Federal Practitioner

A Chicago-based medical oncologist has been charged with insider trading by the U.S. Securities and Exchange Commission, according to a Dec. 20 press release issued by the U.S. Department of Justice.

Daniel V.T. Catenacci, MD, PhD, a gastrointestinal medical oncologist and associate professor of medicine at the University of Chicago, is alleged to have used confidential information to purchase shares of California-based biotechnology company Five Prime Therapeutics before it publicly announced positive results from a clinical trial of bemarituzumab, an experimental cancer drug.

Dr. Catenacci served as the lead investigator of the clinical trial that evaluated bemarituzumab. The drug, which earned breakthrough therapy designation from the Food and Drug Administration earlier this year, is designed to target fibroblast growth factor receptor 2b (FGFR2b), overexpressed in about 30% of patients with HER2-negative gastric cancer and other solid tumors.

Bemarituzumab is being positioned as a potential frontline therapy for advanced gastric or gastroesophageal junction cancer. A recent phase 2 trial found that adding bemarituzumab to chemotherapy in this patient population improved survival over chemotherapy alone.

According to the criminal information, filed on Dec. 17 in U.S. District Court in Chicago, the charges state that, in November 2020, Dr. Catenacci “used material, non-public information about the trial results to make more than $134,000 in illegal profits from the purchase and sale of securities in the company.”

More specifically, the SEC’s complaint alleges that Dr. Catenacci received confidential information about the company and its positive clinical trial results through his position as principal investigator. Dr. Catenacci then purchased almost 8,800 shares of Five Prime Therapeutics before the company announced the positive results. Dr. Catenacci subsequently sold those shares shortly after the trial results were announced. In the interim, the shares tripled or quadrupled in value.

He has been charged with one count of securities fraud, punishable by up to 20 years in federal prison. Arraignment in federal court in Chicago has yet to be scheduled.

In addition, the federal complaint alleges that Dr. Catenacci violated the antifraud provisions of the federal securities laws. According to a press release, “Catenacci has agreed to be permanently enjoined from violations of these provisions, and to pay a civil penalty in an amount to be determined by the court later.”

Erin E. Schneider, regional director of the SEC’s San Francisco Regional Office, stated in the press release that clinical drug trials typically involve sensitive and valuable information about the viability of an experimental drug.

“As alleged in our complaint, Catenacci was required to safeguard the material nonpublic information he learned about Five Prime’s clinical trial, and not trade on it,” said Mr. Schneider.

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

A Chicago-based medical oncologist has been charged with insider trading by the U.S. Securities and Exchange Commission, according to a Dec. 20 press release issued by the U.S. Department of Justice.

Daniel V.T. Catenacci, MD, PhD, a gastrointestinal medical oncologist and associate professor of medicine at the University of Chicago, is alleged to have used confidential information to purchase shares of California-based biotechnology company Five Prime Therapeutics before it publicly announced positive results from a clinical trial of bemarituzumab, an experimental cancer drug.

Dr. Catenacci served as the lead investigator of the clinical trial that evaluated bemarituzumab. The drug, which earned breakthrough therapy designation from the Food and Drug Administration earlier this year, is designed to target fibroblast growth factor receptor 2b (FGFR2b), overexpressed in about 30% of patients with HER2-negative gastric cancer and other solid tumors.

Bemarituzumab is being positioned as a potential frontline therapy for advanced gastric or gastroesophageal junction cancer. A recent phase 2 trial found that adding bemarituzumab to chemotherapy in this patient population improved survival over chemotherapy alone.

According to the criminal information, filed on Dec. 17 in U.S. District Court in Chicago, the charges state that, in November 2020, Dr. Catenacci “used material, non-public information about the trial results to make more than $134,000 in illegal profits from the purchase and sale of securities in the company.”

More specifically, the SEC’s complaint alleges that Dr. Catenacci received confidential information about the company and its positive clinical trial results through his position as principal investigator. Dr. Catenacci then purchased almost 8,800 shares of Five Prime Therapeutics before the company announced the positive results. Dr. Catenacci subsequently sold those shares shortly after the trial results were announced. In the interim, the shares tripled or quadrupled in value.

He has been charged with one count of securities fraud, punishable by up to 20 years in federal prison. Arraignment in federal court in Chicago has yet to be scheduled.

In addition, the federal complaint alleges that Dr. Catenacci violated the antifraud provisions of the federal securities laws. According to a press release, “Catenacci has agreed to be permanently enjoined from violations of these provisions, and to pay a civil penalty in an amount to be determined by the court later.”

Erin E. Schneider, regional director of the SEC’s San Francisco Regional Office, stated in the press release that clinical drug trials typically involve sensitive and valuable information about the viability of an experimental drug.

“As alleged in our complaint, Catenacci was required to safeguard the material nonpublic information he learned about Five Prime’s clinical trial, and not trade on it,” said Mr. Schneider.

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

A Chicago-based medical oncologist has been charged with insider trading by the U.S. Securities and Exchange Commission, according to a Dec. 20 press release issued by the U.S. Department of Justice.

Daniel V.T. Catenacci, MD, PhD, a gastrointestinal medical oncologist and associate professor of medicine at the University of Chicago, is alleged to have used confidential information to purchase shares of California-based biotechnology company Five Prime Therapeutics before it publicly announced positive results from a clinical trial of bemarituzumab, an experimental cancer drug.

Dr. Catenacci served as the lead investigator of the clinical trial that evaluated bemarituzumab. The drug, which earned breakthrough therapy designation from the Food and Drug Administration earlier this year, is designed to target fibroblast growth factor receptor 2b (FGFR2b), overexpressed in about 30% of patients with HER2-negative gastric cancer and other solid tumors.

Bemarituzumab is being positioned as a potential frontline therapy for advanced gastric or gastroesophageal junction cancer. A recent phase 2 trial found that adding bemarituzumab to chemotherapy in this patient population improved survival over chemotherapy alone.

According to the criminal information, filed on Dec. 17 in U.S. District Court in Chicago, the charges state that, in November 2020, Dr. Catenacci “used material, non-public information about the trial results to make more than $134,000 in illegal profits from the purchase and sale of securities in the company.”

More specifically, the SEC’s complaint alleges that Dr. Catenacci received confidential information about the company and its positive clinical trial results through his position as principal investigator. Dr. Catenacci then purchased almost 8,800 shares of Five Prime Therapeutics before the company announced the positive results. Dr. Catenacci subsequently sold those shares shortly after the trial results were announced. In the interim, the shares tripled or quadrupled in value.

He has been charged with one count of securities fraud, punishable by up to 20 years in federal prison. Arraignment in federal court in Chicago has yet to be scheduled.

In addition, the federal complaint alleges that Dr. Catenacci violated the antifraud provisions of the federal securities laws. According to a press release, “Catenacci has agreed to be permanently enjoined from violations of these provisions, and to pay a civil penalty in an amount to be determined by the court later.”

Erin E. Schneider, regional director of the SEC’s San Francisco Regional Office, stated in the press release that clinical drug trials typically involve sensitive and valuable information about the viability of an experimental drug.

“As alleged in our complaint, Catenacci was required to safeguard the material nonpublic information he learned about Five Prime’s clinical trial, and not trade on it,” said Mr. Schneider.

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

A high-fiber diet may improve treatment response among patients with advanced melanoma receiving immune checkpoint inhibitors, while probiotics may reduce treatment effectiveness, a new study shows.

Investigators found that the patients who reported consuming at least 20 g of dietary fiber daily had significantly better progression-free survival (PFS) than those who reported consuming lower amounts of dietary fiber. However, patients who took a probiotic supplement in the past month had slightly shorter PFS, but the results were not statistically significant.

And after adjusting for clinical factors, each 5-g increase in daily dietary fiber intake corresponded to a 30% lower risk of disease progression, according to the analysis, published online Dec. 23, 2021, in Science.

“Our study sheds light on the potential effects of a patient’s diet and supplement use when starting treatment with immune checkpoint blockade,” co–lead study author Jennifer Wargo, MD, professor of genomic medicine and surgical oncology at University of Texas MD Anderson Cancer Center, Houston, said in a press release. “These results provide further support for clinical trials to modulate the microbiome with the goal of improving cancer outcomes using dietary and other strategies.”

Previous research has suggested that the microbiome can influence patients’ response to immunotherapy. One recent analysis, for instance, found that fecal microbiota transplant can improve response to immunotherapy in advanced melanoma. And a small 2019 analysis from Dr. Dr. Wargo and colleagues hinted that a high-fiber diet may enhance patients’ ability to respond to immunotherapy in advanced melanoma, while probiotics appear to dampen that response.

Still, the role diet and probiotic supplements play in treatment response remains poorly understood.

In the current study, Dr. Wargo and colleagues assessed fecal microbiota profiles and dietary habits, including fiber intake and probiotic use, in 158 patients with advanced melanoma who received immune checkpoint blockade inhibitors.

In the cohort, 31% (49 of 158) of late-stage melanoma patients reported taking a commercially available probiotic in the past month. When assessing whether probiotic use influenced patient outcomes, the investigators observed a shorter but not statistically significant difference in PFS in those who took a probiotic (median, 17 months) versus those who did not (23 months).

Higher dietary fiber, however, was associated with significantly improved PFS in a subset of 128 patients. The team divided patients into a higher-fiber intake group (those consuming at least 20 g/day) and a low-fiber group (those consuming less than 20 g).

The 37 patients reporting higher fiber intake demonstrated improved PFS, compared with those in the low-intake group (median PFS not reached vs. 13 months), plus a 30% lower risk of disease progression or death for each additional 5 g consumed each day.

“The observed protective effect of dietary fiber intake in relation to PFS and response remained consistent among the subset of patients treated with anti–PD-1 monotherapy, with the exclusion of patients reporting recent antibiotic use,” the authors noted.

When assessing fiber and probiotic intake together, the researchers found that immunotherapy response rate was higher (82%) in the 22 patients who reported sufficient dietary fiber intake with no probiotic use versus 59% in 101 patients who reported either insufficient fiber intake or probiotic use.

Overall, the research suggests that “consuming a diet rich in fiber, like fruits, vegetables, and legumes, could improve your ability to respond to immunotherapy,” co–lead author Giorgio Trinchieri, MD, chief of the Laboratory of Integrative Cancer Immunology in the National Cancer Institute’s Center for Cancer Research, Bethesda, Md., said in a press statement. “The data also suggest that it’s probably better for people with cancer receiving immunotherapy not to use commercially available probiotics.”

The investigators also explored whether dietary fiber intake enhanced treatment response in preclinical mouse models of melanoma. In this instance, mice receiving a fiber-rich diet showed delayed tumor growth after anti–PD-1 treatment, compared with mice given a low-fiber diet or probiotics.

According to the authors, “our preclinical models support the hypothesis that dietary fiber and probiotics modulate the microbiome and that antitumor immunity is impaired in mice receiving a low-fiber diet and in those receiving probiotics – with suppression of intratumoral [interferon-gamma] T-cell responses in both cases.”

Dietary fiber may exert beneficial effect by increasing specific types of bacteria in the gut, such as Ruminococcaceae, which “produce high levels of certain short-chain fatty acids that have an antitumor effect,” Dr. Trinchieri explained.

However, “the impact of dietary fiber and probiotics on the gut microbiota is only part of the bigger picture,” Dr. Trinchieri said in a press release. “Many factors can affect the ability of a patient with melanoma to respond to immunotherapy” but, according to this analysis, “the microbiota seems to be one of the dominant factors.”

While Jeffrey S. Weber, MD, PhD, applauded the “innovative and interesting” research, he believes the patient population is too small to confirm that a high-fiber diet does indeed contribute to improved immunotherapy response and PFS in patients with advanced melanoma.

Additional data are needed to clarify these findings. “I will believe it if I could see it replicated in a larger study,” Dr. Weber, professor and deputy director of the Laura and Isaac Perlmutter Cancer Center, New York University, said in an interview.

Dr. Wargo noted that a randomized clinical trial exploring how diets with varying fiber content affect the microbiome and immune response is currently enrolling patients with stage III and IV melanoma receiving immunotherapy.

This study was supported by the Melanoma Moon Shot, among others. Dr. Wargo is a collaborator on a U.S. patent application that covers methods to enhance immune checkpoint blockade responses by modulating the microbiome. Dr. Weber reported relationships with Bristol-Myers Squibb, GlaxoSmithKline, Genentech BioOncology, Merck, Novartis, EMD Serono, Celldex, CytomX, Nektar, Roche, Altor, Daiichi Sankyo, and Eli Lilly, and is named on patents filed for biomarkers for ipilimumab and nivolumab.

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

A high-fiber diet may improve treatment response among patients with advanced melanoma receiving immune checkpoint inhibitors, while probiotics may reduce treatment effectiveness, a new study shows.

Investigators found that the patients who reported consuming at least 20 g of dietary fiber daily had significantly better progression-free survival (PFS) than those who reported consuming lower amounts of dietary fiber. However, patients who took a probiotic supplement in the past month had slightly shorter PFS, but the results were not statistically significant.

And after adjusting for clinical factors, each 5-g increase in daily dietary fiber intake corresponded to a 30% lower risk of disease progression, according to the analysis, published online Dec. 23, 2021, in Science.

“Our study sheds light on the potential effects of a patient’s diet and supplement use when starting treatment with immune checkpoint blockade,” co–lead study author Jennifer Wargo, MD, professor of genomic medicine and surgical oncology at University of Texas MD Anderson Cancer Center, Houston, said in a press release. “These results provide further support for clinical trials to modulate the microbiome with the goal of improving cancer outcomes using dietary and other strategies.”

Previous research has suggested that the microbiome can influence patients’ response to immunotherapy. One recent analysis, for instance, found that fecal microbiota transplant can improve response to immunotherapy in advanced melanoma. And a small 2019 analysis from Dr. Dr. Wargo and colleagues hinted that a high-fiber diet may enhance patients’ ability to respond to immunotherapy in advanced melanoma, while probiotics appear to dampen that response.

Still, the role diet and probiotic supplements play in treatment response remains poorly understood.

In the current study, Dr. Wargo and colleagues assessed fecal microbiota profiles and dietary habits, including fiber intake and probiotic use, in 158 patients with advanced melanoma who received immune checkpoint blockade inhibitors.

In the cohort, 31% (49 of 158) of late-stage melanoma patients reported taking a commercially available probiotic in the past month. When assessing whether probiotic use influenced patient outcomes, the investigators observed a shorter but not statistically significant difference in PFS in those who took a probiotic (median, 17 months) versus those who did not (23 months).

Higher dietary fiber, however, was associated with significantly improved PFS in a subset of 128 patients. The team divided patients into a higher-fiber intake group (those consuming at least 20 g/day) and a low-fiber group (those consuming less than 20 g).

The 37 patients reporting higher fiber intake demonstrated improved PFS, compared with those in the low-intake group (median PFS not reached vs. 13 months), plus a 30% lower risk of disease progression or death for each additional 5 g consumed each day.

“The observed protective effect of dietary fiber intake in relation to PFS and response remained consistent among the subset of patients treated with anti–PD-1 monotherapy, with the exclusion of patients reporting recent antibiotic use,” the authors noted.

When assessing fiber and probiotic intake together, the researchers found that immunotherapy response rate was higher (82%) in the 22 patients who reported sufficient dietary fiber intake with no probiotic use versus 59% in 101 patients who reported either insufficient fiber intake or probiotic use.

Overall, the research suggests that “consuming a diet rich in fiber, like fruits, vegetables, and legumes, could improve your ability to respond to immunotherapy,” co–lead author Giorgio Trinchieri, MD, chief of the Laboratory of Integrative Cancer Immunology in the National Cancer Institute’s Center for Cancer Research, Bethesda, Md., said in a press statement. “The data also suggest that it’s probably better for people with cancer receiving immunotherapy not to use commercially available probiotics.”

The investigators also explored whether dietary fiber intake enhanced treatment response in preclinical mouse models of melanoma. In this instance, mice receiving a fiber-rich diet showed delayed tumor growth after anti–PD-1 treatment, compared with mice given a low-fiber diet or probiotics.

According to the authors, “our preclinical models support the hypothesis that dietary fiber and probiotics modulate the microbiome and that antitumor immunity is impaired in mice receiving a low-fiber diet and in those receiving probiotics – with suppression of intratumoral [interferon-gamma] T-cell responses in both cases.”

Dietary fiber may exert beneficial effect by increasing specific types of bacteria in the gut, such as Ruminococcaceae, which “produce high levels of certain short-chain fatty acids that have an antitumor effect,” Dr. Trinchieri explained.

However, “the impact of dietary fiber and probiotics on the gut microbiota is only part of the bigger picture,” Dr. Trinchieri said in a press release. “Many factors can affect the ability of a patient with melanoma to respond to immunotherapy” but, according to this analysis, “the microbiota seems to be one of the dominant factors.”

While Jeffrey S. Weber, MD, PhD, applauded the “innovative and interesting” research, he believes the patient population is too small to confirm that a high-fiber diet does indeed contribute to improved immunotherapy response and PFS in patients with advanced melanoma.

Additional data are needed to clarify these findings. “I will believe it if I could see it replicated in a larger study,” Dr. Weber, professor and deputy director of the Laura and Isaac Perlmutter Cancer Center, New York University, said in an interview.

Dr. Wargo noted that a randomized clinical trial exploring how diets with varying fiber content affect the microbiome and immune response is currently enrolling patients with stage III and IV melanoma receiving immunotherapy.

This study was supported by the Melanoma Moon Shot, among others. Dr. Wargo is a collaborator on a U.S. patent application that covers methods to enhance immune checkpoint blockade responses by modulating the microbiome. Dr. Weber reported relationships with Bristol-Myers Squibb, GlaxoSmithKline, Genentech BioOncology, Merck, Novartis, EMD Serono, Celldex, CytomX, Nektar, Roche, Altor, Daiichi Sankyo, and Eli Lilly, and is named on patents filed for biomarkers for ipilimumab and nivolumab.

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

A high-fiber diet may improve treatment response among patients with advanced melanoma receiving immune checkpoint inhibitors, while probiotics may reduce treatment effectiveness, a new study shows.

Investigators found that the patients who reported consuming at least 20 g of dietary fiber daily had significantly better progression-free survival (PFS) than those who reported consuming lower amounts of dietary fiber. However, patients who took a probiotic supplement in the past month had slightly shorter PFS, but the results were not statistically significant.

And after adjusting for clinical factors, each 5-g increase in daily dietary fiber intake corresponded to a 30% lower risk of disease progression, according to the analysis, published online Dec. 23, 2021, in Science.

“Our study sheds light on the potential effects of a patient’s diet and supplement use when starting treatment with immune checkpoint blockade,” co–lead study author Jennifer Wargo, MD, professor of genomic medicine and surgical oncology at University of Texas MD Anderson Cancer Center, Houston, said in a press release. “These results provide further support for clinical trials to modulate the microbiome with the goal of improving cancer outcomes using dietary and other strategies.”

Previous research has suggested that the microbiome can influence patients’ response to immunotherapy. One recent analysis, for instance, found that fecal microbiota transplant can improve response to immunotherapy in advanced melanoma. And a small 2019 analysis from Dr. Dr. Wargo and colleagues hinted that a high-fiber diet may enhance patients’ ability to respond to immunotherapy in advanced melanoma, while probiotics appear to dampen that response.

Still, the role diet and probiotic supplements play in treatment response remains poorly understood.

In the current study, Dr. Wargo and colleagues assessed fecal microbiota profiles and dietary habits, including fiber intake and probiotic use, in 158 patients with advanced melanoma who received immune checkpoint blockade inhibitors.

In the cohort, 31% (49 of 158) of late-stage melanoma patients reported taking a commercially available probiotic in the past month. When assessing whether probiotic use influenced patient outcomes, the investigators observed a shorter but not statistically significant difference in PFS in those who took a probiotic (median, 17 months) versus those who did not (23 months).

Higher dietary fiber, however, was associated with significantly improved PFS in a subset of 128 patients. The team divided patients into a higher-fiber intake group (those consuming at least 20 g/day) and a low-fiber group (those consuming less than 20 g).

The 37 patients reporting higher fiber intake demonstrated improved PFS, compared with those in the low-intake group (median PFS not reached vs. 13 months), plus a 30% lower risk of disease progression or death for each additional 5 g consumed each day.

“The observed protective effect of dietary fiber intake in relation to PFS and response remained consistent among the subset of patients treated with anti–PD-1 monotherapy, with the exclusion of patients reporting recent antibiotic use,” the authors noted.

When assessing fiber and probiotic intake together, the researchers found that immunotherapy response rate was higher (82%) in the 22 patients who reported sufficient dietary fiber intake with no probiotic use versus 59% in 101 patients who reported either insufficient fiber intake or probiotic use.

Overall, the research suggests that “consuming a diet rich in fiber, like fruits, vegetables, and legumes, could improve your ability to respond to immunotherapy,” co–lead author Giorgio Trinchieri, MD, chief of the Laboratory of Integrative Cancer Immunology in the National Cancer Institute’s Center for Cancer Research, Bethesda, Md., said in a press statement. “The data also suggest that it’s probably better for people with cancer receiving immunotherapy not to use commercially available probiotics.”

The investigators also explored whether dietary fiber intake enhanced treatment response in preclinical mouse models of melanoma. In this instance, mice receiving a fiber-rich diet showed delayed tumor growth after anti–PD-1 treatment, compared with mice given a low-fiber diet or probiotics.

According to the authors, “our preclinical models support the hypothesis that dietary fiber and probiotics modulate the microbiome and that antitumor immunity is impaired in mice receiving a low-fiber diet and in those receiving probiotics – with suppression of intratumoral [interferon-gamma] T-cell responses in both cases.”

Dietary fiber may exert beneficial effect by increasing specific types of bacteria in the gut, such as Ruminococcaceae, which “produce high levels of certain short-chain fatty acids that have an antitumor effect,” Dr. Trinchieri explained.

However, “the impact of dietary fiber and probiotics on the gut microbiota is only part of the bigger picture,” Dr. Trinchieri said in a press release. “Many factors can affect the ability of a patient with melanoma to respond to immunotherapy” but, according to this analysis, “the microbiota seems to be one of the dominant factors.”

While Jeffrey S. Weber, MD, PhD, applauded the “innovative and interesting” research, he believes the patient population is too small to confirm that a high-fiber diet does indeed contribute to improved immunotherapy response and PFS in patients with advanced melanoma.

Additional data are needed to clarify these findings. “I will believe it if I could see it replicated in a larger study,” Dr. Weber, professor and deputy director of the Laura and Isaac Perlmutter Cancer Center, New York University, said in an interview.

Dr. Wargo noted that a randomized clinical trial exploring how diets with varying fiber content affect the microbiome and immune response is currently enrolling patients with stage III and IV melanoma receiving immunotherapy.

This study was supported by the Melanoma Moon Shot, among others. Dr. Wargo is a collaborator on a U.S. patent application that covers methods to enhance immune checkpoint blockade responses by modulating the microbiome. Dr. Weber reported relationships with Bristol-Myers Squibb, GlaxoSmithKline, Genentech BioOncology, Merck, Novartis, EMD Serono, Celldex, CytomX, Nektar, Roche, Altor, Daiichi Sankyo, and Eli Lilly, and is named on patents filed for biomarkers for ipilimumab and nivolumab.

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

Booster shot protection against symptomatic COVID-19 caused by the Omicron variant appears to fade in about 10 weeks, according to new data from Britain.

U.K. health officials shared the data just before Christmas and noted that there haven’t been enough severe cases of the Omicron variant to calculate how well boosters protect against severe disease. But they believe the extra shots provide significant protection against hospitalization and death.

“It will be a few weeks before effectiveness against severe disease with Omicron can be estimated,” U.K. Health Security Agency officials wrote in the report. “However, based on experience with previous variants, this is likely to be substantially higher than the estimates against symptomatic disease.”

Since countries began reporting Omicron cases in November, multiple studies have suggested the variant is better at escaping antibodies from vaccination and previous infection, according to the New York Times. The U.K. report adds to that, noting that both the initial vaccine series and booster doses were less effective and faded faster against the Omicron variant than the Delta variant.

Among those who received two doses of the AstraZeneca vaccine, a booster of the Pfizer or Moderna vaccine was 60% effective at preventing symptomatic disease 2 to 4 weeks after the shot. But after 10 weeks, the Pfizer booster was 35% effective, and the Moderna booster was 45% effective. (The AstraZeneca vaccine is not authorized in the United States, but the Johnson & Johnson shot uses a similar technology, the New York Times reported.)

Among those who received three Pfizer doses, vaccine effectiveness was 70% about a week after the booster but dropped to 45% after 10 weeks. At the same time, those who received an initial two-dose series of the Pfizer vaccine and then a Moderna booster seemed to have 75% effectiveness up to 9 weeks.

The report was based on an analysis of 148,000 Delta cases and 68,000 Omicron cases in the United Kingdom through Dec. 20. So far, the U.K. health officials wrote, Omicron infections appear to be less severe and less likely to lead to hospitalization than Delta infections. At that time, 132 people with lab-confirmed Omicron had been admitted to hospitals, and 14 deaths had been reported among ages 52-96.

“This analysis is preliminary because of the small numbers of Omicron cases currently in hospital and the limited spread of Omicron into older age groups as yet,” the report said.

The reinfection rate has also increased for the Omicron variant, the report found. Among the 116,000 people who had an Omicron infection, about 11,000 -- or 9.5% -- were linked to a previously confirmed infection, which is likely an undercount of reinfections. In the data analyzed, 69 Omicron cases were a third episode of COVID-19 infection, and 290 cases occurred 60-89 days after a first infection.

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

Booster shot protection against symptomatic COVID-19 caused by the Omicron variant appears to fade in about 10 weeks, according to new data from Britain.

U.K. health officials shared the data just before Christmas and noted that there haven’t been enough severe cases of the Omicron variant to calculate how well boosters protect against severe disease. But they believe the extra shots provide significant protection against hospitalization and death.

“It will be a few weeks before effectiveness against severe disease with Omicron can be estimated,” U.K. Health Security Agency officials wrote in the report. “However, based on experience with previous variants, this is likely to be substantially higher than the estimates against symptomatic disease.”

Since countries began reporting Omicron cases in November, multiple studies have suggested the variant is better at escaping antibodies from vaccination and previous infection, according to the New York Times. The U.K. report adds to that, noting that both the initial vaccine series and booster doses were less effective and faded faster against the Omicron variant than the Delta variant.

Among those who received two doses of the AstraZeneca vaccine, a booster of the Pfizer or Moderna vaccine was 60% effective at preventing symptomatic disease 2 to 4 weeks after the shot. But after 10 weeks, the Pfizer booster was 35% effective, and the Moderna booster was 45% effective. (The AstraZeneca vaccine is not authorized in the United States, but the Johnson & Johnson shot uses a similar technology, the New York Times reported.)

Among those who received three Pfizer doses, vaccine effectiveness was 70% about a week after the booster but dropped to 45% after 10 weeks. At the same time, those who received an initial two-dose series of the Pfizer vaccine and then a Moderna booster seemed to have 75% effectiveness up to 9 weeks.

The report was based on an analysis of 148,000 Delta cases and 68,000 Omicron cases in the United Kingdom through Dec. 20. So far, the U.K. health officials wrote, Omicron infections appear to be less severe and less likely to lead to hospitalization than Delta infections. At that time, 132 people with lab-confirmed Omicron had been admitted to hospitals, and 14 deaths had been reported among ages 52-96.

“This analysis is preliminary because of the small numbers of Omicron cases currently in hospital and the limited spread of Omicron into older age groups as yet,” the report said.

The reinfection rate has also increased for the Omicron variant, the report found. Among the 116,000 people who had an Omicron infection, about 11,000 -- or 9.5% -- were linked to a previously confirmed infection, which is likely an undercount of reinfections. In the data analyzed, 69 Omicron cases were a third episode of COVID-19 infection, and 290 cases occurred 60-89 days after a first infection.

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

Booster shot protection against symptomatic COVID-19 caused by the Omicron variant appears to fade in about 10 weeks, according to new data from Britain.

U.K. health officials shared the data just before Christmas and noted that there haven’t been enough severe cases of the Omicron variant to calculate how well boosters protect against severe disease. But they believe the extra shots provide significant protection against hospitalization and death.

“It will be a few weeks before effectiveness against severe disease with Omicron can be estimated,” U.K. Health Security Agency officials wrote in the report. “However, based on experience with previous variants, this is likely to be substantially higher than the estimates against symptomatic disease.”

Since countries began reporting Omicron cases in November, multiple studies have suggested the variant is better at escaping antibodies from vaccination and previous infection, according to the New York Times. The U.K. report adds to that, noting that both the initial vaccine series and booster doses were less effective and faded faster against the Omicron variant than the Delta variant.

Among those who received two doses of the AstraZeneca vaccine, a booster of the Pfizer or Moderna vaccine was 60% effective at preventing symptomatic disease 2 to 4 weeks after the shot. But after 10 weeks, the Pfizer booster was 35% effective, and the Moderna booster was 45% effective. (The AstraZeneca vaccine is not authorized in the United States, but the Johnson & Johnson shot uses a similar technology, the New York Times reported.)

Among those who received three Pfizer doses, vaccine effectiveness was 70% about a week after the booster but dropped to 45% after 10 weeks. At the same time, those who received an initial two-dose series of the Pfizer vaccine and then a Moderna booster seemed to have 75% effectiveness up to 9 weeks.

The report was based on an analysis of 148,000 Delta cases and 68,000 Omicron cases in the United Kingdom through Dec. 20. So far, the U.K. health officials wrote, Omicron infections appear to be less severe and less likely to lead to hospitalization than Delta infections. At that time, 132 people with lab-confirmed Omicron had been admitted to hospitals, and 14 deaths had been reported among ages 52-96.

“This analysis is preliminary because of the small numbers of Omicron cases currently in hospital and the limited spread of Omicron into older age groups as yet,” the report said.

The reinfection rate has also increased for the Omicron variant, the report found. Among the 116,000 people who had an Omicron infection, about 11,000 -- or 9.5% -- were linked to a previously confirmed infection, which is likely an undercount of reinfections. In the data analyzed, 69 Omicron cases were a third episode of COVID-19 infection, and 290 cases occurred 60-89 days after a first infection.

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

Long-term exposure to formaldehyde on the job is linked to cognitive impairment down the road, new research suggests.

In a large observational study of adults aged 45-70 years, researchers found a 17% higher risk for cognitive problems in those with occupational formaldehyde exposure – and higher risks for those with longer duration of exposure.

“The effect of formaldehyde on the brain has been previously shown mainly in animal experiments, but very few studies have been done on humans,” lead author Noemie Letellier, PhD, Institute for Neurosciences of Montpellier, University of Montpellier (France), said in an interview.

“Our results show that being or having been occupationally exposed to formaldehyde is associated with cognitive impairment in a relatively young population,” Dr. Letellier said.

The findings were published online Dec. 22, 2021, in the journal Neurology.
 

Dose-effect relationship

The investigators assessed a representative sample of 75,322 adults in France (median age, 57.5 years; 53% women). All were part of the CONSTANCES cohort, an observational cohort with a focus on occupational and environmental factors. 

A total of 6,026 participants (8%) were exposed to formaldehyde during their careers. Their occupations included nurses, caregivers, medical technicians, workers in the textile, chemistry and metal industries, carpenters, and cleaners.

The researchers calculated lifetime formaldehyde exposure using a French job-exposure matrix created to estimate a person’s exposure to potential health hazards in different occupations.

Individuals were divided into three equal groups according to their years of exposure to formaldehyde. “Low” was considered to be 6 or fewer years of exposure, “medium” was 7-21 years, and “high” was 22 or more years.

Participants were also split into three groups according to their cumulative exposure (total lifetime formaldehyde exposure based on the probability, intensity, and frequency of exposure).
 

Prevention efforts needed

After adjusting for age, sex, education and other confounders, participants exposed to formaldehyde were at higher risk for global cognitive impairment (adjusted relative risk, 1.17; 95% confidence interval, 1.1-1.2).

Longer duration of exposure and high cumulative lifetime exposure were associated with worse cognitive impairment, “with a dose-effect relationship for exposure duration,” the researchers reported.

Those exposed to formaldehyde for 22 years or more had a 21% higher risk of global cognitive impairment and workers with the highest cumulative exposure had a 19% higher risk of cognitive impairment, compared with workers with no exposure.

Although workers with recent exposure showed higher cognitive impairment, “time may not fully attenuate formaldehyde-associated cognitive deficits, especially in highly exposed but also in moderately exposed workers,” the researchers wrote.

They caution that their findings only show an association and does not prove that exposure to formaldehyde causes cognitive impairment.

Nonetheless, Dr. Letellier encourages health care providers to “be aware of lifetime occupational exposure to target prevention efforts to the identified occupational groups.” This especially includes the care sector where the most people are exposed to formaldehyde, such as nurses, caregivers, and medical technicians.

“Despite the restrictions on the use of formaldehyde due to the better knowledge of its toxicity, especially its carcinogenic effect, formaldehyde is still widely used in many sectors. These results encourage prevention efforts to further limit worker exposure to formaldehyde,” Dr. Letellier said.
 

Relevant to health care workers

Commenting on the study, Shaheen E. Lakhan, MD, PhD, a neurologist in Newton, Mass., said in an interview that exposure to some degree of formaldehyde is found in every home and workplace, “from the floors to furniture.”

“If you have cigarette smoke in the environment, your exposure rises sharply. When limiting your exposure, it’s not only cancer that you are preventing, but also your brain health,” added Dr. Lakhan, who was not involved with the research.

He said the disturbances in cognitive function noted in the current study were “particularly relevant to health care workers, given the use of formaldehyde in sterilization, tissue pathology processing, and embalming.”

“Interestingly, with only past exposure, there seems to be some degree of cognitive recovery,” but it does not return to a level before any exposure when corrected for age and other factors, Dr. Lakhan said.

Some caveats should also be noted, he pointed out. The study included a French population, but regulators such as the U.S. Occupational Safety and Health Administration and the California Office of Environmental Health Hazard Assessment have strict standards on formaldehyde use in a variety of work settings.

On the flip side, given the COVID-19 pandemic, there has been greater use of chemical disinfectants in and out the workplace, some of which contain formaldehyde, Dr. Lakhan said.

In addition, he noted the study assessed data from 1950 to 2018, so prepandemic.

“A word of advice from a brain doc: Check with your employer on the level of occupational exposure to formaldehyde, heavy metals, and other toxic substances – and cross-reference with your local environmental standards,” Dr. Lakhan concluded.

The research was supported by a grant from the French Agency for Food, Environmental, and Occupational Health & Safety. The investigators and Dr. Lakhan disclosed no relevant financial relationships.

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

Long-term exposure to formaldehyde on the job is linked to cognitive impairment down the road, new research suggests.

In a large observational study of adults aged 45-70 years, researchers found a 17% higher risk for cognitive problems in those with occupational formaldehyde exposure – and higher risks for those with longer duration of exposure.

“The effect of formaldehyde on the brain has been previously shown mainly in animal experiments, but very few studies have been done on humans,” lead author Noemie Letellier, PhD, Institute for Neurosciences of Montpellier, University of Montpellier (France), said in an interview.

“Our results show that being or having been occupationally exposed to formaldehyde is associated with cognitive impairment in a relatively young population,” Dr. Letellier said.

The findings were published online Dec. 22, 2021, in the journal Neurology.
 

Dose-effect relationship

The investigators assessed a representative sample of 75,322 adults in France (median age, 57.5 years; 53% women). All were part of the CONSTANCES cohort, an observational cohort with a focus on occupational and environmental factors. 

A total of 6,026 participants (8%) were exposed to formaldehyde during their careers. Their occupations included nurses, caregivers, medical technicians, workers in the textile, chemistry and metal industries, carpenters, and cleaners.

The researchers calculated lifetime formaldehyde exposure using a French job-exposure matrix created to estimate a person’s exposure to potential health hazards in different occupations.

Individuals were divided into three equal groups according to their years of exposure to formaldehyde. “Low” was considered to be 6 or fewer years of exposure, “medium” was 7-21 years, and “high” was 22 or more years.

Participants were also split into three groups according to their cumulative exposure (total lifetime formaldehyde exposure based on the probability, intensity, and frequency of exposure).
 

Prevention efforts needed

After adjusting for age, sex, education and other confounders, participants exposed to formaldehyde were at higher risk for global cognitive impairment (adjusted relative risk, 1.17; 95% confidence interval, 1.1-1.2).

Longer duration of exposure and high cumulative lifetime exposure were associated with worse cognitive impairment, “with a dose-effect relationship for exposure duration,” the researchers reported.

Those exposed to formaldehyde for 22 years or more had a 21% higher risk of global cognitive impairment and workers with the highest cumulative exposure had a 19% higher risk of cognitive impairment, compared with workers with no exposure.

Although workers with recent exposure showed higher cognitive impairment, “time may not fully attenuate formaldehyde-associated cognitive deficits, especially in highly exposed but also in moderately exposed workers,” the researchers wrote.

They caution that their findings only show an association and does not prove that exposure to formaldehyde causes cognitive impairment.

Nonetheless, Dr. Letellier encourages health care providers to “be aware of lifetime occupational exposure to target prevention efforts to the identified occupational groups.” This especially includes the care sector where the most people are exposed to formaldehyde, such as nurses, caregivers, and medical technicians.

“Despite the restrictions on the use of formaldehyde due to the better knowledge of its toxicity, especially its carcinogenic effect, formaldehyde is still widely used in many sectors. These results encourage prevention efforts to further limit worker exposure to formaldehyde,” Dr. Letellier said.
 

Relevant to health care workers

Commenting on the study, Shaheen E. Lakhan, MD, PhD, a neurologist in Newton, Mass., said in an interview that exposure to some degree of formaldehyde is found in every home and workplace, “from the floors to furniture.”

“If you have cigarette smoke in the environment, your exposure rises sharply. When limiting your exposure, it’s not only cancer that you are preventing, but also your brain health,” added Dr. Lakhan, who was not involved with the research.

He said the disturbances in cognitive function noted in the current study were “particularly relevant to health care workers, given the use of formaldehyde in sterilization, tissue pathology processing, and embalming.”

“Interestingly, with only past exposure, there seems to be some degree of cognitive recovery,” but it does not return to a level before any exposure when corrected for age and other factors, Dr. Lakhan said.

Some caveats should also be noted, he pointed out. The study included a French population, but regulators such as the U.S. Occupational Safety and Health Administration and the California Office of Environmental Health Hazard Assessment have strict standards on formaldehyde use in a variety of work settings.

On the flip side, given the COVID-19 pandemic, there has been greater use of chemical disinfectants in and out the workplace, some of which contain formaldehyde, Dr. Lakhan said.

In addition, he noted the study assessed data from 1950 to 2018, so prepandemic.

“A word of advice from a brain doc: Check with your employer on the level of occupational exposure to formaldehyde, heavy metals, and other toxic substances – and cross-reference with your local environmental standards,” Dr. Lakhan concluded.

The research was supported by a grant from the French Agency for Food, Environmental, and Occupational Health & Safety. The investigators and Dr. Lakhan disclosed no relevant financial relationships.

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

Long-term exposure to formaldehyde on the job is linked to cognitive impairment down the road, new research suggests.

In a large observational study of adults aged 45-70 years, researchers found a 17% higher risk for cognitive problems in those with occupational formaldehyde exposure – and higher risks for those with longer duration of exposure.

“The effect of formaldehyde on the brain has been previously shown mainly in animal experiments, but very few studies have been done on humans,” lead author Noemie Letellier, PhD, Institute for Neurosciences of Montpellier, University of Montpellier (France), said in an interview.

“Our results show that being or having been occupationally exposed to formaldehyde is associated with cognitive impairment in a relatively young population,” Dr. Letellier said.

The findings were published online Dec. 22, 2021, in the journal Neurology.
 

Dose-effect relationship

The investigators assessed a representative sample of 75,322 adults in France (median age, 57.5 years; 53% women). All were part of the CONSTANCES cohort, an observational cohort with a focus on occupational and environmental factors. 

A total of 6,026 participants (8%) were exposed to formaldehyde during their careers. Their occupations included nurses, caregivers, medical technicians, workers in the textile, chemistry and metal industries, carpenters, and cleaners.

The researchers calculated lifetime formaldehyde exposure using a French job-exposure matrix created to estimate a person’s exposure to potential health hazards in different occupations.

Individuals were divided into three equal groups according to their years of exposure to formaldehyde. “Low” was considered to be 6 or fewer years of exposure, “medium” was 7-21 years, and “high” was 22 or more years.

Participants were also split into three groups according to their cumulative exposure (total lifetime formaldehyde exposure based on the probability, intensity, and frequency of exposure).
 

Prevention efforts needed

After adjusting for age, sex, education and other confounders, participants exposed to formaldehyde were at higher risk for global cognitive impairment (adjusted relative risk, 1.17; 95% confidence interval, 1.1-1.2).

Longer duration of exposure and high cumulative lifetime exposure were associated with worse cognitive impairment, “with a dose-effect relationship for exposure duration,” the researchers reported.

Those exposed to formaldehyde for 22 years or more had a 21% higher risk of global cognitive impairment and workers with the highest cumulative exposure had a 19% higher risk of cognitive impairment, compared with workers with no exposure.

Although workers with recent exposure showed higher cognitive impairment, “time may not fully attenuate formaldehyde-associated cognitive deficits, especially in highly exposed but also in moderately exposed workers,” the researchers wrote.

They caution that their findings only show an association and does not prove that exposure to formaldehyde causes cognitive impairment.

Nonetheless, Dr. Letellier encourages health care providers to “be aware of lifetime occupational exposure to target prevention efforts to the identified occupational groups.” This especially includes the care sector where the most people are exposed to formaldehyde, such as nurses, caregivers, and medical technicians.

“Despite the restrictions on the use of formaldehyde due to the better knowledge of its toxicity, especially its carcinogenic effect, formaldehyde is still widely used in many sectors. These results encourage prevention efforts to further limit worker exposure to formaldehyde,” Dr. Letellier said.
 

Relevant to health care workers

Commenting on the study, Shaheen E. Lakhan, MD, PhD, a neurologist in Newton, Mass., said in an interview that exposure to some degree of formaldehyde is found in every home and workplace, “from the floors to furniture.”

“If you have cigarette smoke in the environment, your exposure rises sharply. When limiting your exposure, it’s not only cancer that you are preventing, but also your brain health,” added Dr. Lakhan, who was not involved with the research.

He said the disturbances in cognitive function noted in the current study were “particularly relevant to health care workers, given the use of formaldehyde in sterilization, tissue pathology processing, and embalming.”

“Interestingly, with only past exposure, there seems to be some degree of cognitive recovery,” but it does not return to a level before any exposure when corrected for age and other factors, Dr. Lakhan said.

Some caveats should also be noted, he pointed out. The study included a French population, but regulators such as the U.S. Occupational Safety and Health Administration and the California Office of Environmental Health Hazard Assessment have strict standards on formaldehyde use in a variety of work settings.

On the flip side, given the COVID-19 pandemic, there has been greater use of chemical disinfectants in and out the workplace, some of which contain formaldehyde, Dr. Lakhan said.

In addition, he noted the study assessed data from 1950 to 2018, so prepandemic.

“A word of advice from a brain doc: Check with your employer on the level of occupational exposure to formaldehyde, heavy metals, and other toxic substances – and cross-reference with your local environmental standards,” Dr. Lakhan concluded.

The research was supported by a grant from the French Agency for Food, Environmental, and Occupational Health & Safety. The investigators and Dr. Lakhan disclosed no relevant financial relationships.

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

The antiviral remdesivir, an intravenous drug given mostly to seriously ill COVID-19 patients in hospitals, could keep unvaccinated people who become infected out of the hospital if given on an outpatient basis, a new study says.

Researchers studied 562 unvaccinated people from September 2020 to April 2021, according to the study published in the New England Journal of Medicine. The study determined the risk of hospitalization or death was 87% lower in study participants who were given remdesivir than participants who received a placebo.

All participants were at high risk of developing severe COVID-19 because of their age – they were over 60 – or because they had an underlying medical condition such as diabetes or obesity.

An important caveat: The findings are based on data collected before the Delta variant surged in the summer of 2021 or the Omicron variant surged late in the year, the Washington Post reported.

The new study says the drug could be helpful in keeping vaccinated as well as unvaccinated people out of the hospital – an important factor as the Omicron surge threatens to overwhelm health systems around the world.

Remdesivir could be a boon for COVID-19 patients in parts of the world that don’t have vaccines or for patients with immunocompromised systems.

“These data provide evidence that a 3-day course of remdesivir could play a critical role in helping COVID-19 patients stay out of the hospital,” Robert L. Gottlieb, MD, PhD, the therapeutic lead for COVID-19 research at Baylor Scott & White Health in Dallas, said in a news release from Gilead Pharmaceuticals. “While our hospitals are ready to assist patients in need, prevention and early intervention are preferable to reduce the risk of disease progression and allow patients not requiring oxygen to recover from home when appropriate.”

Remdesivir was the first antiviral for COVID-19 authorized by the Food and Drug Administration. It was given to then-President Donald Trump when he was hospitalized with COVID-19 in October 2020.

Gilead released the study findings in September.

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

The antiviral remdesivir, an intravenous drug given mostly to seriously ill COVID-19 patients in hospitals, could keep unvaccinated people who become infected out of the hospital if given on an outpatient basis, a new study says.

Researchers studied 562 unvaccinated people from September 2020 to April 2021, according to the study published in the New England Journal of Medicine. The study determined the risk of hospitalization or death was 87% lower in study participants who were given remdesivir than participants who received a placebo.

All participants were at high risk of developing severe COVID-19 because of their age – they were over 60 – or because they had an underlying medical condition such as diabetes or obesity.

An important caveat: The findings are based on data collected before the Delta variant surged in the summer of 2021 or the Omicron variant surged late in the year, the Washington Post reported.

The new study says the drug could be helpful in keeping vaccinated as well as unvaccinated people out of the hospital – an important factor as the Omicron surge threatens to overwhelm health systems around the world.

Remdesivir could be a boon for COVID-19 patients in parts of the world that don’t have vaccines or for patients with immunocompromised systems.

“These data provide evidence that a 3-day course of remdesivir could play a critical role in helping COVID-19 patients stay out of the hospital,” Robert L. Gottlieb, MD, PhD, the therapeutic lead for COVID-19 research at Baylor Scott & White Health in Dallas, said in a news release from Gilead Pharmaceuticals. “While our hospitals are ready to assist patients in need, prevention and early intervention are preferable to reduce the risk of disease progression and allow patients not requiring oxygen to recover from home when appropriate.”

Remdesivir was the first antiviral for COVID-19 authorized by the Food and Drug Administration. It was given to then-President Donald Trump when he was hospitalized with COVID-19 in October 2020.

Gilead released the study findings in September.

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

The antiviral remdesivir, an intravenous drug given mostly to seriously ill COVID-19 patients in hospitals, could keep unvaccinated people who become infected out of the hospital if given on an outpatient basis, a new study says.

Researchers studied 562 unvaccinated people from September 2020 to April 2021, according to the study published in the New England Journal of Medicine. The study determined the risk of hospitalization or death was 87% lower in study participants who were given remdesivir than participants who received a placebo.

All participants were at high risk of developing severe COVID-19 because of their age – they were over 60 – or because they had an underlying medical condition such as diabetes or obesity.

An important caveat: The findings are based on data collected before the Delta variant surged in the summer of 2021 or the Omicron variant surged late in the year, the Washington Post reported.

The new study says the drug could be helpful in keeping vaccinated as well as unvaccinated people out of the hospital – an important factor as the Omicron surge threatens to overwhelm health systems around the world.

Remdesivir could be a boon for COVID-19 patients in parts of the world that don’t have vaccines or for patients with immunocompromised systems.

“These data provide evidence that a 3-day course of remdesivir could play a critical role in helping COVID-19 patients stay out of the hospital,” Robert L. Gottlieb, MD, PhD, the therapeutic lead for COVID-19 research at Baylor Scott & White Health in Dallas, said in a news release from Gilead Pharmaceuticals. “While our hospitals are ready to assist patients in need, prevention and early intervention are preferable to reduce the risk of disease progression and allow patients not requiring oxygen to recover from home when appropriate.”

Remdesivir was the first antiviral for COVID-19 authorized by the Food and Drug Administration. It was given to then-President Donald Trump when he was hospitalized with COVID-19 in October 2020.

Gilead released the study findings in September.

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

Patients ages 65 years and older with atopic dermatitis (AD) have similar disease severity when compared with younger adult patients, but they have more profound sleep disturbances, especially trouble staying asleep.

Those are key findings from a cross-sectional study that Jaya Manjunath, BS, and Jonathan I. Silverberg, MD, PhD, MPH, presented during a poster session at the Revolutionizing Atopic Dermatitis symposium.

“Atopic dermatitis is a chronic, pruritic skin disease associated with sleep disturbance and fatigue affecting adults of all ages,” they wrote. “When caring for geriatric patients, several factors such as sleep disturbance, polypharmacy, cognition, social support, and mobility should be considered. However, little is known about the characteristics of atopic dermatitis in the geriatric population.”

Ms. Manjunath, a student at George Washington University, Washington, and Dr. Silverberg, director of clinical research in the department of dermatology at GWU, recruited patients with AD aged 18 years and older diagnosed by Hanifin-Rajka criteria who were evaluated at an academic medical center between 2014 and 2019. They underwent full body skin exams and completed electronic questionnaires. AD severity was assessed with the Eczema Area and Severity Index (EASI), Scoring Atopic Dermatitis (SCORAD) total and itch subscores, Investigator’s Global Assessment (IGA), patient-reported Global Assessment of AD severity, and the Patient-Oriented Eczema Measure (POEM).

The researchers also assessed the frequency of sleep disturbances, including difficulty falling asleep and staying asleep, and used multivariable logistic regression models to evaluate associations of age (65 and older vs. 18-64 years) with AD severity, sleep disturbance or fatigue, controlling for total POEM score, sex, and race.

Using adjusted odds ratios, Ms. Manjunath and Dr. Silverberg found that being 65 or older was not associated with AD severity on the EASI (adjusted odds ratio, 1.47); total SCORAD (aOR, 1.10), and itch subscore (aOR, 1.00); IGA (aOR, 1.87); patient-reported Global Assessment of AD severity (aOR, 0.80), or the patient-oriented eczema measure (aOR, 0.55), associations that were not statistically significant.

However, the researchers found that older adult age was associated with an increased number of nights of sleep disturbance from AD in the past week (aOR, 2.14; P = .0142), as well as increased fatigue in the past 7 days (aOR, 1.81; P = .0313), trouble sleeping in the past 7 days (aOR, 1.98; P = .0118), and trouble staying asleep in the past 7 days (aOR, 2.26; P = .0030), but not with difficulty falling asleep in the last 7 days (aOR, 1.16; P = .5996).

“Future studies are needed to determine why geriatric AD patients have increased sleep disturbance and optimal interventions to address their sleep disturbance,” the researchers concluded.

The study was supported by the Agency for Healthcare Research and Quality, the Dermatology Foundation, and by an unrestricted grant from Galderma. Ms. Manjunath disclosed no relevant financial relationships. Dr. Silverberg reported that he is a consultant to and/or an advisory board member for several pharmaceutical companies. He is also a speaker for Regeneron and Sanofi and has received a grant from Galderma.

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

Patients ages 65 years and older with atopic dermatitis (AD) have similar disease severity when compared with younger adult patients, but they have more profound sleep disturbances, especially trouble staying asleep.

Those are key findings from a cross-sectional study that Jaya Manjunath, BS, and Jonathan I. Silverberg, MD, PhD, MPH, presented during a poster session at the Revolutionizing Atopic Dermatitis symposium.

“Atopic dermatitis is a chronic, pruritic skin disease associated with sleep disturbance and fatigue affecting adults of all ages,” they wrote. “When caring for geriatric patients, several factors such as sleep disturbance, polypharmacy, cognition, social support, and mobility should be considered. However, little is known about the characteristics of atopic dermatitis in the geriatric population.”

Ms. Manjunath, a student at George Washington University, Washington, and Dr. Silverberg, director of clinical research in the department of dermatology at GWU, recruited patients with AD aged 18 years and older diagnosed by Hanifin-Rajka criteria who were evaluated at an academic medical center between 2014 and 2019. They underwent full body skin exams and completed electronic questionnaires. AD severity was assessed with the Eczema Area and Severity Index (EASI), Scoring Atopic Dermatitis (SCORAD) total and itch subscores, Investigator’s Global Assessment (IGA), patient-reported Global Assessment of AD severity, and the Patient-Oriented Eczema Measure (POEM).

The researchers also assessed the frequency of sleep disturbances, including difficulty falling asleep and staying asleep, and used multivariable logistic regression models to evaluate associations of age (65 and older vs. 18-64 years) with AD severity, sleep disturbance or fatigue, controlling for total POEM score, sex, and race.

Using adjusted odds ratios, Ms. Manjunath and Dr. Silverberg found that being 65 or older was not associated with AD severity on the EASI (adjusted odds ratio, 1.47); total SCORAD (aOR, 1.10), and itch subscore (aOR, 1.00); IGA (aOR, 1.87); patient-reported Global Assessment of AD severity (aOR, 0.80), or the patient-oriented eczema measure (aOR, 0.55), associations that were not statistically significant.

However, the researchers found that older adult age was associated with an increased number of nights of sleep disturbance from AD in the past week (aOR, 2.14; P = .0142), as well as increased fatigue in the past 7 days (aOR, 1.81; P = .0313), trouble sleeping in the past 7 days (aOR, 1.98; P = .0118), and trouble staying asleep in the past 7 days (aOR, 2.26; P = .0030), but not with difficulty falling asleep in the last 7 days (aOR, 1.16; P = .5996).

“Future studies are needed to determine why geriatric AD patients have increased sleep disturbance and optimal interventions to address their sleep disturbance,” the researchers concluded.

The study was supported by the Agency for Healthcare Research and Quality, the Dermatology Foundation, and by an unrestricted grant from Galderma. Ms. Manjunath disclosed no relevant financial relationships. Dr. Silverberg reported that he is a consultant to and/or an advisory board member for several pharmaceutical companies. He is also a speaker for Regeneron and Sanofi and has received a grant from Galderma.

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

Patients ages 65 years and older with atopic dermatitis (AD) have similar disease severity when compared with younger adult patients, but they have more profound sleep disturbances, especially trouble staying asleep.

Those are key findings from a cross-sectional study that Jaya Manjunath, BS, and Jonathan I. Silverberg, MD, PhD, MPH, presented during a poster session at the Revolutionizing Atopic Dermatitis symposium.

“Atopic dermatitis is a chronic, pruritic skin disease associated with sleep disturbance and fatigue affecting adults of all ages,” they wrote. “When caring for geriatric patients, several factors such as sleep disturbance, polypharmacy, cognition, social support, and mobility should be considered. However, little is known about the characteristics of atopic dermatitis in the geriatric population.”

Ms. Manjunath, a student at George Washington University, Washington, and Dr. Silverberg, director of clinical research in the department of dermatology at GWU, recruited patients with AD aged 18 years and older diagnosed by Hanifin-Rajka criteria who were evaluated at an academic medical center between 2014 and 2019. They underwent full body skin exams and completed electronic questionnaires. AD severity was assessed with the Eczema Area and Severity Index (EASI), Scoring Atopic Dermatitis (SCORAD) total and itch subscores, Investigator’s Global Assessment (IGA), patient-reported Global Assessment of AD severity, and the Patient-Oriented Eczema Measure (POEM).

The researchers also assessed the frequency of sleep disturbances, including difficulty falling asleep and staying asleep, and used multivariable logistic regression models to evaluate associations of age (65 and older vs. 18-64 years) with AD severity, sleep disturbance or fatigue, controlling for total POEM score, sex, and race.

Using adjusted odds ratios, Ms. Manjunath and Dr. Silverberg found that being 65 or older was not associated with AD severity on the EASI (adjusted odds ratio, 1.47); total SCORAD (aOR, 1.10), and itch subscore (aOR, 1.00); IGA (aOR, 1.87); patient-reported Global Assessment of AD severity (aOR, 0.80), or the patient-oriented eczema measure (aOR, 0.55), associations that were not statistically significant.

However, the researchers found that older adult age was associated with an increased number of nights of sleep disturbance from AD in the past week (aOR, 2.14; P = .0142), as well as increased fatigue in the past 7 days (aOR, 1.81; P = .0313), trouble sleeping in the past 7 days (aOR, 1.98; P = .0118), and trouble staying asleep in the past 7 days (aOR, 2.26; P = .0030), but not with difficulty falling asleep in the last 7 days (aOR, 1.16; P = .5996).

“Future studies are needed to determine why geriatric AD patients have increased sleep disturbance and optimal interventions to address their sleep disturbance,” the researchers concluded.

The study was supported by the Agency for Healthcare Research and Quality, the Dermatology Foundation, and by an unrestricted grant from Galderma. Ms. Manjunath disclosed no relevant financial relationships. Dr. Silverberg reported that he is a consultant to and/or an advisory board member for several pharmaceutical companies. He is also a speaker for Regeneron and Sanofi and has received a grant from Galderma.

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

Deep, repetitive transcranial magnetic stimulation (TMS) is safe and effective in decreasing symptoms of alcohol addiction and brain reactivity, new research suggests.

Thinkstockphotos.com

In a randomized, double-blind, sham-controlled trial, participants who received TMS targeting the medial prefrontal cortex (mPFC) and anterior cingulate cortex (ACC) for 3 weeks showed significantly reduced heavy drinking days, compared with a group who received a sham treatment.

The active-treatment group also reported significantly less alcohol craving and showed less functional connectivity on MRI in areas of the brain that can trigger craving and relapse.

Clinicians should “keep their eyes open” in the wake of this phase 2 trial, cocorresponding author Markus Heilig, MD, PhD, professor of psychiatry and director at the Center for Social and Affective Neuroscience, department of biomedical and clinical sciences, Linköping (Sweden) University, said in an interview.

“If and when this replicates in the equivalent of a phase 3 study, we will actually have a completely novel treatment available for this difficult to treat and very impactful disease,” Dr. Heilig said.

The findings were published online Dec. 5, 2021, in Biological Psychiatry.
 

Proof of concept

In the proof-of-concept trial, researchers enrolled and randomly assigned 51 treatment-seeking adults with moderate to severe alcohol dependence to receive active or sham treatment. Before treatment, participants completed “craving induction,” which included holding and smelling but not consuming an alcoholic beverage.

Dr. Heilig noted that, before stimulating the brain, “you want to make it as malleable as possible;” and brain networks tend to be more malleable when they are active.

During the 3-week treatment phase, active or sham stimulations were delivered in five 30-minute sessions per week. During the sessions, all participants wore a helmet with a deep TMS coil produced by BrainsWay.

In the active-stimulation group, each session included 100 trains of 30 pulses at 10 Hz (3 seconds) with 15-second intervals, for a total of 3,000 pulses. The sham stimulation produced the same acoustic artifact and generated skin sensations mimicking those of the active stimulation, but it did not involve a magnetic field.

Participants, operators, and raters were blinded to the type of coil used.

Five participants relapsed during the first 3 weeks of treatment and were excluded from the analysis. The mean age of those completing treatment (n = 23 in each group) was 43 years, and two-thirds were men.

The gender makeup of the study reflects “what a real treatment-seeking group looks like,” Dr. Heilig said.

During the 12-week follow-up phase, five additional participants dropped out.
 

‘Pretty robust’ treatment effect

The primary outcome was reduction in percentage of heavy drinking days (pHDD), defined as consuming at least five drinks of 12 grams of alcohol per day for men and at least four such drinks for women.

Initially, pHDD dropped in both groups, which is something generally seen in alcohol studies, said Dr. Heilig. “The moment people decide to participate in a study, everybody drops their consumption, [which] biases a study like this against picking up an effect.”

However, heavy drinking days increased during follow-up in the sham group but remained low in the active-treatment group. The mean pHDD was significantly lower in the active versus sham groups (2.9% vs. 10.6%, P = .037).

“So despite the bias, a treatment effect does emerge,” and was “pretty robust,” Dr. Heilig said.

This was supported by a significant group difference in weekly alcohol consumption and a trend-level difference in percentage of alcohol-positive urine samples.

A secondary outcome was change in alcohol craving, assessed with the Penn Alcohol Craving Scale; PACS scores decreased in both groups during treatment but was more steeply reduced in the active group. During follow-up, craving levels increased to a lesser extent in the active group.

MRI scans showed reduced connectivity from the mPFC to the subgenual ACC, an area involved in negative emotions that can trigger craving and relapse, said Dr. Heilig. There was also reduced connectivity between the dorsal ACC and caudate, a circuit involved in the reward system.

In treatment trials, researchers look for a biomarker of target engagement. However, “to date, there has been no study using TMS that has actually demonstrated the intervention had a measurable effect on brain activity. So to me, this is a biomarker; it did something to the brain,” Dr. Heilig said.
 

Delving deeper into the brain

The results underline the importance of stimulating deeper parts of the brain, cocorresponding author Abraham Zangen, PhD, head of the Brain Stimulation and Behavior Lab and chair of the psychobiology brain program, Ben Gurion University, Be’er Sheva, Israel, said in an interview.

Early TMS studies, which involved superficial brain stimulation, reduced cigarette consumption but was not associated with quitting, Dr. Zangen said. “It was only when we targeted deeper parts of the prefrontal cortex that we were able to induce smoking cessation.”

It was this research that led to approval by the Food and Drug Administration of deep TMS for smoking cessation.

This same deep-brain approach was used in the current study. “So the emphasis on the technology that allows penetration into deeper parts of the brain and targeting the relevant pathological circuitry of addiction is a key complement of the success of this study,” Dr. Zangen said.

Results also showed no serious adverse events. Only a few participants reported transient headaches, which all resolved spontaneously; and frequency did not differ between groups.

Dr. Heilig now hopes to carry out a multisite phase 3 study of the intervention and would suggest it involve 4 (instead of 3) weeks of initial treatment and then a weekly booster session. “There are biological reasons to believe that might be more efficient, although we don’t have the data,” he said.

On the other hand, he noted, the longer the trial, the more difficult it might be to recruit patients.
 

Clinically significant?

Commenting on the study, Derek Blevins, MD, assistant professor of clinical psychiatry at Columbia University and research psychiatrist, division on substance use disorders, New York State Psychiatric Institute, both in New York, called the research “really exciting.”

To date, most TMS studies have been relatively small and looked at a target such as craving. Although these studies did show some effect, the clinical significance of that effect was unclear, said Dr. Blevins, who was not involved with the current research.

“I think this new study actually demonstrated a clinically significant effect of a noninvasive treatment for a disease that’s very difficult to treat,” he said.

A potential limitation of the study, however, was it required abstinence, Dr. Blevins noted. It would be “really helpful” to understand how TMS might aid individuals such as those who relapsed during the study, “because they’re the more treatment-refractory individuals we see in clinical practice.”

If a multicenter trial is launched, Dr. Blevins said he would also like it to include an ethnically and racially diverse population.

The study was supported by grants from the European Union’s Horizon 2020 research and innovation program and the Swedish Research Council. Dr. Heilig reported having received consulting fees, research support, or other compensation from Indivior, Camurus, BrainsWay, Aelis Farma, and Janssen Pharmaceuticals. Dr. Zangen is an inventor of deep TMS coils and has financial interest in BrainsWay, which produces and markets these coils. Dr. Blevins reported no relevant financial relationships.

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

Deep, repetitive transcranial magnetic stimulation (TMS) is safe and effective in decreasing symptoms of alcohol addiction and brain reactivity, new research suggests.

Thinkstockphotos.com

In a randomized, double-blind, sham-controlled trial, participants who received TMS targeting the medial prefrontal cortex (mPFC) and anterior cingulate cortex (ACC) for 3 weeks showed significantly reduced heavy drinking days, compared with a group who received a sham treatment.

The active-treatment group also reported significantly less alcohol craving and showed less functional connectivity on MRI in areas of the brain that can trigger craving and relapse.

Clinicians should “keep their eyes open” in the wake of this phase 2 trial, cocorresponding author Markus Heilig, MD, PhD, professor of psychiatry and director at the Center for Social and Affective Neuroscience, department of biomedical and clinical sciences, Linköping (Sweden) University, said in an interview.

“If and when this replicates in the equivalent of a phase 3 study, we will actually have a completely novel treatment available for this difficult to treat and very impactful disease,” Dr. Heilig said.

The findings were published online Dec. 5, 2021, in Biological Psychiatry.
 

Proof of concept

In the proof-of-concept trial, researchers enrolled and randomly assigned 51 treatment-seeking adults with moderate to severe alcohol dependence to receive active or sham treatment. Before treatment, participants completed “craving induction,” which included holding and smelling but not consuming an alcoholic beverage.

Dr. Heilig noted that, before stimulating the brain, “you want to make it as malleable as possible;” and brain networks tend to be more malleable when they are active.

During the 3-week treatment phase, active or sham stimulations were delivered in five 30-minute sessions per week. During the sessions, all participants wore a helmet with a deep TMS coil produced by BrainsWay.

In the active-stimulation group, each session included 100 trains of 30 pulses at 10 Hz (3 seconds) with 15-second intervals, for a total of 3,000 pulses. The sham stimulation produced the same acoustic artifact and generated skin sensations mimicking those of the active stimulation, but it did not involve a magnetic field.

Participants, operators, and raters were blinded to the type of coil used.

Five participants relapsed during the first 3 weeks of treatment and were excluded from the analysis. The mean age of those completing treatment (n = 23 in each group) was 43 years, and two-thirds were men.

The gender makeup of the study reflects “what a real treatment-seeking group looks like,” Dr. Heilig said.

During the 12-week follow-up phase, five additional participants dropped out.
 

‘Pretty robust’ treatment effect

The primary outcome was reduction in percentage of heavy drinking days (pHDD), defined as consuming at least five drinks of 12 grams of alcohol per day for men and at least four such drinks for women.

Initially, pHDD dropped in both groups, which is something generally seen in alcohol studies, said Dr. Heilig. “The moment people decide to participate in a study, everybody drops their consumption, [which] biases a study like this against picking up an effect.”

However, heavy drinking days increased during follow-up in the sham group but remained low in the active-treatment group. The mean pHDD was significantly lower in the active versus sham groups (2.9% vs. 10.6%, P = .037).

“So despite the bias, a treatment effect does emerge,” and was “pretty robust,” Dr. Heilig said.

This was supported by a significant group difference in weekly alcohol consumption and a trend-level difference in percentage of alcohol-positive urine samples.

A secondary outcome was change in alcohol craving, assessed with the Penn Alcohol Craving Scale; PACS scores decreased in both groups during treatment but was more steeply reduced in the active group. During follow-up, craving levels increased to a lesser extent in the active group.

MRI scans showed reduced connectivity from the mPFC to the subgenual ACC, an area involved in negative emotions that can trigger craving and relapse, said Dr. Heilig. There was also reduced connectivity between the dorsal ACC and caudate, a circuit involved in the reward system.

In treatment trials, researchers look for a biomarker of target engagement. However, “to date, there has been no study using TMS that has actually demonstrated the intervention had a measurable effect on brain activity. So to me, this is a biomarker; it did something to the brain,” Dr. Heilig said.
 

Delving deeper into the brain

The results underline the importance of stimulating deeper parts of the brain, cocorresponding author Abraham Zangen, PhD, head of the Brain Stimulation and Behavior Lab and chair of the psychobiology brain program, Ben Gurion University, Be’er Sheva, Israel, said in an interview.

Early TMS studies, which involved superficial brain stimulation, reduced cigarette consumption but was not associated with quitting, Dr. Zangen said. “It was only when we targeted deeper parts of the prefrontal cortex that we were able to induce smoking cessation.”

It was this research that led to approval by the Food and Drug Administration of deep TMS for smoking cessation.

This same deep-brain approach was used in the current study. “So the emphasis on the technology that allows penetration into deeper parts of the brain and targeting the relevant pathological circuitry of addiction is a key complement of the success of this study,” Dr. Zangen said.

Results also showed no serious adverse events. Only a few participants reported transient headaches, which all resolved spontaneously; and frequency did not differ between groups.

Dr. Heilig now hopes to carry out a multisite phase 3 study of the intervention and would suggest it involve 4 (instead of 3) weeks of initial treatment and then a weekly booster session. “There are biological reasons to believe that might be more efficient, although we don’t have the data,” he said.

On the other hand, he noted, the longer the trial, the more difficult it might be to recruit patients.
 

Clinically significant?

Commenting on the study, Derek Blevins, MD, assistant professor of clinical psychiatry at Columbia University and research psychiatrist, division on substance use disorders, New York State Psychiatric Institute, both in New York, called the research “really exciting.”

To date, most TMS studies have been relatively small and looked at a target such as craving. Although these studies did show some effect, the clinical significance of that effect was unclear, said Dr. Blevins, who was not involved with the current research.

“I think this new study actually demonstrated a clinically significant effect of a noninvasive treatment for a disease that’s very difficult to treat,” he said.

A potential limitation of the study, however, was it required abstinence, Dr. Blevins noted. It would be “really helpful” to understand how TMS might aid individuals such as those who relapsed during the study, “because they’re the more treatment-refractory individuals we see in clinical practice.”

If a multicenter trial is launched, Dr. Blevins said he would also like it to include an ethnically and racially diverse population.

The study was supported by grants from the European Union’s Horizon 2020 research and innovation program and the Swedish Research Council. Dr. Heilig reported having received consulting fees, research support, or other compensation from Indivior, Camurus, BrainsWay, Aelis Farma, and Janssen Pharmaceuticals. Dr. Zangen is an inventor of deep TMS coils and has financial interest in BrainsWay, which produces and markets these coils. Dr. Blevins reported no relevant financial relationships.

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

Deep, repetitive transcranial magnetic stimulation (TMS) is safe and effective in decreasing symptoms of alcohol addiction and brain reactivity, new research suggests.

Thinkstockphotos.com

In a randomized, double-blind, sham-controlled trial, participants who received TMS targeting the medial prefrontal cortex (mPFC) and anterior cingulate cortex (ACC) for 3 weeks showed significantly reduced heavy drinking days, compared with a group who received a sham treatment.

The active-treatment group also reported significantly less alcohol craving and showed less functional connectivity on MRI in areas of the brain that can trigger craving and relapse.

Clinicians should “keep their eyes open” in the wake of this phase 2 trial, cocorresponding author Markus Heilig, MD, PhD, professor of psychiatry and director at the Center for Social and Affective Neuroscience, department of biomedical and clinical sciences, Linköping (Sweden) University, said in an interview.

“If and when this replicates in the equivalent of a phase 3 study, we will actually have a completely novel treatment available for this difficult to treat and very impactful disease,” Dr. Heilig said.

The findings were published online Dec. 5, 2021, in Biological Psychiatry.
 

Proof of concept

In the proof-of-concept trial, researchers enrolled and randomly assigned 51 treatment-seeking adults with moderate to severe alcohol dependence to receive active or sham treatment. Before treatment, participants completed “craving induction,” which included holding and smelling but not consuming an alcoholic beverage.

Dr. Heilig noted that, before stimulating the brain, “you want to make it as malleable as possible;” and brain networks tend to be more malleable when they are active.

During the 3-week treatment phase, active or sham stimulations were delivered in five 30-minute sessions per week. During the sessions, all participants wore a helmet with a deep TMS coil produced by BrainsWay.

In the active-stimulation group, each session included 100 trains of 30 pulses at 10 Hz (3 seconds) with 15-second intervals, for a total of 3,000 pulses. The sham stimulation produced the same acoustic artifact and generated skin sensations mimicking those of the active stimulation, but it did not involve a magnetic field.

Participants, operators, and raters were blinded to the type of coil used.

Five participants relapsed during the first 3 weeks of treatment and were excluded from the analysis. The mean age of those completing treatment (n = 23 in each group) was 43 years, and two-thirds were men.

The gender makeup of the study reflects “what a real treatment-seeking group looks like,” Dr. Heilig said.

During the 12-week follow-up phase, five additional participants dropped out.
 

‘Pretty robust’ treatment effect

The primary outcome was reduction in percentage of heavy drinking days (pHDD), defined as consuming at least five drinks of 12 grams of alcohol per day for men and at least four such drinks for women.

Initially, pHDD dropped in both groups, which is something generally seen in alcohol studies, said Dr. Heilig. “The moment people decide to participate in a study, everybody drops their consumption, [which] biases a study like this against picking up an effect.”

However, heavy drinking days increased during follow-up in the sham group but remained low in the active-treatment group. The mean pHDD was significantly lower in the active versus sham groups (2.9% vs. 10.6%, P = .037).

“So despite the bias, a treatment effect does emerge,” and was “pretty robust,” Dr. Heilig said.

This was supported by a significant group difference in weekly alcohol consumption and a trend-level difference in percentage of alcohol-positive urine samples.

A secondary outcome was change in alcohol craving, assessed with the Penn Alcohol Craving Scale; PACS scores decreased in both groups during treatment but was more steeply reduced in the active group. During follow-up, craving levels increased to a lesser extent in the active group.

MRI scans showed reduced connectivity from the mPFC to the subgenual ACC, an area involved in negative emotions that can trigger craving and relapse, said Dr. Heilig. There was also reduced connectivity between the dorsal ACC and caudate, a circuit involved in the reward system.

In treatment trials, researchers look for a biomarker of target engagement. However, “to date, there has been no study using TMS that has actually demonstrated the intervention had a measurable effect on brain activity. So to me, this is a biomarker; it did something to the brain,” Dr. Heilig said.
 

Delving deeper into the brain

The results underline the importance of stimulating deeper parts of the brain, cocorresponding author Abraham Zangen, PhD, head of the Brain Stimulation and Behavior Lab and chair of the psychobiology brain program, Ben Gurion University, Be’er Sheva, Israel, said in an interview.

Early TMS studies, which involved superficial brain stimulation, reduced cigarette consumption but was not associated with quitting, Dr. Zangen said. “It was only when we targeted deeper parts of the prefrontal cortex that we were able to induce smoking cessation.”

It was this research that led to approval by the Food and Drug Administration of deep TMS for smoking cessation.

This same deep-brain approach was used in the current study. “So the emphasis on the technology that allows penetration into deeper parts of the brain and targeting the relevant pathological circuitry of addiction is a key complement of the success of this study,” Dr. Zangen said.

Results also showed no serious adverse events. Only a few participants reported transient headaches, which all resolved spontaneously; and frequency did not differ between groups.

Dr. Heilig now hopes to carry out a multisite phase 3 study of the intervention and would suggest it involve 4 (instead of 3) weeks of initial treatment and then a weekly booster session. “There are biological reasons to believe that might be more efficient, although we don’t have the data,” he said.

On the other hand, he noted, the longer the trial, the more difficult it might be to recruit patients.
 

Clinically significant?

Commenting on the study, Derek Blevins, MD, assistant professor of clinical psychiatry at Columbia University and research psychiatrist, division on substance use disorders, New York State Psychiatric Institute, both in New York, called the research “really exciting.”

To date, most TMS studies have been relatively small and looked at a target such as craving. Although these studies did show some effect, the clinical significance of that effect was unclear, said Dr. Blevins, who was not involved with the current research.

“I think this new study actually demonstrated a clinically significant effect of a noninvasive treatment for a disease that’s very difficult to treat,” he said.

A potential limitation of the study, however, was it required abstinence, Dr. Blevins noted. It would be “really helpful” to understand how TMS might aid individuals such as those who relapsed during the study, “because they’re the more treatment-refractory individuals we see in clinical practice.”

If a multicenter trial is launched, Dr. Blevins said he would also like it to include an ethnically and racially diverse population.

The study was supported by grants from the European Union’s Horizon 2020 research and innovation program and the Swedish Research Council. Dr. Heilig reported having received consulting fees, research support, or other compensation from Indivior, Camurus, BrainsWay, Aelis Farma, and Janssen Pharmaceuticals. Dr. Zangen is an inventor of deep TMS coils and has financial interest in BrainsWay, which produces and markets these coils. Dr. Blevins reported no relevant financial relationships.

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

Older adults who participate in even light physical activity (LPA) may have a lower risk of developing dementia, new research suggests.

In a retrospective analysis of more than 62,000 individuals aged 65 or older without preexisting dementia, 6% developed dementia.

Compared with inactive individuals, “insufficiently active,” “active,” and “highly active” individuals all had a 10%, 20%, and 28% lower risk for dementia, respectively. And this association was consistent regardless of age, sex, other comorbidities, or after the researchers censored for stroke.

Even the lowest amount of LPA was associated with reduced dementia risk, investigators noted.

“In older adults, an increased physical activity level, including a low amount of LPA, was associated with a reduced risk of dementia,” Minjae Yoon, MD, division of cardiology, Severance Cardiovascular Hospital, Yonsei University, Seoul, South Korea, and colleagues wrote.

“Promotion of LPA might reduce the risk of dementia in older adults,” they added.

The findings were published online in JAMA Network Open.
 

Reverse causation?

Physical activity has been shown previously to be associated with reduced dementia risk. Current World Health Organization guidelines recommend that adults with normal cognition should engage in PA to reduce their risk for cognitive decline.

However, some studies have not yielded this result, “suggesting that previous findings showing a lower risk of dementia in physically active people could be attributed to reverse causation,” the investigators noted. Additionally, previous research regarding exercise intensity has been “inconsistent” concerning the role of LPA in reducing dementia risk.

Many older adults with frailty and comorbidity cannot perform intense or even moderate PA, therefore “these adults would have to gain the benefits of physical activity from LPA,” the researchers noted.

To clarify the potential association between PA and new-onset dementia, they focused specifically on the “dose-response association” between PA and dementia – especially LPA.

Between 2009 and 2012, the investigators enrolled 62,286 older individuals (60.4% women; mean age, 73.2 years) with available health checkup data from the National Health Insurance Service–Senior Database of Korea. All had no history of dementia.

Leisure-time PA was assessed with self-report questionnaires that used a 7-day recall method and included three questions regarding usual frequency (in days per week):

• Vigorous PA (VPA) for at least 20 minutes
• Moderate-intensity PA (MPA) for at least 30 minutes 
• LPA for at least 30 minutes

VPA was defined as “intense exercise that caused severe shortness of breath, MPA was defined as activity causing mild shortness of breath, and LPA was defined as “walking at a slow or leisurely pace.”

PA-related energy expenditure was also calculated in metabolic equivalent (MET) minutes per week by “summing the product of frequency, intensity, and duration,” the investigators noted.

Participants were stratified on the basis of their weekly total PA levels into the following groups:

• Inactive (no LPA beyond basic movements)
• Insufficiently active (less than the recommended target range of 1-499 MET-min/wk)
• Active (meeting the recommended target range of 500-999 MET-min/wk)
• Highly active (exceeding the recommended target range of at least 1,000 MET-min/wk)

Of all participants, 35% were categorized as inactive, 25% were insufficiently active, 24.4% were active, and 15.2% were highly active.
 

Controversy remains

During the total median follow-up of 42 months, 6% of participants had all-cause dementia. After the researchers excluded the first 2 years, incidence of dementia was 21.6 per 1000 person-years during follow-up. 

“The cumulative incidence of dementia was associated with a progressively decreasing trend with increasing physical activity” (P = .001 for trend), the investigators reported.

When using a competing-risk multivariable regression model, they found that higher levels of PA were associated with lower risk for dementia, compared with the inactive group.

Similar findings were obtained after censoring for stroke, and were consistent for all follow-up periods. In subgroup analysis, the association between PA level and dementia risk remained consistent, regardless of age, sex, and comorbidities.

Even a low amount of LPA (1-299 MET-min/wk) was linked to reduced risk for dementia versus total sedentary behavior (adjusted HR, 0.86; 95% CI, 0.74-0.99).

The investigators noted that some “controversy” remains regarding the possibility of reverse causation and, because their study was observational in nature, “it cannot be used to establish causal relationship.”

Nevertheless, the study had important strengths, including the large number of older adults with available data, the assessment of dose-response association between PA and dementia, and the sensitivity analyses they performed, the researchers added.
 

Piece of important evidence

Commenting on the findings, Takashi Tarumi, PhD, senior research investigator, National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan, said previous studies have suggested “an inverse association between physical activity and dementia risk, such that older adults performing a higher dose of exercise may have a greater benefit for reducing the dementia risk.”

Dr. Tarumi, an associate editor at the Journal of Alzheimer’s Disease, added the current study “significantly extends our knowledge by showing that dementia risk can also be reduced by light physical activities when they are performed for longer hours.”

This provides “another piece of important evidence” to support clinicians recommending regular physical activity for the prevention of dementia in later life, said Dr. Tarumi, who was not involved with the research.

Also commenting, Martin Underwood, MD, Warwick Medical School, Coventry, England, described the association between reduced physical inactivity and dementia as well established – and noted the current study “appears to confirm earlier observational data showing this relationship.” 

The current results have “still not been able to fully exclude the possibility of reverse causation,” said Dr. Underwood, who was also not associated with the study.

However, the finding that more physically active individuals are less likely to develop dementia “only becomes of real interest if we can show that increased physical activity prevents the onset, or slows the progression, of dementia,” he noted.

“To my knowledge this has not yet been established” in randomized clinical trials, Dr. Underwood added.

The study was supported by grants from the Patient-Centered Clinical Research Coordinating Center, funded by the Ministry of Health & Welfare, Republic of Korea; and by a research grant from Yonsei University. One coauthor reported serving as a speaker for Bayer, Bristol-Myers Squibb/Pfizer, Medtronic, and Daiichi-Sankyo, and receiving research funds from Medtronic and Abbott. No other author disclosures were reported. Dr. Tarumi and Dr. Underwood have disclosed no relevant financial relationships.

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

Older adults who participate in even light physical activity (LPA) may have a lower risk of developing dementia, new research suggests.

In a retrospective analysis of more than 62,000 individuals aged 65 or older without preexisting dementia, 6% developed dementia.

Compared with inactive individuals, “insufficiently active,” “active,” and “highly active” individuals all had a 10%, 20%, and 28% lower risk for dementia, respectively. And this association was consistent regardless of age, sex, other comorbidities, or after the researchers censored for stroke.

Even the lowest amount of LPA was associated with reduced dementia risk, investigators noted.

“In older adults, an increased physical activity level, including a low amount of LPA, was associated with a reduced risk of dementia,” Minjae Yoon, MD, division of cardiology, Severance Cardiovascular Hospital, Yonsei University, Seoul, South Korea, and colleagues wrote.

“Promotion of LPA might reduce the risk of dementia in older adults,” they added.

The findings were published online in JAMA Network Open.
 

Reverse causation?

Physical activity has been shown previously to be associated with reduced dementia risk. Current World Health Organization guidelines recommend that adults with normal cognition should engage in PA to reduce their risk for cognitive decline.

However, some studies have not yielded this result, “suggesting that previous findings showing a lower risk of dementia in physically active people could be attributed to reverse causation,” the investigators noted. Additionally, previous research regarding exercise intensity has been “inconsistent” concerning the role of LPA in reducing dementia risk.

Many older adults with frailty and comorbidity cannot perform intense or even moderate PA, therefore “these adults would have to gain the benefits of physical activity from LPA,” the researchers noted.

To clarify the potential association between PA and new-onset dementia, they focused specifically on the “dose-response association” between PA and dementia – especially LPA.

Between 2009 and 2012, the investigators enrolled 62,286 older individuals (60.4% women; mean age, 73.2 years) with available health checkup data from the National Health Insurance Service–Senior Database of Korea. All had no history of dementia.

Leisure-time PA was assessed with self-report questionnaires that used a 7-day recall method and included three questions regarding usual frequency (in days per week):

• Vigorous PA (VPA) for at least 20 minutes
• Moderate-intensity PA (MPA) for at least 30 minutes 
• LPA for at least 30 minutes

VPA was defined as “intense exercise that caused severe shortness of breath, MPA was defined as activity causing mild shortness of breath, and LPA was defined as “walking at a slow or leisurely pace.”

PA-related energy expenditure was also calculated in metabolic equivalent (MET) minutes per week by “summing the product of frequency, intensity, and duration,” the investigators noted.

Participants were stratified on the basis of their weekly total PA levels into the following groups:

• Inactive (no LPA beyond basic movements)
• Insufficiently active (less than the recommended target range of 1-499 MET-min/wk)
• Active (meeting the recommended target range of 500-999 MET-min/wk)
• Highly active (exceeding the recommended target range of at least 1,000 MET-min/wk)

Of all participants, 35% were categorized as inactive, 25% were insufficiently active, 24.4% were active, and 15.2% were highly active.
 

Controversy remains

During the total median follow-up of 42 months, 6% of participants had all-cause dementia. After the researchers excluded the first 2 years, incidence of dementia was 21.6 per 1000 person-years during follow-up. 

“The cumulative incidence of dementia was associated with a progressively decreasing trend with increasing physical activity” (P = .001 for trend), the investigators reported.

When using a competing-risk multivariable regression model, they found that higher levels of PA were associated with lower risk for dementia, compared with the inactive group.

Similar findings were obtained after censoring for stroke, and were consistent for all follow-up periods. In subgroup analysis, the association between PA level and dementia risk remained consistent, regardless of age, sex, and comorbidities.

Even a low amount of LPA (1-299 MET-min/wk) was linked to reduced risk for dementia versus total sedentary behavior (adjusted HR, 0.86; 95% CI, 0.74-0.99).

The investigators noted that some “controversy” remains regarding the possibility of reverse causation and, because their study was observational in nature, “it cannot be used to establish causal relationship.”

Nevertheless, the study had important strengths, including the large number of older adults with available data, the assessment of dose-response association between PA and dementia, and the sensitivity analyses they performed, the researchers added.
 

Piece of important evidence

Commenting on the findings, Takashi Tarumi, PhD, senior research investigator, National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan, said previous studies have suggested “an inverse association between physical activity and dementia risk, such that older adults performing a higher dose of exercise may have a greater benefit for reducing the dementia risk.”

Dr. Tarumi, an associate editor at the Journal of Alzheimer’s Disease, added the current study “significantly extends our knowledge by showing that dementia risk can also be reduced by light physical activities when they are performed for longer hours.”

This provides “another piece of important evidence” to support clinicians recommending regular physical activity for the prevention of dementia in later life, said Dr. Tarumi, who was not involved with the research.

Also commenting, Martin Underwood, MD, Warwick Medical School, Coventry, England, described the association between reduced physical inactivity and dementia as well established – and noted the current study “appears to confirm earlier observational data showing this relationship.” 

The current results have “still not been able to fully exclude the possibility of reverse causation,” said Dr. Underwood, who was also not associated with the study.

However, the finding that more physically active individuals are less likely to develop dementia “only becomes of real interest if we can show that increased physical activity prevents the onset, or slows the progression, of dementia,” he noted.

“To my knowledge this has not yet been established” in randomized clinical trials, Dr. Underwood added.

The study was supported by grants from the Patient-Centered Clinical Research Coordinating Center, funded by the Ministry of Health & Welfare, Republic of Korea; and by a research grant from Yonsei University. One coauthor reported serving as a speaker for Bayer, Bristol-Myers Squibb/Pfizer, Medtronic, and Daiichi-Sankyo, and receiving research funds from Medtronic and Abbott. No other author disclosures were reported. Dr. Tarumi and Dr. Underwood have disclosed no relevant financial relationships.

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

Older adults who participate in even light physical activity (LPA) may have a lower risk of developing dementia, new research suggests.

In a retrospective analysis of more than 62,000 individuals aged 65 or older without preexisting dementia, 6% developed dementia.

Compared with inactive individuals, “insufficiently active,” “active,” and “highly active” individuals all had a 10%, 20%, and 28% lower risk for dementia, respectively. And this association was consistent regardless of age, sex, other comorbidities, or after the researchers censored for stroke.

Even the lowest amount of LPA was associated with reduced dementia risk, investigators noted.

“In older adults, an increased physical activity level, including a low amount of LPA, was associated with a reduced risk of dementia,” Minjae Yoon, MD, division of cardiology, Severance Cardiovascular Hospital, Yonsei University, Seoul, South Korea, and colleagues wrote.

“Promotion of LPA might reduce the risk of dementia in older adults,” they added.

The findings were published online in JAMA Network Open.
 

Reverse causation?

Physical activity has been shown previously to be associated with reduced dementia risk. Current World Health Organization guidelines recommend that adults with normal cognition should engage in PA to reduce their risk for cognitive decline.

However, some studies have not yielded this result, “suggesting that previous findings showing a lower risk of dementia in physically active people could be attributed to reverse causation,” the investigators noted. Additionally, previous research regarding exercise intensity has been “inconsistent” concerning the role of LPA in reducing dementia risk.

Many older adults with frailty and comorbidity cannot perform intense or even moderate PA, therefore “these adults would have to gain the benefits of physical activity from LPA,” the researchers noted.

To clarify the potential association between PA and new-onset dementia, they focused specifically on the “dose-response association” between PA and dementia – especially LPA.

Between 2009 and 2012, the investigators enrolled 62,286 older individuals (60.4% women; mean age, 73.2 years) with available health checkup data from the National Health Insurance Service–Senior Database of Korea. All had no history of dementia.

Leisure-time PA was assessed with self-report questionnaires that used a 7-day recall method and included three questions regarding usual frequency (in days per week):

• Vigorous PA (VPA) for at least 20 minutes
• Moderate-intensity PA (MPA) for at least 30 minutes 
• LPA for at least 30 minutes

VPA was defined as “intense exercise that caused severe shortness of breath, MPA was defined as activity causing mild shortness of breath, and LPA was defined as “walking at a slow or leisurely pace.”

PA-related energy expenditure was also calculated in metabolic equivalent (MET) minutes per week by “summing the product of frequency, intensity, and duration,” the investigators noted.

Participants were stratified on the basis of their weekly total PA levels into the following groups:

• Inactive (no LPA beyond basic movements)
• Insufficiently active (less than the recommended target range of 1-499 MET-min/wk)
• Active (meeting the recommended target range of 500-999 MET-min/wk)
• Highly active (exceeding the recommended target range of at least 1,000 MET-min/wk)

Of all participants, 35% were categorized as inactive, 25% were insufficiently active, 24.4% were active, and 15.2% were highly active.
 

Controversy remains

During the total median follow-up of 42 months, 6% of participants had all-cause dementia. After the researchers excluded the first 2 years, incidence of dementia was 21.6 per 1000 person-years during follow-up. 

“The cumulative incidence of dementia was associated with a progressively decreasing trend with increasing physical activity” (P = .001 for trend), the investigators reported.

When using a competing-risk multivariable regression model, they found that higher levels of PA were associated with lower risk for dementia, compared with the inactive group.

Similar findings were obtained after censoring for stroke, and were consistent for all follow-up periods. In subgroup analysis, the association between PA level and dementia risk remained consistent, regardless of age, sex, and comorbidities.

Even a low amount of LPA (1-299 MET-min/wk) was linked to reduced risk for dementia versus total sedentary behavior (adjusted HR, 0.86; 95% CI, 0.74-0.99).

The investigators noted that some “controversy” remains regarding the possibility of reverse causation and, because their study was observational in nature, “it cannot be used to establish causal relationship.”

Nevertheless, the study had important strengths, including the large number of older adults with available data, the assessment of dose-response association between PA and dementia, and the sensitivity analyses they performed, the researchers added.
 

Piece of important evidence

Commenting on the findings, Takashi Tarumi, PhD, senior research investigator, National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan, said previous studies have suggested “an inverse association between physical activity and dementia risk, such that older adults performing a higher dose of exercise may have a greater benefit for reducing the dementia risk.”

Dr. Tarumi, an associate editor at the Journal of Alzheimer’s Disease, added the current study “significantly extends our knowledge by showing that dementia risk can also be reduced by light physical activities when they are performed for longer hours.”

This provides “another piece of important evidence” to support clinicians recommending regular physical activity for the prevention of dementia in later life, said Dr. Tarumi, who was not involved with the research.

Also commenting, Martin Underwood, MD, Warwick Medical School, Coventry, England, described the association between reduced physical inactivity and dementia as well established – and noted the current study “appears to confirm earlier observational data showing this relationship.” 

The current results have “still not been able to fully exclude the possibility of reverse causation,” said Dr. Underwood, who was also not associated with the study.

However, the finding that more physically active individuals are less likely to develop dementia “only becomes of real interest if we can show that increased physical activity prevents the onset, or slows the progression, of dementia,” he noted.

“To my knowledge this has not yet been established” in randomized clinical trials, Dr. Underwood added.

The study was supported by grants from the Patient-Centered Clinical Research Coordinating Center, funded by the Ministry of Health & Welfare, Republic of Korea; and by a research grant from Yonsei University. One coauthor reported serving as a speaker for Bayer, Bristol-Myers Squibb/Pfizer, Medtronic, and Daiichi-Sankyo, and receiving research funds from Medtronic and Abbott. No other author disclosures were reported. Dr. Tarumi and Dr. Underwood have disclosed no relevant financial relationships.

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

Fish oil supplementation does not help prevent depression or boost mood, new research suggests.

The VITAL-DEP study included more than 18,000 participants. Among adults aged 50 years or older free of clinically relevant depressive symptoms at baseline, long-term use of marine omega-3 fatty acid (omega-3) supplements did not reduce risk for depression or clinically relevant depressive symptoms — or make a difference in the quality of mood.

In fact, there was a small increase found in risk for depression or depressive symptoms with omega-3 supplements.

“While a small increase in risk of depression was inside the statistical margin of significance, there was no harmful or beneficial effect of omega-3 on the overall course of mood during the roughly 5 to 7 years of follow-up,” lead author Olivia I. Okereke, MD, Massachusetts General Hospital and Harvard Medical School, Boston, told Medscape Medical News.

“The takeaway from our study is that there is no net benefit of long-term use of daily omega-3 fish oil supplements for preventing depression or boosting mood,” Okereke said.

The findings were published online Dec. 21 in JAMA.
 

Assessing general population risk

For many years, experts have recommended omega-3 supplements for reduction in depression recurrence in some high-risk patients, Okereke noted.

“However, there are no guidelines related to the use of omega-3 supplements for preventing depression in the general population. Therefore, we undertook this study to provide clarity in the issue,” she said.

The VITAL-DEP study enrolled 18,353 older adults (mean age, 67.5 years; 49% women). Of these, 16,657 were at risk for incident depression, defined as having no previous history of depression; and 1696 were at risk for recurrent depression, defined as having a history of depression but not having undergone treatment for depression within the past 2 years.

Roughly half the participants were randomly assigned to receive marine omega-3 fatty acids (1 g/d of fish oil, including 465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA]) and the other half to matching placebo for an average of 5.3 years.

“Because of the large sample size and long follow-up, we were able to test the effects of daily omega-3 fish oil supplements on universal prevention of depression in the adult population,” Okereke said.
 

No significant benefit

Results showed risk for depression or clinically relevant depressive symptoms (total of incident and recurrent cases) was not significantly different between the omega-3 group and the placebo group.

The omega-3 group had 651 depression or clinically relevant depressive symptom events (13.9 per 1000 person-years), and the placebo group had 583 depression or clinically relevant depressive symptom events (12.3 per 1000 person-years). The hazard ratio was 1.13 (95% CI, 1.01 - 1.26; P = .03).

There were also no significant between-group differences in longitudinal mood scores. The mean difference in change in 8-item Patient Health Questionnaire (PHQ-8) score was 0.03 points (95% CI, −0.01 to 0.07; P = .19).

“Patients, physicians, and other clinicians should understand that there are still many reasons for some people, under the guidance of their health care providers, to take omega-3 fish oil supplements,” Okereke noted.

“These supplements increasingly have been found to have benefits for cardiac disease prevention and treatment of inflammatory conditions, in addition to being used for management of existing depressive disorders in some high-risk patients,” she said.

“However, the results of our study indicate there is no reason for adults in the general population to be taking daily omega-3 fish oil supplements solely for the purpose of preventing depression or for maintaining a positive mood,” she added.

Okereke noted, however, that the VITAL-DEP study used 1 g/day of omega-3 fatty acids and there may be a greater benefit from taking higher doses, such as 4 g/day.
 

Cautionary notes

Commenting on the study for Medscape Medical News, Kuan-Pin Su, MD, PhD, chief of the Department of General Psychiatry, China Medical University, Taichung, Taiwan, highlighted some of the limitations cited by the investigators.

First, depression or depressive symptoms were defined using self-rating scales, which are “convenient to screen for depressive disorders, but a high score obtained on a self-rating scale does not necessarily indicate the presence of depressive psychopathology,” said Su, who was not involved with the research.

He also noted that use of 465 mg of EPA and 375 mg of DHA in VITAL-DEP “might be too low” to have an impact.

Finally, Su said it is “very important to also address the potential for type I error, which makes the secondary and subgroup analyses less reliable.”

VITAL-DEP was supported by a grant from the National Institute of Mental Health. Pronova BioPharma donated the fish oil and matching placebo. Okereke reported receiving royalties from Springer Publishing. Su is a founding committee member of the International Society for Nutritional Psychiatry Research, the board director of the International Society for the Study of Fatty Acids, and an associate editor of the journal Brain, Behavior, and Immunity.

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

Fish oil supplementation does not help prevent depression or boost mood, new research suggests.

The VITAL-DEP study included more than 18,000 participants. Among adults aged 50 years or older free of clinically relevant depressive symptoms at baseline, long-term use of marine omega-3 fatty acid (omega-3) supplements did not reduce risk for depression or clinically relevant depressive symptoms — or make a difference in the quality of mood.

In fact, there was a small increase found in risk for depression or depressive symptoms with omega-3 supplements.

“While a small increase in risk of depression was inside the statistical margin of significance, there was no harmful or beneficial effect of omega-3 on the overall course of mood during the roughly 5 to 7 years of follow-up,” lead author Olivia I. Okereke, MD, Massachusetts General Hospital and Harvard Medical School, Boston, told Medscape Medical News.

“The takeaway from our study is that there is no net benefit of long-term use of daily omega-3 fish oil supplements for preventing depression or boosting mood,” Okereke said.

The findings were published online Dec. 21 in JAMA.
 

Assessing general population risk

For many years, experts have recommended omega-3 supplements for reduction in depression recurrence in some high-risk patients, Okereke noted.

“However, there are no guidelines related to the use of omega-3 supplements for preventing depression in the general population. Therefore, we undertook this study to provide clarity in the issue,” she said.

The VITAL-DEP study enrolled 18,353 older adults (mean age, 67.5 years; 49% women). Of these, 16,657 were at risk for incident depression, defined as having no previous history of depression; and 1696 were at risk for recurrent depression, defined as having a history of depression but not having undergone treatment for depression within the past 2 years.

Roughly half the participants were randomly assigned to receive marine omega-3 fatty acids (1 g/d of fish oil, including 465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA]) and the other half to matching placebo for an average of 5.3 years.

“Because of the large sample size and long follow-up, we were able to test the effects of daily omega-3 fish oil supplements on universal prevention of depression in the adult population,” Okereke said.
 

No significant benefit

Results showed risk for depression or clinically relevant depressive symptoms (total of incident and recurrent cases) was not significantly different between the omega-3 group and the placebo group.

The omega-3 group had 651 depression or clinically relevant depressive symptom events (13.9 per 1000 person-years), and the placebo group had 583 depression or clinically relevant depressive symptom events (12.3 per 1000 person-years). The hazard ratio was 1.13 (95% CI, 1.01 - 1.26; P = .03).

There were also no significant between-group differences in longitudinal mood scores. The mean difference in change in 8-item Patient Health Questionnaire (PHQ-8) score was 0.03 points (95% CI, −0.01 to 0.07; P = .19).

“Patients, physicians, and other clinicians should understand that there are still many reasons for some people, under the guidance of their health care providers, to take omega-3 fish oil supplements,” Okereke noted.

“These supplements increasingly have been found to have benefits for cardiac disease prevention and treatment of inflammatory conditions, in addition to being used for management of existing depressive disorders in some high-risk patients,” she said.

“However, the results of our study indicate there is no reason for adults in the general population to be taking daily omega-3 fish oil supplements solely for the purpose of preventing depression or for maintaining a positive mood,” she added.

Okereke noted, however, that the VITAL-DEP study used 1 g/day of omega-3 fatty acids and there may be a greater benefit from taking higher doses, such as 4 g/day.
 

Cautionary notes

Commenting on the study for Medscape Medical News, Kuan-Pin Su, MD, PhD, chief of the Department of General Psychiatry, China Medical University, Taichung, Taiwan, highlighted some of the limitations cited by the investigators.

First, depression or depressive symptoms were defined using self-rating scales, which are “convenient to screen for depressive disorders, but a high score obtained on a self-rating scale does not necessarily indicate the presence of depressive psychopathology,” said Su, who was not involved with the research.

He also noted that use of 465 mg of EPA and 375 mg of DHA in VITAL-DEP “might be too low” to have an impact.

Finally, Su said it is “very important to also address the potential for type I error, which makes the secondary and subgroup analyses less reliable.”

VITAL-DEP was supported by a grant from the National Institute of Mental Health. Pronova BioPharma donated the fish oil and matching placebo. Okereke reported receiving royalties from Springer Publishing. Su is a founding committee member of the International Society for Nutritional Psychiatry Research, the board director of the International Society for the Study of Fatty Acids, and an associate editor of the journal Brain, Behavior, and Immunity.

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

Fish oil supplementation does not help prevent depression or boost mood, new research suggests.

The VITAL-DEP study included more than 18,000 participants. Among adults aged 50 years or older free of clinically relevant depressive symptoms at baseline, long-term use of marine omega-3 fatty acid (omega-3) supplements did not reduce risk for depression or clinically relevant depressive symptoms — or make a difference in the quality of mood.

In fact, there was a small increase found in risk for depression or depressive symptoms with omega-3 supplements.

“While a small increase in risk of depression was inside the statistical margin of significance, there was no harmful or beneficial effect of omega-3 on the overall course of mood during the roughly 5 to 7 years of follow-up,” lead author Olivia I. Okereke, MD, Massachusetts General Hospital and Harvard Medical School, Boston, told Medscape Medical News.

“The takeaway from our study is that there is no net benefit of long-term use of daily omega-3 fish oil supplements for preventing depression or boosting mood,” Okereke said.

The findings were published online Dec. 21 in JAMA.
 

Assessing general population risk

For many years, experts have recommended omega-3 supplements for reduction in depression recurrence in some high-risk patients, Okereke noted.

“However, there are no guidelines related to the use of omega-3 supplements for preventing depression in the general population. Therefore, we undertook this study to provide clarity in the issue,” she said.

The VITAL-DEP study enrolled 18,353 older adults (mean age, 67.5 years; 49% women). Of these, 16,657 were at risk for incident depression, defined as having no previous history of depression; and 1696 were at risk for recurrent depression, defined as having a history of depression but not having undergone treatment for depression within the past 2 years.

Roughly half the participants were randomly assigned to receive marine omega-3 fatty acids (1 g/d of fish oil, including 465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA]) and the other half to matching placebo for an average of 5.3 years.

“Because of the large sample size and long follow-up, we were able to test the effects of daily omega-3 fish oil supplements on universal prevention of depression in the adult population,” Okereke said.
 

No significant benefit

Results showed risk for depression or clinically relevant depressive symptoms (total of incident and recurrent cases) was not significantly different between the omega-3 group and the placebo group.

The omega-3 group had 651 depression or clinically relevant depressive symptom events (13.9 per 1000 person-years), and the placebo group had 583 depression or clinically relevant depressive symptom events (12.3 per 1000 person-years). The hazard ratio was 1.13 (95% CI, 1.01 - 1.26; P = .03).

There were also no significant between-group differences in longitudinal mood scores. The mean difference in change in 8-item Patient Health Questionnaire (PHQ-8) score was 0.03 points (95% CI, −0.01 to 0.07; P = .19).

“Patients, physicians, and other clinicians should understand that there are still many reasons for some people, under the guidance of their health care providers, to take omega-3 fish oil supplements,” Okereke noted.

“These supplements increasingly have been found to have benefits for cardiac disease prevention and treatment of inflammatory conditions, in addition to being used for management of existing depressive disorders in some high-risk patients,” she said.

“However, the results of our study indicate there is no reason for adults in the general population to be taking daily omega-3 fish oil supplements solely for the purpose of preventing depression or for maintaining a positive mood,” she added.

Okereke noted, however, that the VITAL-DEP study used 1 g/day of omega-3 fatty acids and there may be a greater benefit from taking higher doses, such as 4 g/day.
 

Cautionary notes

Commenting on the study for Medscape Medical News, Kuan-Pin Su, MD, PhD, chief of the Department of General Psychiatry, China Medical University, Taichung, Taiwan, highlighted some of the limitations cited by the investigators.

First, depression or depressive symptoms were defined using self-rating scales, which are “convenient to screen for depressive disorders, but a high score obtained on a self-rating scale does not necessarily indicate the presence of depressive psychopathology,” said Su, who was not involved with the research.

He also noted that use of 465 mg of EPA and 375 mg of DHA in VITAL-DEP “might be too low” to have an impact.

Finally, Su said it is “very important to also address the potential for type I error, which makes the secondary and subgroup analyses less reliable.”

VITAL-DEP was supported by a grant from the National Institute of Mental Health. Pronova BioPharma donated the fish oil and matching placebo. Okereke reported receiving royalties from Springer Publishing. Su is a founding committee member of the International Society for Nutritional Psychiatry Research, the board director of the International Society for the Study of Fatty Acids, and an associate editor of the journal Brain, Behavior, and Immunity.

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