Rheumatology News

A deep molecular dive into COVID-19 patients found that the presence of autoantibodies in peripheral blood at initial diagnosis was the chief of four risk factors predicting if a patient would experience long COVID.

Other significant early predictors of prolonged COVID symptoms – which the researchers called postacute sequelae – were having type 2 diabetes, SARS-CoV-2 RNAemia, and Epstein-Barr virus (EBV) viremia, Yapeng Su, PhD, of the Institute for Systems Biology (ISB) in Seattle, and colleagues wrote in Cell.

Having EBV viremia suggested that latent EBV has been reactivated, the authors noted.

“The most important postacute sequelae [that is conditions that are consequences of a disease] of COVID is the presence of autoantibodies,” James R. Heath, PhD, president of ISB and a bioengineering professor at the University of Washington, Seattle, said in an interview. “It’s about two times more important than the others.”

Dr. Heath and coauthors said early detection of this and other variables could prompt earlier aggressive treatment in patients susceptible to long COVID and ward off lingering symptoms.

“These predictive measures of long COVID can also help to better inform patients of their possible disease course,” study coauthor Daniel G. Chen, an undergraduate researcher at ISB, said in an interview. “We were also able to partially resolve the immunological underpinnings of some postacute sequelae of COVID in a way that suggested potential therapies, and the timing of those therapies.”

For example, he continued, the use of antivirals very early in the infectious course may mitigate the later development of long COVID. “This will, of course, have to be explored in an appropriately designed clinical trial.

“We also identified biomarkers of certain types of long COVID, such as neurological sequelae. Those biomarkers can help define the condition, which is a first step towards developing treatments.”

Study findings

With COVID patients monitored for 2 or 3 months, the study findings of the international “multiomic profiling” analysis include:

• Subclinical patient autoantibodies that reduce anti–SARS-CoV-2 antibodies suggest there is immune dysregulation during COVID-19 infection.
• Reactivation of latent other viruses during initial infection may be contributing to long COVID.
• Gastrointestinal postacute sequelae of COVID presents with a unique postacute expansion of cytotoxic T cells.
• SARS-CoV-2–specific and cytomegalovirus-specific CD8+ T cells displayed unique dynamics during recovery from infection.

According to the authors, as many as 69% of COVID-19 patients suffer from long COVID – a range of new, recurrent, or ongoing problems 4 or more weeks following initial SARS-CoV-2 infection. These may include memory loss, gastrointestinal distress, fatigue, anosmia, and shortness of breath.

Long COVID has been associated with acute disease severity, and is suspected to be related to autoimmune factors and unresolved viral fragments, according to the paper.
 

Research methods

The international study did a deep and detailed dive into multiple molecular markers of long COVID. It enrolled 209 COVID-19 patients with varying degrees of disease severity and matched them to 457 healthy controls. The researchers’ goal was to identify discrete and quantifiable long COVID factors and guide possible preemptive treatment. 

Patients were assessed at three time points: at initial diagnosis, during the acute disease phase about a week later, and again 2 to 3 months post onset of symptoms after recovery from the acute phase of COVID. At the third assessment, some patients had lingering symptoms such as fatigue (52% ), cough (25%), and loss of taste or sense of smell (18%).

Blood draws were analyzed for autoantibodies and SARS-CoV-2–specific antibodies, global plasma proteomic and metabolomic profiles, and single-cell multiomic characterizations of peripheral blood mononuclear cells.

Each blood draw was paired with nasal-swab and plasma measurements of SARS-CoV-2 viral load and the data sets were integrated with electronic health records and self-reported patient symptoms to guide the interpretation of the molecular signatures of long COVID.
 

Author conclusions

The authors found an association between T2 hyperinflammation and long COVID–anticipating autoantibodies. This association further implies that hyperinflammation-controlling therapies in the acute stage of COVID may influence whether a patient experiences long COVID. “However, the detailed timing and context of these therapies matter, and, thus, future well-controlled studies will be needed to test these and other therapeutic implications,” Dr. Su and colleagues wrote.

Moreover, the negative correlations between anti–SARS-CoV-2 IgG and certain autoantibodies may suggest that patients with elevated autoantibody levels are more susceptible to breakthrough infections, the authors said.

“Many patients with high autoantibodies simultaneously have low protective antibodies that neutralize SARS-CoV-2, and that’s going to make them more susceptible to breakthrough infections,” Mr. Chen explained.*

“Detectability of most [long COVID-19 factors] at COVID diagnosis emphasizes the importance of early disease measurements for understanding emergent chronic conditions and suggests [long COVID] treatment strategies,” they wrote.

According to Mr. Chen, there are clear similarities in underlying immunobiology between patients with COVID autoantibodies and patients with systemic lupus erythematosus.

“These findings are also helping us frame our thinking around other chronic autoimmune conditions, such as postacute Lyme syndrome, for example,” said Dr. Heath.

The bottom line, said Mr. Chen, is that measuring early long COVID indicators may result in preventive treatments. “An example is the cortisol deficiency we see in certain long COVID patients. There are known treatments such as cortisol replacement therapy that should be explored for this group.”

Outside expert’s take on findings

Commenting on the study, Sherry Hsiang-Yi Chou, MD, who was not involved in the research, called the study a very important first step in understanding the path of this complex phenomenon and perhaps other conditions with long-term side effects.

“The researchers have done huge amount of innovative scientific work. They’ve shown the DNA signature of how our bodies respond to this disease,” said Dr. Chou, who is chief of the division of neurocritical care at Northwestern Medicine in Chicago.

“This type of research will help us scientifically understand and differentiate the various syndromes within long COVID. It will help identify who’s at risk for different aspects of this syndrome and lead to following them for longer periods in clinical trials,” she added.

The authors acknowledged that lengthier studies in larger cohorts were needed to see which patients will develop long-term chronic postacute sequelae of COVID.

This research was supported by the Wilke Family Foundation, the Parker Institute for Cancer Immunotherapy, Merck, and the Biomedical Advanced Research and Development Authority. Other support came from the National Institutes of Health, the Bill and Melinda Gates Foundation, Saint John’s Cancer Center, Fred Hutchinson Cancer Research Center, and the European Union’s Horizon 2020 research and innovation program. Dr. Heath is a cofounder of Pact Pharma. He and several coauthors disclosed various ties to multiple private-sector companies. Mr. Chen and Dr. Chou had no competing interests.

*Correction, 1/28: An earlier version of this story misidentified Daniel G. Chen, an undergraduate researcher at ISB.

A deep molecular dive into COVID-19 patients found that the presence of autoantibodies in peripheral blood at initial diagnosis was the chief of four risk factors predicting if a patient would experience long COVID.

Other significant early predictors of prolonged COVID symptoms – which the researchers called postacute sequelae – were having type 2 diabetes, SARS-CoV-2 RNAemia, and Epstein-Barr virus (EBV) viremia, Yapeng Su, PhD, of the Institute for Systems Biology (ISB) in Seattle, and colleagues wrote in Cell.

Having EBV viremia suggested that latent EBV has been reactivated, the authors noted.

“The most important postacute sequelae [that is conditions that are consequences of a disease] of COVID is the presence of autoantibodies,” James R. Heath, PhD, president of ISB and a bioengineering professor at the University of Washington, Seattle, said in an interview. “It’s about two times more important than the others.”

Dr. Heath and coauthors said early detection of this and other variables could prompt earlier aggressive treatment in patients susceptible to long COVID and ward off lingering symptoms.

“These predictive measures of long COVID can also help to better inform patients of their possible disease course,” study coauthor Daniel G. Chen, an undergraduate researcher at ISB, said in an interview. “We were also able to partially resolve the immunological underpinnings of some postacute sequelae of COVID in a way that suggested potential therapies, and the timing of those therapies.”

For example, he continued, the use of antivirals very early in the infectious course may mitigate the later development of long COVID. “This will, of course, have to be explored in an appropriately designed clinical trial.

“We also identified biomarkers of certain types of long COVID, such as neurological sequelae. Those biomarkers can help define the condition, which is a first step towards developing treatments.”

Study findings

With COVID patients monitored for 2 or 3 months, the study findings of the international “multiomic profiling” analysis include:

• Subclinical patient autoantibodies that reduce anti–SARS-CoV-2 antibodies suggest there is immune dysregulation during COVID-19 infection.
• Reactivation of latent other viruses during initial infection may be contributing to long COVID.
• Gastrointestinal postacute sequelae of COVID presents with a unique postacute expansion of cytotoxic T cells.
• SARS-CoV-2–specific and cytomegalovirus-specific CD8+ T cells displayed unique dynamics during recovery from infection.

According to the authors, as many as 69% of COVID-19 patients suffer from long COVID – a range of new, recurrent, or ongoing problems 4 or more weeks following initial SARS-CoV-2 infection. These may include memory loss, gastrointestinal distress, fatigue, anosmia, and shortness of breath.

Long COVID has been associated with acute disease severity, and is suspected to be related to autoimmune factors and unresolved viral fragments, according to the paper.
 

Research methods

The international study did a deep and detailed dive into multiple molecular markers of long COVID. It enrolled 209 COVID-19 patients with varying degrees of disease severity and matched them to 457 healthy controls. The researchers’ goal was to identify discrete and quantifiable long COVID factors and guide possible preemptive treatment. 

Patients were assessed at three time points: at initial diagnosis, during the acute disease phase about a week later, and again 2 to 3 months post onset of symptoms after recovery from the acute phase of COVID. At the third assessment, some patients had lingering symptoms such as fatigue (52% ), cough (25%), and loss of taste or sense of smell (18%).

Blood draws were analyzed for autoantibodies and SARS-CoV-2–specific antibodies, global plasma proteomic and metabolomic profiles, and single-cell multiomic characterizations of peripheral blood mononuclear cells.

Each blood draw was paired with nasal-swab and plasma measurements of SARS-CoV-2 viral load and the data sets were integrated with electronic health records and self-reported patient symptoms to guide the interpretation of the molecular signatures of long COVID.
 

Author conclusions

The authors found an association between T2 hyperinflammation and long COVID–anticipating autoantibodies. This association further implies that hyperinflammation-controlling therapies in the acute stage of COVID may influence whether a patient experiences long COVID. “However, the detailed timing and context of these therapies matter, and, thus, future well-controlled studies will be needed to test these and other therapeutic implications,” Dr. Su and colleagues wrote.

Moreover, the negative correlations between anti–SARS-CoV-2 IgG and certain autoantibodies may suggest that patients with elevated autoantibody levels are more susceptible to breakthrough infections, the authors said.

“Many patients with high autoantibodies simultaneously have low protective antibodies that neutralize SARS-CoV-2, and that’s going to make them more susceptible to breakthrough infections,” Mr. Chen explained.*

“Detectability of most [long COVID-19 factors] at COVID diagnosis emphasizes the importance of early disease measurements for understanding emergent chronic conditions and suggests [long COVID] treatment strategies,” they wrote.

According to Mr. Chen, there are clear similarities in underlying immunobiology between patients with COVID autoantibodies and patients with systemic lupus erythematosus.

“These findings are also helping us frame our thinking around other chronic autoimmune conditions, such as postacute Lyme syndrome, for example,” said Dr. Heath.

The bottom line, said Mr. Chen, is that measuring early long COVID indicators may result in preventive treatments. “An example is the cortisol deficiency we see in certain long COVID patients. There are known treatments such as cortisol replacement therapy that should be explored for this group.”

Outside expert’s take on findings

Commenting on the study, Sherry Hsiang-Yi Chou, MD, who was not involved in the research, called the study a very important first step in understanding the path of this complex phenomenon and perhaps other conditions with long-term side effects.

“The researchers have done huge amount of innovative scientific work. They’ve shown the DNA signature of how our bodies respond to this disease,” said Dr. Chou, who is chief of the division of neurocritical care at Northwestern Medicine in Chicago.

“This type of research will help us scientifically understand and differentiate the various syndromes within long COVID. It will help identify who’s at risk for different aspects of this syndrome and lead to following them for longer periods in clinical trials,” she added.

The authors acknowledged that lengthier studies in larger cohorts were needed to see which patients will develop long-term chronic postacute sequelae of COVID.

This research was supported by the Wilke Family Foundation, the Parker Institute for Cancer Immunotherapy, Merck, and the Biomedical Advanced Research and Development Authority. Other support came from the National Institutes of Health, the Bill and Melinda Gates Foundation, Saint John’s Cancer Center, Fred Hutchinson Cancer Research Center, and the European Union’s Horizon 2020 research and innovation program. Dr. Heath is a cofounder of Pact Pharma. He and several coauthors disclosed various ties to multiple private-sector companies. Mr. Chen and Dr. Chou had no competing interests.

*Correction, 1/28: An earlier version of this story misidentified Daniel G. Chen, an undergraduate researcher at ISB.

A deep molecular dive into COVID-19 patients found that the presence of autoantibodies in peripheral blood at initial diagnosis was the chief of four risk factors predicting if a patient would experience long COVID.

Other significant early predictors of prolonged COVID symptoms – which the researchers called postacute sequelae – were having type 2 diabetes, SARS-CoV-2 RNAemia, and Epstein-Barr virus (EBV) viremia, Yapeng Su, PhD, of the Institute for Systems Biology (ISB) in Seattle, and colleagues wrote in Cell.

Having EBV viremia suggested that latent EBV has been reactivated, the authors noted.

“The most important postacute sequelae [that is conditions that are consequences of a disease] of COVID is the presence of autoantibodies,” James R. Heath, PhD, president of ISB and a bioengineering professor at the University of Washington, Seattle, said in an interview. “It’s about two times more important than the others.”

Dr. Heath and coauthors said early detection of this and other variables could prompt earlier aggressive treatment in patients susceptible to long COVID and ward off lingering symptoms.

“These predictive measures of long COVID can also help to better inform patients of their possible disease course,” study coauthor Daniel G. Chen, an undergraduate researcher at ISB, said in an interview. “We were also able to partially resolve the immunological underpinnings of some postacute sequelae of COVID in a way that suggested potential therapies, and the timing of those therapies.”

For example, he continued, the use of antivirals very early in the infectious course may mitigate the later development of long COVID. “This will, of course, have to be explored in an appropriately designed clinical trial.

“We also identified biomarkers of certain types of long COVID, such as neurological sequelae. Those biomarkers can help define the condition, which is a first step towards developing treatments.”

Study findings

With COVID patients monitored for 2 or 3 months, the study findings of the international “multiomic profiling” analysis include:

• Subclinical patient autoantibodies that reduce anti–SARS-CoV-2 antibodies suggest there is immune dysregulation during COVID-19 infection.
• Reactivation of latent other viruses during initial infection may be contributing to long COVID.
• Gastrointestinal postacute sequelae of COVID presents with a unique postacute expansion of cytotoxic T cells.
• SARS-CoV-2–specific and cytomegalovirus-specific CD8+ T cells displayed unique dynamics during recovery from infection.

According to the authors, as many as 69% of COVID-19 patients suffer from long COVID – a range of new, recurrent, or ongoing problems 4 or more weeks following initial SARS-CoV-2 infection. These may include memory loss, gastrointestinal distress, fatigue, anosmia, and shortness of breath.

Long COVID has been associated with acute disease severity, and is suspected to be related to autoimmune factors and unresolved viral fragments, according to the paper.
 

Research methods

The international study did a deep and detailed dive into multiple molecular markers of long COVID. It enrolled 209 COVID-19 patients with varying degrees of disease severity and matched them to 457 healthy controls. The researchers’ goal was to identify discrete and quantifiable long COVID factors and guide possible preemptive treatment. 

Patients were assessed at three time points: at initial diagnosis, during the acute disease phase about a week later, and again 2 to 3 months post onset of symptoms after recovery from the acute phase of COVID. At the third assessment, some patients had lingering symptoms such as fatigue (52% ), cough (25%), and loss of taste or sense of smell (18%).

Blood draws were analyzed for autoantibodies and SARS-CoV-2–specific antibodies, global plasma proteomic and metabolomic profiles, and single-cell multiomic characterizations of peripheral blood mononuclear cells.

Each blood draw was paired with nasal-swab and plasma measurements of SARS-CoV-2 viral load and the data sets were integrated with electronic health records and self-reported patient symptoms to guide the interpretation of the molecular signatures of long COVID.
 

Author conclusions

The authors found an association between T2 hyperinflammation and long COVID–anticipating autoantibodies. This association further implies that hyperinflammation-controlling therapies in the acute stage of COVID may influence whether a patient experiences long COVID. “However, the detailed timing and context of these therapies matter, and, thus, future well-controlled studies will be needed to test these and other therapeutic implications,” Dr. Su and colleagues wrote.

Moreover, the negative correlations between anti–SARS-CoV-2 IgG and certain autoantibodies may suggest that patients with elevated autoantibody levels are more susceptible to breakthrough infections, the authors said.

“Many patients with high autoantibodies simultaneously have low protective antibodies that neutralize SARS-CoV-2, and that’s going to make them more susceptible to breakthrough infections,” Mr. Chen explained.*

“Detectability of most [long COVID-19 factors] at COVID diagnosis emphasizes the importance of early disease measurements for understanding emergent chronic conditions and suggests [long COVID] treatment strategies,” they wrote.

According to Mr. Chen, there are clear similarities in underlying immunobiology between patients with COVID autoantibodies and patients with systemic lupus erythematosus.

“These findings are also helping us frame our thinking around other chronic autoimmune conditions, such as postacute Lyme syndrome, for example,” said Dr. Heath.

The bottom line, said Mr. Chen, is that measuring early long COVID indicators may result in preventive treatments. “An example is the cortisol deficiency we see in certain long COVID patients. There are known treatments such as cortisol replacement therapy that should be explored for this group.”

Outside expert’s take on findings

Commenting on the study, Sherry Hsiang-Yi Chou, MD, who was not involved in the research, called the study a very important first step in understanding the path of this complex phenomenon and perhaps other conditions with long-term side effects.

“The researchers have done huge amount of innovative scientific work. They’ve shown the DNA signature of how our bodies respond to this disease,” said Dr. Chou, who is chief of the division of neurocritical care at Northwestern Medicine in Chicago.

“This type of research will help us scientifically understand and differentiate the various syndromes within long COVID. It will help identify who’s at risk for different aspects of this syndrome and lead to following them for longer periods in clinical trials,” she added.

The authors acknowledged that lengthier studies in larger cohorts were needed to see which patients will develop long-term chronic postacute sequelae of COVID.

This research was supported by the Wilke Family Foundation, the Parker Institute for Cancer Immunotherapy, Merck, and the Biomedical Advanced Research and Development Authority. Other support came from the National Institutes of Health, the Bill and Melinda Gates Foundation, Saint John’s Cancer Center, Fred Hutchinson Cancer Research Center, and the European Union’s Horizon 2020 research and innovation program. Dr. Heath is a cofounder of Pact Pharma. He and several coauthors disclosed various ties to multiple private-sector companies. Mr. Chen and Dr. Chou had no competing interests.

*Correction, 1/28: An earlier version of this story misidentified Daniel G. Chen, an undergraduate researcher at ISB.

Over the period of 1 year, secukinumab 300 mg every 2 weeks demonstrated superior efficacy compared with secukinumab 300 mg every 4 weeks in overweight patients with moderate to severe plaque psoriasis, results from a multicenter, double-blind, parallel-group trial showed.

The more frequent dosing was also associated with comparable safety, consistent with the established secukinumab safety profile.

“Weight may have an impact on pharmacokinetics and, therefore, on the clinical outcome of biologic treatment for psoriasis,” Matthias Augustin, MD, and colleagues wrote in the study, published recently in the British Journal of Dermatology. “Dose optimization may be highly beneficial for patients with higher body weight,” they noted, adding that their study supports previous study findings and pharmacokinetic/pharmacodynamic modelling data, showing that secukinumab dosed every 2 weeks “leads to a clinically and statistically significant advantage in PASI 90 response,” compared with standard dosing every 4 weeks in patients who weight 90 kg (about 198 pounds) or more, after 16 weeks of treatment, which was maintained until week 52.

For the study, Dr. Augustin, of the Institute for Health Services Research in Dermatology and Nursing at University Medical Center Hamburg-Eppendorf (Germany), and colleagues randomized 331 patients with moderate to severe chronic plaque psoriasis who weighed 90 kg or more to receive secukinumab 300 mg every 2 weeks, or secukinumab 300 mg every 4 weeks. The mean age of the patients was 47 years, 75% were male, 92% were White, and their mean body weight was 111.1 kg, with a mean body mass index of 36.1 kg/m².

Patients who did not achieve a Psoriasis Area and Severity Index (PASI) 90 at week 16 on the monthly regimen (Q4W) either remained on that regimen or were up-titrated to dosing every 2 weeks (Q2W). Of the 331 patients, 165 received Q2W dosing and 166 received Q4W dosing. The researchers found that, at 16 weeks, patients in the Q2W dosing group had significantly higher PASI 90 responses, compared with those in the Q4W group (73.2% vs. 55.5%, respectively; P = .0003; odds ratio estimate, 2.3).

At 52 weeks, a greater proportion of patients in the Q2W group maintained responses to several outcome measures, compared with those in the Q4W group, including PASI 75 (88.9% vs. 74.8%), PASI 90 (76.4% vs. 52.4%), and PASI 100 (46.7% vs. 27.3%) scores; Investigator’s Global Assessment score of 0 or 1 (75.9% vs. 55.6%); and Dermatology Life Quality Index scores of 0 or 1 (66.1% vs. 48.8%).

In addition, those who had not had a PASI 90 response at week 16 who were up-titrated to Q2W dosing demonstrated higher efficacy responses at week 32, compared with those who remained on the Q4W regimen, with PASI 90 scores of 37.7% versus 16.5%, respectively.

Both regimens were well-tolerated, consistent with the known secukinumab safety profile; safety was comparable in the treatment arms, and there was “no clear dose-response relationship seen” for the incidence of overall adverse events, serious AEs, and AEs leading to discontinuation of the study treatment, “or AEs related to the identified risks” of infections, hypersensitivity, neutropenia and potential risk of major adverse cardiovascular events, the authors wrote.

“Despite more frequent dosing, the incidence of Candida infections was numerically lower in the Q2W group versus the Q4W group,” although there were not many cases, three patients versus six patients, respectively.

 

Need for individualized treatment

“Despite a decades-long revolution in development of highly efficacious biologic treatments for psoriasis, we are only in the early stages of developing personalized clinical approaches,” said Raj Chovatiya, MD, PhD, a dermatologist at Northwestern University, Chicago, who was asked to comment on the study. “The need for individualized treatment in psoriasis is very real; not every patient may respond to therapy in the same way. Obesity is one important comorbidity of psoriasis, and increased body mass index may be associated with variable treatment outcomes with systemic therapy.”

The data from this study, he added, “suggest that dose optimization may be an important strategy to enhance psoriasis clearance in patients with suboptimal treatment outcomes on standard dosing, including those with increased weight. Future studies should examine optimal regimen of biologic therapy across a variety of patient factors.”

The study was funded by Novartis, the manufacturer of secukinumab (Cosentyx); several authors were company employees. Dr. Augustin disclosed that he has served as a consultant for or has been a paid speaker for clinical trials sponsored by companies that manufacture drugs used for the treatment of psoriasis, including AbbVie, Almirall, Amgen, Biogen, Boehringer Ingelheim, Celgene, Centocor, Eli Lilly, GlaxoSmithKline, Janssen-Cilag, LEO Pharma, Medac, Merck, MSD, Novartis, Pfizer, UCB, and Xenoport. Dr. Chovatiya disclosed that he is a consultant to, a speaker for, and/or a member of the advisory board for AbbVie, Arcutis, Arena, Incyte, Pfizer, Regeneron, and Sanofi Genzyme.

Over the period of 1 year, secukinumab 300 mg every 2 weeks demonstrated superior efficacy compared with secukinumab 300 mg every 4 weeks in overweight patients with moderate to severe plaque psoriasis, results from a multicenter, double-blind, parallel-group trial showed.

The more frequent dosing was also associated with comparable safety, consistent with the established secukinumab safety profile.

“Weight may have an impact on pharmacokinetics and, therefore, on the clinical outcome of biologic treatment for psoriasis,” Matthias Augustin, MD, and colleagues wrote in the study, published recently in the British Journal of Dermatology. “Dose optimization may be highly beneficial for patients with higher body weight,” they noted, adding that their study supports previous study findings and pharmacokinetic/pharmacodynamic modelling data, showing that secukinumab dosed every 2 weeks “leads to a clinically and statistically significant advantage in PASI 90 response,” compared with standard dosing every 4 weeks in patients who weight 90 kg (about 198 pounds) or more, after 16 weeks of treatment, which was maintained until week 52.

For the study, Dr. Augustin, of the Institute for Health Services Research in Dermatology and Nursing at University Medical Center Hamburg-Eppendorf (Germany), and colleagues randomized 331 patients with moderate to severe chronic plaque psoriasis who weighed 90 kg or more to receive secukinumab 300 mg every 2 weeks, or secukinumab 300 mg every 4 weeks. The mean age of the patients was 47 years, 75% were male, 92% were White, and their mean body weight was 111.1 kg, with a mean body mass index of 36.1 kg/m².

Patients who did not achieve a Psoriasis Area and Severity Index (PASI) 90 at week 16 on the monthly regimen (Q4W) either remained on that regimen or were up-titrated to dosing every 2 weeks (Q2W). Of the 331 patients, 165 received Q2W dosing and 166 received Q4W dosing. The researchers found that, at 16 weeks, patients in the Q2W dosing group had significantly higher PASI 90 responses, compared with those in the Q4W group (73.2% vs. 55.5%, respectively; P = .0003; odds ratio estimate, 2.3).

At 52 weeks, a greater proportion of patients in the Q2W group maintained responses to several outcome measures, compared with those in the Q4W group, including PASI 75 (88.9% vs. 74.8%), PASI 90 (76.4% vs. 52.4%), and PASI 100 (46.7% vs. 27.3%) scores; Investigator’s Global Assessment score of 0 or 1 (75.9% vs. 55.6%); and Dermatology Life Quality Index scores of 0 or 1 (66.1% vs. 48.8%).

In addition, those who had not had a PASI 90 response at week 16 who were up-titrated to Q2W dosing demonstrated higher efficacy responses at week 32, compared with those who remained on the Q4W regimen, with PASI 90 scores of 37.7% versus 16.5%, respectively.

Both regimens were well-tolerated, consistent with the known secukinumab safety profile; safety was comparable in the treatment arms, and there was “no clear dose-response relationship seen” for the incidence of overall adverse events, serious AEs, and AEs leading to discontinuation of the study treatment, “or AEs related to the identified risks” of infections, hypersensitivity, neutropenia and potential risk of major adverse cardiovascular events, the authors wrote.

“Despite more frequent dosing, the incidence of Candida infections was numerically lower in the Q2W group versus the Q4W group,” although there were not many cases, three patients versus six patients, respectively.

 

Need for individualized treatment

“Despite a decades-long revolution in development of highly efficacious biologic treatments for psoriasis, we are only in the early stages of developing personalized clinical approaches,” said Raj Chovatiya, MD, PhD, a dermatologist at Northwestern University, Chicago, who was asked to comment on the study. “The need for individualized treatment in psoriasis is very real; not every patient may respond to therapy in the same way. Obesity is one important comorbidity of psoriasis, and increased body mass index may be associated with variable treatment outcomes with systemic therapy.”

The data from this study, he added, “suggest that dose optimization may be an important strategy to enhance psoriasis clearance in patients with suboptimal treatment outcomes on standard dosing, including those with increased weight. Future studies should examine optimal regimen of biologic therapy across a variety of patient factors.”

The study was funded by Novartis, the manufacturer of secukinumab (Cosentyx); several authors were company employees. Dr. Augustin disclosed that he has served as a consultant for or has been a paid speaker for clinical trials sponsored by companies that manufacture drugs used for the treatment of psoriasis, including AbbVie, Almirall, Amgen, Biogen, Boehringer Ingelheim, Celgene, Centocor, Eli Lilly, GlaxoSmithKline, Janssen-Cilag, LEO Pharma, Medac, Merck, MSD, Novartis, Pfizer, UCB, and Xenoport. Dr. Chovatiya disclosed that he is a consultant to, a speaker for, and/or a member of the advisory board for AbbVie, Arcutis, Arena, Incyte, Pfizer, Regeneron, and Sanofi Genzyme.

Over the period of 1 year, secukinumab 300 mg every 2 weeks demonstrated superior efficacy compared with secukinumab 300 mg every 4 weeks in overweight patients with moderate to severe plaque psoriasis, results from a multicenter, double-blind, parallel-group trial showed.

The more frequent dosing was also associated with comparable safety, consistent with the established secukinumab safety profile.

“Weight may have an impact on pharmacokinetics and, therefore, on the clinical outcome of biologic treatment for psoriasis,” Matthias Augustin, MD, and colleagues wrote in the study, published recently in the British Journal of Dermatology. “Dose optimization may be highly beneficial for patients with higher body weight,” they noted, adding that their study supports previous study findings and pharmacokinetic/pharmacodynamic modelling data, showing that secukinumab dosed every 2 weeks “leads to a clinically and statistically significant advantage in PASI 90 response,” compared with standard dosing every 4 weeks in patients who weight 90 kg (about 198 pounds) or more, after 16 weeks of treatment, which was maintained until week 52.

For the study, Dr. Augustin, of the Institute for Health Services Research in Dermatology and Nursing at University Medical Center Hamburg-Eppendorf (Germany), and colleagues randomized 331 patients with moderate to severe chronic plaque psoriasis who weighed 90 kg or more to receive secukinumab 300 mg every 2 weeks, or secukinumab 300 mg every 4 weeks. The mean age of the patients was 47 years, 75% were male, 92% were White, and their mean body weight was 111.1 kg, with a mean body mass index of 36.1 kg/m².

Patients who did not achieve a Psoriasis Area and Severity Index (PASI) 90 at week 16 on the monthly regimen (Q4W) either remained on that regimen or were up-titrated to dosing every 2 weeks (Q2W). Of the 331 patients, 165 received Q2W dosing and 166 received Q4W dosing. The researchers found that, at 16 weeks, patients in the Q2W dosing group had significantly higher PASI 90 responses, compared with those in the Q4W group (73.2% vs. 55.5%, respectively; P = .0003; odds ratio estimate, 2.3).

At 52 weeks, a greater proportion of patients in the Q2W group maintained responses to several outcome measures, compared with those in the Q4W group, including PASI 75 (88.9% vs. 74.8%), PASI 90 (76.4% vs. 52.4%), and PASI 100 (46.7% vs. 27.3%) scores; Investigator’s Global Assessment score of 0 or 1 (75.9% vs. 55.6%); and Dermatology Life Quality Index scores of 0 or 1 (66.1% vs. 48.8%).

In addition, those who had not had a PASI 90 response at week 16 who were up-titrated to Q2W dosing demonstrated higher efficacy responses at week 32, compared with those who remained on the Q4W regimen, with PASI 90 scores of 37.7% versus 16.5%, respectively.

Both regimens were well-tolerated, consistent with the known secukinumab safety profile; safety was comparable in the treatment arms, and there was “no clear dose-response relationship seen” for the incidence of overall adverse events, serious AEs, and AEs leading to discontinuation of the study treatment, “or AEs related to the identified risks” of infections, hypersensitivity, neutropenia and potential risk of major adverse cardiovascular events, the authors wrote.

“Despite more frequent dosing, the incidence of Candida infections was numerically lower in the Q2W group versus the Q4W group,” although there were not many cases, three patients versus six patients, respectively.

 

Need for individualized treatment

“Despite a decades-long revolution in development of highly efficacious biologic treatments for psoriasis, we are only in the early stages of developing personalized clinical approaches,” said Raj Chovatiya, MD, PhD, a dermatologist at Northwestern University, Chicago, who was asked to comment on the study. “The need for individualized treatment in psoriasis is very real; not every patient may respond to therapy in the same way. Obesity is one important comorbidity of psoriasis, and increased body mass index may be associated with variable treatment outcomes with systemic therapy.”

The data from this study, he added, “suggest that dose optimization may be an important strategy to enhance psoriasis clearance in patients with suboptimal treatment outcomes on standard dosing, including those with increased weight. Future studies should examine optimal regimen of biologic therapy across a variety of patient factors.”

The study was funded by Novartis, the manufacturer of secukinumab (Cosentyx); several authors were company employees. Dr. Augustin disclosed that he has served as a consultant for or has been a paid speaker for clinical trials sponsored by companies that manufacture drugs used for the treatment of psoriasis, including AbbVie, Almirall, Amgen, Biogen, Boehringer Ingelheim, Celgene, Centocor, Eli Lilly, GlaxoSmithKline, Janssen-Cilag, LEO Pharma, Medac, Merck, MSD, Novartis, Pfizer, UCB, and Xenoport. Dr. Chovatiya disclosed that he is a consultant to, a speaker for, and/or a member of the advisory board for AbbVie, Arcutis, Arena, Incyte, Pfizer, Regeneron, and Sanofi Genzyme.

Allopurinol treatment is not associated with increased mortality in patients with gout and chronic kidney disease even at 5 years after starting treatment, a study has found.

Around one in five patients with gout also have chronic kidney disease, and previous research suggests that hyperuricemia is itself a contributor to renal disease, which is why there has been interest in the use of serum urate–lowering medication in patients with both conditions.

Since the publication of two earlier randomized controlled trials suggested a twofold increase in mortality among patients with renal disease who were treated with allopurinol in an attempt to slow progression, there has been wariness about the drug in patients with compromised renal function.

©joloei/Thinkstock

In a study published in Annals of Internal Medicine, Jie Wei, PhD, of Xiangya Hospital at Central South University in Changsha, China, and coauthors report the results of their retrospective, population-based study of 5,277 adults aged 40 and older with gout and moderate to severe chronic kidney disease who were initiated on allopurinol and 5,277 matched individuals not on allopurinol.

At 5 years after the patients started allopurinol, the study found that mortality was a statistically significant 15% lower (hazard ratio, 0.85; 95% confidence interval, 0.77-0.93) among those on allopurinol, compared with those not taking the drug. The rate was 4.9 deaths per 100 person-years among those on allopurinol, compared with 5.8 among those not taking it.

The researchers also created two simulated randomized clinical trials from the data for initiators of allopurinol, replicating each initiator twice. The first trial assigned patient replicates either to achieving a target serum urate level of less than 0.36 mmol/L within a year or not achieving it. The second assigned patient replicates to either an allopurinol dose-escalation group or no dose escalation.

For the target serum urate level study, 1,484 achieved the target, and this was associated with a 13% lower hazard ratio for mortality that just missed statistical significance (HR, 0.87; 95% confidence interval, 0.75-1.01).

In the dose-escalation study, there were 773 participants who increased their dose of allopurinol in the first year after initiation – from a median of 100 mg/day to a median final dose of 300 mg/day – and 2,923 who didn’t. Those who escalated their dose had a nonsignificant 12% lower risk of mortality (HR, 0.88; 95% CI, 0.73-1.07), compared with those who didn’t.

The authors suggest that this could be the result of confounding, as patients who achieved target serum urate levels may have been of better health generally than those who didn’t, which could also have contributed to lower mortality.

Coauthor of the study Yuqing Zhang, DSc, of Massachusetts General Hospital and Harvard Medical School, Boston, said there had previously been a theory that allopurinol could protect against progression of renal disease. However, the two randomized, controlled trials in patients with chronic kidney disease but not gout published in 2020 suggested that allopurinol was instead associated with a doubling of mortality in this group.

“This study really shows convincing evidence that among gout patients with renal disease, allopurinol does not increase mortality,” Dr. Zhang told this news organization. He suggested the reason that the earlier studies had found higher mortality among patients on allopurinol was because those patients did not have gout. Given that gout can increase mortality, treating it effectively with allopurinol may therefore reduce mortality even in patients with concurrent chronic kidney disease.

Commenting on the study, Angelo Gaffo, MD, from the Birmingham VA Medical Center and the division of rheumatology at the University of Alabama at Birmingham, said that, while there had been data suggesting increased mortality, the findings from this “very well-done” study were reassuring and even suggested a possible decrease in mortality associated with allopurinol.

“I wouldn’t scream it out loud because it needs confirmation, but it’s something also that we have a sense that could be true,” he said.

Dr. Gaffo noted that patients treated with allopurinol tended to be those with fewer comorbidities. “Patients who have a lot of comorbidities probably are less likely to have their dose of allopurinol started or increased because of some concerns that practitioners may have about putting them on another medicine or increasing the dose of that medicine,” he said.

He also stressed that the findings still need replication in other large database studies, given that a prospective, randomized clinical trial addressing such a question would be difficult to conduct.

The study was supported by the Project Program of National Clinical Research Center for Geriatric Disorders, the National Natural Science Foundation of China, and the U.S. National Institutes of Health. Two authors reported consulting fees from the pharmaceutical sector unrelated to the study. No other conflicts of interest were declared.

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

Allopurinol treatment is not associated with increased mortality in patients with gout and chronic kidney disease even at 5 years after starting treatment, a study has found.

Around one in five patients with gout also have chronic kidney disease, and previous research suggests that hyperuricemia is itself a contributor to renal disease, which is why there has been interest in the use of serum urate–lowering medication in patients with both conditions.

Since the publication of two earlier randomized controlled trials suggested a twofold increase in mortality among patients with renal disease who were treated with allopurinol in an attempt to slow progression, there has been wariness about the drug in patients with compromised renal function.

©joloei/Thinkstock

In a study published in Annals of Internal Medicine, Jie Wei, PhD, of Xiangya Hospital at Central South University in Changsha, China, and coauthors report the results of their retrospective, population-based study of 5,277 adults aged 40 and older with gout and moderate to severe chronic kidney disease who were initiated on allopurinol and 5,277 matched individuals not on allopurinol.

At 5 years after the patients started allopurinol, the study found that mortality was a statistically significant 15% lower (hazard ratio, 0.85; 95% confidence interval, 0.77-0.93) among those on allopurinol, compared with those not taking the drug. The rate was 4.9 deaths per 100 person-years among those on allopurinol, compared with 5.8 among those not taking it.

The researchers also created two simulated randomized clinical trials from the data for initiators of allopurinol, replicating each initiator twice. The first trial assigned patient replicates either to achieving a target serum urate level of less than 0.36 mmol/L within a year or not achieving it. The second assigned patient replicates to either an allopurinol dose-escalation group or no dose escalation.

For the target serum urate level study, 1,484 achieved the target, and this was associated with a 13% lower hazard ratio for mortality that just missed statistical significance (HR, 0.87; 95% confidence interval, 0.75-1.01).

In the dose-escalation study, there were 773 participants who increased their dose of allopurinol in the first year after initiation – from a median of 100 mg/day to a median final dose of 300 mg/day – and 2,923 who didn’t. Those who escalated their dose had a nonsignificant 12% lower risk of mortality (HR, 0.88; 95% CI, 0.73-1.07), compared with those who didn’t.

The authors suggest that this could be the result of confounding, as patients who achieved target serum urate levels may have been of better health generally than those who didn’t, which could also have contributed to lower mortality.

Coauthor of the study Yuqing Zhang, DSc, of Massachusetts General Hospital and Harvard Medical School, Boston, said there had previously been a theory that allopurinol could protect against progression of renal disease. However, the two randomized, controlled trials in patients with chronic kidney disease but not gout published in 2020 suggested that allopurinol was instead associated with a doubling of mortality in this group.

“This study really shows convincing evidence that among gout patients with renal disease, allopurinol does not increase mortality,” Dr. Zhang told this news organization. He suggested the reason that the earlier studies had found higher mortality among patients on allopurinol was because those patients did not have gout. Given that gout can increase mortality, treating it effectively with allopurinol may therefore reduce mortality even in patients with concurrent chronic kidney disease.

Commenting on the study, Angelo Gaffo, MD, from the Birmingham VA Medical Center and the division of rheumatology at the University of Alabama at Birmingham, said that, while there had been data suggesting increased mortality, the findings from this “very well-done” study were reassuring and even suggested a possible decrease in mortality associated with allopurinol.

“I wouldn’t scream it out loud because it needs confirmation, but it’s something also that we have a sense that could be true,” he said.

Dr. Gaffo noted that patients treated with allopurinol tended to be those with fewer comorbidities. “Patients who have a lot of comorbidities probably are less likely to have their dose of allopurinol started or increased because of some concerns that practitioners may have about putting them on another medicine or increasing the dose of that medicine,” he said.

He also stressed that the findings still need replication in other large database studies, given that a prospective, randomized clinical trial addressing such a question would be difficult to conduct.

The study was supported by the Project Program of National Clinical Research Center for Geriatric Disorders, the National Natural Science Foundation of China, and the U.S. National Institutes of Health. Two authors reported consulting fees from the pharmaceutical sector unrelated to the study. No other conflicts of interest were declared.

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

Allopurinol treatment is not associated with increased mortality in patients with gout and chronic kidney disease even at 5 years after starting treatment, a study has found.

Around one in five patients with gout also have chronic kidney disease, and previous research suggests that hyperuricemia is itself a contributor to renal disease, which is why there has been interest in the use of serum urate–lowering medication in patients with both conditions.

Since the publication of two earlier randomized controlled trials suggested a twofold increase in mortality among patients with renal disease who were treated with allopurinol in an attempt to slow progression, there has been wariness about the drug in patients with compromised renal function.

©joloei/Thinkstock

In a study published in Annals of Internal Medicine, Jie Wei, PhD, of Xiangya Hospital at Central South University in Changsha, China, and coauthors report the results of their retrospective, population-based study of 5,277 adults aged 40 and older with gout and moderate to severe chronic kidney disease who were initiated on allopurinol and 5,277 matched individuals not on allopurinol.

At 5 years after the patients started allopurinol, the study found that mortality was a statistically significant 15% lower (hazard ratio, 0.85; 95% confidence interval, 0.77-0.93) among those on allopurinol, compared with those not taking the drug. The rate was 4.9 deaths per 100 person-years among those on allopurinol, compared with 5.8 among those not taking it.

The researchers also created two simulated randomized clinical trials from the data for initiators of allopurinol, replicating each initiator twice. The first trial assigned patient replicates either to achieving a target serum urate level of less than 0.36 mmol/L within a year or not achieving it. The second assigned patient replicates to either an allopurinol dose-escalation group or no dose escalation.

For the target serum urate level study, 1,484 achieved the target, and this was associated with a 13% lower hazard ratio for mortality that just missed statistical significance (HR, 0.87; 95% confidence interval, 0.75-1.01).

In the dose-escalation study, there were 773 participants who increased their dose of allopurinol in the first year after initiation – from a median of 100 mg/day to a median final dose of 300 mg/day – and 2,923 who didn’t. Those who escalated their dose had a nonsignificant 12% lower risk of mortality (HR, 0.88; 95% CI, 0.73-1.07), compared with those who didn’t.

The authors suggest that this could be the result of confounding, as patients who achieved target serum urate levels may have been of better health generally than those who didn’t, which could also have contributed to lower mortality.

Coauthor of the study Yuqing Zhang, DSc, of Massachusetts General Hospital and Harvard Medical School, Boston, said there had previously been a theory that allopurinol could protect against progression of renal disease. However, the two randomized, controlled trials in patients with chronic kidney disease but not gout published in 2020 suggested that allopurinol was instead associated with a doubling of mortality in this group.

“This study really shows convincing evidence that among gout patients with renal disease, allopurinol does not increase mortality,” Dr. Zhang told this news organization. He suggested the reason that the earlier studies had found higher mortality among patients on allopurinol was because those patients did not have gout. Given that gout can increase mortality, treating it effectively with allopurinol may therefore reduce mortality even in patients with concurrent chronic kidney disease.

Commenting on the study, Angelo Gaffo, MD, from the Birmingham VA Medical Center and the division of rheumatology at the University of Alabama at Birmingham, said that, while there had been data suggesting increased mortality, the findings from this “very well-done” study were reassuring and even suggested a possible decrease in mortality associated with allopurinol.

“I wouldn’t scream it out loud because it needs confirmation, but it’s something also that we have a sense that could be true,” he said.

Dr. Gaffo noted that patients treated with allopurinol tended to be those with fewer comorbidities. “Patients who have a lot of comorbidities probably are less likely to have their dose of allopurinol started or increased because of some concerns that practitioners may have about putting them on another medicine or increasing the dose of that medicine,” he said.

He also stressed that the findings still need replication in other large database studies, given that a prospective, randomized clinical trial addressing such a question would be difficult to conduct.

The study was supported by the Project Program of National Clinical Research Center for Geriatric Disorders, the National Natural Science Foundation of China, and the U.S. National Institutes of Health. Two authors reported consulting fees from the pharmaceutical sector unrelated to the study. No other conflicts of interest were declared.

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

A new, highly contagious subvariant of Omicron has emerged, which some have begun calling “son of Omicron,” but public health officials say it’s too soon to tell what kind of real threat, if any, this new strain will present.

In the meantime, it’s worth watching BA.2, the World Health Organization said. The subvariant has been identified across at least 40 countries, including three cases reported in Houston and several in Washington state.

BA.2 accounts for only a small minority of reported cases so far, including 5% in India, 4% of those in the United Kingdom, and 2% each of cases in Sweden and Singapore.

The one exception is Denmark, a country with robust genetic sequencing abilities, where estimates range from 50% to 81% of cases.

The news throws a little more uncertainty into an already uncertain situation, including how close the world might be to a less life-altering infectious disease.

For example, the world is at an ideal point for a new variant to emerge, WHO Director General Tedros Adhanom Ghebreyesus, PhD, said during a Jan. 24 meeting of the WHO executive board. He also said it’s too early to call an “end game” to the pandemic.

Similarly, Anthony S. Fauci, MD, said on Jan. 19 that it remained “an open question” whether the Omicron variant could hasten endemic COVID-19, a situation where the virus still circulates but is much less disruptive to everyday life.
 

No Pi for you

This could be the first time a coronavirus subvariant rises to the level of a household name, or – if previous variants of the moment have shown us – it could recede from the spotlight.

For example, a lot of focus on the potential of the Mu variant to wreak havoc fizzled out a few weeks after the WHO listed it as a variant of interest on Aug. 30.

Subvariants can feature mutations and other small differences but are not distinct enough from an existing strain to be called a variant on their own and be named after the next letter in the Greek alphabet. That’s why BA.2 is not called the “Pi variant.”

Predicting what’s next for the coronavirus has puzzled many experts throughout the pandemic. That is why many public health officials wait for the WHO to officially designate a strain as a variant of interest or variant of concern before taking action.

At the moment with BA.2, it seems close monitoring is warranted.

Because it’s too early to call, expert predictions about BA.2 vary widely, from worry to cautious optimism.

For example, early data indicates that BA.2 could be more worrisome than original Omicron, Eric Feigl-Ding, ScD, an epidemiologist and health economist, said on Twitter.

Information from Denmark seems to show BA.2 either has “much faster transmission or it evades immunity even more,” he said.

The same day, Jan. 23, Dr. Feigl-Ding tweeted that other data shows the subvariant can spread twice as fast as Omicron, which was already much more contagious than previous versions of the virus.

At the same time, other experts appear less concerned. Robert Garry, PhD, a virologist at Tulane University, New Orleans, told the Washington Post that there is no reason to think BA.2 will be any worse than the original Omicron strain.

So which expert predictions will come closer to BA.2’s potential? For now, it’s just a watch-and-see situation.

For updated information, the website outbreak.info tracks BA.2’s average daily and cumulative prevalence in the United States and in other locations.

Also, if and when WHO experts decide to elevate BA.2 to a variant of interest or a variant of concern, it will be noted on its coronavirus variant tracking website.

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

A new, highly contagious subvariant of Omicron has emerged, which some have begun calling “son of Omicron,” but public health officials say it’s too soon to tell what kind of real threat, if any, this new strain will present.

In the meantime, it’s worth watching BA.2, the World Health Organization said. The subvariant has been identified across at least 40 countries, including three cases reported in Houston and several in Washington state.

BA.2 accounts for only a small minority of reported cases so far, including 5% in India, 4% of those in the United Kingdom, and 2% each of cases in Sweden and Singapore.

The one exception is Denmark, a country with robust genetic sequencing abilities, where estimates range from 50% to 81% of cases.

The news throws a little more uncertainty into an already uncertain situation, including how close the world might be to a less life-altering infectious disease.

For example, the world is at an ideal point for a new variant to emerge, WHO Director General Tedros Adhanom Ghebreyesus, PhD, said during a Jan. 24 meeting of the WHO executive board. He also said it’s too early to call an “end game” to the pandemic.

Similarly, Anthony S. Fauci, MD, said on Jan. 19 that it remained “an open question” whether the Omicron variant could hasten endemic COVID-19, a situation where the virus still circulates but is much less disruptive to everyday life.
 

No Pi for you

This could be the first time a coronavirus subvariant rises to the level of a household name, or – if previous variants of the moment have shown us – it could recede from the spotlight.

For example, a lot of focus on the potential of the Mu variant to wreak havoc fizzled out a few weeks after the WHO listed it as a variant of interest on Aug. 30.

Subvariants can feature mutations and other small differences but are not distinct enough from an existing strain to be called a variant on their own and be named after the next letter in the Greek alphabet. That’s why BA.2 is not called the “Pi variant.”

Predicting what’s next for the coronavirus has puzzled many experts throughout the pandemic. That is why many public health officials wait for the WHO to officially designate a strain as a variant of interest or variant of concern before taking action.

At the moment with BA.2, it seems close monitoring is warranted.

Because it’s too early to call, expert predictions about BA.2 vary widely, from worry to cautious optimism.

For example, early data indicates that BA.2 could be more worrisome than original Omicron, Eric Feigl-Ding, ScD, an epidemiologist and health economist, said on Twitter.

Information from Denmark seems to show BA.2 either has “much faster transmission or it evades immunity even more,” he said.

The same day, Jan. 23, Dr. Feigl-Ding tweeted that other data shows the subvariant can spread twice as fast as Omicron, which was already much more contagious than previous versions of the virus.

At the same time, other experts appear less concerned. Robert Garry, PhD, a virologist at Tulane University, New Orleans, told the Washington Post that there is no reason to think BA.2 will be any worse than the original Omicron strain.

So which expert predictions will come closer to BA.2’s potential? For now, it’s just a watch-and-see situation.

For updated information, the website outbreak.info tracks BA.2’s average daily and cumulative prevalence in the United States and in other locations.

Also, if and when WHO experts decide to elevate BA.2 to a variant of interest or a variant of concern, it will be noted on its coronavirus variant tracking website.

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

A new, highly contagious subvariant of Omicron has emerged, which some have begun calling “son of Omicron,” but public health officials say it’s too soon to tell what kind of real threat, if any, this new strain will present.

In the meantime, it’s worth watching BA.2, the World Health Organization said. The subvariant has been identified across at least 40 countries, including three cases reported in Houston and several in Washington state.

BA.2 accounts for only a small minority of reported cases so far, including 5% in India, 4% of those in the United Kingdom, and 2% each of cases in Sweden and Singapore.

The one exception is Denmark, a country with robust genetic sequencing abilities, where estimates range from 50% to 81% of cases.

The news throws a little more uncertainty into an already uncertain situation, including how close the world might be to a less life-altering infectious disease.

For example, the world is at an ideal point for a new variant to emerge, WHO Director General Tedros Adhanom Ghebreyesus, PhD, said during a Jan. 24 meeting of the WHO executive board. He also said it’s too early to call an “end game” to the pandemic.

Similarly, Anthony S. Fauci, MD, said on Jan. 19 that it remained “an open question” whether the Omicron variant could hasten endemic COVID-19, a situation where the virus still circulates but is much less disruptive to everyday life.
 

No Pi for you

This could be the first time a coronavirus subvariant rises to the level of a household name, or – if previous variants of the moment have shown us – it could recede from the spotlight.

For example, a lot of focus on the potential of the Mu variant to wreak havoc fizzled out a few weeks after the WHO listed it as a variant of interest on Aug. 30.

Subvariants can feature mutations and other small differences but are not distinct enough from an existing strain to be called a variant on their own and be named after the next letter in the Greek alphabet. That’s why BA.2 is not called the “Pi variant.”

Predicting what’s next for the coronavirus has puzzled many experts throughout the pandemic. That is why many public health officials wait for the WHO to officially designate a strain as a variant of interest or variant of concern before taking action.

At the moment with BA.2, it seems close monitoring is warranted.

Because it’s too early to call, expert predictions about BA.2 vary widely, from worry to cautious optimism.

For example, early data indicates that BA.2 could be more worrisome than original Omicron, Eric Feigl-Ding, ScD, an epidemiologist and health economist, said on Twitter.

Information from Denmark seems to show BA.2 either has “much faster transmission or it evades immunity even more,” he said.

The same day, Jan. 23, Dr. Feigl-Ding tweeted that other data shows the subvariant can spread twice as fast as Omicron, which was already much more contagious than previous versions of the virus.

At the same time, other experts appear less concerned. Robert Garry, PhD, a virologist at Tulane University, New Orleans, told the Washington Post that there is no reason to think BA.2 will be any worse than the original Omicron strain.

So which expert predictions will come closer to BA.2’s potential? For now, it’s just a watch-and-see situation.

For updated information, the website outbreak.info tracks BA.2’s average daily and cumulative prevalence in the United States and in other locations.

Also, if and when WHO experts decide to elevate BA.2 to a variant of interest or a variant of concern, it will be noted on its coronavirus variant tracking website.

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

Two years ago, I argued that independent care from nurse practitioners (NPs) and physician assistants (PAs) would not have ill effects on health outcomes. To the surprise of no one, NPs and PAs embraced the argument; physicians clobbered it.

My case had three pegs: One was that medicine isn’t rocket science and clinicians control a lot less than we think we do. The second peg was that technology levels the playing field of clinical care. High-sensitivity troponin assays, for instance, make missing MI a lot less likely. The third peg was empirical: Studies have found little difference in MD versus non–MD-led care. Looking back, I now see empiricism as the weakest part of the argument because the studies had so many limitations.

I update this viewpoint now because health care is increasingly delivered by NPs and PAs. And there are two concerning trends regarding NP education and experience. First is that nurses are turning to advanced practitioner training earlier in their careers – without gathering much bedside experience. And these training programs are increasingly likely to be online, with minimal hands-on clinical tutoring. 

Education and experience pop in my head often. Not every day, but many days I think back to my lucky 7 years in Indiana learning under the supervision of master clinicians – at a time when trainees were allowed the leeway to make decisions ... and mistakes. Then, when I joined private practice, I continued to learn from experienced practitioners.

It would be foolish to argue that training and experience aren’t important.

But here’s the thing: I still don’t see average health outcomes declining as a result of the rise in NPs and PAs. And even if I did, it wouldn’t matter. The rise in nonphysician care will not be undone, at least any time soon.

I will make three points: First, I will bolster two of my old arguments as to why we shouldn’t be worried about non-MD clinicians, then I will propose some ideas to increase confidence in NP and PA care.
 

Health care does not equal health

On the matter of how much clinicians affect outcomes, a recently published randomized controlled trial performed in India found that subsidizing insurance care led to increased utilization of hospital services but had no significant effect on health outcomes. This follows the RAND and Oregon Health Insurance studies in the United States, which largely reported similar results.

It’s about the delta

Logos trumps pathos. Sure, my physician colleagues can tell scary anecdotes of bad outcomes caused by an inexperienced NP or PA. I would counter that by saying I have sat on our hospital’s peer review committee for 2 decades, including the era before NPs or PAs were practicing, and I have plenty of stories of physician errors. These include, of course, my own errors.

Logos: We must consider the difference between non–MD-led care and MD-led care.

My arguments from 2020 remain relevant today. Most medical problems are not engineering puzzles. Many, perhaps most, patients fall into an easy protocol – say, chest pain, dyspnea, or atrial fibrillation. With basic training, a motivated serious person quickly gains skill in recognizing and treating everyday problems.

And just 2 years on, technology further levels the playing field. Consider radiology in 2022 – it’s easy to take for granted the speed of the CT scan, the fidelity of the MRI, and the easy access to both in the U.S. hospital system. Less experienced clinicians have never had more tools to assist with diagnostics and therapeutics.

The expansion of team-based care has also mitigated the effects of inexperience. It took Americans longer than Canadians to figure out how helpful pharmacists could be. Pharmacists in my hospital now help us dose complicated medicines and protect us against prescribing errors.

Then there is the immediate access to online information. Gone are the days when you had to memorize long-QT syndromes. Book knowledge – that I spent years acquiring – now comes in seconds. The other day an NP corrected me. I asked, Are you sure? Boom, she took out her phone and showed me the evidence.

In sum, if it were even possible to measure the clinical competence of care from NP and PA versus physicians, there would be two bell-shaped curves with a tremendous amount of overlap. And that overlap would steadily increase as a given NP or PA gathered experience. (The NP in our electrophysiology division has more than 25 years’ experience in heart rhythm care, and it is common for colleagues to call her before one of us docs. Rightly so.)
 

Three basic proposals regarding NP and PA care

To ensure quality of care, I have three proposals.

It has always seemed strange to me that an NP or PA can flip from one field to another without a period of training. I can’t just change practice from electrophysiology to dermatology without doing a residency. But NPs and PAs can.

My first proposal would be that NPs and PAs spend a substantial period of training in a field before practice – a legit apprenticeship. The duration of this period is a matter of debate, but it ought to be standardized.

My second proposal is that, if physicians are required to pass certification exams, so should NPs. (PAs have an exam every 10 years.) The exam should be the same as (or very similar to) the physician exam, and it should be specific to their field of practice.

While I have argued (and still feel) that the American Board of Internal Medicine brand of certification is dubious, the fact remains that physicians must maintain proficiency in their field. Requiring NPs and PAs to do the same would help foster specialization. And while I can’t cite empirical evidence, specialization seems super-important. We have NPs at my hospital who have been in the same area for years, and they exude clinical competence.

Finally, I have come to believe that the best way for nearly any clinician to practice medicine is as part of a team. (The exception being primary care in rural areas where there are clinician shortages.)

On the matter of team care, I’ve practiced for a long time, but nearly every day I run situations by a colleague; often this person is an NP. The economist Friedrich Hayek proposed that dispersed knowledge always outpaces the wisdom of any individual. That notion pertains well to the increasing complexities and specialization of modern medical practice.

A person who commits to learning one area of medicine, enjoys helping people, asks often for help, and has the support of colleagues is set up to be a successful clinician – whether the letters after their name are APRN, PA, DO, or MD.

Dr. Mandrola practices cardiac electrophysiology in Louisville, Ky. He did not report any relevant financial disclosures. A version of this article first appeared on Medscape.com.

Two years ago, I argued that independent care from nurse practitioners (NPs) and physician assistants (PAs) would not have ill effects on health outcomes. To the surprise of no one, NPs and PAs embraced the argument; physicians clobbered it.

My case had three pegs: One was that medicine isn’t rocket science and clinicians control a lot less than we think we do. The second peg was that technology levels the playing field of clinical care. High-sensitivity troponin assays, for instance, make missing MI a lot less likely. The third peg was empirical: Studies have found little difference in MD versus non–MD-led care. Looking back, I now see empiricism as the weakest part of the argument because the studies had so many limitations.

I update this viewpoint now because health care is increasingly delivered by NPs and PAs. And there are two concerning trends regarding NP education and experience. First is that nurses are turning to advanced practitioner training earlier in their careers – without gathering much bedside experience. And these training programs are increasingly likely to be online, with minimal hands-on clinical tutoring. 

Education and experience pop in my head often. Not every day, but many days I think back to my lucky 7 years in Indiana learning under the supervision of master clinicians – at a time when trainees were allowed the leeway to make decisions ... and mistakes. Then, when I joined private practice, I continued to learn from experienced practitioners.

It would be foolish to argue that training and experience aren’t important.

But here’s the thing: I still don’t see average health outcomes declining as a result of the rise in NPs and PAs. And even if I did, it wouldn’t matter. The rise in nonphysician care will not be undone, at least any time soon.

I will make three points: First, I will bolster two of my old arguments as to why we shouldn’t be worried about non-MD clinicians, then I will propose some ideas to increase confidence in NP and PA care.
 

Health care does not equal health

On the matter of how much clinicians affect outcomes, a recently published randomized controlled trial performed in India found that subsidizing insurance care led to increased utilization of hospital services but had no significant effect on health outcomes. This follows the RAND and Oregon Health Insurance studies in the United States, which largely reported similar results.

It’s about the delta

Logos trumps pathos. Sure, my physician colleagues can tell scary anecdotes of bad outcomes caused by an inexperienced NP or PA. I would counter that by saying I have sat on our hospital’s peer review committee for 2 decades, including the era before NPs or PAs were practicing, and I have plenty of stories of physician errors. These include, of course, my own errors.

Logos: We must consider the difference between non–MD-led care and MD-led care.

My arguments from 2020 remain relevant today. Most medical problems are not engineering puzzles. Many, perhaps most, patients fall into an easy protocol – say, chest pain, dyspnea, or atrial fibrillation. With basic training, a motivated serious person quickly gains skill in recognizing and treating everyday problems.

And just 2 years on, technology further levels the playing field. Consider radiology in 2022 – it’s easy to take for granted the speed of the CT scan, the fidelity of the MRI, and the easy access to both in the U.S. hospital system. Less experienced clinicians have never had more tools to assist with diagnostics and therapeutics.

The expansion of team-based care has also mitigated the effects of inexperience. It took Americans longer than Canadians to figure out how helpful pharmacists could be. Pharmacists in my hospital now help us dose complicated medicines and protect us against prescribing errors.

Then there is the immediate access to online information. Gone are the days when you had to memorize long-QT syndromes. Book knowledge – that I spent years acquiring – now comes in seconds. The other day an NP corrected me. I asked, Are you sure? Boom, she took out her phone and showed me the evidence.

In sum, if it were even possible to measure the clinical competence of care from NP and PA versus physicians, there would be two bell-shaped curves with a tremendous amount of overlap. And that overlap would steadily increase as a given NP or PA gathered experience. (The NP in our electrophysiology division has more than 25 years’ experience in heart rhythm care, and it is common for colleagues to call her before one of us docs. Rightly so.)
 

Three basic proposals regarding NP and PA care

To ensure quality of care, I have three proposals.

It has always seemed strange to me that an NP or PA can flip from one field to another without a period of training. I can’t just change practice from electrophysiology to dermatology without doing a residency. But NPs and PAs can.

My first proposal would be that NPs and PAs spend a substantial period of training in a field before practice – a legit apprenticeship. The duration of this period is a matter of debate, but it ought to be standardized.

My second proposal is that, if physicians are required to pass certification exams, so should NPs. (PAs have an exam every 10 years.) The exam should be the same as (or very similar to) the physician exam, and it should be specific to their field of practice.

While I have argued (and still feel) that the American Board of Internal Medicine brand of certification is dubious, the fact remains that physicians must maintain proficiency in their field. Requiring NPs and PAs to do the same would help foster specialization. And while I can’t cite empirical evidence, specialization seems super-important. We have NPs at my hospital who have been in the same area for years, and they exude clinical competence.

Finally, I have come to believe that the best way for nearly any clinician to practice medicine is as part of a team. (The exception being primary care in rural areas where there are clinician shortages.)

On the matter of team care, I’ve practiced for a long time, but nearly every day I run situations by a colleague; often this person is an NP. The economist Friedrich Hayek proposed that dispersed knowledge always outpaces the wisdom of any individual. That notion pertains well to the increasing complexities and specialization of modern medical practice.

A person who commits to learning one area of medicine, enjoys helping people, asks often for help, and has the support of colleagues is set up to be a successful clinician – whether the letters after their name are APRN, PA, DO, or MD.

Dr. Mandrola practices cardiac electrophysiology in Louisville, Ky. He did not report any relevant financial disclosures. A version of this article first appeared on Medscape.com.

Two years ago, I argued that independent care from nurse practitioners (NPs) and physician assistants (PAs) would not have ill effects on health outcomes. To the surprise of no one, NPs and PAs embraced the argument; physicians clobbered it.

My case had three pegs: One was that medicine isn’t rocket science and clinicians control a lot less than we think we do. The second peg was that technology levels the playing field of clinical care. High-sensitivity troponin assays, for instance, make missing MI a lot less likely. The third peg was empirical: Studies have found little difference in MD versus non–MD-led care. Looking back, I now see empiricism as the weakest part of the argument because the studies had so many limitations.

I update this viewpoint now because health care is increasingly delivered by NPs and PAs. And there are two concerning trends regarding NP education and experience. First is that nurses are turning to advanced practitioner training earlier in their careers – without gathering much bedside experience. And these training programs are increasingly likely to be online, with minimal hands-on clinical tutoring. 

Education and experience pop in my head often. Not every day, but many days I think back to my lucky 7 years in Indiana learning under the supervision of master clinicians – at a time when trainees were allowed the leeway to make decisions ... and mistakes. Then, when I joined private practice, I continued to learn from experienced practitioners.

It would be foolish to argue that training and experience aren’t important.

But here’s the thing: I still don’t see average health outcomes declining as a result of the rise in NPs and PAs. And even if I did, it wouldn’t matter. The rise in nonphysician care will not be undone, at least any time soon.

I will make three points: First, I will bolster two of my old arguments as to why we shouldn’t be worried about non-MD clinicians, then I will propose some ideas to increase confidence in NP and PA care.
 

Health care does not equal health

On the matter of how much clinicians affect outcomes, a recently published randomized controlled trial performed in India found that subsidizing insurance care led to increased utilization of hospital services but had no significant effect on health outcomes. This follows the RAND and Oregon Health Insurance studies in the United States, which largely reported similar results.

It’s about the delta

Logos trumps pathos. Sure, my physician colleagues can tell scary anecdotes of bad outcomes caused by an inexperienced NP or PA. I would counter that by saying I have sat on our hospital’s peer review committee for 2 decades, including the era before NPs or PAs were practicing, and I have plenty of stories of physician errors. These include, of course, my own errors.

Logos: We must consider the difference between non–MD-led care and MD-led care.

My arguments from 2020 remain relevant today. Most medical problems are not engineering puzzles. Many, perhaps most, patients fall into an easy protocol – say, chest pain, dyspnea, or atrial fibrillation. With basic training, a motivated serious person quickly gains skill in recognizing and treating everyday problems.

And just 2 years on, technology further levels the playing field. Consider radiology in 2022 – it’s easy to take for granted the speed of the CT scan, the fidelity of the MRI, and the easy access to both in the U.S. hospital system. Less experienced clinicians have never had more tools to assist with diagnostics and therapeutics.

The expansion of team-based care has also mitigated the effects of inexperience. It took Americans longer than Canadians to figure out how helpful pharmacists could be. Pharmacists in my hospital now help us dose complicated medicines and protect us against prescribing errors.

Then there is the immediate access to online information. Gone are the days when you had to memorize long-QT syndromes. Book knowledge – that I spent years acquiring – now comes in seconds. The other day an NP corrected me. I asked, Are you sure? Boom, she took out her phone and showed me the evidence.

In sum, if it were even possible to measure the clinical competence of care from NP and PA versus physicians, there would be two bell-shaped curves with a tremendous amount of overlap. And that overlap would steadily increase as a given NP or PA gathered experience. (The NP in our electrophysiology division has more than 25 years’ experience in heart rhythm care, and it is common for colleagues to call her before one of us docs. Rightly so.)
 

Three basic proposals regarding NP and PA care

To ensure quality of care, I have three proposals.

It has always seemed strange to me that an NP or PA can flip from one field to another without a period of training. I can’t just change practice from electrophysiology to dermatology without doing a residency. But NPs and PAs can.

My first proposal would be that NPs and PAs spend a substantial period of training in a field before practice – a legit apprenticeship. The duration of this period is a matter of debate, but it ought to be standardized.

My second proposal is that, if physicians are required to pass certification exams, so should NPs. (PAs have an exam every 10 years.) The exam should be the same as (or very similar to) the physician exam, and it should be specific to their field of practice.

While I have argued (and still feel) that the American Board of Internal Medicine brand of certification is dubious, the fact remains that physicians must maintain proficiency in their field. Requiring NPs and PAs to do the same would help foster specialization. And while I can’t cite empirical evidence, specialization seems super-important. We have NPs at my hospital who have been in the same area for years, and they exude clinical competence.

Finally, I have come to believe that the best way for nearly any clinician to practice medicine is as part of a team. (The exception being primary care in rural areas where there are clinician shortages.)

On the matter of team care, I’ve practiced for a long time, but nearly every day I run situations by a colleague; often this person is an NP. The economist Friedrich Hayek proposed that dispersed knowledge always outpaces the wisdom of any individual. That notion pertains well to the increasing complexities and specialization of modern medical practice.

A person who commits to learning one area of medicine, enjoys helping people, asks often for help, and has the support of colleagues is set up to be a successful clinician – whether the letters after their name are APRN, PA, DO, or MD.

Dr. Mandrola practices cardiac electrophysiology in Louisville, Ky. He did not report any relevant financial disclosures. A version of this article first appeared on Medscape.com.

Doctors who are unhappy with low insurance payments may be able to level the playing field and negotiate better rates in their contracts, say experts in physician-payer contracts.

Many doctors sign long-term agreements and then forget about them, says Marcia Brauchler, president and founder of Physicians’ Ally, Littleton, Colorado, a health care consulting company. “The average doctor is trying to run a practice on 2010 rates because they haven’t touched their insurance contracts for 10 years,” she says.

Payers also make a lot of money by adopting dozens of unilateral policy and procedure changes every year that they know physicians are too busy to read. They are counting on the fact that few doctors will understand what the policy changes are and that even fewer will contest them, says Greg Brodek, JD, chair of the health law practice group and head of the managed care litigation practice at Duane Morris, who represents doctors in disputes with payers.

These experts say doctors can push back on one-sided payer contracts and negotiate changes. Mr. Brodek says some practices have more leverage than others to influence payers – if they are larger, in a specialty that the payer needs in its network, or located in a remote area where the payer has limited options.

Here are seven key areas to pay attention to:

1. Long-term contracts. Most doctors sign multiyear “evergreen” contracts that renew automatically every year. This allows insurers to continue to pay doctors the same rate for years.

To avoid this, doctors should negotiate new rates when their agreements renew or, if they prefer, ask that a cost-of-living adjustment be included in the multiyear contract that applies to subsequent years, says Ms. Brauchler.

2. Fee schedules. Payers will “whitewash” what they’re paying you by saying it’s 100% of the payer fee schedule. When it comes to Medicare, they may be paying you a lot less, says Ms. Brauchler.

“My biggest takeaway is to compare the CPT codes of the payer’s fee schedule against what Medicare allows. For example, for CPT code 99213, a 15-minute established office visit, if Medicare pays you $100 and Aetna pays you $75.00, you’re getting 75% of Medicare,” says Ms. Brauchler. To avoid this, doctors should ask that the contract state that reimbursement be made according to Medicare’s medical policies rather than the payer’s.

3. Audits. Commercial payers will claim they have a contractual right to conduct pre- and post-payment audits of physicians’ claims that can result in reduced payments. The contract only states that if doctors correctly submit claims, they will get paid, not that they will have to go through extra steps, which is a breach of their agreement, says Mr. Brodek.

In his experience, 90% of payers back down when asked to provide the contractual basis to conduct these audits. “Or, they take the position that it’s not in the contract but that they have a policy.”

4. Contract amendments versus policies and procedures. This is a huge area that needs to be clarified in contracts and monitored by providers throughout their relationships with payers. Contracts have three elements: the parties, the services provided, and the payment. Changing any one of those terms requires an amendment and advance written notice that has to be delivered to the other party in a certain way, such as by overnight delivery, says Mr. Brodek.

In addition, both parties have to sign that they agree to an amendment. “But, that’s too cumbersome and complicated for payers who have decided to adopt policies instead. These are unilateral changes made with no advance notice given, since the payer typically posts the change on its website,” says Mr. Brodek.

5. Recoupment efforts. Payers will review claims after they’re paid and contact the doctor saying they found a mistake, such as inappropriate coding. They will claim that the doctor now owes them a large sum of money based on a percentage of claims reviewed. “They typically send the doctor a letter that ends with, ‘If you do not pay this amount within 30 days, we will offset the amount due against future payments that we would otherwise make to you,’” says Mr. Brodek.

He recommends that contracts include the doctors’ right to contest an audit so the “payer doesn’t have the unilateral right to disregard the initial coding that the doctor appropriately assigned to the claim and recoup the money anyway,” says Mr. Brodek.

6. Medical network rentals and products. Most contracts say that payers can rent out their medical networks to other health plans, such as HMOs, and that the clinicians agree to comply with all of their policies and procedures. The agreement may also cover the products of other plans.

“The problem is that physicians are not given information about the other plans, including their terms and conditions for getting paid,” says Mr. Brodek. If a problem with payment arises, they have no written agreement with that plan, which makes it harder to enforce.

“That’s why we recommend that doctors negotiate agreements that only cover the main payer. Most of the time, the payer is amenable to putting that language in the contract,” he says.

7. Payer products. In the past several years, a typical contract has included appendices that list the payer’s products, such as Medicare, workers compensation, auto insurance liability, or health care exchange products. Many clinicians don’t realize they can pick the plans they want to participate in by accepting or opting out, says Mr. Brodek.

“We advise clients to limit the contract to what you want covered and to make informed decisions, because some products have low fees set by the states, such as workers compensation and health care exchanges,” says Mr. Brodek.

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

Doctors who are unhappy with low insurance payments may be able to level the playing field and negotiate better rates in their contracts, say experts in physician-payer contracts.

Many doctors sign long-term agreements and then forget about them, says Marcia Brauchler, president and founder of Physicians’ Ally, Littleton, Colorado, a health care consulting company. “The average doctor is trying to run a practice on 2010 rates because they haven’t touched their insurance contracts for 10 years,” she says.

Payers also make a lot of money by adopting dozens of unilateral policy and procedure changes every year that they know physicians are too busy to read. They are counting on the fact that few doctors will understand what the policy changes are and that even fewer will contest them, says Greg Brodek, JD, chair of the health law practice group and head of the managed care litigation practice at Duane Morris, who represents doctors in disputes with payers.

These experts say doctors can push back on one-sided payer contracts and negotiate changes. Mr. Brodek says some practices have more leverage than others to influence payers – if they are larger, in a specialty that the payer needs in its network, or located in a remote area where the payer has limited options.

Here are seven key areas to pay attention to:

1. Long-term contracts. Most doctors sign multiyear “evergreen” contracts that renew automatically every year. This allows insurers to continue to pay doctors the same rate for years.

To avoid this, doctors should negotiate new rates when their agreements renew or, if they prefer, ask that a cost-of-living adjustment be included in the multiyear contract that applies to subsequent years, says Ms. Brauchler.

2. Fee schedules. Payers will “whitewash” what they’re paying you by saying it’s 100% of the payer fee schedule. When it comes to Medicare, they may be paying you a lot less, says Ms. Brauchler.

“My biggest takeaway is to compare the CPT codes of the payer’s fee schedule against what Medicare allows. For example, for CPT code 99213, a 15-minute established office visit, if Medicare pays you $100 and Aetna pays you $75.00, you’re getting 75% of Medicare,” says Ms. Brauchler. To avoid this, doctors should ask that the contract state that reimbursement be made according to Medicare’s medical policies rather than the payer’s.

3. Audits. Commercial payers will claim they have a contractual right to conduct pre- and post-payment audits of physicians’ claims that can result in reduced payments. The contract only states that if doctors correctly submit claims, they will get paid, not that they will have to go through extra steps, which is a breach of their agreement, says Mr. Brodek.

In his experience, 90% of payers back down when asked to provide the contractual basis to conduct these audits. “Or, they take the position that it’s not in the contract but that they have a policy.”

4. Contract amendments versus policies and procedures. This is a huge area that needs to be clarified in contracts and monitored by providers throughout their relationships with payers. Contracts have three elements: the parties, the services provided, and the payment. Changing any one of those terms requires an amendment and advance written notice that has to be delivered to the other party in a certain way, such as by overnight delivery, says Mr. Brodek.

In addition, both parties have to sign that they agree to an amendment. “But, that’s too cumbersome and complicated for payers who have decided to adopt policies instead. These are unilateral changes made with no advance notice given, since the payer typically posts the change on its website,” says Mr. Brodek.

5. Recoupment efforts. Payers will review claims after they’re paid and contact the doctor saying they found a mistake, such as inappropriate coding. They will claim that the doctor now owes them a large sum of money based on a percentage of claims reviewed. “They typically send the doctor a letter that ends with, ‘If you do not pay this amount within 30 days, we will offset the amount due against future payments that we would otherwise make to you,’” says Mr. Brodek.

He recommends that contracts include the doctors’ right to contest an audit so the “payer doesn’t have the unilateral right to disregard the initial coding that the doctor appropriately assigned to the claim and recoup the money anyway,” says Mr. Brodek.

6. Medical network rentals and products. Most contracts say that payers can rent out their medical networks to other health plans, such as HMOs, and that the clinicians agree to comply with all of their policies and procedures. The agreement may also cover the products of other plans.

“The problem is that physicians are not given information about the other plans, including their terms and conditions for getting paid,” says Mr. Brodek. If a problem with payment arises, they have no written agreement with that plan, which makes it harder to enforce.

“That’s why we recommend that doctors negotiate agreements that only cover the main payer. Most of the time, the payer is amenable to putting that language in the contract,” he says.

7. Payer products. In the past several years, a typical contract has included appendices that list the payer’s products, such as Medicare, workers compensation, auto insurance liability, or health care exchange products. Many clinicians don’t realize they can pick the plans they want to participate in by accepting or opting out, says Mr. Brodek.

“We advise clients to limit the contract to what you want covered and to make informed decisions, because some products have low fees set by the states, such as workers compensation and health care exchanges,” says Mr. Brodek.

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

Doctors who are unhappy with low insurance payments may be able to level the playing field and negotiate better rates in their contracts, say experts in physician-payer contracts.

Many doctors sign long-term agreements and then forget about them, says Marcia Brauchler, president and founder of Physicians’ Ally, Littleton, Colorado, a health care consulting company. “The average doctor is trying to run a practice on 2010 rates because they haven’t touched their insurance contracts for 10 years,” she says.

Payers also make a lot of money by adopting dozens of unilateral policy and procedure changes every year that they know physicians are too busy to read. They are counting on the fact that few doctors will understand what the policy changes are and that even fewer will contest them, says Greg Brodek, JD, chair of the health law practice group and head of the managed care litigation practice at Duane Morris, who represents doctors in disputes with payers.

These experts say doctors can push back on one-sided payer contracts and negotiate changes. Mr. Brodek says some practices have more leverage than others to influence payers – if they are larger, in a specialty that the payer needs in its network, or located in a remote area where the payer has limited options.

Here are seven key areas to pay attention to:

1. Long-term contracts. Most doctors sign multiyear “evergreen” contracts that renew automatically every year. This allows insurers to continue to pay doctors the same rate for years.

To avoid this, doctors should negotiate new rates when their agreements renew or, if they prefer, ask that a cost-of-living adjustment be included in the multiyear contract that applies to subsequent years, says Ms. Brauchler.

2. Fee schedules. Payers will “whitewash” what they’re paying you by saying it’s 100% of the payer fee schedule. When it comes to Medicare, they may be paying you a lot less, says Ms. Brauchler.

“My biggest takeaway is to compare the CPT codes of the payer’s fee schedule against what Medicare allows. For example, for CPT code 99213, a 15-minute established office visit, if Medicare pays you $100 and Aetna pays you $75.00, you’re getting 75% of Medicare,” says Ms. Brauchler. To avoid this, doctors should ask that the contract state that reimbursement be made according to Medicare’s medical policies rather than the payer’s.

3. Audits. Commercial payers will claim they have a contractual right to conduct pre- and post-payment audits of physicians’ claims that can result in reduced payments. The contract only states that if doctors correctly submit claims, they will get paid, not that they will have to go through extra steps, which is a breach of their agreement, says Mr. Brodek.

In his experience, 90% of payers back down when asked to provide the contractual basis to conduct these audits. “Or, they take the position that it’s not in the contract but that they have a policy.”

4. Contract amendments versus policies and procedures. This is a huge area that needs to be clarified in contracts and monitored by providers throughout their relationships with payers. Contracts have three elements: the parties, the services provided, and the payment. Changing any one of those terms requires an amendment and advance written notice that has to be delivered to the other party in a certain way, such as by overnight delivery, says Mr. Brodek.

In addition, both parties have to sign that they agree to an amendment. “But, that’s too cumbersome and complicated for payers who have decided to adopt policies instead. These are unilateral changes made with no advance notice given, since the payer typically posts the change on its website,” says Mr. Brodek.

5. Recoupment efforts. Payers will review claims after they’re paid and contact the doctor saying they found a mistake, such as inappropriate coding. They will claim that the doctor now owes them a large sum of money based on a percentage of claims reviewed. “They typically send the doctor a letter that ends with, ‘If you do not pay this amount within 30 days, we will offset the amount due against future payments that we would otherwise make to you,’” says Mr. Brodek.

He recommends that contracts include the doctors’ right to contest an audit so the “payer doesn’t have the unilateral right to disregard the initial coding that the doctor appropriately assigned to the claim and recoup the money anyway,” says Mr. Brodek.

6. Medical network rentals and products. Most contracts say that payers can rent out their medical networks to other health plans, such as HMOs, and that the clinicians agree to comply with all of their policies and procedures. The agreement may also cover the products of other plans.

“The problem is that physicians are not given information about the other plans, including their terms and conditions for getting paid,” says Mr. Brodek. If a problem with payment arises, they have no written agreement with that plan, which makes it harder to enforce.

“That’s why we recommend that doctors negotiate agreements that only cover the main payer. Most of the time, the payer is amenable to putting that language in the contract,” he says.

7. Payer products. In the past several years, a typical contract has included appendices that list the payer’s products, such as Medicare, workers compensation, auto insurance liability, or health care exchange products. Many clinicians don’t realize they can pick the plans they want to participate in by accepting or opting out, says Mr. Brodek.

“We advise clients to limit the contract to what you want covered and to make informed decisions, because some products have low fees set by the states, such as workers compensation and health care exchanges,” says Mr. Brodek.

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

Depending on the data you’re looking at, 40%-60% of physicians are burned out.

Research studies and the eye test reveal the painfully obvious: Colleagues are tired, winded, spent, and at times way past burned out. People aren’t asking me if they’re burned out. They know they’re burned out; heck, they can even recite the Maslach burnout inventory, forward and backward, in a mask, or while completing a COVID quarantine. A fair share of people know the key steps to prevent burnout and promote recovery.

What I’m starting to see more of is, “Why should I even bother to recover from this? Why pick myself up again just to get another occupational stress injury (burnout, demoralization, moral injury, etc.)?” In other words, it’s not just simply about negating burnout; it’s about supporting and facilitating the motivation to work.

We’ve been through so much with COVID that it might be challenging to remember when you saw a truly engaged work environment. No doubt, we have outstanding professionals across medicine who answer the bell every day. However, if you’ve been looking closely, many teams/units have lost a bit of the zip and pep. The synergy and trust aren’t as smooth, and at noon, everyone counts the hours to the end of the shift.

You may be thinking, Well, of course, they are; we’re still amid a pandemic, and people have been through hell. Your observation would be correct, except I’ve personally seen some teams weather the pandemic storm and still remain engaged (some even more involved).

The No. 1 consult result for the GW Resiliency and Well-Being Center, where I work, has been on lectures for burnout. The R&WC has given so many of these lectures that my dreams take the form of a PowerPoint presentation. Overall the talks have gone very well. We’ve added skills sections on practices of whole-person care. We’ve blitzed the daylights out of restorative sleep, yet I know we are still searching for the correct narrative.

Motivated staff, faculty, and students will genuinely take in the information and follow the recommendations; however, they still struggle to find that drive and zest for work. Yes, moving from burnout to neutral is reasonable but likely won’t move the needle of your professional or personal life. We need to have the emotional energy and the clear desire to utilize that energy for a meaningful purpose.

Talking about burnout in specific ways is straightforward and, in my opinion, much easier than talking about engagement. Part of the challenge when trying to discuss engagement is that people can feel invalidated or that you’re telling them to be stoic. Or worse yet, that the problem of burnout primarily lies with them. It’s essential to recognize the role of an organizational factor in burnout (approximately 80%, depending on the study); still, even if you address burnout, people may not be miserable, but it doesn’t mean they will stay at their current job (please cue intro music for the Great Resignation).

Engagement models have existed for some time and certainly have gained much more attention in health care settings over the past 2 decades. Engagement can be described as having three components: dedication, vigor, and absorption. When a person is filling all three of these components over time, presto – you get the much-sought-after state of the supremely engaged professional.

These models definitely give us excellent starting points to approach engagement from a pre-COVID era. In COVID and beyond, I’m not sure how these models will stand up in a hybrid work environment, where autonomy and flexibility could be more valued than ever. Personally, COVID revealed some things I was missing in my work pre-COVID:

• Time to think and process. This was one of the great things about being a consultation-liaison psychiatrist; it was literally feast or famine.
• Doing what I’m talented at and really enjoy.
• Time is short, and I want to be more present in the life of my family.
• Growth and curiosity are vitally important to me. These have to be part of my daily ritual and practice.

The list above isn’t exhaustive, but I’ve found them to be my own personal recipe for being engaged. Over the next series of articles, I’m going to focus on engagement and factors related to key resilience. These articles will be informed by a front-line view from my colleagues, and hopefully start to separate the myth from reality on the subject of health professional engagement and resilience.

Everyone be safe and well!

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

Depending on the data you’re looking at, 40%-60% of physicians are burned out.

Research studies and the eye test reveal the painfully obvious: Colleagues are tired, winded, spent, and at times way past burned out. People aren’t asking me if they’re burned out. They know they’re burned out; heck, they can even recite the Maslach burnout inventory, forward and backward, in a mask, or while completing a COVID quarantine. A fair share of people know the key steps to prevent burnout and promote recovery.

What I’m starting to see more of is, “Why should I even bother to recover from this? Why pick myself up again just to get another occupational stress injury (burnout, demoralization, moral injury, etc.)?” In other words, it’s not just simply about negating burnout; it’s about supporting and facilitating the motivation to work.

We’ve been through so much with COVID that it might be challenging to remember when you saw a truly engaged work environment. No doubt, we have outstanding professionals across medicine who answer the bell every day. However, if you’ve been looking closely, many teams/units have lost a bit of the zip and pep. The synergy and trust aren’t as smooth, and at noon, everyone counts the hours to the end of the shift.

You may be thinking, Well, of course, they are; we’re still amid a pandemic, and people have been through hell. Your observation would be correct, except I’ve personally seen some teams weather the pandemic storm and still remain engaged (some even more involved).

The No. 1 consult result for the GW Resiliency and Well-Being Center, where I work, has been on lectures for burnout. The R&WC has given so many of these lectures that my dreams take the form of a PowerPoint presentation. Overall the talks have gone very well. We’ve added skills sections on practices of whole-person care. We’ve blitzed the daylights out of restorative sleep, yet I know we are still searching for the correct narrative.

Motivated staff, faculty, and students will genuinely take in the information and follow the recommendations; however, they still struggle to find that drive and zest for work. Yes, moving from burnout to neutral is reasonable but likely won’t move the needle of your professional or personal life. We need to have the emotional energy and the clear desire to utilize that energy for a meaningful purpose.

Talking about burnout in specific ways is straightforward and, in my opinion, much easier than talking about engagement. Part of the challenge when trying to discuss engagement is that people can feel invalidated or that you’re telling them to be stoic. Or worse yet, that the problem of burnout primarily lies with them. It’s essential to recognize the role of an organizational factor in burnout (approximately 80%, depending on the study); still, even if you address burnout, people may not be miserable, but it doesn’t mean they will stay at their current job (please cue intro music for the Great Resignation).

Engagement models have existed for some time and certainly have gained much more attention in health care settings over the past 2 decades. Engagement can be described as having three components: dedication, vigor, and absorption. When a person is filling all three of these components over time, presto – you get the much-sought-after state of the supremely engaged professional.

These models definitely give us excellent starting points to approach engagement from a pre-COVID era. In COVID and beyond, I’m not sure how these models will stand up in a hybrid work environment, where autonomy and flexibility could be more valued than ever. Personally, COVID revealed some things I was missing in my work pre-COVID:

• Time to think and process. This was one of the great things about being a consultation-liaison psychiatrist; it was literally feast or famine.
• Doing what I’m talented at and really enjoy.
• Time is short, and I want to be more present in the life of my family.
• Growth and curiosity are vitally important to me. These have to be part of my daily ritual and practice.

The list above isn’t exhaustive, but I’ve found them to be my own personal recipe for being engaged. Over the next series of articles, I’m going to focus on engagement and factors related to key resilience. These articles will be informed by a front-line view from my colleagues, and hopefully start to separate the myth from reality on the subject of health professional engagement and resilience.

Everyone be safe and well!

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

Depending on the data you’re looking at, 40%-60% of physicians are burned out.

Research studies and the eye test reveal the painfully obvious: Colleagues are tired, winded, spent, and at times way past burned out. People aren’t asking me if they’re burned out. They know they’re burned out; heck, they can even recite the Maslach burnout inventory, forward and backward, in a mask, or while completing a COVID quarantine. A fair share of people know the key steps to prevent burnout and promote recovery.

What I’m starting to see more of is, “Why should I even bother to recover from this? Why pick myself up again just to get another occupational stress injury (burnout, demoralization, moral injury, etc.)?” In other words, it’s not just simply about negating burnout; it’s about supporting and facilitating the motivation to work.

We’ve been through so much with COVID that it might be challenging to remember when you saw a truly engaged work environment. No doubt, we have outstanding professionals across medicine who answer the bell every day. However, if you’ve been looking closely, many teams/units have lost a bit of the zip and pep. The synergy and trust aren’t as smooth, and at noon, everyone counts the hours to the end of the shift.

You may be thinking, Well, of course, they are; we’re still amid a pandemic, and people have been through hell. Your observation would be correct, except I’ve personally seen some teams weather the pandemic storm and still remain engaged (some even more involved).

The No. 1 consult result for the GW Resiliency and Well-Being Center, where I work, has been on lectures for burnout. The R&WC has given so many of these lectures that my dreams take the form of a PowerPoint presentation. Overall the talks have gone very well. We’ve added skills sections on practices of whole-person care. We’ve blitzed the daylights out of restorative sleep, yet I know we are still searching for the correct narrative.

Motivated staff, faculty, and students will genuinely take in the information and follow the recommendations; however, they still struggle to find that drive and zest for work. Yes, moving from burnout to neutral is reasonable but likely won’t move the needle of your professional or personal life. We need to have the emotional energy and the clear desire to utilize that energy for a meaningful purpose.

Talking about burnout in specific ways is straightforward and, in my opinion, much easier than talking about engagement. Part of the challenge when trying to discuss engagement is that people can feel invalidated or that you’re telling them to be stoic. Or worse yet, that the problem of burnout primarily lies with them. It’s essential to recognize the role of an organizational factor in burnout (approximately 80%, depending on the study); still, even if you address burnout, people may not be miserable, but it doesn’t mean they will stay at their current job (please cue intro music for the Great Resignation).

Engagement models have existed for some time and certainly have gained much more attention in health care settings over the past 2 decades. Engagement can be described as having three components: dedication, vigor, and absorption. When a person is filling all three of these components over time, presto – you get the much-sought-after state of the supremely engaged professional.

These models definitely give us excellent starting points to approach engagement from a pre-COVID era. In COVID and beyond, I’m not sure how these models will stand up in a hybrid work environment, where autonomy and flexibility could be more valued than ever. Personally, COVID revealed some things I was missing in my work pre-COVID:

• Time to think and process. This was one of the great things about being a consultation-liaison psychiatrist; it was literally feast or famine.
• Doing what I’m talented at and really enjoy.
• Time is short, and I want to be more present in the life of my family.
• Growth and curiosity are vitally important to me. These have to be part of my daily ritual and practice.

The list above isn’t exhaustive, but I’ve found them to be my own personal recipe for being engaged. Over the next series of articles, I’m going to focus on engagement and factors related to key resilience. These articles will be informed by a front-line view from my colleagues, and hopefully start to separate the myth from reality on the subject of health professional engagement and resilience.

Everyone be safe and well!

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

Disruption of the bacteria in the gut is linked with susceptibility to long COVID-19 syndrome, according to new findings.

While links have been found between the gut’s microbiome and COVID-19, as well as other diseases, this is the first published research to show a link specifically to COVID’s long-term effects, the investigators, based at the Chinese University of Hong Kong, wrote in Gut.

Courtesy Dr. Siew Ng

“To our knowledge, this is the first study to show that altered gut microbiome composition is strongly associated with persistent symptoms in patients with COVID-19 up to 6 months after clearance of SARS-CoV-2 virus,” said Siew Ng, MBBS, PhD, associate director at the university’s Center for Gut Microbiota Research.

At three hospitals, the researchers enrolled 106 patients with COVID-19 from February to August 2020 with stool samples at admission and at 1 month and 6 months after discharge, and compared them with people who did not have COVID, recruited in 2019. The severity of COVID in the enrolled patients was mostly mild to moderate.

At 3 months, 86 of the patients with COVID had post–acute COVID-19 syndrome (PACS) – defined as at least one persistent, otherwise unexplained symptom 4 weeks after clearance of the virus. And 81 patients had PACS at 6 months, most commonly fatigue, poor memory, hair loss, anxiety, and trouble sleeping.

Using stool samples for their analysis, the researchers found that, broadly, the diversity of the types of bacteria, and the abundance of these bacteria, were significantly lower at 6 months for those with PACS, compared with those without PACS and with controls (P < .05 and P < .0001, respectively). Among those with PACS, 28 bacteria species were diminished and 14 were enriched, both at baseline and follow-up. Those patients who had COVID but not PACS showed just 25 alterations of bacteria species at the time of hospital admission, and they all normalized by 6 months.

Having respiratory symptoms at 6 months was linked with higher levels of opportunistic pathogens such as Streptococcus anginosus and S. vestibularis. Neuropsychiatric symptoms and fatigue were associated with nosocomial pathogens that are linked to opportunistic infections, such as Clostridium innocuum and Actinomyces naeslundii (P < .05).

Bacteria known for producing butyrate, a beneficial fatty acid, were significantly depleted in those patients with hair loss. And certain of these bacteria, including Bifidobacterium pseudocatenulatum and Faecalibacterium prausnitzii, had the largest inverse correlations with PACS at 6 months (P < .05), the researchers found.

“Particular gut microbial profiles may indicate heightened susceptibility,” Dr. Ng said.

Although the findings were drawn from patients with earlier strains of the COVID-19 virus, the findings still apply to new variants, including Omicron, since these pose the same problem of persistent disruption of the immune system, Dr. Ng said.

Her group is conducting trials to look at how modulating the microbiome might prevent long COVID and boost antibodies after vaccination in high-risk people, she said.

“Gut microbiota influences the health of the host,” Dr. Ng said. “It provides crucial benefits in the form of immune system development, prevention of infections, nutrient acquisition, and brain and nervous system functionality. Considering the millions of people infected during the ongoing pandemic, our findings are a strong impetus for consideration of microbiota modulation to facilitate timely recovery and reduce the burden of post–acute COVID-19 syndrome.”

Courtesy Dr. John Haran

John Haran, MD, PhD, associate professor of microbiology and physiological systems and emergency medicine at the University of Massachusetts, Worcester, said the research adds to the evidence base on the gut microbiome’s links to COVID, but there was likely be no clinical impact yet. Still, he said the findings linking specific species to specific symptoms was particularly interesting.

“Very early on during hospitalization, [the researchers] saw these differences and correlated out with people who have longer symptoms, and especially different groups of people that have longer symptoms, too,” said Dr. Haran, who has done research on the topic. “It’s very different if you have different symptoms, for example, you keep coughing for months versus you have brain fog and fatigue, or other debilitating symptoms.”

Dr. Haran noted that the findings didn’t identify bacteria types especially linked to COVID, but rather species that have already been found to be associated with a “bad” microbiome. He also pointed out that the patients enrolled in the study were not vaccinated, because vaccines weren’t available at the time. Still, further study to see whether modulation of gut bacteria can be a therapy seems worthwhile.

“Microbiome modulation is pretty safe, and that’s really the next big step that needs to be taken in this,” he said.

For now, the findings don’t give the clinician much new ammunition for treatment.

“We’re not there yet,” he added. “It’s not as if clinicians are going to tell their COVID patients: ‘Go out and buy some kale.’ ”

Eugene Chang, MD, professor of medicine at the University of Chicago, who has studied the gut microbiome and gastrointestinal disease, said it’s “too preliminary” to say whether the findings could lead to a clinical impact. The measures used merely identify the microbes present, but not what they are doing.

“These measures are unlikely to perform well enough to be useful for risk assessment or predicting clinical outcomes,” he said. “That being said, advances in technology are being made where next generations of metrics could be developed and useful as stratifiers and predictors of risk.”

Seeing shifting patterns associated with certain symptoms, he said, is “notable because it suggests that the disturbances of the gut microbiota in PACS are significant.”

But he said it’s important to know whether these changes are a cause of PACS in some way or just an effect of it.

“If causative or contributory – this has to be proven – then ‘microbiota modulation’ would make sense and could be a priority for development,” he said. “If merely an effect, these metrics and better ones to come could be useful as predictors or measures of the patient’s general state of health.”

As seen in his group’s work and other work, he said, “the gut microbiota is highly sensitive to changes in their ecosystem, which is influenced by the health state of the patient.”

Dr. Ng, Dr. Haran, and Dr. Chang reported no relevant disclosures.

This article was updated Jan. 27, 2022.

Disruption of the bacteria in the gut is linked with susceptibility to long COVID-19 syndrome, according to new findings.

While links have been found between the gut’s microbiome and COVID-19, as well as other diseases, this is the first published research to show a link specifically to COVID’s long-term effects, the investigators, based at the Chinese University of Hong Kong, wrote in Gut.

Courtesy Dr. Siew Ng

“To our knowledge, this is the first study to show that altered gut microbiome composition is strongly associated with persistent symptoms in patients with COVID-19 up to 6 months after clearance of SARS-CoV-2 virus,” said Siew Ng, MBBS, PhD, associate director at the university’s Center for Gut Microbiota Research.

At three hospitals, the researchers enrolled 106 patients with COVID-19 from February to August 2020 with stool samples at admission and at 1 month and 6 months after discharge, and compared them with people who did not have COVID, recruited in 2019. The severity of COVID in the enrolled patients was mostly mild to moderate.

At 3 months, 86 of the patients with COVID had post–acute COVID-19 syndrome (PACS) – defined as at least one persistent, otherwise unexplained symptom 4 weeks after clearance of the virus. And 81 patients had PACS at 6 months, most commonly fatigue, poor memory, hair loss, anxiety, and trouble sleeping.

Using stool samples for their analysis, the researchers found that, broadly, the diversity of the types of bacteria, and the abundance of these bacteria, were significantly lower at 6 months for those with PACS, compared with those without PACS and with controls (P < .05 and P < .0001, respectively). Among those with PACS, 28 bacteria species were diminished and 14 were enriched, both at baseline and follow-up. Those patients who had COVID but not PACS showed just 25 alterations of bacteria species at the time of hospital admission, and they all normalized by 6 months.

Having respiratory symptoms at 6 months was linked with higher levels of opportunistic pathogens such as Streptococcus anginosus and S. vestibularis. Neuropsychiatric symptoms and fatigue were associated with nosocomial pathogens that are linked to opportunistic infections, such as Clostridium innocuum and Actinomyces naeslundii (P < .05).

Bacteria known for producing butyrate, a beneficial fatty acid, were significantly depleted in those patients with hair loss. And certain of these bacteria, including Bifidobacterium pseudocatenulatum and Faecalibacterium prausnitzii, had the largest inverse correlations with PACS at 6 months (P < .05), the researchers found.

“Particular gut microbial profiles may indicate heightened susceptibility,” Dr. Ng said.

Although the findings were drawn from patients with earlier strains of the COVID-19 virus, the findings still apply to new variants, including Omicron, since these pose the same problem of persistent disruption of the immune system, Dr. Ng said.

Her group is conducting trials to look at how modulating the microbiome might prevent long COVID and boost antibodies after vaccination in high-risk people, she said.

“Gut microbiota influences the health of the host,” Dr. Ng said. “It provides crucial benefits in the form of immune system development, prevention of infections, nutrient acquisition, and brain and nervous system functionality. Considering the millions of people infected during the ongoing pandemic, our findings are a strong impetus for consideration of microbiota modulation to facilitate timely recovery and reduce the burden of post–acute COVID-19 syndrome.”