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FDA pulls amputation boxed warning off canagliflozin label
The Food and Drug Administration has removed the boxed warning about the risk of leg and foot amputations for canagliflozin (Invokana, Invokamet, Janssen), a sodium-glucose cotransporter-2 (SGLT2) inhibitor for the treatment of type 2 diabetes, the agency announced Aug. 26.
As previously reported by Medscape Medical News, the FDA added the boxed warning to the canagliflozin label in May 2017, after an approximately doubled risk for lower-extremity amputations with the drug compared with placebo was seen during two trials.
The FDA said the decision to remove the boxed warning was made following a review of new data from three clinical trials, which demonstrated additional heart- and kidney-related benefits and led to additional approved uses for canagliflozin.
In 2018, canagliflozin was approved to reduce the risk of major adverse cardiovascular events in adults with type 2 diabetes who have established cardiovascular disease.
In 2019, canagliflozin was approved to reduce the risk of end-stage kidney disease, worsening of kidney function, cardiovascular death, and heart failure hospitalization, in adults with type 2 diabetes and diabetic kidney disease.
“Collectively, these newly identified effects of canagliflozin on heart and kidney disease show significantly enhanced benefit of this medicine,” the FDA said.
The safety information from these trials, the FDA said, suggests that the risk of amputation, “while still increased with canagliflozin, is lower than previously described, particularly when appropriately monitored.”
The agency added: “Based upon these considerations, FDA concluded that the boxed warning should be removed.”
The FDA announcement said clinicians and patients should continue to be aware of the importance of preventive foot care and to monitor for new pain, tenderness, sores, ulcers, and infections in the legs and feet. Risk factors that may predispose patients to amputation should be considered when choosing antidiabetic medicines.
Health care professionals are encouraged to report adverse reactions with canagliflozin to the FDA’s MedWatch program.
A version of this article originally appeared on Medscape.com.
The Food and Drug Administration has removed the boxed warning about the risk of leg and foot amputations for canagliflozin (Invokana, Invokamet, Janssen), a sodium-glucose cotransporter-2 (SGLT2) inhibitor for the treatment of type 2 diabetes, the agency announced Aug. 26.
As previously reported by Medscape Medical News, the FDA added the boxed warning to the canagliflozin label in May 2017, after an approximately doubled risk for lower-extremity amputations with the drug compared with placebo was seen during two trials.
The FDA said the decision to remove the boxed warning was made following a review of new data from three clinical trials, which demonstrated additional heart- and kidney-related benefits and led to additional approved uses for canagliflozin.
In 2018, canagliflozin was approved to reduce the risk of major adverse cardiovascular events in adults with type 2 diabetes who have established cardiovascular disease.
In 2019, canagliflozin was approved to reduce the risk of end-stage kidney disease, worsening of kidney function, cardiovascular death, and heart failure hospitalization, in adults with type 2 diabetes and diabetic kidney disease.
“Collectively, these newly identified effects of canagliflozin on heart and kidney disease show significantly enhanced benefit of this medicine,” the FDA said.
The safety information from these trials, the FDA said, suggests that the risk of amputation, “while still increased with canagliflozin, is lower than previously described, particularly when appropriately monitored.”
The agency added: “Based upon these considerations, FDA concluded that the boxed warning should be removed.”
The FDA announcement said clinicians and patients should continue to be aware of the importance of preventive foot care and to monitor for new pain, tenderness, sores, ulcers, and infections in the legs and feet. Risk factors that may predispose patients to amputation should be considered when choosing antidiabetic medicines.
Health care professionals are encouraged to report adverse reactions with canagliflozin to the FDA’s MedWatch program.
A version of this article originally appeared on Medscape.com.
The Food and Drug Administration has removed the boxed warning about the risk of leg and foot amputations for canagliflozin (Invokana, Invokamet, Janssen), a sodium-glucose cotransporter-2 (SGLT2) inhibitor for the treatment of type 2 diabetes, the agency announced Aug. 26.
As previously reported by Medscape Medical News, the FDA added the boxed warning to the canagliflozin label in May 2017, after an approximately doubled risk for lower-extremity amputations with the drug compared with placebo was seen during two trials.
The FDA said the decision to remove the boxed warning was made following a review of new data from three clinical trials, which demonstrated additional heart- and kidney-related benefits and led to additional approved uses for canagliflozin.
In 2018, canagliflozin was approved to reduce the risk of major adverse cardiovascular events in adults with type 2 diabetes who have established cardiovascular disease.
In 2019, canagliflozin was approved to reduce the risk of end-stage kidney disease, worsening of kidney function, cardiovascular death, and heart failure hospitalization, in adults with type 2 diabetes and diabetic kidney disease.
“Collectively, these newly identified effects of canagliflozin on heart and kidney disease show significantly enhanced benefit of this medicine,” the FDA said.
The safety information from these trials, the FDA said, suggests that the risk of amputation, “while still increased with canagliflozin, is lower than previously described, particularly when appropriately monitored.”
The agency added: “Based upon these considerations, FDA concluded that the boxed warning should be removed.”
The FDA announcement said clinicians and patients should continue to be aware of the importance of preventive foot care and to monitor for new pain, tenderness, sores, ulcers, and infections in the legs and feet. Risk factors that may predispose patients to amputation should be considered when choosing antidiabetic medicines.
Health care professionals are encouraged to report adverse reactions with canagliflozin to the FDA’s MedWatch program.
A version of this article originally appeared on Medscape.com.
First evidence of SARS-CoV-2 in heart cells
SARS-CoV-2 has been found in cardiac tissue of a child from Brazil with multisystem inflammatory syndrome (MIS-C) related to COVID-19 who presented with myocarditis and died of heart failure.
It’s believed to be the first evidence of direct infection of heart muscle cells by the virus; viral particles were identified in different cell lineages of the heart, including cardiomyocytes, endothelial cells, mesenchymal cells, and inflammatory cells.
The case was described in a report published online August 20 in The Lancet Child & Adolescent Health.
“The presence of the virus in various cell types of cardiac tissue, as evidenced by electron microscopy, shows that myocarditis in this case is likely a direct inflammatory response to the virus infection in the heart,” first author Marisa Dolhnikoff, MD, department of pathology, University of São Paulo, said in an interview.
There have been previous reports in adults with COVID-19 of both SARS-CoV-2 RNA by reverse transcription–polymerase chain reaction (RT-PCR) and viral particles by electron microscopy in cardiac tissue from endomyocardial specimens, the researchers noted. One of these reports, published in April by Tavazzi and colleagues, “detected viral particles in cardiac macrophages in an adult patient with acute cardiac injury associated with COVID-19; no viral particles were seen in cardiomyocytes or endothelial cells.
“Our case report is the first to our knowledge to document the presence of viral particles in the cardiac tissue of a child affected by MIS-C,” they added. “Moreover, viral particles were identified in different cell lineages of the heart, including cardiomyocytes, endothelial cells, mesenchymal cells, and inflammatory cells.”
‘Concerning’ case report
“This is a concerning report as it shows for the first time that the virus can actually invade the heart muscle cells themselves,” C. Michael Gibson, MD, CEO of the Baim Institute for Clinical Research in Boston, said in an interview.
“Previous reports of COVID-19 and the heart found that the virus was in the area outside the heart muscle cells. We do not know yet the relative contribution of the inflammatory cells invading the heart, the release of blood-borne inflammatory mediators, and the virus inside the heart muscle cells themselves to heart damage,” Dr. Gibson said.
The patient was a previously healthy 11-year-old girl of African descent with MIS-C related to COVID-19. She developed cardiac failure and died after 1 day in the hospital, despite aggressive treatment.
SARS-CoV-2 RNA was detected on a postmortem nasopharyngeal swab and in cardiac and pulmonary tissues by RT-PCR.
Postmortem ultrasound examination of the heart showed a “hyperechogenic and diffusely thickened endocardium (mean thickness, 10 mm), a thickened myocardium (18 mm thick in the left ventricle), and a small pericardial effusion,” Dr. Dolhnikoff and colleagues reported.
Histopathologic exam revealed myocarditis, pericarditis, and endocarditis characterized by infiltration of inflammatory cells. Inflammation was mainly interstitial and perivascular, associated with foci of cardiomyocyte necrosis and was mainly composed of CD68+ macrophages, a few CD45+ lymphocytes, and a few neutrophils and eosinophils.
Electron microscopy of cardiac tissue revealed spherical viral particles in shape and size consistent with the Coronaviridae family in the extracellular compartment and within cardiomyocytes, capillary endothelial cells, endocardium endothelial cells, macrophages, neutrophils, and fibroblasts.
Microthrombi in the pulmonary arterioles and renal glomerular capillaries were also seen at autopsy. SARS-CoV-2–associated pneumonia was mild.
Lymphoid depletion and signs of hemophagocytosis were observed in the spleen and lymph nodes. Acute tubular necrosis in the kidneys and hepatic centrilobular necrosis, secondary to shock, were also seen. Brain tissue showed microglial reactivity.
“Fortunately, MIS-C is a rare event and, although it can be severe and life threatening, most children recover,” Dr. Dolhnikoff commented.
“This case report comes at a time when the scientific community around the world calls attention to MIS-C and the need for it to be quickly recognized and treated by the pediatric community. Evidence of a direct relation between the virus and myocarditis confirms that MIS-C is one of the possible forms of presentation of COVID-19 and that the heart may be the target organ. It also alerts clinicians to possible cardiac sequelae in these children,” she added.
Experts weigh in
Scott Aydin, MD, medical director of pediatric cardiac intensive care, Mount Sinai Kravis Children’s Hospital in New York City, said that this case report is “unfortunately not all that surprising.
“Since the initial presentations of MIS-C several months ago, we have suspected mechanisms of direct and indirect injury to the myocardium. This important work is just the next step in further understanding the mechanisms of how COVID-19 creates havoc in the human body and the choices of possible therapies we have to treat children with COVID-19 and MIS-C,” said Dr. Aydin, who was not involved with the case report.
Anish Koka, MD, a cardiologist in private practice in Philadelphia, noted that, in these cases, endomyocardial biopsy is “rarely done because it is fairly invasive, but even when it has been done, the pathologic findings are of widespread inflammation rather than virus-induced cell necrosis.”
“While reports like this are sure to spawn viral tweets, it’s vital to understand that it’s not unusual to find widespread organ dissemination of virus in very sick patients. This does not mean that the virus is causing dysfunction of the organ it happens to be found in,” Dr. Koka said in an interview.
He noted that, in the case of the young girl who died, it took high PCR-cycle threshold values to isolate virus from the lung and heart samples.
“This means there was a low viral load in both organs, supporting the theory of SARS-CoV-2 as a potential trigger of a widespread inflammatory response that results in organ damage, rather than the virus itself infecting and destroying organs,” said Dr. Koka, who was also not associated with the case report.
This research had no specific funding. The authors declared no competing interests. Dr. Aydin disclosed no relevant financial relationships. Dr. Koka disclosed financial relationships with Boehringer Ingelheim and Jardiance.
This article first appeared on Medscape.com.
SARS-CoV-2 has been found in cardiac tissue of a child from Brazil with multisystem inflammatory syndrome (MIS-C) related to COVID-19 who presented with myocarditis and died of heart failure.
It’s believed to be the first evidence of direct infection of heart muscle cells by the virus; viral particles were identified in different cell lineages of the heart, including cardiomyocytes, endothelial cells, mesenchymal cells, and inflammatory cells.
The case was described in a report published online August 20 in The Lancet Child & Adolescent Health.
“The presence of the virus in various cell types of cardiac tissue, as evidenced by electron microscopy, shows that myocarditis in this case is likely a direct inflammatory response to the virus infection in the heart,” first author Marisa Dolhnikoff, MD, department of pathology, University of São Paulo, said in an interview.
There have been previous reports in adults with COVID-19 of both SARS-CoV-2 RNA by reverse transcription–polymerase chain reaction (RT-PCR) and viral particles by electron microscopy in cardiac tissue from endomyocardial specimens, the researchers noted. One of these reports, published in April by Tavazzi and colleagues, “detected viral particles in cardiac macrophages in an adult patient with acute cardiac injury associated with COVID-19; no viral particles were seen in cardiomyocytes or endothelial cells.
“Our case report is the first to our knowledge to document the presence of viral particles in the cardiac tissue of a child affected by MIS-C,” they added. “Moreover, viral particles were identified in different cell lineages of the heart, including cardiomyocytes, endothelial cells, mesenchymal cells, and inflammatory cells.”
‘Concerning’ case report
“This is a concerning report as it shows for the first time that the virus can actually invade the heart muscle cells themselves,” C. Michael Gibson, MD, CEO of the Baim Institute for Clinical Research in Boston, said in an interview.
“Previous reports of COVID-19 and the heart found that the virus was in the area outside the heart muscle cells. We do not know yet the relative contribution of the inflammatory cells invading the heart, the release of blood-borne inflammatory mediators, and the virus inside the heart muscle cells themselves to heart damage,” Dr. Gibson said.
The patient was a previously healthy 11-year-old girl of African descent with MIS-C related to COVID-19. She developed cardiac failure and died after 1 day in the hospital, despite aggressive treatment.
SARS-CoV-2 RNA was detected on a postmortem nasopharyngeal swab and in cardiac and pulmonary tissues by RT-PCR.
Postmortem ultrasound examination of the heart showed a “hyperechogenic and diffusely thickened endocardium (mean thickness, 10 mm), a thickened myocardium (18 mm thick in the left ventricle), and a small pericardial effusion,” Dr. Dolhnikoff and colleagues reported.
Histopathologic exam revealed myocarditis, pericarditis, and endocarditis characterized by infiltration of inflammatory cells. Inflammation was mainly interstitial and perivascular, associated with foci of cardiomyocyte necrosis and was mainly composed of CD68+ macrophages, a few CD45+ lymphocytes, and a few neutrophils and eosinophils.
Electron microscopy of cardiac tissue revealed spherical viral particles in shape and size consistent with the Coronaviridae family in the extracellular compartment and within cardiomyocytes, capillary endothelial cells, endocardium endothelial cells, macrophages, neutrophils, and fibroblasts.
Microthrombi in the pulmonary arterioles and renal glomerular capillaries were also seen at autopsy. SARS-CoV-2–associated pneumonia was mild.
Lymphoid depletion and signs of hemophagocytosis were observed in the spleen and lymph nodes. Acute tubular necrosis in the kidneys and hepatic centrilobular necrosis, secondary to shock, were also seen. Brain tissue showed microglial reactivity.
“Fortunately, MIS-C is a rare event and, although it can be severe and life threatening, most children recover,” Dr. Dolhnikoff commented.
“This case report comes at a time when the scientific community around the world calls attention to MIS-C and the need for it to be quickly recognized and treated by the pediatric community. Evidence of a direct relation between the virus and myocarditis confirms that MIS-C is one of the possible forms of presentation of COVID-19 and that the heart may be the target organ. It also alerts clinicians to possible cardiac sequelae in these children,” she added.
Experts weigh in
Scott Aydin, MD, medical director of pediatric cardiac intensive care, Mount Sinai Kravis Children’s Hospital in New York City, said that this case report is “unfortunately not all that surprising.
“Since the initial presentations of MIS-C several months ago, we have suspected mechanisms of direct and indirect injury to the myocardium. This important work is just the next step in further understanding the mechanisms of how COVID-19 creates havoc in the human body and the choices of possible therapies we have to treat children with COVID-19 and MIS-C,” said Dr. Aydin, who was not involved with the case report.
Anish Koka, MD, a cardiologist in private practice in Philadelphia, noted that, in these cases, endomyocardial biopsy is “rarely done because it is fairly invasive, but even when it has been done, the pathologic findings are of widespread inflammation rather than virus-induced cell necrosis.”
“While reports like this are sure to spawn viral tweets, it’s vital to understand that it’s not unusual to find widespread organ dissemination of virus in very sick patients. This does not mean that the virus is causing dysfunction of the organ it happens to be found in,” Dr. Koka said in an interview.
He noted that, in the case of the young girl who died, it took high PCR-cycle threshold values to isolate virus from the lung and heart samples.
“This means there was a low viral load in both organs, supporting the theory of SARS-CoV-2 as a potential trigger of a widespread inflammatory response that results in organ damage, rather than the virus itself infecting and destroying organs,” said Dr. Koka, who was also not associated with the case report.
This research had no specific funding. The authors declared no competing interests. Dr. Aydin disclosed no relevant financial relationships. Dr. Koka disclosed financial relationships with Boehringer Ingelheim and Jardiance.
This article first appeared on Medscape.com.
SARS-CoV-2 has been found in cardiac tissue of a child from Brazil with multisystem inflammatory syndrome (MIS-C) related to COVID-19 who presented with myocarditis and died of heart failure.
It’s believed to be the first evidence of direct infection of heart muscle cells by the virus; viral particles were identified in different cell lineages of the heart, including cardiomyocytes, endothelial cells, mesenchymal cells, and inflammatory cells.
The case was described in a report published online August 20 in The Lancet Child & Adolescent Health.
“The presence of the virus in various cell types of cardiac tissue, as evidenced by electron microscopy, shows that myocarditis in this case is likely a direct inflammatory response to the virus infection in the heart,” first author Marisa Dolhnikoff, MD, department of pathology, University of São Paulo, said in an interview.
There have been previous reports in adults with COVID-19 of both SARS-CoV-2 RNA by reverse transcription–polymerase chain reaction (RT-PCR) and viral particles by electron microscopy in cardiac tissue from endomyocardial specimens, the researchers noted. One of these reports, published in April by Tavazzi and colleagues, “detected viral particles in cardiac macrophages in an adult patient with acute cardiac injury associated with COVID-19; no viral particles were seen in cardiomyocytes or endothelial cells.
“Our case report is the first to our knowledge to document the presence of viral particles in the cardiac tissue of a child affected by MIS-C,” they added. “Moreover, viral particles were identified in different cell lineages of the heart, including cardiomyocytes, endothelial cells, mesenchymal cells, and inflammatory cells.”
‘Concerning’ case report
“This is a concerning report as it shows for the first time that the virus can actually invade the heart muscle cells themselves,” C. Michael Gibson, MD, CEO of the Baim Institute for Clinical Research in Boston, said in an interview.
“Previous reports of COVID-19 and the heart found that the virus was in the area outside the heart muscle cells. We do not know yet the relative contribution of the inflammatory cells invading the heart, the release of blood-borne inflammatory mediators, and the virus inside the heart muscle cells themselves to heart damage,” Dr. Gibson said.
The patient was a previously healthy 11-year-old girl of African descent with MIS-C related to COVID-19. She developed cardiac failure and died after 1 day in the hospital, despite aggressive treatment.
SARS-CoV-2 RNA was detected on a postmortem nasopharyngeal swab and in cardiac and pulmonary tissues by RT-PCR.
Postmortem ultrasound examination of the heart showed a “hyperechogenic and diffusely thickened endocardium (mean thickness, 10 mm), a thickened myocardium (18 mm thick in the left ventricle), and a small pericardial effusion,” Dr. Dolhnikoff and colleagues reported.
Histopathologic exam revealed myocarditis, pericarditis, and endocarditis characterized by infiltration of inflammatory cells. Inflammation was mainly interstitial and perivascular, associated with foci of cardiomyocyte necrosis and was mainly composed of CD68+ macrophages, a few CD45+ lymphocytes, and a few neutrophils and eosinophils.
Electron microscopy of cardiac tissue revealed spherical viral particles in shape and size consistent with the Coronaviridae family in the extracellular compartment and within cardiomyocytes, capillary endothelial cells, endocardium endothelial cells, macrophages, neutrophils, and fibroblasts.
Microthrombi in the pulmonary arterioles and renal glomerular capillaries were also seen at autopsy. SARS-CoV-2–associated pneumonia was mild.
Lymphoid depletion and signs of hemophagocytosis were observed in the spleen and lymph nodes. Acute tubular necrosis in the kidneys and hepatic centrilobular necrosis, secondary to shock, were also seen. Brain tissue showed microglial reactivity.
“Fortunately, MIS-C is a rare event and, although it can be severe and life threatening, most children recover,” Dr. Dolhnikoff commented.
“This case report comes at a time when the scientific community around the world calls attention to MIS-C and the need for it to be quickly recognized and treated by the pediatric community. Evidence of a direct relation between the virus and myocarditis confirms that MIS-C is one of the possible forms of presentation of COVID-19 and that the heart may be the target organ. It also alerts clinicians to possible cardiac sequelae in these children,” she added.
Experts weigh in
Scott Aydin, MD, medical director of pediatric cardiac intensive care, Mount Sinai Kravis Children’s Hospital in New York City, said that this case report is “unfortunately not all that surprising.
“Since the initial presentations of MIS-C several months ago, we have suspected mechanisms of direct and indirect injury to the myocardium. This important work is just the next step in further understanding the mechanisms of how COVID-19 creates havoc in the human body and the choices of possible therapies we have to treat children with COVID-19 and MIS-C,” said Dr. Aydin, who was not involved with the case report.
Anish Koka, MD, a cardiologist in private practice in Philadelphia, noted that, in these cases, endomyocardial biopsy is “rarely done because it is fairly invasive, but even when it has been done, the pathologic findings are of widespread inflammation rather than virus-induced cell necrosis.”
“While reports like this are sure to spawn viral tweets, it’s vital to understand that it’s not unusual to find widespread organ dissemination of virus in very sick patients. This does not mean that the virus is causing dysfunction of the organ it happens to be found in,” Dr. Koka said in an interview.
He noted that, in the case of the young girl who died, it took high PCR-cycle threshold values to isolate virus from the lung and heart samples.
“This means there was a low viral load in both organs, supporting the theory of SARS-CoV-2 as a potential trigger of a widespread inflammatory response that results in organ damage, rather than the virus itself infecting and destroying organs,” said Dr. Koka, who was also not associated with the case report.
This research had no specific funding. The authors declared no competing interests. Dr. Aydin disclosed no relevant financial relationships. Dr. Koka disclosed financial relationships with Boehringer Ingelheim and Jardiance.
This article first appeared on Medscape.com.
FDA clears first brain stimulation device to help smokers quit
The Food and Drug Administration has granted marketing approval for the BrainsWay deep transcranial magnetic stimulation (TMS) system to help adult smokers kick tobacco.
in a press release.
As previously reported, the system has already been approved by the FDA as a treatment for patients suffering from obsessive-compulsive disorder and major depressive disorder.
The BrainsWay deep TMS system with H4-coil is designed to target addiction-related brain circuits.
It was evaluated as an aid to short-term smoking cessation in a prospective, double-blind, randomized, sham-controlled, multicenter study that involved 262 adults who had a history of smoking an average of more than 26 years and had attempted to quit multiple times but failed.
Active and sham treatments were performed daily 5 days a week for 3 weeks, followed by an additional three sessions once weekly for 3 weeks, for a total of 18 sessions over 6 weeks.
In the full intention-to-treat population (all 262 participants), the 4-week continuous quit rate (CQR, the primary endpoint) was higher in the active deep TMS group than in the sham TMS group (17.1% vs. 7.9%; P = .0238).
Among participants who completed the study, that is, those who underwent treatment for 4 weeks, who kept daily records, and for whom confirmatory urine samples were available, the CQR was 28.4% in the active deep TMS group, compared with 11.7% in the sham treatment group (P = .0063).
The average number of cigarettes smoked per day, as determined on the basis of daily records (secondary endpoint), was statistically significantly lower in the active deep TMS group, compared with the sham treatment group (P = .0311).
No patient suffered a seizure. The most common adverse event was headache, for which there was no statistical difference between the active and sham treatment groups. Other side effects included application site discomfort, back pain, muscle twitching, and discomfort.
“This FDA clearance represents a significant milestone for BrainsWay and our deep TMS platform technology,” Christopher von Jako, PhD, president and CEO of the company, said in the release.
“While other therapies are currently available, a substantial medical need continues to exist for treatments that can increase the continuous quit rate among smokers,” Dr. von Jako noted.
“Based on the compelling data from our large, randomized pivotal study of 262 subjects, we are confident that our deep TMS technology can play an important role in treating cigarette smokers who seek to quit,” he added.
The company plans a “controlled” U.S. market release of the system for this indication early next year.
A version of this article originally appeared on Medscape.com.
The Food and Drug Administration has granted marketing approval for the BrainsWay deep transcranial magnetic stimulation (TMS) system to help adult smokers kick tobacco.
in a press release.
As previously reported, the system has already been approved by the FDA as a treatment for patients suffering from obsessive-compulsive disorder and major depressive disorder.
The BrainsWay deep TMS system with H4-coil is designed to target addiction-related brain circuits.
It was evaluated as an aid to short-term smoking cessation in a prospective, double-blind, randomized, sham-controlled, multicenter study that involved 262 adults who had a history of smoking an average of more than 26 years and had attempted to quit multiple times but failed.
Active and sham treatments were performed daily 5 days a week for 3 weeks, followed by an additional three sessions once weekly for 3 weeks, for a total of 18 sessions over 6 weeks.
In the full intention-to-treat population (all 262 participants), the 4-week continuous quit rate (CQR, the primary endpoint) was higher in the active deep TMS group than in the sham TMS group (17.1% vs. 7.9%; P = .0238).
Among participants who completed the study, that is, those who underwent treatment for 4 weeks, who kept daily records, and for whom confirmatory urine samples were available, the CQR was 28.4% in the active deep TMS group, compared with 11.7% in the sham treatment group (P = .0063).
The average number of cigarettes smoked per day, as determined on the basis of daily records (secondary endpoint), was statistically significantly lower in the active deep TMS group, compared with the sham treatment group (P = .0311).
No patient suffered a seizure. The most common adverse event was headache, for which there was no statistical difference between the active and sham treatment groups. Other side effects included application site discomfort, back pain, muscle twitching, and discomfort.
“This FDA clearance represents a significant milestone for BrainsWay and our deep TMS platform technology,” Christopher von Jako, PhD, president and CEO of the company, said in the release.
“While other therapies are currently available, a substantial medical need continues to exist for treatments that can increase the continuous quit rate among smokers,” Dr. von Jako noted.
“Based on the compelling data from our large, randomized pivotal study of 262 subjects, we are confident that our deep TMS technology can play an important role in treating cigarette smokers who seek to quit,” he added.
The company plans a “controlled” U.S. market release of the system for this indication early next year.
A version of this article originally appeared on Medscape.com.
The Food and Drug Administration has granted marketing approval for the BrainsWay deep transcranial magnetic stimulation (TMS) system to help adult smokers kick tobacco.
in a press release.
As previously reported, the system has already been approved by the FDA as a treatment for patients suffering from obsessive-compulsive disorder and major depressive disorder.
The BrainsWay deep TMS system with H4-coil is designed to target addiction-related brain circuits.
It was evaluated as an aid to short-term smoking cessation in a prospective, double-blind, randomized, sham-controlled, multicenter study that involved 262 adults who had a history of smoking an average of more than 26 years and had attempted to quit multiple times but failed.
Active and sham treatments were performed daily 5 days a week for 3 weeks, followed by an additional three sessions once weekly for 3 weeks, for a total of 18 sessions over 6 weeks.
In the full intention-to-treat population (all 262 participants), the 4-week continuous quit rate (CQR, the primary endpoint) was higher in the active deep TMS group than in the sham TMS group (17.1% vs. 7.9%; P = .0238).
Among participants who completed the study, that is, those who underwent treatment for 4 weeks, who kept daily records, and for whom confirmatory urine samples were available, the CQR was 28.4% in the active deep TMS group, compared with 11.7% in the sham treatment group (P = .0063).
The average number of cigarettes smoked per day, as determined on the basis of daily records (secondary endpoint), was statistically significantly lower in the active deep TMS group, compared with the sham treatment group (P = .0311).
No patient suffered a seizure. The most common adverse event was headache, for which there was no statistical difference between the active and sham treatment groups. Other side effects included application site discomfort, back pain, muscle twitching, and discomfort.
“This FDA clearance represents a significant milestone for BrainsWay and our deep TMS platform technology,” Christopher von Jako, PhD, president and CEO of the company, said in the release.
“While other therapies are currently available, a substantial medical need continues to exist for treatments that can increase the continuous quit rate among smokers,” Dr. von Jako noted.
“Based on the compelling data from our large, randomized pivotal study of 262 subjects, we are confident that our deep TMS technology can play an important role in treating cigarette smokers who seek to quit,” he added.
The company plans a “controlled” U.S. market release of the system for this indication early next year.
A version of this article originally appeared on Medscape.com.
COVID-19 linked to development of myasthenia gravis
Myasthenia gravis should be added to the growing list of potential neurological sequelae associated with COVID-19, new research suggests. Clinicians from Italy have described what they believe are
“I think it is possible that there could be many more cases,” said lead author Domenico Restivo, MD, of the Garibaldi Hospital, Catania, Italy. “In fact, myasthenia gravis could be underestimated especially in the course of COVID-19 infection in which a specific muscular weakness is frequently present. For this reason, this association is easy to miss if not top of mind,” Dr. Restivo said.
None of the three patients had previous neurologic or autoimmune disorders. In all three cases, symptoms of myasthenia gravis appeared within 5-7 days after onset of fever caused by SARS-CoV-2 infection. The time from presumed SARS-CoV-2 infection to myasthenia gravis symptoms “is consistent with the time from infection to symptoms in other neurologic disorders triggered by infections,” the investigators reported.
The findings were published online August 10 in Annals of Internal Medicine.
First patients
The first patient described in the report was a 64-year-old man who had a fever as high as 39° C (102.2° F) for 4 days. Five days after fever onset, he developed diplopia and muscle fatigue. The patient’s neurologic examination was “unremarkable.” Computed tomography (CT) of the thorax excluded thymoma, and findings on chest radiograph were normal. He tested positive for SARS-CoV-2 on nasopharyngeal swab and real-time reverse transcriptase polymerase chain reaction (RT-PCR).
The patient’s symptoms led the investigators to suspect myasthenia gravis. Repetitive stimulation of the patient’s facial nerve showed a 57% decrement, confirming involvement of the postsynaptic neuromuscular junction. The concentration of AChR antibodies in serum was also elevated (22.8 pmol/L; reference range, <0.4 pmol/L). The patient was treated with pyridostigmine bromide and prednisone and had a response “typical for someone with myasthenia gravis,” the researchers wrote.
The second patient was a 68-year-old man who had a fever as high as 38.8° C (101.8° F) for 7 days. On day 7, he developed muscle fatigue, diplopia, and dysphagia. Findings of a chest CT and neurologic exam were normal. Nasopharyngeal swab and RT-PCR testing for COVID-19 were positive. As with the first patient, myasthenia gravis was suspected because of the patient’s symptoms. Repetitive nerve stimulation revealed a postsynaptic deficit of neuromuscular transmission of the facial (52%) and ulnar (21%) nerves. His serum AChR antibody level was elevated (27.6 pmol/L). The patient improved after one cycle of intravenous immunoglobulin treatment.
Possible mechanisms
The third patient was a 71-year-old woman with cough and a fever up to 38.6° C (101.5° F) for 6 days. She initially tested negative for SARS-CoV-2 on nasopharyngeal swab and RT-PCR. Five days after her symptoms began, she developed bilateral ocular ptosis, diplopia, and hypophonia. CT of the thorax excluded thymoma but showed bilateral interstitial pneumonia. On day 6, she developed dysphagia and respiratory failure, and was transferred to the ICU where she received mechanical ventilation.
Repetitive nerve stimulation revealed a postsynaptic deficit of neuromuscular transmission of the ulnar nerve (56%), and her serum AChR antibody level was elevated (35.6 pmol/L). Five days later, a second nasopharyngeal swab test for SARS-CoV-2 was positive. The patient improved following plasmapheresis treatment and was successfully extubated.
The investigators noted that this patient received hydroxychloroquine the day after the onset of neurologic symptoms, but the drug was withdrawn a day later, so they do not believe that it caused the symptoms of myasthenia gravis.
The observations in these three patients are “consistent with reports of other infections that induce autoimmune disorders, as well as with the growing evidence of other neurologic disorders with presumed autoimmune mechanisms after COVID-19 onset,” the researchers wrote.
They offered several possible explanations for the link between COVID-19 and myasthenia gravis. “Antibodies that are directed against SARS-CoV-2 proteins may cross-react with AChR subunits, because the virus has epitopes that are similar to components of the neuromuscular junction; this is known to occur in other neurologic autoimmune disorders after infection. Alternatively, COVID-19 infection may break immunologic self-tolerance,” the investigators wrote.
“The main message for clinicians is that myasthenia gravis, as well as other neurological disorders associated with autoimmunity, could occur in the course of SARS-CoV-2 infection,” Dr. Restivo said. Prompt recognition of the disease “could lead to a drug treatment that limits its evolution as quickly as possible,” he added.
An “unmasking”
Commenting on the findings, Anthony Geraci, MD, director of neuromuscular medicine, Northwell Health, Great Neck, N.Y., said these case reports of myasthenia gravis after SARS-CoV-2 infection are “not unique or novel as there has been a long understanding that seropositive [AChR antibody-positive] myasthenia gravis can and is frequently ‘unmasked’ in the setting” of several viral and bacterial infections.
“Antibodies in myasthenia gravis are of a type that take several weeks to develop to measurable levels as in the reported cases by Restivo et al., giving strong support to the notion that subclinical myasthenia gravis can be immunologically upregulated in the setting of viral infection and this is a far more likely explanation of the observed association reported,” added Dr. Geraci, who was not involved with the research.
He noted that, at his institution, “we have also observed ocular myasthenia gravis emerge in patients with SARS-CoV-2 infection, with similar double vision and lid droop, as we have seen similarly in patients with Zika, West Nile, and other viral infections, as well as a multiplicity of bacterial infections.”
“Most of our observed patients have responded to treatment much the same as reported by the three cases from Restivo and colleagues,” Dr.Geraci reported.
The authors of the study disclosed no conflicts of interest.
A version of this article originally appeared on Medscape.com.
Myasthenia gravis should be added to the growing list of potential neurological sequelae associated with COVID-19, new research suggests. Clinicians from Italy have described what they believe are
“I think it is possible that there could be many more cases,” said lead author Domenico Restivo, MD, of the Garibaldi Hospital, Catania, Italy. “In fact, myasthenia gravis could be underestimated especially in the course of COVID-19 infection in which a specific muscular weakness is frequently present. For this reason, this association is easy to miss if not top of mind,” Dr. Restivo said.
None of the three patients had previous neurologic or autoimmune disorders. In all three cases, symptoms of myasthenia gravis appeared within 5-7 days after onset of fever caused by SARS-CoV-2 infection. The time from presumed SARS-CoV-2 infection to myasthenia gravis symptoms “is consistent with the time from infection to symptoms in other neurologic disorders triggered by infections,” the investigators reported.
The findings were published online August 10 in Annals of Internal Medicine.
First patients
The first patient described in the report was a 64-year-old man who had a fever as high as 39° C (102.2° F) for 4 days. Five days after fever onset, he developed diplopia and muscle fatigue. The patient’s neurologic examination was “unremarkable.” Computed tomography (CT) of the thorax excluded thymoma, and findings on chest radiograph were normal. He tested positive for SARS-CoV-2 on nasopharyngeal swab and real-time reverse transcriptase polymerase chain reaction (RT-PCR).
The patient’s symptoms led the investigators to suspect myasthenia gravis. Repetitive stimulation of the patient’s facial nerve showed a 57% decrement, confirming involvement of the postsynaptic neuromuscular junction. The concentration of AChR antibodies in serum was also elevated (22.8 pmol/L; reference range, <0.4 pmol/L). The patient was treated with pyridostigmine bromide and prednisone and had a response “typical for someone with myasthenia gravis,” the researchers wrote.
The second patient was a 68-year-old man who had a fever as high as 38.8° C (101.8° F) for 7 days. On day 7, he developed muscle fatigue, diplopia, and dysphagia. Findings of a chest CT and neurologic exam were normal. Nasopharyngeal swab and RT-PCR testing for COVID-19 were positive. As with the first patient, myasthenia gravis was suspected because of the patient’s symptoms. Repetitive nerve stimulation revealed a postsynaptic deficit of neuromuscular transmission of the facial (52%) and ulnar (21%) nerves. His serum AChR antibody level was elevated (27.6 pmol/L). The patient improved after one cycle of intravenous immunoglobulin treatment.
Possible mechanisms
The third patient was a 71-year-old woman with cough and a fever up to 38.6° C (101.5° F) for 6 days. She initially tested negative for SARS-CoV-2 on nasopharyngeal swab and RT-PCR. Five days after her symptoms began, she developed bilateral ocular ptosis, diplopia, and hypophonia. CT of the thorax excluded thymoma but showed bilateral interstitial pneumonia. On day 6, she developed dysphagia and respiratory failure, and was transferred to the ICU where she received mechanical ventilation.
Repetitive nerve stimulation revealed a postsynaptic deficit of neuromuscular transmission of the ulnar nerve (56%), and her serum AChR antibody level was elevated (35.6 pmol/L). Five days later, a second nasopharyngeal swab test for SARS-CoV-2 was positive. The patient improved following plasmapheresis treatment and was successfully extubated.
The investigators noted that this patient received hydroxychloroquine the day after the onset of neurologic symptoms, but the drug was withdrawn a day later, so they do not believe that it caused the symptoms of myasthenia gravis.
The observations in these three patients are “consistent with reports of other infections that induce autoimmune disorders, as well as with the growing evidence of other neurologic disorders with presumed autoimmune mechanisms after COVID-19 onset,” the researchers wrote.
They offered several possible explanations for the link between COVID-19 and myasthenia gravis. “Antibodies that are directed against SARS-CoV-2 proteins may cross-react with AChR subunits, because the virus has epitopes that are similar to components of the neuromuscular junction; this is known to occur in other neurologic autoimmune disorders after infection. Alternatively, COVID-19 infection may break immunologic self-tolerance,” the investigators wrote.
“The main message for clinicians is that myasthenia gravis, as well as other neurological disorders associated with autoimmunity, could occur in the course of SARS-CoV-2 infection,” Dr. Restivo said. Prompt recognition of the disease “could lead to a drug treatment that limits its evolution as quickly as possible,” he added.
An “unmasking”
Commenting on the findings, Anthony Geraci, MD, director of neuromuscular medicine, Northwell Health, Great Neck, N.Y., said these case reports of myasthenia gravis after SARS-CoV-2 infection are “not unique or novel as there has been a long understanding that seropositive [AChR antibody-positive] myasthenia gravis can and is frequently ‘unmasked’ in the setting” of several viral and bacterial infections.
“Antibodies in myasthenia gravis are of a type that take several weeks to develop to measurable levels as in the reported cases by Restivo et al., giving strong support to the notion that subclinical myasthenia gravis can be immunologically upregulated in the setting of viral infection and this is a far more likely explanation of the observed association reported,” added Dr. Geraci, who was not involved with the research.
He noted that, at his institution, “we have also observed ocular myasthenia gravis emerge in patients with SARS-CoV-2 infection, with similar double vision and lid droop, as we have seen similarly in patients with Zika, West Nile, and other viral infections, as well as a multiplicity of bacterial infections.”
“Most of our observed patients have responded to treatment much the same as reported by the three cases from Restivo and colleagues,” Dr.Geraci reported.
The authors of the study disclosed no conflicts of interest.
A version of this article originally appeared on Medscape.com.
Myasthenia gravis should be added to the growing list of potential neurological sequelae associated with COVID-19, new research suggests. Clinicians from Italy have described what they believe are
“I think it is possible that there could be many more cases,” said lead author Domenico Restivo, MD, of the Garibaldi Hospital, Catania, Italy. “In fact, myasthenia gravis could be underestimated especially in the course of COVID-19 infection in which a specific muscular weakness is frequently present. For this reason, this association is easy to miss if not top of mind,” Dr. Restivo said.
None of the three patients had previous neurologic or autoimmune disorders. In all three cases, symptoms of myasthenia gravis appeared within 5-7 days after onset of fever caused by SARS-CoV-2 infection. The time from presumed SARS-CoV-2 infection to myasthenia gravis symptoms “is consistent with the time from infection to symptoms in other neurologic disorders triggered by infections,” the investigators reported.
The findings were published online August 10 in Annals of Internal Medicine.
First patients
The first patient described in the report was a 64-year-old man who had a fever as high as 39° C (102.2° F) for 4 days. Five days after fever onset, he developed diplopia and muscle fatigue. The patient’s neurologic examination was “unremarkable.” Computed tomography (CT) of the thorax excluded thymoma, and findings on chest radiograph were normal. He tested positive for SARS-CoV-2 on nasopharyngeal swab and real-time reverse transcriptase polymerase chain reaction (RT-PCR).
The patient’s symptoms led the investigators to suspect myasthenia gravis. Repetitive stimulation of the patient’s facial nerve showed a 57% decrement, confirming involvement of the postsynaptic neuromuscular junction. The concentration of AChR antibodies in serum was also elevated (22.8 pmol/L; reference range, <0.4 pmol/L). The patient was treated with pyridostigmine bromide and prednisone and had a response “typical for someone with myasthenia gravis,” the researchers wrote.
The second patient was a 68-year-old man who had a fever as high as 38.8° C (101.8° F) for 7 days. On day 7, he developed muscle fatigue, diplopia, and dysphagia. Findings of a chest CT and neurologic exam were normal. Nasopharyngeal swab and RT-PCR testing for COVID-19 were positive. As with the first patient, myasthenia gravis was suspected because of the patient’s symptoms. Repetitive nerve stimulation revealed a postsynaptic deficit of neuromuscular transmission of the facial (52%) and ulnar (21%) nerves. His serum AChR antibody level was elevated (27.6 pmol/L). The patient improved after one cycle of intravenous immunoglobulin treatment.
Possible mechanisms
The third patient was a 71-year-old woman with cough and a fever up to 38.6° C (101.5° F) for 6 days. She initially tested negative for SARS-CoV-2 on nasopharyngeal swab and RT-PCR. Five days after her symptoms began, she developed bilateral ocular ptosis, diplopia, and hypophonia. CT of the thorax excluded thymoma but showed bilateral interstitial pneumonia. On day 6, she developed dysphagia and respiratory failure, and was transferred to the ICU where she received mechanical ventilation.
Repetitive nerve stimulation revealed a postsynaptic deficit of neuromuscular transmission of the ulnar nerve (56%), and her serum AChR antibody level was elevated (35.6 pmol/L). Five days later, a second nasopharyngeal swab test for SARS-CoV-2 was positive. The patient improved following plasmapheresis treatment and was successfully extubated.
The investigators noted that this patient received hydroxychloroquine the day after the onset of neurologic symptoms, but the drug was withdrawn a day later, so they do not believe that it caused the symptoms of myasthenia gravis.
The observations in these three patients are “consistent with reports of other infections that induce autoimmune disorders, as well as with the growing evidence of other neurologic disorders with presumed autoimmune mechanisms after COVID-19 onset,” the researchers wrote.
They offered several possible explanations for the link between COVID-19 and myasthenia gravis. “Antibodies that are directed against SARS-CoV-2 proteins may cross-react with AChR subunits, because the virus has epitopes that are similar to components of the neuromuscular junction; this is known to occur in other neurologic autoimmune disorders after infection. Alternatively, COVID-19 infection may break immunologic self-tolerance,” the investigators wrote.
“The main message for clinicians is that myasthenia gravis, as well as other neurological disorders associated with autoimmunity, could occur in the course of SARS-CoV-2 infection,” Dr. Restivo said. Prompt recognition of the disease “could lead to a drug treatment that limits its evolution as quickly as possible,” he added.
An “unmasking”
Commenting on the findings, Anthony Geraci, MD, director of neuromuscular medicine, Northwell Health, Great Neck, N.Y., said these case reports of myasthenia gravis after SARS-CoV-2 infection are “not unique or novel as there has been a long understanding that seropositive [AChR antibody-positive] myasthenia gravis can and is frequently ‘unmasked’ in the setting” of several viral and bacterial infections.
“Antibodies in myasthenia gravis are of a type that take several weeks to develop to measurable levels as in the reported cases by Restivo et al., giving strong support to the notion that subclinical myasthenia gravis can be immunologically upregulated in the setting of viral infection and this is a far more likely explanation of the observed association reported,” added Dr. Geraci, who was not involved with the research.
He noted that, at his institution, “we have also observed ocular myasthenia gravis emerge in patients with SARS-CoV-2 infection, with similar double vision and lid droop, as we have seen similarly in patients with Zika, West Nile, and other viral infections, as well as a multiplicity of bacterial infections.”
“Most of our observed patients have responded to treatment much the same as reported by the three cases from Restivo and colleagues,” Dr.Geraci reported.
The authors of the study disclosed no conflicts of interest.
A version of this article originally appeared on Medscape.com.
Oleander extract for COVID-19? That’s a hard ‘no’ experts say
“Though renowned for its beauty and use in landscaping, this Mediterranean shrub is responsible for cases of accidental poisoning across the globe. All parts of the plant are poisonous,” Cassandra Quave, PhD, ethnobotanist and herbarium curator at Emory University, Atlanta, cautioned in an article in The Conversation, an independent, not-for-profit publication.
Oleandrin has properties similar to digoxin; the onset of toxicity occurs several hours after consumption.
The first symptoms of oleandrin poisoning may be gastrointestinal, such as nausea, vomiting, abdominal pain, diarrhea (which may contain blood), and loss of appetite.
After these first symptoms, the heart may be affected by tachyarrhythmia, bradyarrhythmia, premature ventricular contractions, or atrioventricular blockage. Xanthopsia (yellow vision), a burning sensation in the eyes, paralysis of the gastrointestinal tract, and respiratory symptoms may also occur.
Oleandrin poisoning may affect the central nervous system, as evidenced by drowsiness, tremors, seizures, collapse, and coma leading to death. When applied to the skin, oleander sap can cause skin irritations and allergic reactions characterized by dermatitis.
Diagnosis of oleandrin poisoning is mainly made on the basis of a description of the plant, how much of it was ingested, how much time has elapsed since ingestion, and symptoms. Confirmation of oleandrin in blood involves fluorescence polarization immunoassay, digoxin immunoassay, or liquid chromatography-electrospray tandem mass spectrometry.
Neither oleander nor oleandrin is approved by regulatory agencies as a prescription drug or dietary supplement.
In vitro study
Oleandrin for COVID-19 made headlines after President Trump met in the Oval Office with Andrew Whitney, vice chairman and director of Phoenix Biotechnology, along with Housing and Urban Development Secretary Ben Carson, MD, and MyPillow founder/CEO Mike Lindell, a strong supporter of Trump and an investor in the biotech company, to learn about oleandrin, which Whitney called a “cure” for COVID-19, Axios reported.
In an in vitro study, researchers from Phoenix Biotechnology and the University of Texas Medical Branch, Galveston, tested oleandrin against SARS-CoV-2 in cultured Vero cells.
“When administered both before and after virus infection, nanogram doses of oleandrin significantly inhibited replication by 45 to 3000-fold,” the researchers said in an article posted on bioRxiv, a free online archive and distribution service for unpublished preprints in the life sciences. The study has not been peer reviewed.
On the basis of these in vitro findings, the researchers said the plant extract has “potential to prevent disease and virus spread in persons recently exposed to SARS-CoV-2, as well as to prevent severe disease in persons at high risk.”
But it’s a far cry from test tube to human, one expert cautioned.
“This is an understatement: Care must be taken when inferring potential therapeutic benefits from in vitro antiviral effects,” Harlan Krumholz, MD, cardiologist and director, Yale New Haven Hospital Center for Outcomes Research and Evaluation, New Haven, Connecticut, told Medscape Medical News.
“There is a chasm between a single in vitro study and any use in humans outside of a protocol. People should be cautioned about that distance and the need [to] avoid such remedies unless part of a credible research project,” said Krumholz.
Yet Lindell told Axios that, in the Oval Office meeting, Trump expressed enthusiasm for the Food and Drug Administration to allow oleandrin to be marketed as a dietary supplement or approved for COVID-19.
“This is really just nonsense and a distraction,” Jonathan Reiner, MD, of George Washington University Medical Center, Washington, DC, said on CNN.
This article first appeared on Medscape.com.
“Though renowned for its beauty and use in landscaping, this Mediterranean shrub is responsible for cases of accidental poisoning across the globe. All parts of the plant are poisonous,” Cassandra Quave, PhD, ethnobotanist and herbarium curator at Emory University, Atlanta, cautioned in an article in The Conversation, an independent, not-for-profit publication.
Oleandrin has properties similar to digoxin; the onset of toxicity occurs several hours after consumption.
The first symptoms of oleandrin poisoning may be gastrointestinal, such as nausea, vomiting, abdominal pain, diarrhea (which may contain blood), and loss of appetite.
After these first symptoms, the heart may be affected by tachyarrhythmia, bradyarrhythmia, premature ventricular contractions, or atrioventricular blockage. Xanthopsia (yellow vision), a burning sensation in the eyes, paralysis of the gastrointestinal tract, and respiratory symptoms may also occur.
Oleandrin poisoning may affect the central nervous system, as evidenced by drowsiness, tremors, seizures, collapse, and coma leading to death. When applied to the skin, oleander sap can cause skin irritations and allergic reactions characterized by dermatitis.
Diagnosis of oleandrin poisoning is mainly made on the basis of a description of the plant, how much of it was ingested, how much time has elapsed since ingestion, and symptoms. Confirmation of oleandrin in blood involves fluorescence polarization immunoassay, digoxin immunoassay, or liquid chromatography-electrospray tandem mass spectrometry.
Neither oleander nor oleandrin is approved by regulatory agencies as a prescription drug or dietary supplement.
In vitro study
Oleandrin for COVID-19 made headlines after President Trump met in the Oval Office with Andrew Whitney, vice chairman and director of Phoenix Biotechnology, along with Housing and Urban Development Secretary Ben Carson, MD, and MyPillow founder/CEO Mike Lindell, a strong supporter of Trump and an investor in the biotech company, to learn about oleandrin, which Whitney called a “cure” for COVID-19, Axios reported.
In an in vitro study, researchers from Phoenix Biotechnology and the University of Texas Medical Branch, Galveston, tested oleandrin against SARS-CoV-2 in cultured Vero cells.
“When administered both before and after virus infection, nanogram doses of oleandrin significantly inhibited replication by 45 to 3000-fold,” the researchers said in an article posted on bioRxiv, a free online archive and distribution service for unpublished preprints in the life sciences. The study has not been peer reviewed.
On the basis of these in vitro findings, the researchers said the plant extract has “potential to prevent disease and virus spread in persons recently exposed to SARS-CoV-2, as well as to prevent severe disease in persons at high risk.”
But it’s a far cry from test tube to human, one expert cautioned.
“This is an understatement: Care must be taken when inferring potential therapeutic benefits from in vitro antiviral effects,” Harlan Krumholz, MD, cardiologist and director, Yale New Haven Hospital Center for Outcomes Research and Evaluation, New Haven, Connecticut, told Medscape Medical News.
“There is a chasm between a single in vitro study and any use in humans outside of a protocol. People should be cautioned about that distance and the need [to] avoid such remedies unless part of a credible research project,” said Krumholz.
Yet Lindell told Axios that, in the Oval Office meeting, Trump expressed enthusiasm for the Food and Drug Administration to allow oleandrin to be marketed as a dietary supplement or approved for COVID-19.
“This is really just nonsense and a distraction,” Jonathan Reiner, MD, of George Washington University Medical Center, Washington, DC, said on CNN.
This article first appeared on Medscape.com.
“Though renowned for its beauty and use in landscaping, this Mediterranean shrub is responsible for cases of accidental poisoning across the globe. All parts of the plant are poisonous,” Cassandra Quave, PhD, ethnobotanist and herbarium curator at Emory University, Atlanta, cautioned in an article in The Conversation, an independent, not-for-profit publication.
Oleandrin has properties similar to digoxin; the onset of toxicity occurs several hours after consumption.
The first symptoms of oleandrin poisoning may be gastrointestinal, such as nausea, vomiting, abdominal pain, diarrhea (which may contain blood), and loss of appetite.
After these first symptoms, the heart may be affected by tachyarrhythmia, bradyarrhythmia, premature ventricular contractions, or atrioventricular blockage. Xanthopsia (yellow vision), a burning sensation in the eyes, paralysis of the gastrointestinal tract, and respiratory symptoms may also occur.
Oleandrin poisoning may affect the central nervous system, as evidenced by drowsiness, tremors, seizures, collapse, and coma leading to death. When applied to the skin, oleander sap can cause skin irritations and allergic reactions characterized by dermatitis.
Diagnosis of oleandrin poisoning is mainly made on the basis of a description of the plant, how much of it was ingested, how much time has elapsed since ingestion, and symptoms. Confirmation of oleandrin in blood involves fluorescence polarization immunoassay, digoxin immunoassay, or liquid chromatography-electrospray tandem mass spectrometry.
Neither oleander nor oleandrin is approved by regulatory agencies as a prescription drug or dietary supplement.
In vitro study
Oleandrin for COVID-19 made headlines after President Trump met in the Oval Office with Andrew Whitney, vice chairman and director of Phoenix Biotechnology, along with Housing and Urban Development Secretary Ben Carson, MD, and MyPillow founder/CEO Mike Lindell, a strong supporter of Trump and an investor in the biotech company, to learn about oleandrin, which Whitney called a “cure” for COVID-19, Axios reported.
In an in vitro study, researchers from Phoenix Biotechnology and the University of Texas Medical Branch, Galveston, tested oleandrin against SARS-CoV-2 in cultured Vero cells.
“When administered both before and after virus infection, nanogram doses of oleandrin significantly inhibited replication by 45 to 3000-fold,” the researchers said in an article posted on bioRxiv, a free online archive and distribution service for unpublished preprints in the life sciences. The study has not been peer reviewed.
On the basis of these in vitro findings, the researchers said the plant extract has “potential to prevent disease and virus spread in persons recently exposed to SARS-CoV-2, as well as to prevent severe disease in persons at high risk.”
But it’s a far cry from test tube to human, one expert cautioned.
“This is an understatement: Care must be taken when inferring potential therapeutic benefits from in vitro antiviral effects,” Harlan Krumholz, MD, cardiologist and director, Yale New Haven Hospital Center for Outcomes Research and Evaluation, New Haven, Connecticut, told Medscape Medical News.
“There is a chasm between a single in vitro study and any use in humans outside of a protocol. People should be cautioned about that distance and the need [to] avoid such remedies unless part of a credible research project,” said Krumholz.
Yet Lindell told Axios that, in the Oval Office meeting, Trump expressed enthusiasm for the Food and Drug Administration to allow oleandrin to be marketed as a dietary supplement or approved for COVID-19.
“This is really just nonsense and a distraction,” Jonathan Reiner, MD, of George Washington University Medical Center, Washington, DC, said on CNN.
This article first appeared on Medscape.com.
CDC data confirm mental health is suffering during COVID-19
The ongoing COVID-19 pandemic continues to exact a huge toll on mental health in the United States, according to results of a survey released Aug. 13 by the Centers for Disease Control and Prevention.
During late June, about two in five U.S. adults surveyed said they were struggling with mental health or substance use. Younger adults, racial/ethnic minorities, essential workers, and those with preexisting psychiatric conditions were suffering the most.
“Addressing mental health disparities and preparing support systems to mitigate mental health consequences as the pandemic evolves will continue to be needed urgently,” write Rashon Lane, with the CDC COVID-19 Response Team, and colleagues in an article published online in the CDC’s Morbidity and Mortality Weekly Report.
During the period of June 24-30, 2020, 5,412 U.S. adults aged 18 and older completed online surveys that gauged mental health, substance use, and suicidal ideation.
Overall, 40.9% of respondents reported having at least one adverse mental or behavioral health condition; 31% reported symptoms of anxiety or depressive disorder; and 26% reported symptoms of a trauma- and stressor-related disorder related to the pandemic.
The prevalence of symptoms of anxiety disorder alone was roughly three times that reported in the second quarter of 2019, the authors noted.
In addition, , and nearly 11% reported having seriously considered suicide in the preceding 30 days.
Approximately twice as many respondents reported seriously considering suicide in the prior month compared with adults in the United States in 2018 (referring to the previous 12 months), the authors noted.
Suicidal ideation was significantly higher among younger respondents (aged 18-24 years, 26%), Hispanic persons (19%), non-Hispanic Black persons (15%), unpaid caregivers for adults (31%), and essential workers (22%).
The survey results are in line with recent data from Mental Health America, which indicate dramatic increases in depression, anxiety, and suicidality since the start of the COVID-19 pandemic.
The “markedly elevated” prevalence of adverse mental and behavioral health conditions associated with the COVID-19 pandemic highlights the “broad impact of the pandemic and the need to prevent and treat these conditions,” the researchers wrote.
The survey also highlights populations at increased risk for psychological distress and unhealthy coping.
“Future studies should identify drivers of adverse mental and behavioral health during the COVID-19 pandemic and whether factors such as social isolation, absence of school structure, unemployment and other financial worries, and various forms of violence (e.g., physical, emotional, mental, or sexual abuse) serve as additional stressors,” they suggested.
A version of this article originally appeared on Medscape.com.
The ongoing COVID-19 pandemic continues to exact a huge toll on mental health in the United States, according to results of a survey released Aug. 13 by the Centers for Disease Control and Prevention.
During late June, about two in five U.S. adults surveyed said they were struggling with mental health or substance use. Younger adults, racial/ethnic minorities, essential workers, and those with preexisting psychiatric conditions were suffering the most.
“Addressing mental health disparities and preparing support systems to mitigate mental health consequences as the pandemic evolves will continue to be needed urgently,” write Rashon Lane, with the CDC COVID-19 Response Team, and colleagues in an article published online in the CDC’s Morbidity and Mortality Weekly Report.
During the period of June 24-30, 2020, 5,412 U.S. adults aged 18 and older completed online surveys that gauged mental health, substance use, and suicidal ideation.
Overall, 40.9% of respondents reported having at least one adverse mental or behavioral health condition; 31% reported symptoms of anxiety or depressive disorder; and 26% reported symptoms of a trauma- and stressor-related disorder related to the pandemic.
The prevalence of symptoms of anxiety disorder alone was roughly three times that reported in the second quarter of 2019, the authors noted.
In addition, , and nearly 11% reported having seriously considered suicide in the preceding 30 days.
Approximately twice as many respondents reported seriously considering suicide in the prior month compared with adults in the United States in 2018 (referring to the previous 12 months), the authors noted.
Suicidal ideation was significantly higher among younger respondents (aged 18-24 years, 26%), Hispanic persons (19%), non-Hispanic Black persons (15%), unpaid caregivers for adults (31%), and essential workers (22%).
The survey results are in line with recent data from Mental Health America, which indicate dramatic increases in depression, anxiety, and suicidality since the start of the COVID-19 pandemic.
The “markedly elevated” prevalence of adverse mental and behavioral health conditions associated with the COVID-19 pandemic highlights the “broad impact of the pandemic and the need to prevent and treat these conditions,” the researchers wrote.
The survey also highlights populations at increased risk for psychological distress and unhealthy coping.
“Future studies should identify drivers of adverse mental and behavioral health during the COVID-19 pandemic and whether factors such as social isolation, absence of school structure, unemployment and other financial worries, and various forms of violence (e.g., physical, emotional, mental, or sexual abuse) serve as additional stressors,” they suggested.
A version of this article originally appeared on Medscape.com.
The ongoing COVID-19 pandemic continues to exact a huge toll on mental health in the United States, according to results of a survey released Aug. 13 by the Centers for Disease Control and Prevention.
During late June, about two in five U.S. adults surveyed said they were struggling with mental health or substance use. Younger adults, racial/ethnic minorities, essential workers, and those with preexisting psychiatric conditions were suffering the most.
“Addressing mental health disparities and preparing support systems to mitigate mental health consequences as the pandemic evolves will continue to be needed urgently,” write Rashon Lane, with the CDC COVID-19 Response Team, and colleagues in an article published online in the CDC’s Morbidity and Mortality Weekly Report.
During the period of June 24-30, 2020, 5,412 U.S. adults aged 18 and older completed online surveys that gauged mental health, substance use, and suicidal ideation.
Overall, 40.9% of respondents reported having at least one adverse mental or behavioral health condition; 31% reported symptoms of anxiety or depressive disorder; and 26% reported symptoms of a trauma- and stressor-related disorder related to the pandemic.
The prevalence of symptoms of anxiety disorder alone was roughly three times that reported in the second quarter of 2019, the authors noted.
In addition, , and nearly 11% reported having seriously considered suicide in the preceding 30 days.
Approximately twice as many respondents reported seriously considering suicide in the prior month compared with adults in the United States in 2018 (referring to the previous 12 months), the authors noted.
Suicidal ideation was significantly higher among younger respondents (aged 18-24 years, 26%), Hispanic persons (19%), non-Hispanic Black persons (15%), unpaid caregivers for adults (31%), and essential workers (22%).
The survey results are in line with recent data from Mental Health America, which indicate dramatic increases in depression, anxiety, and suicidality since the start of the COVID-19 pandemic.
The “markedly elevated” prevalence of adverse mental and behavioral health conditions associated with the COVID-19 pandemic highlights the “broad impact of the pandemic and the need to prevent and treat these conditions,” the researchers wrote.
The survey also highlights populations at increased risk for psychological distress and unhealthy coping.
“Future studies should identify drivers of adverse mental and behavioral health during the COVID-19 pandemic and whether factors such as social isolation, absence of school structure, unemployment and other financial worries, and various forms of violence (e.g., physical, emotional, mental, or sexual abuse) serve as additional stressors,” they suggested.
A version of this article originally appeared on Medscape.com.
FDA approves viltolarsen (Viltepso) for Duchenne muscular dystrophy
The FDA approved golodirsen (Vyondys 53, Sarepta Therapeutics) for this indication last year.
“The FDA is committed to fostering drug development for serious neurological disorders like Duchenne muscular dystrophy,” Billy Dunn, MD, director, Office of Neuroscience of the FDA’s Center for Drug Evaluation and Research, said in a statement.
The approval of viltolarsen provides “an important treatment option for Duchenne muscular dystrophy patients with this confirmed mutation,” Dr. Dunn said.
Viltolarsen is an antisense oligonucleotide that promotes production of functional dystrophin by masking exon 53 in the dystrophin gene. It was evaluated in two studies involving 32 male patients.
In one study of 16 patients, the increase in dystrophin production was established in eight patients receiving viltolarsen at the recommended dose. In this study, dystrophin levels increased, on average, from 0.6% of normal at baseline to 5.9% of normal at week 25.
The increase in dystrophin production is “reasonably likely to predict clinical benefit,” but a “clinical benefit of the drug has not been established,” the FDA said.
In making the decision, the FDA considered the potential risks associated with the drug, the life-threatening and debilitating nature of the disease, and the lack of available therapies.
Viltolarsen was approved under the FDA’s accelerated approval pathway, which provides for the approval of drugs that treat serious or life-threatening diseases and generally offer a meaningful advantage over existing treatments.
As part of the accelerated approval, the FDA requires the company to do a clinical trial to confirm the drug’s clinical benefit. If the trial fails to verify clinical benefit, the FDA may start proceedings to withdraw approval of the drug, the agency said.
The most common side effects with viltolarsen are upper respiratory tract infection, injection-site reaction, cough, and fever.
Kidney toxicity was not observed in the clinical studies, but the clinical experience with the drug is limited, and kidney toxicity, including potentially fatal glomerulonephritis, has been observed with some antisense oligonucleotides.
“Kidney function should be monitored in patients taking Viltepso,” the FDA advises.
A version of this article originally appeared on Medscape.com.
The FDA approved golodirsen (Vyondys 53, Sarepta Therapeutics) for this indication last year.
“The FDA is committed to fostering drug development for serious neurological disorders like Duchenne muscular dystrophy,” Billy Dunn, MD, director, Office of Neuroscience of the FDA’s Center for Drug Evaluation and Research, said in a statement.
The approval of viltolarsen provides “an important treatment option for Duchenne muscular dystrophy patients with this confirmed mutation,” Dr. Dunn said.
Viltolarsen is an antisense oligonucleotide that promotes production of functional dystrophin by masking exon 53 in the dystrophin gene. It was evaluated in two studies involving 32 male patients.
In one study of 16 patients, the increase in dystrophin production was established in eight patients receiving viltolarsen at the recommended dose. In this study, dystrophin levels increased, on average, from 0.6% of normal at baseline to 5.9% of normal at week 25.
The increase in dystrophin production is “reasonably likely to predict clinical benefit,” but a “clinical benefit of the drug has not been established,” the FDA said.
In making the decision, the FDA considered the potential risks associated with the drug, the life-threatening and debilitating nature of the disease, and the lack of available therapies.
Viltolarsen was approved under the FDA’s accelerated approval pathway, which provides for the approval of drugs that treat serious or life-threatening diseases and generally offer a meaningful advantage over existing treatments.
As part of the accelerated approval, the FDA requires the company to do a clinical trial to confirm the drug’s clinical benefit. If the trial fails to verify clinical benefit, the FDA may start proceedings to withdraw approval of the drug, the agency said.
The most common side effects with viltolarsen are upper respiratory tract infection, injection-site reaction, cough, and fever.
Kidney toxicity was not observed in the clinical studies, but the clinical experience with the drug is limited, and kidney toxicity, including potentially fatal glomerulonephritis, has been observed with some antisense oligonucleotides.
“Kidney function should be monitored in patients taking Viltepso,” the FDA advises.
A version of this article originally appeared on Medscape.com.
The FDA approved golodirsen (Vyondys 53, Sarepta Therapeutics) for this indication last year.
“The FDA is committed to fostering drug development for serious neurological disorders like Duchenne muscular dystrophy,” Billy Dunn, MD, director, Office of Neuroscience of the FDA’s Center for Drug Evaluation and Research, said in a statement.
The approval of viltolarsen provides “an important treatment option for Duchenne muscular dystrophy patients with this confirmed mutation,” Dr. Dunn said.
Viltolarsen is an antisense oligonucleotide that promotes production of functional dystrophin by masking exon 53 in the dystrophin gene. It was evaluated in two studies involving 32 male patients.
In one study of 16 patients, the increase in dystrophin production was established in eight patients receiving viltolarsen at the recommended dose. In this study, dystrophin levels increased, on average, from 0.6% of normal at baseline to 5.9% of normal at week 25.
The increase in dystrophin production is “reasonably likely to predict clinical benefit,” but a “clinical benefit of the drug has not been established,” the FDA said.
In making the decision, the FDA considered the potential risks associated with the drug, the life-threatening and debilitating nature of the disease, and the lack of available therapies.
Viltolarsen was approved under the FDA’s accelerated approval pathway, which provides for the approval of drugs that treat serious or life-threatening diseases and generally offer a meaningful advantage over existing treatments.
As part of the accelerated approval, the FDA requires the company to do a clinical trial to confirm the drug’s clinical benefit. If the trial fails to verify clinical benefit, the FDA may start proceedings to withdraw approval of the drug, the agency said.
The most common side effects with viltolarsen are upper respiratory tract infection, injection-site reaction, cough, and fever.
Kidney toxicity was not observed in the clinical studies, but the clinical experience with the drug is limited, and kidney toxicity, including potentially fatal glomerulonephritis, has been observed with some antisense oligonucleotides.
“Kidney function should be monitored in patients taking Viltepso,” the FDA advises.
A version of this article originally appeared on Medscape.com.
Experimental nonstimulant effective, fast-acting for ADHD
The experimental nonstimulant medication viloxazine extended-release, known as SPN-812, reduced symptoms of attention-deficit/hyperactivity disorder (ADHD) as soon as 1 week after dosing and was well tolerated in a randomized, placebo-controlled phase 3 study that included more than 400 children.
In addition to its fast onset of action, the fact that it was effective for both inattentive and hyperactive/impulsive clusters of symptoms is “impressive,” study investigator Andrew Cutler, MD, clinical professor of psychiatry, SUNY Upstate Medical University, Syracuse, N.Y., said in an interviews.
Also noteworthy was the improvement in measures of quality of life and function, “especially function in the areas of school, home life, family relations, and peer relationships, which can be really disrupted with ADHD,” Dr. Cutler said.
The findings were published online July 25 in Clinical Therapeutics.
Novel modulating agent
Viloxazine extended-release is a novel multimodal serotonergic and noradrenergic modulating agent with activity at serotonin receptors and the norepinephrine transporter.
About two-thirds were boys.
All participants had an ADHD-Rating Scale–5 (ADHD-RS-5) score of at least 28 and a Clinical Global Impression–Severity score of at least 4. None had taken ADHD medication for at least 1 week prior to randomization.
The intent-to-treat population included 460 children. Of these, 155 were randomly assigned to receive placebo, 147 to receive viloxazine 100 mg, and 158 to receive viloxazine 200 mg.
The primary efficacy endpoint was change from baseline in ADHD-RS-5 total score at week 6. Score changes for both the 100-mg (P = .0004) and the 200-mg (P < .0001) viloxazine groups met statistical significance compared with the placebo group.
Change from baseline in both the ADHD-RS-5 inattention and hyperactivity/impulsivity subscale scores was also significantly reduced in the 100-mg (P = .0006 and .0026, respectively) and 200-mg (P < .0001 and P < .0001, respectively) treatment groups compared with the placebo group.
Improvements occurred after 1 week of treatment and were maintained throughout the 6-week trial, “indicating an early and sustained effect,” the investigators wrote.
FDA target action date
The Clinical Global Impression–Improvement (CGI-I) score at 6 weeks was significantly improved in those receiving 100 mg (P = .0020) and 200 mg (P < .0001) of the active treatment compared with placebo.
The CGI-I responder rate, the percentage of children with a CGI-I score of 1 (very much improved) or 2 (much improved), was significantly higher at 6 weeks with viloxazine 100 mg and 200 mg vs. placebo (45% and 51% vs. 30%, respectively; P = .0065 and P = .0002).
These standard investigator-rated assessments were supported by two parent self-rated assessments: the Conners 3–Parent Short Form and the Weiss Functional Impairment Rating Scale–Parent Form.
Parents noted improvement not only in their children’s ADHD symptoms but also in ADHD-associated learning problems, executive functioning, defiance/aggression, peer relations, and functioning in different settings.
At both doses, once-daily viloxazine was generally well tolerated, with a low rate of discontinuation because of adverse events (<5%). Most adverse events were characterized as mild or moderate in severity and included somnolence (8.9%), decreased appetite (6.0%), and headache (5.4%).
On the basis of results of this study and others, the Food and Drug Administration accepted the company’s new drug application for viloxazine extended-release for ADHD in children and adolescents. The application has a target action date of Nov. 8, 2020.
Potential advantages
Commenting on the study in an interview, Dean Elbe, PharmD, clinical pharmacy specialist, child and adolescent mental health, BC Children’s Hospital, Vancouver, B.C., said that use of viloxazine to treat ADHD is “interesting.”
Dr. Elbe, who was not involved with the current research, noted that “it is actually an old drug that has been around since the mid-1970s in Europe as an antidepressant. It was removed from the market due to poor sales, not safety issues.”
Overall, on the basis of this study, viloxazine has potential to offer “modest improvements” over atomoxetine (Strattera), and the dosing may be “more straightforward and somewhat less challenging than with atomoxetine, with no taper up and no adjustment for poor 2D6 metabolizers,” Dr. Elbe noted.
“The onset of action appears somewhat quicker than we typically see with atomoxetine, so that is also helpful for parent and clinician acceptance and partially overcomes a perceived barrier with atomoxetine,” he said.
Dr. Elbe said he wonders, however, whether viloxazine will show “real-world clinical utility for both hyperactive-impulsive as well as inattentive symptoms. Although the study shows efficacy in both symptom clusters, so did the atomoxetine RCTs, and this has not been the clinical impression for atomoxetine.”
The study was funded by Supernus Pharmaceuticals. Dr. Cutler is a consultant for Supernus, as well as for Adlon Therapeutics, Aevi Genomics, Akili Interactive, Arbor Pharmaceuticals, Ironshore, KemPharm, Lundbeck, Neos Therapeutics, NLS Pharma, Otsuka, Purdue, Shire, Sunovion, Takeda, and Tris Pharma. He has received speaker/promotional honoraria from Adlon Therapeutics, Arbor Pharmaceuticals, Lundbeck, Neos Therapeutics, Otsuka, Shire, Sunovion, Takeda, and Tris Pharma and has received research grants from Aevi Genomics, Akili Interactive, Arbor Pharmaceuticals, Ironshore, KemPharm, Lundbeck, Neos Therapeutics, Otsuka, Purdue, Shire, Sunovion, Supernus Pharmaceuticals, Takeda, and Tris Pharma. A complete list of disclosures for the other authors is available in the original article. Dr. Elbe has reported no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
The experimental nonstimulant medication viloxazine extended-release, known as SPN-812, reduced symptoms of attention-deficit/hyperactivity disorder (ADHD) as soon as 1 week after dosing and was well tolerated in a randomized, placebo-controlled phase 3 study that included more than 400 children.
In addition to its fast onset of action, the fact that it was effective for both inattentive and hyperactive/impulsive clusters of symptoms is “impressive,” study investigator Andrew Cutler, MD, clinical professor of psychiatry, SUNY Upstate Medical University, Syracuse, N.Y., said in an interviews.
Also noteworthy was the improvement in measures of quality of life and function, “especially function in the areas of school, home life, family relations, and peer relationships, which can be really disrupted with ADHD,” Dr. Cutler said.
The findings were published online July 25 in Clinical Therapeutics.
Novel modulating agent
Viloxazine extended-release is a novel multimodal serotonergic and noradrenergic modulating agent with activity at serotonin receptors and the norepinephrine transporter.
About two-thirds were boys.
All participants had an ADHD-Rating Scale–5 (ADHD-RS-5) score of at least 28 and a Clinical Global Impression–Severity score of at least 4. None had taken ADHD medication for at least 1 week prior to randomization.
The intent-to-treat population included 460 children. Of these, 155 were randomly assigned to receive placebo, 147 to receive viloxazine 100 mg, and 158 to receive viloxazine 200 mg.
The primary efficacy endpoint was change from baseline in ADHD-RS-5 total score at week 6. Score changes for both the 100-mg (P = .0004) and the 200-mg (P < .0001) viloxazine groups met statistical significance compared with the placebo group.
Change from baseline in both the ADHD-RS-5 inattention and hyperactivity/impulsivity subscale scores was also significantly reduced in the 100-mg (P = .0006 and .0026, respectively) and 200-mg (P < .0001 and P < .0001, respectively) treatment groups compared with the placebo group.
Improvements occurred after 1 week of treatment and were maintained throughout the 6-week trial, “indicating an early and sustained effect,” the investigators wrote.
FDA target action date
The Clinical Global Impression–Improvement (CGI-I) score at 6 weeks was significantly improved in those receiving 100 mg (P = .0020) and 200 mg (P < .0001) of the active treatment compared with placebo.
The CGI-I responder rate, the percentage of children with a CGI-I score of 1 (very much improved) or 2 (much improved), was significantly higher at 6 weeks with viloxazine 100 mg and 200 mg vs. placebo (45% and 51% vs. 30%, respectively; P = .0065 and P = .0002).
These standard investigator-rated assessments were supported by two parent self-rated assessments: the Conners 3–Parent Short Form and the Weiss Functional Impairment Rating Scale–Parent Form.
Parents noted improvement not only in their children’s ADHD symptoms but also in ADHD-associated learning problems, executive functioning, defiance/aggression, peer relations, and functioning in different settings.
At both doses, once-daily viloxazine was generally well tolerated, with a low rate of discontinuation because of adverse events (<5%). Most adverse events were characterized as mild or moderate in severity and included somnolence (8.9%), decreased appetite (6.0%), and headache (5.4%).
On the basis of results of this study and others, the Food and Drug Administration accepted the company’s new drug application for viloxazine extended-release for ADHD in children and adolescents. The application has a target action date of Nov. 8, 2020.
Potential advantages
Commenting on the study in an interview, Dean Elbe, PharmD, clinical pharmacy specialist, child and adolescent mental health, BC Children’s Hospital, Vancouver, B.C., said that use of viloxazine to treat ADHD is “interesting.”
Dr. Elbe, who was not involved with the current research, noted that “it is actually an old drug that has been around since the mid-1970s in Europe as an antidepressant. It was removed from the market due to poor sales, not safety issues.”
Overall, on the basis of this study, viloxazine has potential to offer “modest improvements” over atomoxetine (Strattera), and the dosing may be “more straightforward and somewhat less challenging than with atomoxetine, with no taper up and no adjustment for poor 2D6 metabolizers,” Dr. Elbe noted.
“The onset of action appears somewhat quicker than we typically see with atomoxetine, so that is also helpful for parent and clinician acceptance and partially overcomes a perceived barrier with atomoxetine,” he said.
Dr. Elbe said he wonders, however, whether viloxazine will show “real-world clinical utility for both hyperactive-impulsive as well as inattentive symptoms. Although the study shows efficacy in both symptom clusters, so did the atomoxetine RCTs, and this has not been the clinical impression for atomoxetine.”
The study was funded by Supernus Pharmaceuticals. Dr. Cutler is a consultant for Supernus, as well as for Adlon Therapeutics, Aevi Genomics, Akili Interactive, Arbor Pharmaceuticals, Ironshore, KemPharm, Lundbeck, Neos Therapeutics, NLS Pharma, Otsuka, Purdue, Shire, Sunovion, Takeda, and Tris Pharma. He has received speaker/promotional honoraria from Adlon Therapeutics, Arbor Pharmaceuticals, Lundbeck, Neos Therapeutics, Otsuka, Shire, Sunovion, Takeda, and Tris Pharma and has received research grants from Aevi Genomics, Akili Interactive, Arbor Pharmaceuticals, Ironshore, KemPharm, Lundbeck, Neos Therapeutics, Otsuka, Purdue, Shire, Sunovion, Supernus Pharmaceuticals, Takeda, and Tris Pharma. A complete list of disclosures for the other authors is available in the original article. Dr. Elbe has reported no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
The experimental nonstimulant medication viloxazine extended-release, known as SPN-812, reduced symptoms of attention-deficit/hyperactivity disorder (ADHD) as soon as 1 week after dosing and was well tolerated in a randomized, placebo-controlled phase 3 study that included more than 400 children.
In addition to its fast onset of action, the fact that it was effective for both inattentive and hyperactive/impulsive clusters of symptoms is “impressive,” study investigator Andrew Cutler, MD, clinical professor of psychiatry, SUNY Upstate Medical University, Syracuse, N.Y., said in an interviews.
Also noteworthy was the improvement in measures of quality of life and function, “especially function in the areas of school, home life, family relations, and peer relationships, which can be really disrupted with ADHD,” Dr. Cutler said.
The findings were published online July 25 in Clinical Therapeutics.
Novel modulating agent
Viloxazine extended-release is a novel multimodal serotonergic and noradrenergic modulating agent with activity at serotonin receptors and the norepinephrine transporter.
About two-thirds were boys.
All participants had an ADHD-Rating Scale–5 (ADHD-RS-5) score of at least 28 and a Clinical Global Impression–Severity score of at least 4. None had taken ADHD medication for at least 1 week prior to randomization.
The intent-to-treat population included 460 children. Of these, 155 were randomly assigned to receive placebo, 147 to receive viloxazine 100 mg, and 158 to receive viloxazine 200 mg.
The primary efficacy endpoint was change from baseline in ADHD-RS-5 total score at week 6. Score changes for both the 100-mg (P = .0004) and the 200-mg (P < .0001) viloxazine groups met statistical significance compared with the placebo group.
Change from baseline in both the ADHD-RS-5 inattention and hyperactivity/impulsivity subscale scores was also significantly reduced in the 100-mg (P = .0006 and .0026, respectively) and 200-mg (P < .0001 and P < .0001, respectively) treatment groups compared with the placebo group.
Improvements occurred after 1 week of treatment and were maintained throughout the 6-week trial, “indicating an early and sustained effect,” the investigators wrote.
FDA target action date
The Clinical Global Impression–Improvement (CGI-I) score at 6 weeks was significantly improved in those receiving 100 mg (P = .0020) and 200 mg (P < .0001) of the active treatment compared with placebo.
The CGI-I responder rate, the percentage of children with a CGI-I score of 1 (very much improved) or 2 (much improved), was significantly higher at 6 weeks with viloxazine 100 mg and 200 mg vs. placebo (45% and 51% vs. 30%, respectively; P = .0065 and P = .0002).
These standard investigator-rated assessments were supported by two parent self-rated assessments: the Conners 3–Parent Short Form and the Weiss Functional Impairment Rating Scale–Parent Form.
Parents noted improvement not only in their children’s ADHD symptoms but also in ADHD-associated learning problems, executive functioning, defiance/aggression, peer relations, and functioning in different settings.
At both doses, once-daily viloxazine was generally well tolerated, with a low rate of discontinuation because of adverse events (<5%). Most adverse events were characterized as mild or moderate in severity and included somnolence (8.9%), decreased appetite (6.0%), and headache (5.4%).
On the basis of results of this study and others, the Food and Drug Administration accepted the company’s new drug application for viloxazine extended-release for ADHD in children and adolescents. The application has a target action date of Nov. 8, 2020.
Potential advantages
Commenting on the study in an interview, Dean Elbe, PharmD, clinical pharmacy specialist, child and adolescent mental health, BC Children’s Hospital, Vancouver, B.C., said that use of viloxazine to treat ADHD is “interesting.”
Dr. Elbe, who was not involved with the current research, noted that “it is actually an old drug that has been around since the mid-1970s in Europe as an antidepressant. It was removed from the market due to poor sales, not safety issues.”
Overall, on the basis of this study, viloxazine has potential to offer “modest improvements” over atomoxetine (Strattera), and the dosing may be “more straightforward and somewhat less challenging than with atomoxetine, with no taper up and no adjustment for poor 2D6 metabolizers,” Dr. Elbe noted.
“The onset of action appears somewhat quicker than we typically see with atomoxetine, so that is also helpful for parent and clinician acceptance and partially overcomes a perceived barrier with atomoxetine,” he said.
Dr. Elbe said he wonders, however, whether viloxazine will show “real-world clinical utility for both hyperactive-impulsive as well as inattentive symptoms. Although the study shows efficacy in both symptom clusters, so did the atomoxetine RCTs, and this has not been the clinical impression for atomoxetine.”
The study was funded by Supernus Pharmaceuticals. Dr. Cutler is a consultant for Supernus, as well as for Adlon Therapeutics, Aevi Genomics, Akili Interactive, Arbor Pharmaceuticals, Ironshore, KemPharm, Lundbeck, Neos Therapeutics, NLS Pharma, Otsuka, Purdue, Shire, Sunovion, Takeda, and Tris Pharma. He has received speaker/promotional honoraria from Adlon Therapeutics, Arbor Pharmaceuticals, Lundbeck, Neos Therapeutics, Otsuka, Shire, Sunovion, Takeda, and Tris Pharma and has received research grants from Aevi Genomics, Akili Interactive, Arbor Pharmaceuticals, Ironshore, KemPharm, Lundbeck, Neos Therapeutics, Otsuka, Purdue, Shire, Sunovion, Supernus Pharmaceuticals, Takeda, and Tris Pharma. A complete list of disclosures for the other authors is available in the original article. Dr. Elbe has reported no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
Vitamin D fails to prevent late-life depression, boost mood
Findings from a large randomized, controlled trial do not support the use of vitamin D3 supplementation for adults for the sole purpose of preventing depression.
Among adults aged 50 years or older who were without clinically relevant depressive symptoms at baseline, vitamin D3 supplementation taken over 5 years did not reduce the risk for depression or make a difference in the quality of mood.
“The study is among the largest of its kind ever, and it was able to address whether vitamin D3 supplementation is useful for what we call ‘universal prevention’ of depression,” Olivia Okereke, MD, Massachusetts General Hospital, Boston, said in an interview.
“These results tell us that there is no benefit to using vitamin D3 supplements for the sole purpose of preventing depression in the general population of middle-aged and older adults,” said Dr. Okereke.
“Because of the high dose and long duration of treatment and the randomized placebo-controlled design, we can have high confidence in results,” she added.
The study was published online August 4 in JAMA.
The VITAL-DEP trial
The findings are based on 18,353 older adults (mean age, 67.5 years; 49% women) in the VITAL-DEP study; 16,657 were at risk for incident depression (ie, had no history of depression), and 1696 were at risk for recurrent depression (i.e., had a history of depression but had not undergone treatment for depression within the past 2 years).
Roughly half were randomly allocated to receive vitamin D3 (2000 IU/d of cholecalciferol) and half to receive matching placebo for a median of 5.3 years. The participants’ mean level of 25-hydroxyvitamin D was 31.1 ng/mL; for about 12%, levels were lower than 20 ng/mL.
The risk for depression or clinically relevant depressive symptoms (total of incident and recurrent cases) was not significantly different between the vitamin D3 group (609 depression or clinically relevant depressive symptom events; 12.9/1000 person-years) and the placebo group (625 depression or clinically relevant depressive symptom events; 13.3/1000 person-years). The hazard ratio was 0.97 (95% confidence interval, 0.87-1.09; P = .62).
“Cumulative incidence curves showed lack of separation between treatment groups over the entire follow-up,” the researchers report.
There was also no significant between-group difference in the other primary outcome – the mean difference in mood scores on the eight-item Patient Health Questionnaire depression scale (PHQ-8).
The mean difference for change between treatment groups in PHQ-8 scores was not significantly different from 0 over the entire follow-up (0.01 points; 95% CI, −0.04 to 0.05 points) or at any point during follow-up.
To date, 13 randomized clinical trials have examined the effects of vitamin D3 supplementation on depression or mood during middle age or in older adults, and all except one reported null findings, Dr. Okereke and colleagues noted in their article.
The current study is the only one large enough to examine vitamin D3 supplementation for the universal prevention of depression, they point out.
Although the findings do not support vitamin D3 supplementation for depression prevention, Dr. Okereke said, We also know that vitamin D is essential for bone health, and this study does not tell us whether vitamin D3 is useful for prevention of other health outcomes.”
VITAL-DEP was supported by a grant from the National Institute of Mental Health. Pharmavite donated the vitamin D3, matching placebos, and packaging in the form of calendar packs. Dr. Okereke reported receiving royalties from Springer Publishing for a book on the prevention of late-life depression.
This article first appeared on Medscape.com.
Findings from a large randomized, controlled trial do not support the use of vitamin D3 supplementation for adults for the sole purpose of preventing depression.
Among adults aged 50 years or older who were without clinically relevant depressive symptoms at baseline, vitamin D3 supplementation taken over 5 years did not reduce the risk for depression or make a difference in the quality of mood.
“The study is among the largest of its kind ever, and it was able to address whether vitamin D3 supplementation is useful for what we call ‘universal prevention’ of depression,” Olivia Okereke, MD, Massachusetts General Hospital, Boston, said in an interview.
“These results tell us that there is no benefit to using vitamin D3 supplements for the sole purpose of preventing depression in the general population of middle-aged and older adults,” said Dr. Okereke.
“Because of the high dose and long duration of treatment and the randomized placebo-controlled design, we can have high confidence in results,” she added.
The study was published online August 4 in JAMA.
The VITAL-DEP trial
The findings are based on 18,353 older adults (mean age, 67.5 years; 49% women) in the VITAL-DEP study; 16,657 were at risk for incident depression (ie, had no history of depression), and 1696 were at risk for recurrent depression (i.e., had a history of depression but had not undergone treatment for depression within the past 2 years).
Roughly half were randomly allocated to receive vitamin D3 (2000 IU/d of cholecalciferol) and half to receive matching placebo for a median of 5.3 years. The participants’ mean level of 25-hydroxyvitamin D was 31.1 ng/mL; for about 12%, levels were lower than 20 ng/mL.
The risk for depression or clinically relevant depressive symptoms (total of incident and recurrent cases) was not significantly different between the vitamin D3 group (609 depression or clinically relevant depressive symptom events; 12.9/1000 person-years) and the placebo group (625 depression or clinically relevant depressive symptom events; 13.3/1000 person-years). The hazard ratio was 0.97 (95% confidence interval, 0.87-1.09; P = .62).
“Cumulative incidence curves showed lack of separation between treatment groups over the entire follow-up,” the researchers report.
There was also no significant between-group difference in the other primary outcome – the mean difference in mood scores on the eight-item Patient Health Questionnaire depression scale (PHQ-8).
The mean difference for change between treatment groups in PHQ-8 scores was not significantly different from 0 over the entire follow-up (0.01 points; 95% CI, −0.04 to 0.05 points) or at any point during follow-up.
To date, 13 randomized clinical trials have examined the effects of vitamin D3 supplementation on depression or mood during middle age or in older adults, and all except one reported null findings, Dr. Okereke and colleagues noted in their article.
The current study is the only one large enough to examine vitamin D3 supplementation for the universal prevention of depression, they point out.
Although the findings do not support vitamin D3 supplementation for depression prevention, Dr. Okereke said, We also know that vitamin D is essential for bone health, and this study does not tell us whether vitamin D3 is useful for prevention of other health outcomes.”
VITAL-DEP was supported by a grant from the National Institute of Mental Health. Pharmavite donated the vitamin D3, matching placebos, and packaging in the form of calendar packs. Dr. Okereke reported receiving royalties from Springer Publishing for a book on the prevention of late-life depression.
This article first appeared on Medscape.com.
Findings from a large randomized, controlled trial do not support the use of vitamin D3 supplementation for adults for the sole purpose of preventing depression.
Among adults aged 50 years or older who were without clinically relevant depressive symptoms at baseline, vitamin D3 supplementation taken over 5 years did not reduce the risk for depression or make a difference in the quality of mood.
“The study is among the largest of its kind ever, and it was able to address whether vitamin D3 supplementation is useful for what we call ‘universal prevention’ of depression,” Olivia Okereke, MD, Massachusetts General Hospital, Boston, said in an interview.
“These results tell us that there is no benefit to using vitamin D3 supplements for the sole purpose of preventing depression in the general population of middle-aged and older adults,” said Dr. Okereke.
“Because of the high dose and long duration of treatment and the randomized placebo-controlled design, we can have high confidence in results,” she added.
The study was published online August 4 in JAMA.
The VITAL-DEP trial
The findings are based on 18,353 older adults (mean age, 67.5 years; 49% women) in the VITAL-DEP study; 16,657 were at risk for incident depression (ie, had no history of depression), and 1696 were at risk for recurrent depression (i.e., had a history of depression but had not undergone treatment for depression within the past 2 years).
Roughly half were randomly allocated to receive vitamin D3 (2000 IU/d of cholecalciferol) and half to receive matching placebo for a median of 5.3 years. The participants’ mean level of 25-hydroxyvitamin D was 31.1 ng/mL; for about 12%, levels were lower than 20 ng/mL.
The risk for depression or clinically relevant depressive symptoms (total of incident and recurrent cases) was not significantly different between the vitamin D3 group (609 depression or clinically relevant depressive symptom events; 12.9/1000 person-years) and the placebo group (625 depression or clinically relevant depressive symptom events; 13.3/1000 person-years). The hazard ratio was 0.97 (95% confidence interval, 0.87-1.09; P = .62).
“Cumulative incidence curves showed lack of separation between treatment groups over the entire follow-up,” the researchers report.
There was also no significant between-group difference in the other primary outcome – the mean difference in mood scores on the eight-item Patient Health Questionnaire depression scale (PHQ-8).
The mean difference for change between treatment groups in PHQ-8 scores was not significantly different from 0 over the entire follow-up (0.01 points; 95% CI, −0.04 to 0.05 points) or at any point during follow-up.
To date, 13 randomized clinical trials have examined the effects of vitamin D3 supplementation on depression or mood during middle age or in older adults, and all except one reported null findings, Dr. Okereke and colleagues noted in their article.
The current study is the only one large enough to examine vitamin D3 supplementation for the universal prevention of depression, they point out.
Although the findings do not support vitamin D3 supplementation for depression prevention, Dr. Okereke said, We also know that vitamin D is essential for bone health, and this study does not tell us whether vitamin D3 is useful for prevention of other health outcomes.”
VITAL-DEP was supported by a grant from the National Institute of Mental Health. Pharmavite donated the vitamin D3, matching placebos, and packaging in the form of calendar packs. Dr. Okereke reported receiving royalties from Springer Publishing for a book on the prevention of late-life depression.
This article first appeared on Medscape.com.
Cognitive impairment in 9/11 responders tied to brain atrophy
, suggest results from the first structural neuroimaging study conducted in this population. The study clarifies that a neurodegenerative condition is present in first responders who experience cognitive impairment in midlife, which “is incredibly important to know,” said lead author Sean Clouston, PhD, of Stony Brook (N.Y.) University.
The findings were presented at the virtual annual meeting of the Alzheimer’s Association International Conference and were published online in Alzheimer’s and Dementia: Diagnosis, Assessment and Disease Monitoring.
Brain atrophy in midlife
During the 9/11 attack and in its aftermath, WTC responders were exposed to a range of inhaled neurotoxicants, as well as extreme psychosocial stressors. A growing number of WTC responders who are now in their 50s and early 60s are experiencing early cognitive impairment.
Using MRI, the investigators examined cortical thickness (CTX), a surrogate marker for neurodegeneration, in 99 mostly male WTC responders; 48 had cognitive impairment, and 51 did not. The age range of the participants was 45 to 65 years, a range during which cortical atrophy is uncommon in the general population, the researchers noted.
Compared with cognitively normal responders, those with cognitive impairment were found to have reductions in CTX across the whole brain and across 21 of 34 cortical regions, including frontal, temporal, and occipital lobes.
In both cognitively impaired and cognitively unimpaired WTC responders, CTX was reduced in the entorhinal and temporal cortices compared with normative data, but reductions were greater with cognitive impairment. Posttraumatic distress disorder (PTSD) status was not predictive of a reduction in CTX across groups.
Dr. Clouston said the level of reduction in CTX in many responders is similar to that commonly found in patients with dementia and may reflect early-stage dementia occurring in midlife.
Limitations of the study include the small sample size, the cross-sectional design, the unique nature of the exposure, and a lack of a non-WTC external control group.
‘Illuminating’ study
Keith N. Fargo, PhD, director of scientific engagement for the Alzheimer’s Association, called the findings “interesting and illuminating” but cautioned that it is not possible to show cause and effect with this type of study.
“We also don’t know when cortical thinning might have started or how quickly it might be progressing,” Dr. Fargo said in an interview.
He noted that the pattern of cortical thinning is “somewhat consistent with what we see among people who live with high levels of air pollution, which is an emerging risk factor for Alzheimer’s disease and other dementias.”
The Lancet Commission on Dementia Prevention, Intervention, and Care added air pollution to its list of modifiable risk factors for dementia, which was recently updated.
Clinicians “need to be aware that their middle-aged 9/11 first responders are at a higher risk level for cognitive impairment, as well as PTSD and depression,” Dr. Fargo said.
The study was funded by the Centers for Disease Control and Prevention and the National Institute on Aging. Dr. Clouston and Dr. Fargo have reported no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
, suggest results from the first structural neuroimaging study conducted in this population. The study clarifies that a neurodegenerative condition is present in first responders who experience cognitive impairment in midlife, which “is incredibly important to know,” said lead author Sean Clouston, PhD, of Stony Brook (N.Y.) University.
The findings were presented at the virtual annual meeting of the Alzheimer’s Association International Conference and were published online in Alzheimer’s and Dementia: Diagnosis, Assessment and Disease Monitoring.
Brain atrophy in midlife
During the 9/11 attack and in its aftermath, WTC responders were exposed to a range of inhaled neurotoxicants, as well as extreme psychosocial stressors. A growing number of WTC responders who are now in their 50s and early 60s are experiencing early cognitive impairment.
Using MRI, the investigators examined cortical thickness (CTX), a surrogate marker for neurodegeneration, in 99 mostly male WTC responders; 48 had cognitive impairment, and 51 did not. The age range of the participants was 45 to 65 years, a range during which cortical atrophy is uncommon in the general population, the researchers noted.
Compared with cognitively normal responders, those with cognitive impairment were found to have reductions in CTX across the whole brain and across 21 of 34 cortical regions, including frontal, temporal, and occipital lobes.
In both cognitively impaired and cognitively unimpaired WTC responders, CTX was reduced in the entorhinal and temporal cortices compared with normative data, but reductions were greater with cognitive impairment. Posttraumatic distress disorder (PTSD) status was not predictive of a reduction in CTX across groups.
Dr. Clouston said the level of reduction in CTX in many responders is similar to that commonly found in patients with dementia and may reflect early-stage dementia occurring in midlife.
Limitations of the study include the small sample size, the cross-sectional design, the unique nature of the exposure, and a lack of a non-WTC external control group.
‘Illuminating’ study
Keith N. Fargo, PhD, director of scientific engagement for the Alzheimer’s Association, called the findings “interesting and illuminating” but cautioned that it is not possible to show cause and effect with this type of study.
“We also don’t know when cortical thinning might have started or how quickly it might be progressing,” Dr. Fargo said in an interview.
He noted that the pattern of cortical thinning is “somewhat consistent with what we see among people who live with high levels of air pollution, which is an emerging risk factor for Alzheimer’s disease and other dementias.”
The Lancet Commission on Dementia Prevention, Intervention, and Care added air pollution to its list of modifiable risk factors for dementia, which was recently updated.
Clinicians “need to be aware that their middle-aged 9/11 first responders are at a higher risk level for cognitive impairment, as well as PTSD and depression,” Dr. Fargo said.
The study was funded by the Centers for Disease Control and Prevention and the National Institute on Aging. Dr. Clouston and Dr. Fargo have reported no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
, suggest results from the first structural neuroimaging study conducted in this population. The study clarifies that a neurodegenerative condition is present in first responders who experience cognitive impairment in midlife, which “is incredibly important to know,” said lead author Sean Clouston, PhD, of Stony Brook (N.Y.) University.
The findings were presented at the virtual annual meeting of the Alzheimer’s Association International Conference and were published online in Alzheimer’s and Dementia: Diagnosis, Assessment and Disease Monitoring.
Brain atrophy in midlife
During the 9/11 attack and in its aftermath, WTC responders were exposed to a range of inhaled neurotoxicants, as well as extreme psychosocial stressors. A growing number of WTC responders who are now in their 50s and early 60s are experiencing early cognitive impairment.
Using MRI, the investigators examined cortical thickness (CTX), a surrogate marker for neurodegeneration, in 99 mostly male WTC responders; 48 had cognitive impairment, and 51 did not. The age range of the participants was 45 to 65 years, a range during which cortical atrophy is uncommon in the general population, the researchers noted.
Compared with cognitively normal responders, those with cognitive impairment were found to have reductions in CTX across the whole brain and across 21 of 34 cortical regions, including frontal, temporal, and occipital lobes.
In both cognitively impaired and cognitively unimpaired WTC responders, CTX was reduced in the entorhinal and temporal cortices compared with normative data, but reductions were greater with cognitive impairment. Posttraumatic distress disorder (PTSD) status was not predictive of a reduction in CTX across groups.
Dr. Clouston said the level of reduction in CTX in many responders is similar to that commonly found in patients with dementia and may reflect early-stage dementia occurring in midlife.
Limitations of the study include the small sample size, the cross-sectional design, the unique nature of the exposure, and a lack of a non-WTC external control group.
‘Illuminating’ study
Keith N. Fargo, PhD, director of scientific engagement for the Alzheimer’s Association, called the findings “interesting and illuminating” but cautioned that it is not possible to show cause and effect with this type of study.
“We also don’t know when cortical thinning might have started or how quickly it might be progressing,” Dr. Fargo said in an interview.
He noted that the pattern of cortical thinning is “somewhat consistent with what we see among people who live with high levels of air pollution, which is an emerging risk factor for Alzheimer’s disease and other dementias.”
The Lancet Commission on Dementia Prevention, Intervention, and Care added air pollution to its list of modifiable risk factors for dementia, which was recently updated.
Clinicians “need to be aware that their middle-aged 9/11 first responders are at a higher risk level for cognitive impairment, as well as PTSD and depression,” Dr. Fargo said.
The study was funded by the Centers for Disease Control and Prevention and the National Institute on Aging. Dr. Clouston and Dr. Fargo have reported no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
From AAIC 2020