schizophrenia is a neurologic syndrome associated with numerous psychiatric manifestations, and anosognosia is one of its fundamental initial symptoms.

Anosognosia is the lack of awareness of a disabling physical or mental illness. The term was coined by Joseph Babinski in 1914 following his observations that patients with left-side paralysis due to right hemisphere stroke do not recognize their hemiplegia and strongly deny that there is anything physically wrong with their body, or that they need treatment or rehabilitation.

Psychiatrists have long observed anosognosia in patients with acute psychoses such as schizophrenia or mania who vehemently deny that there is anything wrong with them, despite experiencing hallucinations, delusions, and/or bizarre behavior. They adamantly refuse medical care and often have to be involuntarily hospitalized to receive urgently needed medications they don’t believe they need.

So is anosognosia in schizophrenia a fixed false belief (delusion), a negative symptom, or a cognitive deficit? Arguments can be made for any of those 3 options, but the evidence suggests that anosognosia is a disorder of consciousness, a “meta-cognitive” deficit, or, as I referred to it in a previous publication, the loss of self-proprioception.¹

Anosognosia in neurologic brain disorders

Although right hemispheric stroke is the most common disease state associated with anosognosia,² other neurologic disorders can be associated with anosognosia, including Anton’s syndrome of cortical blindness,³ traumatic brain injury,⁴ Wernicke’s aphasia,⁵ mild cognitive impairment,⁶ and Alzheimer’s disease.⁷ In addition to anosognosia, those disorders can be accompanied by indifference to the deficit, which is referred to as “anosodiaphoria.”

The neuroanatomy of anosognosia generally implicates right hemisphere deficits, especially the frontal cortex, the right parietal lobe, the temporoparietal cortex, and the thalamus. It can be conceptualized as a disturbance of “body schema” because all motor and sensory functions of the body have a “representation” in brain structure.

Anosognosia in psychiatric brain disorders

Although schizophrenia is most frequently associated with anosognosia, other psychiatric disorders also exhibit this absence of insight. They include delusional disorder,⁸ bipolar disorder,⁹ intellectual disability,¹⁰ and personality disorders.¹¹ In all those psychiatric disorders, there is a lack of self-reflection (metacognition). At the neuroanatomical level, most studies have focused on schizophrenia, and abnormalities have been described in the frontal and parietal regions. Significant pathology in the inferior parietal lobe has been identified in schizophrenia.¹² However, the right insula, which is connected to multiple neural circuits,¹³ appears to be intimately associated with anosognosia when impaired. The insula also regulates interoception and a “sense of self.”¹⁴ The loss of cortical gray matter in schizophrenia is most pronounced in the insula bilaterally. Another neurologic mechanism associated with anosognosia in schizophrenia is the default mode network (DMN). The DMN, which usually is overactive at rest and is deactivated during a focused activity, is involved in both insight and social cognition.¹⁵

Measurement of anosognosia

Several rating scales are used to measure the severity of anosognosia and the loss of insight. They include:

• The Insight and Treatment Attitude Questionnaire¹⁶
• The Scale to Assess Unawareness of Mental Disorder¹⁷
• The Beck Cognitive Insight Scale,¹⁸ the only self-administered scale that measures a patient’s ability to evaluate their psychiatric beliefs and possibly modify them
• The Positive and Negative Syndrome Scale,¹⁹ which is the gold standard for measuring the overall severity of schizophrenia, has only 1 item related to insight within the 16-item General Subscale (G12: Lack of judgement and insight).

Continue to: Consequences of anosognosia...

Consequences of anosognosia

Patients with anosognosia neglect themselves both mentally and physically and fail to seek or accept medical attention. Thus, schizophrenia is associated with many serious and damaging consequences due to the lack of self-monitoring or appraising their health needs. The Table summarizes the multiple consequences of anosognosia.

Is anosognosia treatable or irreversible?

Schizophrenia is well established to be a heterogeneous syndrome with hundreds of biotypes that share a similar phenotype of positive, negative, cognitive, mood, and neuromotor symptoms of variable severities.²⁰ This includes anosognosia, which has been reported in 57% to 98% of patients in various studies.^21,22

So what happens to anosognosia with antipsychotic therapy? In the first study that used a long-acting injectable (LAI) second-generation antipsychotic (SGA) in first-episode psychosis to ensure full adherence, Emsley et al²³ reported a 64% remission rate after 2 years of treatment, and observed that many patients regained their insight after several months of uninterrupted antipsychotic pharmacotherapy. This suggests that avoiding psychotic relapse with uninterrupted antipsychotic therapy with LAIs may help restore insight. I have personally witnessed reversal of anosognosia in patients with first-episode schizophrenia whom I treated with LAI SGAs continuously for several years; these patients not only regained insight into their illness but were able to return to college or to work.

There is also evidence that stroke patients with left-side hemiplegia, or patients with cortical blindness (due to calcarine cortex damage secondary to posterior cerebral artery infarct), who paradoxically deny being blind due to anosognosia, do regain their insight after several months. Cognitive-behavioral therapy (CBT) and adherence therapy, as well as psychoeducation, can help in reversing anosognosia. Bilateral electroconvulsive therapy has been reported to improve insight in schizophrenia. Transcranial magnetic stimulation over the posterior parietal cortex has been reported to restore insight in patients with visuospatial neglect due to a stroke. However, more research targeting anosognosia along with psychotic symptoms is needed. It should be noted that patients with bipolar disorder who have anosognosia during the manic phase of their illness do have insight when they switch to a depressed phase,⁹ which suggests that anosognosia is reversible in bipolar disorder and is phase-dependent (ie, a state, not a trait, variable).
 

A symptom of impaired consciousness

A large body of evidence links lesions in the right hemisphere to delusion and to anosognosia.²⁴ Gazzaniga and Miller²⁵ published a book chapter with the provocative title “the left hemisphere does not miss the right hemisphere.” Such right-hemisphere lesions can lead to a disruption of consciousness, leading to anosognosia. Schizophrenia is a pervasive brain syndrome involving multiple brain regions and a wide range of clinical symptoms ranging across psychotic as well as negative and cognitive domains. Anosognosia can be conceptualized as a psychotic symptom (delusion), a negative symptom (self-monitoring deficit), or a cognitive failure. However, anosognosia in schizophrenia can be best understood as a symptom of impaired consciousness and self-pathology,²⁶ where the brain fails to process and recognize one’s mental function, which culminates in faulty reality testing.

Schizophrenia is a neurologic syndrome associated with numerous psychiatric manifestations, and anosognosia is one of its fundamental initial symptoms.

Anosognosia is the lack of awareness of a disabling physical or mental illness. The term was coined by Joseph Babinski in 1914 following his observations that patients with left-side paralysis due to right hemisphere stroke do not recognize their hemiplegia and strongly deny that there is anything physically wrong with their body, or that they need treatment or rehabilitation.

Psychiatrists have long observed anosognosia in patients with acute psychoses such as schizophrenia or mania who vehemently deny that there is anything wrong with them, despite experiencing hallucinations, delusions, and/or bizarre behavior. They adamantly refuse medical care and often have to be involuntarily hospitalized to receive urgently needed medications they don’t believe they need.

So is anosognosia in schizophrenia a fixed false belief (delusion), a negative symptom, or a cognitive deficit? Arguments can be made for any of those 3 options, but the evidence suggests that anosognosia is a disorder of consciousness, a “meta-cognitive” deficit, or, as I referred to it in a previous publication, the loss of self-proprioception.¹

Anosognosia in neurologic brain disorders

Although right hemispheric stroke is the most common disease state associated with anosognosia,² other neurologic disorders can be associated with anosognosia, including Anton’s syndrome of cortical blindness,³ traumatic brain injury,⁴ Wernicke’s aphasia,⁵ mild cognitive impairment,⁶ and Alzheimer’s disease.⁷ In addition to anosognosia, those disorders can be accompanied by indifference to the deficit, which is referred to as “anosodiaphoria.”

The neuroanatomy of anosognosia generally implicates right hemisphere deficits, especially the frontal cortex, the right parietal lobe, the temporoparietal cortex, and the thalamus. It can be conceptualized as a disturbance of “body schema” because all motor and sensory functions of the body have a “representation” in brain structure.

Anosognosia in psychiatric brain disorders

Although schizophrenia is most frequently associated with anosognosia, other psychiatric disorders also exhibit this absence of insight. They include delusional disorder,⁸ bipolar disorder,⁹ intellectual disability,¹⁰ and personality disorders.¹¹ In all those psychiatric disorders, there is a lack of self-reflection (metacognition). At the neuroanatomical level, most studies have focused on schizophrenia, and abnormalities have been described in the frontal and parietal regions. Significant pathology in the inferior parietal lobe has been identified in schizophrenia.¹² However, the right insula, which is connected to multiple neural circuits,¹³ appears to be intimately associated with anosognosia when impaired. The insula also regulates interoception and a “sense of self.”¹⁴ The loss of cortical gray matter in schizophrenia is most pronounced in the insula bilaterally. Another neurologic mechanism associated with anosognosia in schizophrenia is the default mode network (DMN). The DMN, which usually is overactive at rest and is deactivated during a focused activity, is involved in both insight and social cognition.¹⁵

Measurement of anosognosia

Several rating scales are used to measure the severity of anosognosia and the loss of insight. They include:

• The Insight and Treatment Attitude Questionnaire¹⁶
• The Scale to Assess Unawareness of Mental Disorder¹⁷
• The Beck Cognitive Insight Scale,¹⁸ the only self-administered scale that measures a patient’s ability to evaluate their psychiatric beliefs and possibly modify them
• The Positive and Negative Syndrome Scale,¹⁹ which is the gold standard for measuring the overall severity of schizophrenia, has only 1 item related to insight within the 16-item General Subscale (G12: Lack of judgement and insight).

Continue to: Consequences of anosognosia...

Consequences of anosognosia

Patients with anosognosia neglect themselves both mentally and physically and fail to seek or accept medical attention. Thus, schizophrenia is associated with many serious and damaging consequences due to the lack of self-monitoring or appraising their health needs. The Table summarizes the multiple consequences of anosognosia.

Is anosognosia treatable or irreversible?

Schizophrenia is well established to be a heterogeneous syndrome with hundreds of biotypes that share a similar phenotype of positive, negative, cognitive, mood, and neuromotor symptoms of variable severities.²⁰ This includes anosognosia, which has been reported in 57% to 98% of patients in various studies.^21,22

So what happens to anosognosia with antipsychotic therapy? In the first study that used a long-acting injectable (LAI) second-generation antipsychotic (SGA) in first-episode psychosis to ensure full adherence, Emsley et al²³ reported a 64% remission rate after 2 years of treatment, and observed that many patients regained their insight after several months of uninterrupted antipsychotic pharmacotherapy. This suggests that avoiding psychotic relapse with uninterrupted antipsychotic therapy with LAIs may help restore insight. I have personally witnessed reversal of anosognosia in patients with first-episode schizophrenia whom I treated with LAI SGAs continuously for several years; these patients not only regained insight into their illness but were able to return to college or to work.

There is also evidence that stroke patients with left-side hemiplegia, or patients with cortical blindness (due to calcarine cortex damage secondary to posterior cerebral artery infarct), who paradoxically deny being blind due to anosognosia, do regain their insight after several months. Cognitive-behavioral therapy (CBT) and adherence therapy, as well as psychoeducation, can help in reversing anosognosia. Bilateral electroconvulsive therapy has been reported to improve insight in schizophrenia. Transcranial magnetic stimulation over the posterior parietal cortex has been reported to restore insight in patients with visuospatial neglect due to a stroke. However, more research targeting anosognosia along with psychotic symptoms is needed. It should be noted that patients with bipolar disorder who have anosognosia during the manic phase of their illness do have insight when they switch to a depressed phase,⁹ which suggests that anosognosia is reversible in bipolar disorder and is phase-dependent (ie, a state, not a trait, variable).
 

A symptom of impaired consciousness

A large body of evidence links lesions in the right hemisphere to delusion and to anosognosia.²⁴ Gazzaniga and Miller²⁵ published a book chapter with the provocative title “the left hemisphere does not miss the right hemisphere.” Such right-hemisphere lesions can lead to a disruption of consciousness, leading to anosognosia. Schizophrenia is a pervasive brain syndrome involving multiple brain regions and a wide range of clinical symptoms ranging across psychotic as well as negative and cognitive domains. Anosognosia can be conceptualized as a psychotic symptom (delusion), a negative symptom (self-monitoring deficit), or a cognitive failure. However, anosognosia in schizophrenia can be best understood as a symptom of impaired consciousness and self-pathology,²⁶ where the brain fails to process and recognize one’s mental function, which culminates in faulty reality testing.

Schizophrenia is a neurologic syndrome associated with numerous psychiatric manifestations, and anosognosia is one of its fundamental initial symptoms.

New research provides more evidence that antipsychotics that raise prolactin levels are tied to a significantly increased risk for breast cancer.

The relative risk for breast cancer was 62% higher in women who took category 1 antipsychotic medications associated with high prolactin levels. These include haloperidol (Haldol), paliperidone (Invega), and risperidone (Risperdal). Additionally, the risk was 54% higher in those taking category 2 antipsychotics that have mid-range effects on prolactin. These include iloperidone (Fanapt), lurasidone (Latuda), and olanzapine (Zyprexa).

In contrast, category 3 antipsychotics which have a lesser effect on prolactin levels were not associated with any increase in breast cancer risk. These drugs include aripiprazole (Abilify), asenapine (Saphris), brexpiprazole (Rexulti), cariprazine (Vraylar), clozapine (multiple brands), quetiapine (Seroquel), and ziprasidone (Geodon).

While the “absolute” breast cancer risk for these drugs is unclear, “we can make the case that high circulating prolactin levels are associated with breast cancer risk. This follows what is already known about prolactin from prior studies, notably the nurses’ health studies,” Tahir Rahman, MD, associate professor of psychiatry, Washington University School of Medicine, St. Louis, told this news organization.

“We don’t want to alarm patients taking antipsychotic drugs for life-threatening mental health problems, but we also think it is time for doctors to track prolactin levels and vigilantly monitor their patients who are being treated with antipsychotics,” Dr. Rahman added in a news release.

The study was published online Dec. 3 in the Journal of Clinical Psychopharmacology.
 

Test prolactin levels

Using administrative claims data, the researchers evaluated breast cancer risk in women aged 18-64 exposed to antipsychotic medications compared with anticonvulsants and/or lithium. 

They identified 914 cases of invasive breast cancer among 540,737 women.

Roughly 52% of the study population filled at least one prescription for a category 3 antipsychotic agent, whereas 15% filled at least one prescription for a category 1 agent; 49% of women filled at least one prescription for an anticonvulsant medication during the study period.

Exposure to all antipsychotics was independently associated with a 35% increased risk for breast cancer (adjusted hazard ratio, 1.35; 95% CI, 1.14-1.61), the study team found.

Compared with anticonvulsants or lithium, the risk for breast cancer was significantly increased for high prolactin (category 1) antipsychotics (adjusted hazard ratio, 1.62; 95% CI, 1.30-2.03) and for mid-prolactin (category 2) drugs (aHR 1.54; 95% CI, 1.19-1.99), with no increased risk for category 3 antipsychotics.

“Our research is obviously of interest for preventing breast cancer in antipsychotic-treated patients. Checking a blood prolactin level is cheap and easy [and a high level is] fairly simple to mitigate,” said Dr. Rahman.
 

A matter of debate

Reached for comment, Christoph Correll, MD, professor of psychiatry and molecular medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, said, “The potential elevation of breast cancer risk depending on the dose and time of treatment with antipsychotic medications with varying degrees of prolactin-raising properties has been a topic of research and matter of debate.”

This new study “adds another data point indicating that antipsychotics that are associated on average with a higher prolactin-raising effect than other antipsychotics may increase the risk of breast cancer in women to some degree,” said Dr. Correll, who was not involved with the study.

However, he cautioned that “naturalistic data are always vulnerable to residual confounding, for example, unmeasured effects that could also at least partially explain the results, and the follow-up time of only 4 years (maximum 6 years) in this study was relatively short.

“Nevertheless, given availability of many different antipsychotics with varying degrees of prolactin-raising potential, in women requiring antipsychotic treatment, less prolactin-raising antipsychotics may be preferable,” Dr. Correll said.

“In women receiving prolactin-raising antipsychotics for medium- and longer-term maintenance therapy, prolactin levels should be monitored,” he added.

When an elevated prolactin level is detected, this should be addressed “either via dose reduction, a switch to an alternative antipsychotic that does not raise prolactin levels significantly, or the addition of a partial or full D2 agonist when the prolactin-raising antipsychotic should be continued based on individualized risk assessment,” Dr. Correll advised.

This work was supported by an award from the Alvin J. Siteman Cancer Center; the National Cancer Institute and the National Center for Advancing Translational Sciences of the National Institutes of Health; the Taylor Family Institute for Innovative Psychiatric Research; and the Center for Brain Research in Mood Disorders. The authors have disclosed no relevant financial relationships. Dr. Correll has received royalties from UpToDate and is a stock option holder of LB Pharma.

A version of this article first appeared on Medscape.com.

New research provides more evidence that antipsychotics that raise prolactin levels are tied to a significantly increased risk for breast cancer.

The relative risk for breast cancer was 62% higher in women who took category 1 antipsychotic medications associated with high prolactin levels. These include haloperidol (Haldol), paliperidone (Invega), and risperidone (Risperdal). Additionally, the risk was 54% higher in those taking category 2 antipsychotics that have mid-range effects on prolactin. These include iloperidone (Fanapt), lurasidone (Latuda), and olanzapine (Zyprexa).

In contrast, category 3 antipsychotics which have a lesser effect on prolactin levels were not associated with any increase in breast cancer risk. These drugs include aripiprazole (Abilify), asenapine (Saphris), brexpiprazole (Rexulti), cariprazine (Vraylar), clozapine (multiple brands), quetiapine (Seroquel), and ziprasidone (Geodon).

While the “absolute” breast cancer risk for these drugs is unclear, “we can make the case that high circulating prolactin levels are associated with breast cancer risk. This follows what is already known about prolactin from prior studies, notably the nurses’ health studies,” Tahir Rahman, MD, associate professor of psychiatry, Washington University School of Medicine, St. Louis, told this news organization.

“We don’t want to alarm patients taking antipsychotic drugs for life-threatening mental health problems, but we also think it is time for doctors to track prolactin levels and vigilantly monitor their patients who are being treated with antipsychotics,” Dr. Rahman added in a news release.

The study was published online Dec. 3 in the Journal of Clinical Psychopharmacology.
 

Test prolactin levels

Using administrative claims data, the researchers evaluated breast cancer risk in women aged 18-64 exposed to antipsychotic medications compared with anticonvulsants and/or lithium. 

They identified 914 cases of invasive breast cancer among 540,737 women.

Roughly 52% of the study population filled at least one prescription for a category 3 antipsychotic agent, whereas 15% filled at least one prescription for a category 1 agent; 49% of women filled at least one prescription for an anticonvulsant medication during the study period.

Exposure to all antipsychotics was independently associated with a 35% increased risk for breast cancer (adjusted hazard ratio, 1.35; 95% CI, 1.14-1.61), the study team found.

Compared with anticonvulsants or lithium, the risk for breast cancer was significantly increased for high prolactin (category 1) antipsychotics (adjusted hazard ratio, 1.62; 95% CI, 1.30-2.03) and for mid-prolactin (category 2) drugs (aHR 1.54; 95% CI, 1.19-1.99), with no increased risk for category 3 antipsychotics.

“Our research is obviously of interest for preventing breast cancer in antipsychotic-treated patients. Checking a blood prolactin level is cheap and easy [and a high level is] fairly simple to mitigate,” said Dr. Rahman.
 

A matter of debate

Reached for comment, Christoph Correll, MD, professor of psychiatry and molecular medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, said, “The potential elevation of breast cancer risk depending on the dose and time of treatment with antipsychotic medications with varying degrees of prolactin-raising properties has been a topic of research and matter of debate.”

This new study “adds another data point indicating that antipsychotics that are associated on average with a higher prolactin-raising effect than other antipsychotics may increase the risk of breast cancer in women to some degree,” said Dr. Correll, who was not involved with the study.

However, he cautioned that “naturalistic data are always vulnerable to residual confounding, for example, unmeasured effects that could also at least partially explain the results, and the follow-up time of only 4 years (maximum 6 years) in this study was relatively short.

“Nevertheless, given availability of many different antipsychotics with varying degrees of prolactin-raising potential, in women requiring antipsychotic treatment, less prolactin-raising antipsychotics may be preferable,” Dr. Correll said.

“In women receiving prolactin-raising antipsychotics for medium- and longer-term maintenance therapy, prolactin levels should be monitored,” he added.

When an elevated prolactin level is detected, this should be addressed “either via dose reduction, a switch to an alternative antipsychotic that does not raise prolactin levels significantly, or the addition of a partial or full D2 agonist when the prolactin-raising antipsychotic should be continued based on individualized risk assessment,” Dr. Correll advised.

This work was supported by an award from the Alvin J. Siteman Cancer Center; the National Cancer Institute and the National Center for Advancing Translational Sciences of the National Institutes of Health; the Taylor Family Institute for Innovative Psychiatric Research; and the Center for Brain Research in Mood Disorders. The authors have disclosed no relevant financial relationships. Dr. Correll has received royalties from UpToDate and is a stock option holder of LB Pharma.

A version of this article first appeared on Medscape.com.

New research provides more evidence that antipsychotics that raise prolactin levels are tied to a significantly increased risk for breast cancer.

The relative risk for breast cancer was 62% higher in women who took category 1 antipsychotic medications associated with high prolactin levels. These include haloperidol (Haldol), paliperidone (Invega), and risperidone (Risperdal). Additionally, the risk was 54% higher in those taking category 2 antipsychotics that have mid-range effects on prolactin. These include iloperidone (Fanapt), lurasidone (Latuda), and olanzapine (Zyprexa).

In contrast, category 3 antipsychotics which have a lesser effect on prolactin levels were not associated with any increase in breast cancer risk. These drugs include aripiprazole (Abilify), asenapine (Saphris), brexpiprazole (Rexulti), cariprazine (Vraylar), clozapine (multiple brands), quetiapine (Seroquel), and ziprasidone (Geodon).

While the “absolute” breast cancer risk for these drugs is unclear, “we can make the case that high circulating prolactin levels are associated with breast cancer risk. This follows what is already known about prolactin from prior studies, notably the nurses’ health studies,” Tahir Rahman, MD, associate professor of psychiatry, Washington University School of Medicine, St. Louis, told this news organization.

“We don’t want to alarm patients taking antipsychotic drugs for life-threatening mental health problems, but we also think it is time for doctors to track prolactin levels and vigilantly monitor their patients who are being treated with antipsychotics,” Dr. Rahman added in a news release.

The study was published online Dec. 3 in the Journal of Clinical Psychopharmacology.
 

Test prolactin levels

Using administrative claims data, the researchers evaluated breast cancer risk in women aged 18-64 exposed to antipsychotic medications compared with anticonvulsants and/or lithium. 

They identified 914 cases of invasive breast cancer among 540,737 women.

Roughly 52% of the study population filled at least one prescription for a category 3 antipsychotic agent, whereas 15% filled at least one prescription for a category 1 agent; 49% of women filled at least one prescription for an anticonvulsant medication during the study period.

Exposure to all antipsychotics was independently associated with a 35% increased risk for breast cancer (adjusted hazard ratio, 1.35; 95% CI, 1.14-1.61), the study team found.

Compared with anticonvulsants or lithium, the risk for breast cancer was significantly increased for high prolactin (category 1) antipsychotics (adjusted hazard ratio, 1.62; 95% CI, 1.30-2.03) and for mid-prolactin (category 2) drugs (aHR 1.54; 95% CI, 1.19-1.99), with no increased risk for category 3 antipsychotics.

“Our research is obviously of interest for preventing breast cancer in antipsychotic-treated patients. Checking a blood prolactin level is cheap and easy [and a high level is] fairly simple to mitigate,” said Dr. Rahman.
 

A matter of debate

Reached for comment, Christoph Correll, MD, professor of psychiatry and molecular medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, said, “The potential elevation of breast cancer risk depending on the dose and time of treatment with antipsychotic medications with varying degrees of prolactin-raising properties has been a topic of research and matter of debate.”

This new study “adds another data point indicating that antipsychotics that are associated on average with a higher prolactin-raising effect than other antipsychotics may increase the risk of breast cancer in women to some degree,” said Dr. Correll, who was not involved with the study.

However, he cautioned that “naturalistic data are always vulnerable to residual confounding, for example, unmeasured effects that could also at least partially explain the results, and the follow-up time of only 4 years (maximum 6 years) in this study was relatively short.

“Nevertheless, given availability of many different antipsychotics with varying degrees of prolactin-raising potential, in women requiring antipsychotic treatment, less prolactin-raising antipsychotics may be preferable,” Dr. Correll said.

“In women receiving prolactin-raising antipsychotics for medium- and longer-term maintenance therapy, prolactin levels should be monitored,” he added.

When an elevated prolactin level is detected, this should be addressed “either via dose reduction, a switch to an alternative antipsychotic that does not raise prolactin levels significantly, or the addition of a partial or full D2 agonist when the prolactin-raising antipsychotic should be continued based on individualized risk assessment,” Dr. Correll advised.

This work was supported by an award from the Alvin J. Siteman Cancer Center; the National Cancer Institute and the National Center for Advancing Translational Sciences of the National Institutes of Health; the Taylor Family Institute for Innovative Psychiatric Research; and the Center for Brain Research in Mood Disorders. The authors have disclosed no relevant financial relationships. Dr. Correll has received royalties from UpToDate and is a stock option holder of LB Pharma.

A version of this article first appeared on Medscape.com.

Editor’s note: Readers’ Forum is a department for correspondence from readers that is not in response to articles published in Current Psychiatry. All submissions to Readers’ Forum undergo peer review and are subject to editing for length and style. For more information, contact [email protected].
 

Since the recent legalization and decriminalization of cannabis (marijuana) use throughout the United States, adolescents’ access to, and use of, cannabis has increased.¹ Cannabis products have been marketed in ways that attract adolescents, such as edible gummies, cookies, and hard candies, as well as by vaping.¹ The adolescent years are a delicate period of development during which individuals are prone to psychiatric illness, including depression, anxiety, and psychosis.^2,3 Here we discuss the relationship between adolescent cannabis use and the development of psychosis.

How cannabis can affect the adolescent brain

The 2 main psychotropic substances found within the cannabis plant are tetrahydrocannabinol (THC) and cannabidiol (CBD).^1,4 Endocannabinoids are fatty acid derivatives produced in the brain that bind to cannabinoid (CB) receptors found in the brain and the peripheral nervous system.^1,4

During adolescence, neurodevelopment and neurochemical balances are evolving, and it’s during this period that the bulk of prefrontal pruning occurs, especially in the glutamatergic and gamma aminobutyric acidergic (GABAergic) neural pathways.⁵ THC affects the CB1 receptors by downregulating the neuron receptors, which then alters the maturation of the prefrontal cortical GABAergic neurons. Also, THC affects the upregulation of the microglia located on the CB2 receptors, thereby altering synaptic pruning even further.^2,5

All of these changes can cause brain insults that can contribute to the precipitation of psychotic decompensation in adolescents who ingest products that contain THC. In addition, consuming THC might hasten the progression of disorder in adolescents who are genetically predisposed to psychotic disorders. However, existing studies must be interpreted with caution because there are other contributing risk factors for psychosis, such as social isolation, that can alter dopamine signaling as well as oligodendrocyte maturation, which can affect myelination in the prefrontal area of the evolving brain. Factors such as increased academic demand can alter the release of cortisol, which in turn affects the dopamine response as well as the structure of the hippocampus as it responds to cortisol. With all of these contributing factors, it is difficult to attribute psychosis in adolescents solely to the use of THC.⁵

How to discuss cannabis usewith adolescents

Clinicians should engage in open-ended therapeutic conversations about cannabis use with their adolescent patients, including the various types of cannabis and methods of use (ingestion vs inhalation, etc). Educate patients about the acute and long-term effects of THC use, including an increased risk of depression, schizophrenia, and substance abuse in adulthood.

For a patient who has experienced a psychotic episode, early intervention has proven to result in greater treatment response and functional improvement because it reduces brain exposure to neurotoxic effects in adolescents.³ Access to community resources such as school counselors can help to create coping strategies and enhance family support, which can optimize treatment outcomes and medication adherence, all of which will minimize the likelihood of another psychotic episode. Kelleher et al⁶ found an increased risk of suicidal behavior after a psychotic experience from any cause in adolescents and young adults, and thereby recommended that clinicians conduct continuous assessment of suicidal ideation in such patients.

Editor’s note: Readers’ Forum is a department for correspondence from readers that is not in response to articles published in Current Psychiatry. All submissions to Readers’ Forum undergo peer review and are subject to editing for length and style. For more information, contact [email protected].
 

Since the recent legalization and decriminalization of cannabis (marijuana) use throughout the United States, adolescents’ access to, and use of, cannabis has increased.¹ Cannabis products have been marketed in ways that attract adolescents, such as edible gummies, cookies, and hard candies, as well as by vaping.¹ The adolescent years are a delicate period of development during which individuals are prone to psychiatric illness, including depression, anxiety, and psychosis.^2,3 Here we discuss the relationship between adolescent cannabis use and the development of psychosis.

How cannabis can affect the adolescent brain

The 2 main psychotropic substances found within the cannabis plant are tetrahydrocannabinol (THC) and cannabidiol (CBD).^1,4 Endocannabinoids are fatty acid derivatives produced in the brain that bind to cannabinoid (CB) receptors found in the brain and the peripheral nervous system.^1,4

During adolescence, neurodevelopment and neurochemical balances are evolving, and it’s during this period that the bulk of prefrontal pruning occurs, especially in the glutamatergic and gamma aminobutyric acidergic (GABAergic) neural pathways.⁵ THC affects the CB1 receptors by downregulating the neuron receptors, which then alters the maturation of the prefrontal cortical GABAergic neurons. Also, THC affects the upregulation of the microglia located on the CB2 receptors, thereby altering synaptic pruning even further.^2,5

All of these changes can cause brain insults that can contribute to the precipitation of psychotic decompensation in adolescents who ingest products that contain THC. In addition, consuming THC might hasten the progression of disorder in adolescents who are genetically predisposed to psychotic disorders. However, existing studies must be interpreted with caution because there are other contributing risk factors for psychosis, such as social isolation, that can alter dopamine signaling as well as oligodendrocyte maturation, which can affect myelination in the prefrontal area of the evolving brain. Factors such as increased academic demand can alter the release of cortisol, which in turn affects the dopamine response as well as the structure of the hippocampus as it responds to cortisol. With all of these contributing factors, it is difficult to attribute psychosis in adolescents solely to the use of THC.⁵

How to discuss cannabis usewith adolescents

Clinicians should engage in open-ended therapeutic conversations about cannabis use with their adolescent patients, including the various types of cannabis and methods of use (ingestion vs inhalation, etc). Educate patients about the acute and long-term effects of THC use, including an increased risk of depression, schizophrenia, and substance abuse in adulthood.

For a patient who has experienced a psychotic episode, early intervention has proven to result in greater treatment response and functional improvement because it reduces brain exposure to neurotoxic effects in adolescents.³ Access to community resources such as school counselors can help to create coping strategies and enhance family support, which can optimize treatment outcomes and medication adherence, all of which will minimize the likelihood of another psychotic episode. Kelleher et al⁶ found an increased risk of suicidal behavior after a psychotic experience from any cause in adolescents and young adults, and thereby recommended that clinicians conduct continuous assessment of suicidal ideation in such patients.

Editor’s note: Readers’ Forum is a department for correspondence from readers that is not in response to articles published in Current Psychiatry. All submissions to Readers’ Forum undergo peer review and are subject to editing for length and style. For more information, contact [email protected].
 

Since the recent legalization and decriminalization of cannabis (marijuana) use throughout the United States, adolescents’ access to, and use of, cannabis has increased.¹ Cannabis products have been marketed in ways that attract adolescents, such as edible gummies, cookies, and hard candies, as well as by vaping.¹ The adolescent years are a delicate period of development during which individuals are prone to psychiatric illness, including depression, anxiety, and psychosis.^2,3 Here we discuss the relationship between adolescent cannabis use and the development of psychosis.

How cannabis can affect the adolescent brain

The 2 main psychotropic substances found within the cannabis plant are tetrahydrocannabinol (THC) and cannabidiol (CBD).^1,4 Endocannabinoids are fatty acid derivatives produced in the brain that bind to cannabinoid (CB) receptors found in the brain and the peripheral nervous system.^1,4

During adolescence, neurodevelopment and neurochemical balances are evolving, and it’s during this period that the bulk of prefrontal pruning occurs, especially in the glutamatergic and gamma aminobutyric acidergic (GABAergic) neural pathways.⁵ THC affects the CB1 receptors by downregulating the neuron receptors, which then alters the maturation of the prefrontal cortical GABAergic neurons. Also, THC affects the upregulation of the microglia located on the CB2 receptors, thereby altering synaptic pruning even further.^2,5

All of these changes can cause brain insults that can contribute to the precipitation of psychotic decompensation in adolescents who ingest products that contain THC. In addition, consuming THC might hasten the progression of disorder in adolescents who are genetically predisposed to psychotic disorders. However, existing studies must be interpreted with caution because there are other contributing risk factors for psychosis, such as social isolation, that can alter dopamine signaling as well as oligodendrocyte maturation, which can affect myelination in the prefrontal area of the evolving brain. Factors such as increased academic demand can alter the release of cortisol, which in turn affects the dopamine response as well as the structure of the hippocampus as it responds to cortisol. With all of these contributing factors, it is difficult to attribute psychosis in adolescents solely to the use of THC.⁵

How to discuss cannabis usewith adolescents

Clinicians should engage in open-ended therapeutic conversations about cannabis use with their adolescent patients, including the various types of cannabis and methods of use (ingestion vs inhalation, etc). Educate patients about the acute and long-term effects of THC use, including an increased risk of depression, schizophrenia, and substance abuse in adulthood.

For a patient who has experienced a psychotic episode, early intervention has proven to result in greater treatment response and functional improvement because it reduces brain exposure to neurotoxic effects in adolescents.³ Access to community resources such as school counselors can help to create coping strategies and enhance family support, which can optimize treatment outcomes and medication adherence, all of which will minimize the likelihood of another psychotic episode. Kelleher et al⁶ found an increased risk of suicidal behavior after a psychotic experience from any cause in adolescents and young adults, and thereby recommended that clinicians conduct continuous assessment of suicidal ideation in such patients.

A new tool designed by psychiatrists to help guide nutritional counseling in patients with schizophrenia spectrum disorders (SSD) has been released.

Lisovskaya/ThinkStock

The worksheet and clinician guide were developed using results from a recent scoping review on the relationship between diet and mental health in patients with SSD, and a feedback process involving a focus group with psychiatrists and individuals who had lived experience with psychosis.

“Mental health clinicians already have the training to help our patients make behavioral changes,” lead author Laura LaChance, MD, lecturer, department of psychiatry, and a psychiatrist at St. Mary’s Hospital Centre, McGill University, Montreal, said in an interview.

“We work every day with patients to help them to reduce their substance use, improve their sleep, take medications, etc., and nutrition should be added to the radar [since] eating well for mental health is part of self-care and can be included in mental health treatment plans,” she said.

The paper was published online Nov. 10 in BMC Psychiatry.
 

Nutrition frequently ignored

Dr. LaChance noted that “nutrition is largely absent from mental health training programs and often ignored in clinical practice.”

The investigators “wanted to create a tool to help incorporate basic nutritional counseling into the care of individuals with severe mental illness.” They wanted the tool “to be simple enough to understand for patients and simple enough to use for mental health care professionals who don’t have any official nutrition training.”

The team developed a worksheet that includes dietary recommendations, the majority of which are supported by the scoping review and consistent with Canada’s Food Guide. The review “identified all of the published literature related to the relationship between diet and psychiatric symptoms of SSD,” synthesizing the results of 822 prior articles.

It promotes the addition of nutritious food rather than the restriction of calories or individual foods and does not contradict generally accepted recommendations for weight management. It is suitable for all patients including those with low or normal body mass index and provides psychoeducation about the importance of quality nutrition as a determinant of mental health.
 

Positive tone

The worksheet was informed by social cognitive theory, which “highlights the important role of goal setting and behavior contracting, reinforcement, self-control, social norms, attitudes, and self-efficacy.”

It provides “basic education about important nutrition principles” as well as “very simple recommendations to increase knowledge about healthy eating” and “actionable tips for individuals to incorporate.” The researchers used a “positive” tone and included motivational interviewing questions.

“Delivery of the intervention by the patient’s mental health care provider is by design, in an attempt to address the widely held misbelief that nutrition intervention is of limited importance to mental health care and begin to change norms,” Dr. LaChance said.

The worksheet addresses monetary barriers to healthy eating; offers practical tips to “increase perceived control and self-efficacy”; is written in simple, accessible, nontechnical language; and includes foods from a range of cultural backgrounds.

To ensure that the worksheet and clinical guide met the needs of the target population, the researchers conducted a focus group with five psychiatrists and individual phone interviews with people who live with psychosis (n = 6).

Participants with psychosis were evenly divided between male and female and six age groups were represented: younger than 20 years; 21-30 years; 31-40 years; 41-50 years; 51-50 years; and older than 60 years. Of these participants, half scored in the “limited literacy” range, based on a nutritional literacy assessment tool (the Newest Vital Sign [NVS]).

A revised version of the worksheet, taking participants’ feedback into account, was mailed to all participants, who then provided further feedback on the revised version.


 

‘Unspoken area’

The clinician guide contains not only an overview and a suggested agenda to steer discussion, but also a sample visual representation of the recommended relative proportions of different food categories in an ideal meal as well as sample meals, a budgeting discussion, and a list of goals.

A closing statement encourages the clinician to “keep the messaging positive, celebrate small victories, and provide encouragement.”

Specific dietary recommendations include choosing complex carbohydrates and healthy fats, reducing highly processed foods and sugar, adding vegetables and fruits to meals and snacks, and eating protein-rich foods throughout the day.

A “noteworthy theme” that emerged in discussions with psychiatrists as well as participants with SSD was “the lack of nutrition training in medical education and psychiatric residency and the general absence of nutritional counseling in this field of medicine.”

One participant described nutrition as “definitely an unspoken area” in schizophrenia – especially in institutional settings, where “you are overloaded with sugars, not healthy grain, not complex grain. You get white bread sandwiches, shitty juice.”
 

Powerful tool

Commenting on the paper for this news organization, Uma Naidoo, MD, director of nutritional and lifestyle psychiatry, Massachusetts General Hospital, and a nutrition educator at Harvard Medical School, both in Boston, said she appreciates that this paper “is seeking methods to expand treatment options for those with SSD and improve provider understanding/knowledge of therapeutic foods.”

She called the pilot evaluation “notably small,” but added that it “provides results to suggest that scaling this worksheet/guide may hold promise to better provide nutritional counseling to those with psychiatric illness.”

Dr. Naidoo, also a chef and the author of “This Is Your Brain on Food,” who was not involved in the study said, “I’ve seen the power of food as medicine in my own hospital practice and do believe that food is one of the most powerful tools we have in supporting mental fitness and emotional well-being.”

The project was funded by the Canadian CAM Research Fund. Dr. LaChance and Dr. Naidoo have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

A new tool designed by psychiatrists to help guide nutritional counseling in patients with schizophrenia spectrum disorders (SSD) has been released.

Lisovskaya/ThinkStock

The worksheet and clinician guide were developed using results from a recent scoping review on the relationship between diet and mental health in patients with SSD, and a feedback process involving a focus group with psychiatrists and individuals who had lived experience with psychosis.

“Mental health clinicians already have the training to help our patients make behavioral changes,” lead author Laura LaChance, MD, lecturer, department of psychiatry, and a psychiatrist at St. Mary’s Hospital Centre, McGill University, Montreal, said in an interview.

“We work every day with patients to help them to reduce their substance use, improve their sleep, take medications, etc., and nutrition should be added to the radar [since] eating well for mental health is part of self-care and can be included in mental health treatment plans,” she said.

The paper was published online Nov. 10 in BMC Psychiatry.
 

Nutrition frequently ignored

Dr. LaChance noted that “nutrition is largely absent from mental health training programs and often ignored in clinical practice.”

The investigators “wanted to create a tool to help incorporate basic nutritional counseling into the care of individuals with severe mental illness.” They wanted the tool “to be simple enough to understand for patients and simple enough to use for mental health care professionals who don’t have any official nutrition training.”

The team developed a worksheet that includes dietary recommendations, the majority of which are supported by the scoping review and consistent with Canada’s Food Guide. The review “identified all of the published literature related to the relationship between diet and psychiatric symptoms of SSD,” synthesizing the results of 822 prior articles.

It promotes the addition of nutritious food rather than the restriction of calories or individual foods and does not contradict generally accepted recommendations for weight management. It is suitable for all patients including those with low or normal body mass index and provides psychoeducation about the importance of quality nutrition as a determinant of mental health.
 

Positive tone

The worksheet was informed by social cognitive theory, which “highlights the important role of goal setting and behavior contracting, reinforcement, self-control, social norms, attitudes, and self-efficacy.”

It provides “basic education about important nutrition principles” as well as “very simple recommendations to increase knowledge about healthy eating” and “actionable tips for individuals to incorporate.” The researchers used a “positive” tone and included motivational interviewing questions.

“Delivery of the intervention by the patient’s mental health care provider is by design, in an attempt to address the widely held misbelief that nutrition intervention is of limited importance to mental health care and begin to change norms,” Dr. LaChance said.

The worksheet addresses monetary barriers to healthy eating; offers practical tips to “increase perceived control and self-efficacy”; is written in simple, accessible, nontechnical language; and includes foods from a range of cultural backgrounds.

To ensure that the worksheet and clinical guide met the needs of the target population, the researchers conducted a focus group with five psychiatrists and individual phone interviews with people who live with psychosis (n = 6).

Participants with psychosis were evenly divided between male and female and six age groups were represented: younger than 20 years; 21-30 years; 31-40 years; 41-50 years; 51-50 years; and older than 60 years. Of these participants, half scored in the “limited literacy” range, based on a nutritional literacy assessment tool (the Newest Vital Sign [NVS]).

A revised version of the worksheet, taking participants’ feedback into account, was mailed to all participants, who then provided further feedback on the revised version.


 

‘Unspoken area’

The clinician guide contains not only an overview and a suggested agenda to steer discussion, but also a sample visual representation of the recommended relative proportions of different food categories in an ideal meal as well as sample meals, a budgeting discussion, and a list of goals.

A closing statement encourages the clinician to “keep the messaging positive, celebrate small victories, and provide encouragement.”

Specific dietary recommendations include choosing complex carbohydrates and healthy fats, reducing highly processed foods and sugar, adding vegetables and fruits to meals and snacks, and eating protein-rich foods throughout the day.

A “noteworthy theme” that emerged in discussions with psychiatrists as well as participants with SSD was “the lack of nutrition training in medical education and psychiatric residency and the general absence of nutritional counseling in this field of medicine.”

One participant described nutrition as “definitely an unspoken area” in schizophrenia – especially in institutional settings, where “you are overloaded with sugars, not healthy grain, not complex grain. You get white bread sandwiches, shitty juice.”
 

Powerful tool

Commenting on the paper for this news organization, Uma Naidoo, MD, director of nutritional and lifestyle psychiatry, Massachusetts General Hospital, and a nutrition educator at Harvard Medical School, both in Boston, said she appreciates that this paper “is seeking methods to expand treatment options for those with SSD and improve provider understanding/knowledge of therapeutic foods.”

She called the pilot evaluation “notably small,” but added that it “provides results to suggest that scaling this worksheet/guide may hold promise to better provide nutritional counseling to those with psychiatric illness.”

Dr. Naidoo, also a chef and the author of “This Is Your Brain on Food,” who was not involved in the study said, “I’ve seen the power of food as medicine in my own hospital practice and do believe that food is one of the most powerful tools we have in supporting mental fitness and emotional well-being.”

The project was funded by the Canadian CAM Research Fund. Dr. LaChance and Dr. Naidoo have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

A new tool designed by psychiatrists to help guide nutritional counseling in patients with schizophrenia spectrum disorders (SSD) has been released.

Lisovskaya/ThinkStock

The worksheet and clinician guide were developed using results from a recent scoping review on the relationship between diet and mental health in patients with SSD, and a feedback process involving a focus group with psychiatrists and individuals who had lived experience with psychosis.

“Mental health clinicians already have the training to help our patients make behavioral changes,” lead author Laura LaChance, MD, lecturer, department of psychiatry, and a psychiatrist at St. Mary’s Hospital Centre, McGill University, Montreal, said in an interview.

“We work every day with patients to help them to reduce their substance use, improve their sleep, take medications, etc., and nutrition should be added to the radar [since] eating well for mental health is part of self-care and can be included in mental health treatment plans,” she said.

The paper was published online Nov. 10 in BMC Psychiatry.
 

Nutrition frequently ignored

Dr. LaChance noted that “nutrition is largely absent from mental health training programs and often ignored in clinical practice.”

The investigators “wanted to create a tool to help incorporate basic nutritional counseling into the care of individuals with severe mental illness.” They wanted the tool “to be simple enough to understand for patients and simple enough to use for mental health care professionals who don’t have any official nutrition training.”

The team developed a worksheet that includes dietary recommendations, the majority of which are supported by the scoping review and consistent with Canada’s Food Guide. The review “identified all of the published literature related to the relationship between diet and psychiatric symptoms of SSD,” synthesizing the results of 822 prior articles.

It promotes the addition of nutritious food rather than the restriction of calories or individual foods and does not contradict generally accepted recommendations for weight management. It is suitable for all patients including those with low or normal body mass index and provides psychoeducation about the importance of quality nutrition as a determinant of mental health.
 

Positive tone

The worksheet was informed by social cognitive theory, which “highlights the important role of goal setting and behavior contracting, reinforcement, self-control, social norms, attitudes, and self-efficacy.”

It provides “basic education about important nutrition principles” as well as “very simple recommendations to increase knowledge about healthy eating” and “actionable tips for individuals to incorporate.” The researchers used a “positive” tone and included motivational interviewing questions.

“Delivery of the intervention by the patient’s mental health care provider is by design, in an attempt to address the widely held misbelief that nutrition intervention is of limited importance to mental health care and begin to change norms,” Dr. LaChance said.

The worksheet addresses monetary barriers to healthy eating; offers practical tips to “increase perceived control and self-efficacy”; is written in simple, accessible, nontechnical language; and includes foods from a range of cultural backgrounds.

To ensure that the worksheet and clinical guide met the needs of the target population, the researchers conducted a focus group with five psychiatrists and individual phone interviews with people who live with psychosis (n = 6).

Participants with psychosis were evenly divided between male and female and six age groups were represented: younger than 20 years; 21-30 years; 31-40 years; 41-50 years; 51-50 years; and older than 60 years. Of these participants, half scored in the “limited literacy” range, based on a nutritional literacy assessment tool (the Newest Vital Sign [NVS]).

A revised version of the worksheet, taking participants’ feedback into account, was mailed to all participants, who then provided further feedback on the revised version.


 

‘Unspoken area’

The clinician guide contains not only an overview and a suggested agenda to steer discussion, but also a sample visual representation of the recommended relative proportions of different food categories in an ideal meal as well as sample meals, a budgeting discussion, and a list of goals.

A closing statement encourages the clinician to “keep the messaging positive, celebrate small victories, and provide encouragement.”

Specific dietary recommendations include choosing complex carbohydrates and healthy fats, reducing highly processed foods and sugar, adding vegetables and fruits to meals and snacks, and eating protein-rich foods throughout the day.

A “noteworthy theme” that emerged in discussions with psychiatrists as well as participants with SSD was “the lack of nutrition training in medical education and psychiatric residency and the general absence of nutritional counseling in this field of medicine.”

One participant described nutrition as “definitely an unspoken area” in schizophrenia – especially in institutional settings, where “you are overloaded with sugars, not healthy grain, not complex grain. You get white bread sandwiches, shitty juice.”
 

Powerful tool

Commenting on the paper for this news organization, Uma Naidoo, MD, director of nutritional and lifestyle psychiatry, Massachusetts General Hospital, and a nutrition educator at Harvard Medical School, both in Boston, said she appreciates that this paper “is seeking methods to expand treatment options for those with SSD and improve provider understanding/knowledge of therapeutic foods.”

She called the pilot evaluation “notably small,” but added that it “provides results to suggest that scaling this worksheet/guide may hold promise to better provide nutritional counseling to those with psychiatric illness.”

Dr. Naidoo, also a chef and the author of “This Is Your Brain on Food,” who was not involved in the study said, “I’ve seen the power of food as medicine in my own hospital practice and do believe that food is one of the most powerful tools we have in supporting mental fitness and emotional well-being.”

The project was funded by the Canadian CAM Research Fund. Dr. LaChance and Dr. Naidoo have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Schizophrenia and severe mood and anxiety disorders are associated with a significantly lower risk of COVID-19 but are tied to a two- to fourfold increased risk of death from the virus, new research shows.

The study results held after the researchers controlled for other risk factors, and they contradict an earlier study that showed no increased mortality risk associated with mood or anxiety disorders. The findings come as the overall number of deaths in the United States approaches 800,000.

“These patients were less likely to be infected because they were probably less exposed, but once they have the infection, they are more prone to worse outcomes,” lead author Antonio L. Teixeira, MD, PhD, professor of psychiatry with McGovern Medical School at the University of Texas Health Science Center at Houston, said in an interview.

The study was published online Nov. 23 in JAMA Network Open.
 

Unexpected finding

Researchers analyzed electronic health records for 2.5 million adults with private health insurance who were tested for COVID-19 in 2020.

The overall positivity rate for the entire cohort was 11.91%, and patients with severe psychiatric illness fell below that rate. Positivity rates were 9.86% for people with schizophrenia or mood disorders and 11.17% among those with anxiety disorder.

Despite their lower positivity rate, patients with schizophrenia had the highest odds of death from COVID-19 after adjustment for age, race, body mass index, and comorbidities (aOR, 3.74; 95% confidence interval, 2.66-5.24).

Those results were not very surprising, Dr. Teixeira said, as earlier studies have reported similar findings. However, the data on individuals with mood and anxiety disorders were unexpected.

Patients with mood disorders were nearly three times as likely to die (aOR, 2.76; 95% CI, 2.00-3.81), and those with anxiety disorders had more than double the mortality risk (aOR, 2.34; 95% CI, 1.68-3.27).

“We were expecting some increase, but there was strong evidence in those populations as well,” he said. “We were especially surprised at the data on patients with anxiety disorders.”
 

An outstanding question

These findings contradict a study published Jan. 27, 2021, in JAMA Psychiatry, that showed no significant increase in mortality risk among those with mood or anxiety disorders.

Study methodology and timing might explain some of the differences, Katlyn Nemani, MD, a research assistant professor of psychiatry at New York University, who led that earlier study, said in an interview.

Dr. Nemani’s study had a smaller study sample, examined mortality over a 30-day period after a positive COVID-19 test, and was limited to the peak of the pandemic in New York, between March and May 2020. Dr. Teixeira’s team examined a full year of data and assessed mortality for 7 days following a positive test.

“It is possible patients with some psychiatric disorders were less likely to receive or successfully respond to treatment for severe COVD-19 which evolved during the course of the pandemic,” Dr. Nemani said, adding that it’s also possible that differences in mortality in the days following infection became attenuated over time.

While a meta-analysis published in July and reported by this news organization at that time did show higher COVID-19 mortality among patients with mood disorders, the risk was far lower than that reported in this new study. That report, which included 33 studies in 22 countries, also found no increase in risk among those with anxiety disorder.

In October, the Centers for Disease Control and Prevention added mood disorders to the list of medical conditions that increase the risk for more severe COVID-19. Schizophrenia was already on that list.

“The outstanding question is what underlies this increased risk,” Dr. Nemani said. “Future studies focused on immune-mediated mechanisms and other potential explanations will help guide targeted interventions to reduce morbidity and mortality in this vulnerable population.”

Funding for the study was not disclosed. Dr. Teixeira and Dr. Nemani report no conflicts of interest.

A version of this article first appeared on Medscape.com.

Schizophrenia and severe mood and anxiety disorders are associated with a significantly lower risk of COVID-19 but are tied to a two- to fourfold increased risk of death from the virus, new research shows.

The study results held after the researchers controlled for other risk factors, and they contradict an earlier study that showed no increased mortality risk associated with mood or anxiety disorders. The findings come as the overall number of deaths in the United States approaches 800,000.

“These patients were less likely to be infected because they were probably less exposed, but once they have the infection, they are more prone to worse outcomes,” lead author Antonio L. Teixeira, MD, PhD, professor of psychiatry with McGovern Medical School at the University of Texas Health Science Center at Houston, said in an interview.

The study was published online Nov. 23 in JAMA Network Open.
 

Unexpected finding

Researchers analyzed electronic health records for 2.5 million adults with private health insurance who were tested for COVID-19 in 2020.

The overall positivity rate for the entire cohort was 11.91%, and patients with severe psychiatric illness fell below that rate. Positivity rates were 9.86% for people with schizophrenia or mood disorders and 11.17% among those with anxiety disorder.

Despite their lower positivity rate, patients with schizophrenia had the highest odds of death from COVID-19 after adjustment for age, race, body mass index, and comorbidities (aOR, 3.74; 95% confidence interval, 2.66-5.24).

Those results were not very surprising, Dr. Teixeira said, as earlier studies have reported similar findings. However, the data on individuals with mood and anxiety disorders were unexpected.

Patients with mood disorders were nearly three times as likely to die (aOR, 2.76; 95% CI, 2.00-3.81), and those with anxiety disorders had more than double the mortality risk (aOR, 2.34; 95% CI, 1.68-3.27).

“We were expecting some increase, but there was strong evidence in those populations as well,” he said. “We were especially surprised at the data on patients with anxiety disorders.”
 

An outstanding question

These findings contradict a study published Jan. 27, 2021, in JAMA Psychiatry, that showed no significant increase in mortality risk among those with mood or anxiety disorders.

Study methodology and timing might explain some of the differences, Katlyn Nemani, MD, a research assistant professor of psychiatry at New York University, who led that earlier study, said in an interview.

Dr. Nemani’s study had a smaller study sample, examined mortality over a 30-day period after a positive COVID-19 test, and was limited to the peak of the pandemic in New York, between March and May 2020. Dr. Teixeira’s team examined a full year of data and assessed mortality for 7 days following a positive test.

“It is possible patients with some psychiatric disorders were less likely to receive or successfully respond to treatment for severe COVD-19 which evolved during the course of the pandemic,” Dr. Nemani said, adding that it’s also possible that differences in mortality in the days following infection became attenuated over time.

While a meta-analysis published in July and reported by this news organization at that time did show higher COVID-19 mortality among patients with mood disorders, the risk was far lower than that reported in this new study. That report, which included 33 studies in 22 countries, also found no increase in risk among those with anxiety disorder.

In October, the Centers for Disease Control and Prevention added mood disorders to the list of medical conditions that increase the risk for more severe COVID-19. Schizophrenia was already on that list.

“The outstanding question is what underlies this increased risk,” Dr. Nemani said. “Future studies focused on immune-mediated mechanisms and other potential explanations will help guide targeted interventions to reduce morbidity and mortality in this vulnerable population.”

Funding for the study was not disclosed. Dr. Teixeira and Dr. Nemani report no conflicts of interest.

A version of this article first appeared on Medscape.com.

Schizophrenia and severe mood and anxiety disorders are associated with a significantly lower risk of COVID-19 but are tied to a two- to fourfold increased risk of death from the virus, new research shows.

The study results held after the researchers controlled for other risk factors, and they contradict an earlier study that showed no increased mortality risk associated with mood or anxiety disorders. The findings come as the overall number of deaths in the United States approaches 800,000.

“These patients were less likely to be infected because they were probably less exposed, but once they have the infection, they are more prone to worse outcomes,” lead author Antonio L. Teixeira, MD, PhD, professor of psychiatry with McGovern Medical School at the University of Texas Health Science Center at Houston, said in an interview.

The study was published online Nov. 23 in JAMA Network Open.
 

Unexpected finding

Researchers analyzed electronic health records for 2.5 million adults with private health insurance who were tested for COVID-19 in 2020.

The overall positivity rate for the entire cohort was 11.91%, and patients with severe psychiatric illness fell below that rate. Positivity rates were 9.86% for people with schizophrenia or mood disorders and 11.17% among those with anxiety disorder.

Despite their lower positivity rate, patients with schizophrenia had the highest odds of death from COVID-19 after adjustment for age, race, body mass index, and comorbidities (aOR, 3.74; 95% confidence interval, 2.66-5.24).

Those results were not very surprising, Dr. Teixeira said, as earlier studies have reported similar findings. However, the data on individuals with mood and anxiety disorders were unexpected.

Patients with mood disorders were nearly three times as likely to die (aOR, 2.76; 95% CI, 2.00-3.81), and those with anxiety disorders had more than double the mortality risk (aOR, 2.34; 95% CI, 1.68-3.27).

“We were expecting some increase, but there was strong evidence in those populations as well,” he said. “We were especially surprised at the data on patients with anxiety disorders.”
 

An outstanding question

These findings contradict a study published Jan. 27, 2021, in JAMA Psychiatry, that showed no significant increase in mortality risk among those with mood or anxiety disorders.

Study methodology and timing might explain some of the differences, Katlyn Nemani, MD, a research assistant professor of psychiatry at New York University, who led that earlier study, said in an interview.

Dr. Nemani’s study had a smaller study sample, examined mortality over a 30-day period after a positive COVID-19 test, and was limited to the peak of the pandemic in New York, between March and May 2020. Dr. Teixeira’s team examined a full year of data and assessed mortality for 7 days following a positive test.

“It is possible patients with some psychiatric disorders were less likely to receive or successfully respond to treatment for severe COVD-19 which evolved during the course of the pandemic,” Dr. Nemani said, adding that it’s also possible that differences in mortality in the days following infection became attenuated over time.

While a meta-analysis published in July and reported by this news organization at that time did show higher COVID-19 mortality among patients with mood disorders, the risk was far lower than that reported in this new study. That report, which included 33 studies in 22 countries, also found no increase in risk among those with anxiety disorder.

In October, the Centers for Disease Control and Prevention added mood disorders to the list of medical conditions that increase the risk for more severe COVID-19. Schizophrenia was already on that list.

“The outstanding question is what underlies this increased risk,” Dr. Nemani said. “Future studies focused on immune-mediated mechanisms and other potential explanations will help guide targeted interventions to reduce morbidity and mortality in this vulnerable population.”

Funding for the study was not disclosed. Dr. Teixeira and Dr. Nemani report no conflicts of interest.

A version of this article first appeared on Medscape.com.

U.S. regulators have put some of the new clozapine risk evaluation and mitigation strategy (REMS) program on temporary hold because of start-up difficulties, including long telephone wait times.

In a Nov. 19 statement, the Food and Drug Administration announced it is temporarily suspending certain aspects of the program because of challenges reported by medical professionals who were trying to meet the original Nov. 15 deadline.

In response, the FDA has conceded that pharmacists can dispense clozapine without a REMS dispense authorization (RDA). Wholesalers can continue to ship clozapine to pharmacies and health care settings without confirming enrollment in the REMS, the FDA also said.

“We encourage pharmacists and prescribers to continue working with the clozapine REMS to complete certification and patient enrollment,” the FDA said in a statement.

In July, the FDA approved modifications to the clozapine REMS strategy. Clozapine is used to treat schizophrenia that is not well controlled with standard antipsychotics. It is also prescribed to patients with recurrent suicidal behavior associated with schizophrenia or schizoaffective disorder.

Although it is highly effective in some patients, it also carries serious risks. Specifically, it can decrease the neutrophil count, which can lead to severe neutropenia, serious infections, and death.

As a result, those taking the drug must undergo regular absolute neutrophil count (ANC) monitoring. Clozapine REMS is intended to maximize the benefits of the drug and minimize risk.

HCP frustration

In its statement, the FDA said medical professionals had alerted the agency about ongoing difficulties with the clozapine REMS program, including a high call volume and long call wait times for stakeholders.

“We understand that this has caused frustration and has led to patient access issues for clozapine,” the FDA said in a statement.

“Continuity of care, patient access to clozapine, and patient safety are our highest priorities,” the FDA added. “We are working closely with the clozapine REMS program administrators to address these challenges and avoid interruptions in patient care.”

Abrupt discontinuation of clozapine can result in significant complications, the FDA said. The agency urged use of “clinical judgment” with respect to prescribing and dispensing clozapine to patients with an absolute neutrophil count within the acceptable range.

As previously reported by this news organization, the American Psychiatric Association and other national groups in a September letter asked the FDA to delay the implementation of a new REMS program until after Jan. 1, 2022.

A version of this article first appeared on Medscape.com.

U.S. regulators have put some of the new clozapine risk evaluation and mitigation strategy (REMS) program on temporary hold because of start-up difficulties, including long telephone wait times.

In a Nov. 19 statement, the Food and Drug Administration announced it is temporarily suspending certain aspects of the program because of challenges reported by medical professionals who were trying to meet the original Nov. 15 deadline.

In response, the FDA has conceded that pharmacists can dispense clozapine without a REMS dispense authorization (RDA). Wholesalers can continue to ship clozapine to pharmacies and health care settings without confirming enrollment in the REMS, the FDA also said.

“We encourage pharmacists and prescribers to continue working with the clozapine REMS to complete certification and patient enrollment,” the FDA said in a statement.

In July, the FDA approved modifications to the clozapine REMS strategy. Clozapine is used to treat schizophrenia that is not well controlled with standard antipsychotics. It is also prescribed to patients with recurrent suicidal behavior associated with schizophrenia or schizoaffective disorder.

Although it is highly effective in some patients, it also carries serious risks. Specifically, it can decrease the neutrophil count, which can lead to severe neutropenia, serious infections, and death.

As a result, those taking the drug must undergo regular absolute neutrophil count (ANC) monitoring. Clozapine REMS is intended to maximize the benefits of the drug and minimize risk.

HCP frustration

In its statement, the FDA said medical professionals had alerted the agency about ongoing difficulties with the clozapine REMS program, including a high call volume and long call wait times for stakeholders.

“We understand that this has caused frustration and has led to patient access issues for clozapine,” the FDA said in a statement.

“Continuity of care, patient access to clozapine, and patient safety are our highest priorities,” the FDA added. “We are working closely with the clozapine REMS program administrators to address these challenges and avoid interruptions in patient care.”

Abrupt discontinuation of clozapine can result in significant complications, the FDA said. The agency urged use of “clinical judgment” with respect to prescribing and dispensing clozapine to patients with an absolute neutrophil count within the acceptable range.

As previously reported by this news organization, the American Psychiatric Association and other national groups in a September letter asked the FDA to delay the implementation of a new REMS program until after Jan. 1, 2022.

A version of this article first appeared on Medscape.com.

U.S. regulators have put some of the new clozapine risk evaluation and mitigation strategy (REMS) program on temporary hold because of start-up difficulties, including long telephone wait times.

In a Nov. 19 statement, the Food and Drug Administration announced it is temporarily suspending certain aspects of the program because of challenges reported by medical professionals who were trying to meet the original Nov. 15 deadline.

In response, the FDA has conceded that pharmacists can dispense clozapine without a REMS dispense authorization (RDA). Wholesalers can continue to ship clozapine to pharmacies and health care settings without confirming enrollment in the REMS, the FDA also said.

“We encourage pharmacists and prescribers to continue working with the clozapine REMS to complete certification and patient enrollment,” the FDA said in a statement.

In July, the FDA approved modifications to the clozapine REMS strategy. Clozapine is used to treat schizophrenia that is not well controlled with standard antipsychotics. It is also prescribed to patients with recurrent suicidal behavior associated with schizophrenia or schizoaffective disorder.

Although it is highly effective in some patients, it also carries serious risks. Specifically, it can decrease the neutrophil count, which can lead to severe neutropenia, serious infections, and death.

As a result, those taking the drug must undergo regular absolute neutrophil count (ANC) monitoring. Clozapine REMS is intended to maximize the benefits of the drug and minimize risk.

HCP frustration

In its statement, the FDA said medical professionals had alerted the agency about ongoing difficulties with the clozapine REMS program, including a high call volume and long call wait times for stakeholders.

“We understand that this has caused frustration and has led to patient access issues for clozapine,” the FDA said in a statement.

“Continuity of care, patient access to clozapine, and patient safety are our highest priorities,” the FDA added. “We are working closely with the clozapine REMS program administrators to address these challenges and avoid interruptions in patient care.”

Abrupt discontinuation of clozapine can result in significant complications, the FDA said. The agency urged use of “clinical judgment” with respect to prescribing and dispensing clozapine to patients with an absolute neutrophil count within the acceptable range.

As previously reported by this news organization, the American Psychiatric Association and other national groups in a September letter asked the FDA to delay the implementation of a new REMS program until after Jan. 1, 2022.

A version of this article first appeared on Medscape.com.

Use of a transdermal blonanserin patch significantly improved extrapyramidal symptoms (EPS), compared with oral blonanserin tablets in patients with schizophrenia, according to results of an open-label study of 155 adults.

Blonanserin, a second-generation antipsychotic, has been shown to reduce extrapyramidal symptoms when used to treat schizophrenia, but the impact of switching to a patch on extrapyramidal symptoms and on the use of antiparkinson drugs has not been well studied, Kazutaka Ohi, MD, of Gifu University Graduate School of Medicine, Seki, Japan, and colleagues wrote. Advantages of the patch include the ability to provide stable blood concentrations and the ability to be concealed under clothing to avoid patients’ embarrassment at taking oral medications.

In a study published in Progress in Neuropsychopharmacology & Biological Psychiatry, the researchers identified 155 adults aged 18 years and older diagnosed with schizophrenia who were treated at 37 medical institutions in Japan between February 2015 and May 2017.

The first cohort of 97 patients received blonanserin tablets (8-16 mg/day) for 6 weeks, followed by blonanserin transdermal patches (40-80 mg/day) once daily for 1 year. The second cohort of 58 patients received continuous blonanserin patch therapy. Extrapyramidal symptoms were assessed using the Drug-Induced Extrapyramidal Symptoms Scale (DIEPSS); individual scores ranged from a 0 for normal to a 4 for severe.

Overall, DIEPSS scores decreased significantly in both cohorts after switching from blonanserin tablets or powders to transdermal patches. The average DIEPSS change from baseline at 3, 6, and 12 months was –0.44, –0.07, and –0.14, respectively, in cohort 1, and –0.16, –0.74, and –0.81, respectively, in cohort 2.

The researchers also assessed the impact of transition to transdermal patches on the use of antiparkinsonism drugs using the biperiden equivalents of total antiparkinsonian drugs (BPD-eq) measure. At baseline, about 22% of patients used concomitant antiparkinsonism drugs, compared with 25.8% at 1 year after starting patch treatment. The dose of antiparkinson drugs was not significantly decreased after switching to transdermal patches, in part because of psychiatrists’ prescribing behaviors, Dr. Ohi and colleagues noted.

As a secondary outcome, the researchers examined psychotic symptoms and found that Positive and Negative Syndrome Scale (PANSS) negative symptom scores decreased significantly in patients in cohort 1 who switched from tablets or powders to patches. Changes in scores from baseline to 3, 6, and 12 months were –0.7, –1.0, and –1.3, respectively. Positive PANSS scores did not change significantly in cohort 1. In cohort 2, both positive and negative PANSS scores decreased significantly over 12 months after switching from blonanserin tablets/powders to patches. The mean changes in scores from baseline to 3, 6, and 12 months were –1.6, –2.3, and –2.4, respectively, for PANSS positive symptom scores, and –1.4, –2.7, and –2.8, respectively, for negative symptom scores.

A total of 41.2% of cohort 1 patients and 44.8% of cohort 2 patients discontinued patch treatments by 1 year. Four patients discontinued the patch because of EPS during the treatment period in cohort 1; no patients in cohort 2 discontinued because of EPS.

The study findings were limited by several factors, including the open-label design and lack of controls; also, the study did not examine crossover changes in patients who switched from tablets or powders to patches, the researchers noted.

However, the results indicate that direct switching from blonanserin tablets or powders to transdermal patches reduced EPS and psychotic symptoms in schizophrenia and may be more acceptable to patients, compared with oral medications, as well as more effective, they concluded.

The study received no outside funding, and Dr. Ohi and colleagues had no disclosures.

Use of a transdermal blonanserin patch significantly improved extrapyramidal symptoms (EPS), compared with oral blonanserin tablets in patients with schizophrenia, according to results of an open-label study of 155 adults.

Blonanserin, a second-generation antipsychotic, has been shown to reduce extrapyramidal symptoms when used to treat schizophrenia, but the impact of switching to a patch on extrapyramidal symptoms and on the use of antiparkinson drugs has not been well studied, Kazutaka Ohi, MD, of Gifu University Graduate School of Medicine, Seki, Japan, and colleagues wrote. Advantages of the patch include the ability to provide stable blood concentrations and the ability to be concealed under clothing to avoid patients’ embarrassment at taking oral medications.

In a study published in Progress in Neuropsychopharmacology & Biological Psychiatry, the researchers identified 155 adults aged 18 years and older diagnosed with schizophrenia who were treated at 37 medical institutions in Japan between February 2015 and May 2017.

The first cohort of 97 patients received blonanserin tablets (8-16 mg/day) for 6 weeks, followed by blonanserin transdermal patches (40-80 mg/day) once daily for 1 year. The second cohort of 58 patients received continuous blonanserin patch therapy. Extrapyramidal symptoms were assessed using the Drug-Induced Extrapyramidal Symptoms Scale (DIEPSS); individual scores ranged from a 0 for normal to a 4 for severe.

Overall, DIEPSS scores decreased significantly in both cohorts after switching from blonanserin tablets or powders to transdermal patches. The average DIEPSS change from baseline at 3, 6, and 12 months was –0.44, –0.07, and –0.14, respectively, in cohort 1, and –0.16, –0.74, and –0.81, respectively, in cohort 2.

The researchers also assessed the impact of transition to transdermal patches on the use of antiparkinsonism drugs using the biperiden equivalents of total antiparkinsonian drugs (BPD-eq) measure. At baseline, about 22% of patients used concomitant antiparkinsonism drugs, compared with 25.8% at 1 year after starting patch treatment. The dose of antiparkinson drugs was not significantly decreased after switching to transdermal patches, in part because of psychiatrists’ prescribing behaviors, Dr. Ohi and colleagues noted.

As a secondary outcome, the researchers examined psychotic symptoms and found that Positive and Negative Syndrome Scale (PANSS) negative symptom scores decreased significantly in patients in cohort 1 who switched from tablets or powders to patches. Changes in scores from baseline to 3, 6, and 12 months were –0.7, –1.0, and –1.3, respectively. Positive PANSS scores did not change significantly in cohort 1. In cohort 2, both positive and negative PANSS scores decreased significantly over 12 months after switching from blonanserin tablets/powders to patches. The mean changes in scores from baseline to 3, 6, and 12 months were –1.6, –2.3, and –2.4, respectively, for PANSS positive symptom scores, and –1.4, –2.7, and –2.8, respectively, for negative symptom scores.

A total of 41.2% of cohort 1 patients and 44.8% of cohort 2 patients discontinued patch treatments by 1 year. Four patients discontinued the patch because of EPS during the treatment period in cohort 1; no patients in cohort 2 discontinued because of EPS.

The study findings were limited by several factors, including the open-label design and lack of controls; also, the study did not examine crossover changes in patients who switched from tablets or powders to patches, the researchers noted.

However, the results indicate that direct switching from blonanserin tablets or powders to transdermal patches reduced EPS and psychotic symptoms in schizophrenia and may be more acceptable to patients, compared with oral medications, as well as more effective, they concluded.

The study received no outside funding, and Dr. Ohi and colleagues had no disclosures.

Use of a transdermal blonanserin patch significantly improved extrapyramidal symptoms (EPS), compared with oral blonanserin tablets in patients with schizophrenia, according to results of an open-label study of 155 adults.

Blonanserin, a second-generation antipsychotic, has been shown to reduce extrapyramidal symptoms when used to treat schizophrenia, but the impact of switching to a patch on extrapyramidal symptoms and on the use of antiparkinson drugs has not been well studied, Kazutaka Ohi, MD, of Gifu University Graduate School of Medicine, Seki, Japan, and colleagues wrote. Advantages of the patch include the ability to provide stable blood concentrations and the ability to be concealed under clothing to avoid patients’ embarrassment at taking oral medications.

In a study published in Progress in Neuropsychopharmacology & Biological Psychiatry, the researchers identified 155 adults aged 18 years and older diagnosed with schizophrenia who were treated at 37 medical institutions in Japan between February 2015 and May 2017.

The first cohort of 97 patients received blonanserin tablets (8-16 mg/day) for 6 weeks, followed by blonanserin transdermal patches (40-80 mg/day) once daily for 1 year. The second cohort of 58 patients received continuous blonanserin patch therapy. Extrapyramidal symptoms were assessed using the Drug-Induced Extrapyramidal Symptoms Scale (DIEPSS); individual scores ranged from a 0 for normal to a 4 for severe.

Overall, DIEPSS scores decreased significantly in both cohorts after switching from blonanserin tablets or powders to transdermal patches. The average DIEPSS change from baseline at 3, 6, and 12 months was –0.44, –0.07, and –0.14, respectively, in cohort 1, and –0.16, –0.74, and –0.81, respectively, in cohort 2.

The researchers also assessed the impact of transition to transdermal patches on the use of antiparkinsonism drugs using the biperiden equivalents of total antiparkinsonian drugs (BPD-eq) measure. At baseline, about 22% of patients used concomitant antiparkinsonism drugs, compared with 25.8% at 1 year after starting patch treatment. The dose of antiparkinson drugs was not significantly decreased after switching to transdermal patches, in part because of psychiatrists’ prescribing behaviors, Dr. Ohi and colleagues noted.

As a secondary outcome, the researchers examined psychotic symptoms and found that Positive and Negative Syndrome Scale (PANSS) negative symptom scores decreased significantly in patients in cohort 1 who switched from tablets or powders to patches. Changes in scores from baseline to 3, 6, and 12 months were –0.7, –1.0, and –1.3, respectively. Positive PANSS scores did not change significantly in cohort 1. In cohort 2, both positive and negative PANSS scores decreased significantly over 12 months after switching from blonanserin tablets/powders to patches. The mean changes in scores from baseline to 3, 6, and 12 months were –1.6, –2.3, and –2.4, respectively, for PANSS positive symptom scores, and –1.4, –2.7, and –2.8, respectively, for negative symptom scores.

A total of 41.2% of cohort 1 patients and 44.8% of cohort 2 patients discontinued patch treatments by 1 year. Four patients discontinued the patch because of EPS during the treatment period in cohort 1; no patients in cohort 2 discontinued because of EPS.

The study findings were limited by several factors, including the open-label design and lack of controls; also, the study did not examine crossover changes in patients who switched from tablets or powders to patches, the researchers noted.

However, the results indicate that direct switching from blonanserin tablets or powders to transdermal patches reduced EPS and psychotic symptoms in schizophrenia and may be more acceptable to patients, compared with oral medications, as well as more effective, they concluded.

The study received no outside funding, and Dr. Ohi and colleagues had no disclosures.