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Lp(a) Packs a More Powerful Atherogenic Punch Than LDL
TOPLINE:
While low-density lipoprotein (LDL) particles are much more abundant than lipoprotein(a) [Lp(a)] particles and carry the greatest overall risk for coronary heart disease (CHD), .
METHODOLOGY:
- To compare the atherogenicity of Lp(a) relative to LDL on a per-particle basis, researchers used a genetic analysis because Lp(a) and LDL both contain one apolipoprotein B (apoB) per particle.
- In a genome-wide association study of 502,413 UK Biobank participants, they identified genetic variants uniquely affecting plasma levels of either Lp(a) or LDL particles.
- For these two genetic clusters, they related the change in apoB to the respective change in CHD risk, which allowed them to directly compare the atherogenicity of LDL and Lp(a), particle to particle.
TAKEAWAY:
- The odds ratio for CHD for a 50 nmol/L higher Lp(a)-apoB was 1.28 (95% CI, 1.24-1.33) compared with 1.04 (95% CI, 1.03-1.05) for the same increment in LDL-apoB.
- Additional supporting evidence was provided by using polygenic scores to rank participants according to the difference in Lp(a)-apoB vs LDL-apoB, which revealed a greater risk for CHD per 50 nmol/L apoB for the Lp(a) cluster (hazard ratio [HR], 1.47; 95% CI, 1.36-1.58) than the LDL cluster (HR, 1.04; 95% CI, 1.02-1.05).
- Based on the data, the researchers estimate that the atherogenicity of Lp(a) is roughly sixfold greater (point estimate of 6.6; 95% CI, 5.1-8.8) than that of LDL on a per-particle basis.
IN PRACTICE:
“There are two clinical implications. First, to completely characterize atherosclerotic cardiovascular disease risk, it is imperative to measure Lp(a) in all adult patients at least once. Second, these studies provide a rationale that targeting Lp(a) with potent and specific drugs may lead to clinically meaningful benefit,” wrote the authors of an accompanying commentary on the study.
SOURCE:
The study, with first author Elias Björnson, PhD, University of Gothenburg, Gothenburg, Sweden, and an editorial by Sotirios Tsimikas, MD, University of California, San Diego, and Vera Bittner, MD, University of Alabama at Birmingham, was published in the Journal of the American College of Cardiology.
LIMITATIONS:
The UK Biobank consists primarily of a Caucasian population, and confirmatory studies in more diverse samples are needed. The working range for the Lp(a) assay used in the study did not cover the full range of Lp(a) values seen in the population. Variations in Lp(a)-apoB and LDL-apoB were estimated from genetic analysis and not measured specifically in biochemical assays.
DISCLOSURES:
The study had no commercial funding. Some authors received honoraria from the pharmaceutical industry. A complete list of author disclosures is available with the original article.
A version of this article first appeared on Medscape.com.
TOPLINE:
While low-density lipoprotein (LDL) particles are much more abundant than lipoprotein(a) [Lp(a)] particles and carry the greatest overall risk for coronary heart disease (CHD), .
METHODOLOGY:
- To compare the atherogenicity of Lp(a) relative to LDL on a per-particle basis, researchers used a genetic analysis because Lp(a) and LDL both contain one apolipoprotein B (apoB) per particle.
- In a genome-wide association study of 502,413 UK Biobank participants, they identified genetic variants uniquely affecting plasma levels of either Lp(a) or LDL particles.
- For these two genetic clusters, they related the change in apoB to the respective change in CHD risk, which allowed them to directly compare the atherogenicity of LDL and Lp(a), particle to particle.
TAKEAWAY:
- The odds ratio for CHD for a 50 nmol/L higher Lp(a)-apoB was 1.28 (95% CI, 1.24-1.33) compared with 1.04 (95% CI, 1.03-1.05) for the same increment in LDL-apoB.
- Additional supporting evidence was provided by using polygenic scores to rank participants according to the difference in Lp(a)-apoB vs LDL-apoB, which revealed a greater risk for CHD per 50 nmol/L apoB for the Lp(a) cluster (hazard ratio [HR], 1.47; 95% CI, 1.36-1.58) than the LDL cluster (HR, 1.04; 95% CI, 1.02-1.05).
- Based on the data, the researchers estimate that the atherogenicity of Lp(a) is roughly sixfold greater (point estimate of 6.6; 95% CI, 5.1-8.8) than that of LDL on a per-particle basis.
IN PRACTICE:
“There are two clinical implications. First, to completely characterize atherosclerotic cardiovascular disease risk, it is imperative to measure Lp(a) in all adult patients at least once. Second, these studies provide a rationale that targeting Lp(a) with potent and specific drugs may lead to clinically meaningful benefit,” wrote the authors of an accompanying commentary on the study.
SOURCE:
The study, with first author Elias Björnson, PhD, University of Gothenburg, Gothenburg, Sweden, and an editorial by Sotirios Tsimikas, MD, University of California, San Diego, and Vera Bittner, MD, University of Alabama at Birmingham, was published in the Journal of the American College of Cardiology.
LIMITATIONS:
The UK Biobank consists primarily of a Caucasian population, and confirmatory studies in more diverse samples are needed. The working range for the Lp(a) assay used in the study did not cover the full range of Lp(a) values seen in the population. Variations in Lp(a)-apoB and LDL-apoB were estimated from genetic analysis and not measured specifically in biochemical assays.
DISCLOSURES:
The study had no commercial funding. Some authors received honoraria from the pharmaceutical industry. A complete list of author disclosures is available with the original article.
A version of this article first appeared on Medscape.com.
TOPLINE:
While low-density lipoprotein (LDL) particles are much more abundant than lipoprotein(a) [Lp(a)] particles and carry the greatest overall risk for coronary heart disease (CHD), .
METHODOLOGY:
- To compare the atherogenicity of Lp(a) relative to LDL on a per-particle basis, researchers used a genetic analysis because Lp(a) and LDL both contain one apolipoprotein B (apoB) per particle.
- In a genome-wide association study of 502,413 UK Biobank participants, they identified genetic variants uniquely affecting plasma levels of either Lp(a) or LDL particles.
- For these two genetic clusters, they related the change in apoB to the respective change in CHD risk, which allowed them to directly compare the atherogenicity of LDL and Lp(a), particle to particle.
TAKEAWAY:
- The odds ratio for CHD for a 50 nmol/L higher Lp(a)-apoB was 1.28 (95% CI, 1.24-1.33) compared with 1.04 (95% CI, 1.03-1.05) for the same increment in LDL-apoB.
- Additional supporting evidence was provided by using polygenic scores to rank participants according to the difference in Lp(a)-apoB vs LDL-apoB, which revealed a greater risk for CHD per 50 nmol/L apoB for the Lp(a) cluster (hazard ratio [HR], 1.47; 95% CI, 1.36-1.58) than the LDL cluster (HR, 1.04; 95% CI, 1.02-1.05).
- Based on the data, the researchers estimate that the atherogenicity of Lp(a) is roughly sixfold greater (point estimate of 6.6; 95% CI, 5.1-8.8) than that of LDL on a per-particle basis.
IN PRACTICE:
“There are two clinical implications. First, to completely characterize atherosclerotic cardiovascular disease risk, it is imperative to measure Lp(a) in all adult patients at least once. Second, these studies provide a rationale that targeting Lp(a) with potent and specific drugs may lead to clinically meaningful benefit,” wrote the authors of an accompanying commentary on the study.
SOURCE:
The study, with first author Elias Björnson, PhD, University of Gothenburg, Gothenburg, Sweden, and an editorial by Sotirios Tsimikas, MD, University of California, San Diego, and Vera Bittner, MD, University of Alabama at Birmingham, was published in the Journal of the American College of Cardiology.
LIMITATIONS:
The UK Biobank consists primarily of a Caucasian population, and confirmatory studies in more diverse samples are needed. The working range for the Lp(a) assay used in the study did not cover the full range of Lp(a) values seen in the population. Variations in Lp(a)-apoB and LDL-apoB were estimated from genetic analysis and not measured specifically in biochemical assays.
DISCLOSURES:
The study had no commercial funding. Some authors received honoraria from the pharmaceutical industry. A complete list of author disclosures is available with the original article.
A version of this article first appeared on Medscape.com.
ALL: When Should MRD Trigger Stem Cell Transplants?
Allogeneic hematopoietic stem cell transplants (HSCT) are still part of the hematology armamentarium for relapsed/refractory (R/R) patients with Ph-negative ALL who are MRD positive. However, when asked about the best treatment strategy for patients who are MRD-negative, hematologist Mark R. Litzow, MD, of the Mayo Clinic in Rochester, Minnesota, said in an interview, “There is no firm consensus about that.”
Discussing how medicine has evolved over the past 20 to 30 years, Dr. Litzow recalled that HSCT used to be standard treatment for adult patients with ALL. “We felt that in most instances, chemotherapy alone was not going to be effective in curing them. A vast majority would relapse,” he said. Nowadays, however, specialists differ on the use of HSCT in patients with Ph-negative, MRD-negative ALL.
A pair of commentaries in the January issue of The Lancet Hematology tackle this topic from different perspectives. On one hand, hematologist Patrice Chevallier, MD, of the University of Nantes in France, argues that for such patients, HSCT “remains a valid option,”and MRD status shouldn’t be the sole factor used for a decision.
However, hematologist Nicolas Boissel, MD, PhD, of Paris Cité University, contends that detectable early MRD is the “only robust predictor” of HSCT benefit in patients under 60 with Ph-negative ALL, and it has “unproven” benefit in older patients.
As Dr. Chevallier notes, “allogeneic HSCT is indicated in patients defined as having a high risk of relapse. Currently, a high level of residual leukemic cells after treatment is recognized as the strongest, and sometimes sole, criterion defining high-risk patients.”
As first- and second-line therapy in pediatric patients and as first-line therapy in adults, the “rule” is to offer HSCT to MRD-positive patients but not MRD-negative ones, he writes. “In older patients and those who are relapsed or refractory, the recent demonstration of efficient immunotherapies and cell therapies has launched the debate on the role of MRD status and the question of whether or not to transplant patients who are MRD-negative in both settings.”
Dr. Chevallier notes that “there is no standard definition of an MRD-negative status,” and the best timing for evaluation is unknown. Further, he adds, a “variable proportion of MRD-negative patients still relapse after treatment — up to 25% of patients who respond early and more than 50% of patients who respond late.”
He also points out that there’s an 80% chance that patients will convert from MRD negative to MRD positive after blinatumomab therapy, and he highlights the low long-term survival rate (20%) after brexucabtagene autoleucel (Tecartus), a CAR T-cell therapy.
As for older patients, Dr. Chevallier observes that improved chemo-immunotherapy and conditioning regimens could spark a rethinking of the feasibility of HSCT. However, for now, in those patients, “MRD is not decisional, and allogeneic HSCT is not a routine practice,” he writes.
In his commentary, Dr. Boissel points out that there have been no controlled studies of HSCT in the first-remission setting, although he writes that some data suggests that HSCT may be helpful for patients in high-risk genetic subgroups, regardless of MRD status. On the other hand, “converging observations suggest no benefit of HSCT in MRD-positive patients treated with blinatumomab in the front-line setting.”
If MRD monitoring is unavailable, Dr. Boissel adds, “it seems reasonable to use early blast clearance or other baseline high-risk features to indicate HSCT.”
How can hematologists make the best decision about HSCT?
In an interview, City of Hope Medical Center (Duarte, California) hematologist-oncologist Ibrahim T. Aldoss, MD, said that chemotherapy — with or without immunotherapy — can often be enough to treat younger patients without high-risk genetic factors. “Potentially, these patients can be spared from transplants,” he said, although patients with resistant MRD “clearly need transplants.”
The risks of transplants are significant, he noted. While they can reduce the risk of relapse, the risk of dying during remission is higher vs chemotherapy. “So you have to balance the risks that you’re willing to take,” he said, keeping in mind that some patients can be cured with chemotherapy.
In addition, Dr. Aldoss said, acute graft-versus-host disease in the first few months after transplant can become chronic. “Many years later, patients can be struggling to where it actually impacts their daily activity. And unfortunately, patients can die from it.”
In the big picture, “you cannot have a generalized statement about whether you shouldn’t do transplants in every MRD-negative patient,” he said. However, “if you do achieve MRD negativity, most patients likely don’t need transplants.”
The Mayo Clinic’s Dr. Litzow urged colleagues to consider several factors when making decisions. Do patients have a high level of comorbidities that would raise the risk of death from HSCT? He noted that there’s nearly a 20% risk of death from HSCT, and comorbidities can boost the risk to 40%-50%.
Also, does the patient have a suitable donor? While advances have boosted the number of eligible donors, he said, “not everybody has an ideal donor.”
If a patient is MRD-negative but not a good candidate for a transplant, Dr. Litzow said consolidation therapy followed by maintenance therapy may be indicated. “Continue to check their bone marrow and their blood periodically as they’re going through treatment and reassess their MRD status to make sure they’re staying negative. If they turn MRD-positive during the course of their therapy, then we have to step back and rethink the role of transplant.”
As for cost, Dr. Litzow points out that HSCT is very expensive, although ALL is an accepted indication for HSCT. However, “if someone doesn’t have medical insurance, then it can be difficult to consider them having a transplant.”
What’s next? In his commentary, Dr. Boissel writes that his team aims to study whether HSCT is helpful in patients with high-risk B-cell ALL “who reach MRD negativity after a consolidation phase including blinatumomab.”
Dr. Aldoss discloses relationships with Amgen, Kite, Pfizer, Jazz, AbbVie, Sobi, Agios, Autolus, and MacroGenics. Dr. Litzow reports ties with Amgen. Dr. Boissel declares relationships with Amgen, Pfizer, Novartis, and Servier. Dr. Chevallier has no disclosures.
Allogeneic hematopoietic stem cell transplants (HSCT) are still part of the hematology armamentarium for relapsed/refractory (R/R) patients with Ph-negative ALL who are MRD positive. However, when asked about the best treatment strategy for patients who are MRD-negative, hematologist Mark R. Litzow, MD, of the Mayo Clinic in Rochester, Minnesota, said in an interview, “There is no firm consensus about that.”
Discussing how medicine has evolved over the past 20 to 30 years, Dr. Litzow recalled that HSCT used to be standard treatment for adult patients with ALL. “We felt that in most instances, chemotherapy alone was not going to be effective in curing them. A vast majority would relapse,” he said. Nowadays, however, specialists differ on the use of HSCT in patients with Ph-negative, MRD-negative ALL.
A pair of commentaries in the January issue of The Lancet Hematology tackle this topic from different perspectives. On one hand, hematologist Patrice Chevallier, MD, of the University of Nantes in France, argues that for such patients, HSCT “remains a valid option,”and MRD status shouldn’t be the sole factor used for a decision.
However, hematologist Nicolas Boissel, MD, PhD, of Paris Cité University, contends that detectable early MRD is the “only robust predictor” of HSCT benefit in patients under 60 with Ph-negative ALL, and it has “unproven” benefit in older patients.
As Dr. Chevallier notes, “allogeneic HSCT is indicated in patients defined as having a high risk of relapse. Currently, a high level of residual leukemic cells after treatment is recognized as the strongest, and sometimes sole, criterion defining high-risk patients.”
As first- and second-line therapy in pediatric patients and as first-line therapy in adults, the “rule” is to offer HSCT to MRD-positive patients but not MRD-negative ones, he writes. “In older patients and those who are relapsed or refractory, the recent demonstration of efficient immunotherapies and cell therapies has launched the debate on the role of MRD status and the question of whether or not to transplant patients who are MRD-negative in both settings.”
Dr. Chevallier notes that “there is no standard definition of an MRD-negative status,” and the best timing for evaluation is unknown. Further, he adds, a “variable proportion of MRD-negative patients still relapse after treatment — up to 25% of patients who respond early and more than 50% of patients who respond late.”
He also points out that there’s an 80% chance that patients will convert from MRD negative to MRD positive after blinatumomab therapy, and he highlights the low long-term survival rate (20%) after brexucabtagene autoleucel (Tecartus), a CAR T-cell therapy.
As for older patients, Dr. Chevallier observes that improved chemo-immunotherapy and conditioning regimens could spark a rethinking of the feasibility of HSCT. However, for now, in those patients, “MRD is not decisional, and allogeneic HSCT is not a routine practice,” he writes.
In his commentary, Dr. Boissel points out that there have been no controlled studies of HSCT in the first-remission setting, although he writes that some data suggests that HSCT may be helpful for patients in high-risk genetic subgroups, regardless of MRD status. On the other hand, “converging observations suggest no benefit of HSCT in MRD-positive patients treated with blinatumomab in the front-line setting.”
If MRD monitoring is unavailable, Dr. Boissel adds, “it seems reasonable to use early blast clearance or other baseline high-risk features to indicate HSCT.”
How can hematologists make the best decision about HSCT?
In an interview, City of Hope Medical Center (Duarte, California) hematologist-oncologist Ibrahim T. Aldoss, MD, said that chemotherapy — with or without immunotherapy — can often be enough to treat younger patients without high-risk genetic factors. “Potentially, these patients can be spared from transplants,” he said, although patients with resistant MRD “clearly need transplants.”
The risks of transplants are significant, he noted. While they can reduce the risk of relapse, the risk of dying during remission is higher vs chemotherapy. “So you have to balance the risks that you’re willing to take,” he said, keeping in mind that some patients can be cured with chemotherapy.
In addition, Dr. Aldoss said, acute graft-versus-host disease in the first few months after transplant can become chronic. “Many years later, patients can be struggling to where it actually impacts their daily activity. And unfortunately, patients can die from it.”
In the big picture, “you cannot have a generalized statement about whether you shouldn’t do transplants in every MRD-negative patient,” he said. However, “if you do achieve MRD negativity, most patients likely don’t need transplants.”
The Mayo Clinic’s Dr. Litzow urged colleagues to consider several factors when making decisions. Do patients have a high level of comorbidities that would raise the risk of death from HSCT? He noted that there’s nearly a 20% risk of death from HSCT, and comorbidities can boost the risk to 40%-50%.
Also, does the patient have a suitable donor? While advances have boosted the number of eligible donors, he said, “not everybody has an ideal donor.”
If a patient is MRD-negative but not a good candidate for a transplant, Dr. Litzow said consolidation therapy followed by maintenance therapy may be indicated. “Continue to check their bone marrow and their blood periodically as they’re going through treatment and reassess their MRD status to make sure they’re staying negative. If they turn MRD-positive during the course of their therapy, then we have to step back and rethink the role of transplant.”
As for cost, Dr. Litzow points out that HSCT is very expensive, although ALL is an accepted indication for HSCT. However, “if someone doesn’t have medical insurance, then it can be difficult to consider them having a transplant.”
What’s next? In his commentary, Dr. Boissel writes that his team aims to study whether HSCT is helpful in patients with high-risk B-cell ALL “who reach MRD negativity after a consolidation phase including blinatumomab.”
Dr. Aldoss discloses relationships with Amgen, Kite, Pfizer, Jazz, AbbVie, Sobi, Agios, Autolus, and MacroGenics. Dr. Litzow reports ties with Amgen. Dr. Boissel declares relationships with Amgen, Pfizer, Novartis, and Servier. Dr. Chevallier has no disclosures.
Allogeneic hematopoietic stem cell transplants (HSCT) are still part of the hematology armamentarium for relapsed/refractory (R/R) patients with Ph-negative ALL who are MRD positive. However, when asked about the best treatment strategy for patients who are MRD-negative, hematologist Mark R. Litzow, MD, of the Mayo Clinic in Rochester, Minnesota, said in an interview, “There is no firm consensus about that.”
Discussing how medicine has evolved over the past 20 to 30 years, Dr. Litzow recalled that HSCT used to be standard treatment for adult patients with ALL. “We felt that in most instances, chemotherapy alone was not going to be effective in curing them. A vast majority would relapse,” he said. Nowadays, however, specialists differ on the use of HSCT in patients with Ph-negative, MRD-negative ALL.
A pair of commentaries in the January issue of The Lancet Hematology tackle this topic from different perspectives. On one hand, hematologist Patrice Chevallier, MD, of the University of Nantes in France, argues that for such patients, HSCT “remains a valid option,”and MRD status shouldn’t be the sole factor used for a decision.
However, hematologist Nicolas Boissel, MD, PhD, of Paris Cité University, contends that detectable early MRD is the “only robust predictor” of HSCT benefit in patients under 60 with Ph-negative ALL, and it has “unproven” benefit in older patients.
As Dr. Chevallier notes, “allogeneic HSCT is indicated in patients defined as having a high risk of relapse. Currently, a high level of residual leukemic cells after treatment is recognized as the strongest, and sometimes sole, criterion defining high-risk patients.”
As first- and second-line therapy in pediatric patients and as first-line therapy in adults, the “rule” is to offer HSCT to MRD-positive patients but not MRD-negative ones, he writes. “In older patients and those who are relapsed or refractory, the recent demonstration of efficient immunotherapies and cell therapies has launched the debate on the role of MRD status and the question of whether or not to transplant patients who are MRD-negative in both settings.”
Dr. Chevallier notes that “there is no standard definition of an MRD-negative status,” and the best timing for evaluation is unknown. Further, he adds, a “variable proportion of MRD-negative patients still relapse after treatment — up to 25% of patients who respond early and more than 50% of patients who respond late.”
He also points out that there’s an 80% chance that patients will convert from MRD negative to MRD positive after blinatumomab therapy, and he highlights the low long-term survival rate (20%) after brexucabtagene autoleucel (Tecartus), a CAR T-cell therapy.
As for older patients, Dr. Chevallier observes that improved chemo-immunotherapy and conditioning regimens could spark a rethinking of the feasibility of HSCT. However, for now, in those patients, “MRD is not decisional, and allogeneic HSCT is not a routine practice,” he writes.
In his commentary, Dr. Boissel points out that there have been no controlled studies of HSCT in the first-remission setting, although he writes that some data suggests that HSCT may be helpful for patients in high-risk genetic subgroups, regardless of MRD status. On the other hand, “converging observations suggest no benefit of HSCT in MRD-positive patients treated with blinatumomab in the front-line setting.”
If MRD monitoring is unavailable, Dr. Boissel adds, “it seems reasonable to use early blast clearance or other baseline high-risk features to indicate HSCT.”
How can hematologists make the best decision about HSCT?
In an interview, City of Hope Medical Center (Duarte, California) hematologist-oncologist Ibrahim T. Aldoss, MD, said that chemotherapy — with or without immunotherapy — can often be enough to treat younger patients without high-risk genetic factors. “Potentially, these patients can be spared from transplants,” he said, although patients with resistant MRD “clearly need transplants.”
The risks of transplants are significant, he noted. While they can reduce the risk of relapse, the risk of dying during remission is higher vs chemotherapy. “So you have to balance the risks that you’re willing to take,” he said, keeping in mind that some patients can be cured with chemotherapy.
In addition, Dr. Aldoss said, acute graft-versus-host disease in the first few months after transplant can become chronic. “Many years later, patients can be struggling to where it actually impacts their daily activity. And unfortunately, patients can die from it.”
In the big picture, “you cannot have a generalized statement about whether you shouldn’t do transplants in every MRD-negative patient,” he said. However, “if you do achieve MRD negativity, most patients likely don’t need transplants.”
The Mayo Clinic’s Dr. Litzow urged colleagues to consider several factors when making decisions. Do patients have a high level of comorbidities that would raise the risk of death from HSCT? He noted that there’s nearly a 20% risk of death from HSCT, and comorbidities can boost the risk to 40%-50%.
Also, does the patient have a suitable donor? While advances have boosted the number of eligible donors, he said, “not everybody has an ideal donor.”
If a patient is MRD-negative but not a good candidate for a transplant, Dr. Litzow said consolidation therapy followed by maintenance therapy may be indicated. “Continue to check their bone marrow and their blood periodically as they’re going through treatment and reassess their MRD status to make sure they’re staying negative. If they turn MRD-positive during the course of their therapy, then we have to step back and rethink the role of transplant.”
As for cost, Dr. Litzow points out that HSCT is very expensive, although ALL is an accepted indication for HSCT. However, “if someone doesn’t have medical insurance, then it can be difficult to consider them having a transplant.”
What’s next? In his commentary, Dr. Boissel writes that his team aims to study whether HSCT is helpful in patients with high-risk B-cell ALL “who reach MRD negativity after a consolidation phase including blinatumomab.”
Dr. Aldoss discloses relationships with Amgen, Kite, Pfizer, Jazz, AbbVie, Sobi, Agios, Autolus, and MacroGenics. Dr. Litzow reports ties with Amgen. Dr. Boissel declares relationships with Amgen, Pfizer, Novartis, and Servier. Dr. Chevallier has no disclosures.
First Cases of Medically Acquired Alzheimer’s Disease Reported
Five people in the United Kingdom have been diagnosed with Alzheimer’s disease resulting from a medical treatment they received decades earlier, new research shows.
The individuals received treatment as children with human growth hormone extracted from pituitary glands of cadavers (c-hGH). Between 1958-1985, an estimated 30,000 people worldwide, mostly children, were treated with c-hGH for genetic disorders and growth hormone deficiencies.
The therapy was halted in 1985 after three patients in the US who received the treatment later died of Creutzfeldt-Jakob disease (CJD) transmitted through batches of c-hGH that were contaminated with disease-causing prions.
The new study builds on the investigators’ earlier work that showed the batches of c-hGH also contained amyloid-beta protein and that the protein could be transmitted decades later. These five cases were referred to or reviewed by researchers and clinicians at a prion clinic led by one of the lead researchers.
There are no reports of amyloid-beta transmission through any other medical or surgical procedures, researchers stress, and there is no evidence that amyloid-beta can be passed on during routine patient care or in daily activities.
“However, the recognition of transmission of amyloid-beta pathology in these rare situations should lead us to review measures to prevent accidental transmission via other medical or surgical procedures, in order to prevent such cases occurring in future,” lead author John Collinge, MD, director of the University of College London Institute of Prion Diseases, London, England, and leader of the UK’s National Prion Clinic, said in a press release.
“Importantly, our findings also suggest that Alzheimer’s and some other neurological conditions share similar disease processes to CJD, and this may have important implications for understanding and treating Alzheimer’s disease in the future,” Dr. Collinge continued.
The findings were published online January 29 in Nature Medicine.
Building on Earlier Work
The research builds on investigators’ previous 2015 work that found archived samples of c-hGH were also contaminated with amyloid-beta protein. In 2018, mouse studies showed that c-hGH samples stored for decades could still transmit amyloid-beta via injection.
Researchers said the findings suggested that individuals exposed to contaminated c-hGH who did not die from CJD might eventually develop AD.
Patients in the new study developed neurological symptoms consistent with AD between the ages of 38 and 55 years. The individual cases were either referred to or reviewed by experts in the National Prion Clinic in the UK between 2017 and 2022. The clinic coordinates the National Prion Monitoring Cohort, a longitudinal study of individuals with confirmed prion diseases.
Of the eight cases, three were diagnosed with AD before referral to the clinic; two others met criteria for an AD diagnosis; and three did not meet the criteria. Three of the patients — two of whom had AD — are now deceased.
All patients in the study received c-hGH prepared using a method called Wilhelmi or Hartree-modified Wilhelmi preparation (HWP).
Biomarker analyses confirmed the AD diagnosis in two patients. Other cases showed either progressive brain volume loss on brain imaging or elevated cerebrospinal fluid total tau and phosphorylated tau, or evidence of amyloid-beta deposits on autopsy.
‘Potentially Transmissible’
The cases offered diverse presentations. Some were not symptomatic and some failed to meet current diagnostic criteria for sporadic Alzheimer’s disease. Treatment duration and frequency differed among those in the study, as did their age at treatment onset and completion. That and other factors could contribute to the diverse phenotype recorded in individuals, investigators note.
Investigators examined and ruled out other factors that might explain the individuals’ cognitive symptoms, including childhood intellectual disability, which has been linked to dementia risk, the underlying condition that prompted their treatment with c-hGH, growth hormone deficiency, and cranial radiotherapy, which four of the individuals had received. They also ruled out inherited disease in all five of the cases with samples available for testing.
“Taken together, the only factor common to all of the patients whom we describe is treatment with the HWP subtype of c-hGH,” the authors write. “Given the strong experimental evidence for A-beta transmission from relevant archived HWP c-hGH batches, we conclude that this is the most plausible explanation for the findings observed.”
Investigators say the findings show that, like other prion diseases, AD has three etiologies: sporadic, inherited, and rare acquired forms, or iatrogenic AD.
“The clinical syndrome developed by these individuals can, therefore, be termed iatrogenic Alzheimer’s disease, and Alzheimer’s disease should now be recognized as a potentially transmissible disorder,” the authors write.
“Our cases suggest that, similarly to what is observed in human prion diseases, iatrogenic forms of Alzheimer’s disease differ phenotypically from sporadic and inherited forms, with some individuals remaining asymptomatic despite exposure to A-beta seeds due to protective factors that, at present, are unknown,” they continue
‘Measure of Skepticism’
In an accompanying editorial, Mathias Jucker, PhD, of the Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany, and Lary C. Walker, PhD, in the Department of Neurology at Emory University, Atlanta, write that the findings should be considered “with a measure of skepticism.”
“The cases presented are diverse and complicated; the individuals had undergone a variety of medical interventions for various disorders earlier in life, and it is difficult to exclude a contribution of these circumstances to the complex disease phenotypes that appeared many years later,” they write.
However, they continue, “there is good reason to take the findings seriously.”
“From a practical standpoint, this report reinforces the potential of amyloid-beta seeds as targets for early prevention, and it underscores the importance of informed caution in the preparation of surgical instruments, handling of tissues, and implementation of therapeutic biologics, particularly those derived from human sources,” Dr. Jucker and Dr. Walker write.
Commenting on the findings for this news organization, Christopher Weber, PhD, director of global science initiatives for the Alzheimer’s Association, says the idea that amyloid-beta is transmissible between individuals has been shown before.
“We’ve known for a long time that it is possible to create abnormal amyloid buildup — similar to that seen in Alzheimer’s – in the brain of an animal by injecting it with amyloid-beta. We also transfer human Alzheimer’s genes into animals to initiate abnormal, Alzheimer’s-like processes in their brains,” he said. “Thus, the idea that amyloid is transferable between individuals is not so novel as implied in the new paper.”
However, the study does highlight the importance of safety measures to prevent the accidental transmission of amyloid-beta, Weber added.
“It is a reasonable and actionable caution that the scientific and clinical communities must understand the possible risks and ensure that all methods of transmission are eliminated — for example, with complete and conscientious sterilization of surgical instruments,” he said. “Bottom line: We shouldn’t put amyloid-beta into people’s brains, either accidentally or on purpose, and appropriate measures should be in place to ensure that doesn’t happen.”
The study was supported by the Medical Research Council, the National Institute for Health and Care Research (NIHR), the NIHR University College of London Hospital Biomedical Research Centre, Alzheimer’s Research UK, and the Stroke Association. Dr. Collinge is a shareholder and director of D-Gen, Ltd., an academic spin-out company working in the field of prion disease diagnosis, decontamination and therapeutics. Dr. Jucker and Dr. Walker report no conflicts of interest.
A version of this article appeared on Medscape.com.
Five people in the United Kingdom have been diagnosed with Alzheimer’s disease resulting from a medical treatment they received decades earlier, new research shows.
The individuals received treatment as children with human growth hormone extracted from pituitary glands of cadavers (c-hGH). Between 1958-1985, an estimated 30,000 people worldwide, mostly children, were treated with c-hGH for genetic disorders and growth hormone deficiencies.
The therapy was halted in 1985 after three patients in the US who received the treatment later died of Creutzfeldt-Jakob disease (CJD) transmitted through batches of c-hGH that were contaminated with disease-causing prions.
The new study builds on the investigators’ earlier work that showed the batches of c-hGH also contained amyloid-beta protein and that the protein could be transmitted decades later. These five cases were referred to or reviewed by researchers and clinicians at a prion clinic led by one of the lead researchers.
There are no reports of amyloid-beta transmission through any other medical or surgical procedures, researchers stress, and there is no evidence that amyloid-beta can be passed on during routine patient care or in daily activities.
“However, the recognition of transmission of amyloid-beta pathology in these rare situations should lead us to review measures to prevent accidental transmission via other medical or surgical procedures, in order to prevent such cases occurring in future,” lead author John Collinge, MD, director of the University of College London Institute of Prion Diseases, London, England, and leader of the UK’s National Prion Clinic, said in a press release.
“Importantly, our findings also suggest that Alzheimer’s and some other neurological conditions share similar disease processes to CJD, and this may have important implications for understanding and treating Alzheimer’s disease in the future,” Dr. Collinge continued.
The findings were published online January 29 in Nature Medicine.
Building on Earlier Work
The research builds on investigators’ previous 2015 work that found archived samples of c-hGH were also contaminated with amyloid-beta protein. In 2018, mouse studies showed that c-hGH samples stored for decades could still transmit amyloid-beta via injection.
Researchers said the findings suggested that individuals exposed to contaminated c-hGH who did not die from CJD might eventually develop AD.
Patients in the new study developed neurological symptoms consistent with AD between the ages of 38 and 55 years. The individual cases were either referred to or reviewed by experts in the National Prion Clinic in the UK between 2017 and 2022. The clinic coordinates the National Prion Monitoring Cohort, a longitudinal study of individuals with confirmed prion diseases.
Of the eight cases, three were diagnosed with AD before referral to the clinic; two others met criteria for an AD diagnosis; and three did not meet the criteria. Three of the patients — two of whom had AD — are now deceased.
All patients in the study received c-hGH prepared using a method called Wilhelmi or Hartree-modified Wilhelmi preparation (HWP).
Biomarker analyses confirmed the AD diagnosis in two patients. Other cases showed either progressive brain volume loss on brain imaging or elevated cerebrospinal fluid total tau and phosphorylated tau, or evidence of amyloid-beta deposits on autopsy.
‘Potentially Transmissible’
The cases offered diverse presentations. Some were not symptomatic and some failed to meet current diagnostic criteria for sporadic Alzheimer’s disease. Treatment duration and frequency differed among those in the study, as did their age at treatment onset and completion. That and other factors could contribute to the diverse phenotype recorded in individuals, investigators note.
Investigators examined and ruled out other factors that might explain the individuals’ cognitive symptoms, including childhood intellectual disability, which has been linked to dementia risk, the underlying condition that prompted their treatment with c-hGH, growth hormone deficiency, and cranial radiotherapy, which four of the individuals had received. They also ruled out inherited disease in all five of the cases with samples available for testing.
“Taken together, the only factor common to all of the patients whom we describe is treatment with the HWP subtype of c-hGH,” the authors write. “Given the strong experimental evidence for A-beta transmission from relevant archived HWP c-hGH batches, we conclude that this is the most plausible explanation for the findings observed.”
Investigators say the findings show that, like other prion diseases, AD has three etiologies: sporadic, inherited, and rare acquired forms, or iatrogenic AD.
“The clinical syndrome developed by these individuals can, therefore, be termed iatrogenic Alzheimer’s disease, and Alzheimer’s disease should now be recognized as a potentially transmissible disorder,” the authors write.
“Our cases suggest that, similarly to what is observed in human prion diseases, iatrogenic forms of Alzheimer’s disease differ phenotypically from sporadic and inherited forms, with some individuals remaining asymptomatic despite exposure to A-beta seeds due to protective factors that, at present, are unknown,” they continue
‘Measure of Skepticism’
In an accompanying editorial, Mathias Jucker, PhD, of the Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany, and Lary C. Walker, PhD, in the Department of Neurology at Emory University, Atlanta, write that the findings should be considered “with a measure of skepticism.”
“The cases presented are diverse and complicated; the individuals had undergone a variety of medical interventions for various disorders earlier in life, and it is difficult to exclude a contribution of these circumstances to the complex disease phenotypes that appeared many years later,” they write.
However, they continue, “there is good reason to take the findings seriously.”
“From a practical standpoint, this report reinforces the potential of amyloid-beta seeds as targets for early prevention, and it underscores the importance of informed caution in the preparation of surgical instruments, handling of tissues, and implementation of therapeutic biologics, particularly those derived from human sources,” Dr. Jucker and Dr. Walker write.
Commenting on the findings for this news organization, Christopher Weber, PhD, director of global science initiatives for the Alzheimer’s Association, says the idea that amyloid-beta is transmissible between individuals has been shown before.
“We’ve known for a long time that it is possible to create abnormal amyloid buildup — similar to that seen in Alzheimer’s – in the brain of an animal by injecting it with amyloid-beta. We also transfer human Alzheimer’s genes into animals to initiate abnormal, Alzheimer’s-like processes in their brains,” he said. “Thus, the idea that amyloid is transferable between individuals is not so novel as implied in the new paper.”
However, the study does highlight the importance of safety measures to prevent the accidental transmission of amyloid-beta, Weber added.
“It is a reasonable and actionable caution that the scientific and clinical communities must understand the possible risks and ensure that all methods of transmission are eliminated — for example, with complete and conscientious sterilization of surgical instruments,” he said. “Bottom line: We shouldn’t put amyloid-beta into people’s brains, either accidentally or on purpose, and appropriate measures should be in place to ensure that doesn’t happen.”
The study was supported by the Medical Research Council, the National Institute for Health and Care Research (NIHR), the NIHR University College of London Hospital Biomedical Research Centre, Alzheimer’s Research UK, and the Stroke Association. Dr. Collinge is a shareholder and director of D-Gen, Ltd., an academic spin-out company working in the field of prion disease diagnosis, decontamination and therapeutics. Dr. Jucker and Dr. Walker report no conflicts of interest.
A version of this article appeared on Medscape.com.
Five people in the United Kingdom have been diagnosed with Alzheimer’s disease resulting from a medical treatment they received decades earlier, new research shows.
The individuals received treatment as children with human growth hormone extracted from pituitary glands of cadavers (c-hGH). Between 1958-1985, an estimated 30,000 people worldwide, mostly children, were treated with c-hGH for genetic disorders and growth hormone deficiencies.
The therapy was halted in 1985 after three patients in the US who received the treatment later died of Creutzfeldt-Jakob disease (CJD) transmitted through batches of c-hGH that were contaminated with disease-causing prions.
The new study builds on the investigators’ earlier work that showed the batches of c-hGH also contained amyloid-beta protein and that the protein could be transmitted decades later. These five cases were referred to or reviewed by researchers and clinicians at a prion clinic led by one of the lead researchers.
There are no reports of amyloid-beta transmission through any other medical or surgical procedures, researchers stress, and there is no evidence that amyloid-beta can be passed on during routine patient care or in daily activities.
“However, the recognition of transmission of amyloid-beta pathology in these rare situations should lead us to review measures to prevent accidental transmission via other medical or surgical procedures, in order to prevent such cases occurring in future,” lead author John Collinge, MD, director of the University of College London Institute of Prion Diseases, London, England, and leader of the UK’s National Prion Clinic, said in a press release.
“Importantly, our findings also suggest that Alzheimer’s and some other neurological conditions share similar disease processes to CJD, and this may have important implications for understanding and treating Alzheimer’s disease in the future,” Dr. Collinge continued.
The findings were published online January 29 in Nature Medicine.
Building on Earlier Work
The research builds on investigators’ previous 2015 work that found archived samples of c-hGH were also contaminated with amyloid-beta protein. In 2018, mouse studies showed that c-hGH samples stored for decades could still transmit amyloid-beta via injection.
Researchers said the findings suggested that individuals exposed to contaminated c-hGH who did not die from CJD might eventually develop AD.
Patients in the new study developed neurological symptoms consistent with AD between the ages of 38 and 55 years. The individual cases were either referred to or reviewed by experts in the National Prion Clinic in the UK between 2017 and 2022. The clinic coordinates the National Prion Monitoring Cohort, a longitudinal study of individuals with confirmed prion diseases.
Of the eight cases, three were diagnosed with AD before referral to the clinic; two others met criteria for an AD diagnosis; and three did not meet the criteria. Three of the patients — two of whom had AD — are now deceased.
All patients in the study received c-hGH prepared using a method called Wilhelmi or Hartree-modified Wilhelmi preparation (HWP).
Biomarker analyses confirmed the AD diagnosis in two patients. Other cases showed either progressive brain volume loss on brain imaging or elevated cerebrospinal fluid total tau and phosphorylated tau, or evidence of amyloid-beta deposits on autopsy.
‘Potentially Transmissible’
The cases offered diverse presentations. Some were not symptomatic and some failed to meet current diagnostic criteria for sporadic Alzheimer’s disease. Treatment duration and frequency differed among those in the study, as did their age at treatment onset and completion. That and other factors could contribute to the diverse phenotype recorded in individuals, investigators note.
Investigators examined and ruled out other factors that might explain the individuals’ cognitive symptoms, including childhood intellectual disability, which has been linked to dementia risk, the underlying condition that prompted their treatment with c-hGH, growth hormone deficiency, and cranial radiotherapy, which four of the individuals had received. They also ruled out inherited disease in all five of the cases with samples available for testing.
“Taken together, the only factor common to all of the patients whom we describe is treatment with the HWP subtype of c-hGH,” the authors write. “Given the strong experimental evidence for A-beta transmission from relevant archived HWP c-hGH batches, we conclude that this is the most plausible explanation for the findings observed.”
Investigators say the findings show that, like other prion diseases, AD has three etiologies: sporadic, inherited, and rare acquired forms, or iatrogenic AD.
“The clinical syndrome developed by these individuals can, therefore, be termed iatrogenic Alzheimer’s disease, and Alzheimer’s disease should now be recognized as a potentially transmissible disorder,” the authors write.
“Our cases suggest that, similarly to what is observed in human prion diseases, iatrogenic forms of Alzheimer’s disease differ phenotypically from sporadic and inherited forms, with some individuals remaining asymptomatic despite exposure to A-beta seeds due to protective factors that, at present, are unknown,” they continue
‘Measure of Skepticism’
In an accompanying editorial, Mathias Jucker, PhD, of the Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany, and Lary C. Walker, PhD, in the Department of Neurology at Emory University, Atlanta, write that the findings should be considered “with a measure of skepticism.”
“The cases presented are diverse and complicated; the individuals had undergone a variety of medical interventions for various disorders earlier in life, and it is difficult to exclude a contribution of these circumstances to the complex disease phenotypes that appeared many years later,” they write.
However, they continue, “there is good reason to take the findings seriously.”
“From a practical standpoint, this report reinforces the potential of amyloid-beta seeds as targets for early prevention, and it underscores the importance of informed caution in the preparation of surgical instruments, handling of tissues, and implementation of therapeutic biologics, particularly those derived from human sources,” Dr. Jucker and Dr. Walker write.
Commenting on the findings for this news organization, Christopher Weber, PhD, director of global science initiatives for the Alzheimer’s Association, says the idea that amyloid-beta is transmissible between individuals has been shown before.
“We’ve known for a long time that it is possible to create abnormal amyloid buildup — similar to that seen in Alzheimer’s – in the brain of an animal by injecting it with amyloid-beta. We also transfer human Alzheimer’s genes into animals to initiate abnormal, Alzheimer’s-like processes in their brains,” he said. “Thus, the idea that amyloid is transferable between individuals is not so novel as implied in the new paper.”
However, the study does highlight the importance of safety measures to prevent the accidental transmission of amyloid-beta, Weber added.
“It is a reasonable and actionable caution that the scientific and clinical communities must understand the possible risks and ensure that all methods of transmission are eliminated — for example, with complete and conscientious sterilization of surgical instruments,” he said. “Bottom line: We shouldn’t put amyloid-beta into people’s brains, either accidentally or on purpose, and appropriate measures should be in place to ensure that doesn’t happen.”
The study was supported by the Medical Research Council, the National Institute for Health and Care Research (NIHR), the NIHR University College of London Hospital Biomedical Research Centre, Alzheimer’s Research UK, and the Stroke Association. Dr. Collinge is a shareholder and director of D-Gen, Ltd., an academic spin-out company working in the field of prion disease diagnosis, decontamination and therapeutics. Dr. Jucker and Dr. Walker report no conflicts of interest.
A version of this article appeared on Medscape.com.
FROM NATURE MEDICINE
The Emerging Physician-Scientist Crisis in America
Recent reporting has shown that That’s a problem, because physician-scientists are uniquely equipped to make scientific discoveries in the laboratory and translate them to the clinic. Indeed, many of the discoveries that have transformed medicine for the better were made by physician-scientists. For example, Jonas Salk developed the polio vaccine, Timothy Ley sequenced the first cancer genome, and Anthony Fauci coordinated public health responses to both the HIV/AIDS and COVID-19 pandemics. Indicative of their sheer impact, at least a third and as many as half of all Nobel Prizes and Lasker Awards in physiology/medicine have gone to physician-scientists.
So why is the supply of physician-scientists shrinking so precipitously at a time when medical discoveries are being made at a record-high rate? Immunotherapy and proton therapy are transforming cancer care; RNA technology led to COVID vaccines; CRISPR is facilitating gene editing and treatment of diseases like sickle cell anemia. Yet, as exciting as medical science has become, only 1.5% of American doctors work as physician-scientists, more than a threefold drop compared with 30 years ago when the figure was a more robust 4.7%. What’s going on?
Residency training programs at prestigious academic medical centers have standard infolded research years; for example, neurosurgery residents at academic medical centers will often get 2 years of protected research time. And the National Institutes of Health has training grants dedicated to physician-scientists, such as the K08 award program. Several foundations are also dedicated to supporting early-career physician-scientists. Yet, the number of physicians deciding to become physician-scientists remains low, and, more troubling, the attrition rate of those who do decide to go this route is quite high.
The underlying issue is multifold. First, funding rates from the federal government for grants have become competitive to the point of being unrealistic. For example, the current funding rate for the flagship R01 program from the National Cancer Institute is only 12%. Promotions are typically tied to these grant awards, which means physician-scientists who are unable to acquire substantial grant funding are unable to pay for their research or win promotion — and often exit the physician-scientist track altogether.
Compounding this issue is a lack of mentorship for early-career physician-scientists. With the rise of “careerism” in medicine, senior-level physician-scientists may have less incentive to mentor those who are earlier in their careers. Rather, there seems to be greater reward to “managing up” — that is, spending time to please hospital administrators and departmental leadership. Being involved in countless committees appears to carry more value in advancing an established investigator’s career than does mentorship.
Finally, physician-scientists typically earn less than their clinician colleagues, despite juggling both scientific and clinical responsibilities. While many are comfortable with this arrangement when embarking on this track, the disparity may become untenable after a while, especially as departmental leadership will often turn to physician-scientists to fill clinical coverage gaps when faculty leave the department, or as the medical center expands to satellite centers outside the primary hospital. Indeed, physician-scientists get pulled in several directions, which can lead to burnout and attrition, with many who are highly equipped for this track ultimately hanging up their cleats and seeking more clinical or private industry–oriented opportunities.
Every academic medical center operates differently. Some clearly have done a better job than others promoting and fostering physician-scientists. What we find in the centers that manage to retain physician-scientists is leadership plays a major role: If a medical center values the importance of physician-scientists, they will do things to foster the success of those people, such as assembling mentorship committees, establishing clear criteria for promotion and career advancement, protecting research time while maintaining some level of pay equity, advocating for team science approaches, and supporting investigators in cases of gaps in federal funding. Different countries also have different models for physician-scientist training, with Germany, for example, allowing medical residents to have 3 years of protected time to engage in research after their second year of residency.
The stakes here are high. If we can’t address the physician-scientist recruitment and retention crisis in America now, we risk falling behind other countries in our ability to innovate and deliver world-class care.
Dr Chaudhuri is a tenure-track physician-scientist at Washington University in St. Louis, a Paul and Daisy Soros Fellow, and a Public Voices Fellow of The OpEd Project.
Aadel Chaudhuri, MD, PhD, has disclosed no relevant financial relationships.
A version of this article appeared on Medscape.com.
Recent reporting has shown that That’s a problem, because physician-scientists are uniquely equipped to make scientific discoveries in the laboratory and translate them to the clinic. Indeed, many of the discoveries that have transformed medicine for the better were made by physician-scientists. For example, Jonas Salk developed the polio vaccine, Timothy Ley sequenced the first cancer genome, and Anthony Fauci coordinated public health responses to both the HIV/AIDS and COVID-19 pandemics. Indicative of their sheer impact, at least a third and as many as half of all Nobel Prizes and Lasker Awards in physiology/medicine have gone to physician-scientists.
So why is the supply of physician-scientists shrinking so precipitously at a time when medical discoveries are being made at a record-high rate? Immunotherapy and proton therapy are transforming cancer care; RNA technology led to COVID vaccines; CRISPR is facilitating gene editing and treatment of diseases like sickle cell anemia. Yet, as exciting as medical science has become, only 1.5% of American doctors work as physician-scientists, more than a threefold drop compared with 30 years ago when the figure was a more robust 4.7%. What’s going on?
Residency training programs at prestigious academic medical centers have standard infolded research years; for example, neurosurgery residents at academic medical centers will often get 2 years of protected research time. And the National Institutes of Health has training grants dedicated to physician-scientists, such as the K08 award program. Several foundations are also dedicated to supporting early-career physician-scientists. Yet, the number of physicians deciding to become physician-scientists remains low, and, more troubling, the attrition rate of those who do decide to go this route is quite high.
The underlying issue is multifold. First, funding rates from the federal government for grants have become competitive to the point of being unrealistic. For example, the current funding rate for the flagship R01 program from the National Cancer Institute is only 12%. Promotions are typically tied to these grant awards, which means physician-scientists who are unable to acquire substantial grant funding are unable to pay for their research or win promotion — and often exit the physician-scientist track altogether.
Compounding this issue is a lack of mentorship for early-career physician-scientists. With the rise of “careerism” in medicine, senior-level physician-scientists may have less incentive to mentor those who are earlier in their careers. Rather, there seems to be greater reward to “managing up” — that is, spending time to please hospital administrators and departmental leadership. Being involved in countless committees appears to carry more value in advancing an established investigator’s career than does mentorship.
Finally, physician-scientists typically earn less than their clinician colleagues, despite juggling both scientific and clinical responsibilities. While many are comfortable with this arrangement when embarking on this track, the disparity may become untenable after a while, especially as departmental leadership will often turn to physician-scientists to fill clinical coverage gaps when faculty leave the department, or as the medical center expands to satellite centers outside the primary hospital. Indeed, physician-scientists get pulled in several directions, which can lead to burnout and attrition, with many who are highly equipped for this track ultimately hanging up their cleats and seeking more clinical or private industry–oriented opportunities.
Every academic medical center operates differently. Some clearly have done a better job than others promoting and fostering physician-scientists. What we find in the centers that manage to retain physician-scientists is leadership plays a major role: If a medical center values the importance of physician-scientists, they will do things to foster the success of those people, such as assembling mentorship committees, establishing clear criteria for promotion and career advancement, protecting research time while maintaining some level of pay equity, advocating for team science approaches, and supporting investigators in cases of gaps in federal funding. Different countries also have different models for physician-scientist training, with Germany, for example, allowing medical residents to have 3 years of protected time to engage in research after their second year of residency.
The stakes here are high. If we can’t address the physician-scientist recruitment and retention crisis in America now, we risk falling behind other countries in our ability to innovate and deliver world-class care.
Dr Chaudhuri is a tenure-track physician-scientist at Washington University in St. Louis, a Paul and Daisy Soros Fellow, and a Public Voices Fellow of The OpEd Project.
Aadel Chaudhuri, MD, PhD, has disclosed no relevant financial relationships.
A version of this article appeared on Medscape.com.
Recent reporting has shown that That’s a problem, because physician-scientists are uniquely equipped to make scientific discoveries in the laboratory and translate them to the clinic. Indeed, many of the discoveries that have transformed medicine for the better were made by physician-scientists. For example, Jonas Salk developed the polio vaccine, Timothy Ley sequenced the first cancer genome, and Anthony Fauci coordinated public health responses to both the HIV/AIDS and COVID-19 pandemics. Indicative of their sheer impact, at least a third and as many as half of all Nobel Prizes and Lasker Awards in physiology/medicine have gone to physician-scientists.
So why is the supply of physician-scientists shrinking so precipitously at a time when medical discoveries are being made at a record-high rate? Immunotherapy and proton therapy are transforming cancer care; RNA technology led to COVID vaccines; CRISPR is facilitating gene editing and treatment of diseases like sickle cell anemia. Yet, as exciting as medical science has become, only 1.5% of American doctors work as physician-scientists, more than a threefold drop compared with 30 years ago when the figure was a more robust 4.7%. What’s going on?
Residency training programs at prestigious academic medical centers have standard infolded research years; for example, neurosurgery residents at academic medical centers will often get 2 years of protected research time. And the National Institutes of Health has training grants dedicated to physician-scientists, such as the K08 award program. Several foundations are also dedicated to supporting early-career physician-scientists. Yet, the number of physicians deciding to become physician-scientists remains low, and, more troubling, the attrition rate of those who do decide to go this route is quite high.
The underlying issue is multifold. First, funding rates from the federal government for grants have become competitive to the point of being unrealistic. For example, the current funding rate for the flagship R01 program from the National Cancer Institute is only 12%. Promotions are typically tied to these grant awards, which means physician-scientists who are unable to acquire substantial grant funding are unable to pay for their research or win promotion — and often exit the physician-scientist track altogether.
Compounding this issue is a lack of mentorship for early-career physician-scientists. With the rise of “careerism” in medicine, senior-level physician-scientists may have less incentive to mentor those who are earlier in their careers. Rather, there seems to be greater reward to “managing up” — that is, spending time to please hospital administrators and departmental leadership. Being involved in countless committees appears to carry more value in advancing an established investigator’s career than does mentorship.
Finally, physician-scientists typically earn less than their clinician colleagues, despite juggling both scientific and clinical responsibilities. While many are comfortable with this arrangement when embarking on this track, the disparity may become untenable after a while, especially as departmental leadership will often turn to physician-scientists to fill clinical coverage gaps when faculty leave the department, or as the medical center expands to satellite centers outside the primary hospital. Indeed, physician-scientists get pulled in several directions, which can lead to burnout and attrition, with many who are highly equipped for this track ultimately hanging up their cleats and seeking more clinical or private industry–oriented opportunities.
Every academic medical center operates differently. Some clearly have done a better job than others promoting and fostering physician-scientists. What we find in the centers that manage to retain physician-scientists is leadership plays a major role: If a medical center values the importance of physician-scientists, they will do things to foster the success of those people, such as assembling mentorship committees, establishing clear criteria for promotion and career advancement, protecting research time while maintaining some level of pay equity, advocating for team science approaches, and supporting investigators in cases of gaps in federal funding. Different countries also have different models for physician-scientist training, with Germany, for example, allowing medical residents to have 3 years of protected time to engage in research after their second year of residency.
The stakes here are high. If we can’t address the physician-scientist recruitment and retention crisis in America now, we risk falling behind other countries in our ability to innovate and deliver world-class care.
Dr Chaudhuri is a tenure-track physician-scientist at Washington University in St. Louis, a Paul and Daisy Soros Fellow, and a Public Voices Fellow of The OpEd Project.
Aadel Chaudhuri, MD, PhD, has disclosed no relevant financial relationships.
A version of this article appeared on Medscape.com.
Two-Step Strategy Improves Early-Stage Ovarian Cancer Detection
TOPLINE:
a new analysis with a 21-year follow-up found.
METHODOLOGY:
- Detecting ovarian cancer at stage I or II could significantly reduce ovarian cancer-related deaths, but only 25%-30% of patients are diagnosed at an early stage.
- In this single-arm prospective analysis, 7,856 healthy postmenopausal women received annual screening for ovarian cancer between 2011 and 2022. Screening involved an annual blood test to detect levels of cancer antigen 125 and track these levels over time.
- Investigators used the Risk of Ovarian Cancer Algorithm (ROCA) to determine whether ovarian cancer risk was normal, intermediate, or high. Those with elevated ROCA scores were referred for transvaginal sonography; those with intermediate scores received follow-up blood tests every 3 months.
- Overall, 92.3% of women were normal risk, 5.7% were intermediate, and 2% were high risk and recommended for transvaginal sonography.
TAKEAWAY:
- Most women (95.5%) referred for transvaginal ultrasound had one. Of these ultrasounds, most (90%) were negative or revealed benign findings, 5.2% required a repeat ultrasound, and 4.8% (34 patients) showed suspicious findings.
- Of 34 patients with suspicious findings and recommended for surgery, 15 had ovarian cancer and two had borderline tumors, indicating a positive predictive value of 50% (17 of 34 patients) for ovarian cancer. Of these 17 patients, 12 (70.6%) had stage I or II disease.
- Following abnormal ROCA results, seven other women were diagnosed with endometrial tumors (six of which were stage I), indicating a positive predictive value of 74% (25 of 34) for any cancer.
- The specificity for elevated risk ROCA prompting ultrasound was 98%, and the specificity of the ROCA and ultrasound prompting surgery was 99.8%. The sensitivity for detecting ovarian and borderline cancer was 74% (17 of 23).
IN PRACTICE:
“Remarkably, 70% of ovarian cancers detected by the ROCA” were early stage,” the authors concluded. Although the trial was not powered to detect reduced mortality, the high specificity, positive predictive value, and shift to identifying earlier-stage cancers “support further development of this strategy,” the investigators said.
LIMITATIONS:
This trial was not powered to detect mortality benefit. Six ovarian cancers and borderline tumors were missed. Only 80% of ovarian cancers express cancer antigen 125, potentially limiting the sensitivity of the algorithm.
SOURCE:
This study, led by Chae Young Han from the University of Texas MD Anderson Cancer Center, Houston, was published online on January 12 in the Journal of Clinical Oncology.
DISCLOSURES:
This study was supported by funds from the NCI Early Detection Research Network, the MD Anderson Ovarian SPOREs, the National Cancer Institute, the Department of Health and Human Services, and others. The authors reported receiving research funding, grants, consulting, and personal fees from various companies, including Curio Science, Fujirebio Diagnostics, GlaxoSmithKline, AstraZeneca, and Genentech.
A version of this article appeared on Medscape.com.
TOPLINE:
a new analysis with a 21-year follow-up found.
METHODOLOGY:
- Detecting ovarian cancer at stage I or II could significantly reduce ovarian cancer-related deaths, but only 25%-30% of patients are diagnosed at an early stage.
- In this single-arm prospective analysis, 7,856 healthy postmenopausal women received annual screening for ovarian cancer between 2011 and 2022. Screening involved an annual blood test to detect levels of cancer antigen 125 and track these levels over time.
- Investigators used the Risk of Ovarian Cancer Algorithm (ROCA) to determine whether ovarian cancer risk was normal, intermediate, or high. Those with elevated ROCA scores were referred for transvaginal sonography; those with intermediate scores received follow-up blood tests every 3 months.
- Overall, 92.3% of women were normal risk, 5.7% were intermediate, and 2% were high risk and recommended for transvaginal sonography.
TAKEAWAY:
- Most women (95.5%) referred for transvaginal ultrasound had one. Of these ultrasounds, most (90%) were negative or revealed benign findings, 5.2% required a repeat ultrasound, and 4.8% (34 patients) showed suspicious findings.
- Of 34 patients with suspicious findings and recommended for surgery, 15 had ovarian cancer and two had borderline tumors, indicating a positive predictive value of 50% (17 of 34 patients) for ovarian cancer. Of these 17 patients, 12 (70.6%) had stage I or II disease.
- Following abnormal ROCA results, seven other women were diagnosed with endometrial tumors (six of which were stage I), indicating a positive predictive value of 74% (25 of 34) for any cancer.
- The specificity for elevated risk ROCA prompting ultrasound was 98%, and the specificity of the ROCA and ultrasound prompting surgery was 99.8%. The sensitivity for detecting ovarian and borderline cancer was 74% (17 of 23).
IN PRACTICE:
“Remarkably, 70% of ovarian cancers detected by the ROCA” were early stage,” the authors concluded. Although the trial was not powered to detect reduced mortality, the high specificity, positive predictive value, and shift to identifying earlier-stage cancers “support further development of this strategy,” the investigators said.
LIMITATIONS:
This trial was not powered to detect mortality benefit. Six ovarian cancers and borderline tumors were missed. Only 80% of ovarian cancers express cancer antigen 125, potentially limiting the sensitivity of the algorithm.
SOURCE:
This study, led by Chae Young Han from the University of Texas MD Anderson Cancer Center, Houston, was published online on January 12 in the Journal of Clinical Oncology.
DISCLOSURES:
This study was supported by funds from the NCI Early Detection Research Network, the MD Anderson Ovarian SPOREs, the National Cancer Institute, the Department of Health and Human Services, and others. The authors reported receiving research funding, grants, consulting, and personal fees from various companies, including Curio Science, Fujirebio Diagnostics, GlaxoSmithKline, AstraZeneca, and Genentech.
A version of this article appeared on Medscape.com.
TOPLINE:
a new analysis with a 21-year follow-up found.
METHODOLOGY:
- Detecting ovarian cancer at stage I or II could significantly reduce ovarian cancer-related deaths, but only 25%-30% of patients are diagnosed at an early stage.
- In this single-arm prospective analysis, 7,856 healthy postmenopausal women received annual screening for ovarian cancer between 2011 and 2022. Screening involved an annual blood test to detect levels of cancer antigen 125 and track these levels over time.
- Investigators used the Risk of Ovarian Cancer Algorithm (ROCA) to determine whether ovarian cancer risk was normal, intermediate, or high. Those with elevated ROCA scores were referred for transvaginal sonography; those with intermediate scores received follow-up blood tests every 3 months.
- Overall, 92.3% of women were normal risk, 5.7% were intermediate, and 2% were high risk and recommended for transvaginal sonography.
TAKEAWAY:
- Most women (95.5%) referred for transvaginal ultrasound had one. Of these ultrasounds, most (90%) were negative or revealed benign findings, 5.2% required a repeat ultrasound, and 4.8% (34 patients) showed suspicious findings.
- Of 34 patients with suspicious findings and recommended for surgery, 15 had ovarian cancer and two had borderline tumors, indicating a positive predictive value of 50% (17 of 34 patients) for ovarian cancer. Of these 17 patients, 12 (70.6%) had stage I or II disease.
- Following abnormal ROCA results, seven other women were diagnosed with endometrial tumors (six of which were stage I), indicating a positive predictive value of 74% (25 of 34) for any cancer.
- The specificity for elevated risk ROCA prompting ultrasound was 98%, and the specificity of the ROCA and ultrasound prompting surgery was 99.8%. The sensitivity for detecting ovarian and borderline cancer was 74% (17 of 23).
IN PRACTICE:
“Remarkably, 70% of ovarian cancers detected by the ROCA” were early stage,” the authors concluded. Although the trial was not powered to detect reduced mortality, the high specificity, positive predictive value, and shift to identifying earlier-stage cancers “support further development of this strategy,” the investigators said.
LIMITATIONS:
This trial was not powered to detect mortality benefit. Six ovarian cancers and borderline tumors were missed. Only 80% of ovarian cancers express cancer antigen 125, potentially limiting the sensitivity of the algorithm.
SOURCE:
This study, led by Chae Young Han from the University of Texas MD Anderson Cancer Center, Houston, was published online on January 12 in the Journal of Clinical Oncology.
DISCLOSURES:
This study was supported by funds from the NCI Early Detection Research Network, the MD Anderson Ovarian SPOREs, the National Cancer Institute, the Department of Health and Human Services, and others. The authors reported receiving research funding, grants, consulting, and personal fees from various companies, including Curio Science, Fujirebio Diagnostics, GlaxoSmithKline, AstraZeneca, and Genentech.
A version of this article appeared on Medscape.com.
Five Bold Predictions for Long COVID in 2024
With a number of large-scale clinical trials underway and researchers on the hunt for new therapies, long COVID scientists are hopeful that this is the year patients — and doctors who care for them — will finally see improvements in treating their symptoms.
Here are five bold predictions — all based on encouraging research — that could happen in 2024. At the very least, they are promising signs of progress against a debilitating and frustrating disease.
#1: We’ll gain a better understanding of each long COVID phenotype
This past year, a wide breadth of research began showing that long COVID can be defined by a number of different disease phenotypes that present a range of symptoms.
Researchers identified four clinical phenotypes: Chronic fatigue-like syndrome, headache, and memory loss; respiratory syndrome, which includes cough and difficulty breathing; chronic pain; and neurosensorial syndrome, which causes an altered sense of taste and smell.
Identifying specific diagnostic criteria for each phenotype would lead to better health outcomes for patients instead of treating them as if it were a “one-size-fits-all disease,” said Nisha Viswanathan, MD, director of the long COVID program at UCLA Health, Los Angeles, California.
Ultimately, she hopes that this year her patients will receive treatments based on the type of long COVID they’re personally experiencing, and the symptoms they have, leading to improved health outcomes and more rapid relief.
“Many new medications are focused on different pathways of long COVID, and the challenge becomes which drug is the right drug for each treatment,” said Dr. Viswanathan.
#2: Monoclonal antibodies may change the game
We’re starting to have a better understanding that what’s been called “viral persistence” as a main cause of long COVID may potentially be treated with monoclonal antibodies. These are antibodies produced by cloning unique white blood cells to target the circulating spike proteins in the blood that hang out in viral reservoirs and cause the immune system to react as if it’s still fighting acute COVID-19.
Smaller-scale studies have already shown promising results. A January 2024 study published in The American Journal of Emergency Medicine followed three patients who completely recovered from long COVID after taking monoclonal antibodies. “Remission occurred despite dissimilar past histories, sex, age, and illness duration,” wrote the study authors.
Larger clinical trials are underway at the University of California, San Francisco, California, to test targeted monoclonal antibodies. If the results of the larger study show that monoclonal antibodies are beneficial, then it could be a game changer for a large swath of patients around the world, said David F. Putrino, PhD, who runs the long COVID clinic at Mount Sinai Health System in New York City.
“The idea is that the downstream damage caused by viral persistence will resolve itself once you wipe out the virus,” said Dr. Putrino.
#3: Paxlovid could prove effective for long COVID
The US Food and Drug Administration granted approval for Paxlovid last May for the treatment of mild to moderate COVID-19 in adults at a high risk for severe disease. The medication is made up of two drugs packaged together. The first, nirmatrelvir, works by blocking a key enzyme required for virus replication. The second, ritonavir, is an antiviral that’s been used in patients with HIV and helps boost levels of antivirals in the body.
In a large-scale trial headed up by Dr. Putrino and his team, the oral antiviral is being studied for use in the post-viral stage in patients who test negative for acute COVID-19 but have persisting symptoms of long COVID.
Similar to monoclonal antibodies, the idea is to quell viral persistence. If patients have long COVID because they can’t clear SAR-CoV-2 from their bodies, Paxlovid could help. But unlike monoclonal antibodies that quash the virus, Paxlovid stops the virus from replicating. It’s a different mechanism with the same end goal.
It’s been a controversial treatment because it’s life-changing for some patients and ineffective for others. In addition, it can cause a range of side effects such as diarrhea, nausea, vomiting, and an impaired sense of taste. The goal of the trial is to see which patients with long COVID are most likely to benefit from the treatment.
#4: Anti-inflammatories like metformin could prove useful
Many of the inflammatory markers persistent in patients with long COVID were similarly present in patients with autoimmune diseases like rheumatoid arthritis, according to a July 2023 study published in JAMA.
The hope is that anti-inflammatory medications may be used to reduce inflammation causing long COVID symptoms. But drugs used to treat rheumatoid arthritis like abatacept and infliximabcan also have serious side effects, including increased risk for infection, flu-like symptoms, and burning of the skin.
“Powerful anti-inflammatories can change a number of pathways in the immune system,” said Grace McComsey, MD, who leads the long COVID RECOVER study at University Hospitals Health System in Cleveland, Ohio. Anti-inflammatories hold promise but, Dr. McComsey said, “some are more toxic with many side effects, so even if they work, there’s still a question about who should take them.”
Still, other anti-inflammatories that could work don’t have as many side effects. For example, a study published in The Lancet Infectious Diseases found that the diabetes drug metformin reduced a patient’s risk for long COVID up to 40% when the drug was taken during the acute stage.
Metformin, compared to other anti-inflammatories (also known as immune modulators), is an inexpensive and widely available drug with relatively few side effects compared with other medications.
#5: Serotonin levels — and selective serotonin reuptake inhibitors (SSRIs) — may be keys to unlocking long COVID
One of the most groundbreaking studies of the year came last November. A study published in the journal Cell found lower circulating serotonin levels in patents with long COVID than in those who did not have the condition. The study also found that the SSRI fluoxetine improved cognitive function in rat models infected with the virus.
Researchers found that the reduction in serotonin levels was partially caused by the body’s inability to absorb tryptophan, an amino acid that’s a precursor to serotonin. Overactivated blood platelets may also have played a role.
Michael Peluso, MD, an assistant research professor of infectious medicine at the UCSF School of Medicine, San Francisco, California, hopes to take the finding a step further, investigating whether increased serotonin levels in patients with long COVID will lead to improvements in symptoms.
“What we need now is a good clinical trial to see whether altering levels of serotonin in people with long COVID will lead to symptom relief,” Dr. Peluso said last month in an interview with this news organization.
If patients show an improvement in symptoms, then the next step is looking into whether SSRIs boost serotonin levels in patients and, as a result, reduce their symptoms.
A version of this article appeared on Medscape.com.
With a number of large-scale clinical trials underway and researchers on the hunt for new therapies, long COVID scientists are hopeful that this is the year patients — and doctors who care for them — will finally see improvements in treating their symptoms.
Here are five bold predictions — all based on encouraging research — that could happen in 2024. At the very least, they are promising signs of progress against a debilitating and frustrating disease.
#1: We’ll gain a better understanding of each long COVID phenotype
This past year, a wide breadth of research began showing that long COVID can be defined by a number of different disease phenotypes that present a range of symptoms.
Researchers identified four clinical phenotypes: Chronic fatigue-like syndrome, headache, and memory loss; respiratory syndrome, which includes cough and difficulty breathing; chronic pain; and neurosensorial syndrome, which causes an altered sense of taste and smell.
Identifying specific diagnostic criteria for each phenotype would lead to better health outcomes for patients instead of treating them as if it were a “one-size-fits-all disease,” said Nisha Viswanathan, MD, director of the long COVID program at UCLA Health, Los Angeles, California.
Ultimately, she hopes that this year her patients will receive treatments based on the type of long COVID they’re personally experiencing, and the symptoms they have, leading to improved health outcomes and more rapid relief.
“Many new medications are focused on different pathways of long COVID, and the challenge becomes which drug is the right drug for each treatment,” said Dr. Viswanathan.
#2: Monoclonal antibodies may change the game
We’re starting to have a better understanding that what’s been called “viral persistence” as a main cause of long COVID may potentially be treated with monoclonal antibodies. These are antibodies produced by cloning unique white blood cells to target the circulating spike proteins in the blood that hang out in viral reservoirs and cause the immune system to react as if it’s still fighting acute COVID-19.
Smaller-scale studies have already shown promising results. A January 2024 study published in The American Journal of Emergency Medicine followed three patients who completely recovered from long COVID after taking monoclonal antibodies. “Remission occurred despite dissimilar past histories, sex, age, and illness duration,” wrote the study authors.
Larger clinical trials are underway at the University of California, San Francisco, California, to test targeted monoclonal antibodies. If the results of the larger study show that monoclonal antibodies are beneficial, then it could be a game changer for a large swath of patients around the world, said David F. Putrino, PhD, who runs the long COVID clinic at Mount Sinai Health System in New York City.
“The idea is that the downstream damage caused by viral persistence will resolve itself once you wipe out the virus,” said Dr. Putrino.
#3: Paxlovid could prove effective for long COVID
The US Food and Drug Administration granted approval for Paxlovid last May for the treatment of mild to moderate COVID-19 in adults at a high risk for severe disease. The medication is made up of two drugs packaged together. The first, nirmatrelvir, works by blocking a key enzyme required for virus replication. The second, ritonavir, is an antiviral that’s been used in patients with HIV and helps boost levels of antivirals in the body.
In a large-scale trial headed up by Dr. Putrino and his team, the oral antiviral is being studied for use in the post-viral stage in patients who test negative for acute COVID-19 but have persisting symptoms of long COVID.
Similar to monoclonal antibodies, the idea is to quell viral persistence. If patients have long COVID because they can’t clear SAR-CoV-2 from their bodies, Paxlovid could help. But unlike monoclonal antibodies that quash the virus, Paxlovid stops the virus from replicating. It’s a different mechanism with the same end goal.
It’s been a controversial treatment because it’s life-changing for some patients and ineffective for others. In addition, it can cause a range of side effects such as diarrhea, nausea, vomiting, and an impaired sense of taste. The goal of the trial is to see which patients with long COVID are most likely to benefit from the treatment.
#4: Anti-inflammatories like metformin could prove useful
Many of the inflammatory markers persistent in patients with long COVID were similarly present in patients with autoimmune diseases like rheumatoid arthritis, according to a July 2023 study published in JAMA.
The hope is that anti-inflammatory medications may be used to reduce inflammation causing long COVID symptoms. But drugs used to treat rheumatoid arthritis like abatacept and infliximabcan also have serious side effects, including increased risk for infection, flu-like symptoms, and burning of the skin.
“Powerful anti-inflammatories can change a number of pathways in the immune system,” said Grace McComsey, MD, who leads the long COVID RECOVER study at University Hospitals Health System in Cleveland, Ohio. Anti-inflammatories hold promise but, Dr. McComsey said, “some are more toxic with many side effects, so even if they work, there’s still a question about who should take them.”
Still, other anti-inflammatories that could work don’t have as many side effects. For example, a study published in The Lancet Infectious Diseases found that the diabetes drug metformin reduced a patient’s risk for long COVID up to 40% when the drug was taken during the acute stage.
Metformin, compared to other anti-inflammatories (also known as immune modulators), is an inexpensive and widely available drug with relatively few side effects compared with other medications.
#5: Serotonin levels — and selective serotonin reuptake inhibitors (SSRIs) — may be keys to unlocking long COVID
One of the most groundbreaking studies of the year came last November. A study published in the journal Cell found lower circulating serotonin levels in patents with long COVID than in those who did not have the condition. The study also found that the SSRI fluoxetine improved cognitive function in rat models infected with the virus.
Researchers found that the reduction in serotonin levels was partially caused by the body’s inability to absorb tryptophan, an amino acid that’s a precursor to serotonin. Overactivated blood platelets may also have played a role.
Michael Peluso, MD, an assistant research professor of infectious medicine at the UCSF School of Medicine, San Francisco, California, hopes to take the finding a step further, investigating whether increased serotonin levels in patients with long COVID will lead to improvements in symptoms.
“What we need now is a good clinical trial to see whether altering levels of serotonin in people with long COVID will lead to symptom relief,” Dr. Peluso said last month in an interview with this news organization.
If patients show an improvement in symptoms, then the next step is looking into whether SSRIs boost serotonin levels in patients and, as a result, reduce their symptoms.
A version of this article appeared on Medscape.com.
With a number of large-scale clinical trials underway and researchers on the hunt for new therapies, long COVID scientists are hopeful that this is the year patients — and doctors who care for them — will finally see improvements in treating their symptoms.
Here are five bold predictions — all based on encouraging research — that could happen in 2024. At the very least, they are promising signs of progress against a debilitating and frustrating disease.
#1: We’ll gain a better understanding of each long COVID phenotype
This past year, a wide breadth of research began showing that long COVID can be defined by a number of different disease phenotypes that present a range of symptoms.
Researchers identified four clinical phenotypes: Chronic fatigue-like syndrome, headache, and memory loss; respiratory syndrome, which includes cough and difficulty breathing; chronic pain; and neurosensorial syndrome, which causes an altered sense of taste and smell.
Identifying specific diagnostic criteria for each phenotype would lead to better health outcomes for patients instead of treating them as if it were a “one-size-fits-all disease,” said Nisha Viswanathan, MD, director of the long COVID program at UCLA Health, Los Angeles, California.
Ultimately, she hopes that this year her patients will receive treatments based on the type of long COVID they’re personally experiencing, and the symptoms they have, leading to improved health outcomes and more rapid relief.
“Many new medications are focused on different pathways of long COVID, and the challenge becomes which drug is the right drug for each treatment,” said Dr. Viswanathan.
#2: Monoclonal antibodies may change the game
We’re starting to have a better understanding that what’s been called “viral persistence” as a main cause of long COVID may potentially be treated with monoclonal antibodies. These are antibodies produced by cloning unique white blood cells to target the circulating spike proteins in the blood that hang out in viral reservoirs and cause the immune system to react as if it’s still fighting acute COVID-19.
Smaller-scale studies have already shown promising results. A January 2024 study published in The American Journal of Emergency Medicine followed three patients who completely recovered from long COVID after taking monoclonal antibodies. “Remission occurred despite dissimilar past histories, sex, age, and illness duration,” wrote the study authors.
Larger clinical trials are underway at the University of California, San Francisco, California, to test targeted monoclonal antibodies. If the results of the larger study show that monoclonal antibodies are beneficial, then it could be a game changer for a large swath of patients around the world, said David F. Putrino, PhD, who runs the long COVID clinic at Mount Sinai Health System in New York City.
“The idea is that the downstream damage caused by viral persistence will resolve itself once you wipe out the virus,” said Dr. Putrino.
#3: Paxlovid could prove effective for long COVID
The US Food and Drug Administration granted approval for Paxlovid last May for the treatment of mild to moderate COVID-19 in adults at a high risk for severe disease. The medication is made up of two drugs packaged together. The first, nirmatrelvir, works by blocking a key enzyme required for virus replication. The second, ritonavir, is an antiviral that’s been used in patients with HIV and helps boost levels of antivirals in the body.
In a large-scale trial headed up by Dr. Putrino and his team, the oral antiviral is being studied for use in the post-viral stage in patients who test negative for acute COVID-19 but have persisting symptoms of long COVID.
Similar to monoclonal antibodies, the idea is to quell viral persistence. If patients have long COVID because they can’t clear SAR-CoV-2 from their bodies, Paxlovid could help. But unlike monoclonal antibodies that quash the virus, Paxlovid stops the virus from replicating. It’s a different mechanism with the same end goal.
It’s been a controversial treatment because it’s life-changing for some patients and ineffective for others. In addition, it can cause a range of side effects such as diarrhea, nausea, vomiting, and an impaired sense of taste. The goal of the trial is to see which patients with long COVID are most likely to benefit from the treatment.
#4: Anti-inflammatories like metformin could prove useful
Many of the inflammatory markers persistent in patients with long COVID were similarly present in patients with autoimmune diseases like rheumatoid arthritis, according to a July 2023 study published in JAMA.
The hope is that anti-inflammatory medications may be used to reduce inflammation causing long COVID symptoms. But drugs used to treat rheumatoid arthritis like abatacept and infliximabcan also have serious side effects, including increased risk for infection, flu-like symptoms, and burning of the skin.
“Powerful anti-inflammatories can change a number of pathways in the immune system,” said Grace McComsey, MD, who leads the long COVID RECOVER study at University Hospitals Health System in Cleveland, Ohio. Anti-inflammatories hold promise but, Dr. McComsey said, “some are more toxic with many side effects, so even if they work, there’s still a question about who should take them.”
Still, other anti-inflammatories that could work don’t have as many side effects. For example, a study published in The Lancet Infectious Diseases found that the diabetes drug metformin reduced a patient’s risk for long COVID up to 40% when the drug was taken during the acute stage.
Metformin, compared to other anti-inflammatories (also known as immune modulators), is an inexpensive and widely available drug with relatively few side effects compared with other medications.
#5: Serotonin levels — and selective serotonin reuptake inhibitors (SSRIs) — may be keys to unlocking long COVID
One of the most groundbreaking studies of the year came last November. A study published in the journal Cell found lower circulating serotonin levels in patents with long COVID than in those who did not have the condition. The study also found that the SSRI fluoxetine improved cognitive function in rat models infected with the virus.
Researchers found that the reduction in serotonin levels was partially caused by the body’s inability to absorb tryptophan, an amino acid that’s a precursor to serotonin. Overactivated blood platelets may also have played a role.
Michael Peluso, MD, an assistant research professor of infectious medicine at the UCSF School of Medicine, San Francisco, California, hopes to take the finding a step further, investigating whether increased serotonin levels in patients with long COVID will lead to improvements in symptoms.
“What we need now is a good clinical trial to see whether altering levels of serotonin in people with long COVID will lead to symptom relief,” Dr. Peluso said last month in an interview with this news organization.
If patients show an improvement in symptoms, then the next step is looking into whether SSRIs boost serotonin levels in patients and, as a result, reduce their symptoms.
A version of this article appeared on Medscape.com.
Europe Is Facing a Pancreatic Cancer Emergency
“It’s a health emergency for society, with mortality rates at over 90%,” warned Professor Alfredo Carrato, MD, PhD, the chairperson of Pancreatic Cancer Europe.
There are many challenges with pancreatic cancer: Lack of awareness, difficult to diagnose, no screening programs for the general population, poor survival rate, and limited treatment options.
Life expectancy at the time of diagnosis is just 4.6 months. Only 3% of people diagnosed with pancreatic cancer will survive for 5 years.
A 2024 systematic analysis in The Lancet suggested that people living in Western Europe are more likely to develop pancreatic cancer than those living anywhere else in the world.
Dr. Carrato, emeritus professor of medical oncology at the University of Alcalá, Madrid, Spain, wasn’t surprised. He told this news organization: “I think the lifestyle in Europe plays a part. We have all of the risk factors in society like obesity, our sedentary behavior, too much red meat consumption, and excess alcohol intake.”
Other risk factors include smoking, diabetes, chronic pancreatitis, and a family history.
The incidence of pancreatic cancer increases with age, so the longer life expectancy in Western Europe could also contribute to the region’s high rates.
A Silent Killer
Pancreatic cancer is difficult to identify. It is often asymptomatic. Symptoms that do show themselves, like back pain, weight loss, and nausea, are nonspecific and make early diagnosis challenging.
Professor Mattias Löhr from the Karolinska Institutet, Stockholm, Sweden, told this news organization: “It’s a dismal disease. It’s not accessible for any easy screening or surveillance. Even early diagnosis is too late with pancreatic cancer.”
There have been few advancements in patient outcomes over the past few decades.
Only about 20% of patients are suitable candidates for surgery that could prolong their lives.
Also, cancer reoccurs in two thirds of surgical candidates, said Dr. Carrato, and oncologists don’t know how to identify them in advance. “I have patients who survive 3 months and others who survive 4 or 5 years, so there’s a need to identify these subtypes at a molecular level for personalized, clinical, and translational research and therapies.”
Dr. Löhr agreed: “All of the medical therapies are not really working well enough for pancreatic cancer in sharp contrast to other cancers.”
How Can Rates Be Reduced?
“Pancreatic Cancer Europe is working in every EU state to try to raise awareness,” said Dr. Carrato. “We should have primary prevention programs to modify lifestyle risks. We also need funds for translational and clinical research. Secondary prevention isn’t possible yet as we haven’t identified the higher-risk population who would be the target for screening.”
Screening programs are available for the 10% of people who have a family history of pancreatic cancer. But, for the vast majority, there are no tests or screenings that allow for earlier detection.
“We need blood or stool tests that have high specificity and sensitivity that are cost-effective,” said Dr. Carrato.
“It’s a type of cancer with a particular and very aggressive biology. There is a lack of pancreatic tumor tissue for research, as many patients are diagnosed by fine-needle aspiration cytology. It’s a challenge for researchers. We have no biomarkers available to direct our decisions; no precision oncology,” he added.
Still, there are some encouraging developments.
The European PANCAID project (pancreatic cancer initial detection via liquid biopsy) is trying to find biomarkers to screen at-risk groups for earlier diagnosis via a blood test.
Also, the European Union (EU)-funded PANCAIM project (pancreatic cancer artificial intelligence [AI] for genomics and personalized medicine) has developed an AI algorithm that detects small cancers in CT scans that even experienced radiologists might easily overlook.
The project’s head, Henkjan Huisman, is professor of medical imaging AI at Radboud University Medical Center, Nijmegen, the Netherlands. He told this news organization: “It’s an extremely important step, as 20% of people with pancreas cancer have the ability to undergo surgery, which means they might live substantially longer. We believe if the tumors are found earlier, thanks to the algorithm, they are smaller and more contained, and so substantially more than 20% of patients would be suitable for surgery, which would be a breakthrough.”
Dr. Löhr added that a messenger RNA vaccine is being developed in the United States to prevent pancreatic cancer from returning after surgery and is demonstrating encouraging results in its early trials.
The Road Toward Better Care
To improve cancer care in Europe, Dr. Carrato said: “Reference centers should be a requirement in health policy programs because the outcomes are much better than in centers which only perform fewer surgeries, and Pancreatic Cancer Europe is working with the EU in this direction.”
Finland is a country that appears to have succeeded in this regard. Its 2005 Health Care Act, for example, ensures that cancer patients are able to receive care in one of its five specialized hospitals.
More research funding is also needed. According to Pancreatic Cancer Europe, only 2% of EU funding on cancer is spent on pancreatic cancer.
The American Cancer Society’s Cancer Facts & Figures 2024 makes room for some optimism, with the 5-year survival rate in the United States jumping to 13% from 6% in the society’s 2014 report, as a result of earlier diagnoses and more personalized treatment. But, even with potentially longer survival rates, said Dr. Löhr, “we are still on the trajectory of pancreatic cancer being number two for cancer deaths by 2030.”
“We need more money on research, centralized surgery, and networking between European countries,” said Dr. Carrato. “This networking would need more money for prevention, better diagnosis, and treatment. The problem is pancreatic cancer incidence is increasing and mortality is also in parallel, and we are not making real progress in this scenario.”
A version of this article appeared on Medscape.com.
“It’s a health emergency for society, with mortality rates at over 90%,” warned Professor Alfredo Carrato, MD, PhD, the chairperson of Pancreatic Cancer Europe.
There are many challenges with pancreatic cancer: Lack of awareness, difficult to diagnose, no screening programs for the general population, poor survival rate, and limited treatment options.
Life expectancy at the time of diagnosis is just 4.6 months. Only 3% of people diagnosed with pancreatic cancer will survive for 5 years.
A 2024 systematic analysis in The Lancet suggested that people living in Western Europe are more likely to develop pancreatic cancer than those living anywhere else in the world.
Dr. Carrato, emeritus professor of medical oncology at the University of Alcalá, Madrid, Spain, wasn’t surprised. He told this news organization: “I think the lifestyle in Europe plays a part. We have all of the risk factors in society like obesity, our sedentary behavior, too much red meat consumption, and excess alcohol intake.”
Other risk factors include smoking, diabetes, chronic pancreatitis, and a family history.
The incidence of pancreatic cancer increases with age, so the longer life expectancy in Western Europe could also contribute to the region’s high rates.
A Silent Killer
Pancreatic cancer is difficult to identify. It is often asymptomatic. Symptoms that do show themselves, like back pain, weight loss, and nausea, are nonspecific and make early diagnosis challenging.
Professor Mattias Löhr from the Karolinska Institutet, Stockholm, Sweden, told this news organization: “It’s a dismal disease. It’s not accessible for any easy screening or surveillance. Even early diagnosis is too late with pancreatic cancer.”
There have been few advancements in patient outcomes over the past few decades.
Only about 20% of patients are suitable candidates for surgery that could prolong their lives.
Also, cancer reoccurs in two thirds of surgical candidates, said Dr. Carrato, and oncologists don’t know how to identify them in advance. “I have patients who survive 3 months and others who survive 4 or 5 years, so there’s a need to identify these subtypes at a molecular level for personalized, clinical, and translational research and therapies.”
Dr. Löhr agreed: “All of the medical therapies are not really working well enough for pancreatic cancer in sharp contrast to other cancers.”
How Can Rates Be Reduced?
“Pancreatic Cancer Europe is working in every EU state to try to raise awareness,” said Dr. Carrato. “We should have primary prevention programs to modify lifestyle risks. We also need funds for translational and clinical research. Secondary prevention isn’t possible yet as we haven’t identified the higher-risk population who would be the target for screening.”
Screening programs are available for the 10% of people who have a family history of pancreatic cancer. But, for the vast majority, there are no tests or screenings that allow for earlier detection.
“We need blood or stool tests that have high specificity and sensitivity that are cost-effective,” said Dr. Carrato.
“It’s a type of cancer with a particular and very aggressive biology. There is a lack of pancreatic tumor tissue for research, as many patients are diagnosed by fine-needle aspiration cytology. It’s a challenge for researchers. We have no biomarkers available to direct our decisions; no precision oncology,” he added.
Still, there are some encouraging developments.
The European PANCAID project (pancreatic cancer initial detection via liquid biopsy) is trying to find biomarkers to screen at-risk groups for earlier diagnosis via a blood test.
Also, the European Union (EU)-funded PANCAIM project (pancreatic cancer artificial intelligence [AI] for genomics and personalized medicine) has developed an AI algorithm that detects small cancers in CT scans that even experienced radiologists might easily overlook.
The project’s head, Henkjan Huisman, is professor of medical imaging AI at Radboud University Medical Center, Nijmegen, the Netherlands. He told this news organization: “It’s an extremely important step, as 20% of people with pancreas cancer have the ability to undergo surgery, which means they might live substantially longer. We believe if the tumors are found earlier, thanks to the algorithm, they are smaller and more contained, and so substantially more than 20% of patients would be suitable for surgery, which would be a breakthrough.”
Dr. Löhr added that a messenger RNA vaccine is being developed in the United States to prevent pancreatic cancer from returning after surgery and is demonstrating encouraging results in its early trials.
The Road Toward Better Care
To improve cancer care in Europe, Dr. Carrato said: “Reference centers should be a requirement in health policy programs because the outcomes are much better than in centers which only perform fewer surgeries, and Pancreatic Cancer Europe is working with the EU in this direction.”
Finland is a country that appears to have succeeded in this regard. Its 2005 Health Care Act, for example, ensures that cancer patients are able to receive care in one of its five specialized hospitals.
More research funding is also needed. According to Pancreatic Cancer Europe, only 2% of EU funding on cancer is spent on pancreatic cancer.
The American Cancer Society’s Cancer Facts & Figures 2024 makes room for some optimism, with the 5-year survival rate in the United States jumping to 13% from 6% in the society’s 2014 report, as a result of earlier diagnoses and more personalized treatment. But, even with potentially longer survival rates, said Dr. Löhr, “we are still on the trajectory of pancreatic cancer being number two for cancer deaths by 2030.”
“We need more money on research, centralized surgery, and networking between European countries,” said Dr. Carrato. “This networking would need more money for prevention, better diagnosis, and treatment. The problem is pancreatic cancer incidence is increasing and mortality is also in parallel, and we are not making real progress in this scenario.”
A version of this article appeared on Medscape.com.
“It’s a health emergency for society, with mortality rates at over 90%,” warned Professor Alfredo Carrato, MD, PhD, the chairperson of Pancreatic Cancer Europe.
There are many challenges with pancreatic cancer: Lack of awareness, difficult to diagnose, no screening programs for the general population, poor survival rate, and limited treatment options.
Life expectancy at the time of diagnosis is just 4.6 months. Only 3% of people diagnosed with pancreatic cancer will survive for 5 years.
A 2024 systematic analysis in The Lancet suggested that people living in Western Europe are more likely to develop pancreatic cancer than those living anywhere else in the world.
Dr. Carrato, emeritus professor of medical oncology at the University of Alcalá, Madrid, Spain, wasn’t surprised. He told this news organization: “I think the lifestyle in Europe plays a part. We have all of the risk factors in society like obesity, our sedentary behavior, too much red meat consumption, and excess alcohol intake.”
Other risk factors include smoking, diabetes, chronic pancreatitis, and a family history.
The incidence of pancreatic cancer increases with age, so the longer life expectancy in Western Europe could also contribute to the region’s high rates.
A Silent Killer
Pancreatic cancer is difficult to identify. It is often asymptomatic. Symptoms that do show themselves, like back pain, weight loss, and nausea, are nonspecific and make early diagnosis challenging.
Professor Mattias Löhr from the Karolinska Institutet, Stockholm, Sweden, told this news organization: “It’s a dismal disease. It’s not accessible for any easy screening or surveillance. Even early diagnosis is too late with pancreatic cancer.”
There have been few advancements in patient outcomes over the past few decades.
Only about 20% of patients are suitable candidates for surgery that could prolong their lives.
Also, cancer reoccurs in two thirds of surgical candidates, said Dr. Carrato, and oncologists don’t know how to identify them in advance. “I have patients who survive 3 months and others who survive 4 or 5 years, so there’s a need to identify these subtypes at a molecular level for personalized, clinical, and translational research and therapies.”
Dr. Löhr agreed: “All of the medical therapies are not really working well enough for pancreatic cancer in sharp contrast to other cancers.”
How Can Rates Be Reduced?
“Pancreatic Cancer Europe is working in every EU state to try to raise awareness,” said Dr. Carrato. “We should have primary prevention programs to modify lifestyle risks. We also need funds for translational and clinical research. Secondary prevention isn’t possible yet as we haven’t identified the higher-risk population who would be the target for screening.”
Screening programs are available for the 10% of people who have a family history of pancreatic cancer. But, for the vast majority, there are no tests or screenings that allow for earlier detection.
“We need blood or stool tests that have high specificity and sensitivity that are cost-effective,” said Dr. Carrato.
“It’s a type of cancer with a particular and very aggressive biology. There is a lack of pancreatic tumor tissue for research, as many patients are diagnosed by fine-needle aspiration cytology. It’s a challenge for researchers. We have no biomarkers available to direct our decisions; no precision oncology,” he added.
Still, there are some encouraging developments.
The European PANCAID project (pancreatic cancer initial detection via liquid biopsy) is trying to find biomarkers to screen at-risk groups for earlier diagnosis via a blood test.
Also, the European Union (EU)-funded PANCAIM project (pancreatic cancer artificial intelligence [AI] for genomics and personalized medicine) has developed an AI algorithm that detects small cancers in CT scans that even experienced radiologists might easily overlook.
The project’s head, Henkjan Huisman, is professor of medical imaging AI at Radboud University Medical Center, Nijmegen, the Netherlands. He told this news organization: “It’s an extremely important step, as 20% of people with pancreas cancer have the ability to undergo surgery, which means they might live substantially longer. We believe if the tumors are found earlier, thanks to the algorithm, they are smaller and more contained, and so substantially more than 20% of patients would be suitable for surgery, which would be a breakthrough.”
Dr. Löhr added that a messenger RNA vaccine is being developed in the United States to prevent pancreatic cancer from returning after surgery and is demonstrating encouraging results in its early trials.
The Road Toward Better Care
To improve cancer care in Europe, Dr. Carrato said: “Reference centers should be a requirement in health policy programs because the outcomes are much better than in centers which only perform fewer surgeries, and Pancreatic Cancer Europe is working with the EU in this direction.”
Finland is a country that appears to have succeeded in this regard. Its 2005 Health Care Act, for example, ensures that cancer patients are able to receive care in one of its five specialized hospitals.
More research funding is also needed. According to Pancreatic Cancer Europe, only 2% of EU funding on cancer is spent on pancreatic cancer.
The American Cancer Society’s Cancer Facts & Figures 2024 makes room for some optimism, with the 5-year survival rate in the United States jumping to 13% from 6% in the society’s 2014 report, as a result of earlier diagnoses and more personalized treatment. But, even with potentially longer survival rates, said Dr. Löhr, “we are still on the trajectory of pancreatic cancer being number two for cancer deaths by 2030.”
“We need more money on research, centralized surgery, and networking between European countries,” said Dr. Carrato. “This networking would need more money for prevention, better diagnosis, and treatment. The problem is pancreatic cancer incidence is increasing and mortality is also in parallel, and we are not making real progress in this scenario.”
A version of this article appeared on Medscape.com.
Prolonged Sitting at Work Ups CVD and All-Cause Mortality, Daily Breaks May Help
However, daily breaks from sitting and leisure-time activity can help mitigate the “serious” risks associated with prolonged occupational sitting, the researchers say.
“As part of modern lifestyles, prolonged occupational sitting is considered normal and has not received due attention, even though its deleterious effect on health outcomes has been demonstrated,” wrote the authors, led by Wayne Gao, PhD, with Taipei Medical University College of Public Health, Taipei City, Taiwan.
“The importance of physical activity and moving around can never be overstated,” Michelle Bloom, MD, director of the cardio-oncology program at NYU Langone Health in New York, who wasn’t involved in the study, told this news organization.
“As a cardiologist, I bring this up at almost every visit with every patient regardless of why they’re seeing me, because I think that patients respond better when their doctor says it than when they just kind of know it in the back of their mind,” said Dr. Bloom, who is also a professor in the Division of Cardiology, NYU Grossman Long Island School of Medicine, New York.
The study was published online in JAMA Network Open.
Prolonged Sitting Hard on the Heart
2020 marked the first time that guidelines on physical activity from the World Health Organization recommended reducing sedentary behaviors owing to their health consequences. Less is known on the specific association of prolonged occupational sitting with health outcomes, especially in the context of low physical activity.
For their study, Dr. Gao and colleagues quantified health risks associated with prolonged sitting on the job and determined whether a certain threshold of physical activity may attenuate this risk.
Participants included 481,688 adults (mean age, 39 years; 53% women) in a health surveillance program in Taiwan. Data on occupational sitting, leisure-time physical activity, lifestyle, and metabolic parameters were collected.
During an average follow up of nearly 13 years, 26,257 participants died; more than half (57%) of the deaths occurred in individuals who mostly sat at work. There were 5371 CVD-related deaths, with 60% occurring in the mostly sitting group.
In multivariate analysis that adjusted for sex, age, education, smoking, drinking, and body mass index, adults who mostly sat at work had a 16% higher risk of dying of any cause (hazard ratio [HR], 1.16; 95% CI, 1.11-1.20) and a 34% increased risk of dying of CVD (HR, 1.34; 95% CI, 1.22-1.46) compared with those who mostly did not sit at work.
Adults who mostly alternated between sitting and not sitting at work were not at increased risk of all-cause mortality compared with individuals who mostly did not at work (HR, 1.01; 95% CI, 0.97-1.05).
Among adults who mostly sat at work and engaged in low (15-29 minutes) or no (< 15 minutes) daily leisure-time activity, increasing activity by 15 and 30 minutes per day, respectively, lowered the risk for mortality to a level similar to that of inactive individuals who mostly do not sit at work.
“Overall, our findings from a large prospective cohort help to strengthen the increasingly accumulating evidence linking a sedentary lifestyle and health risks,” the authors wrote.
“Systemic changes, such as more frequent breaks, standing desks, designated workplace areas for physical activity, and gym membership benefits, can help reduce risk,” they added.
Simple Yet Profound Message
Reached for comment, Anu Lala, MD, with Icahn School of Medicine at Mount Sinai and Mount Sinai Fuster Heart Hospital in New York, said this study provides a “simple yet profound message” about the dangers of prolonged sitting.
The finding of a 16% higher all-cause mortality in those who mostly sat at work after adjustment for major risk factors is “pretty remarkable. And for CVD mortality, it’s double that,” Dr. Lala told this news organization.
“I think we undervalue the importance of movement, however simple it is. Even simple actions, like squatting and standing up have benefits for the heart,” Dr. Lala added.
Dr. Bloom said she tells her patients, “You don’t have to go out tomorrow and run a marathon. Just get up a few times a day, walk a few laps in your office, walk back and forth from the mailbox, walk up and down your steps a couple of times — just do something more than you’re doing already.”
The study had no commercial funding. Dr. Gao and Dr. Bloom have no relevant disclosures. Dr. Lala has serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for Novartis, AstraZeneca, Merck, Bayer, Novo Nordisk, Cordio, Zoll, and Sequana Medical.
A version of this article appeared on Medscape.com.
However, daily breaks from sitting and leisure-time activity can help mitigate the “serious” risks associated with prolonged occupational sitting, the researchers say.
“As part of modern lifestyles, prolonged occupational sitting is considered normal and has not received due attention, even though its deleterious effect on health outcomes has been demonstrated,” wrote the authors, led by Wayne Gao, PhD, with Taipei Medical University College of Public Health, Taipei City, Taiwan.
“The importance of physical activity and moving around can never be overstated,” Michelle Bloom, MD, director of the cardio-oncology program at NYU Langone Health in New York, who wasn’t involved in the study, told this news organization.
“As a cardiologist, I bring this up at almost every visit with every patient regardless of why they’re seeing me, because I think that patients respond better when their doctor says it than when they just kind of know it in the back of their mind,” said Dr. Bloom, who is also a professor in the Division of Cardiology, NYU Grossman Long Island School of Medicine, New York.
The study was published online in JAMA Network Open.
Prolonged Sitting Hard on the Heart
2020 marked the first time that guidelines on physical activity from the World Health Organization recommended reducing sedentary behaviors owing to their health consequences. Less is known on the specific association of prolonged occupational sitting with health outcomes, especially in the context of low physical activity.
For their study, Dr. Gao and colleagues quantified health risks associated with prolonged sitting on the job and determined whether a certain threshold of physical activity may attenuate this risk.
Participants included 481,688 adults (mean age, 39 years; 53% women) in a health surveillance program in Taiwan. Data on occupational sitting, leisure-time physical activity, lifestyle, and metabolic parameters were collected.
During an average follow up of nearly 13 years, 26,257 participants died; more than half (57%) of the deaths occurred in individuals who mostly sat at work. There were 5371 CVD-related deaths, with 60% occurring in the mostly sitting group.
In multivariate analysis that adjusted for sex, age, education, smoking, drinking, and body mass index, adults who mostly sat at work had a 16% higher risk of dying of any cause (hazard ratio [HR], 1.16; 95% CI, 1.11-1.20) and a 34% increased risk of dying of CVD (HR, 1.34; 95% CI, 1.22-1.46) compared with those who mostly did not sit at work.
Adults who mostly alternated between sitting and not sitting at work were not at increased risk of all-cause mortality compared with individuals who mostly did not at work (HR, 1.01; 95% CI, 0.97-1.05).
Among adults who mostly sat at work and engaged in low (15-29 minutes) or no (< 15 minutes) daily leisure-time activity, increasing activity by 15 and 30 minutes per day, respectively, lowered the risk for mortality to a level similar to that of inactive individuals who mostly do not sit at work.
“Overall, our findings from a large prospective cohort help to strengthen the increasingly accumulating evidence linking a sedentary lifestyle and health risks,” the authors wrote.
“Systemic changes, such as more frequent breaks, standing desks, designated workplace areas for physical activity, and gym membership benefits, can help reduce risk,” they added.
Simple Yet Profound Message
Reached for comment, Anu Lala, MD, with Icahn School of Medicine at Mount Sinai and Mount Sinai Fuster Heart Hospital in New York, said this study provides a “simple yet profound message” about the dangers of prolonged sitting.
The finding of a 16% higher all-cause mortality in those who mostly sat at work after adjustment for major risk factors is “pretty remarkable. And for CVD mortality, it’s double that,” Dr. Lala told this news organization.
“I think we undervalue the importance of movement, however simple it is. Even simple actions, like squatting and standing up have benefits for the heart,” Dr. Lala added.
Dr. Bloom said she tells her patients, “You don’t have to go out tomorrow and run a marathon. Just get up a few times a day, walk a few laps in your office, walk back and forth from the mailbox, walk up and down your steps a couple of times — just do something more than you’re doing already.”
The study had no commercial funding. Dr. Gao and Dr. Bloom have no relevant disclosures. Dr. Lala has serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for Novartis, AstraZeneca, Merck, Bayer, Novo Nordisk, Cordio, Zoll, and Sequana Medical.
A version of this article appeared on Medscape.com.
However, daily breaks from sitting and leisure-time activity can help mitigate the “serious” risks associated with prolonged occupational sitting, the researchers say.
“As part of modern lifestyles, prolonged occupational sitting is considered normal and has not received due attention, even though its deleterious effect on health outcomes has been demonstrated,” wrote the authors, led by Wayne Gao, PhD, with Taipei Medical University College of Public Health, Taipei City, Taiwan.
“The importance of physical activity and moving around can never be overstated,” Michelle Bloom, MD, director of the cardio-oncology program at NYU Langone Health in New York, who wasn’t involved in the study, told this news organization.
“As a cardiologist, I bring this up at almost every visit with every patient regardless of why they’re seeing me, because I think that patients respond better when their doctor says it than when they just kind of know it in the back of their mind,” said Dr. Bloom, who is also a professor in the Division of Cardiology, NYU Grossman Long Island School of Medicine, New York.
The study was published online in JAMA Network Open.
Prolonged Sitting Hard on the Heart
2020 marked the first time that guidelines on physical activity from the World Health Organization recommended reducing sedentary behaviors owing to their health consequences. Less is known on the specific association of prolonged occupational sitting with health outcomes, especially in the context of low physical activity.
For their study, Dr. Gao and colleagues quantified health risks associated with prolonged sitting on the job and determined whether a certain threshold of physical activity may attenuate this risk.
Participants included 481,688 adults (mean age, 39 years; 53% women) in a health surveillance program in Taiwan. Data on occupational sitting, leisure-time physical activity, lifestyle, and metabolic parameters were collected.
During an average follow up of nearly 13 years, 26,257 participants died; more than half (57%) of the deaths occurred in individuals who mostly sat at work. There were 5371 CVD-related deaths, with 60% occurring in the mostly sitting group.
In multivariate analysis that adjusted for sex, age, education, smoking, drinking, and body mass index, adults who mostly sat at work had a 16% higher risk of dying of any cause (hazard ratio [HR], 1.16; 95% CI, 1.11-1.20) and a 34% increased risk of dying of CVD (HR, 1.34; 95% CI, 1.22-1.46) compared with those who mostly did not sit at work.
Adults who mostly alternated between sitting and not sitting at work were not at increased risk of all-cause mortality compared with individuals who mostly did not at work (HR, 1.01; 95% CI, 0.97-1.05).
Among adults who mostly sat at work and engaged in low (15-29 minutes) or no (< 15 minutes) daily leisure-time activity, increasing activity by 15 and 30 minutes per day, respectively, lowered the risk for mortality to a level similar to that of inactive individuals who mostly do not sit at work.
“Overall, our findings from a large prospective cohort help to strengthen the increasingly accumulating evidence linking a sedentary lifestyle and health risks,” the authors wrote.
“Systemic changes, such as more frequent breaks, standing desks, designated workplace areas for physical activity, and gym membership benefits, can help reduce risk,” they added.
Simple Yet Profound Message
Reached for comment, Anu Lala, MD, with Icahn School of Medicine at Mount Sinai and Mount Sinai Fuster Heart Hospital in New York, said this study provides a “simple yet profound message” about the dangers of prolonged sitting.
The finding of a 16% higher all-cause mortality in those who mostly sat at work after adjustment for major risk factors is “pretty remarkable. And for CVD mortality, it’s double that,” Dr. Lala told this news organization.
“I think we undervalue the importance of movement, however simple it is. Even simple actions, like squatting and standing up have benefits for the heart,” Dr. Lala added.
Dr. Bloom said she tells her patients, “You don’t have to go out tomorrow and run a marathon. Just get up a few times a day, walk a few laps in your office, walk back and forth from the mailbox, walk up and down your steps a couple of times — just do something more than you’re doing already.”
The study had no commercial funding. Dr. Gao and Dr. Bloom have no relevant disclosures. Dr. Lala has serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for Novartis, AstraZeneca, Merck, Bayer, Novo Nordisk, Cordio, Zoll, and Sequana Medical.
A version of this article appeared on Medscape.com.
FROM JAMA NETWORK OPEN
High-dose RT and long-term ADT improve survival in high-risk prostate cancer
For patients with high-risk prostate cancer, treatment with long-term androgen deprivation therapy (ADT) and high-dose radiation was associated with significantly better progression-free, cancer-specific, and overall survival compared with ADT and standard-dose radiation.
The investigators also found that the patients taking long-term ADT and high-dose radiation did not experience additional late urinary tract or gastrointestinal toxicities. Christophe Hennequin, MD, PhD, reported these and other findings of the Radiation Therapy in Treating Patients Receiving Hormone Therapy for Prostate Cancer (GETUG-AFU 18) trial, at the 2024 American Society for Clinical Oncology (ASCO) Genitourinary Cancers Symposium.
Among 505 patients randomly assigned to be treated with radiation therapy (RT) at either the standard 70 Gy dose or a high, 80 Gy dose followed by 3 years of adjuvant ADT, the 10-year progression-free survival (PFS) rate was 83.6% for patients who had received the 80 Gy dose, vs. 72.2% for patients who had received the 70 Gy dose. This translated into a hazard ratio (HR) for biochemical or clinical progression of 0.56 (P = .0005).
This PFS advantage for high-dose radiation was also reflected by an overall survival (OS) advantage, with 10-year OS rates of 77% vs. 65.9%, respectively, translating into a 39% reduction in risk of death (HR 0.61, P = .0039) for patients who had received the higher radiation dose, reported Dr. Hennequin, of the Hospital Saint Louis in Paris, France.
"We have now Level 1 evidence that high-dose RT with long-term ADT must be the standard of care in high-risk prostate cancer patients," he said at the meeting.
Dr. Hennequin noted that significantly more patients assigned to high-dose RT were treated with intensity modulated radiation therapy (IMRT) rather than conventional beam radiation, and emphasized that the superior results seen with the higher dose is likely due to the use of IMRT.
Prior evidence
Dr. Hennequin pointed to a meta-analysis published in The Lancet in 2022 which showed that among nearly 11,000 patients with a median follow-up of 11.4 years the addition of ADT to RT significantly improved metastasis-free survival, and that longer ADT reduced the risk of metastases by 16% compared with standard schedule ADT.
He also cited the DART 01/05 trial results, which were published in 2022 in The Lancet: Oncology, which found a clinically relevant benefit for 24 months vs. 4 months of adjuvant ADT following a minimum of 76 Gy radiation in patients with high-risk disease, but not among patients with intermediate-risk disease.
The GETUG-AFU 18 trial was designed to address the question of whether 80 Gy of radiation could improve outcomes compared with 70 Gy in patients treated with long-term ADT.
Study details and results
The investigators enrolled men with high-risk prostate cancer defined as either a prostate-specific antigen (PSA) level 20 ng/ml or greater, Gleason score 8 or higher, or clinical stage T3 or T4 disease, and after stratification by treatment center and lymph node resection randomly assigned them to receive either 70 Gy or 80 Gy RT followed by 3 years of ADT.
Approximately two-thirds of the patients in each study arm had one risk factor and about one-fourth had two risk factors. The remaining patients had all three high-risk defining factors.
Approximately 16.5% of patients in each arm had undergone lymph node dissection.
The median ADT duration was 33.4 months. In all, 82.9% of patients underwent pelvic lymph node radiation; lymph node radiation was not performed in those patients who had negative node dissection results.
Significantly more patients assigned to the 80 Gy dose were treated with IMRT (80.6% vs. 58.6%, P < .001).
The cancer-specific survival rate was also higher for the group receiving the 80 Gy dose, with a 10 year rate of 95.6% vs. 90% for patients treated with 70 Gy. This difference translated into a HR of 0.48 (P = .0090).
Comparable safety
The safety analysis, which included 248 patients who received 80 Gy and 251 who received 70 Gy, showed that the incidence rates of both late genitourinary and gastrointestinal toxicities were low and comparable between the groups. Grade 3 or greater late genitourinary toxicities were seen in 2.0% of patients treated with 80 Gy and 3.2% of those treated with 70 Gy. In both arms, only 1.6% of patients had grade 3 or greater later GI toxicities.
There were also no differences between the study arms in patient-reported quality of life measures related to either bowel or urinary symptoms.
Invited discussant Neha Vapiwala, MD, FACR, from Penn Medicine in Philadelphia commented that the results of the GETUG-AFU 18 trial suggest that "if you had even lower-dose systemic therapy that the radiation control at the local level - local-regional level in this case - can in fact contribute to the prevention of distant metastases and can contribute to cancer-specific survival."
She said that with the efficacy results and the comparable toxicity and quality of life measures, dose-escalated radiation therapy and long-term ADT appear to offer a synergistic benefit.
The results are "practice-affirming for many, perhaps practice-changing for some if you're not already offering this," she said.
For patients with high-risk prostate cancer, treatment with long-term androgen deprivation therapy (ADT) and high-dose radiation was associated with significantly better progression-free, cancer-specific, and overall survival compared with ADT and standard-dose radiation.
The investigators also found that the patients taking long-term ADT and high-dose radiation did not experience additional late urinary tract or gastrointestinal toxicities. Christophe Hennequin, MD, PhD, reported these and other findings of the Radiation Therapy in Treating Patients Receiving Hormone Therapy for Prostate Cancer (GETUG-AFU 18) trial, at the 2024 American Society for Clinical Oncology (ASCO) Genitourinary Cancers Symposium.
Among 505 patients randomly assigned to be treated with radiation therapy (RT) at either the standard 70 Gy dose or a high, 80 Gy dose followed by 3 years of adjuvant ADT, the 10-year progression-free survival (PFS) rate was 83.6% for patients who had received the 80 Gy dose, vs. 72.2% for patients who had received the 70 Gy dose. This translated into a hazard ratio (HR) for biochemical or clinical progression of 0.56 (P = .0005).
This PFS advantage for high-dose radiation was also reflected by an overall survival (OS) advantage, with 10-year OS rates of 77% vs. 65.9%, respectively, translating into a 39% reduction in risk of death (HR 0.61, P = .0039) for patients who had received the higher radiation dose, reported Dr. Hennequin, of the Hospital Saint Louis in Paris, France.
"We have now Level 1 evidence that high-dose RT with long-term ADT must be the standard of care in high-risk prostate cancer patients," he said at the meeting.
Dr. Hennequin noted that significantly more patients assigned to high-dose RT were treated with intensity modulated radiation therapy (IMRT) rather than conventional beam radiation, and emphasized that the superior results seen with the higher dose is likely due to the use of IMRT.
Prior evidence
Dr. Hennequin pointed to a meta-analysis published in The Lancet in 2022 which showed that among nearly 11,000 patients with a median follow-up of 11.4 years the addition of ADT to RT significantly improved metastasis-free survival, and that longer ADT reduced the risk of metastases by 16% compared with standard schedule ADT.
He also cited the DART 01/05 trial results, which were published in 2022 in The Lancet: Oncology, which found a clinically relevant benefit for 24 months vs. 4 months of adjuvant ADT following a minimum of 76 Gy radiation in patients with high-risk disease, but not among patients with intermediate-risk disease.
The GETUG-AFU 18 trial was designed to address the question of whether 80 Gy of radiation could improve outcomes compared with 70 Gy in patients treated with long-term ADT.
Study details and results
The investigators enrolled men with high-risk prostate cancer defined as either a prostate-specific antigen (PSA) level 20 ng/ml or greater, Gleason score 8 or higher, or clinical stage T3 or T4 disease, and after stratification by treatment center and lymph node resection randomly assigned them to receive either 70 Gy or 80 Gy RT followed by 3 years of ADT.
Approximately two-thirds of the patients in each study arm had one risk factor and about one-fourth had two risk factors. The remaining patients had all three high-risk defining factors.
Approximately 16.5% of patients in each arm had undergone lymph node dissection.
The median ADT duration was 33.4 months. In all, 82.9% of patients underwent pelvic lymph node radiation; lymph node radiation was not performed in those patients who had negative node dissection results.
Significantly more patients assigned to the 80 Gy dose were treated with IMRT (80.6% vs. 58.6%, P < .001).
The cancer-specific survival rate was also higher for the group receiving the 80 Gy dose, with a 10 year rate of 95.6% vs. 90% for patients treated with 70 Gy. This difference translated into a HR of 0.48 (P = .0090).
Comparable safety
The safety analysis, which included 248 patients who received 80 Gy and 251 who received 70 Gy, showed that the incidence rates of both late genitourinary and gastrointestinal toxicities were low and comparable between the groups. Grade 3 or greater late genitourinary toxicities were seen in 2.0% of patients treated with 80 Gy and 3.2% of those treated with 70 Gy. In both arms, only 1.6% of patients had grade 3 or greater later GI toxicities.
There were also no differences between the study arms in patient-reported quality of life measures related to either bowel or urinary symptoms.
Invited discussant Neha Vapiwala, MD, FACR, from Penn Medicine in Philadelphia commented that the results of the GETUG-AFU 18 trial suggest that "if you had even lower-dose systemic therapy that the radiation control at the local level - local-regional level in this case - can in fact contribute to the prevention of distant metastases and can contribute to cancer-specific survival."
She said that with the efficacy results and the comparable toxicity and quality of life measures, dose-escalated radiation therapy and long-term ADT appear to offer a synergistic benefit.
The results are "practice-affirming for many, perhaps practice-changing for some if you're not already offering this," she said.
For patients with high-risk prostate cancer, treatment with long-term androgen deprivation therapy (ADT) and high-dose radiation was associated with significantly better progression-free, cancer-specific, and overall survival compared with ADT and standard-dose radiation.
The investigators also found that the patients taking long-term ADT and high-dose radiation did not experience additional late urinary tract or gastrointestinal toxicities. Christophe Hennequin, MD, PhD, reported these and other findings of the Radiation Therapy in Treating Patients Receiving Hormone Therapy for Prostate Cancer (GETUG-AFU 18) trial, at the 2024 American Society for Clinical Oncology (ASCO) Genitourinary Cancers Symposium.
Among 505 patients randomly assigned to be treated with radiation therapy (RT) at either the standard 70 Gy dose or a high, 80 Gy dose followed by 3 years of adjuvant ADT, the 10-year progression-free survival (PFS) rate was 83.6% for patients who had received the 80 Gy dose, vs. 72.2% for patients who had received the 70 Gy dose. This translated into a hazard ratio (HR) for biochemical or clinical progression of 0.56 (P = .0005).
This PFS advantage for high-dose radiation was also reflected by an overall survival (OS) advantage, with 10-year OS rates of 77% vs. 65.9%, respectively, translating into a 39% reduction in risk of death (HR 0.61, P = .0039) for patients who had received the higher radiation dose, reported Dr. Hennequin, of the Hospital Saint Louis in Paris, France.
"We have now Level 1 evidence that high-dose RT with long-term ADT must be the standard of care in high-risk prostate cancer patients," he said at the meeting.
Dr. Hennequin noted that significantly more patients assigned to high-dose RT were treated with intensity modulated radiation therapy (IMRT) rather than conventional beam radiation, and emphasized that the superior results seen with the higher dose is likely due to the use of IMRT.
Prior evidence
Dr. Hennequin pointed to a meta-analysis published in The Lancet in 2022 which showed that among nearly 11,000 patients with a median follow-up of 11.4 years the addition of ADT to RT significantly improved metastasis-free survival, and that longer ADT reduced the risk of metastases by 16% compared with standard schedule ADT.
He also cited the DART 01/05 trial results, which were published in 2022 in The Lancet: Oncology, which found a clinically relevant benefit for 24 months vs. 4 months of adjuvant ADT following a minimum of 76 Gy radiation in patients with high-risk disease, but not among patients with intermediate-risk disease.
The GETUG-AFU 18 trial was designed to address the question of whether 80 Gy of radiation could improve outcomes compared with 70 Gy in patients treated with long-term ADT.
Study details and results
The investigators enrolled men with high-risk prostate cancer defined as either a prostate-specific antigen (PSA) level 20 ng/ml or greater, Gleason score 8 or higher, or clinical stage T3 or T4 disease, and after stratification by treatment center and lymph node resection randomly assigned them to receive either 70 Gy or 80 Gy RT followed by 3 years of ADT.
Approximately two-thirds of the patients in each study arm had one risk factor and about one-fourth had two risk factors. The remaining patients had all three high-risk defining factors.
Approximately 16.5% of patients in each arm had undergone lymph node dissection.
The median ADT duration was 33.4 months. In all, 82.9% of patients underwent pelvic lymph node radiation; lymph node radiation was not performed in those patients who had negative node dissection results.
Significantly more patients assigned to the 80 Gy dose were treated with IMRT (80.6% vs. 58.6%, P < .001).
The cancer-specific survival rate was also higher for the group receiving the 80 Gy dose, with a 10 year rate of 95.6% vs. 90% for patients treated with 70 Gy. This difference translated into a HR of 0.48 (P = .0090).
Comparable safety
The safety analysis, which included 248 patients who received 80 Gy and 251 who received 70 Gy, showed that the incidence rates of both late genitourinary and gastrointestinal toxicities were low and comparable between the groups. Grade 3 or greater late genitourinary toxicities were seen in 2.0% of patients treated with 80 Gy and 3.2% of those treated with 70 Gy. In both arms, only 1.6% of patients had grade 3 or greater later GI toxicities.
There were also no differences between the study arms in patient-reported quality of life measures related to either bowel or urinary symptoms.
Invited discussant Neha Vapiwala, MD, FACR, from Penn Medicine in Philadelphia commented that the results of the GETUG-AFU 18 trial suggest that "if you had even lower-dose systemic therapy that the radiation control at the local level - local-regional level in this case - can in fact contribute to the prevention of distant metastases and can contribute to cancer-specific survival."
She said that with the efficacy results and the comparable toxicity and quality of life measures, dose-escalated radiation therapy and long-term ADT appear to offer a synergistic benefit.
The results are "practice-affirming for many, perhaps practice-changing for some if you're not already offering this," she said.
FROM ASCO GU 2024
Dana-Farber Moves to Retract, Correct Dozens of Cancer Papers Amid Allegations
News of the investigation follows a blog post by British molecular biologist Sholto David, MD, who flagged almost 60 papers published between 1997 and 2017 that contained image manipulation and other errors. Some of the papers were published by Dana-Farber’s chief executive officer, Laurie Glimcher, MD, and chief operating officer, William Hahn, MD, on topics including multiple myeloma and immune cells.
Mr. David, who blogs about research integrity, highlighted numerous errors and irregularities, including copying and pasting images across multiple experiments to represent different days within the same experiment, sometimes rotating or stretching images.
In one case, Mr. David equated the manipulation with tactics used by “hapless Chinese papermills” and concluded that “a swathe of research coming out of [Dana-Farber] authored by the most senior researchers and managers appears to be hopelessly corrupt with errors that are obvious from just a cursory reading the papers.”
“Imagine what mistakes might be found in the raw data if anyone was allowed to look!” he wrote.
Barrett Rollins, MD, PhD, Dana-Farber Cancer Institute’s research integrity officer, declined to comment on whether the errors represent scientific misconduct, according to STAT. Rollins told ScienceInsider that the “presence of image discrepancies in a paper is not evidence of an author’s intent to deceive.”
Access to new artificial intelligence tools is making it easier for data sleuths, like Mr. David, to unearth data manipulation and errors.
The current investigation closely follows two other investigations into the published work of Harvard University’s former president, Claudine Gay, and Stanford University’s former president, Marc Tessier-Lavigne, which led both to resign their posts.
A version of this article appeared on Medscape.com.
News of the investigation follows a blog post by British molecular biologist Sholto David, MD, who flagged almost 60 papers published between 1997 and 2017 that contained image manipulation and other errors. Some of the papers were published by Dana-Farber’s chief executive officer, Laurie Glimcher, MD, and chief operating officer, William Hahn, MD, on topics including multiple myeloma and immune cells.
Mr. David, who blogs about research integrity, highlighted numerous errors and irregularities, including copying and pasting images across multiple experiments to represent different days within the same experiment, sometimes rotating or stretching images.
In one case, Mr. David equated the manipulation with tactics used by “hapless Chinese papermills” and concluded that “a swathe of research coming out of [Dana-Farber] authored by the most senior researchers and managers appears to be hopelessly corrupt with errors that are obvious from just a cursory reading the papers.”
“Imagine what mistakes might be found in the raw data if anyone was allowed to look!” he wrote.
Barrett Rollins, MD, PhD, Dana-Farber Cancer Institute’s research integrity officer, declined to comment on whether the errors represent scientific misconduct, according to STAT. Rollins told ScienceInsider that the “presence of image discrepancies in a paper is not evidence of an author’s intent to deceive.”
Access to new artificial intelligence tools is making it easier for data sleuths, like Mr. David, to unearth data manipulation and errors.
The current investigation closely follows two other investigations into the published work of Harvard University’s former president, Claudine Gay, and Stanford University’s former president, Marc Tessier-Lavigne, which led both to resign their posts.
A version of this article appeared on Medscape.com.
News of the investigation follows a blog post by British molecular biologist Sholto David, MD, who flagged almost 60 papers published between 1997 and 2017 that contained image manipulation and other errors. Some of the papers were published by Dana-Farber’s chief executive officer, Laurie Glimcher, MD, and chief operating officer, William Hahn, MD, on topics including multiple myeloma and immune cells.
Mr. David, who blogs about research integrity, highlighted numerous errors and irregularities, including copying and pasting images across multiple experiments to represent different days within the same experiment, sometimes rotating or stretching images.
In one case, Mr. David equated the manipulation with tactics used by “hapless Chinese papermills” and concluded that “a swathe of research coming out of [Dana-Farber] authored by the most senior researchers and managers appears to be hopelessly corrupt with errors that are obvious from just a cursory reading the papers.”
“Imagine what mistakes might be found in the raw data if anyone was allowed to look!” he wrote.
Barrett Rollins, MD, PhD, Dana-Farber Cancer Institute’s research integrity officer, declined to comment on whether the errors represent scientific misconduct, according to STAT. Rollins told ScienceInsider that the “presence of image discrepancies in a paper is not evidence of an author’s intent to deceive.”
Access to new artificial intelligence tools is making it easier for data sleuths, like Mr. David, to unearth data manipulation and errors.
The current investigation closely follows two other investigations into the published work of Harvard University’s former president, Claudine Gay, and Stanford University’s former president, Marc Tessier-Lavigne, which led both to resign their posts.
A version of this article appeared on Medscape.com.