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Both Promise and Concern for OSA and CPAP with GLP-1s
Will the weight reduction success with glucagon-like peptide-1 (GLP-1) agonists translate into strong reductions in obstructive sleep apnea (OSA)? Will those potential OSA benefits obviate the need in many for continuous positive airway pressure (CPAP)?
“I think it’s a game changer for helping people who are overweight or obese,” Samuel T. Kuna, MD, chief of sleep medicine at the Corporal Michael J. Crescenz VA Medical Center in Philadelphia, said in an interview with CHEST Physician. “I think we’re just starting out on a very exciting new era. We finally have quite effective treatments for this population.” Dr. Kuna’s Sleep AHEAD (Action for Health in Diabetes) 2021 study (doi: 10.1164/rccm.201912-2511OC) found that participants with OSA and type 2 diabetes mellitus receiving intensive lifestyle interventions for weight loss had reduced OSA severity at 10 years, and that OSA remission at 10 years was more common with intensive lifestyle intervention than with diabetes support and education.
Potential for OSA impact
In a JAMA Network Open/Pulmonary Medicine article on a 2022 study (doi: 10.1001/jamanetworkopen.2022.8212) conducted among 89 Spanish male adults with moderate to severe OSA and body mass index of 25 or greater, participants received CPAP therapy with or without 8 weeks of weight loss and lifestyle intervention. The primary endpoint of apnea-hypopnea index at 6 months showed the intervention to yield “clinically meaningful and sustainable improvements in OSA.”
Dr. Kuna stated, “I don’t think these [weight loss] agents eliminate the importance of behavioral modification, of changing diet, of reducing highly processed foods and maintaining a healthy lifestyle.” He acknowledged, however, that behavioral endeavors have been in general disappointing with respect to patients’ ability to achieve weight loss. “These medicines really open up a new strategy to help patients do that,” he added.
Dr. Kuna pointed to a recent (2023) Grunstein et al. perspective article (doi: 10.1093/sleep/zsad224) published in Sleep citing phase 3 trial results showing placebo-subtracted weight loss percentages. With subcutaneous (SC) semaglutide 2.4 mg they were 12.6% in patients with obesity or overweight with one or more weight-related comorbidities (but not type 2 diabetes), and 17.8% with tirzepatide (15 mg, SC, weekly), a combination GLP-1 agonist and glucose-dependent insulinotropic polypeptide agonist, in a similar population. The authors stated, “These new agents, provided they are available to persons who need them most — who are often socioeconomically disadvantaged — could revolutionize the management of obesity and its many complications, including OSA.” Grunstein et al. also, noted that the number of studies showing improvement in cardiometabolic outcomes (eg, blood pressure) with pre-incretin OSA therapies are “minimal.” They underscored, however, the need for risk/benefit/cost-effectiveness data on incretin therapies, and cited evidence that withdrawal from incretin treatment brings back weight gain and adverse cardiometabolic factors. They also indicated key areas of uncertainty requiring research: gender-based response differences to incretins (women predominate in most weight loss studies, but OSA is more common in men), how CPAP users will adapt to incretin OSA benefits, direct comparisons of impact on OSA with incretins vs mechanical therapy, and understanding which target populations derive the most benefit with incretin therapies.
Despite the unanswered questions, the direction was unequivocally clear for Grunstein et al.: “Ultimately, the focus must shift away from mechanical therapy for obesity-related OSA towards weight loss, the latter which is likely to produce multiple health outcome improvements that are superior, including all-cause mortality.”
Dr. Kuna agreed with the Sleep article authors that one implication of this “incretin revolution” is that sleep physicians will have to broaden their skills to encompass obesity management. “As the field evolves, perhaps we should start training our fellows about how to manage these patients,” Dr. Kuna said.
Significant impact on OSA and CPAP
“Obesity is a risk factor for sleep apnea,” stated Saadia A. Faiz, MD, FCCP, professor, Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, “so with increased use of these GLP-1 agents for weight reduction, we would anticipate a significant impact on both OSA severity and need for CPAP.” Speaking in a CHEST Physician interview and referring to the Kuna et al. study, she stated, “Since cessation of the drug can lead to rebound weight gain, the emphasis on healthy eating and exercise is crucial to management.” Dr. Faiz said further, “It’s important to note that there are other weight-independent mechanisms for OSA, including upper airway anatomy, mechanisms that modulate upper airway stability, chemoreceptor sensitivity, visceral adiposity, neuroendocrine control, sleep quality, and other aspects of OSA pathophysiology yet to be discovered.”
Cost an obstacle for some
“For many insurances, criteria for coverage include obesity and prediabetes based on HbA1c. For some not meeting requirements, they will have to pay out of pocket,” Dr. Faiz said. She pointed to a Respirology (doi: 10.1111/resp.14545) commentary in which Garun S. Hamilton, MBBS, PhD, and Bradley A. Edwards, PhD, underscored the nearly 1 billion people worldwide with OSA, most of whom are overweight or obese. “GLP-1 agonists are so effective that they have become a worldwide phenomenon. The high cost of the medications combined with the high prevalence of OSA means that there is no way that universal healthcare funding schemes can afford these medications, unless strict criteria are in place to prioritize those who can gain subsidized access and/or a duration of use limit is in place,” they stated. “This will no doubt exacerbate inequities in healthcare access and outcome between those from lower versus higher socioeconomic populations, as the attributable benefit from GLP-1 agonists is likely to be dependent on a patient’s ability to afford them.”
Beyond health equity concerns
The evidence for clinically relevant reductions in weight and resultant lowering of other adverse risk factors supports a wide embrace of Ozempic-type drugs. Standing alongside, however, are the cautionary pleas of nutrition/lifestyle-focused health advocates. They urge that prescriptions for nonpharmacological strategies that promote better sleep, healthier food choices, and more exercise need sharper highlighting and strong incentivizing.
Dr. Faiz said, “The availability and consumption of ultra-processed foods can impact food intake and weight. Specifically, in a small study of 20 inpatient adults admitted to the NIH Clinical Center randomized to either ultra-processed or unprocessed diets for 14 days, increased caloric intake and weight gain were found in the ultra-processed cohort.” In the study Dr. Faiz cited (doi: 10.1016/j.cmet.2019.05.008), meals were matched for calories, energy density, macronutrients, sugar, sodium, and fiber. Subjects were instructed to consume as much or as little as desired. Analysis showed a 4-pound weight difference between groups within 2 weeks: The ultra-processed cohort had taken in an extra 500 calories a day and had gained weight (0.9 ± 0.3 kg [P = .009]) and body fat while the unprocessed food group lost weight (0.9 ± 0.3 kg [P = .007]) and body fat.
“Thus, the type of foods we opt for can also have significant impact,” Dr. Faiz stated.
Dr. Faiz and Dr. Kuna said they had no conflicts of interest to disclose.
Will the weight reduction success with glucagon-like peptide-1 (GLP-1) agonists translate into strong reductions in obstructive sleep apnea (OSA)? Will those potential OSA benefits obviate the need in many for continuous positive airway pressure (CPAP)?
“I think it’s a game changer for helping people who are overweight or obese,” Samuel T. Kuna, MD, chief of sleep medicine at the Corporal Michael J. Crescenz VA Medical Center in Philadelphia, said in an interview with CHEST Physician. “I think we’re just starting out on a very exciting new era. We finally have quite effective treatments for this population.” Dr. Kuna’s Sleep AHEAD (Action for Health in Diabetes) 2021 study (doi: 10.1164/rccm.201912-2511OC) found that participants with OSA and type 2 diabetes mellitus receiving intensive lifestyle interventions for weight loss had reduced OSA severity at 10 years, and that OSA remission at 10 years was more common with intensive lifestyle intervention than with diabetes support and education.
Potential for OSA impact
In a JAMA Network Open/Pulmonary Medicine article on a 2022 study (doi: 10.1001/jamanetworkopen.2022.8212) conducted among 89 Spanish male adults with moderate to severe OSA and body mass index of 25 or greater, participants received CPAP therapy with or without 8 weeks of weight loss and lifestyle intervention. The primary endpoint of apnea-hypopnea index at 6 months showed the intervention to yield “clinically meaningful and sustainable improvements in OSA.”
Dr. Kuna stated, “I don’t think these [weight loss] agents eliminate the importance of behavioral modification, of changing diet, of reducing highly processed foods and maintaining a healthy lifestyle.” He acknowledged, however, that behavioral endeavors have been in general disappointing with respect to patients’ ability to achieve weight loss. “These medicines really open up a new strategy to help patients do that,” he added.
Dr. Kuna pointed to a recent (2023) Grunstein et al. perspective article (doi: 10.1093/sleep/zsad224) published in Sleep citing phase 3 trial results showing placebo-subtracted weight loss percentages. With subcutaneous (SC) semaglutide 2.4 mg they were 12.6% in patients with obesity or overweight with one or more weight-related comorbidities (but not type 2 diabetes), and 17.8% with tirzepatide (15 mg, SC, weekly), a combination GLP-1 agonist and glucose-dependent insulinotropic polypeptide agonist, in a similar population. The authors stated, “These new agents, provided they are available to persons who need them most — who are often socioeconomically disadvantaged — could revolutionize the management of obesity and its many complications, including OSA.” Grunstein et al. also, noted that the number of studies showing improvement in cardiometabolic outcomes (eg, blood pressure) with pre-incretin OSA therapies are “minimal.” They underscored, however, the need for risk/benefit/cost-effectiveness data on incretin therapies, and cited evidence that withdrawal from incretin treatment brings back weight gain and adverse cardiometabolic factors. They also indicated key areas of uncertainty requiring research: gender-based response differences to incretins (women predominate in most weight loss studies, but OSA is more common in men), how CPAP users will adapt to incretin OSA benefits, direct comparisons of impact on OSA with incretins vs mechanical therapy, and understanding which target populations derive the most benefit with incretin therapies.
Despite the unanswered questions, the direction was unequivocally clear for Grunstein et al.: “Ultimately, the focus must shift away from mechanical therapy for obesity-related OSA towards weight loss, the latter which is likely to produce multiple health outcome improvements that are superior, including all-cause mortality.”
Dr. Kuna agreed with the Sleep article authors that one implication of this “incretin revolution” is that sleep physicians will have to broaden their skills to encompass obesity management. “As the field evolves, perhaps we should start training our fellows about how to manage these patients,” Dr. Kuna said.
Significant impact on OSA and CPAP
“Obesity is a risk factor for sleep apnea,” stated Saadia A. Faiz, MD, FCCP, professor, Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, “so with increased use of these GLP-1 agents for weight reduction, we would anticipate a significant impact on both OSA severity and need for CPAP.” Speaking in a CHEST Physician interview and referring to the Kuna et al. study, she stated, “Since cessation of the drug can lead to rebound weight gain, the emphasis on healthy eating and exercise is crucial to management.” Dr. Faiz said further, “It’s important to note that there are other weight-independent mechanisms for OSA, including upper airway anatomy, mechanisms that modulate upper airway stability, chemoreceptor sensitivity, visceral adiposity, neuroendocrine control, sleep quality, and other aspects of OSA pathophysiology yet to be discovered.”
Cost an obstacle for some
“For many insurances, criteria for coverage include obesity and prediabetes based on HbA1c. For some not meeting requirements, they will have to pay out of pocket,” Dr. Faiz said. She pointed to a Respirology (doi: 10.1111/resp.14545) commentary in which Garun S. Hamilton, MBBS, PhD, and Bradley A. Edwards, PhD, underscored the nearly 1 billion people worldwide with OSA, most of whom are overweight or obese. “GLP-1 agonists are so effective that they have become a worldwide phenomenon. The high cost of the medications combined with the high prevalence of OSA means that there is no way that universal healthcare funding schemes can afford these medications, unless strict criteria are in place to prioritize those who can gain subsidized access and/or a duration of use limit is in place,” they stated. “This will no doubt exacerbate inequities in healthcare access and outcome between those from lower versus higher socioeconomic populations, as the attributable benefit from GLP-1 agonists is likely to be dependent on a patient’s ability to afford them.”
Beyond health equity concerns
The evidence for clinically relevant reductions in weight and resultant lowering of other adverse risk factors supports a wide embrace of Ozempic-type drugs. Standing alongside, however, are the cautionary pleas of nutrition/lifestyle-focused health advocates. They urge that prescriptions for nonpharmacological strategies that promote better sleep, healthier food choices, and more exercise need sharper highlighting and strong incentivizing.
Dr. Faiz said, “The availability and consumption of ultra-processed foods can impact food intake and weight. Specifically, in a small study of 20 inpatient adults admitted to the NIH Clinical Center randomized to either ultra-processed or unprocessed diets for 14 days, increased caloric intake and weight gain were found in the ultra-processed cohort.” In the study Dr. Faiz cited (doi: 10.1016/j.cmet.2019.05.008), meals were matched for calories, energy density, macronutrients, sugar, sodium, and fiber. Subjects were instructed to consume as much or as little as desired. Analysis showed a 4-pound weight difference between groups within 2 weeks: The ultra-processed cohort had taken in an extra 500 calories a day and had gained weight (0.9 ± 0.3 kg [P = .009]) and body fat while the unprocessed food group lost weight (0.9 ± 0.3 kg [P = .007]) and body fat.
“Thus, the type of foods we opt for can also have significant impact,” Dr. Faiz stated.
Dr. Faiz and Dr. Kuna said they had no conflicts of interest to disclose.
Will the weight reduction success with glucagon-like peptide-1 (GLP-1) agonists translate into strong reductions in obstructive sleep apnea (OSA)? Will those potential OSA benefits obviate the need in many for continuous positive airway pressure (CPAP)?
“I think it’s a game changer for helping people who are overweight or obese,” Samuel T. Kuna, MD, chief of sleep medicine at the Corporal Michael J. Crescenz VA Medical Center in Philadelphia, said in an interview with CHEST Physician. “I think we’re just starting out on a very exciting new era. We finally have quite effective treatments for this population.” Dr. Kuna’s Sleep AHEAD (Action for Health in Diabetes) 2021 study (doi: 10.1164/rccm.201912-2511OC) found that participants with OSA and type 2 diabetes mellitus receiving intensive lifestyle interventions for weight loss had reduced OSA severity at 10 years, and that OSA remission at 10 years was more common with intensive lifestyle intervention than with diabetes support and education.
Potential for OSA impact
In a JAMA Network Open/Pulmonary Medicine article on a 2022 study (doi: 10.1001/jamanetworkopen.2022.8212) conducted among 89 Spanish male adults with moderate to severe OSA and body mass index of 25 or greater, participants received CPAP therapy with or without 8 weeks of weight loss and lifestyle intervention. The primary endpoint of apnea-hypopnea index at 6 months showed the intervention to yield “clinically meaningful and sustainable improvements in OSA.”
Dr. Kuna stated, “I don’t think these [weight loss] agents eliminate the importance of behavioral modification, of changing diet, of reducing highly processed foods and maintaining a healthy lifestyle.” He acknowledged, however, that behavioral endeavors have been in general disappointing with respect to patients’ ability to achieve weight loss. “These medicines really open up a new strategy to help patients do that,” he added.
Dr. Kuna pointed to a recent (2023) Grunstein et al. perspective article (doi: 10.1093/sleep/zsad224) published in Sleep citing phase 3 trial results showing placebo-subtracted weight loss percentages. With subcutaneous (SC) semaglutide 2.4 mg they were 12.6% in patients with obesity or overweight with one or more weight-related comorbidities (but not type 2 diabetes), and 17.8% with tirzepatide (15 mg, SC, weekly), a combination GLP-1 agonist and glucose-dependent insulinotropic polypeptide agonist, in a similar population. The authors stated, “These new agents, provided they are available to persons who need them most — who are often socioeconomically disadvantaged — could revolutionize the management of obesity and its many complications, including OSA.” Grunstein et al. also, noted that the number of studies showing improvement in cardiometabolic outcomes (eg, blood pressure) with pre-incretin OSA therapies are “minimal.” They underscored, however, the need for risk/benefit/cost-effectiveness data on incretin therapies, and cited evidence that withdrawal from incretin treatment brings back weight gain and adverse cardiometabolic factors. They also indicated key areas of uncertainty requiring research: gender-based response differences to incretins (women predominate in most weight loss studies, but OSA is more common in men), how CPAP users will adapt to incretin OSA benefits, direct comparisons of impact on OSA with incretins vs mechanical therapy, and understanding which target populations derive the most benefit with incretin therapies.
Despite the unanswered questions, the direction was unequivocally clear for Grunstein et al.: “Ultimately, the focus must shift away from mechanical therapy for obesity-related OSA towards weight loss, the latter which is likely to produce multiple health outcome improvements that are superior, including all-cause mortality.”
Dr. Kuna agreed with the Sleep article authors that one implication of this “incretin revolution” is that sleep physicians will have to broaden their skills to encompass obesity management. “As the field evolves, perhaps we should start training our fellows about how to manage these patients,” Dr. Kuna said.
Significant impact on OSA and CPAP
“Obesity is a risk factor for sleep apnea,” stated Saadia A. Faiz, MD, FCCP, professor, Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, “so with increased use of these GLP-1 agents for weight reduction, we would anticipate a significant impact on both OSA severity and need for CPAP.” Speaking in a CHEST Physician interview and referring to the Kuna et al. study, she stated, “Since cessation of the drug can lead to rebound weight gain, the emphasis on healthy eating and exercise is crucial to management.” Dr. Faiz said further, “It’s important to note that there are other weight-independent mechanisms for OSA, including upper airway anatomy, mechanisms that modulate upper airway stability, chemoreceptor sensitivity, visceral adiposity, neuroendocrine control, sleep quality, and other aspects of OSA pathophysiology yet to be discovered.”
Cost an obstacle for some
“For many insurances, criteria for coverage include obesity and prediabetes based on HbA1c. For some not meeting requirements, they will have to pay out of pocket,” Dr. Faiz said. She pointed to a Respirology (doi: 10.1111/resp.14545) commentary in which Garun S. Hamilton, MBBS, PhD, and Bradley A. Edwards, PhD, underscored the nearly 1 billion people worldwide with OSA, most of whom are overweight or obese. “GLP-1 agonists are so effective that they have become a worldwide phenomenon. The high cost of the medications combined with the high prevalence of OSA means that there is no way that universal healthcare funding schemes can afford these medications, unless strict criteria are in place to prioritize those who can gain subsidized access and/or a duration of use limit is in place,” they stated. “This will no doubt exacerbate inequities in healthcare access and outcome between those from lower versus higher socioeconomic populations, as the attributable benefit from GLP-1 agonists is likely to be dependent on a patient’s ability to afford them.”
Beyond health equity concerns
The evidence for clinically relevant reductions in weight and resultant lowering of other adverse risk factors supports a wide embrace of Ozempic-type drugs. Standing alongside, however, are the cautionary pleas of nutrition/lifestyle-focused health advocates. They urge that prescriptions for nonpharmacological strategies that promote better sleep, healthier food choices, and more exercise need sharper highlighting and strong incentivizing.
Dr. Faiz said, “The availability and consumption of ultra-processed foods can impact food intake and weight. Specifically, in a small study of 20 inpatient adults admitted to the NIH Clinical Center randomized to either ultra-processed or unprocessed diets for 14 days, increased caloric intake and weight gain were found in the ultra-processed cohort.” In the study Dr. Faiz cited (doi: 10.1016/j.cmet.2019.05.008), meals were matched for calories, energy density, macronutrients, sugar, sodium, and fiber. Subjects were instructed to consume as much or as little as desired. Analysis showed a 4-pound weight difference between groups within 2 weeks: The ultra-processed cohort had taken in an extra 500 calories a day and had gained weight (0.9 ± 0.3 kg [P = .009]) and body fat while the unprocessed food group lost weight (0.9 ± 0.3 kg [P = .007]) and body fat.
“Thus, the type of foods we opt for can also have significant impact,” Dr. Faiz stated.
Dr. Faiz and Dr. Kuna said they had no conflicts of interest to disclose.
Eli Lilly to Ask FDA to Approve Weight Loss Drug for Sleep Apnea
Results from a preliminary clinical trial demonstrated the obesity drug, tirzepatide, effectively treated obstructive sleep apnea (OSA), according to information sent to investors of the pharmaceutical company, Eli Lilly.
Indiana-based Eli Lilly sells tirzepatide under the brand name Zepbound, which was approved by the FDA in November to treat overweight and obesity. Tirzepatide is also marketed under the name Mounjaro to treat diabetes, and it’s among the same class of drugs as other well-known weight loss and diabetes drugs like Ozempic and Wegovy.
The newly announced results came from a pair of studies that followed people with moderate to severe OSA who also had obesity. People in the study took tirzepatide, which is given by injection, for one year. About 70% of people in the studies were men.
The findings have not yet been published in a peer-reviewed medical journal, and the preliminary results were announced by Eli Lilly because of reporting requirements related to information that could affect stock prices. The company indicated that detailed results will be presented at a conference of the American Diabetes Association in June and will be submitted to a peer-reviewed journal for consideration of publication. The company also plans to submit the information to the FDA for approval consideration mid-year, the investor news release stated.
People in the study taking tirzepatide on average experienced 63% fewer instances of reduced oxygen due to breathing changes, or events when breathing entirely stopped, Eli Lilly reported.
A sleep expert from Washington University in St. Louis told The New York Times the initial findings were extremely positive and noted that tirzepatide works to treat the underlying cause of sleep apnea, rather than current treatments that just address symptoms.
Tirzepatide “is a great alternative for people who are obese and can’t use CPAP or are on CPAP and want to improve the effect,” Eric Landsness, MD, PhD, told The New York Times.
Eli Lilly indicated the most commonly reported adverse events in the studies were diarrhea, nausea, vomiting, and constipation.
An estimated 39 million people have OSA and about 33 million people use CPAP machines, according to The National Council on Aging. The condition has been increasingly diagnosed in recent years and becomes more likely to affect people as they get older.
A version of this article appeared on WebMD.com.
Results from a preliminary clinical trial demonstrated the obesity drug, tirzepatide, effectively treated obstructive sleep apnea (OSA), according to information sent to investors of the pharmaceutical company, Eli Lilly.
Indiana-based Eli Lilly sells tirzepatide under the brand name Zepbound, which was approved by the FDA in November to treat overweight and obesity. Tirzepatide is also marketed under the name Mounjaro to treat diabetes, and it’s among the same class of drugs as other well-known weight loss and diabetes drugs like Ozempic and Wegovy.
The newly announced results came from a pair of studies that followed people with moderate to severe OSA who also had obesity. People in the study took tirzepatide, which is given by injection, for one year. About 70% of people in the studies were men.
The findings have not yet been published in a peer-reviewed medical journal, and the preliminary results were announced by Eli Lilly because of reporting requirements related to information that could affect stock prices. The company indicated that detailed results will be presented at a conference of the American Diabetes Association in June and will be submitted to a peer-reviewed journal for consideration of publication. The company also plans to submit the information to the FDA for approval consideration mid-year, the investor news release stated.
People in the study taking tirzepatide on average experienced 63% fewer instances of reduced oxygen due to breathing changes, or events when breathing entirely stopped, Eli Lilly reported.
A sleep expert from Washington University in St. Louis told The New York Times the initial findings were extremely positive and noted that tirzepatide works to treat the underlying cause of sleep apnea, rather than current treatments that just address symptoms.
Tirzepatide “is a great alternative for people who are obese and can’t use CPAP or are on CPAP and want to improve the effect,” Eric Landsness, MD, PhD, told The New York Times.
Eli Lilly indicated the most commonly reported adverse events in the studies were diarrhea, nausea, vomiting, and constipation.
An estimated 39 million people have OSA and about 33 million people use CPAP machines, according to The National Council on Aging. The condition has been increasingly diagnosed in recent years and becomes more likely to affect people as they get older.
A version of this article appeared on WebMD.com.
Results from a preliminary clinical trial demonstrated the obesity drug, tirzepatide, effectively treated obstructive sleep apnea (OSA), according to information sent to investors of the pharmaceutical company, Eli Lilly.
Indiana-based Eli Lilly sells tirzepatide under the brand name Zepbound, which was approved by the FDA in November to treat overweight and obesity. Tirzepatide is also marketed under the name Mounjaro to treat diabetes, and it’s among the same class of drugs as other well-known weight loss and diabetes drugs like Ozempic and Wegovy.
The newly announced results came from a pair of studies that followed people with moderate to severe OSA who also had obesity. People in the study took tirzepatide, which is given by injection, for one year. About 70% of people in the studies were men.
The findings have not yet been published in a peer-reviewed medical journal, and the preliminary results were announced by Eli Lilly because of reporting requirements related to information that could affect stock prices. The company indicated that detailed results will be presented at a conference of the American Diabetes Association in June and will be submitted to a peer-reviewed journal for consideration of publication. The company also plans to submit the information to the FDA for approval consideration mid-year, the investor news release stated.
People in the study taking tirzepatide on average experienced 63% fewer instances of reduced oxygen due to breathing changes, or events when breathing entirely stopped, Eli Lilly reported.
A sleep expert from Washington University in St. Louis told The New York Times the initial findings were extremely positive and noted that tirzepatide works to treat the underlying cause of sleep apnea, rather than current treatments that just address symptoms.
Tirzepatide “is a great alternative for people who are obese and can’t use CPAP or are on CPAP and want to improve the effect,” Eric Landsness, MD, PhD, told The New York Times.
Eli Lilly indicated the most commonly reported adverse events in the studies were diarrhea, nausea, vomiting, and constipation.
An estimated 39 million people have OSA and about 33 million people use CPAP machines, according to The National Council on Aging. The condition has been increasingly diagnosed in recent years and becomes more likely to affect people as they get older.
A version of this article appeared on WebMD.com.
Early Evidence Supports Ketogenic Diet for Mental Illness
The ketogenic diet shows promise in reducing the symptoms of bipolar disorder and schizophrenia and reversing metabolic syndrome, results of a new pilot study show.
Participants who adhered to the high-fat, low-carb diet experienced a 30% reduction in psychiatric symptoms and an average 10% reduction in weight.
“We’re seeing huge changes,” first author Shebani Sethi, MD, of Stanford University in Stanford, California said in a press release. “Even if you’re on antipsychotic drugs, we can still reverse the obesity, the metabolic syndrome, and the insulin resistance. I think that’s very encouraging for patients.”
The findings were published online in Psychiatric Research.
Neuroprotective Effect?
The pilot study included 21 participants with schizophrenia (n = 5) or bipolar disorder (n = 16) who were aged 18-75 years. All were currently taking psychotropic medications. Participants were overweight (body mass index [BMI] ≥ 25) and had gained more than 5% of their body mass while taking psychotropic medication, or they had at least one metabolic abnormality, such as insulin resistance or dyslipidemia.
At baseline, participants received a physical and psychiatric evaluation and 1 hour of instruction on how to implement the keto diet, which included 10% carbohydrate, 30% protein, and 60% fat.
Investigators monitored blood ketone levels at least once a week and defined participants as keto-adherent if their levels were 0.5-5 mM for 80%-100% of the times they were measured.
Health coaches checked in with participants for about 5-10 minutes each week to answer diet-related questions.
Psychiatric assessments, which included mood rating and global functioning scales, were completed at baseline, 2 months, and at the end of the 4-month study.
The research team tracked participants’ adherence to the diet by weekly measurement of blood ketone levels.
By the end of the trial, 14 patients had been fully adherent with the diet, six had been semi-adherent, and only one had been nonadherent. Higher ketone levels, suggesting greater adherence, correlated with better metabolic health.
As measured by the Clinical Global Impression-Schizophrenia and Clinical Global Impression for Bipolar Disorder–Overall Severity, participants experienced a 31% reduction in symptom severity (P < .001). Overall, 43% (P < .02) of participants achieved recovery as defined by the Clinical Mood Monitoring Form criteria: 50% of the adherent group and 33% of those who were semi-adherent.
Metabolic Benefits
Initially, 29% of participants had metabolic syndrome and more than 85% had co-occurring medical conditions such as obesity, hyperlipidemia, or prediabetes. By the end of the study, none met criteria for metabolic syndrome.
On average, participants experienced a 10% reduction in weight and BMI. Waist circumference was reduced by 11%, fat mass index dropped by 17%, and systolic blood pressure decreased by 6%. In addition, metabolic markers including visceral fat, inflammation, A1c, and insulin resistance also improved. All outcomes were significant at P < .001 except for systolic blood pressure, at P < .005.
There was also a 20% reduction in triglycerides and a 21% increase in low-density lipoprotein cholesterol (both at P < .02).
The study’s limitations include its small sample size, the lack of control arm, and short duration.
“Mental health and physical health are interconnected and addressing metabolic issues can complement psychiatric treatment to enhance overall well-being. Understanding the
mechanisms and potential synergies between psychiatric treatment and metabolic improvements can also inform the development of more effective interventions,” the researchers wrote.
The study was funded by the Baszucki Group, Kuen Lau Fund, and the Obesity Treatment Foundation. The authors declare no competing interests.
A version of this article appeared on Medscape.com.
The ketogenic diet shows promise in reducing the symptoms of bipolar disorder and schizophrenia and reversing metabolic syndrome, results of a new pilot study show.
Participants who adhered to the high-fat, low-carb diet experienced a 30% reduction in psychiatric symptoms and an average 10% reduction in weight.
“We’re seeing huge changes,” first author Shebani Sethi, MD, of Stanford University in Stanford, California said in a press release. “Even if you’re on antipsychotic drugs, we can still reverse the obesity, the metabolic syndrome, and the insulin resistance. I think that’s very encouraging for patients.”
The findings were published online in Psychiatric Research.
Neuroprotective Effect?
The pilot study included 21 participants with schizophrenia (n = 5) or bipolar disorder (n = 16) who were aged 18-75 years. All were currently taking psychotropic medications. Participants were overweight (body mass index [BMI] ≥ 25) and had gained more than 5% of their body mass while taking psychotropic medication, or they had at least one metabolic abnormality, such as insulin resistance or dyslipidemia.
At baseline, participants received a physical and psychiatric evaluation and 1 hour of instruction on how to implement the keto diet, which included 10% carbohydrate, 30% protein, and 60% fat.
Investigators monitored blood ketone levels at least once a week and defined participants as keto-adherent if their levels were 0.5-5 mM for 80%-100% of the times they were measured.
Health coaches checked in with participants for about 5-10 minutes each week to answer diet-related questions.
Psychiatric assessments, which included mood rating and global functioning scales, were completed at baseline, 2 months, and at the end of the 4-month study.
The research team tracked participants’ adherence to the diet by weekly measurement of blood ketone levels.
By the end of the trial, 14 patients had been fully adherent with the diet, six had been semi-adherent, and only one had been nonadherent. Higher ketone levels, suggesting greater adherence, correlated with better metabolic health.
As measured by the Clinical Global Impression-Schizophrenia and Clinical Global Impression for Bipolar Disorder–Overall Severity, participants experienced a 31% reduction in symptom severity (P < .001). Overall, 43% (P < .02) of participants achieved recovery as defined by the Clinical Mood Monitoring Form criteria: 50% of the adherent group and 33% of those who were semi-adherent.
Metabolic Benefits
Initially, 29% of participants had metabolic syndrome and more than 85% had co-occurring medical conditions such as obesity, hyperlipidemia, or prediabetes. By the end of the study, none met criteria for metabolic syndrome.
On average, participants experienced a 10% reduction in weight and BMI. Waist circumference was reduced by 11%, fat mass index dropped by 17%, and systolic blood pressure decreased by 6%. In addition, metabolic markers including visceral fat, inflammation, A1c, and insulin resistance also improved. All outcomes were significant at P < .001 except for systolic blood pressure, at P < .005.
There was also a 20% reduction in triglycerides and a 21% increase in low-density lipoprotein cholesterol (both at P < .02).
The study’s limitations include its small sample size, the lack of control arm, and short duration.
“Mental health and physical health are interconnected and addressing metabolic issues can complement psychiatric treatment to enhance overall well-being. Understanding the
mechanisms and potential synergies between psychiatric treatment and metabolic improvements can also inform the development of more effective interventions,” the researchers wrote.
The study was funded by the Baszucki Group, Kuen Lau Fund, and the Obesity Treatment Foundation. The authors declare no competing interests.
A version of this article appeared on Medscape.com.
The ketogenic diet shows promise in reducing the symptoms of bipolar disorder and schizophrenia and reversing metabolic syndrome, results of a new pilot study show.
Participants who adhered to the high-fat, low-carb diet experienced a 30% reduction in psychiatric symptoms and an average 10% reduction in weight.
“We’re seeing huge changes,” first author Shebani Sethi, MD, of Stanford University in Stanford, California said in a press release. “Even if you’re on antipsychotic drugs, we can still reverse the obesity, the metabolic syndrome, and the insulin resistance. I think that’s very encouraging for patients.”
The findings were published online in Psychiatric Research.
Neuroprotective Effect?
The pilot study included 21 participants with schizophrenia (n = 5) or bipolar disorder (n = 16) who were aged 18-75 years. All were currently taking psychotropic medications. Participants were overweight (body mass index [BMI] ≥ 25) and had gained more than 5% of their body mass while taking psychotropic medication, or they had at least one metabolic abnormality, such as insulin resistance or dyslipidemia.
At baseline, participants received a physical and psychiatric evaluation and 1 hour of instruction on how to implement the keto diet, which included 10% carbohydrate, 30% protein, and 60% fat.
Investigators monitored blood ketone levels at least once a week and defined participants as keto-adherent if their levels were 0.5-5 mM for 80%-100% of the times they were measured.
Health coaches checked in with participants for about 5-10 minutes each week to answer diet-related questions.
Psychiatric assessments, which included mood rating and global functioning scales, were completed at baseline, 2 months, and at the end of the 4-month study.
The research team tracked participants’ adherence to the diet by weekly measurement of blood ketone levels.
By the end of the trial, 14 patients had been fully adherent with the diet, six had been semi-adherent, and only one had been nonadherent. Higher ketone levels, suggesting greater adherence, correlated with better metabolic health.
As measured by the Clinical Global Impression-Schizophrenia and Clinical Global Impression for Bipolar Disorder–Overall Severity, participants experienced a 31% reduction in symptom severity (P < .001). Overall, 43% (P < .02) of participants achieved recovery as defined by the Clinical Mood Monitoring Form criteria: 50% of the adherent group and 33% of those who were semi-adherent.
Metabolic Benefits
Initially, 29% of participants had metabolic syndrome and more than 85% had co-occurring medical conditions such as obesity, hyperlipidemia, or prediabetes. By the end of the study, none met criteria for metabolic syndrome.
On average, participants experienced a 10% reduction in weight and BMI. Waist circumference was reduced by 11%, fat mass index dropped by 17%, and systolic blood pressure decreased by 6%. In addition, metabolic markers including visceral fat, inflammation, A1c, and insulin resistance also improved. All outcomes were significant at P < .001 except for systolic blood pressure, at P < .005.
There was also a 20% reduction in triglycerides and a 21% increase in low-density lipoprotein cholesterol (both at P < .02).
The study’s limitations include its small sample size, the lack of control arm, and short duration.
“Mental health and physical health are interconnected and addressing metabolic issues can complement psychiatric treatment to enhance overall well-being. Understanding the
mechanisms and potential synergies between psychiatric treatment and metabolic improvements can also inform the development of more effective interventions,” the researchers wrote.
The study was funded by the Baszucki Group, Kuen Lau Fund, and the Obesity Treatment Foundation. The authors declare no competing interests.
A version of this article appeared on Medscape.com.
FROM PSYCHIATRIC RESEARCH
Antipsychotics for Dementia Pose Wide-Ranging Health Risks
Antipsychotic use in older adults with dementia is associated with a significant increased risk for stroke, myocardial infarction, heart failure, pneumonia, fracture, acute kidney injury, and a range of other health problems compared with nonuse, new research showed.
The adverse events are far broader and pose more severe health risks than previously reported, investigators noted, and suggested greater caution is needed when prescribing antipsychotics to treat psychological symptoms of dementia.
The matched cohort study used patient registry data on nearly 174,000 people with dementia and compared those who were prescribed an antipsychotic on or after their dementia diagnosis with those who had not received a prescription for the drugs.
Any antipsychotic use was associated with double the risk for pneumonia, a 1.7-fold increased risk for acute kidney injury, and 1.6-fold higher odds of venous thromboembolism compared to nonuse.
Investigators found an increased risk for all outcomes studied, except for ventricular arrythmia, and risk was highest for most within the first week of treatment.
“Any potential benefits of antipsychotic treatment therefore need to be weighed against the risk of serious harm across multiple outcomes. Although there may be times when an antipsychotic prescription is the least bad option, clinicians should actively consider the risks, considering patients’ pre-existing comorbidities and living support,” lead investigator Pearl Mok, research fellow at the Centre for Pharmacoepidemiology and Drug Safety, The University of Manchester, Manchester, England, and colleagues wrote.
The findings were published online in The BMJ.
High Risk
Depression, aggression, anxiety, psychosis, and other behavioral and psychological symptoms are common in people with dementia. Despite earlier reports of increased risk for stroke and mortality with antipsychotic use, the drugs are frequently prescribed to treat these symptoms.
While some preliminary studies identified other adverse outcomes from antipsychotic use, results are limited and inconsistent.
Investigators used primary and secondary care data from the Clinical Practice Research Datalink in England. A total of 173,910 adults (63% women) had a dementia diagnosis between January 1998 and May 2018.
Of the total cohort, 35,339 patients were prescribed an antipsychotic on, or after, a dementia diagnosis. Each was matched with up to 15 patients with dementia with no history of antipsychotic use following diagnosis.
Almost 80% of antipsychotic prescriptions were for risperidone, quetiapine, haloperidol, and olanzapine.
Any antipsychotic use was associated with significantly higher risks for pneumonia (hazard ratio [HR], 2.03; 95% CI, 1.96-2.10), acute kidney injury (HR, 1.57; 95% CI, 1.48-1.66), stroke (HR, 1.54; 95% CI, 1.46-1.63), venous thromboembolism (HR, 1.52; 95% CI, 1.38-1.67), fracture (HR, 1.36; 95% CI, 1.30-1.44), myocardial infarction (HR, 1.22; 95% CI, 1.12-1.34), and heart failure (HR, 1.16; 95% CI, 1.09-1.24).
The risk for all conditions was highest within the first 3 months of treatment, with a cumulative incidence of pneumonia among antipsychotic users of 4.48% vs 1.49% among nonusers. At 1 year, this increased to 10.41% for users vs 5.63% for nonusers.
“Given the higher risks of adverse events in the early days after drug initiation, clinical examinations should be taken before, and clinical reviews conducted shortly after, the start of treatment,” the authors wrote. “Our study reaffirms that these drugs should only be prescribed for the shortest period possible.”
‘Serious Harms’
In an accompanying editorial, Raya Elfadel Kheirbek, MD, and Cristina LaFont, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, said the findings “highlight the need for careful justification of antipsychotic use in dementia care, including a comprehensive assessment of the benefits weighed against a broader range of serious harms than previously acknowledged.”
“Using antipsychotics for the management of dementia-related behaviors requires nuanced decision-making after careful assessment, informed by a personalized approach,” they continued. “Dr. Mok and colleagues call for a critical re-evaluation of antipsychotic use in this clinical setting.”
While the findings add to and expand what was already known, “we need to be clear that they don’t show antipsychotics cause all the adverse outcomes reported,” Masud Husain, DPhil, professor of neurology, University of Oxford, England, said in a statement.
While investigators attempted to use matched controls with dementia who had not received antipsychotics, “the people who were prescribed the drugs may simply have been more vulnerable to some of the conditions that occurred more frequently in them, such as pneumonia and cardiovascular disorders,” said Dr. Husain, who was not part of the research.
Although the study was not designed to explore reverse causality, the findings are important for clinicians who prescribe antipsychotics for patients with dementia, Robert Howard, professor of old age psychiatry, at the University of College London, London, England said in a statement.
“Initiation of these drugs in people with dementia should only ever be under specialist supervision, with involvement of patients and family members in informed discussion and review,” said Dr. Howard, who was not involved in the study.
The study was funded by the National Institute for Health and Care Research. Dr. Mok reported no relevant conflicts. Other authors’ disclosures are included in the original article. Dr. Hussain, Dr. Howard, Dr. Kheirbek, and Dr. LeFon reported no relevant conflicts.
A version of this article appeared on Medscape.com.
Antipsychotic use in older adults with dementia is associated with a significant increased risk for stroke, myocardial infarction, heart failure, pneumonia, fracture, acute kidney injury, and a range of other health problems compared with nonuse, new research showed.
The adverse events are far broader and pose more severe health risks than previously reported, investigators noted, and suggested greater caution is needed when prescribing antipsychotics to treat psychological symptoms of dementia.
The matched cohort study used patient registry data on nearly 174,000 people with dementia and compared those who were prescribed an antipsychotic on or after their dementia diagnosis with those who had not received a prescription for the drugs.
Any antipsychotic use was associated with double the risk for pneumonia, a 1.7-fold increased risk for acute kidney injury, and 1.6-fold higher odds of venous thromboembolism compared to nonuse.
Investigators found an increased risk for all outcomes studied, except for ventricular arrythmia, and risk was highest for most within the first week of treatment.
“Any potential benefits of antipsychotic treatment therefore need to be weighed against the risk of serious harm across multiple outcomes. Although there may be times when an antipsychotic prescription is the least bad option, clinicians should actively consider the risks, considering patients’ pre-existing comorbidities and living support,” lead investigator Pearl Mok, research fellow at the Centre for Pharmacoepidemiology and Drug Safety, The University of Manchester, Manchester, England, and colleagues wrote.
The findings were published online in The BMJ.
High Risk
Depression, aggression, anxiety, psychosis, and other behavioral and psychological symptoms are common in people with dementia. Despite earlier reports of increased risk for stroke and mortality with antipsychotic use, the drugs are frequently prescribed to treat these symptoms.
While some preliminary studies identified other adverse outcomes from antipsychotic use, results are limited and inconsistent.
Investigators used primary and secondary care data from the Clinical Practice Research Datalink in England. A total of 173,910 adults (63% women) had a dementia diagnosis between January 1998 and May 2018.
Of the total cohort, 35,339 patients were prescribed an antipsychotic on, or after, a dementia diagnosis. Each was matched with up to 15 patients with dementia with no history of antipsychotic use following diagnosis.
Almost 80% of antipsychotic prescriptions were for risperidone, quetiapine, haloperidol, and olanzapine.
Any antipsychotic use was associated with significantly higher risks for pneumonia (hazard ratio [HR], 2.03; 95% CI, 1.96-2.10), acute kidney injury (HR, 1.57; 95% CI, 1.48-1.66), stroke (HR, 1.54; 95% CI, 1.46-1.63), venous thromboembolism (HR, 1.52; 95% CI, 1.38-1.67), fracture (HR, 1.36; 95% CI, 1.30-1.44), myocardial infarction (HR, 1.22; 95% CI, 1.12-1.34), and heart failure (HR, 1.16; 95% CI, 1.09-1.24).
The risk for all conditions was highest within the first 3 months of treatment, with a cumulative incidence of pneumonia among antipsychotic users of 4.48% vs 1.49% among nonusers. At 1 year, this increased to 10.41% for users vs 5.63% for nonusers.
“Given the higher risks of adverse events in the early days after drug initiation, clinical examinations should be taken before, and clinical reviews conducted shortly after, the start of treatment,” the authors wrote. “Our study reaffirms that these drugs should only be prescribed for the shortest period possible.”
‘Serious Harms’
In an accompanying editorial, Raya Elfadel Kheirbek, MD, and Cristina LaFont, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, said the findings “highlight the need for careful justification of antipsychotic use in dementia care, including a comprehensive assessment of the benefits weighed against a broader range of serious harms than previously acknowledged.”
“Using antipsychotics for the management of dementia-related behaviors requires nuanced decision-making after careful assessment, informed by a personalized approach,” they continued. “Dr. Mok and colleagues call for a critical re-evaluation of antipsychotic use in this clinical setting.”
While the findings add to and expand what was already known, “we need to be clear that they don’t show antipsychotics cause all the adverse outcomes reported,” Masud Husain, DPhil, professor of neurology, University of Oxford, England, said in a statement.
While investigators attempted to use matched controls with dementia who had not received antipsychotics, “the people who were prescribed the drugs may simply have been more vulnerable to some of the conditions that occurred more frequently in them, such as pneumonia and cardiovascular disorders,” said Dr. Husain, who was not part of the research.
Although the study was not designed to explore reverse causality, the findings are important for clinicians who prescribe antipsychotics for patients with dementia, Robert Howard, professor of old age psychiatry, at the University of College London, London, England said in a statement.
“Initiation of these drugs in people with dementia should only ever be under specialist supervision, with involvement of patients and family members in informed discussion and review,” said Dr. Howard, who was not involved in the study.
The study was funded by the National Institute for Health and Care Research. Dr. Mok reported no relevant conflicts. Other authors’ disclosures are included in the original article. Dr. Hussain, Dr. Howard, Dr. Kheirbek, and Dr. LeFon reported no relevant conflicts.
A version of this article appeared on Medscape.com.
Antipsychotic use in older adults with dementia is associated with a significant increased risk for stroke, myocardial infarction, heart failure, pneumonia, fracture, acute kidney injury, and a range of other health problems compared with nonuse, new research showed.
The adverse events are far broader and pose more severe health risks than previously reported, investigators noted, and suggested greater caution is needed when prescribing antipsychotics to treat psychological symptoms of dementia.
The matched cohort study used patient registry data on nearly 174,000 people with dementia and compared those who were prescribed an antipsychotic on or after their dementia diagnosis with those who had not received a prescription for the drugs.
Any antipsychotic use was associated with double the risk for pneumonia, a 1.7-fold increased risk for acute kidney injury, and 1.6-fold higher odds of venous thromboembolism compared to nonuse.
Investigators found an increased risk for all outcomes studied, except for ventricular arrythmia, and risk was highest for most within the first week of treatment.
“Any potential benefits of antipsychotic treatment therefore need to be weighed against the risk of serious harm across multiple outcomes. Although there may be times when an antipsychotic prescription is the least bad option, clinicians should actively consider the risks, considering patients’ pre-existing comorbidities and living support,” lead investigator Pearl Mok, research fellow at the Centre for Pharmacoepidemiology and Drug Safety, The University of Manchester, Manchester, England, and colleagues wrote.
The findings were published online in The BMJ.
High Risk
Depression, aggression, anxiety, psychosis, and other behavioral and psychological symptoms are common in people with dementia. Despite earlier reports of increased risk for stroke and mortality with antipsychotic use, the drugs are frequently prescribed to treat these symptoms.
While some preliminary studies identified other adverse outcomes from antipsychotic use, results are limited and inconsistent.
Investigators used primary and secondary care data from the Clinical Practice Research Datalink in England. A total of 173,910 adults (63% women) had a dementia diagnosis between January 1998 and May 2018.
Of the total cohort, 35,339 patients were prescribed an antipsychotic on, or after, a dementia diagnosis. Each was matched with up to 15 patients with dementia with no history of antipsychotic use following diagnosis.
Almost 80% of antipsychotic prescriptions were for risperidone, quetiapine, haloperidol, and olanzapine.
Any antipsychotic use was associated with significantly higher risks for pneumonia (hazard ratio [HR], 2.03; 95% CI, 1.96-2.10), acute kidney injury (HR, 1.57; 95% CI, 1.48-1.66), stroke (HR, 1.54; 95% CI, 1.46-1.63), venous thromboembolism (HR, 1.52; 95% CI, 1.38-1.67), fracture (HR, 1.36; 95% CI, 1.30-1.44), myocardial infarction (HR, 1.22; 95% CI, 1.12-1.34), and heart failure (HR, 1.16; 95% CI, 1.09-1.24).
The risk for all conditions was highest within the first 3 months of treatment, with a cumulative incidence of pneumonia among antipsychotic users of 4.48% vs 1.49% among nonusers. At 1 year, this increased to 10.41% for users vs 5.63% for nonusers.
“Given the higher risks of adverse events in the early days after drug initiation, clinical examinations should be taken before, and clinical reviews conducted shortly after, the start of treatment,” the authors wrote. “Our study reaffirms that these drugs should only be prescribed for the shortest period possible.”
‘Serious Harms’
In an accompanying editorial, Raya Elfadel Kheirbek, MD, and Cristina LaFont, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, said the findings “highlight the need for careful justification of antipsychotic use in dementia care, including a comprehensive assessment of the benefits weighed against a broader range of serious harms than previously acknowledged.”
“Using antipsychotics for the management of dementia-related behaviors requires nuanced decision-making after careful assessment, informed by a personalized approach,” they continued. “Dr. Mok and colleagues call for a critical re-evaluation of antipsychotic use in this clinical setting.”
While the findings add to and expand what was already known, “we need to be clear that they don’t show antipsychotics cause all the adverse outcomes reported,” Masud Husain, DPhil, professor of neurology, University of Oxford, England, said in a statement.
While investigators attempted to use matched controls with dementia who had not received antipsychotics, “the people who were prescribed the drugs may simply have been more vulnerable to some of the conditions that occurred more frequently in them, such as pneumonia and cardiovascular disorders,” said Dr. Husain, who was not part of the research.
Although the study was not designed to explore reverse causality, the findings are important for clinicians who prescribe antipsychotics for patients with dementia, Robert Howard, professor of old age psychiatry, at the University of College London, London, England said in a statement.
“Initiation of these drugs in people with dementia should only ever be under specialist supervision, with involvement of patients and family members in informed discussion and review,” said Dr. Howard, who was not involved in the study.
The study was funded by the National Institute for Health and Care Research. Dr. Mok reported no relevant conflicts. Other authors’ disclosures are included in the original article. Dr. Hussain, Dr. Howard, Dr. Kheirbek, and Dr. LeFon reported no relevant conflicts.
A version of this article appeared on Medscape.com.
FROM THE BMJ
Adding ACEI to Chemotherapy Does Not Prevent Cardiotoxicity
a new randomized trial showed.
The results suggested adding an ACE inhibitor doesn’t affect cardiac injury or cardiac function outcomes “and should not be used as a preventative strategy” in these patients, David Austin, MD, consultant cardiologist, Academic Cardiovascular Unit, The James Cook University Hospital, Middlesbrough, England, and chief investigator for the PROACT study, told this news organization.
But while these negative results are disappointing, he said, “we now have a definitive result in a robustly conducted trial that will take the field forward.”
The findings were presented on April 8, 2024, at the American College of Cardiology (ACC) Scientific Session 2024.
Anthracyclines, which are extracted from Streptomyces bacterium, are chemotherapy drugs widely used to treat several types of cancer. Doxorubicin is among the most clinically important anthracyclines.
While extremely effective, anthracyclines can cause irreversible damage to cardiac cells and ultimately impair cardiac function and even cause heart failure, which may only be evident years after exposure. “Cardiac injury is very common in patients treated with high dose anthracyclines,” noted Dr. Austin.
The open-label PROACT study included 111 adult patients, mean age 58 years and predominantly White and women, being treated for breast cancer (62%) or NHL (38%) at National Health Service hospitals in England with high-dose anthracycline-based chemotherapy.
Patients were randomized to standard care (six cycles of high-dose doxorubicin-equivalent anthracycline-based chemotherapy) plus the ACE inhibitor enalapril maleate or standard care alone. The mean chemotherapy dose was 328 mg/m2; any dose greater than 300 is considered high.
The starting dose of enalapril was 2.5 mg twice a day, which was titrated up to a maximum of 10 mg twice a day. The ACE inhibitor was started at least 2 days before chemotherapy began and finished 3 weeks after the last anthracycline dose.
During the study, enalapril was titrated to 20 mg in more than 75% of patients, with the mean dose being 17.7 mg.
Myocardial Injury Outcome
The primary outcome was myocardial injury measured by the presence (≥ 14 ng/L) of high sensitivity cardiac troponin T (cTnT) during anthracycline treatment and 1 month after the last dose of anthracycline.
cTnT is highly expressed in cardiomyocytes and has become a preferred biomarker for detecting acute myocardial infarction and other causes of myocardial injury.
Blood sampling for cTnT and cardiac troponin I (cTnI) was performed at baseline, within 72 hours prior to chemotherapy and at trial completion. All patients had negative troponin results at baseline, indicating no heart damage.
A majority of patients experienced elevations in troponin (78% in the enalapril group and 83% in the standard of care group), but there was no statistically significant difference between groups (adjusted odds ratio [OR], 0.65; 95% CI, 0.23-1.78; P = .405).
There was also no significant difference between groups in terms of cTnI, a secondary endpoint. However, the proportion of patients testing positive for cTnI (47% in the enalapril group and 45% in controls) was substantially lower than that for cTnT.
Large Discrepancy
The “large discrepancy in the rate of injury” with cTnT “has implications for the clinical interpretation of cardiac biomarkers in routine practice, and we should proceed with caution,” Dr. Austin told this news organization.
The finding has implications because guidelines don’t currently differentiate based on the type of troponin, Dr. Austin said in a press release. “I was surprised by the difference, and I think this raises the question of what troponin we should be using.”
Secondary outcomes focused on cardiac function, measured using echocardiography and included left ventricular global longitudinal strain (LVGLS) and left ventricular ejection fraction (LVEF). These were measured at baseline, 4 weeks after the last anthracycline dose and 1 year after the final chemotherapy.
There was no between-group difference in LVGLS cardiac function (21% for enalapril vs 22% for standard of care; adjusted OR, 0.95; 95% CI, 0.33-2.74; P = .921). This was also true for LVEF (4% for enalapril vs 0% for standard of care group; adjusted OR, 4.89; 95% CI, 0.40-674.62; P = .236).
Asked what the research team plans to do next, Dr. Austin said “the immediate first step” is to continue following PROACT patients. “We know heart failure events and cardiac dysfunction can occur later down the line.”
Due to the challenge of enrolling patients into trials like PROACT, “we should come together as a sort of a broader cardiovascular/oncology academic community to try to understand how we can better recruit patients into these studies,” said Dr. Austin.
“We need to solve that problem before we then go on to maybe examine other potential preventative therapies.”
He doesn’t think an alternative ACE inhibitor would prove beneficial. “We need to look elsewhere for effective therapies in this area.”
He noted these new findings are “broadly consistent” with other trials that investigated angiotensin receptor blockers.
Tough Population
Commenting on the study during a media briefing, Anita Deswal, chair, medicine, Department of Cardiology, Division of Internal Medicine, The University of Texas, commended the researchers for managing to enroll patients with cancer as this is “a tough” population to get to agree to being in a clinical trial.
“These patients are often overwhelmed financially, physically, and emotionally with the cancer diagnosis, as well as the cancer therapy and, therefore, to enroll them in something to prevent, maybe, some potential cardiac toxicity down the line, is really hard.”
Past trials investigating neuro-hormonal blockers to prevent cardiotoxicity have been criticized for enrolling patients at “too low risk,” said Dr. Deswal. “But investigators here went that step beyond and enrolled patients who were going to receive higher doses of anthracyclines, so kudos to that.”
And she noted investigators managed to get patients on almost the maximum dose of enalapril. “So, the drug was poised to have an effect — if it was there.”
The negative results may have something to do with endpoints. “Maybe we haven’t quite figured out what are the cutoffs for high sensitivity troponin I that identify patients truly at risk” of developing heart failure in the future.
Commenting on the study for this news organization, Anu Lala, MD, assistant professor of medicine at the Icahn School of Medicine at Mount Sinai, New York City, said the results may come as a surprise to some.
“ACE inhibitors are considered cardioprotective and for this reason are often used prophylactically in patients receiving chemotherapy.”
Dr. Lala agrees troponin may not be the right endpoint. “Another question is whether clinical outcomes should be followed in addition to symptoms or onset of any heart failure symptoms, which may hold greater prognostic significance.”
The study was funded by the National Institute for Health and Care Research.
A version of this article appeared on Medscape.com.
a new randomized trial showed.
The results suggested adding an ACE inhibitor doesn’t affect cardiac injury or cardiac function outcomes “and should not be used as a preventative strategy” in these patients, David Austin, MD, consultant cardiologist, Academic Cardiovascular Unit, The James Cook University Hospital, Middlesbrough, England, and chief investigator for the PROACT study, told this news organization.
But while these negative results are disappointing, he said, “we now have a definitive result in a robustly conducted trial that will take the field forward.”
The findings were presented on April 8, 2024, at the American College of Cardiology (ACC) Scientific Session 2024.
Anthracyclines, which are extracted from Streptomyces bacterium, are chemotherapy drugs widely used to treat several types of cancer. Doxorubicin is among the most clinically important anthracyclines.
While extremely effective, anthracyclines can cause irreversible damage to cardiac cells and ultimately impair cardiac function and even cause heart failure, which may only be evident years after exposure. “Cardiac injury is very common in patients treated with high dose anthracyclines,” noted Dr. Austin.
The open-label PROACT study included 111 adult patients, mean age 58 years and predominantly White and women, being treated for breast cancer (62%) or NHL (38%) at National Health Service hospitals in England with high-dose anthracycline-based chemotherapy.
Patients were randomized to standard care (six cycles of high-dose doxorubicin-equivalent anthracycline-based chemotherapy) plus the ACE inhibitor enalapril maleate or standard care alone. The mean chemotherapy dose was 328 mg/m2; any dose greater than 300 is considered high.
The starting dose of enalapril was 2.5 mg twice a day, which was titrated up to a maximum of 10 mg twice a day. The ACE inhibitor was started at least 2 days before chemotherapy began and finished 3 weeks after the last anthracycline dose.
During the study, enalapril was titrated to 20 mg in more than 75% of patients, with the mean dose being 17.7 mg.
Myocardial Injury Outcome
The primary outcome was myocardial injury measured by the presence (≥ 14 ng/L) of high sensitivity cardiac troponin T (cTnT) during anthracycline treatment and 1 month after the last dose of anthracycline.
cTnT is highly expressed in cardiomyocytes and has become a preferred biomarker for detecting acute myocardial infarction and other causes of myocardial injury.
Blood sampling for cTnT and cardiac troponin I (cTnI) was performed at baseline, within 72 hours prior to chemotherapy and at trial completion. All patients had negative troponin results at baseline, indicating no heart damage.
A majority of patients experienced elevations in troponin (78% in the enalapril group and 83% in the standard of care group), but there was no statistically significant difference between groups (adjusted odds ratio [OR], 0.65; 95% CI, 0.23-1.78; P = .405).
There was also no significant difference between groups in terms of cTnI, a secondary endpoint. However, the proportion of patients testing positive for cTnI (47% in the enalapril group and 45% in controls) was substantially lower than that for cTnT.
Large Discrepancy
The “large discrepancy in the rate of injury” with cTnT “has implications for the clinical interpretation of cardiac biomarkers in routine practice, and we should proceed with caution,” Dr. Austin told this news organization.
The finding has implications because guidelines don’t currently differentiate based on the type of troponin, Dr. Austin said in a press release. “I was surprised by the difference, and I think this raises the question of what troponin we should be using.”
Secondary outcomes focused on cardiac function, measured using echocardiography and included left ventricular global longitudinal strain (LVGLS) and left ventricular ejection fraction (LVEF). These were measured at baseline, 4 weeks after the last anthracycline dose and 1 year after the final chemotherapy.
There was no between-group difference in LVGLS cardiac function (21% for enalapril vs 22% for standard of care; adjusted OR, 0.95; 95% CI, 0.33-2.74; P = .921). This was also true for LVEF (4% for enalapril vs 0% for standard of care group; adjusted OR, 4.89; 95% CI, 0.40-674.62; P = .236).
Asked what the research team plans to do next, Dr. Austin said “the immediate first step” is to continue following PROACT patients. “We know heart failure events and cardiac dysfunction can occur later down the line.”
Due to the challenge of enrolling patients into trials like PROACT, “we should come together as a sort of a broader cardiovascular/oncology academic community to try to understand how we can better recruit patients into these studies,” said Dr. Austin.
“We need to solve that problem before we then go on to maybe examine other potential preventative therapies.”
He doesn’t think an alternative ACE inhibitor would prove beneficial. “We need to look elsewhere for effective therapies in this area.”
He noted these new findings are “broadly consistent” with other trials that investigated angiotensin receptor blockers.
Tough Population
Commenting on the study during a media briefing, Anita Deswal, chair, medicine, Department of Cardiology, Division of Internal Medicine, The University of Texas, commended the researchers for managing to enroll patients with cancer as this is “a tough” population to get to agree to being in a clinical trial.
“These patients are often overwhelmed financially, physically, and emotionally with the cancer diagnosis, as well as the cancer therapy and, therefore, to enroll them in something to prevent, maybe, some potential cardiac toxicity down the line, is really hard.”
Past trials investigating neuro-hormonal blockers to prevent cardiotoxicity have been criticized for enrolling patients at “too low risk,” said Dr. Deswal. “But investigators here went that step beyond and enrolled patients who were going to receive higher doses of anthracyclines, so kudos to that.”
And she noted investigators managed to get patients on almost the maximum dose of enalapril. “So, the drug was poised to have an effect — if it was there.”
The negative results may have something to do with endpoints. “Maybe we haven’t quite figured out what are the cutoffs for high sensitivity troponin I that identify patients truly at risk” of developing heart failure in the future.
Commenting on the study for this news organization, Anu Lala, MD, assistant professor of medicine at the Icahn School of Medicine at Mount Sinai, New York City, said the results may come as a surprise to some.
“ACE inhibitors are considered cardioprotective and for this reason are often used prophylactically in patients receiving chemotherapy.”
Dr. Lala agrees troponin may not be the right endpoint. “Another question is whether clinical outcomes should be followed in addition to symptoms or onset of any heart failure symptoms, which may hold greater prognostic significance.”
The study was funded by the National Institute for Health and Care Research.
A version of this article appeared on Medscape.com.
a new randomized trial showed.
The results suggested adding an ACE inhibitor doesn’t affect cardiac injury or cardiac function outcomes “and should not be used as a preventative strategy” in these patients, David Austin, MD, consultant cardiologist, Academic Cardiovascular Unit, The James Cook University Hospital, Middlesbrough, England, and chief investigator for the PROACT study, told this news organization.
But while these negative results are disappointing, he said, “we now have a definitive result in a robustly conducted trial that will take the field forward.”
The findings were presented on April 8, 2024, at the American College of Cardiology (ACC) Scientific Session 2024.
Anthracyclines, which are extracted from Streptomyces bacterium, are chemotherapy drugs widely used to treat several types of cancer. Doxorubicin is among the most clinically important anthracyclines.
While extremely effective, anthracyclines can cause irreversible damage to cardiac cells and ultimately impair cardiac function and even cause heart failure, which may only be evident years after exposure. “Cardiac injury is very common in patients treated with high dose anthracyclines,” noted Dr. Austin.
The open-label PROACT study included 111 adult patients, mean age 58 years and predominantly White and women, being treated for breast cancer (62%) or NHL (38%) at National Health Service hospitals in England with high-dose anthracycline-based chemotherapy.
Patients were randomized to standard care (six cycles of high-dose doxorubicin-equivalent anthracycline-based chemotherapy) plus the ACE inhibitor enalapril maleate or standard care alone. The mean chemotherapy dose was 328 mg/m2; any dose greater than 300 is considered high.
The starting dose of enalapril was 2.5 mg twice a day, which was titrated up to a maximum of 10 mg twice a day. The ACE inhibitor was started at least 2 days before chemotherapy began and finished 3 weeks after the last anthracycline dose.
During the study, enalapril was titrated to 20 mg in more than 75% of patients, with the mean dose being 17.7 mg.
Myocardial Injury Outcome
The primary outcome was myocardial injury measured by the presence (≥ 14 ng/L) of high sensitivity cardiac troponin T (cTnT) during anthracycline treatment and 1 month after the last dose of anthracycline.
cTnT is highly expressed in cardiomyocytes and has become a preferred biomarker for detecting acute myocardial infarction and other causes of myocardial injury.
Blood sampling for cTnT and cardiac troponin I (cTnI) was performed at baseline, within 72 hours prior to chemotherapy and at trial completion. All patients had negative troponin results at baseline, indicating no heart damage.
A majority of patients experienced elevations in troponin (78% in the enalapril group and 83% in the standard of care group), but there was no statistically significant difference between groups (adjusted odds ratio [OR], 0.65; 95% CI, 0.23-1.78; P = .405).
There was also no significant difference between groups in terms of cTnI, a secondary endpoint. However, the proportion of patients testing positive for cTnI (47% in the enalapril group and 45% in controls) was substantially lower than that for cTnT.
Large Discrepancy
The “large discrepancy in the rate of injury” with cTnT “has implications for the clinical interpretation of cardiac biomarkers in routine practice, and we should proceed with caution,” Dr. Austin told this news organization.
The finding has implications because guidelines don’t currently differentiate based on the type of troponin, Dr. Austin said in a press release. “I was surprised by the difference, and I think this raises the question of what troponin we should be using.”
Secondary outcomes focused on cardiac function, measured using echocardiography and included left ventricular global longitudinal strain (LVGLS) and left ventricular ejection fraction (LVEF). These were measured at baseline, 4 weeks after the last anthracycline dose and 1 year after the final chemotherapy.
There was no between-group difference in LVGLS cardiac function (21% for enalapril vs 22% for standard of care; adjusted OR, 0.95; 95% CI, 0.33-2.74; P = .921). This was also true for LVEF (4% for enalapril vs 0% for standard of care group; adjusted OR, 4.89; 95% CI, 0.40-674.62; P = .236).
Asked what the research team plans to do next, Dr. Austin said “the immediate first step” is to continue following PROACT patients. “We know heart failure events and cardiac dysfunction can occur later down the line.”
Due to the challenge of enrolling patients into trials like PROACT, “we should come together as a sort of a broader cardiovascular/oncology academic community to try to understand how we can better recruit patients into these studies,” said Dr. Austin.
“We need to solve that problem before we then go on to maybe examine other potential preventative therapies.”
He doesn’t think an alternative ACE inhibitor would prove beneficial. “We need to look elsewhere for effective therapies in this area.”
He noted these new findings are “broadly consistent” with other trials that investigated angiotensin receptor blockers.
Tough Population
Commenting on the study during a media briefing, Anita Deswal, chair, medicine, Department of Cardiology, Division of Internal Medicine, The University of Texas, commended the researchers for managing to enroll patients with cancer as this is “a tough” population to get to agree to being in a clinical trial.
“These patients are often overwhelmed financially, physically, and emotionally with the cancer diagnosis, as well as the cancer therapy and, therefore, to enroll them in something to prevent, maybe, some potential cardiac toxicity down the line, is really hard.”
Past trials investigating neuro-hormonal blockers to prevent cardiotoxicity have been criticized for enrolling patients at “too low risk,” said Dr. Deswal. “But investigators here went that step beyond and enrolled patients who were going to receive higher doses of anthracyclines, so kudos to that.”
And she noted investigators managed to get patients on almost the maximum dose of enalapril. “So, the drug was poised to have an effect — if it was there.”
The negative results may have something to do with endpoints. “Maybe we haven’t quite figured out what are the cutoffs for high sensitivity troponin I that identify patients truly at risk” of developing heart failure in the future.
Commenting on the study for this news organization, Anu Lala, MD, assistant professor of medicine at the Icahn School of Medicine at Mount Sinai, New York City, said the results may come as a surprise to some.
“ACE inhibitors are considered cardioprotective and for this reason are often used prophylactically in patients receiving chemotherapy.”
Dr. Lala agrees troponin may not be the right endpoint. “Another question is whether clinical outcomes should be followed in addition to symptoms or onset of any heart failure symptoms, which may hold greater prognostic significance.”
The study was funded by the National Institute for Health and Care Research.
A version of this article appeared on Medscape.com.
FROM THE ACC 2024
New and Improved Option for Detecting Neurologic Pathogens?
DENVER — , results of a real-world analysis show.
Metagenomic next-generation sequencing (mNGS) of RNA and DNA from cerebrospinal fluid (CSF) simultaneously tests for a wide range of infectious agents and identifies individual pathogens, including viruses, bacteria, fungi, and parasites. About half of patients with a suspected central nervous system (CNS) infection may go undiagnosed due to a lack of tools that detect rare pathogens. Although mNGS is currently available only in specialized laboratories, expanding access to the diagnostic could address this problem, investigators noted.
“Our results justify incorporation of CSF mNGS testing as part of the routine diagnostic workup in hospitalized patients who present with potential central nervous system infections,” study investigator Charles Chiu, MD, PhD, professor in the Department of Laboratory Medicine as well as Medicine and Department of Medicine – Infectious Diseases and director of the Clinical Microbiology Laboratory, University of California San Fransisco (UCSF), said at a press conference.
The findings were presented at the 2024 annual meeting of the American Academy of Neurology (AAN).
‘Real-World’ Performance
Accurate diagnosis of CNS infections on the basis of CSF, imaging, patient history, and presentation is challenging, the researchers noted. “Roughly 50% of patients who present with a presumed central nervous system infection actually end up without a diagnosis,” Dr. Chiu said.
This is due to the lack of diagnostic tests for rare pathogens and because noninfectious conditions like cancer, autoantibody syndrome, or vasculitis can mimic an infection, he added.
CSF is “very limiting,” Dr. Chiu noted. “We are unable, practically, from a volume perspective, as well as a cost and turnaround time perspective, to be able to send off every possible test for every possible organism.”
The inability to rapidly pinpoint the cause of an infectious disease like meningitis or encephalitis can cause delays in appropriate treatment.
To assess the “real-world” performance of mNGS, researchers collected 4828 samples from mainly hospitalized patients across the United States and elsewhere from 2016 to 2023.
Overall, the test detected at least one pathogen in 16.6% of cases. More than 70% were DNA or RNA viruses, followed by bacteria, fungi, and parasites.
High Sensitivity
The technology was also able to detect novel or emerging neurotropic pathogens, including a yellow fever virus responsible for a transfusion-transmitted encephalitis outbreak and Fusarium solani, which caused a fungal meningitis outbreak.
Investigators also conducted a chart review on a subset of 1052 patients at UCSF to compare the performance of CSF nMGS testing with commonly used in-hospital diagnostic tests.
“We showed that as a single test, spinal fluid mNGS has an overall sensitivity of 63%, specificity of 99%, and accuracy of 90%,” said Dr. Chiu.
The sensitivity of mNGS was significantly higher compared with direct-detection testing from CSF (46%); direct-detection testing performed on samples other than CSF, such as blood (15%); and indirect serologic testing looking for antibodies (29%) (P < .001 for all).
This suggests that mNGS could potentially “detect the hundreds of different pathogens that cause clinically indistinguishable infections,” Dr. Chui said.
mNGS testing is currently confined to large specialized or reference laboratories. For greater access to the test, routine clinical labs or hospital labs would have to implement it, said Dr. Chiu.
“If you can bring the technology to the point of care, directly to the hospital lab that’s running the test, we can produce results that would have a more rapid impact on patients,” he said.
Guiding Therapy
Ultimately, he added, the purpose of a diagnostic test is to “generate actionable information that could potentially guide therapy.”
Researchers are now evaluating medical charts of the same subcohort of patients to determine whether the test made a clinical difference.
“We want to know if it had a positive or negative or no clinical impact on the management and treatment of patients,” said Dr. Chiu. “Producing data like this will help us define the role of this test in the future as part of the diagnostic paradigm.”
The researchers are also working on a cost/benefit analysis, and Dr. Chiu said that US Food and Drug Administration approval of the test is needed “to establish a blueprint for reimbursement.”
Commenting on the findings, Jessica Robinson-Papp, MD, professor and vice chair of clinical research, Department of Neurology, Icahn School of Medicine, New York, said that the technology could be useful, especially in developing countries with higher rates of CNS infections.
“What’s really exciting about it is you can take a very small CSF sample, like 1 mL, and in an unbiased way just screen for all different kinds of pathogens including both DNA and RNA viruses, parasites, bacteria, and fungi, and sort of come up with whether there’s a pathogen there or whether there is no pathogen there,” she said.
However, there’s a chance that this sensitive technique will pick up contaminants, she added. “For example, if there’s a little environmental bacterium either on the skin or in the water used for processing, it can get reads on that.”
The study received support from Delve Bio and the Chan-Zuckerberg Biohub.
Dr. Chiu has received personal compensation for serving on a Scientific Advisory or Data Safety Monitoring Board for Biomeme and has stock in Delve Bio, Poppy Health, Mammoth Biosciences, and BiomeSense and has received intellectual property interests from a discovery or technology relating to healthcare. Dr. Robinson-Papp has no relevant conflicts of interest.
A version of this article appeared on Medscape.com.
DENVER — , results of a real-world analysis show.
Metagenomic next-generation sequencing (mNGS) of RNA and DNA from cerebrospinal fluid (CSF) simultaneously tests for a wide range of infectious agents and identifies individual pathogens, including viruses, bacteria, fungi, and parasites. About half of patients with a suspected central nervous system (CNS) infection may go undiagnosed due to a lack of tools that detect rare pathogens. Although mNGS is currently available only in specialized laboratories, expanding access to the diagnostic could address this problem, investigators noted.
“Our results justify incorporation of CSF mNGS testing as part of the routine diagnostic workup in hospitalized patients who present with potential central nervous system infections,” study investigator Charles Chiu, MD, PhD, professor in the Department of Laboratory Medicine as well as Medicine and Department of Medicine – Infectious Diseases and director of the Clinical Microbiology Laboratory, University of California San Fransisco (UCSF), said at a press conference.
The findings were presented at the 2024 annual meeting of the American Academy of Neurology (AAN).
‘Real-World’ Performance
Accurate diagnosis of CNS infections on the basis of CSF, imaging, patient history, and presentation is challenging, the researchers noted. “Roughly 50% of patients who present with a presumed central nervous system infection actually end up without a diagnosis,” Dr. Chiu said.
This is due to the lack of diagnostic tests for rare pathogens and because noninfectious conditions like cancer, autoantibody syndrome, or vasculitis can mimic an infection, he added.
CSF is “very limiting,” Dr. Chiu noted. “We are unable, practically, from a volume perspective, as well as a cost and turnaround time perspective, to be able to send off every possible test for every possible organism.”
The inability to rapidly pinpoint the cause of an infectious disease like meningitis or encephalitis can cause delays in appropriate treatment.
To assess the “real-world” performance of mNGS, researchers collected 4828 samples from mainly hospitalized patients across the United States and elsewhere from 2016 to 2023.
Overall, the test detected at least one pathogen in 16.6% of cases. More than 70% were DNA or RNA viruses, followed by bacteria, fungi, and parasites.
High Sensitivity
The technology was also able to detect novel or emerging neurotropic pathogens, including a yellow fever virus responsible for a transfusion-transmitted encephalitis outbreak and Fusarium solani, which caused a fungal meningitis outbreak.
Investigators also conducted a chart review on a subset of 1052 patients at UCSF to compare the performance of CSF nMGS testing with commonly used in-hospital diagnostic tests.
“We showed that as a single test, spinal fluid mNGS has an overall sensitivity of 63%, specificity of 99%, and accuracy of 90%,” said Dr. Chiu.
The sensitivity of mNGS was significantly higher compared with direct-detection testing from CSF (46%); direct-detection testing performed on samples other than CSF, such as blood (15%); and indirect serologic testing looking for antibodies (29%) (P < .001 for all).
This suggests that mNGS could potentially “detect the hundreds of different pathogens that cause clinically indistinguishable infections,” Dr. Chui said.
mNGS testing is currently confined to large specialized or reference laboratories. For greater access to the test, routine clinical labs or hospital labs would have to implement it, said Dr. Chiu.
“If you can bring the technology to the point of care, directly to the hospital lab that’s running the test, we can produce results that would have a more rapid impact on patients,” he said.
Guiding Therapy
Ultimately, he added, the purpose of a diagnostic test is to “generate actionable information that could potentially guide therapy.”
Researchers are now evaluating medical charts of the same subcohort of patients to determine whether the test made a clinical difference.
“We want to know if it had a positive or negative or no clinical impact on the management and treatment of patients,” said Dr. Chiu. “Producing data like this will help us define the role of this test in the future as part of the diagnostic paradigm.”
The researchers are also working on a cost/benefit analysis, and Dr. Chiu said that US Food and Drug Administration approval of the test is needed “to establish a blueprint for reimbursement.”
Commenting on the findings, Jessica Robinson-Papp, MD, professor and vice chair of clinical research, Department of Neurology, Icahn School of Medicine, New York, said that the technology could be useful, especially in developing countries with higher rates of CNS infections.
“What’s really exciting about it is you can take a very small CSF sample, like 1 mL, and in an unbiased way just screen for all different kinds of pathogens including both DNA and RNA viruses, parasites, bacteria, and fungi, and sort of come up with whether there’s a pathogen there or whether there is no pathogen there,” she said.
However, there’s a chance that this sensitive technique will pick up contaminants, she added. “For example, if there’s a little environmental bacterium either on the skin or in the water used for processing, it can get reads on that.”
The study received support from Delve Bio and the Chan-Zuckerberg Biohub.
Dr. Chiu has received personal compensation for serving on a Scientific Advisory or Data Safety Monitoring Board for Biomeme and has stock in Delve Bio, Poppy Health, Mammoth Biosciences, and BiomeSense and has received intellectual property interests from a discovery or technology relating to healthcare. Dr. Robinson-Papp has no relevant conflicts of interest.
A version of this article appeared on Medscape.com.
DENVER — , results of a real-world analysis show.
Metagenomic next-generation sequencing (mNGS) of RNA and DNA from cerebrospinal fluid (CSF) simultaneously tests for a wide range of infectious agents and identifies individual pathogens, including viruses, bacteria, fungi, and parasites. About half of patients with a suspected central nervous system (CNS) infection may go undiagnosed due to a lack of tools that detect rare pathogens. Although mNGS is currently available only in specialized laboratories, expanding access to the diagnostic could address this problem, investigators noted.
“Our results justify incorporation of CSF mNGS testing as part of the routine diagnostic workup in hospitalized patients who present with potential central nervous system infections,” study investigator Charles Chiu, MD, PhD, professor in the Department of Laboratory Medicine as well as Medicine and Department of Medicine – Infectious Diseases and director of the Clinical Microbiology Laboratory, University of California San Fransisco (UCSF), said at a press conference.
The findings were presented at the 2024 annual meeting of the American Academy of Neurology (AAN).
‘Real-World’ Performance
Accurate diagnosis of CNS infections on the basis of CSF, imaging, patient history, and presentation is challenging, the researchers noted. “Roughly 50% of patients who present with a presumed central nervous system infection actually end up without a diagnosis,” Dr. Chiu said.
This is due to the lack of diagnostic tests for rare pathogens and because noninfectious conditions like cancer, autoantibody syndrome, or vasculitis can mimic an infection, he added.
CSF is “very limiting,” Dr. Chiu noted. “We are unable, practically, from a volume perspective, as well as a cost and turnaround time perspective, to be able to send off every possible test for every possible organism.”
The inability to rapidly pinpoint the cause of an infectious disease like meningitis or encephalitis can cause delays in appropriate treatment.
To assess the “real-world” performance of mNGS, researchers collected 4828 samples from mainly hospitalized patients across the United States and elsewhere from 2016 to 2023.
Overall, the test detected at least one pathogen in 16.6% of cases. More than 70% were DNA or RNA viruses, followed by bacteria, fungi, and parasites.
High Sensitivity
The technology was also able to detect novel or emerging neurotropic pathogens, including a yellow fever virus responsible for a transfusion-transmitted encephalitis outbreak and Fusarium solani, which caused a fungal meningitis outbreak.
Investigators also conducted a chart review on a subset of 1052 patients at UCSF to compare the performance of CSF nMGS testing with commonly used in-hospital diagnostic tests.
“We showed that as a single test, spinal fluid mNGS has an overall sensitivity of 63%, specificity of 99%, and accuracy of 90%,” said Dr. Chiu.
The sensitivity of mNGS was significantly higher compared with direct-detection testing from CSF (46%); direct-detection testing performed on samples other than CSF, such as blood (15%); and indirect serologic testing looking for antibodies (29%) (P < .001 for all).
This suggests that mNGS could potentially “detect the hundreds of different pathogens that cause clinically indistinguishable infections,” Dr. Chui said.
mNGS testing is currently confined to large specialized or reference laboratories. For greater access to the test, routine clinical labs or hospital labs would have to implement it, said Dr. Chiu.
“If you can bring the technology to the point of care, directly to the hospital lab that’s running the test, we can produce results that would have a more rapid impact on patients,” he said.
Guiding Therapy
Ultimately, he added, the purpose of a diagnostic test is to “generate actionable information that could potentially guide therapy.”
Researchers are now evaluating medical charts of the same subcohort of patients to determine whether the test made a clinical difference.
“We want to know if it had a positive or negative or no clinical impact on the management and treatment of patients,” said Dr. Chiu. “Producing data like this will help us define the role of this test in the future as part of the diagnostic paradigm.”
The researchers are also working on a cost/benefit analysis, and Dr. Chiu said that US Food and Drug Administration approval of the test is needed “to establish a blueprint for reimbursement.”
Commenting on the findings, Jessica Robinson-Papp, MD, professor and vice chair of clinical research, Department of Neurology, Icahn School of Medicine, New York, said that the technology could be useful, especially in developing countries with higher rates of CNS infections.
“What’s really exciting about it is you can take a very small CSF sample, like 1 mL, and in an unbiased way just screen for all different kinds of pathogens including both DNA and RNA viruses, parasites, bacteria, and fungi, and sort of come up with whether there’s a pathogen there or whether there is no pathogen there,” she said.
However, there’s a chance that this sensitive technique will pick up contaminants, she added. “For example, if there’s a little environmental bacterium either on the skin or in the water used for processing, it can get reads on that.”
The study received support from Delve Bio and the Chan-Zuckerberg Biohub.
Dr. Chiu has received personal compensation for serving on a Scientific Advisory or Data Safety Monitoring Board for Biomeme and has stock in Delve Bio, Poppy Health, Mammoth Biosciences, and BiomeSense and has received intellectual property interests from a discovery or technology relating to healthcare. Dr. Robinson-Papp has no relevant conflicts of interest.
A version of this article appeared on Medscape.com.
FROM AAN 2024
Vaporized Cannabis for Acute Migraine Yields Rapid, Sustained Relief
DENVER — , new research suggests.
“In this single-center randomized controlled trial across 247 treated migraine attacks, four puffs of vaporized THC-CBD mix were efficacious for acute migraine treatment,” said study investigator Nathaniel Marc Schuster, MD, with University of California San Diego Center for Pain Medicine.
The superiority of THC-CBD over placebo was “unlikely explained by unmasking given that in our blinding analysis most patients who got THC actually did not think they got some THC,” Dr. Schuster said.
He presented the results at the 2024 annual meeting of the American Academy of Neurology.
Sustained Pain Relief
Preclinical and retrospective studies point to antimigraine effects of cannabinoids, yet strong evidence of efficacy from a randomized controlled trial has been lacking.
The researchers tested the efficacy of cannabis for acute migraine in what they report is the first randomized, double-blind, placebo-controlled, crossover trial of adults with migraine.
Participants treated up to four separate moderate to severe migraine attacks, each with one of four different treatments. The four treatments were: 6% THC, 11% CBD, a mix of 6% THC and 11% CBD, or placebo flower from the National Institute on Drug Abuse that has a similar taste and smell to the other products.
The four treatments were vaporized in a randomized order, with at least 1 week washout between treatments. The primary endpoint was pain relief at 2 hours from vaporization. Secondary endpoints were freedom from pain and most bothersome symptom (MBS) at 2 hours from vaporization.
Of the 92 enrolled patients (mean age 41 years, 83% women), 19 treated zero migraine attacks thus leaving 73 patients who treated a total of 247 migraine attacks over the 1-year study.
The THC-CBD mix was superior to placebo at achieving pain relief (67.2% vs 46.6%; P = .016), pain freedom (34.5% vs 15.5%; P = .017), and MBS freedom (60.3% vs 34.5%; P = .005) at 2 hours.
The THC-CBD mix was also superior to placebo for sustained pain freedom at 24 hours and sustained MBS freedom at 24 and 48 hours.
There were no serious adverse events. The THC-CBD mix was better tolerated than THC-only was, with lower rates of euphoria and cognitive impairment and lower subjective highness, Dr. Schuster said.
Adverse events were more common with THC only (vs THC-CBD) “and this is really expected because CBD is known to bring down the side effects of THC,” Dr. Schuster noted.
Summing up his presentation, Dr. Schuster said, “This is one single-center study, and, of course, we need more data. We need to study the rates of medication overuse headache and the rates of cannabis use disorder that may develop with the use of cannabis for migraine.”
Cautious Optimism
Reached for comment, Hsiangkuo (Scott) Yuan, MD, PhD, Department of Neurology, Thomas Jefferson University, and director of clinical research, Jefferson Headache Center, Philadelphia, Pennsylvania, noted that the “statistically significant” differences between THC-CBD versus placebo on 2-hour pain relief, pain freedom and MBS freedom are “certainly very exciting, especially when no serious adverse event was reported.”
“Since THC has a narrow therapeutic window for analgesia (too high causes psychoactive side effects and may even worsen the pain), its dosing needs to be carefully controlled. The study was wisely designed to ensure uniform dosing from the vaporizer, which is usually safer than smoking or a vape pen and has a quicker onset than ingestion for acute usage,” said Dr. Yuan, who was not involved in the study.
“However, the optimal THC-CBD ratio and potency (percent THC) for acute migraine remain to be studied. Perhaps there is an individualized dose that can be obtained by titration. We also don’t know if the effect changes after repeated use,” Dr. Yuan cautioned.
He also noted that cannabis use was associated with medication overuse headache in a retrospective study, “although the causality remains to be determined.”
“While there was no serious adverse event, it is not completely risk-free, especially when cannabis is used repeatedly for a short duration. Since the physician does not have direct control over what happens at the dispensary, we need to counsel our patients more carefully when recommending cannabis/cannabinoids,” Dr. Yuan said.
Overall, he said he is “cautiously optimistic about cannabis use for acute migraine.”
This was an investigator-initiated study, with no commercial funding. Dr. Schuster has disclosed relationships with Schedule 1 Therapeutics, Averitas, Lundbeck, Eli Lilly, ShiraTronics, and Syneos. In the past 24 months, Dr. Yuan has served as a site investigator for Teva, AbbVie, Ipsen, Parema; received advisory/consultant fees from Salvia, Pfizer, AbbVie, Cerenovus; and royalties from Cambridge University Press and MedLink.
A version of this article appeared on Medscape.com.
DENVER — , new research suggests.
“In this single-center randomized controlled trial across 247 treated migraine attacks, four puffs of vaporized THC-CBD mix were efficacious for acute migraine treatment,” said study investigator Nathaniel Marc Schuster, MD, with University of California San Diego Center for Pain Medicine.
The superiority of THC-CBD over placebo was “unlikely explained by unmasking given that in our blinding analysis most patients who got THC actually did not think they got some THC,” Dr. Schuster said.
He presented the results at the 2024 annual meeting of the American Academy of Neurology.
Sustained Pain Relief
Preclinical and retrospective studies point to antimigraine effects of cannabinoids, yet strong evidence of efficacy from a randomized controlled trial has been lacking.
The researchers tested the efficacy of cannabis for acute migraine in what they report is the first randomized, double-blind, placebo-controlled, crossover trial of adults with migraine.
Participants treated up to four separate moderate to severe migraine attacks, each with one of four different treatments. The four treatments were: 6% THC, 11% CBD, a mix of 6% THC and 11% CBD, or placebo flower from the National Institute on Drug Abuse that has a similar taste and smell to the other products.
The four treatments were vaporized in a randomized order, with at least 1 week washout between treatments. The primary endpoint was pain relief at 2 hours from vaporization. Secondary endpoints were freedom from pain and most bothersome symptom (MBS) at 2 hours from vaporization.
Of the 92 enrolled patients (mean age 41 years, 83% women), 19 treated zero migraine attacks thus leaving 73 patients who treated a total of 247 migraine attacks over the 1-year study.
The THC-CBD mix was superior to placebo at achieving pain relief (67.2% vs 46.6%; P = .016), pain freedom (34.5% vs 15.5%; P = .017), and MBS freedom (60.3% vs 34.5%; P = .005) at 2 hours.
The THC-CBD mix was also superior to placebo for sustained pain freedom at 24 hours and sustained MBS freedom at 24 and 48 hours.
There were no serious adverse events. The THC-CBD mix was better tolerated than THC-only was, with lower rates of euphoria and cognitive impairment and lower subjective highness, Dr. Schuster said.
Adverse events were more common with THC only (vs THC-CBD) “and this is really expected because CBD is known to bring down the side effects of THC,” Dr. Schuster noted.
Summing up his presentation, Dr. Schuster said, “This is one single-center study, and, of course, we need more data. We need to study the rates of medication overuse headache and the rates of cannabis use disorder that may develop with the use of cannabis for migraine.”
Cautious Optimism
Reached for comment, Hsiangkuo (Scott) Yuan, MD, PhD, Department of Neurology, Thomas Jefferson University, and director of clinical research, Jefferson Headache Center, Philadelphia, Pennsylvania, noted that the “statistically significant” differences between THC-CBD versus placebo on 2-hour pain relief, pain freedom and MBS freedom are “certainly very exciting, especially when no serious adverse event was reported.”
“Since THC has a narrow therapeutic window for analgesia (too high causes psychoactive side effects and may even worsen the pain), its dosing needs to be carefully controlled. The study was wisely designed to ensure uniform dosing from the vaporizer, which is usually safer than smoking or a vape pen and has a quicker onset than ingestion for acute usage,” said Dr. Yuan, who was not involved in the study.
“However, the optimal THC-CBD ratio and potency (percent THC) for acute migraine remain to be studied. Perhaps there is an individualized dose that can be obtained by titration. We also don’t know if the effect changes after repeated use,” Dr. Yuan cautioned.
He also noted that cannabis use was associated with medication overuse headache in a retrospective study, “although the causality remains to be determined.”
“While there was no serious adverse event, it is not completely risk-free, especially when cannabis is used repeatedly for a short duration. Since the physician does not have direct control over what happens at the dispensary, we need to counsel our patients more carefully when recommending cannabis/cannabinoids,” Dr. Yuan said.
Overall, he said he is “cautiously optimistic about cannabis use for acute migraine.”
This was an investigator-initiated study, with no commercial funding. Dr. Schuster has disclosed relationships with Schedule 1 Therapeutics, Averitas, Lundbeck, Eli Lilly, ShiraTronics, and Syneos. In the past 24 months, Dr. Yuan has served as a site investigator for Teva, AbbVie, Ipsen, Parema; received advisory/consultant fees from Salvia, Pfizer, AbbVie, Cerenovus; and royalties from Cambridge University Press and MedLink.
A version of this article appeared on Medscape.com.
DENVER — , new research suggests.
“In this single-center randomized controlled trial across 247 treated migraine attacks, four puffs of vaporized THC-CBD mix were efficacious for acute migraine treatment,” said study investigator Nathaniel Marc Schuster, MD, with University of California San Diego Center for Pain Medicine.
The superiority of THC-CBD over placebo was “unlikely explained by unmasking given that in our blinding analysis most patients who got THC actually did not think they got some THC,” Dr. Schuster said.
He presented the results at the 2024 annual meeting of the American Academy of Neurology.
Sustained Pain Relief
Preclinical and retrospective studies point to antimigraine effects of cannabinoids, yet strong evidence of efficacy from a randomized controlled trial has been lacking.
The researchers tested the efficacy of cannabis for acute migraine in what they report is the first randomized, double-blind, placebo-controlled, crossover trial of adults with migraine.
Participants treated up to four separate moderate to severe migraine attacks, each with one of four different treatments. The four treatments were: 6% THC, 11% CBD, a mix of 6% THC and 11% CBD, or placebo flower from the National Institute on Drug Abuse that has a similar taste and smell to the other products.
The four treatments were vaporized in a randomized order, with at least 1 week washout between treatments. The primary endpoint was pain relief at 2 hours from vaporization. Secondary endpoints were freedom from pain and most bothersome symptom (MBS) at 2 hours from vaporization.
Of the 92 enrolled patients (mean age 41 years, 83% women), 19 treated zero migraine attacks thus leaving 73 patients who treated a total of 247 migraine attacks over the 1-year study.
The THC-CBD mix was superior to placebo at achieving pain relief (67.2% vs 46.6%; P = .016), pain freedom (34.5% vs 15.5%; P = .017), and MBS freedom (60.3% vs 34.5%; P = .005) at 2 hours.
The THC-CBD mix was also superior to placebo for sustained pain freedom at 24 hours and sustained MBS freedom at 24 and 48 hours.
There were no serious adverse events. The THC-CBD mix was better tolerated than THC-only was, with lower rates of euphoria and cognitive impairment and lower subjective highness, Dr. Schuster said.
Adverse events were more common with THC only (vs THC-CBD) “and this is really expected because CBD is known to bring down the side effects of THC,” Dr. Schuster noted.
Summing up his presentation, Dr. Schuster said, “This is one single-center study, and, of course, we need more data. We need to study the rates of medication overuse headache and the rates of cannabis use disorder that may develop with the use of cannabis for migraine.”
Cautious Optimism
Reached for comment, Hsiangkuo (Scott) Yuan, MD, PhD, Department of Neurology, Thomas Jefferson University, and director of clinical research, Jefferson Headache Center, Philadelphia, Pennsylvania, noted that the “statistically significant” differences between THC-CBD versus placebo on 2-hour pain relief, pain freedom and MBS freedom are “certainly very exciting, especially when no serious adverse event was reported.”
“Since THC has a narrow therapeutic window for analgesia (too high causes psychoactive side effects and may even worsen the pain), its dosing needs to be carefully controlled. The study was wisely designed to ensure uniform dosing from the vaporizer, which is usually safer than smoking or a vape pen and has a quicker onset than ingestion for acute usage,” said Dr. Yuan, who was not involved in the study.
“However, the optimal THC-CBD ratio and potency (percent THC) for acute migraine remain to be studied. Perhaps there is an individualized dose that can be obtained by titration. We also don’t know if the effect changes after repeated use,” Dr. Yuan cautioned.
He also noted that cannabis use was associated with medication overuse headache in a retrospective study, “although the causality remains to be determined.”
“While there was no serious adverse event, it is not completely risk-free, especially when cannabis is used repeatedly for a short duration. Since the physician does not have direct control over what happens at the dispensary, we need to counsel our patients more carefully when recommending cannabis/cannabinoids,” Dr. Yuan said.
Overall, he said he is “cautiously optimistic about cannabis use for acute migraine.”
This was an investigator-initiated study, with no commercial funding. Dr. Schuster has disclosed relationships with Schedule 1 Therapeutics, Averitas, Lundbeck, Eli Lilly, ShiraTronics, and Syneos. In the past 24 months, Dr. Yuan has served as a site investigator for Teva, AbbVie, Ipsen, Parema; received advisory/consultant fees from Salvia, Pfizer, AbbVie, Cerenovus; and royalties from Cambridge University Press and MedLink.
A version of this article appeared on Medscape.com.
FROM AAN 2024
Ocular Microbiome May Be Dry Eye Culprit
A mix of microbes may help explain why some people develop dry eye disease, new research showed.
This finding suggests that bacteria may cause dry eye and could someday point to new treatments for the condition and related disorders, which affect an estimated 27 million Americans, according to researchers.
Current treatments aim to preserve and enhance tears and tear production to ease the grittiness and itchiness that accompany dry eye disease.
To examine the role of the ocular microbiome in dry eye disease, scientists in Texas analyzed swab samples from 30 men and women, nine of whom had dry eye.
They found Streptococcus and Pedobacter species were the most common bacteria in healthy eyes.
In people with dry eye, however, more Acinetobacter species were detected.
“We think the metabolites produced by these bacteria are responsible for dry eye conditions,” study coauthor Pallavi Sharma said in a news release about the findings.
Sharma, a graduate student at Stephen F. Austin State University in Nacogdoches, Texas, presented this research last month at the annual meeting of the American Society for Biochemistry and Molecular Biology. The research team was led by Alexandra Van Kley, PhD, a professor of biology at the university.
“Once we understand the eye microbiota properly, it will improve disease diagnosis at an early stage,” Van Kley predicted in the news release. “This knowledge can also serve as a catalyst for developing innovative therapies aimed at preventing and treating ocular disease as well as those that affect the central microbiome site: The gut.”
Investigators in Australia have conducted similar experiments in patients with meibomian gland dysfunction, a condition marked by underproduction of key oils in the eye.
One group reported in August 2023 the finding of “detectable differences in the bacterial richness, diversity, and community structure of the conjunctiva and eyelid margin between individuals with meibomian gland dysfunction with and without lacrimal dysfunction, as well as to healthy controls.”
More research is needed to confirm and understand the findings, though, and “to determine if manipulating the microbiome could be a potential treatment for the condition,” they wrote.
A version of this article appeared on Medscape.com.
A mix of microbes may help explain why some people develop dry eye disease, new research showed.
This finding suggests that bacteria may cause dry eye and could someday point to new treatments for the condition and related disorders, which affect an estimated 27 million Americans, according to researchers.
Current treatments aim to preserve and enhance tears and tear production to ease the grittiness and itchiness that accompany dry eye disease.
To examine the role of the ocular microbiome in dry eye disease, scientists in Texas analyzed swab samples from 30 men and women, nine of whom had dry eye.
They found Streptococcus and Pedobacter species were the most common bacteria in healthy eyes.
In people with dry eye, however, more Acinetobacter species were detected.
“We think the metabolites produced by these bacteria are responsible for dry eye conditions,” study coauthor Pallavi Sharma said in a news release about the findings.
Sharma, a graduate student at Stephen F. Austin State University in Nacogdoches, Texas, presented this research last month at the annual meeting of the American Society for Biochemistry and Molecular Biology. The research team was led by Alexandra Van Kley, PhD, a professor of biology at the university.
“Once we understand the eye microbiota properly, it will improve disease diagnosis at an early stage,” Van Kley predicted in the news release. “This knowledge can also serve as a catalyst for developing innovative therapies aimed at preventing and treating ocular disease as well as those that affect the central microbiome site: The gut.”
Investigators in Australia have conducted similar experiments in patients with meibomian gland dysfunction, a condition marked by underproduction of key oils in the eye.
One group reported in August 2023 the finding of “detectable differences in the bacterial richness, diversity, and community structure of the conjunctiva and eyelid margin between individuals with meibomian gland dysfunction with and without lacrimal dysfunction, as well as to healthy controls.”
More research is needed to confirm and understand the findings, though, and “to determine if manipulating the microbiome could be a potential treatment for the condition,” they wrote.
A version of this article appeared on Medscape.com.
A mix of microbes may help explain why some people develop dry eye disease, new research showed.
This finding suggests that bacteria may cause dry eye and could someday point to new treatments for the condition and related disorders, which affect an estimated 27 million Americans, according to researchers.
Current treatments aim to preserve and enhance tears and tear production to ease the grittiness and itchiness that accompany dry eye disease.
To examine the role of the ocular microbiome in dry eye disease, scientists in Texas analyzed swab samples from 30 men and women, nine of whom had dry eye.
They found Streptococcus and Pedobacter species were the most common bacteria in healthy eyes.
In people with dry eye, however, more Acinetobacter species were detected.
“We think the metabolites produced by these bacteria are responsible for dry eye conditions,” study coauthor Pallavi Sharma said in a news release about the findings.
Sharma, a graduate student at Stephen F. Austin State University in Nacogdoches, Texas, presented this research last month at the annual meeting of the American Society for Biochemistry and Molecular Biology. The research team was led by Alexandra Van Kley, PhD, a professor of biology at the university.
“Once we understand the eye microbiota properly, it will improve disease diagnosis at an early stage,” Van Kley predicted in the news release. “This knowledge can also serve as a catalyst for developing innovative therapies aimed at preventing and treating ocular disease as well as those that affect the central microbiome site: The gut.”
Investigators in Australia have conducted similar experiments in patients with meibomian gland dysfunction, a condition marked by underproduction of key oils in the eye.
One group reported in August 2023 the finding of “detectable differences in the bacterial richness, diversity, and community structure of the conjunctiva and eyelid margin between individuals with meibomian gland dysfunction with and without lacrimal dysfunction, as well as to healthy controls.”
More research is needed to confirm and understand the findings, though, and “to determine if manipulating the microbiome could be a potential treatment for the condition,” they wrote.
A version of this article appeared on Medscape.com.
What’s ‘Tried and True’ in Atopic Dermatitis? An Expert Reflects
SAN DIEGO — Whether you completed your dermatology residency training 20 years ago or 2 years ago, recent advances in treatments for atopic dermatitis (AD) have likely influenced your “go to” interventions when treating children with AD, according to Lawrence F. Eichenfield, MD.
“There have been many changes in the understanding of AD and recognition of the variable courses of the disease, and the associated allergic and nonallergic comorbidities,” Dr. Eichenfield, chief of pediatric and adolescent dermatology at Rady Children’s Hospital-San Diego in California, said at the Society for Pediatric Dermatology meeting, held the day before the annual meeting of the American Academy of Dermatology. “With our revolutionary systemic and evolving topical therapies, we are in a new day of pediatric management.”
Drawing from 2023 American Academy of Dermatology guidelines of care on topical treatments of AD and his own clinical experience, he shared his perspective on “what’s tried and true” in care for patients with persistent eczema:
Both bathing and moisturizing leave skin moist. It’s well established that the use of moisturizers/emollients minimizes xerosis and the amount of prescription anti-inflammatory medications, but limited evidence exists to recommend a particular ingredient and formulation, said Dr. Eichenfield, also professor of dermatology and pediatrics at the University of California, San Diego. “Future studies may tell us whether specific moisturizers work better than others, and/or if early interventions may prevent AD, but that remains a big question mark,” he noted. In addition, applications may sometimes “mobilize” topical prescriptive residual absorption and activity.
As for baths, he said, “avoidance of bathing to avoid drying out skin is a practice without evidence basis. Bathing also may have many benefits in active eczema.”
Bleach baths may enhance skin barrier function, reduce itch, and improve eczema, but the practice remains controversial, he continued. Authors of a systematic review and meta-analysis concluded that while bleach baths are effective in reducing the severity of AD, they do not appear to be more effective than water bath alone. Authors of a more recent study found that bleach baths did not normalize dysbiosis, “but that study did not compare outcomes to bathing without bleach,” Dr. Eichenfield noted.“My sense is there is some benefit to regular bathing, especially in children with moderate to severe AD, especially those with colonized or infected eczema.”
He advises clinicians to be aware of other “standard AD interventions” from around the world, including black tea wet dressings and green tea bath therapy.
Topical corticosteroids. These are “tried and true” for their anti-inflammatory properties and rapid response, relatively low cost, and large range of potency, he said. Potential problems include the burden of topical application and the potential for stinging/burning, atrophy, telangiectasias, adrenal axis suppression, and concerns about withdrawal phenomena. “Being a proponent of topical corticosteroids, but explaining reasonable and appropriate use can be challenging,” Dr. Eichenfield said. “Social media has influenced concerns about topical corticosteroids, with steroid addiction and withdrawal being concerns influencing discomfort with therapies.”
Make sure to measure outcomes. The suggested core outcome measure for recording clinical signs in AD clinical trials is the Eczema Area and Severity Index (EASI) score, he said. In clinical practice, Dr. Eichenfield favors body surface area (BSA) and the Validated Global Assessment scale (v-IGA) to measure signs of moderate to severe AD. “Documenting extent of disease makes a big difference in families understanding how severe their child’s disease is and how it is doing over time.” Alternatively, he recommends the Atopic Dermatitis Control Tool (ADCT) or the Recap of Atopic Eczema (RECAP) as tools assessing long-term disease control.
Familiarize yourself with nonsteroidal anti-inflammatory medications for care regimens. Options include topical calcineurin inhibitors (TCIs) such as tacrolimus and pimecrolimus; phosphodiesterase 4 (PDE-4) inhibitors such as crisaborole and roflumilast; the aryl-hydrocarbon receptor agonist tapinarof; and topical Janus kinase (JAK) inhibitors such as delgocitinib and ruxolitinib as well as others in development. “There is variable status around the world in terms of whether these nonsteroidal options are approved or not,” Dr. Eichenfield said. “Issues of use include cost, availability, side effects, and concerns about potential absorption. I think there’s an evolution in how much we rely on these instead of topical corticosteroids. They’re more commonly used in maintenance regimens rather than for remission induction.”
Dr. Eichenfield encouraged dermatologists to share information about and experiences with evolving treatment options for AD, “because when the studies are done, they are done as monotherapy. We must translate that into clinical practice and figure out how they fit in. Our exchange of information is critical.”
Dr. Eichenfield disclosed conflicts of interest from many pharmaceutical companies, including those with AD treatments.
SAN DIEGO — Whether you completed your dermatology residency training 20 years ago or 2 years ago, recent advances in treatments for atopic dermatitis (AD) have likely influenced your “go to” interventions when treating children with AD, according to Lawrence F. Eichenfield, MD.
“There have been many changes in the understanding of AD and recognition of the variable courses of the disease, and the associated allergic and nonallergic comorbidities,” Dr. Eichenfield, chief of pediatric and adolescent dermatology at Rady Children’s Hospital-San Diego in California, said at the Society for Pediatric Dermatology meeting, held the day before the annual meeting of the American Academy of Dermatology. “With our revolutionary systemic and evolving topical therapies, we are in a new day of pediatric management.”
Drawing from 2023 American Academy of Dermatology guidelines of care on topical treatments of AD and his own clinical experience, he shared his perspective on “what’s tried and true” in care for patients with persistent eczema:
Both bathing and moisturizing leave skin moist. It’s well established that the use of moisturizers/emollients minimizes xerosis and the amount of prescription anti-inflammatory medications, but limited evidence exists to recommend a particular ingredient and formulation, said Dr. Eichenfield, also professor of dermatology and pediatrics at the University of California, San Diego. “Future studies may tell us whether specific moisturizers work better than others, and/or if early interventions may prevent AD, but that remains a big question mark,” he noted. In addition, applications may sometimes “mobilize” topical prescriptive residual absorption and activity.
As for baths, he said, “avoidance of bathing to avoid drying out skin is a practice without evidence basis. Bathing also may have many benefits in active eczema.”
Bleach baths may enhance skin barrier function, reduce itch, and improve eczema, but the practice remains controversial, he continued. Authors of a systematic review and meta-analysis concluded that while bleach baths are effective in reducing the severity of AD, they do not appear to be more effective than water bath alone. Authors of a more recent study found that bleach baths did not normalize dysbiosis, “but that study did not compare outcomes to bathing without bleach,” Dr. Eichenfield noted.“My sense is there is some benefit to regular bathing, especially in children with moderate to severe AD, especially those with colonized or infected eczema.”
He advises clinicians to be aware of other “standard AD interventions” from around the world, including black tea wet dressings and green tea bath therapy.
Topical corticosteroids. These are “tried and true” for their anti-inflammatory properties and rapid response, relatively low cost, and large range of potency, he said. Potential problems include the burden of topical application and the potential for stinging/burning, atrophy, telangiectasias, adrenal axis suppression, and concerns about withdrawal phenomena. “Being a proponent of topical corticosteroids, but explaining reasonable and appropriate use can be challenging,” Dr. Eichenfield said. “Social media has influenced concerns about topical corticosteroids, with steroid addiction and withdrawal being concerns influencing discomfort with therapies.”
Make sure to measure outcomes. The suggested core outcome measure for recording clinical signs in AD clinical trials is the Eczema Area and Severity Index (EASI) score, he said. In clinical practice, Dr. Eichenfield favors body surface area (BSA) and the Validated Global Assessment scale (v-IGA) to measure signs of moderate to severe AD. “Documenting extent of disease makes a big difference in families understanding how severe their child’s disease is and how it is doing over time.” Alternatively, he recommends the Atopic Dermatitis Control Tool (ADCT) or the Recap of Atopic Eczema (RECAP) as tools assessing long-term disease control.
Familiarize yourself with nonsteroidal anti-inflammatory medications for care regimens. Options include topical calcineurin inhibitors (TCIs) such as tacrolimus and pimecrolimus; phosphodiesterase 4 (PDE-4) inhibitors such as crisaborole and roflumilast; the aryl-hydrocarbon receptor agonist tapinarof; and topical Janus kinase (JAK) inhibitors such as delgocitinib and ruxolitinib as well as others in development. “There is variable status around the world in terms of whether these nonsteroidal options are approved or not,” Dr. Eichenfield said. “Issues of use include cost, availability, side effects, and concerns about potential absorption. I think there’s an evolution in how much we rely on these instead of topical corticosteroids. They’re more commonly used in maintenance regimens rather than for remission induction.”
Dr. Eichenfield encouraged dermatologists to share information about and experiences with evolving treatment options for AD, “because when the studies are done, they are done as monotherapy. We must translate that into clinical practice and figure out how they fit in. Our exchange of information is critical.”
Dr. Eichenfield disclosed conflicts of interest from many pharmaceutical companies, including those with AD treatments.
SAN DIEGO — Whether you completed your dermatology residency training 20 years ago or 2 years ago, recent advances in treatments for atopic dermatitis (AD) have likely influenced your “go to” interventions when treating children with AD, according to Lawrence F. Eichenfield, MD.
“There have been many changes in the understanding of AD and recognition of the variable courses of the disease, and the associated allergic and nonallergic comorbidities,” Dr. Eichenfield, chief of pediatric and adolescent dermatology at Rady Children’s Hospital-San Diego in California, said at the Society for Pediatric Dermatology meeting, held the day before the annual meeting of the American Academy of Dermatology. “With our revolutionary systemic and evolving topical therapies, we are in a new day of pediatric management.”
Drawing from 2023 American Academy of Dermatology guidelines of care on topical treatments of AD and his own clinical experience, he shared his perspective on “what’s tried and true” in care for patients with persistent eczema:
Both bathing and moisturizing leave skin moist. It’s well established that the use of moisturizers/emollients minimizes xerosis and the amount of prescription anti-inflammatory medications, but limited evidence exists to recommend a particular ingredient and formulation, said Dr. Eichenfield, also professor of dermatology and pediatrics at the University of California, San Diego. “Future studies may tell us whether specific moisturizers work better than others, and/or if early interventions may prevent AD, but that remains a big question mark,” he noted. In addition, applications may sometimes “mobilize” topical prescriptive residual absorption and activity.
As for baths, he said, “avoidance of bathing to avoid drying out skin is a practice without evidence basis. Bathing also may have many benefits in active eczema.”
Bleach baths may enhance skin barrier function, reduce itch, and improve eczema, but the practice remains controversial, he continued. Authors of a systematic review and meta-analysis concluded that while bleach baths are effective in reducing the severity of AD, they do not appear to be more effective than water bath alone. Authors of a more recent study found that bleach baths did not normalize dysbiosis, “but that study did not compare outcomes to bathing without bleach,” Dr. Eichenfield noted.“My sense is there is some benefit to regular bathing, especially in children with moderate to severe AD, especially those with colonized or infected eczema.”
He advises clinicians to be aware of other “standard AD interventions” from around the world, including black tea wet dressings and green tea bath therapy.
Topical corticosteroids. These are “tried and true” for their anti-inflammatory properties and rapid response, relatively low cost, and large range of potency, he said. Potential problems include the burden of topical application and the potential for stinging/burning, atrophy, telangiectasias, adrenal axis suppression, and concerns about withdrawal phenomena. “Being a proponent of topical corticosteroids, but explaining reasonable and appropriate use can be challenging,” Dr. Eichenfield said. “Social media has influenced concerns about topical corticosteroids, with steroid addiction and withdrawal being concerns influencing discomfort with therapies.”
Make sure to measure outcomes. The suggested core outcome measure for recording clinical signs in AD clinical trials is the Eczema Area and Severity Index (EASI) score, he said. In clinical practice, Dr. Eichenfield favors body surface area (BSA) and the Validated Global Assessment scale (v-IGA) to measure signs of moderate to severe AD. “Documenting extent of disease makes a big difference in families understanding how severe their child’s disease is and how it is doing over time.” Alternatively, he recommends the Atopic Dermatitis Control Tool (ADCT) or the Recap of Atopic Eczema (RECAP) as tools assessing long-term disease control.
Familiarize yourself with nonsteroidal anti-inflammatory medications for care regimens. Options include topical calcineurin inhibitors (TCIs) such as tacrolimus and pimecrolimus; phosphodiesterase 4 (PDE-4) inhibitors such as crisaborole and roflumilast; the aryl-hydrocarbon receptor agonist tapinarof; and topical Janus kinase (JAK) inhibitors such as delgocitinib and ruxolitinib as well as others in development. “There is variable status around the world in terms of whether these nonsteroidal options are approved or not,” Dr. Eichenfield said. “Issues of use include cost, availability, side effects, and concerns about potential absorption. I think there’s an evolution in how much we rely on these instead of topical corticosteroids. They’re more commonly used in maintenance regimens rather than for remission induction.”
Dr. Eichenfield encouraged dermatologists to share information about and experiences with evolving treatment options for AD, “because when the studies are done, they are done as monotherapy. We must translate that into clinical practice and figure out how they fit in. Our exchange of information is critical.”
Dr. Eichenfield disclosed conflicts of interest from many pharmaceutical companies, including those with AD treatments.
Consensus Statement Aims to Guide Use of Low-Dose Oral Minoxidil for Hair Loss
SAN DIEGO — .
Those are among the key recommendations that resulted from a modified eDelphi consensus of experts who convened to develop guidelines for LDOM prescribing and monitoring.
“Topical minoxidil is safe, effective, over-the-counter, and FDA-approved to treat the most common form of hair loss, androgenetic alopecia,” one of the study authors, Jennifer Fu, MD, a dermatologist who directs the Hair Disorders Clinic at the University of California, San Francisco, told this news organization following the annual meeting of the American Academy of Dermatology. The results of the expert consensus were presented during a poster session at the meeting. “It is often used off label for other types of hair loss, yet clinicians who treat hair loss know that patient compliance with topical minoxidil can be poor for a variety of reasons,” she said. “Patients report that it can be difficult to apply and complicate hair styling. For many patients, topical minoxidil can be drying or cause irritant or allergic contact reactions.”
LDOM has become a popular alternative for patients for whom topical minoxidil is logistically challenging, irritating, or ineffective, she continued. Although oral minoxidil is no longer a first-line antihypertensive agent given the risk of cardiovascular adverse effects at higher antihypertensive dosing (10-40 mg daily), a growing number of small studies have documented the use of LDOM at doses ranging from 0.25 mg to 5 mg daily as a safe, effective option for various types of hair loss.
“Given the current absence of larger trials on this topic, our research group identified a need for expert-based guidelines for prescribing and monitoring LDOM use in hair loss patients,” Dr. Fu said. “Our goal was to provide clinicians who treat hair loss patients a road map for using LDOM effectively, maximizing hair growth, and minimizing potential cardiovascular adverse effects.”
Arriving at a Consensus
The process involved 43 hair loss specialists from 12 countries with an average of 6.29 years of experience with LDOM for hair loss, who participated in a multi-round modified Delphi process. They considered questions that addressed LDOM safety, efficacy, dosing, and monitoring for hair loss, and consensus was reached if at least 70% of participants indicated “agree” or “strongly agree” on a five-point Likert scale. Round 1 consisted of 180 open-ended, multiple-choice, or Likert-scale questions, while round 2 involved 121 Likert-scale questions, round 3 consisted of 16 Likert-scale questions, and round 4 included 11 Likert-scale questions. In all, 94 items achieved Likert-scale consensus.
Specifically, experts on the panel found a direct benefit of LDOM for androgenetic alopecia, age-related patterned thinning, alopecia areata, telogen effluvium, traction alopecia, persistent chemotherapy-induced alopecia, and endocrine therapy-induced alopecia. They found a supportive benefit of LDOM for lichen planopilaris, frontal fibrosing alopecia, central centrifugal alopecia, and fibrosing alopecia in a patterned distribution.
“LDOM can be considered when topical minoxidil is more expensive, logistically challenging, has plateaued in efficacy, results in undesirable product residue/skin irritation,” or exacerbates inflammatory processes (ie eczema, psoriasis), they added.
Contraindications to LDOM listed in the consensus recommendations include hypersensitivity to minoxidil, significant drug-drug interactions with LDOM, a history of pericardial effusion/tamponade, pericarditis, heart failure, pulmonary hypertension associated with mitral stenosis, pheochromocytoma, and pregnancy/breastfeeding. Cited precautions of LDOM use include a history of tachycardia or arrhythmia, hypotension, renal impairment, and being on dialysis.
Dr. Fu and colleagues noted that the earliest time point at which LDOM should be expected to demonstrate efficacy is 3-6 months. “Baseline testing is not routine but may be considered in case of identified precautions,” they wrote. They also noted that LDOM can possibly be co-administered with beta-blockers with a specialty consultation, and with spironolactone in biologic female or transgender female patients with hirsutism, acne, polycystic ovary syndrome (PCOS), and with lower extremity and facial edema.
According to the consensus statement, the most frequently prescribed LDOM dosing regimen in adult females aged 18 years and older includes a starting dose of 1.25 mg daily, with a dosing range between 0.625 mg and 5 mg daily. For adult males, the most frequently prescribed dosing regimen is a starting dose of 2.5 daily, with a dosing range between 1.25 mg and 5 mg daily. The most frequently prescribed LDOM dosing regimen in adolescent females aged 12-17 years is a starting dose of 0.625 mg daily, with a dosing range of 0.625 to 2.5 mg daily. For adolescent males, the recommended regimen is a starting dose of 1.25 mg daily, with a dosing range of 1.25 mg to 5 mg daily.
“We hope that this consensus statement will guide our colleagues who would like to use LDOM to treat hair loss in their adult and adolescent patients,” Dr. Fu told this news organization. “These recommendations may be used to inform clinical practice until additional evidence-based data becomes available.”
She acknowledged certain limitations of the effort, including the fact that the expert panel was underrepresented in treating hair loss in pediatric patients, “and therefore failed to reach consensus on LDOM pediatric use and dosing,” she said. “We encourage our pediatric dermatology colleagues to further research LDOM in pediatric patients.”
In an interview, Shari Lipner, MD, PhD, associate professor of clinical dermatology, Weill Cornell Medicine, New York, who was asked to comment, but was not involved with the work, characterized the consensus as a “helpful, concise reference guide for dermatologists.”
The advantages of the study are the standardized methods used, “and the experience of the panel,” she said. “Study limitations include the response rate, which was less than 60%, and the risk of potential side effects are not stratified by age, sex, or comorbidities,” she added.
Dr. Fu disclosed that she is a consultant to Pfizer. Dr. Lipner reported having no relevant disclosures.
SAN DIEGO — .
Those are among the key recommendations that resulted from a modified eDelphi consensus of experts who convened to develop guidelines for LDOM prescribing and monitoring.
“Topical minoxidil is safe, effective, over-the-counter, and FDA-approved to treat the most common form of hair loss, androgenetic alopecia,” one of the study authors, Jennifer Fu, MD, a dermatologist who directs the Hair Disorders Clinic at the University of California, San Francisco, told this news organization following the annual meeting of the American Academy of Dermatology. The results of the expert consensus were presented during a poster session at the meeting. “It is often used off label for other types of hair loss, yet clinicians who treat hair loss know that patient compliance with topical minoxidil can be poor for a variety of reasons,” she said. “Patients report that it can be difficult to apply and complicate hair styling. For many patients, topical minoxidil can be drying or cause irritant or allergic contact reactions.”
LDOM has become a popular alternative for patients for whom topical minoxidil is logistically challenging, irritating, or ineffective, she continued. Although oral minoxidil is no longer a first-line antihypertensive agent given the risk of cardiovascular adverse effects at higher antihypertensive dosing (10-40 mg daily), a growing number of small studies have documented the use of LDOM at doses ranging from 0.25 mg to 5 mg daily as a safe, effective option for various types of hair loss.
“Given the current absence of larger trials on this topic, our research group identified a need for expert-based guidelines for prescribing and monitoring LDOM use in hair loss patients,” Dr. Fu said. “Our goal was to provide clinicians who treat hair loss patients a road map for using LDOM effectively, maximizing hair growth, and minimizing potential cardiovascular adverse effects.”
Arriving at a Consensus
The process involved 43 hair loss specialists from 12 countries with an average of 6.29 years of experience with LDOM for hair loss, who participated in a multi-round modified Delphi process. They considered questions that addressed LDOM safety, efficacy, dosing, and monitoring for hair loss, and consensus was reached if at least 70% of participants indicated “agree” or “strongly agree” on a five-point Likert scale. Round 1 consisted of 180 open-ended, multiple-choice, or Likert-scale questions, while round 2 involved 121 Likert-scale questions, round 3 consisted of 16 Likert-scale questions, and round 4 included 11 Likert-scale questions. In all, 94 items achieved Likert-scale consensus.
Specifically, experts on the panel found a direct benefit of LDOM for androgenetic alopecia, age-related patterned thinning, alopecia areata, telogen effluvium, traction alopecia, persistent chemotherapy-induced alopecia, and endocrine therapy-induced alopecia. They found a supportive benefit of LDOM for lichen planopilaris, frontal fibrosing alopecia, central centrifugal alopecia, and fibrosing alopecia in a patterned distribution.
“LDOM can be considered when topical minoxidil is more expensive, logistically challenging, has plateaued in efficacy, results in undesirable product residue/skin irritation,” or exacerbates inflammatory processes (ie eczema, psoriasis), they added.
Contraindications to LDOM listed in the consensus recommendations include hypersensitivity to minoxidil, significant drug-drug interactions with LDOM, a history of pericardial effusion/tamponade, pericarditis, heart failure, pulmonary hypertension associated with mitral stenosis, pheochromocytoma, and pregnancy/breastfeeding. Cited precautions of LDOM use include a history of tachycardia or arrhythmia, hypotension, renal impairment, and being on dialysis.
Dr. Fu and colleagues noted that the earliest time point at which LDOM should be expected to demonstrate efficacy is 3-6 months. “Baseline testing is not routine but may be considered in case of identified precautions,” they wrote. They also noted that LDOM can possibly be co-administered with beta-blockers with a specialty consultation, and with spironolactone in biologic female or transgender female patients with hirsutism, acne, polycystic ovary syndrome (PCOS), and with lower extremity and facial edema.
According to the consensus statement, the most frequently prescribed LDOM dosing regimen in adult females aged 18 years and older includes a starting dose of 1.25 mg daily, with a dosing range between 0.625 mg and 5 mg daily. For adult males, the most frequently prescribed dosing regimen is a starting dose of 2.5 daily, with a dosing range between 1.25 mg and 5 mg daily. The most frequently prescribed LDOM dosing regimen in adolescent females aged 12-17 years is a starting dose of 0.625 mg daily, with a dosing range of 0.625 to 2.5 mg daily. For adolescent males, the recommended regimen is a starting dose of 1.25 mg daily, with a dosing range of 1.25 mg to 5 mg daily.
“We hope that this consensus statement will guide our colleagues who would like to use LDOM to treat hair loss in their adult and adolescent patients,” Dr. Fu told this news organization. “These recommendations may be used to inform clinical practice until additional evidence-based data becomes available.”
She acknowledged certain limitations of the effort, including the fact that the expert panel was underrepresented in treating hair loss in pediatric patients, “and therefore failed to reach consensus on LDOM pediatric use and dosing,” she said. “We encourage our pediatric dermatology colleagues to further research LDOM in pediatric patients.”
In an interview, Shari Lipner, MD, PhD, associate professor of clinical dermatology, Weill Cornell Medicine, New York, who was asked to comment, but was not involved with the work, characterized the consensus as a “helpful, concise reference guide for dermatologists.”
The advantages of the study are the standardized methods used, “and the experience of the panel,” she said. “Study limitations include the response rate, which was less than 60%, and the risk of potential side effects are not stratified by age, sex, or comorbidities,” she added.
Dr. Fu disclosed that she is a consultant to Pfizer. Dr. Lipner reported having no relevant disclosures.
SAN DIEGO — .
Those are among the key recommendations that resulted from a modified eDelphi consensus of experts who convened to develop guidelines for LDOM prescribing and monitoring.
“Topical minoxidil is safe, effective, over-the-counter, and FDA-approved to treat the most common form of hair loss, androgenetic alopecia,” one of the study authors, Jennifer Fu, MD, a dermatologist who directs the Hair Disorders Clinic at the University of California, San Francisco, told this news organization following the annual meeting of the American Academy of Dermatology. The results of the expert consensus were presented during a poster session at the meeting. “It is often used off label for other types of hair loss, yet clinicians who treat hair loss know that patient compliance with topical minoxidil can be poor for a variety of reasons,” she said. “Patients report that it can be difficult to apply and complicate hair styling. For many patients, topical minoxidil can be drying or cause irritant or allergic contact reactions.”
LDOM has become a popular alternative for patients for whom topical minoxidil is logistically challenging, irritating, or ineffective, she continued. Although oral minoxidil is no longer a first-line antihypertensive agent given the risk of cardiovascular adverse effects at higher antihypertensive dosing (10-40 mg daily), a growing number of small studies have documented the use of LDOM at doses ranging from 0.25 mg to 5 mg daily as a safe, effective option for various types of hair loss.
“Given the current absence of larger trials on this topic, our research group identified a need for expert-based guidelines for prescribing and monitoring LDOM use in hair loss patients,” Dr. Fu said. “Our goal was to provide clinicians who treat hair loss patients a road map for using LDOM effectively, maximizing hair growth, and minimizing potential cardiovascular adverse effects.”
Arriving at a Consensus
The process involved 43 hair loss specialists from 12 countries with an average of 6.29 years of experience with LDOM for hair loss, who participated in a multi-round modified Delphi process. They considered questions that addressed LDOM safety, efficacy, dosing, and monitoring for hair loss, and consensus was reached if at least 70% of participants indicated “agree” or “strongly agree” on a five-point Likert scale. Round 1 consisted of 180 open-ended, multiple-choice, or Likert-scale questions, while round 2 involved 121 Likert-scale questions, round 3 consisted of 16 Likert-scale questions, and round 4 included 11 Likert-scale questions. In all, 94 items achieved Likert-scale consensus.
Specifically, experts on the panel found a direct benefit of LDOM for androgenetic alopecia, age-related patterned thinning, alopecia areata, telogen effluvium, traction alopecia, persistent chemotherapy-induced alopecia, and endocrine therapy-induced alopecia. They found a supportive benefit of LDOM for lichen planopilaris, frontal fibrosing alopecia, central centrifugal alopecia, and fibrosing alopecia in a patterned distribution.
“LDOM can be considered when topical minoxidil is more expensive, logistically challenging, has plateaued in efficacy, results in undesirable product residue/skin irritation,” or exacerbates inflammatory processes (ie eczema, psoriasis), they added.
Contraindications to LDOM listed in the consensus recommendations include hypersensitivity to minoxidil, significant drug-drug interactions with LDOM, a history of pericardial effusion/tamponade, pericarditis, heart failure, pulmonary hypertension associated with mitral stenosis, pheochromocytoma, and pregnancy/breastfeeding. Cited precautions of LDOM use include a history of tachycardia or arrhythmia, hypotension, renal impairment, and being on dialysis.
Dr. Fu and colleagues noted that the earliest time point at which LDOM should be expected to demonstrate efficacy is 3-6 months. “Baseline testing is not routine but may be considered in case of identified precautions,” they wrote. They also noted that LDOM can possibly be co-administered with beta-blockers with a specialty consultation, and with spironolactone in biologic female or transgender female patients with hirsutism, acne, polycystic ovary syndrome (PCOS), and with lower extremity and facial edema.
According to the consensus statement, the most frequently prescribed LDOM dosing regimen in adult females aged 18 years and older includes a starting dose of 1.25 mg daily, with a dosing range between 0.625 mg and 5 mg daily. For adult males, the most frequently prescribed dosing regimen is a starting dose of 2.5 daily, with a dosing range between 1.25 mg and 5 mg daily. The most frequently prescribed LDOM dosing regimen in adolescent females aged 12-17 years is a starting dose of 0.625 mg daily, with a dosing range of 0.625 to 2.5 mg daily. For adolescent males, the recommended regimen is a starting dose of 1.25 mg daily, with a dosing range of 1.25 mg to 5 mg daily.
“We hope that this consensus statement will guide our colleagues who would like to use LDOM to treat hair loss in their adult and adolescent patients,” Dr. Fu told this news organization. “These recommendations may be used to inform clinical practice until additional evidence-based data becomes available.”
She acknowledged certain limitations of the effort, including the fact that the expert panel was underrepresented in treating hair loss in pediatric patients, “and therefore failed to reach consensus on LDOM pediatric use and dosing,” she said. “We encourage our pediatric dermatology colleagues to further research LDOM in pediatric patients.”
In an interview, Shari Lipner, MD, PhD, associate professor of clinical dermatology, Weill Cornell Medicine, New York, who was asked to comment, but was not involved with the work, characterized the consensus as a “helpful, concise reference guide for dermatologists.”
The advantages of the study are the standardized methods used, “and the experience of the panel,” she said. “Study limitations include the response rate, which was less than 60%, and the risk of potential side effects are not stratified by age, sex, or comorbidities,” she added.
Dr. Fu disclosed that she is a consultant to Pfizer. Dr. Lipner reported having no relevant disclosures.
FROM AAD 2024