The Hospitalist

A U.S. Food and Drug Administration (FDA) advisory committee on Oct. 15 voted 19-0 to authorize second doses of the Johnson & Johnson COVID-19 vaccine in an effort to boost immunity. It was the second vote in as many days to back a change to a COVID vaccine timeline.
 

Johnson & Johnson

In its vote, the committee said that boosters could be offered to people as young as age 18. However, it is not clear that everyone who got a Johnson & Johnson vaccine needs to get a second dose. The same panel voted Oct. 14 to recommend booster shots for the Moderna vaccine, but for a narrower group of people.

It will be up to a Centers for Disease Control and Prevention (CDC) panel to make more specific recommendations for who might need another shot. The CDC’s Advisory Committee on Immunization Practices is scheduled to meet next Oct. 21 to discuss issues related to COVID-19 vaccines.

Studies of the effectiveness of the Johnson & Johnson vaccine in the real world show that its protection — while good — has not been as strong as that of the mRNA vaccines made by Pfizer and Moderna, which are given as part of a two-dose series.

In the end, the members of the FDA’s Vaccines and Related Biological Products Advisory Committee said they felt that the company hadn’t made a case for calling their second shot a booster, but had shown enough data to suggest that everyone over the age of 18 should consider getting two shots of the Johnson & Johnson vaccine as a matter of course.

This is an especially important issue for adults over the age of 50. A recent study in the New England Journal of Medicine found that older adults who got the Johnson & Johnson vaccine were less protected against infection and hospitalization than those who got mRNA vaccines.
 

Limited data

The company presented data from six studies to the FDA panel in support of a second dose that were limited. The only study looking at second doses after 6 months included just 17 people.

These studies did show that a second dose substantially increased levels of neutralizing antibodies, which are the body’s first line of protection against COVID-19 infection.

But the company turned this data over to the FDA so recently that agency scientists repeatedly stressed during the meeting that they did not have ample time to follow their normal process of independently verifying the data and following up with their own analysis of the study results.

Peter Marks, MD, director of the FDA’s Center for Biologics Evaluation and Research, said it would have taken months to complete that rigorous level of review.

Instead, in the interest of urgency, the FDA said it had tried to bring some clarity to the tangle of study results presented that included three dosing schedules and different measures of effectiveness.

“Here’s how this strikes me,” said committee member Paul Offit, MD, a professor of pediatrics and infectious disease at Children’s Hospital of Philadelphia. “I think this vaccine was always a two-dose vaccine. I think it’s better as a two-dose vaccine. I think it would be hard to recommend this as a single-dose vaccine at this point.”

“As far as I’m concerned, it was always going to be necessary for J&J recipients to get a second shot,” said James Hildreth, MD, PhD, president and CEO of Meharry Medical College in Nashville.

Archana Chatterjee, MD, PhD, dean of the Chicago Medical School at Rosalind Franklin University of Medicine and Science, said she had changed her vote during the course of the meeting.

She said that, based on the very limited safety and effectiveness data presented to the committee, she was prepared to vote against the idea of offering second doses of Johnson & Johnson shots.

But after considering the 15 million people who have been vaccinated with a single dose and studies that have suggested that close to 5 million older adults may still be at risk for hospitalization because they’ve just had one shot, “This is still a public health imperative,” she said.

“I’m in agreement with most of my colleagues that this second dose, booster, whatever you want to call it, is necessary in these individuals to boost up their immunity back into the 90-plus percentile range,” Dr. Chatterjee said.

Who needs a second dose?

On Oct. 14, the committee heard an update on data from Israel, which saw a wave of severe breakthrough infections during the Delta wave.

COVID-19 cases are falling rapidly there after the country widely deployed booster doses of the Pfizer vaccine.

The FDA’s Dr. Marks said Oct. 15 that the agency was leaning toward creating greater flexibility in the emergency use authorizations (EUAs) for the Johnson & Johnson and Moderna vaccines so that boosters could be more widely deployed in the United States too.

The FDA panel on Oct. 14 voted to authorize a 50-milligram dose of Moderna’s vaccine — half the dose used in the primary series of shots — to boost immunity at least 6 months after the second dose.

Those who might need a Moderna booster are the same groups who’ve gotten a green light for third Pfizer doses, including people over 65, adults at higher risk for severe COVID-19, and those who are at higher risk because of where they live or work.

The FDA asked the committee on Oct. 15 to discuss whether boosters should be offered to younger adults, even those without underlying health conditions.

“We’re concerned that what was seen in Israel could be seen here,” Dr. Marks said. “We don’t want to have a wave of severe COVID-19 before we deploy boosters.”
 

Trying to avoid confusion

Some members of the committee cautioned Dr. Marks to be careful when expanding the EUAs, because it could confuse people.

“When we say immunity is waning, what are the implications of that?” said Michael Kurilla, MD, PhD, director of the division of clinical innovation at the National Institutes of Health.

Overall, data show that all the vaccines currently being used in the United States — including Johnson & Johnson — remain highly effective for preventing severe outcomes from COVID-19, like hospitalization and death.

Booster doses could prevent more people from even getting mild or moderate symptoms from “breakthrough” COVID-19 cases, which began to rise during the recent Delta surge. The additional doses are also expected to prevent severe outcomes like hospitalization in older adults and those with underlying health conditions.

“I think we need to be clear when we say waning immunity and we need to do something about that, I think we need to be clear what we’re really targeting [with boosters] in terms of clinical impact we expect to have,” Dr. Kurilla said.

Others pointed out that preventing even mild-to-moderate infections was a worthy goal, especially considering the implications of long-haul COVID-19.

“COVID does have tremendous downstream effects, even in those who are not hospitalized. Whenever we can prevent significant morbidity in a population, there are advantages to that,” said Steven Pergam, MD, MPH, medical director of infection prevention at the Seattle Cancer Care Alliance.

“I’d really be in the camp that would be moving towards a younger age range for allowing boosters,” he said.
 

This article was updated on 10/18/21. A version of this article first appeared on Medscape.com.

A U.S. Food and Drug Administration (FDA) advisory committee on Oct. 15 voted 19-0 to authorize second doses of the Johnson & Johnson COVID-19 vaccine in an effort to boost immunity. It was the second vote in as many days to back a change to a COVID vaccine timeline.
 

Johnson & Johnson

In its vote, the committee said that boosters could be offered to people as young as age 18. However, it is not clear that everyone who got a Johnson & Johnson vaccine needs to get a second dose. The same panel voted Oct. 14 to recommend booster shots for the Moderna vaccine, but for a narrower group of people.

It will be up to a Centers for Disease Control and Prevention (CDC) panel to make more specific recommendations for who might need another shot. The CDC’s Advisory Committee on Immunization Practices is scheduled to meet next Oct. 21 to discuss issues related to COVID-19 vaccines.

Studies of the effectiveness of the Johnson & Johnson vaccine in the real world show that its protection — while good — has not been as strong as that of the mRNA vaccines made by Pfizer and Moderna, which are given as part of a two-dose series.

In the end, the members of the FDA’s Vaccines and Related Biological Products Advisory Committee said they felt that the company hadn’t made a case for calling their second shot a booster, but had shown enough data to suggest that everyone over the age of 18 should consider getting two shots of the Johnson & Johnson vaccine as a matter of course.

This is an especially important issue for adults over the age of 50. A recent study in the New England Journal of Medicine found that older adults who got the Johnson & Johnson vaccine were less protected against infection and hospitalization than those who got mRNA vaccines.
 

Limited data

The company presented data from six studies to the FDA panel in support of a second dose that were limited. The only study looking at second doses after 6 months included just 17 people.

These studies did show that a second dose substantially increased levels of neutralizing antibodies, which are the body’s first line of protection against COVID-19 infection.

But the company turned this data over to the FDA so recently that agency scientists repeatedly stressed during the meeting that they did not have ample time to follow their normal process of independently verifying the data and following up with their own analysis of the study results.

Peter Marks, MD, director of the FDA’s Center for Biologics Evaluation and Research, said it would have taken months to complete that rigorous level of review.

Instead, in the interest of urgency, the FDA said it had tried to bring some clarity to the tangle of study results presented that included three dosing schedules and different measures of effectiveness.

“Here’s how this strikes me,” said committee member Paul Offit, MD, a professor of pediatrics and infectious disease at Children’s Hospital of Philadelphia. “I think this vaccine was always a two-dose vaccine. I think it’s better as a two-dose vaccine. I think it would be hard to recommend this as a single-dose vaccine at this point.”

“As far as I’m concerned, it was always going to be necessary for J&J recipients to get a second shot,” said James Hildreth, MD, PhD, president and CEO of Meharry Medical College in Nashville.

Archana Chatterjee, MD, PhD, dean of the Chicago Medical School at Rosalind Franklin University of Medicine and Science, said she had changed her vote during the course of the meeting.

She said that, based on the very limited safety and effectiveness data presented to the committee, she was prepared to vote against the idea of offering second doses of Johnson & Johnson shots.

But after considering the 15 million people who have been vaccinated with a single dose and studies that have suggested that close to 5 million older adults may still be at risk for hospitalization because they’ve just had one shot, “This is still a public health imperative,” she said.

“I’m in agreement with most of my colleagues that this second dose, booster, whatever you want to call it, is necessary in these individuals to boost up their immunity back into the 90-plus percentile range,” Dr. Chatterjee said.

Who needs a second dose?

On Oct. 14, the committee heard an update on data from Israel, which saw a wave of severe breakthrough infections during the Delta wave.

COVID-19 cases are falling rapidly there after the country widely deployed booster doses of the Pfizer vaccine.

The FDA’s Dr. Marks said Oct. 15 that the agency was leaning toward creating greater flexibility in the emergency use authorizations (EUAs) for the Johnson & Johnson and Moderna vaccines so that boosters could be more widely deployed in the United States too.

The FDA panel on Oct. 14 voted to authorize a 50-milligram dose of Moderna’s vaccine — half the dose used in the primary series of shots — to boost immunity at least 6 months after the second dose.

Those who might need a Moderna booster are the same groups who’ve gotten a green light for third Pfizer doses, including people over 65, adults at higher risk for severe COVID-19, and those who are at higher risk because of where they live or work.

The FDA asked the committee on Oct. 15 to discuss whether boosters should be offered to younger adults, even those without underlying health conditions.

“We’re concerned that what was seen in Israel could be seen here,” Dr. Marks said. “We don’t want to have a wave of severe COVID-19 before we deploy boosters.”
 

Trying to avoid confusion

Some members of the committee cautioned Dr. Marks to be careful when expanding the EUAs, because it could confuse people.

“When we say immunity is waning, what are the implications of that?” said Michael Kurilla, MD, PhD, director of the division of clinical innovation at the National Institutes of Health.

Overall, data show that all the vaccines currently being used in the United States — including Johnson & Johnson — remain highly effective for preventing severe outcomes from COVID-19, like hospitalization and death.

Booster doses could prevent more people from even getting mild or moderate symptoms from “breakthrough” COVID-19 cases, which began to rise during the recent Delta surge. The additional doses are also expected to prevent severe outcomes like hospitalization in older adults and those with underlying health conditions.

“I think we need to be clear when we say waning immunity and we need to do something about that, I think we need to be clear what we’re really targeting [with boosters] in terms of clinical impact we expect to have,” Dr. Kurilla said.

Others pointed out that preventing even mild-to-moderate infections was a worthy goal, especially considering the implications of long-haul COVID-19.

“COVID does have tremendous downstream effects, even in those who are not hospitalized. Whenever we can prevent significant morbidity in a population, there are advantages to that,” said Steven Pergam, MD, MPH, medical director of infection prevention at the Seattle Cancer Care Alliance.

“I’d really be in the camp that would be moving towards a younger age range for allowing boosters,” he said.
 

This article was updated on 10/18/21. A version of this article first appeared on Medscape.com.

A U.S. Food and Drug Administration (FDA) advisory committee on Oct. 15 voted 19-0 to authorize second doses of the Johnson & Johnson COVID-19 vaccine in an effort to boost immunity. It was the second vote in as many days to back a change to a COVID vaccine timeline.
 

Johnson & Johnson

In its vote, the committee said that boosters could be offered to people as young as age 18. However, it is not clear that everyone who got a Johnson & Johnson vaccine needs to get a second dose. The same panel voted Oct. 14 to recommend booster shots for the Moderna vaccine, but for a narrower group of people.

It will be up to a Centers for Disease Control and Prevention (CDC) panel to make more specific recommendations for who might need another shot. The CDC’s Advisory Committee on Immunization Practices is scheduled to meet next Oct. 21 to discuss issues related to COVID-19 vaccines.

Studies of the effectiveness of the Johnson & Johnson vaccine in the real world show that its protection — while good — has not been as strong as that of the mRNA vaccines made by Pfizer and Moderna, which are given as part of a two-dose series.

In the end, the members of the FDA’s Vaccines and Related Biological Products Advisory Committee said they felt that the company hadn’t made a case for calling their second shot a booster, but had shown enough data to suggest that everyone over the age of 18 should consider getting two shots of the Johnson & Johnson vaccine as a matter of course.

This is an especially important issue for adults over the age of 50. A recent study in the New England Journal of Medicine found that older adults who got the Johnson & Johnson vaccine were less protected against infection and hospitalization than those who got mRNA vaccines.
 

Limited data

The company presented data from six studies to the FDA panel in support of a second dose that were limited. The only study looking at second doses after 6 months included just 17 people.

These studies did show that a second dose substantially increased levels of neutralizing antibodies, which are the body’s first line of protection against COVID-19 infection.

But the company turned this data over to the FDA so recently that agency scientists repeatedly stressed during the meeting that they did not have ample time to follow their normal process of independently verifying the data and following up with their own analysis of the study results.

Peter Marks, MD, director of the FDA’s Center for Biologics Evaluation and Research, said it would have taken months to complete that rigorous level of review.

Instead, in the interest of urgency, the FDA said it had tried to bring some clarity to the tangle of study results presented that included three dosing schedules and different measures of effectiveness.

“Here’s how this strikes me,” said committee member Paul Offit, MD, a professor of pediatrics and infectious disease at Children’s Hospital of Philadelphia. “I think this vaccine was always a two-dose vaccine. I think it’s better as a two-dose vaccine. I think it would be hard to recommend this as a single-dose vaccine at this point.”

“As far as I’m concerned, it was always going to be necessary for J&J recipients to get a second shot,” said James Hildreth, MD, PhD, president and CEO of Meharry Medical College in Nashville.

Archana Chatterjee, MD, PhD, dean of the Chicago Medical School at Rosalind Franklin University of Medicine and Science, said she had changed her vote during the course of the meeting.

She said that, based on the very limited safety and effectiveness data presented to the committee, she was prepared to vote against the idea of offering second doses of Johnson & Johnson shots.

But after considering the 15 million people who have been vaccinated with a single dose and studies that have suggested that close to 5 million older adults may still be at risk for hospitalization because they’ve just had one shot, “This is still a public health imperative,” she said.

“I’m in agreement with most of my colleagues that this second dose, booster, whatever you want to call it, is necessary in these individuals to boost up their immunity back into the 90-plus percentile range,” Dr. Chatterjee said.

Who needs a second dose?

On Oct. 14, the committee heard an update on data from Israel, which saw a wave of severe breakthrough infections during the Delta wave.

COVID-19 cases are falling rapidly there after the country widely deployed booster doses of the Pfizer vaccine.

The FDA’s Dr. Marks said Oct. 15 that the agency was leaning toward creating greater flexibility in the emergency use authorizations (EUAs) for the Johnson & Johnson and Moderna vaccines so that boosters could be more widely deployed in the United States too.

The FDA panel on Oct. 14 voted to authorize a 50-milligram dose of Moderna’s vaccine — half the dose used in the primary series of shots — to boost immunity at least 6 months after the second dose.

Those who might need a Moderna booster are the same groups who’ve gotten a green light for third Pfizer doses, including people over 65, adults at higher risk for severe COVID-19, and those who are at higher risk because of where they live or work.

The FDA asked the committee on Oct. 15 to discuss whether boosters should be offered to younger adults, even those without underlying health conditions.

“We’re concerned that what was seen in Israel could be seen here,” Dr. Marks said. “We don’t want to have a wave of severe COVID-19 before we deploy boosters.”
 

Trying to avoid confusion

Some members of the committee cautioned Dr. Marks to be careful when expanding the EUAs, because it could confuse people.

“When we say immunity is waning, what are the implications of that?” said Michael Kurilla, MD, PhD, director of the division of clinical innovation at the National Institutes of Health.

Overall, data show that all the vaccines currently being used in the United States — including Johnson & Johnson — remain highly effective for preventing severe outcomes from COVID-19, like hospitalization and death.

Booster doses could prevent more people from even getting mild or moderate symptoms from “breakthrough” COVID-19 cases, which began to rise during the recent Delta surge. The additional doses are also expected to prevent severe outcomes like hospitalization in older adults and those with underlying health conditions.

“I think we need to be clear when we say waning immunity and we need to do something about that, I think we need to be clear what we’re really targeting [with boosters] in terms of clinical impact we expect to have,” Dr. Kurilla said.

Others pointed out that preventing even mild-to-moderate infections was a worthy goal, especially considering the implications of long-haul COVID-19.

“COVID does have tremendous downstream effects, even in those who are not hospitalized. Whenever we can prevent significant morbidity in a population, there are advantages to that,” said Steven Pergam, MD, MPH, medical director of infection prevention at the Seattle Cancer Care Alliance.

“I’d really be in the camp that would be moving towards a younger age range for allowing boosters,” he said.
 

This article was updated on 10/18/21. A version of this article first appeared on Medscape.com.

Individuals with substance use disorders (SUDs) have a twofold increased risk for COVID-related hospitalization and death even after vaccination, new research shows.

Investigators analyzed data on over 10,000 vaccinated individuals with various SUDs and almost 600,000 vaccinated individuals without an SUD. They found about twice as many individuals with an SUD had a breakthrough COVID-19 infection as their counterparts without an SUD, at 7% versus 3.6%, respectively.

Worrisome phase

SUDs are “often associated with multiple comorbid conditions that are known risk factors for severe outcome of COVID-19 infection,” the investigators note.

Research published early in the pandemic showed patients with SUDs, including alcohol, cannabis, cocaine, opioid, and tobacco use disorders, were “at increased risk for COVID-19 infection and associated severe outcomes, especially among African Americans,” they add.

To date, no research has focused on the potential risk for COVID in individuals with SUDs following vaccination. In addition, although vaccines are “very effective,” breakthrough infections have been recorded, “highlighting the need to identify populations that might be most vulnerable, as we have entered a worrisome new phase of the pandemic,” the authors write.

For the study, researchers used a data analytics platform that included de-identified information from 63 health care organizations across the U.S. to estimate the risk for breakthrough COVID-19 among vaccinated patients with SUD (n = 30,183; mean age 59.3, 51.4% male, 63.2% White, 26.2% African American), compared with vaccinated individuals without SUDs (n = 549,189; mean age 54.7, 43.2% male, 63.4% White, 14.3% African American) between December 2020 and August 2021.

They also conducted statistical analyses to examine how the rate of breakthrough cases changed over that timeframe.

The cohorts were matched by demographics, adverse socioeconomic determinants of health, lifetime medical and psychiatric comorbidities, and vaccine type.

Among vaccinated SUD patients, three-quarters received the Pfizer-BioNTech vaccine, one-fifth received the Moderna vaccine, and 3.3% received the Johnson & Johnson vaccine.

In contrast, among the vaccinated non-SUD population, almost all (88.2%) received the Pfizer-BioNTech vaccine, 10% received Moderna, and only 1.2% received the Johnson & Johnson vaccine.
 

Underlying drivers

The prevalence of adverse socioeconomic determinants of health was higher in vaccinated individuals with SUDs compared to those without (7.9% vs. 1.2%, respectively). Moreover, vaccinated patients with SUD had a higher lifetime prevalence of all comorbidities as well as transplants (all Ps < .001).

The risk for breakthrough infection was significantly higher in vaccinated individuals with SUDs compared to those without (all Ps < .001).

After controlling for adverse socioeconomic determinants of health and comorbid medical conditions, the risk for breakthrough infection “no longer differed in SUD compared to non-SUD cohorts, except for patients with cannabis use disorder, who remained at significantly increased risk,” the authors report.

In both populations, the rate of breakthrough infections “steadily increased” between January and August 2021.

The risk for hospitalization and death was higher among those with breakthrough infections, compared with those in the matched cohort without breakthrough infections, but the risk for hospitalization and death were higher in the SUD compared with the non-SUD population.

In the SUD patients, after matching an array of demographic, socioeconomic, and medical factors as well as vaccine type, only cannabis use disorder was associated with a higher risk in African Americans, compared with matched Caucasians (HR = 1.63; 95% confidence interval, 1.06-2.51).

“When we adjusted the data to account for comorbidities and for socioeconomic background, we no longer saw a difference between those with substance use disorders and those without – the only exception to this was for people with cannabis use disorder,” said Dr. Volkow.

“This suggests that these factors, which are often associated with substance use disorders, are likely the underlying drivers for the increased risk,” she continued.

She added that it is important for other studies to investigate why individuals with cannabis use disorder had a higher risk for breakthrough infections.
 

Good news, bad news

Commenting for this news organization, Anna Lembke, MD, professor of psychiatry and behavioral sciences, Stanford (Calif.) University, said the study is important and contains good news and bad news.

The good news, she said, “is that, after controlling for comorbidities and socioeconomic variables, patients with SUDs are no more likely than patients without SUDs to get COVID after getting vaccinated, and the bad news is that if vaccinated patients with SUDs do get COVID, they’re more likely to end up hospitalized or die from it,” said Dr. Lembke, who was not involved with the study.

“The take-home message for clinicians is that if your vaccinated patient with an SUD gets COVID, be on the alert for a more complicated medical outcome and a higher risk of death,” warned Dr. Lembke.

This study was supported by the U.S. National Institute on Drug Abuse, the U.S. National Institute of Aging, and the Clinical and Translational Science Collaborative (CTSC) of Cleveland. No disclosures were listed on the original study. Dr. Lembke has disclosed no relevant financial relationships.

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

Individuals with substance use disorders (SUDs) have a twofold increased risk for COVID-related hospitalization and death even after vaccination, new research shows.

Investigators analyzed data on over 10,000 vaccinated individuals with various SUDs and almost 600,000 vaccinated individuals without an SUD. They found about twice as many individuals with an SUD had a breakthrough COVID-19 infection as their counterparts without an SUD, at 7% versus 3.6%, respectively.

Worrisome phase

SUDs are “often associated with multiple comorbid conditions that are known risk factors for severe outcome of COVID-19 infection,” the investigators note.

Research published early in the pandemic showed patients with SUDs, including alcohol, cannabis, cocaine, opioid, and tobacco use disorders, were “at increased risk for COVID-19 infection and associated severe outcomes, especially among African Americans,” they add.

To date, no research has focused on the potential risk for COVID in individuals with SUDs following vaccination. In addition, although vaccines are “very effective,” breakthrough infections have been recorded, “highlighting the need to identify populations that might be most vulnerable, as we have entered a worrisome new phase of the pandemic,” the authors write.

For the study, researchers used a data analytics platform that included de-identified information from 63 health care organizations across the U.S. to estimate the risk for breakthrough COVID-19 among vaccinated patients with SUD (n = 30,183; mean age 59.3, 51.4% male, 63.2% White, 26.2% African American), compared with vaccinated individuals without SUDs (n = 549,189; mean age 54.7, 43.2% male, 63.4% White, 14.3% African American) between December 2020 and August 2021.

They also conducted statistical analyses to examine how the rate of breakthrough cases changed over that timeframe.

The cohorts were matched by demographics, adverse socioeconomic determinants of health, lifetime medical and psychiatric comorbidities, and vaccine type.

Among vaccinated SUD patients, three-quarters received the Pfizer-BioNTech vaccine, one-fifth received the Moderna vaccine, and 3.3% received the Johnson & Johnson vaccine.

In contrast, among the vaccinated non-SUD population, almost all (88.2%) received the Pfizer-BioNTech vaccine, 10% received Moderna, and only 1.2% received the Johnson & Johnson vaccine.
 

Underlying drivers

The prevalence of adverse socioeconomic determinants of health was higher in vaccinated individuals with SUDs compared to those without (7.9% vs. 1.2%, respectively). Moreover, vaccinated patients with SUD had a higher lifetime prevalence of all comorbidities as well as transplants (all Ps < .001).

The risk for breakthrough infection was significantly higher in vaccinated individuals with SUDs compared to those without (all Ps < .001).

After controlling for adverse socioeconomic determinants of health and comorbid medical conditions, the risk for breakthrough infection “no longer differed in SUD compared to non-SUD cohorts, except for patients with cannabis use disorder, who remained at significantly increased risk,” the authors report.

In both populations, the rate of breakthrough infections “steadily increased” between January and August 2021.

The risk for hospitalization and death was higher among those with breakthrough infections, compared with those in the matched cohort without breakthrough infections, but the risk for hospitalization and death were higher in the SUD compared with the non-SUD population.

In the SUD patients, after matching an array of demographic, socioeconomic, and medical factors as well as vaccine type, only cannabis use disorder was associated with a higher risk in African Americans, compared with matched Caucasians (HR = 1.63; 95% confidence interval, 1.06-2.51).

“When we adjusted the data to account for comorbidities and for socioeconomic background, we no longer saw a difference between those with substance use disorders and those without – the only exception to this was for people with cannabis use disorder,” said Dr. Volkow.

“This suggests that these factors, which are often associated with substance use disorders, are likely the underlying drivers for the increased risk,” she continued.

She added that it is important for other studies to investigate why individuals with cannabis use disorder had a higher risk for breakthrough infections.
 

Good news, bad news

Commenting for this news organization, Anna Lembke, MD, professor of psychiatry and behavioral sciences, Stanford (Calif.) University, said the study is important and contains good news and bad news.

The good news, she said, “is that, after controlling for comorbidities and socioeconomic variables, patients with SUDs are no more likely than patients without SUDs to get COVID after getting vaccinated, and the bad news is that if vaccinated patients with SUDs do get COVID, they’re more likely to end up hospitalized or die from it,” said Dr. Lembke, who was not involved with the study.

“The take-home message for clinicians is that if your vaccinated patient with an SUD gets COVID, be on the alert for a more complicated medical outcome and a higher risk of death,” warned Dr. Lembke.

This study was supported by the U.S. National Institute on Drug Abuse, the U.S. National Institute of Aging, and the Clinical and Translational Science Collaborative (CTSC) of Cleveland. No disclosures were listed on the original study. Dr. Lembke has disclosed no relevant financial relationships.

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

Individuals with substance use disorders (SUDs) have a twofold increased risk for COVID-related hospitalization and death even after vaccination, new research shows.

Investigators analyzed data on over 10,000 vaccinated individuals with various SUDs and almost 600,000 vaccinated individuals without an SUD. They found about twice as many individuals with an SUD had a breakthrough COVID-19 infection as their counterparts without an SUD, at 7% versus 3.6%, respectively.

Worrisome phase

SUDs are “often associated with multiple comorbid conditions that are known risk factors for severe outcome of COVID-19 infection,” the investigators note.

Research published early in the pandemic showed patients with SUDs, including alcohol, cannabis, cocaine, opioid, and tobacco use disorders, were “at increased risk for COVID-19 infection and associated severe outcomes, especially among African Americans,” they add.

To date, no research has focused on the potential risk for COVID in individuals with SUDs following vaccination. In addition, although vaccines are “very effective,” breakthrough infections have been recorded, “highlighting the need to identify populations that might be most vulnerable, as we have entered a worrisome new phase of the pandemic,” the authors write.

For the study, researchers used a data analytics platform that included de-identified information from 63 health care organizations across the U.S. to estimate the risk for breakthrough COVID-19 among vaccinated patients with SUD (n = 30,183; mean age 59.3, 51.4% male, 63.2% White, 26.2% African American), compared with vaccinated individuals without SUDs (n = 549,189; mean age 54.7, 43.2% male, 63.4% White, 14.3% African American) between December 2020 and August 2021.

They also conducted statistical analyses to examine how the rate of breakthrough cases changed over that timeframe.

The cohorts were matched by demographics, adverse socioeconomic determinants of health, lifetime medical and psychiatric comorbidities, and vaccine type.

Among vaccinated SUD patients, three-quarters received the Pfizer-BioNTech vaccine, one-fifth received the Moderna vaccine, and 3.3% received the Johnson & Johnson vaccine.

In contrast, among the vaccinated non-SUD population, almost all (88.2%) received the Pfizer-BioNTech vaccine, 10% received Moderna, and only 1.2% received the Johnson & Johnson vaccine.
 

Underlying drivers

The prevalence of adverse socioeconomic determinants of health was higher in vaccinated individuals with SUDs compared to those without (7.9% vs. 1.2%, respectively). Moreover, vaccinated patients with SUD had a higher lifetime prevalence of all comorbidities as well as transplants (all Ps < .001).

The risk for breakthrough infection was significantly higher in vaccinated individuals with SUDs compared to those without (all Ps < .001).

After controlling for adverse socioeconomic determinants of health and comorbid medical conditions, the risk for breakthrough infection “no longer differed in SUD compared to non-SUD cohorts, except for patients with cannabis use disorder, who remained at significantly increased risk,” the authors report.

In both populations, the rate of breakthrough infections “steadily increased” between January and August 2021.

The risk for hospitalization and death was higher among those with breakthrough infections, compared with those in the matched cohort without breakthrough infections, but the risk for hospitalization and death were higher in the SUD compared with the non-SUD population.

In the SUD patients, after matching an array of demographic, socioeconomic, and medical factors as well as vaccine type, only cannabis use disorder was associated with a higher risk in African Americans, compared with matched Caucasians (HR = 1.63; 95% confidence interval, 1.06-2.51).

“When we adjusted the data to account for comorbidities and for socioeconomic background, we no longer saw a difference between those with substance use disorders and those without – the only exception to this was for people with cannabis use disorder,” said Dr. Volkow.

“This suggests that these factors, which are often associated with substance use disorders, are likely the underlying drivers for the increased risk,” she continued.

She added that it is important for other studies to investigate why individuals with cannabis use disorder had a higher risk for breakthrough infections.
 

Good news, bad news

Commenting for this news organization, Anna Lembke, MD, professor of psychiatry and behavioral sciences, Stanford (Calif.) University, said the study is important and contains good news and bad news.

The good news, she said, “is that, after controlling for comorbidities and socioeconomic variables, patients with SUDs are no more likely than patients without SUDs to get COVID after getting vaccinated, and the bad news is that if vaccinated patients with SUDs do get COVID, they’re more likely to end up hospitalized or die from it,” said Dr. Lembke, who was not involved with the study.

“The take-home message for clinicians is that if your vaccinated patient with an SUD gets COVID, be on the alert for a more complicated medical outcome and a higher risk of death,” warned Dr. Lembke.

This study was supported by the U.S. National Institute on Drug Abuse, the U.S. National Institute of Aging, and the Clinical and Translational Science Collaborative (CTSC) of Cleveland. No disclosures were listed on the original study. Dr. Lembke has disclosed no relevant financial relationships.

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

Background: Daily labs are often unnecessary on clinically stable inpatients. Additionally, daily labs are frequently drawn very early in the morning, resulting in sleep disruptions. No prior studies have attempted an EHR-based intervention to simultaneously improve both frequency and timing of labs.

Dr. Lockwood is a hospitalist and chief of quality, performance, and patient safety at the Lexington (Ky.) VA Health Care System.

Background: Daily labs are often unnecessary on clinically stable inpatients. Additionally, daily labs are frequently drawn very early in the morning, resulting in sleep disruptions. No prior studies have attempted an EHR-based intervention to simultaneously improve both frequency and timing of labs.

Dr. Lockwood is a hospitalist and chief of quality, performance, and patient safety at the Lexington (Ky.) VA Health Care System.

Background: Daily labs are often unnecessary on clinically stable inpatients. Additionally, daily labs are frequently drawn very early in the morning, resulting in sleep disruptions. No prior studies have attempted an EHR-based intervention to simultaneously improve both frequency and timing of labs.

Dr. Lockwood is a hospitalist and chief of quality, performance, and patient safety at the Lexington (Ky.) VA Health Care System.

A panel of experts that advises the Food and Drug Administration on vaccine decisions voted unanimously Oct. 14 to approve booster doses of Moderna’s COVID-19 vaccine.

The 19 members of the FDA’s Vaccines and Related Biological Products Advisory Committee voted to authorize a 50-milligram dose -- half the dose used in the primary series of shots -- to boost immunity against COVID-19 at least 6 months after the second dose. Those who might need a booster are the same groups who’ve gotten a green light for third Pfizer doses. They include people:

• Over age 65
• Ages 18 to 64 who are at higher risk for severe COVID
• Who are at higher risk of catching COVID because they live in group settings like nursing homes or prisons, or because they are frequently exposed at work, as health care workers are

The agency is not bound by the committee’s vote but usually follows its recommendations.

Some members of the committee said they weren’t satisfied with the data Moderna submitted to support its application but, for practical reasons, said it wouldn’t be fair to take booster doses off the table for Moderna recipients when Pfizer’s boosters were already available.

“The data are not perfect, but these are extraordinary times and we have to work with data that are not perfect,” said Eric Rubin, MD, editor-in-chief of TheNew England Journal of Medicine and a temporary voting member on the committee.

Patrick Moore, MD, a professor at the University of Pittsburgh Cancer Institute who is also a temporary voting member, said he voted to approve the Moderna boosters based “more on a gut feeling than on truly serious data.”

“I’ve got some real issues with this vote,” he said.

“We need to see good solid data, and it needs to be explained well,” Dr. Moore said, challenging companies making future applications to do better.

Next, the FDA will have to formally sign off on the emergency use authorization, which it is expected to do. Then, the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices will meet to make formal recommendations on use of the Moderna boosters. That group is scheduled to meet Oct. 21 to take up questions of exactly how these boosters should be used.

Peter Marks, MD, head of the FDA’s Center for Biologics Evaluation and Research, cautioned that the CDC is more constrained in making recommendations under an emergency use authorization than it would be if the boosters had gotten full approval. So it will likely align its vote with the conditions of the emergency use authorization from the FDA.

After the advisory committee votes, the director of the CDC has to approve its recommendation.

Overall, data show that two doses of the Moderna vaccine remains highly effective at preventing hospitalization and death. But over time, levels of the body’s first line of defense against a virus -- its neutralizing antibodies -- fall somewhat. This drop seems to correspond with an increased risk for breakthrough cases of COVID-19.

Data presented by Moderna Oct. 14 showed the risk of breakthrough infections increased by 36% in study participants who received the vaccine in their clinical trials, compared to people in the same study who received a placebo first, and got the vaccine later, when the trial was unblended. Their protection was more recent, and they had fewer breakthrough infections.

In considering booster doses, the FDA has asked drugmakers to do studies that look at the immune responses of small groups of study participants and compare them to the immune responses seen in study participants after their first two vaccine doses.

To be considered effective, boosters have to clear two bars. The first looks at the concentration of antibodies generated in the blood of boosted study volunteers. The second looks at how many boosted study participants saw a four-fold increase in their blood antibody levels a month after the booster minus the number of people who saw the same increase after their original two doses.

Moderna presented data that its boosters met the first criteria, but failed to meet the second, perhaps because so many people in the study had good responses after their first two doses of the vaccines.

The FDA’s advisory committee will reconvene Oct. 15 to hear evidence supporting the emergency use authorization of a booster dose of the Johnson & Johnson vaccine.

This article was updated Oct. 15 and first appeared on WebMD.com.

A panel of experts that advises the Food and Drug Administration on vaccine decisions voted unanimously Oct. 14 to approve booster doses of Moderna’s COVID-19 vaccine.

The 19 members of the FDA’s Vaccines and Related Biological Products Advisory Committee voted to authorize a 50-milligram dose -- half the dose used in the primary series of shots -- to boost immunity against COVID-19 at least 6 months after the second dose. Those who might need a booster are the same groups who’ve gotten a green light for third Pfizer doses. They include people:

• Over age 65
• Ages 18 to 64 who are at higher risk for severe COVID
• Who are at higher risk of catching COVID because they live in group settings like nursing homes or prisons, or because they are frequently exposed at work, as health care workers are

The agency is not bound by the committee’s vote but usually follows its recommendations.

Some members of the committee said they weren’t satisfied with the data Moderna submitted to support its application but, for practical reasons, said it wouldn’t be fair to take booster doses off the table for Moderna recipients when Pfizer’s boosters were already available.

“The data are not perfect, but these are extraordinary times and we have to work with data that are not perfect,” said Eric Rubin, MD, editor-in-chief of TheNew England Journal of Medicine and a temporary voting member on the committee.

Patrick Moore, MD, a professor at the University of Pittsburgh Cancer Institute who is also a temporary voting member, said he voted to approve the Moderna boosters based “more on a gut feeling than on truly serious data.”

“I’ve got some real issues with this vote,” he said.

“We need to see good solid data, and it needs to be explained well,” Dr. Moore said, challenging companies making future applications to do better.

Next, the FDA will have to formally sign off on the emergency use authorization, which it is expected to do. Then, the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices will meet to make formal recommendations on use of the Moderna boosters. That group is scheduled to meet Oct. 21 to take up questions of exactly how these boosters should be used.

Peter Marks, MD, head of the FDA’s Center for Biologics Evaluation and Research, cautioned that the CDC is more constrained in making recommendations under an emergency use authorization than it would be if the boosters had gotten full approval. So it will likely align its vote with the conditions of the emergency use authorization from the FDA.

After the advisory committee votes, the director of the CDC has to approve its recommendation.

Overall, data show that two doses of the Moderna vaccine remains highly effective at preventing hospitalization and death. But over time, levels of the body’s first line of defense against a virus -- its neutralizing antibodies -- fall somewhat. This drop seems to correspond with an increased risk for breakthrough cases of COVID-19.

Data presented by Moderna Oct. 14 showed the risk of breakthrough infections increased by 36% in study participants who received the vaccine in their clinical trials, compared to people in the same study who received a placebo first, and got the vaccine later, when the trial was unblended. Their protection was more recent, and they had fewer breakthrough infections.

In considering booster doses, the FDA has asked drugmakers to do studies that look at the immune responses of small groups of study participants and compare them to the immune responses seen in study participants after their first two vaccine doses.

To be considered effective, boosters have to clear two bars. The first looks at the concentration of antibodies generated in the blood of boosted study volunteers. The second looks at how many boosted study participants saw a four-fold increase in their blood antibody levels a month after the booster minus the number of people who saw the same increase after their original two doses.

Moderna presented data that its boosters met the first criteria, but failed to meet the second, perhaps because so many people in the study had good responses after their first two doses of the vaccines.

The FDA’s advisory committee will reconvene Oct. 15 to hear evidence supporting the emergency use authorization of a booster dose of the Johnson & Johnson vaccine.

This article was updated Oct. 15 and first appeared on WebMD.com.

A panel of experts that advises the Food and Drug Administration on vaccine decisions voted unanimously Oct. 14 to approve booster doses of Moderna’s COVID-19 vaccine.

The 19 members of the FDA’s Vaccines and Related Biological Products Advisory Committee voted to authorize a 50-milligram dose -- half the dose used in the primary series of shots -- to boost immunity against COVID-19 at least 6 months after the second dose. Those who might need a booster are the same groups who’ve gotten a green light for third Pfizer doses. They include people:

• Over age 65
• Ages 18 to 64 who are at higher risk for severe COVID
• Who are at higher risk of catching COVID because they live in group settings like nursing homes or prisons, or because they are frequently exposed at work, as health care workers are

The agency is not bound by the committee’s vote but usually follows its recommendations.

Some members of the committee said they weren’t satisfied with the data Moderna submitted to support its application but, for practical reasons, said it wouldn’t be fair to take booster doses off the table for Moderna recipients when Pfizer’s boosters were already available.

“The data are not perfect, but these are extraordinary times and we have to work with data that are not perfect,” said Eric Rubin, MD, editor-in-chief of TheNew England Journal of Medicine and a temporary voting member on the committee.

Patrick Moore, MD, a professor at the University of Pittsburgh Cancer Institute who is also a temporary voting member, said he voted to approve the Moderna boosters based “more on a gut feeling than on truly serious data.”

“I’ve got some real issues with this vote,” he said.

“We need to see good solid data, and it needs to be explained well,” Dr. Moore said, challenging companies making future applications to do better.

Next, the FDA will have to formally sign off on the emergency use authorization, which it is expected to do. Then, the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices will meet to make formal recommendations on use of the Moderna boosters. That group is scheduled to meet Oct. 21 to take up questions of exactly how these boosters should be used.

Peter Marks, MD, head of the FDA’s Center for Biologics Evaluation and Research, cautioned that the CDC is more constrained in making recommendations under an emergency use authorization than it would be if the boosters had gotten full approval. So it will likely align its vote with the conditions of the emergency use authorization from the FDA.

After the advisory committee votes, the director of the CDC has to approve its recommendation.

Overall, data show that two doses of the Moderna vaccine remains highly effective at preventing hospitalization and death. But over time, levels of the body’s first line of defense against a virus -- its neutralizing antibodies -- fall somewhat. This drop seems to correspond with an increased risk for breakthrough cases of COVID-19.

Data presented by Moderna Oct. 14 showed the risk of breakthrough infections increased by 36% in study participants who received the vaccine in their clinical trials, compared to people in the same study who received a placebo first, and got the vaccine later, when the trial was unblended. Their protection was more recent, and they had fewer breakthrough infections.

In considering booster doses, the FDA has asked drugmakers to do studies that look at the immune responses of small groups of study participants and compare them to the immune responses seen in study participants after their first two vaccine doses.

To be considered effective, boosters have to clear two bars. The first looks at the concentration of antibodies generated in the blood of boosted study volunteers. The second looks at how many boosted study participants saw a four-fold increase in their blood antibody levels a month after the booster minus the number of people who saw the same increase after their original two doses.

Moderna presented data that its boosters met the first criteria, but failed to meet the second, perhaps because so many people in the study had good responses after their first two doses of the vaccines.

The FDA’s advisory committee will reconvene Oct. 15 to hear evidence supporting the emergency use authorization of a booster dose of the Johnson & Johnson vaccine.

This article was updated Oct. 15 and first appeared on WebMD.com.

The plasma D-dimer assay has been used, along with clinical prediction scores, to rule out pulmonary embolism (PE) in critically ill patients for decades, but a new study suggests it may not be the right test to use in hospitalized COVID-19 patients.

The results showed that all hospitalized patients with COVID-19 and radiographic evidence of PE had plasma D-dimer levels of 0.05 mcg/mL or greater, the cutoff point for the diagnosis.

“If using D-dimer to exclude patients with PE, the increased values we found among 92.3% of patients suggest that this assay would be less useful than in the populations in which it was originally validated, among which a minority of patients had increased D-dimer values,” the authors write. “Setting higher D-dimer thresholds was associated with improved specificity at the cost of an increased false-negative rate that could be associated with an unacceptable patient safety risk.”

The inclusion of patients with D-dimer and computed tomography pulmonary angiography (CTPA) was necessary to estimate diagnostic performance, they note, but “this may have introduced selection bias by excluding patients unable to undergo CTPA.”

“Nonetheless, given the high pretest probability of PE and low specificity observed in this and other studies, these results suggest that use of D-dimer levels to exclude PE among patients hospitalized with COVID-19 may be inappropriate and have limited clinical utility,” they conclude.

Led by Constantine N. Logothetis, MD, from Morsani College of Medicine, University of South Florida, Tampa, the study was published online Oct. 8 as a Research Letter in JAMA Network Open.
 

Uncertain utility

The authors note that the availability of D-dimer samples routinely collected from hospitalized COVID-19 patients – as well as the heterogeneity of early, smaller studies – generated uncertainty about the utility of this assay.

This uncertainty prompted them to test the diagnostic accuracy of the D-dimer assay among a sample of 1,541 patients who were hospitalized with COVID-19 at their institution between January 2020 and February 2021 for a possible PE.

They compared plasma D-dimer concentrations with CTPA, the criterion standard for diagnosing PE, in 287 of those patients.

Overall, 118 patients (41.1%) required care in the ICU, and 27 patients (9.4%) died during hospitalization.

The investigators looked at the ability of plasma D-dimer levels collected on the same day as CTPA to diagnose PE.

Thirty-seven patients (12.9%) had radiographic evidence of PE, and 250 patients (87.1%) did not.

Overall, the vast majority of patients (92.3%; n = 265 patients) had plasma D-dimer levels of 0.05 mcg/mL or more, including all patients with PE and 225 of 250 patients without PE (91.2%).

The median D-dimer values were 1.0 mcg/mL for 250 patients without PE and 6.1 mcg/mL for 37 patients with PE.

D-dimer values ranged from 0.2 mcg/mL to 128 mcg/mL among patients without PE, and from 0.5 mcg/mL to more than 10,000 mcg/mL among patients with PE. Patients without PE had statistically significantly decreased mean D-dimer values (8.7 mcg/mL vs. 1.2 mcg/mL; P < .001).

A D-dimer concentration of 0.05 mcg/mL was associated with a sensitivity of 100%, specificity of 8.8%, negative predictive value (NPV) of 100%, positive predictive value (PPV) of 13.9%, and a negative likelihood ratio (NLR) of less than 0.1.

The age-adjusted threshold was associated with a sensitivity of 94.6%, specificity of 22.8%, NPV of 96.6%, PPV of 13.9%, and NLR of 0.24.

The authors note that all hospitalized patients with COVID-19 and radiographic evidence of PE had plasma D-dimer levels of 0.05 mcg/mL or greater.
 

D-dimer in VTE may not extrapolate to COVID-19

“The D-dimer test, which is a measure of circulating byproducts of blood clot dissolution, has long been incorporated into diagnostic algorithms for venous thromboembolic [VTE] disease, including deep vein thrombosis and pulmonary embolism. It is uncertain whether this diagnostic use of D-dimer testing can be extrapolated to the context of COVID-19 – an illness we now understand to be associated itself with intravascular thrombosis and fibrinolysis,” Matthew Tomey, MD, a cardiologist at Mount Sinai Morningside, New York, said in an interview.

“The authors of this study sought to evaluate the test characteristics of the D-dimer assay for diagnosis of pulmonary embolism in a consecutive series of 287 hospitalized patients with COVID-19 who underwent computed tomography pulmonary angiography (CTPA). This was a selected group of patients representing less than 20% of the 1,541 patients screened. Exclusion of data on the more than 80% of screened patients who did not undergo CTPA is a significant limitation of the study,” Dr. Tomey said.

“In the highly selected, small cohort studied, representing a group of patients at high pretest probability of pulmonary embolism, there was no patient with pulmonary embolism who had a D-dimer value less than 0.5 mcg/mL. Yet broad ranges of D-dimer values were observed in COVID-19 patients with (0.5 to >10,000 mcg/mL) and without (0.2 to 128 mcg/mL) pulmonary embolism,” he added.

Based on the presented data, it is likely true that very low levels of D-dimer decrease the likelihood of finding a pulmonary embolus on a CTPA, if it is performed, Dr. Tomey noted.

“Yet the data confirm that a wide range of D-dimer values can be observed in COVID-19 patients with or without pulmonary embolism. It is not clear at this time that D-dimer levels should be used as gatekeepers to diagnostic imaging studies such as CTPA when pretest suspicion of pulmonary embolism is high,” he said.

“This issue becomes relevant as we consider evolving data on use of anticoagulation in treatment of hospitalized patients with COVID-19. We learned this year that in critically ill patients hospitalized with COVID-19, routine therapeutic anticoagulation (with heparin) was not beneficial and potentially harmful when compared with usual thromboprophylaxis,” he concluded.

“As we strive to balance competing risks of bleeding and thrombosis, accurate diagnosis of pulmonary embolism is important to guide decision-making about therapeutic anticoagulation, including in COVID-19.”

Dr. Logothetis and Dr. Tomey have disclosed no relevant financial relationships.

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

The plasma D-dimer assay has been used, along with clinical prediction scores, to rule out pulmonary embolism (PE) in critically ill patients for decades, but a new study suggests it may not be the right test to use in hospitalized COVID-19 patients.

The results showed that all hospitalized patients with COVID-19 and radiographic evidence of PE had plasma D-dimer levels of 0.05 mcg/mL or greater, the cutoff point for the diagnosis.

“If using D-dimer to exclude patients with PE, the increased values we found among 92.3% of patients suggest that this assay would be less useful than in the populations in which it was originally validated, among which a minority of patients had increased D-dimer values,” the authors write. “Setting higher D-dimer thresholds was associated with improved specificity at the cost of an increased false-negative rate that could be associated with an unacceptable patient safety risk.”

The inclusion of patients with D-dimer and computed tomography pulmonary angiography (CTPA) was necessary to estimate diagnostic performance, they note, but “this may have introduced selection bias by excluding patients unable to undergo CTPA.”

“Nonetheless, given the high pretest probability of PE and low specificity observed in this and other studies, these results suggest that use of D-dimer levels to exclude PE among patients hospitalized with COVID-19 may be inappropriate and have limited clinical utility,” they conclude.

Led by Constantine N. Logothetis, MD, from Morsani College of Medicine, University of South Florida, Tampa, the study was published online Oct. 8 as a Research Letter in JAMA Network Open.
 

Uncertain utility

The authors note that the availability of D-dimer samples routinely collected from hospitalized COVID-19 patients – as well as the heterogeneity of early, smaller studies – generated uncertainty about the utility of this assay.

This uncertainty prompted them to test the diagnostic accuracy of the D-dimer assay among a sample of 1,541 patients who were hospitalized with COVID-19 at their institution between January 2020 and February 2021 for a possible PE.

They compared plasma D-dimer concentrations with CTPA, the criterion standard for diagnosing PE, in 287 of those patients.

Overall, 118 patients (41.1%) required care in the ICU, and 27 patients (9.4%) died during hospitalization.

The investigators looked at the ability of plasma D-dimer levels collected on the same day as CTPA to diagnose PE.

Thirty-seven patients (12.9%) had radiographic evidence of PE, and 250 patients (87.1%) did not.

Overall, the vast majority of patients (92.3%; n = 265 patients) had plasma D-dimer levels of 0.05 mcg/mL or more, including all patients with PE and 225 of 250 patients without PE (91.2%).

The median D-dimer values were 1.0 mcg/mL for 250 patients without PE and 6.1 mcg/mL for 37 patients with PE.

D-dimer values ranged from 0.2 mcg/mL to 128 mcg/mL among patients without PE, and from 0.5 mcg/mL to more than 10,000 mcg/mL among patients with PE. Patients without PE had statistically significantly decreased mean D-dimer values (8.7 mcg/mL vs. 1.2 mcg/mL; P < .001).

A D-dimer concentration of 0.05 mcg/mL was associated with a sensitivity of 100%, specificity of 8.8%, negative predictive value (NPV) of 100%, positive predictive value (PPV) of 13.9%, and a negative likelihood ratio (NLR) of less than 0.1.

The age-adjusted threshold was associated with a sensitivity of 94.6%, specificity of 22.8%, NPV of 96.6%, PPV of 13.9%, and NLR of 0.24.

The authors note that all hospitalized patients with COVID-19 and radiographic evidence of PE had plasma D-dimer levels of 0.05 mcg/mL or greater.
 

D-dimer in VTE may not extrapolate to COVID-19

“The D-dimer test, which is a measure of circulating byproducts of blood clot dissolution, has long been incorporated into diagnostic algorithms for venous thromboembolic [VTE] disease, including deep vein thrombosis and pulmonary embolism. It is uncertain whether this diagnostic use of D-dimer testing can be extrapolated to the context of COVID-19 – an illness we now understand to be associated itself with intravascular thrombosis and fibrinolysis,” Matthew Tomey, MD, a cardiologist at Mount Sinai Morningside, New York, said in an interview.

“The authors of this study sought to evaluate the test characteristics of the D-dimer assay for diagnosis of pulmonary embolism in a consecutive series of 287 hospitalized patients with COVID-19 who underwent computed tomography pulmonary angiography (CTPA). This was a selected group of patients representing less than 20% of the 1,541 patients screened. Exclusion of data on the more than 80% of screened patients who did not undergo CTPA is a significant limitation of the study,” Dr. Tomey said.

“In the highly selected, small cohort studied, representing a group of patients at high pretest probability of pulmonary embolism, there was no patient with pulmonary embolism who had a D-dimer value less than 0.5 mcg/mL. Yet broad ranges of D-dimer values were observed in COVID-19 patients with (0.5 to >10,000 mcg/mL) and without (0.2 to 128 mcg/mL) pulmonary embolism,” he added.

Based on the presented data, it is likely true that very low levels of D-dimer decrease the likelihood of finding a pulmonary embolus on a CTPA, if it is performed, Dr. Tomey noted.

“Yet the data confirm that a wide range of D-dimer values can be observed in COVID-19 patients with or without pulmonary embolism. It is not clear at this time that D-dimer levels should be used as gatekeepers to diagnostic imaging studies such as CTPA when pretest suspicion of pulmonary embolism is high,” he said.

“This issue becomes relevant as we consider evolving data on use of anticoagulation in treatment of hospitalized patients with COVID-19. We learned this year that in critically ill patients hospitalized with COVID-19, routine therapeutic anticoagulation (with heparin) was not beneficial and potentially harmful when compared with usual thromboprophylaxis,” he concluded.

“As we strive to balance competing risks of bleeding and thrombosis, accurate diagnosis of pulmonary embolism is important to guide decision-making about therapeutic anticoagulation, including in COVID-19.”

Dr. Logothetis and Dr. Tomey have disclosed no relevant financial relationships.

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

The plasma D-dimer assay has been used, along with clinical prediction scores, to rule out pulmonary embolism (PE) in critically ill patients for decades, but a new study suggests it may not be the right test to use in hospitalized COVID-19 patients.

The results showed that all hospitalized patients with COVID-19 and radiographic evidence of PE had plasma D-dimer levels of 0.05 mcg/mL or greater, the cutoff point for the diagnosis.

“If using D-dimer to exclude patients with PE, the increased values we found among 92.3% of patients suggest that this assay would be less useful than in the populations in which it was originally validated, among which a minority of patients had increased D-dimer values,” the authors write. “Setting higher D-dimer thresholds was associated with improved specificity at the cost of an increased false-negative rate that could be associated with an unacceptable patient safety risk.”

The inclusion of patients with D-dimer and computed tomography pulmonary angiography (CTPA) was necessary to estimate diagnostic performance, they note, but “this may have introduced selection bias by excluding patients unable to undergo CTPA.”

“Nonetheless, given the high pretest probability of PE and low specificity observed in this and other studies, these results suggest that use of D-dimer levels to exclude PE among patients hospitalized with COVID-19 may be inappropriate and have limited clinical utility,” they conclude.

Led by Constantine N. Logothetis, MD, from Morsani College of Medicine, University of South Florida, Tampa, the study was published online Oct. 8 as a Research Letter in JAMA Network Open.
 

Uncertain utility

The authors note that the availability of D-dimer samples routinely collected from hospitalized COVID-19 patients – as well as the heterogeneity of early, smaller studies – generated uncertainty about the utility of this assay.

This uncertainty prompted them to test the diagnostic accuracy of the D-dimer assay among a sample of 1,541 patients who were hospitalized with COVID-19 at their institution between January 2020 and February 2021 for a possible PE.

They compared plasma D-dimer concentrations with CTPA, the criterion standard for diagnosing PE, in 287 of those patients.

Overall, 118 patients (41.1%) required care in the ICU, and 27 patients (9.4%) died during hospitalization.

The investigators looked at the ability of plasma D-dimer levels collected on the same day as CTPA to diagnose PE.

Thirty-seven patients (12.9%) had radiographic evidence of PE, and 250 patients (87.1%) did not.

Overall, the vast majority of patients (92.3%; n = 265 patients) had plasma D-dimer levels of 0.05 mcg/mL or more, including all patients with PE and 225 of 250 patients without PE (91.2%).

The median D-dimer values were 1.0 mcg/mL for 250 patients without PE and 6.1 mcg/mL for 37 patients with PE.

D-dimer values ranged from 0.2 mcg/mL to 128 mcg/mL among patients without PE, and from 0.5 mcg/mL to more than 10,000 mcg/mL among patients with PE. Patients without PE had statistically significantly decreased mean D-dimer values (8.7 mcg/mL vs. 1.2 mcg/mL; P < .001).

A D-dimer concentration of 0.05 mcg/mL was associated with a sensitivity of 100%, specificity of 8.8%, negative predictive value (NPV) of 100%, positive predictive value (PPV) of 13.9%, and a negative likelihood ratio (NLR) of less than 0.1.

The age-adjusted threshold was associated with a sensitivity of 94.6%, specificity of 22.8%, NPV of 96.6%, PPV of 13.9%, and NLR of 0.24.

The authors note that all hospitalized patients with COVID-19 and radiographic evidence of PE had plasma D-dimer levels of 0.05 mcg/mL or greater.
 

D-dimer in VTE may not extrapolate to COVID-19

“The D-dimer test, which is a measure of circulating byproducts of blood clot dissolution, has long been incorporated into diagnostic algorithms for venous thromboembolic [VTE] disease, including deep vein thrombosis and pulmonary embolism. It is uncertain whether this diagnostic use of D-dimer testing can be extrapolated to the context of COVID-19 – an illness we now understand to be associated itself with intravascular thrombosis and fibrinolysis,” Matthew Tomey, MD, a cardiologist at Mount Sinai Morningside, New York, said in an interview.

“The authors of this study sought to evaluate the test characteristics of the D-dimer assay for diagnosis of pulmonary embolism in a consecutive series of 287 hospitalized patients with COVID-19 who underwent computed tomography pulmonary angiography (CTPA). This was a selected group of patients representing less than 20% of the 1,541 patients screened. Exclusion of data on the more than 80% of screened patients who did not undergo CTPA is a significant limitation of the study,” Dr. Tomey said.

“In the highly selected, small cohort studied, representing a group of patients at high pretest probability of pulmonary embolism, there was no patient with pulmonary embolism who had a D-dimer value less than 0.5 mcg/mL. Yet broad ranges of D-dimer values were observed in COVID-19 patients with (0.5 to >10,000 mcg/mL) and without (0.2 to 128 mcg/mL) pulmonary embolism,” he added.

Based on the presented data, it is likely true that very low levels of D-dimer decrease the likelihood of finding a pulmonary embolus on a CTPA, if it is performed, Dr. Tomey noted.

“Yet the data confirm that a wide range of D-dimer values can be observed in COVID-19 patients with or without pulmonary embolism. It is not clear at this time that D-dimer levels should be used as gatekeepers to diagnostic imaging studies such as CTPA when pretest suspicion of pulmonary embolism is high,” he said.

“This issue becomes relevant as we consider evolving data on use of anticoagulation in treatment of hospitalized patients with COVID-19. We learned this year that in critically ill patients hospitalized with COVID-19, routine therapeutic anticoagulation (with heparin) was not beneficial and potentially harmful when compared with usual thromboprophylaxis,” he concluded.

“As we strive to balance competing risks of bleeding and thrombosis, accurate diagnosis of pulmonary embolism is important to guide decision-making about therapeutic anticoagulation, including in COVID-19.”

Dr. Logothetis and Dr. Tomey have disclosed no relevant financial relationships.

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

Background: Medical comanagement of hip fracture patients is common. Prior evidence comes from mostly single-center studies, with most improvements being in process indicators such as length of stay and staff satisfaction.

This study failed to show superior outcomes in comanagement patients. The retrospective nature and propensity matching will lead to the question of unmeasured confounding in this large multinational database.

Bottom line: Medical comanagement of hip fractures was not associated with improved outcomes in the NSQIP database.

Citation: Maxwell BG, Mirza A. Medical comanagement of hip fracture patients is not associated with superior perioperative outcomes: A propensity score–matched retrospective cohort analysis of the National Surgical Quality Improvement Project. J Hosp Med. 2020;15:468-74.

Dr. Lockwood is a hospitalist and chief of quality, performance, and patient safety at the Lexington (Ky.) VA Health Care System.

Background: Medical comanagement of hip fracture patients is common. Prior evidence comes from mostly single-center studies, with most improvements being in process indicators such as length of stay and staff satisfaction.

This study failed to show superior outcomes in comanagement patients. The retrospective nature and propensity matching will lead to the question of unmeasured confounding in this large multinational database.

Bottom line: Medical comanagement of hip fractures was not associated with improved outcomes in the NSQIP database.

Citation: Maxwell BG, Mirza A. Medical comanagement of hip fracture patients is not associated with superior perioperative outcomes: A propensity score–matched retrospective cohort analysis of the National Surgical Quality Improvement Project. J Hosp Med. 2020;15:468-74.

Dr. Lockwood is a hospitalist and chief of quality, performance, and patient safety at the Lexington (Ky.) VA Health Care System.

Background: Medical comanagement of hip fracture patients is common. Prior evidence comes from mostly single-center studies, with most improvements being in process indicators such as length of stay and staff satisfaction.

This study failed to show superior outcomes in comanagement patients. The retrospective nature and propensity matching will lead to the question of unmeasured confounding in this large multinational database.

Bottom line: Medical comanagement of hip fractures was not associated with improved outcomes in the NSQIP database.

Citation: Maxwell BG, Mirza A. Medical comanagement of hip fracture patients is not associated with superior perioperative outcomes: A propensity score–matched retrospective cohort analysis of the National Surgical Quality Improvement Project. J Hosp Med. 2020;15:468-74.

Dr. Lockwood is a hospitalist and chief of quality, performance, and patient safety at the Lexington (Ky.) VA Health Care System.

Parsonage-Turner syndrome has been highlighted as a potential adverse effect of mRNA COVID vaccines in a recent pharmacovigilance monitoring report from the French National Agency for the Safety of Medicines and Health Products (ANSM).

The rare condition — more common in men than in women — is characterized by the sudden onset of severe pain in the shoulder, followed by arm paralysis. Its etiopathogenesis is not well understood, but vaccines, in particular the flu vaccine, have been implicated in some cases, the report states.

Six serious cases of the syndrome related to the Comirnaty (Pfizer) vaccine were reported by healthcare professionals and vaccinated individuals or their family and friends since the start of the monitoring program. Four of these cases occurred from September 3 to 16.

All six cases involved patients 19 to 69 years of age — two women and four men — who developed symptoms in the 50 days after vaccination. Half were reported after the first dose and half after the second dose. Four of the patients are currently recovering; the outcomes of the other two are unknown.

In the case of the Spikevax vaccine (Moderna), two cases of Parsonage-Turner syndrome were reported after vaccination (plus one that occurred after 50 days, which is currently being managed). The onset of symptoms in these two men — one in his early 30s and one in his early 60s — occurred less than 18 days after vaccination. One occurred after the first dose and one after the second dose. This timing indicates a possible link between the syndrome and the vaccine. Both men are currently in recovery.

This signal of mRNA vaccines is now “officially recognized,” according to the Pfizer and Moderna reports.

It is also considered a “potential signal” in the Vaxzevria (AstraZeneca) pharmacovigilance report, released October 8, which describes eight cases of Parsonage-Turner syndrome after vaccination.
 

Safety profile of mRNA COVID vaccines in youth

Between June 15, when children 12 years and older became eligible for vaccination, and August 26, there were 591 reports of potential adverse events — out of 6 million Pfizer doses administered — in 12- to 18-year-old children.

Of the 591 cases, 35.2% were deemed serious. The majority of these were cases of reactogenicity, malaise, or postvaccine discomfort (25%), followed by instances of myocarditis and pericarditis (15.9% and 7.2%, respectively). In eight of 10 cases, one of the first symptom reported was chest pain.

Myocarditis occurred in 39.4% of people after the first injection (mean time to onset, 13 days) and 54.5% after the second (mean time to onset, 4 days). Recorded progress was favorable in nearly nine of 10 cases.

Pericarditis occurred in 53.3% of people after the first injection (mean time to onset, 13 days), and 40.0% after the second (mean time to onset, 4 days).

Three cases of multisystem inflammatory syndrome in children (MISC) were reported after monitoring ended.

For this age group, “all reported events will continue to be monitored, especially serious events and multisystem inflammatory syndrome in children,” report authors conclude.

Data for adverse events after the Moderna vaccine remain limited, but the report stipulates that “the adverse events reported in 12- to 18-year-olds who received an injection do not display any particular pattern, compared with those reported in older subjects, with the exception of a roughly 100-fold lower incidence of reported adverse effects in the 12- to 17-year age group.”
 

No safety warnings for pregnant women

The pharmacovigilance report — which covered the period from December 27, 2020 to September 9, 2021 — “raises no safety warnings for pregnant or nursing women with any of the COVID-19 vaccines.” In addition, two recent studies — one published in JAMA and one in the New England Journal of Medicine — have shown no link between spontaneous miscarriage and mRNA vaccines.

“Moreover, it should be stressed that current data from the international literature consistently show that maternal SARS COV-2 infection increases the risk for fetal, maternal, and neonatal complications, and that this risk may increase with the arrival of the Alpha and Delta variants,” they write. “It is therefore important to reiterate the current recommendations to vaccinate all pregnant women, regardless of the stage of pregnancy.”

Some adverse effects, such as thromboembolic effects, in utero death, HELLP (hemolysis, elevated liver enzymes, and low platelets) syndrome, and uterine contractions, will continue to be monitored.
 

Questions regarding menstrual disorders

As for gynecological disorders reported after vaccination, questions still remain. “In most of the reported cases, it is difficult to accurately determine whether the vaccine played a role in the occurrence of menstrual/genital bleeding,” the authors of the pharmacovigilance monitoring report state.

“Nonetheless, these cases warrant attention,” they add, and further discussions with the French National Association of Obstetricians and Gynecologists and the French Society of Endocrinology are needed in regard to these potential safety signals.

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

Parsonage-Turner syndrome has been highlighted as a potential adverse effect of mRNA COVID vaccines in a recent pharmacovigilance monitoring report from the French National Agency for the Safety of Medicines and Health Products (ANSM).

The rare condition — more common in men than in women — is characterized by the sudden onset of severe pain in the shoulder, followed by arm paralysis. Its etiopathogenesis is not well understood, but vaccines, in particular the flu vaccine, have been implicated in some cases, the report states.

Six serious cases of the syndrome related to the Comirnaty (Pfizer) vaccine were reported by healthcare professionals and vaccinated individuals or their family and friends since the start of the monitoring program. Four of these cases occurred from September 3 to 16.

All six cases involved patients 19 to 69 years of age — two women and four men — who developed symptoms in the 50 days after vaccination. Half were reported after the first dose and half after the second dose. Four of the patients are currently recovering; the outcomes of the other two are unknown.

In the case of the Spikevax vaccine (Moderna), two cases of Parsonage-Turner syndrome were reported after vaccination (plus one that occurred after 50 days, which is currently being managed). The onset of symptoms in these two men — one in his early 30s and one in his early 60s — occurred less than 18 days after vaccination. One occurred after the first dose and one after the second dose. This timing indicates a possible link between the syndrome and the vaccine. Both men are currently in recovery.

This signal of mRNA vaccines is now “officially recognized,” according to the Pfizer and Moderna reports.

It is also considered a “potential signal” in the Vaxzevria (AstraZeneca) pharmacovigilance report, released October 8, which describes eight cases of Parsonage-Turner syndrome after vaccination.
 

Safety profile of mRNA COVID vaccines in youth

Between June 15, when children 12 years and older became eligible for vaccination, and August 26, there were 591 reports of potential adverse events — out of 6 million Pfizer doses administered — in 12- to 18-year-old children.

Of the 591 cases, 35.2% were deemed serious. The majority of these were cases of reactogenicity, malaise, or postvaccine discomfort (25%), followed by instances of myocarditis and pericarditis (15.9% and 7.2%, respectively). In eight of 10 cases, one of the first symptom reported was chest pain.

Myocarditis occurred in 39.4% of people after the first injection (mean time to onset, 13 days) and 54.5% after the second (mean time to onset, 4 days). Recorded progress was favorable in nearly nine of 10 cases.

Pericarditis occurred in 53.3% of people after the first injection (mean time to onset, 13 days), and 40.0% after the second (mean time to onset, 4 days).

Three cases of multisystem inflammatory syndrome in children (MISC) were reported after monitoring ended.

For this age group, “all reported events will continue to be monitored, especially serious events and multisystem inflammatory syndrome in children,” report authors conclude.

Data for adverse events after the Moderna vaccine remain limited, but the report stipulates that “the adverse events reported in 12- to 18-year-olds who received an injection do not display any particular pattern, compared with those reported in older subjects, with the exception of a roughly 100-fold lower incidence of reported adverse effects in the 12- to 17-year age group.”
 

No safety warnings for pregnant women

The pharmacovigilance report — which covered the period from December 27, 2020 to September 9, 2021 — “raises no safety warnings for pregnant or nursing women with any of the COVID-19 vaccines.” In addition, two recent studies — one published in JAMA and one in the New England Journal of Medicine — have shown no link between spontaneous miscarriage and mRNA vaccines.

“Moreover, it should be stressed that current data from the international literature consistently show that maternal SARS COV-2 infection increases the risk for fetal, maternal, and neonatal complications, and that this risk may increase with the arrival of the Alpha and Delta variants,” they write. “It is therefore important to reiterate the current recommendations to vaccinate all pregnant women, regardless of the stage of pregnancy.”

Some adverse effects, such as thromboembolic effects, in utero death, HELLP (hemolysis, elevated liver enzymes, and low platelets) syndrome, and uterine contractions, will continue to be monitored.
 

Questions regarding menstrual disorders

As for gynecological disorders reported after vaccination, questions still remain. “In most of the reported cases, it is difficult to accurately determine whether the vaccine played a role in the occurrence of menstrual/genital bleeding,” the authors of the pharmacovigilance monitoring report state.

“Nonetheless, these cases warrant attention,” they add, and further discussions with the French National Association of Obstetricians and Gynecologists and the French Society of Endocrinology are needed in regard to these potential safety signals.

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

Parsonage-Turner syndrome has been highlighted as a potential adverse effect of mRNA COVID vaccines in a recent pharmacovigilance monitoring report from the French National Agency for the Safety of Medicines and Health Products (ANSM).

The rare condition — more common in men than in women — is characterized by the sudden onset of severe pain in the shoulder, followed by arm paralysis. Its etiopathogenesis is not well understood, but vaccines, in particular the flu vaccine, have been implicated in some cases, the report states.

Six serious cases of the syndrome related to the Comirnaty (Pfizer) vaccine were reported by healthcare professionals and vaccinated individuals or their family and friends since the start of the monitoring program. Four of these cases occurred from September 3 to 16.

All six cases involved patients 19 to 69 years of age — two women and four men — who developed symptoms in the 50 days after vaccination. Half were reported after the first dose and half after the second dose. Four of the patients are currently recovering; the outcomes of the other two are unknown.

In the case of the Spikevax vaccine (Moderna), two cases of Parsonage-Turner syndrome were reported after vaccination (plus one that occurred after 50 days, which is currently being managed). The onset of symptoms in these two men — one in his early 30s and one in his early 60s — occurred less than 18 days after vaccination. One occurred after the first dose and one after the second dose. This timing indicates a possible link between the syndrome and the vaccine. Both men are currently in recovery.

This signal of mRNA vaccines is now “officially recognized,” according to the Pfizer and Moderna reports.

It is also considered a “potential signal” in the Vaxzevria (AstraZeneca) pharmacovigilance report, released October 8, which describes eight cases of Parsonage-Turner syndrome after vaccination.
 

Safety profile of mRNA COVID vaccines in youth

Between June 15, when children 12 years and older became eligible for vaccination, and August 26, there were 591 reports of potential adverse events — out of 6 million Pfizer doses administered — in 12- to 18-year-old children.

Of the 591 cases, 35.2% were deemed serious. The majority of these were cases of reactogenicity, malaise, or postvaccine discomfort (25%), followed by instances of myocarditis and pericarditis (15.9% and 7.2%, respectively). In eight of 10 cases, one of the first symptom reported was chest pain.

Myocarditis occurred in 39.4% of people after the first injection (mean time to onset, 13 days) and 54.5% after the second (mean time to onset, 4 days). Recorded progress was favorable in nearly nine of 10 cases.

Pericarditis occurred in 53.3% of people after the first injection (mean time to onset, 13 days), and 40.0% after the second (mean time to onset, 4 days).

Three cases of multisystem inflammatory syndrome in children (MISC) were reported after monitoring ended.

For this age group, “all reported events will continue to be monitored, especially serious events and multisystem inflammatory syndrome in children,” report authors conclude.

Data for adverse events after the Moderna vaccine remain limited, but the report stipulates that “the adverse events reported in 12- to 18-year-olds who received an injection do not display any particular pattern, compared with those reported in older subjects, with the exception of a roughly 100-fold lower incidence of reported adverse effects in the 12- to 17-year age group.”
 

No safety warnings for pregnant women

The pharmacovigilance report — which covered the period from December 27, 2020 to September 9, 2021 — “raises no safety warnings for pregnant or nursing women with any of the COVID-19 vaccines.” In addition, two recent studies — one published in JAMA and one in the New England Journal of Medicine — have shown no link between spontaneous miscarriage and mRNA vaccines.

“Moreover, it should be stressed that current data from the international literature consistently show that maternal SARS COV-2 infection increases the risk for fetal, maternal, and neonatal complications, and that this risk may increase with the arrival of the Alpha and Delta variants,” they write. “It is therefore important to reiterate the current recommendations to vaccinate all pregnant women, regardless of the stage of pregnancy.”

Some adverse effects, such as thromboembolic effects, in utero death, HELLP (hemolysis, elevated liver enzymes, and low platelets) syndrome, and uterine contractions, will continue to be monitored.
 

Questions regarding menstrual disorders

As for gynecological disorders reported after vaccination, questions still remain. “In most of the reported cases, it is difficult to accurately determine whether the vaccine played a role in the occurrence of menstrual/genital bleeding,” the authors of the pharmacovigilance monitoring report state.

“Nonetheless, these cases warrant attention,” they add, and further discussions with the French National Association of Obstetricians and Gynecologists and the French Society of Endocrinology are needed in regard to these potential safety signals.

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

The chances that unvaccinated family members will be infected or hospitalized with COVID-19 drop sharply if even one family member is vaccinated. The chances are reduced even further with each additional vaccinated or otherwise immune family member, according to new data.

Lead author Peter Nordström, MD, PhD, with the unit of geriatric medicine, Umeå (Sweden) University, said in an interview the message is important for public health: “When you vaccinate, you do not just protect yourself but also your relatives.”

The findings were published online on Oct. 11, 2021, in JAMA Internal Medicine.

Researchers analyzed data from 1,789,728 individuals from 814,806 families from nationwide registries in Sweden. All individuals had acquired immunity either from previously being infected with SARS-CoV-2 or by being fully vaccinated (that is, having received two doses of the Moderna, Pfizer, or Oxford/AstraZeneca vaccines). Persons were considered for inclusion until May 26, 2021.

Each person with immunity was matched in a 1:1 ratio to a person without immunity from a cohort of individuals with families that had from two to five members. Families with more than five members were excluded because of small sample sizes.

Primarily nonimmune families in which there was one immune family member had a 45%-61% lower risk of contracting COVID-19 (hazard ratio, 0.39-0.55; 95% confidence interval, 0.37-0.61; P < .001).

The risk reduction increased to 75%-86% when two family members were immune (HR, 0.14-0.25; 95% CI, 0.11-0.27; P < .001).

It increased to 91%-94% when three family members were immune (HR, 0.06-0.09; 95% CI, 0.04-0.10; P < .001) and to 97% with four immune family members (HR, 0.03; 95% CI, 0.02-0.05; P < .001).

“The results were similar for the outcome of COVID-19 infection that was severe enough to warrant a hospital stay,” the authors wrote. They listed as an example that, in three-member families in which two members were immune, the remaining nonimmune family member had an 80% lower risk for hospitalization (HR, 0.20; 95% CI, 0.10-0.43; P < .001).
 

Global implications

Dr. Nordström said the team used the family setting because it was more easily identifiable as a cohort with the national registries and because COVID-19 is spread among people in close contact with each other. The findings have implications for other groups that spend large amounts of time together and for herd immunity, he added.

The findings may be particularly welcome in regions of the world where vaccination rates are very low. The authors noted that most of the global population has not yet been vaccinated and that “it is anticipated that most of the population in low-income countries will be unable to receive a vaccine in 2021, with current vaccination rates suggesting that completely inoculating 70%-85% of the global population may take up to 5 years.”

Jill Foster, MD, a pediatric infectious disease specialist at the University of Minnesota, Minneapolis, said in an interview she agrees that the news could encourage countries that have very low vaccination rates.

This study may help motivate areas with few resources to start small, she said: “Even one is better than zero.”

She added that this news could also help ease the minds of families that have immunocompromised members or in which there are children who are too young to be vaccinated.

With these data, she said, people can see there’s something they can do to help protect a family member.

Dr. Foster said that although it’s intuitive to think that the more vaccinated people there are in a family, the safer people are, “it’s really nice to see the data coming out of such a large dataset.”

The authors acknowledged that a limitation of the study is that, at the time the study was conducted, the Delta variant was uncommon in Sweden. It is therefore unclear whether the findings regarding immunity are still relevant in Sweden and elsewhere now that the Delta strain is dominant.

The authors reported no relevant financial relationships. Dr. Foster has received grant support from Moderna.

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

The chances that unvaccinated family members will be infected or hospitalized with COVID-19 drop sharply if even one family member is vaccinated. The chances are reduced even further with each additional vaccinated or otherwise immune family member, according to new data.

Lead author Peter Nordström, MD, PhD, with the unit of geriatric medicine, Umeå (Sweden) University, said in an interview the message is important for public health: “When you vaccinate, you do not just protect yourself but also your relatives.”

The findings were published online on Oct. 11, 2021, in JAMA Internal Medicine.

Researchers analyzed data from 1,789,728 individuals from 814,806 families from nationwide registries in Sweden. All individuals had acquired immunity either from previously being infected with SARS-CoV-2 or by being fully vaccinated (that is, having received two doses of the Moderna, Pfizer, or Oxford/AstraZeneca vaccines). Persons were considered for inclusion until May 26, 2021.

Each person with immunity was matched in a 1:1 ratio to a person without immunity from a cohort of individuals with families that had from two to five members. Families with more than five members were excluded because of small sample sizes.

Primarily nonimmune families in which there was one immune family member had a 45%-61% lower risk of contracting COVID-19 (hazard ratio, 0.39-0.55; 95% confidence interval, 0.37-0.61; P < .001).

The risk reduction increased to 75%-86% when two family members were immune (HR, 0.14-0.25; 95% CI, 0.11-0.27; P < .001).

It increased to 91%-94% when three family members were immune (HR, 0.06-0.09; 95% CI, 0.04-0.10; P < .001) and to 97% with four immune family members (HR, 0.03; 95% CI, 0.02-0.05; P < .001).

“The results were similar for the outcome of COVID-19 infection that was severe enough to warrant a hospital stay,” the authors wrote. They listed as an example that, in three-member families in which two members were immune, the remaining nonimmune family member had an 80% lower risk for hospitalization (HR, 0.20; 95% CI, 0.10-0.43; P < .001).
 

Global implications

Dr. Nordström said the team used the family setting because it was more easily identifiable as a cohort with the national registries and because COVID-19 is spread among people in close contact with each other. The findings have implications for other groups that spend large amounts of time together and for herd immunity, he added.

The findings may be particularly welcome in regions of the world where vaccination rates are very low. The authors noted that most of the global population has not yet been vaccinated and that “it is anticipated that most of the population in low-income countries will be unable to receive a vaccine in 2021, with current vaccination rates suggesting that completely inoculating 70%-85% of the global population may take up to 5 years.”

Jill Foster, MD, a pediatric infectious disease specialist at the University of Minnesota, Minneapolis, said in an interview she agrees that the news could encourage countries that have very low vaccination rates.

This study may help motivate areas with few resources to start small, she said: “Even one is better than zero.”

She added that this news could also help ease the minds of families that have immunocompromised members or in which there are children who are too young to be vaccinated.

With these data, she said, people can see there’s something they can do to help protect a family member.

Dr. Foster said that although it’s intuitive to think that the more vaccinated people there are in a family, the safer people are, “it’s really nice to see the data coming out of such a large dataset.”

The authors acknowledged that a limitation of the study is that, at the time the study was conducted, the Delta variant was uncommon in Sweden. It is therefore unclear whether the findings regarding immunity are still relevant in Sweden and elsewhere now that the Delta strain is dominant.

The authors reported no relevant financial relationships. Dr. Foster has received grant support from Moderna.

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

The chances that unvaccinated family members will be infected or hospitalized with COVID-19 drop sharply if even one family member is vaccinated. The chances are reduced even further with each additional vaccinated or otherwise immune family member, according to new data.

Lead author Peter Nordström, MD, PhD, with the unit of geriatric medicine, Umeå (Sweden) University, said in an interview the message is important for public health: “When you vaccinate, you do not just protect yourself but also your relatives.”

The findings were published online on Oct. 11, 2021, in JAMA Internal Medicine.

Researchers analyzed data from 1,789,728 individuals from 814,806 families from nationwide registries in Sweden. All individuals had acquired immunity either from previously being infected with SARS-CoV-2 or by being fully vaccinated (that is, having received two doses of the Moderna, Pfizer, or Oxford/AstraZeneca vaccines). Persons were considered for inclusion until May 26, 2021.

Each person with immunity was matched in a 1:1 ratio to a person without immunity from a cohort of individuals with families that had from two to five members. Families with more than five members were excluded because of small sample sizes.

Primarily nonimmune families in which there was one immune family member had a 45%-61% lower risk of contracting COVID-19 (hazard ratio, 0.39-0.55; 95% confidence interval, 0.37-0.61; P < .001).

The risk reduction increased to 75%-86% when two family members were immune (HR, 0.14-0.25; 95% CI, 0.11-0.27; P < .001).

It increased to 91%-94% when three family members were immune (HR, 0.06-0.09; 95% CI, 0.04-0.10; P < .001) and to 97% with four immune family members (HR, 0.03; 95% CI, 0.02-0.05; P < .001).

“The results were similar for the outcome of COVID-19 infection that was severe enough to warrant a hospital stay,” the authors wrote. They listed as an example that, in three-member families in which two members were immune, the remaining nonimmune family member had an 80% lower risk for hospitalization (HR, 0.20; 95% CI, 0.10-0.43; P < .001).
 

Global implications

Dr. Nordström said the team used the family setting because it was more easily identifiable as a cohort with the national registries and because COVID-19 is spread among people in close contact with each other. The findings have implications for other groups that spend large amounts of time together and for herd immunity, he added.

The findings may be particularly welcome in regions of the world where vaccination rates are very low. The authors noted that most of the global population has not yet been vaccinated and that “it is anticipated that most of the population in low-income countries will be unable to receive a vaccine in 2021, with current vaccination rates suggesting that completely inoculating 70%-85% of the global population may take up to 5 years.”

Jill Foster, MD, a pediatric infectious disease specialist at the University of Minnesota, Minneapolis, said in an interview she agrees that the news could encourage countries that have very low vaccination rates.

This study may help motivate areas with few resources to start small, she said: “Even one is better than zero.”

She added that this news could also help ease the minds of families that have immunocompromised members or in which there are children who are too young to be vaccinated.

With these data, she said, people can see there’s something they can do to help protect a family member.

Dr. Foster said that although it’s intuitive to think that the more vaccinated people there are in a family, the safer people are, “it’s really nice to see the data coming out of such a large dataset.”

The authors acknowledged that a limitation of the study is that, at the time the study was conducted, the Delta variant was uncommon in Sweden. It is therefore unclear whether the findings regarding immunity are still relevant in Sweden and elsewhere now that the Delta strain is dominant.

The authors reported no relevant financial relationships. Dr. Foster has received grant support from Moderna.

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

Schools without mask requirements were three-and-a-half times more likely to have COVID-19 outbreaks than those enforcing mask mandates, according to new Centers for Disease Control and Prevention research.

The study, which focused on 1,000 schools in Arizona’s Maricopa and Pima counties, found that there were 113 COVID-19 outbreaks in schools without mask requirements in the first month of in-person learning. There were 16 outbreaks in schools with mask requirements.

“Masks in schools work to protect our children, to keep them and their school communities safe, and to keep them in school for in-person learning,” CDC Director Rochelle Walensky, MD, said at an Oct. 13 White House briefing.

But, she said, more than 95% of schools across the country had remained open through the end of September, despite 1,800 school closures affecting nearly 1 million students.

Protection for children in school is just one piece of the puzzle, Dr. Walensky said – there must also be COVID-safe practices at home to limit transmission. A CDC study published in October found that children had similar infection rates, compared with adults, confirming there is risk to people of all ages.

“For those children not yet eligible for vaccination, the best protection we can provide them is to make sure everyone around them in the household is vaccinated and to make sure they’re wearing a mask in school and during indoor extracurricular activities,” Dr. Walensky said.

Meanwhile, Pfizer’s vaccine for children ages 5-11 may be approved by early November. The Food and Drug Administration’s Vaccines and Related Biological Products Advisory Committee will meet Oct. 26 to discuss available data, and the CDC’s Advisory Committee on Immunization Practices will meet Nov. 2. A decision is expected soon after.

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

Schools without mask requirements were three-and-a-half times more likely to have COVID-19 outbreaks than those enforcing mask mandates, according to new Centers for Disease Control and Prevention research.

The study, which focused on 1,000 schools in Arizona’s Maricopa and Pima counties, found that there were 113 COVID-19 outbreaks in schools without mask requirements in the first month of in-person learning. There were 16 outbreaks in schools with mask requirements.

“Masks in schools work to protect our children, to keep them and their school communities safe, and to keep them in school for in-person learning,” CDC Director Rochelle Walensky, MD, said at an Oct. 13 White House briefing.

But, she said, more than 95% of schools across the country had remained open through the end of September, despite 1,800 school closures affecting nearly 1 million students.

Protection for children in school is just one piece of the puzzle, Dr. Walensky said – there must also be COVID-safe practices at home to limit transmission. A CDC study published in October found that children had similar infection rates, compared with adults, confirming there is risk to people of all ages.

“For those children not yet eligible for vaccination, the best protection we can provide them is to make sure everyone around them in the household is vaccinated and to make sure they’re wearing a mask in school and during indoor extracurricular activities,” Dr. Walensky said.

Meanwhile, Pfizer’s vaccine for children ages 5-11 may be approved by early November. The Food and Drug Administration’s Vaccines and Related Biological Products Advisory Committee will meet Oct. 26 to discuss available data, and the CDC’s Advisory Committee on Immunization Practices will meet Nov. 2. A decision is expected soon after.

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

Schools without mask requirements were three-and-a-half times more likely to have COVID-19 outbreaks than those enforcing mask mandates, according to new Centers for Disease Control and Prevention research.

The study, which focused on 1,000 schools in Arizona’s Maricopa and Pima counties, found that there were 113 COVID-19 outbreaks in schools without mask requirements in the first month of in-person learning. There were 16 outbreaks in schools with mask requirements.

“Masks in schools work to protect our children, to keep them and their school communities safe, and to keep them in school for in-person learning,” CDC Director Rochelle Walensky, MD, said at an Oct. 13 White House briefing.

But, she said, more than 95% of schools across the country had remained open through the end of September, despite 1,800 school closures affecting nearly 1 million students.

Protection for children in school is just one piece of the puzzle, Dr. Walensky said – there must also be COVID-safe practices at home to limit transmission. A CDC study published in October found that children had similar infection rates, compared with adults, confirming there is risk to people of all ages.

“For those children not yet eligible for vaccination, the best protection we can provide them is to make sure everyone around them in the household is vaccinated and to make sure they’re wearing a mask in school and during indoor extracurricular activities,” Dr. Walensky said.

Meanwhile, Pfizer’s vaccine for children ages 5-11 may be approved by early November. The Food and Drug Administration’s Vaccines and Related Biological Products Advisory Committee will meet Oct. 26 to discuss available data, and the CDC’s Advisory Committee on Immunization Practices will meet Nov. 2. A decision is expected soon after.

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

When 23 frail elderly patients in Norway died in early 2021 shortly after they had received an mRNA-based vaccine against COVID-19, Norwegian health authorities cautioned physicians to conduct more thorough assessments of patients prior to immunization, and launched an investigation into the safety of the BNT162b2 vaccine (Comirnaty; Pfizer-BioNTech).

Now, the results of that investigation and of a subsequent larger study of nursing home residents in Norway have shown no increased risk for short-term mortality following COVID-19 vaccination in the overall population of elderly patients. The new research also showed clear evidence of a survival benefit compared with the unvaccinated population, Anette Hylen Ranhoff, MD, PhD, said at the annual meeting of the European Geriatric Medicine Society, held in a hybrid format in Athens, Greece, and online.

“We found no evidence of increased short-term mortality among vaccinated older individuals, and particularly not among the nursing home patients,” said Dr. Ranhoff, a senior researcher at the Norwegian Institute of Public Health and professor at University of Bergen, Norway. “But we think that this [lower] mortality risk was most likely a sort of ‘healthy-vaccinee’ effect, which means that people who were a bit more healthy were vaccinated, and not those who were the very, very most frail.”

“We have more or less the same data in France about events, with very high rates of vaccination,” said session moderator Athanase Benetos MD, PhD, professor and chairman of geriatric medicine at the University Hospital of Nancy in France, who was not involved in the study.

“In my department, a month after the end of the vaccination and at the same time while the pandemic in the city was going up, we had a 90% decrease in mortality from COVID in the nursing homes,” he told Dr. Ranhoff.
 

Potential risks

Frail elderly patients were not included in clinical trials of COVID-19 vaccines, and although previous studies have shown a low incidence of local or systemic reactions to vaccination among older people, “we think that quite mild adverse events following vaccination could trigger and destabilize a frail person,” Dr. Ranhoff said.

As reported Jan. 15, 2021, in BMJ, investigation by the Norwegian Medicines Agency (NOMA) into 13 of the 23 reported cases concluded that common adverse reactions associated with mRNA vaccines could have contributed to the deaths of some of the frail elderly patients

Steinar Madsen, MD, NOMA medical director, told BMJ “we are not alarmed or worried about this, because these are very rare occurrences and they occurred in very frail patients with very serious disease.”
 

Health authorities investigate

In response to the report and at the request of the Norwegian Public Health Institute and NOMA, Dr. Ranhoff and colleagues investigated the first 100 deaths among nursing-home residents who received the vaccine. The team consisted of three geriatricians and an infectious disease specialist who sees patients in nursing homes.

They looked at each patient’s clinical course before and after vaccination, their health trajectory and life expectancy at the time of vaccination, new symptoms following vaccination, and the time from vaccination to new symptoms and to death.

In addition, the investigators evaluated Clinical Frailty Scale (CFS) scores for each patient. CFS scores range from 1 (very fit) to 9 (terminally ill, with a life expectancy of less than 6 months who are otherwise evidently frail).

The initial investigation found that among 95 evaluable patients, the association between vaccination and death was “probable” in 10, “possible” in 26, and “unlikely” in 59.

The mean time from vaccination to symptoms was 1.4 days in the probable cases, 2.5 days in the possible cases, and 4.7 days in the unlikely cases.

The mean time from vaccination to death was 3.1, 8.3, and 8.2 days, respectively.

In all three categories, the patients had mean CFS scores ranging from 7.6 to 7.9, putting them in the “severely frail” category, defined as people who are completely dependent for personal care but seem stable and not at high risk for dying.

“We have quite many nursing home residents in Norway, 35,000; more than 80% have dementia, and the mean age is 85 years. We know that approximately 45 people die every day in these nursing homes, and their mean age of death is 87.5 years,” Dr. Ranhoff said.
 

Population-wide study

Dr. Ranhoff and colleagues also looked more broadly into the question of potential vaccine-related mortality in the total population of older people in Norway from the day of vaccination to follow-up at 3 weeks.

They conducted a matched cohort study to investigate the relationship between the mRNA SARS-CoV-2 vaccine and overall death among persons aged 65 and older in the general population, and across four groups: patients receiving home-based care, long-term nursing home patients, short-term nursing home patients, and those not receiving health services.

The researchers identified a total of 967,786 residents of Norway aged 65 and over at the start of the country’s vaccination campaign at the end of December, 2020, and they matched vaccinated individuals with unvaccinated persons based on demographic, geographic, and clinical risk group factors.

Dr. Ranhoff showed Kaplan-Meier survival curves for the total population and for each of the health-service states. In all cases there was a clear survival benefit for vaccinated vs. unvaccinated patients. She did not, however, provide specific numbers or hazard ratios for the differences between vaccinated and unvaccinated individuals in each of the comparisons.

The study was supported by the Norwegian Institute of Public Health. Dr. Ranhoff and Dr. Benetos reported no conflicts of interest.

When 23 frail elderly patients in Norway died in early 2021 shortly after they had received an mRNA-based vaccine against COVID-19, Norwegian health authorities cautioned physicians to conduct more thorough assessments of patients prior to immunization, and launched an investigation into the safety of the BNT162b2 vaccine (Comirnaty; Pfizer-BioNTech).

Now, the results of that investigation and of a subsequent larger study of nursing home residents in Norway have shown no increased risk for short-term mortality following COVID-19 vaccination in the overall population of elderly patients. The new research also showed clear evidence of a survival benefit compared with the unvaccinated population, Anette Hylen Ranhoff, MD, PhD, said at the annual meeting of the European Geriatric Medicine Society, held in a hybrid format in Athens, Greece, and online.

“We found no evidence of increased short-term mortality among vaccinated older individuals, and particularly not among the nursing home patients,” said Dr. Ranhoff, a senior researcher at the Norwegian Institute of Public Health and professor at University of Bergen, Norway. “But we think that this [lower] mortality risk was most likely a sort of ‘healthy-vaccinee’ effect, which means that people who were a bit more healthy were vaccinated, and not those who were the very, very most frail.”

“We have more or less the same data in France about events, with very high rates of vaccination,” said session moderator Athanase Benetos MD, PhD, professor and chairman of geriatric medicine at the University Hospital of Nancy in France, who was not involved in the study.

“In my department, a month after the end of the vaccination and at the same time while the pandemic in the city was going up, we had a 90% decrease in mortality from COVID in the nursing homes,” he told Dr. Ranhoff.
 

Potential risks

Frail elderly patients were not included in clinical trials of COVID-19 vaccines, and although previous studies have shown a low incidence of local or systemic reactions to vaccination among older people, “we think that quite mild adverse events following vaccination could trigger and destabilize a frail person,” Dr. Ranhoff said.

As reported Jan. 15, 2021, in BMJ, investigation by the Norwegian Medicines Agency (NOMA) into 13 of the 23 reported cases concluded that common adverse reactions associated with mRNA vaccines could have contributed to the deaths of some of the frail elderly patients

Steinar Madsen, MD, NOMA medical director, told BMJ “we are not alarmed or worried about this, because these are very rare occurrences and they occurred in very frail patients with very serious disease.”
 

Health authorities investigate

In response to the report and at the request of the Norwegian Public Health Institute and NOMA, Dr. Ranhoff and colleagues investigated the first 100 deaths among nursing-home residents who received the vaccine. The team consisted of three geriatricians and an infectious disease specialist who sees patients in nursing homes.

They looked at each patient’s clinical course before and after vaccination, their health trajectory and life expectancy at the time of vaccination, new symptoms following vaccination, and the time from vaccination to new symptoms and to death.

In addition, the investigators evaluated Clinical Frailty Scale (CFS) scores for each patient. CFS scores range from 1 (very fit) to 9 (terminally ill, with a life expectancy of less than 6 months who are otherwise evidently frail).

The initial investigation found that among 95 evaluable patients, the association between vaccination and death was “probable” in 10, “possible” in 26, and “unlikely” in 59.

The mean time from vaccination to symptoms was 1.4 days in the probable cases, 2.5 days in the possible cases, and 4.7 days in the unlikely cases.

The mean time from vaccination to death was 3.1, 8.3, and 8.2 days, respectively.

In all three categories, the patients had mean CFS scores ranging from 7.6 to 7.9, putting them in the “severely frail” category, defined as people who are completely dependent for personal care but seem stable and not at high risk for dying.

“We have quite many nursing home residents in Norway, 35,000; more than 80% have dementia, and the mean age is 85 years. We know that approximately 45 people die every day in these nursing homes, and their mean age of death is 87.5 years,” Dr. Ranhoff said.
 

Population-wide study

Dr. Ranhoff and colleagues also looked more broadly into the question of potential vaccine-related mortality in the total population of older people in Norway from the day of vaccination to follow-up at 3 weeks.

They conducted a matched cohort study to investigate the relationship between the mRNA SARS-CoV-2 vaccine and overall death among persons aged 65 and older in the general population, and across four groups: patients receiving home-based care, long-term nursing home patients, short-term nursing home patients, and those not receiving health services.

The researchers identified a total of 967,786 residents of Norway aged 65 and over at the start of the country’s vaccination campaign at the end of December, 2020, and they matched vaccinated individuals with unvaccinated persons based on demographic, geographic, and clinical risk group factors.

Dr. Ranhoff showed Kaplan-Meier survival curves for the total population and for each of the health-service states. In all cases there was a clear survival benefit for vaccinated vs. unvaccinated patients. She did not, however, provide specific numbers or hazard ratios for the differences between vaccinated and unvaccinated individuals in each of the comparisons.

The study was supported by the Norwegian Institute of Public Health. Dr. Ranhoff and Dr. Benetos reported no conflicts of interest.

When 23 frail elderly patients in Norway died in early 2021 shortly after they had received an mRNA-based vaccine against COVID-19, Norwegian health authorities cautioned physicians to conduct more thorough assessments of patients prior to immunization, and launched an investigation into the safety of the BNT162b2 vaccine (Comirnaty; Pfizer-BioNTech).

Now, the results of that investigation and of a subsequent larger study of nursing home residents in Norway have shown no increased risk for short-term mortality following COVID-19 vaccination in the overall population of elderly patients. The new research also showed clear evidence of a survival benefit compared with the unvaccinated population, Anette Hylen Ranhoff, MD, PhD, said at the annual meeting of the European Geriatric Medicine Society, held in a hybrid format in Athens, Greece, and online.

“We found no evidence of increased short-term mortality among vaccinated older individuals, and particularly not among the nursing home patients,” said Dr. Ranhoff, a senior researcher at the Norwegian Institute of Public Health and professor at University of Bergen, Norway. “But we think that this [lower] mortality risk was most likely a sort of ‘healthy-vaccinee’ effect, which means that people who were a bit more healthy were vaccinated, and not those who were the very, very most frail.”

“We have more or less the same data in France about events, with very high rates of vaccination,” said session moderator Athanase Benetos MD, PhD, professor and chairman of geriatric medicine at the University Hospital of Nancy in France, who was not involved in the study.

“In my department, a month after the end of the vaccination and at the same time while the pandemic in the city was going up, we had a 90% decrease in mortality from COVID in the nursing homes,” he told Dr. Ranhoff.
 

Potential risks

Frail elderly patients were not included in clinical trials of COVID-19 vaccines, and although previous studies have shown a low incidence of local or systemic reactions to vaccination among older people, “we think that quite mild adverse events following vaccination could trigger and destabilize a frail person,” Dr. Ranhoff said.

As reported Jan. 15, 2021, in BMJ, investigation by the Norwegian Medicines Agency (NOMA) into 13 of the 23 reported cases concluded that common adverse reactions associated with mRNA vaccines could have contributed to the deaths of some of the frail elderly patients

Steinar Madsen, MD, NOMA medical director, told BMJ “we are not alarmed or worried about this, because these are very rare occurrences and they occurred in very frail patients with very serious disease.”
 

Health authorities investigate

In response to the report and at the request of the Norwegian Public Health Institute and NOMA, Dr. Ranhoff and colleagues investigated the first 100 deaths among nursing-home residents who received the vaccine. The team consisted of three geriatricians and an infectious disease specialist who sees patients in nursing homes.

They looked at each patient’s clinical course before and after vaccination, their health trajectory and life expectancy at the time of vaccination, new symptoms following vaccination, and the time from vaccination to new symptoms and to death.

In addition, the investigators evaluated Clinical Frailty Scale (CFS) scores for each patient. CFS scores range from 1 (very fit) to 9 (terminally ill, with a life expectancy of less than 6 months who are otherwise evidently frail).

The initial investigation found that among 95 evaluable patients, the association between vaccination and death was “probable” in 10, “possible” in 26, and “unlikely” in 59.

The mean time from vaccination to symptoms was 1.4 days in the probable cases, 2.5 days in the possible cases, and 4.7 days in the unlikely cases.

The mean time from vaccination to death was 3.1, 8.3, and 8.2 days, respectively.

In all three categories, the patients had mean CFS scores ranging from 7.6 to 7.9, putting them in the “severely frail” category, defined as people who are completely dependent for personal care but seem stable and not at high risk for dying.

“We have quite many nursing home residents in Norway, 35,000; more than 80% have dementia, and the mean age is 85 years. We know that approximately 45 people die every day in these nursing homes, and their mean age of death is 87.5 years,” Dr. Ranhoff said.
 

Population-wide study

Dr. Ranhoff and colleagues also looked more broadly into the question of potential vaccine-related mortality in the total population of older people in Norway from the day of vaccination to follow-up at 3 weeks.

They conducted a matched cohort study to investigate the relationship between the mRNA SARS-CoV-2 vaccine and overall death among persons aged 65 and older in the general population, and across four groups: patients receiving home-based care, long-term nursing home patients, short-term nursing home patients, and those not receiving health services.

The researchers identified a total of 967,786 residents of Norway aged 65 and over at the start of the country’s vaccination campaign at the end of December, 2020, and they matched vaccinated individuals with unvaccinated persons based on demographic, geographic, and clinical risk group factors.

Dr. Ranhoff showed Kaplan-Meier survival curves for the total population and for each of the health-service states. In all cases there was a clear survival benefit for vaccinated vs. unvaccinated patients. She did not, however, provide specific numbers or hazard ratios for the differences between vaccinated and unvaccinated individuals in each of the comparisons.

The study was supported by the Norwegian Institute of Public Health. Dr. Ranhoff and Dr. Benetos reported no conflicts of interest.