MDedge Pediatrics

TOPLINE:

Atopic dermatitis (AD) in early childhood is associated with an increased risk for inflammatory bowel disease (IBD) later in life, but atopic manifestations are generally not associated with IBD.

METHODOLOGY:

• Studies examining the link between atopy and IBD have yielded inconsistent results. Many of these studies included adults, introducing recall bias, or relied on physician diagnoses that might have overlooked mild cases.
• Researchers analyzed prospectively collected data on 83,311 children from two cohort studies, ABIS (1997-1999) and MoBa (1999-2008), who were followed up from birth until 2021 or a diagnosis of IBD.
• Information on parents was collected prospectively via questionnaires on any atopy their children might have developed by the age of 3 years. Atopy included conditions such as AD, asthma, food allergy, or allergic rhinitis.

TAKEAWAY:

• A total of 301 participants were diagnosed with IBD over 1,174,756 person-years of follow-up. By the age of 3 years, 31,671 children (38%) were reported to have any atopic manifestation.
• Children with AD at the age of 3 years demonstrated a significantly higher risk for IBD (pooled adjusted hazard ratio [aHR], 1.46), Crohn’s disease (pooled aHR, 1.53), and ulcerative colitis (pooled aHR, 1.78).
• Any atopic manifestation by the age of 3 years was not associated with a subsequent risk for IBD, Crohn’s disease, or ulcerative colitis, nor were analyses focused on early-life food-related allergy, asthma, and allergic rhinitis.

IN PRACTICE:

According to the authors, these findings suggested potential shared underlying causes between AD and IBD, which could help identify individuals at risk, and “a deeper understanding could significantly benefit the development of novel treatment approaches capable of effectively addressing both conditions, consequently enhancing patient outcomes.”

SOURCE:

This study, led by Tereza Lerchova, MD, PhD, Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, was published online in The Journal of Pediatrics.

LIMITATIONS:

The findings of this study were mostly related to childhood-onset IBD instead of IBD in adult life. Lower participation in the MoBa study could limit generalizability to a broader population. In addition, there might have been lower participation from families without atopic manifestations.

DISCLOSURES:

The study was funded by the Swedish Society for Medical Research, Swedish Research Council, and ALF and supported by grants from the Swedish Child Diabetes Foundation, Swedish Council for Working Life and Social Research, Swedish Research Council, Medical Research Council of Southeast Sweden, JDRF Wallenberg Foundation, Linkoping University, and Joanna Cocozza Foundation. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

Atopic dermatitis (AD) in early childhood is associated with an increased risk for inflammatory bowel disease (IBD) later in life, but atopic manifestations are generally not associated with IBD.

METHODOLOGY:

• Studies examining the link between atopy and IBD have yielded inconsistent results. Many of these studies included adults, introducing recall bias, or relied on physician diagnoses that might have overlooked mild cases.
• Researchers analyzed prospectively collected data on 83,311 children from two cohort studies, ABIS (1997-1999) and MoBa (1999-2008), who were followed up from birth until 2021 or a diagnosis of IBD.
• Information on parents was collected prospectively via questionnaires on any atopy their children might have developed by the age of 3 years. Atopy included conditions such as AD, asthma, food allergy, or allergic rhinitis.

TAKEAWAY:

• A total of 301 participants were diagnosed with IBD over 1,174,756 person-years of follow-up. By the age of 3 years, 31,671 children (38%) were reported to have any atopic manifestation.
• Children with AD at the age of 3 years demonstrated a significantly higher risk for IBD (pooled adjusted hazard ratio [aHR], 1.46), Crohn’s disease (pooled aHR, 1.53), and ulcerative colitis (pooled aHR, 1.78).
• Any atopic manifestation by the age of 3 years was not associated with a subsequent risk for IBD, Crohn’s disease, or ulcerative colitis, nor were analyses focused on early-life food-related allergy, asthma, and allergic rhinitis.

IN PRACTICE:

According to the authors, these findings suggested potential shared underlying causes between AD and IBD, which could help identify individuals at risk, and “a deeper understanding could significantly benefit the development of novel treatment approaches capable of effectively addressing both conditions, consequently enhancing patient outcomes.”

SOURCE:

This study, led by Tereza Lerchova, MD, PhD, Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, was published online in The Journal of Pediatrics.

LIMITATIONS:

The findings of this study were mostly related to childhood-onset IBD instead of IBD in adult life. Lower participation in the MoBa study could limit generalizability to a broader population. In addition, there might have been lower participation from families without atopic manifestations.

DISCLOSURES:

The study was funded by the Swedish Society for Medical Research, Swedish Research Council, and ALF and supported by grants from the Swedish Child Diabetes Foundation, Swedish Council for Working Life and Social Research, Swedish Research Council, Medical Research Council of Southeast Sweden, JDRF Wallenberg Foundation, Linkoping University, and Joanna Cocozza Foundation. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

Atopic dermatitis (AD) in early childhood is associated with an increased risk for inflammatory bowel disease (IBD) later in life, but atopic manifestations are generally not associated with IBD.

METHODOLOGY:

• Studies examining the link between atopy and IBD have yielded inconsistent results. Many of these studies included adults, introducing recall bias, or relied on physician diagnoses that might have overlooked mild cases.
• Researchers analyzed prospectively collected data on 83,311 children from two cohort studies, ABIS (1997-1999) and MoBa (1999-2008), who were followed up from birth until 2021 or a diagnosis of IBD.
• Information on parents was collected prospectively via questionnaires on any atopy their children might have developed by the age of 3 years. Atopy included conditions such as AD, asthma, food allergy, or allergic rhinitis.

TAKEAWAY:

• A total of 301 participants were diagnosed with IBD over 1,174,756 person-years of follow-up. By the age of 3 years, 31,671 children (38%) were reported to have any atopic manifestation.
• Children with AD at the age of 3 years demonstrated a significantly higher risk for IBD (pooled adjusted hazard ratio [aHR], 1.46), Crohn’s disease (pooled aHR, 1.53), and ulcerative colitis (pooled aHR, 1.78).
• Any atopic manifestation by the age of 3 years was not associated with a subsequent risk for IBD, Crohn’s disease, or ulcerative colitis, nor were analyses focused on early-life food-related allergy, asthma, and allergic rhinitis.

IN PRACTICE:

According to the authors, these findings suggested potential shared underlying causes between AD and IBD, which could help identify individuals at risk, and “a deeper understanding could significantly benefit the development of novel treatment approaches capable of effectively addressing both conditions, consequently enhancing patient outcomes.”

SOURCE:

This study, led by Tereza Lerchova, MD, PhD, Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, was published online in The Journal of Pediatrics.

LIMITATIONS:

The findings of this study were mostly related to childhood-onset IBD instead of IBD in adult life. Lower participation in the MoBa study could limit generalizability to a broader population. In addition, there might have been lower participation from families without atopic manifestations.

DISCLOSURES:

The study was funded by the Swedish Society for Medical Research, Swedish Research Council, and ALF and supported by grants from the Swedish Child Diabetes Foundation, Swedish Council for Working Life and Social Research, Swedish Research Council, Medical Research Council of Southeast Sweden, JDRF Wallenberg Foundation, Linkoping University, and Joanna Cocozza Foundation. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

SAN DIEGO — A novel multicancer early detection (MCED) blood test has demonstrated promising real-world results in detecting new cancers, including several cases of early-stage disease.

This was the conclusion of recent data presented by Ora Karp Gordon, MD, MS, during a session at the American Association for Cancer Research annual meeting.

The MCED test, known as Galleri, was made clinically available in the United States in April 2021. Developed by GRAIL LLC, the test analyzes cell-free DNA in the blood using targeted methylation analysis and machine learning to detect the presence of a cancer signal and determine its organ of origin or cancer signal origin. The initial screening of over 53,000 individuals with the Galleri test detected a cancer signal in 1.1% of participants.

The new real-world analysis examines the outcomes of repeat MCED testing in 5,794 individuals.

The study looked at individuals who initially received a ‘no cancer signal detected’ result and then underwent a second Galleri test. Over 80% of participants received their follow-up test 10-18 months after the first, with a median interval between blood draws of 12.9 months.

“The repeat tests detect those cancer cases that have reached the detection threshold since their last MCED test, which should be less than one year of incidence,” Dr. Gordon, professor at Saint John’s Cancer Institute, Santa Monica, California, said in an interview. “We are just now starting to see results from patients who get their second and even third round of screening.”

“Galleri is recommended to be used annually in addition to USPSTF [US Preventive Services Task Force]–recommended cancer screening tests, like mammography and colonoscopy,” she said.

This recommendation is based on a modeling study suggesting that annual screening would improve stage shift, diagnostic yield, and potentially mortality when compared to biennial screening, although biennial screening was still favorable compared with no screening, she explained.
 

Early Real-World Evidence of Repeat Testing

Among the cohort of 5,794 individuals who received repeat testing, 26 received a positive cancer signal on their second test, yielding a cancer signal detection rate of 0.45% (95% CI: 0.31%-0.66%). The cancer signal detection rate was slightly higher in men. The rate was 0.50% (95% CI: 0.32%-0.81%; 17 of 3367) in men versus 0.37% (95% CI: 0.2%-0.7%; 9 of 2427) in women.

During her presentation, Dr. Gordon highlighted that the repeat testing signal detection rate was lower than the initial 0.95% rate (95% CI: 0.87-1.0; 510 of 53,744) seen in the previous larger cohort of patients who were retested at 1 year.

She acknowledged that the lower cancer signal detection rate of repeat testing may indicate some degree of ‘early adopter’ bias, where those who return for a second test are systematically different from the general screening population. This could suggest that broader population-level screening may yield different results, she continued.
 

Shift Toward Unscreened Cancers

The top cancer types identified in the second round of testing were lymphoid, head and neck, bladder/urothelial, colorectal, and anal cancers. Clinicians were able to confirm clinical outcomes in 12 of 26 cases, in which cancer signals were detected. Of those 12 cases, 8 individuals received a cancer diagnosis and 4 did not have cancer. The remaining 14 of 26 cases in which cancer signals were detected are still under investigation.

“We found a shift away from USPSTF screen-detected cancers, like breast, lung, and prostate, and relative increase in unscreened urinary, head and neck, and lymphoid cancers, with 75% of cancers being those without any screening guidelines,” Dr. Gordon said in an interview.

She added that patients who choose to retest may have different cancer rates for several reasons, including bias toward a population that is health conscious and adhered to all recommended cancer screening.

“So the shift toward unscreened cancers is not unexpected and highlights the value of Galleri,” she said, but also acknowledged that “continued monitoring is needed to see if this translates in a persistent finding over time and tests.”
 

Shift Toward Early-Stage Cancers

Staging information was available for five cases, and Dr. Gordon highlighted in her talk that four of these confirmed cancers were stage I, including cancers of the anus, head and neck, bladder, and lymphoma. The fifth confirmed cancer with staging information was stage IV ovarian cancer.

“It is still early, and the numbers are very small, but the detection of early-stage cancers with second annual testing is very encouraging as these are the cases where MCED testing could have the greatest impact in improving outcomes through earlier treatment,” Dr. Gordon told this publication.

During an interview after the talk, Kenneth L. Kehl, MD, MPH, echoed that data must be confirmed in larger cohorts.

“The shift toward earlier stage cancers that are less detectable by standard screening methods is an interesting result, but we need to be cautious since the numbers were relatively small, and we do not have data on cancers that were diagnosed among patients whose second MCED test was also negative,” said Dr. Kehl, a medical oncologist at Dana-Farber Cancer Institute, Boston.
 

MCED Results Could Help Direct Diagnostic Workup

The test’s ability to predict the organ of origin was highly accurate, correctly identifying the cancer type in all eight confirmed cases. Among the eight cases with a confirmed cancer diagnosis, the accuracy of the first prediction was 100%, and diagnoses included invasive cancers across multiple tissues and organs, including anus, colon, head and neck, urothelial tract, ovary, and the lymphatic system.

“The fact that the site of origin for 100% of confirmed cancers was accurately predicted with GRAIL’s CSO by Galleri test confirms the promise that this can guide workup when a cancer signal is detected,” Dr. Gordon noted in the interview.
 

Looking Ahead

Dr. Kehl, who was not involved in the MCED study, noted in an interview that “further data on test characteristics beyond positive predictive value, including the sensitivity, specificity, and negative predictive value, as well as demonstration of clinical benefit — ideally in a randomized trial — will likely be required for MCED testing to become a standard public health recommendation.”

He added that challenges associated with implementing annual screening with MCED tests include the risks of both false positives and false negatives as testing becomes more widely available.

“False positives cause anxiety and lead to additional testing that may carry its own risks, and we need to understand if potentially false negative tests will be associated with less uptake of established screening strategies,” Dr. Kehl said in an interview. However, he noted that serial testing could lead to more frequent diagnoses of early-stage cancers that may be less detectable by standard methods.

Dr. Gordon reported financial relationships with GRAIL LLC and Genetic Technologies Corporation. Dr. Kehl reported no relationships with entities whose primary business is producing, marketing, selling, reselling, or distributing healthcare products used by or on patients.

SAN DIEGO — A novel multicancer early detection (MCED) blood test has demonstrated promising real-world results in detecting new cancers, including several cases of early-stage disease.

This was the conclusion of recent data presented by Ora Karp Gordon, MD, MS, during a session at the American Association for Cancer Research annual meeting.

The MCED test, known as Galleri, was made clinically available in the United States in April 2021. Developed by GRAIL LLC, the test analyzes cell-free DNA in the blood using targeted methylation analysis and machine learning to detect the presence of a cancer signal and determine its organ of origin or cancer signal origin. The initial screening of over 53,000 individuals with the Galleri test detected a cancer signal in 1.1% of participants.

The new real-world analysis examines the outcomes of repeat MCED testing in 5,794 individuals.

The study looked at individuals who initially received a ‘no cancer signal detected’ result and then underwent a second Galleri test. Over 80% of participants received their follow-up test 10-18 months after the first, with a median interval between blood draws of 12.9 months.

“The repeat tests detect those cancer cases that have reached the detection threshold since their last MCED test, which should be less than one year of incidence,” Dr. Gordon, professor at Saint John’s Cancer Institute, Santa Monica, California, said in an interview. “We are just now starting to see results from patients who get their second and even third round of screening.”

“Galleri is recommended to be used annually in addition to USPSTF [US Preventive Services Task Force]–recommended cancer screening tests, like mammography and colonoscopy,” she said.

This recommendation is based on a modeling study suggesting that annual screening would improve stage shift, diagnostic yield, and potentially mortality when compared to biennial screening, although biennial screening was still favorable compared with no screening, she explained.
 

Early Real-World Evidence of Repeat Testing

Among the cohort of 5,794 individuals who received repeat testing, 26 received a positive cancer signal on their second test, yielding a cancer signal detection rate of 0.45% (95% CI: 0.31%-0.66%). The cancer signal detection rate was slightly higher in men. The rate was 0.50% (95% CI: 0.32%-0.81%; 17 of 3367) in men versus 0.37% (95% CI: 0.2%-0.7%; 9 of 2427) in women.

During her presentation, Dr. Gordon highlighted that the repeat testing signal detection rate was lower than the initial 0.95% rate (95% CI: 0.87-1.0; 510 of 53,744) seen in the previous larger cohort of patients who were retested at 1 year.

She acknowledged that the lower cancer signal detection rate of repeat testing may indicate some degree of ‘early adopter’ bias, where those who return for a second test are systematically different from the general screening population. This could suggest that broader population-level screening may yield different results, she continued.
 

Shift Toward Unscreened Cancers

The top cancer types identified in the second round of testing were lymphoid, head and neck, bladder/urothelial, colorectal, and anal cancers. Clinicians were able to confirm clinical outcomes in 12 of 26 cases, in which cancer signals were detected. Of those 12 cases, 8 individuals received a cancer diagnosis and 4 did not have cancer. The remaining 14 of 26 cases in which cancer signals were detected are still under investigation.

“We found a shift away from USPSTF screen-detected cancers, like breast, lung, and prostate, and relative increase in unscreened urinary, head and neck, and lymphoid cancers, with 75% of cancers being those without any screening guidelines,” Dr. Gordon said in an interview.

She added that patients who choose to retest may have different cancer rates for several reasons, including bias toward a population that is health conscious and adhered to all recommended cancer screening.

“So the shift toward unscreened cancers is not unexpected and highlights the value of Galleri,” she said, but also acknowledged that “continued monitoring is needed to see if this translates in a persistent finding over time and tests.”
 

Shift Toward Early-Stage Cancers

Staging information was available for five cases, and Dr. Gordon highlighted in her talk that four of these confirmed cancers were stage I, including cancers of the anus, head and neck, bladder, and lymphoma. The fifth confirmed cancer with staging information was stage IV ovarian cancer.

“It is still early, and the numbers are very small, but the detection of early-stage cancers with second annual testing is very encouraging as these are the cases where MCED testing could have the greatest impact in improving outcomes through earlier treatment,” Dr. Gordon told this publication.

During an interview after the talk, Kenneth L. Kehl, MD, MPH, echoed that data must be confirmed in larger cohorts.

“The shift toward earlier stage cancers that are less detectable by standard screening methods is an interesting result, but we need to be cautious since the numbers were relatively small, and we do not have data on cancers that were diagnosed among patients whose second MCED test was also negative,” said Dr. Kehl, a medical oncologist at Dana-Farber Cancer Institute, Boston.
 

MCED Results Could Help Direct Diagnostic Workup

The test’s ability to predict the organ of origin was highly accurate, correctly identifying the cancer type in all eight confirmed cases. Among the eight cases with a confirmed cancer diagnosis, the accuracy of the first prediction was 100%, and diagnoses included invasive cancers across multiple tissues and organs, including anus, colon, head and neck, urothelial tract, ovary, and the lymphatic system.

“The fact that the site of origin for 100% of confirmed cancers was accurately predicted with GRAIL’s CSO by Galleri test confirms the promise that this can guide workup when a cancer signal is detected,” Dr. Gordon noted in the interview.
 

Looking Ahead

Dr. Kehl, who was not involved in the MCED study, noted in an interview that “further data on test characteristics beyond positive predictive value, including the sensitivity, specificity, and negative predictive value, as well as demonstration of clinical benefit — ideally in a randomized trial — will likely be required for MCED testing to become a standard public health recommendation.”

He added that challenges associated with implementing annual screening with MCED tests include the risks of both false positives and false negatives as testing becomes more widely available.

“False positives cause anxiety and lead to additional testing that may carry its own risks, and we need to understand if potentially false negative tests will be associated with less uptake of established screening strategies,” Dr. Kehl said in an interview. However, he noted that serial testing could lead to more frequent diagnoses of early-stage cancers that may be less detectable by standard methods.

Dr. Gordon reported financial relationships with GRAIL LLC and Genetic Technologies Corporation. Dr. Kehl reported no relationships with entities whose primary business is producing, marketing, selling, reselling, or distributing healthcare products used by or on patients.

SAN DIEGO — A novel multicancer early detection (MCED) blood test has demonstrated promising real-world results in detecting new cancers, including several cases of early-stage disease.

This was the conclusion of recent data presented by Ora Karp Gordon, MD, MS, during a session at the American Association for Cancer Research annual meeting.

The MCED test, known as Galleri, was made clinically available in the United States in April 2021. Developed by GRAIL LLC, the test analyzes cell-free DNA in the blood using targeted methylation analysis and machine learning to detect the presence of a cancer signal and determine its organ of origin or cancer signal origin. The initial screening of over 53,000 individuals with the Galleri test detected a cancer signal in 1.1% of participants.

The new real-world analysis examines the outcomes of repeat MCED testing in 5,794 individuals.

The study looked at individuals who initially received a ‘no cancer signal detected’ result and then underwent a second Galleri test. Over 80% of participants received their follow-up test 10-18 months after the first, with a median interval between blood draws of 12.9 months.

“The repeat tests detect those cancer cases that have reached the detection threshold since their last MCED test, which should be less than one year of incidence,” Dr. Gordon, professor at Saint John’s Cancer Institute, Santa Monica, California, said in an interview. “We are just now starting to see results from patients who get their second and even third round of screening.”

“Galleri is recommended to be used annually in addition to USPSTF [US Preventive Services Task Force]–recommended cancer screening tests, like mammography and colonoscopy,” she said.

This recommendation is based on a modeling study suggesting that annual screening would improve stage shift, diagnostic yield, and potentially mortality when compared to biennial screening, although biennial screening was still favorable compared with no screening, she explained.
 

Early Real-World Evidence of Repeat Testing

Among the cohort of 5,794 individuals who received repeat testing, 26 received a positive cancer signal on their second test, yielding a cancer signal detection rate of 0.45% (95% CI: 0.31%-0.66%). The cancer signal detection rate was slightly higher in men. The rate was 0.50% (95% CI: 0.32%-0.81%; 17 of 3367) in men versus 0.37% (95% CI: 0.2%-0.7%; 9 of 2427) in women.

During her presentation, Dr. Gordon highlighted that the repeat testing signal detection rate was lower than the initial 0.95% rate (95% CI: 0.87-1.0; 510 of 53,744) seen in the previous larger cohort of patients who were retested at 1 year.

She acknowledged that the lower cancer signal detection rate of repeat testing may indicate some degree of ‘early adopter’ bias, where those who return for a second test are systematically different from the general screening population. This could suggest that broader population-level screening may yield different results, she continued.
 

Shift Toward Unscreened Cancers

The top cancer types identified in the second round of testing were lymphoid, head and neck, bladder/urothelial, colorectal, and anal cancers. Clinicians were able to confirm clinical outcomes in 12 of 26 cases, in which cancer signals were detected. Of those 12 cases, 8 individuals received a cancer diagnosis and 4 did not have cancer. The remaining 14 of 26 cases in which cancer signals were detected are still under investigation.

“We found a shift away from USPSTF screen-detected cancers, like breast, lung, and prostate, and relative increase in unscreened urinary, head and neck, and lymphoid cancers, with 75% of cancers being those without any screening guidelines,” Dr. Gordon said in an interview.

She added that patients who choose to retest may have different cancer rates for several reasons, including bias toward a population that is health conscious and adhered to all recommended cancer screening.

“So the shift toward unscreened cancers is not unexpected and highlights the value of Galleri,” she said, but also acknowledged that “continued monitoring is needed to see if this translates in a persistent finding over time and tests.”
 

Shift Toward Early-Stage Cancers

Staging information was available for five cases, and Dr. Gordon highlighted in her talk that four of these confirmed cancers were stage I, including cancers of the anus, head and neck, bladder, and lymphoma. The fifth confirmed cancer with staging information was stage IV ovarian cancer.

“It is still early, and the numbers are very small, but the detection of early-stage cancers with second annual testing is very encouraging as these are the cases where MCED testing could have the greatest impact in improving outcomes through earlier treatment,” Dr. Gordon told this publication.

During an interview after the talk, Kenneth L. Kehl, MD, MPH, echoed that data must be confirmed in larger cohorts.

“The shift toward earlier stage cancers that are less detectable by standard screening methods is an interesting result, but we need to be cautious since the numbers were relatively small, and we do not have data on cancers that were diagnosed among patients whose second MCED test was also negative,” said Dr. Kehl, a medical oncologist at Dana-Farber Cancer Institute, Boston.
 

MCED Results Could Help Direct Diagnostic Workup

The test’s ability to predict the organ of origin was highly accurate, correctly identifying the cancer type in all eight confirmed cases. Among the eight cases with a confirmed cancer diagnosis, the accuracy of the first prediction was 100%, and diagnoses included invasive cancers across multiple tissues and organs, including anus, colon, head and neck, urothelial tract, ovary, and the lymphatic system.

“The fact that the site of origin for 100% of confirmed cancers was accurately predicted with GRAIL’s CSO by Galleri test confirms the promise that this can guide workup when a cancer signal is detected,” Dr. Gordon noted in the interview.
 

Looking Ahead

Dr. Kehl, who was not involved in the MCED study, noted in an interview that “further data on test characteristics beyond positive predictive value, including the sensitivity, specificity, and negative predictive value, as well as demonstration of clinical benefit — ideally in a randomized trial — will likely be required for MCED testing to become a standard public health recommendation.”

He added that challenges associated with implementing annual screening with MCED tests include the risks of both false positives and false negatives as testing becomes more widely available.

“False positives cause anxiety and lead to additional testing that may carry its own risks, and we need to understand if potentially false negative tests will be associated with less uptake of established screening strategies,” Dr. Kehl said in an interview. However, he noted that serial testing could lead to more frequent diagnoses of early-stage cancers that may be less detectable by standard methods.

Dr. Gordon reported financial relationships with GRAIL LLC and Genetic Technologies Corporation. Dr. Kehl reported no relationships with entities whose primary business is producing, marketing, selling, reselling, or distributing healthcare products used by or on patients.

It should come as no surprise that when physicians speak out on social and political issues, there is sometimes a backlash. This can range from the typical trolling that occurs online to rarer cases of professional penalties. Two doctors were fired by NYU Langone Health late last year after they posted social media messages about the Israel-Hamas war. Still, many physicians are not only willing to stand up for what they believe in, but they see it as an essential part of their profession. 
"We're now at a place where doctors need to engage in public advocacy as an urgent part of our job," wrote Rob Davidson, MD, an emergency department physician, at the onslaught of the COVID-19 pandemic. In an Op-Ed piece for The Guardian, Dr. Davidson noted how the virus forced many physicians into becoming "activist doctors," calling for adequate personal protective equipment and correcting misinformation. "What we want above all is for the administration to listen to doctors, nurses, and frontline health workers - and stop playing politics," he wrote. 

'It's Not About Being Political' 

The intersection of medicine and politics is hardly new. Doctors frequently testify before Congress, sharing their expertise on issues concerning public health. This, however, isn't the same as "playing politics." 
"I'm not taking political stances," said Megan Ranney, MD, Dean of the Yale School of Public Health. "Rather, I'm using science to inform best practices, and I'm vocal around the area where I have expertise where we could do collectively better." 
Dr. Ranney's work to end firearm injury and death garnered particular attention when she co-authored an open letter to the National Rifle Association (NRA) in 2018. She wrote the letter in response to a tweet by the organization, admonishing physicians to "stay in their lane" when it comes to gun control.  
Dr. Ranney's letter discussed gun violence as a public health crisis and urged the NRA to "be part of the solution" by joining the collective effort to reduce firearm injury and death through research, education, and advocacy. "We are not anti-gun," she stated. "We are anti-bullet hole," adding that "almost half of doctors own guns." 
The NRA disagreed. When Dr. Ranney testified before Congress during a hearing on gun violence in 2023, NRA spokesperson Billy McLaughlin condemned her testimony as an effort to "dismantle the Second Amendment," calling Dr. Ranney "a known gun control extremist." 
"If you actually read what I write, or if you actually listen to what I say, I'm not saying things on behalf of one political party or another," said Dr. Ranney. "It's not about being political. It's about recognizing our role in describing what's happening and making it clear for the world to see. Showing where, based off of data, there may be a better path to improve health and wellbeing." 
In spite of the backlash, Dr. Ranney has no regrets about being an activist. "In the current media landscape, folks love to slap labels on people that may or may not be accurate. To me, what matters isn't where I land with a particular politician or political party, but how the work that I do improves health for populations." 

When the Need to Act Outweighs the Fear 

Laura Andreson, DO, an ob.gyn, took activism a step further when she joined a group of women in Tennessee to file a suit against the state, the attorney general, and the state board of medical examiners. The issue was the Tennessee's abortion ban, which the suit claimed prevented women from getting "necessary and potentially life-saving medical care."  
Dr. Andreson, who says she was "not at all" politically active in the past, began to realize how the abortion ban could drastically affect her profession and her patients. "I don't know what flipped in me, but I just felt like I could do this," she said. 
Like Dr. Ranney, Dr. Andreson has been as visible as she has been vocal, giving press conferences and interviews, but she acknowledges she has some fears about safety. In fact, after filing the lawsuit, the Center for Reproductive Rights recommended that she go to a website, DeleteMe, that removes personal data from the internet, making it more difficult for people to find her information. "But my need to do this and my desire to do this is stronger than my fears," she added. 
Dr. Andreson, who is part of a small practice, did check with both her coworkers and the hospital administration before moving forward with the lawsuit. She was relieved to find that she had the support of her practice and that there wasn't anything in the hospital bylaws to prevent her from filing the lawsuit. "But the people in the bigger institutions who probably have an even better expert base than I do, they are handcuffed," she said. 
It has been, in Dr. Andreson's words, "a little uncomfortable" being on the board of the Tennessee Medical Association when the Tennessee Board of Medical Examiners is part of the lawsuit. "We're all members of the same group," she said. "But I'm not suing them as individuals; I'm suing them as an entity that is under our government." 
Dr. Andreson said most people have been supportive of her activist work, though she admitted to feeling frustrated when she encounters apathy from fellow ob.gyns. She got little response when she circulated information explaining the abortion laws and trying to get others involved. But she still sees education as being a key part of making change happen.  
"I think advocacy, as someone who is considered a responsible, trustworthy person by your community, is important, because you can sway some people just by educating them," she said. 

Fighting Inequities in Medicine and Beyond 

Christina Chen, MD, says she felt very supported by her medical community at the Mayo Clinic in Rochester, Minnesota, when she and 16 other Asian American physicians posted a video on Instagram in 2020 highlighting increased violence and harassment of Asian Americans during COVID-19. It soon went viral, and the Mayo Clinic distributed it across their social media channels. The only negative repercussions Mayo faced were a few posts on social media saying that politics should not be brought into the healthcare space. Dr. Chen disagrees. 
"Social issues and political decisions have direct impact on the health of our communities," Dr. Chen said. "We know that we still have a long way to go to solve health inequities, which is a public health problem, and we all play a huge role in voicing our concerns." 
Activism, however, seems to be more complicated when it involves physicians being critical of inequities within the medical field. Nephrologist, Vanessa Grubbs, MD, MPH, founded the nonprofit Black Doc Village in 2022 to raise awareness about the wrongful dismissal of Black residents and expand the Black physician workforce. 
Dr. Grubbs said that the medical community has not been supportive of her activism. "The reason why I'm no longer in academia is in part because they got very upset with me tweeting about how some trainees are biased in their treatment of attendings," she said. "Senior White men attendings are often treated very differently than junior women of color faculty." 
Dr. Grubbs also expressed her views in 2020 essay in the New England Journal of Medicine where she criticized academic medical institutions for ignoring systemic racism, paying lip service to diversity, equity, and inclusion, and staying "deafeningly silent" when issues of racism are raised. 
Today, Black Doc Village is focused on conducting research that can be used to change policy. And Dr. Grubbs now has the full support of her colleagues at West Oakland Health, in Oakland, California, which aspires to advance the Bay Area Black community's health and dignity. "So, no one here has a problem with me speaking out," she added. 
The emphasis on data-driven activism as opposed to "playing politics," is a recurring theme for many physicians who publicly engage with social issues. 
"It's not partisan," Dr. Ranney said. "Rather, it's a commitment to translating science into actionable steps that can be used regardless of what political party you are in. My job is not to be on one side or the other, but to advance human health." These doctors challenge their critics to explain how such a goal is outside their purview. 
A version of this article first appeared on Medscape.com.

It should come as no surprise that when physicians speak out on social and political issues, there is sometimes a backlash. This can range from the typical trolling that occurs online to rarer cases of professional penalties. Two doctors were fired by NYU Langone Health late last year after they posted social media messages about the Israel-Hamas war. Still, many physicians are not only willing to stand up for what they believe in, but they see it as an essential part of their profession. 
"We're now at a place where doctors need to engage in public advocacy as an urgent part of our job," wrote Rob Davidson, MD, an emergency department physician, at the onslaught of the COVID-19 pandemic. In an Op-Ed piece for The Guardian, Dr. Davidson noted how the virus forced many physicians into becoming "activist doctors," calling for adequate personal protective equipment and correcting misinformation. "What we want above all is for the administration to listen to doctors, nurses, and frontline health workers - and stop playing politics," he wrote. 

'It's Not About Being Political' 

The intersection of medicine and politics is hardly new. Doctors frequently testify before Congress, sharing their expertise on issues concerning public health. This, however, isn't the same as "playing politics." 
"I'm not taking political stances," said Megan Ranney, MD, Dean of the Yale School of Public Health. "Rather, I'm using science to inform best practices, and I'm vocal around the area where I have expertise where we could do collectively better." 
Dr. Ranney's work to end firearm injury and death garnered particular attention when she co-authored an open letter to the National Rifle Association (NRA) in 2018. She wrote the letter in response to a tweet by the organization, admonishing physicians to "stay in their lane" when it comes to gun control.  
Dr. Ranney's letter discussed gun violence as a public health crisis and urged the NRA to "be part of the solution" by joining the collective effort to reduce firearm injury and death through research, education, and advocacy. "We are not anti-gun," she stated. "We are anti-bullet hole," adding that "almost half of doctors own guns." 
The NRA disagreed. When Dr. Ranney testified before Congress during a hearing on gun violence in 2023, NRA spokesperson Billy McLaughlin condemned her testimony as an effort to "dismantle the Second Amendment," calling Dr. Ranney "a known gun control extremist." 
"If you actually read what I write, or if you actually listen to what I say, I'm not saying things on behalf of one political party or another," said Dr. Ranney. "It's not about being political. It's about recognizing our role in describing what's happening and making it clear for the world to see. Showing where, based off of data, there may be a better path to improve health and wellbeing." 
In spite of the backlash, Dr. Ranney has no regrets about being an activist. "In the current media landscape, folks love to slap labels on people that may or may not be accurate. To me, what matters isn't where I land with a particular politician or political party, but how the work that I do improves health for populations." 

When the Need to Act Outweighs the Fear 

Laura Andreson, DO, an ob.gyn, took activism a step further when she joined a group of women in Tennessee to file a suit against the state, the attorney general, and the state board of medical examiners. The issue was the Tennessee's abortion ban, which the suit claimed prevented women from getting "necessary and potentially life-saving medical care."  
Dr. Andreson, who says she was "not at all" politically active in the past, began to realize how the abortion ban could drastically affect her profession and her patients. "I don't know what flipped in me, but I just felt like I could do this," she said. 
Like Dr. Ranney, Dr. Andreson has been as visible as she has been vocal, giving press conferences and interviews, but she acknowledges she has some fears about safety. In fact, after filing the lawsuit, the Center for Reproductive Rights recommended that she go to a website, DeleteMe, that removes personal data from the internet, making it more difficult for people to find her information. "But my need to do this and my desire to do this is stronger than my fears," she added. 
Dr. Andreson, who is part of a small practice, did check with both her coworkers and the hospital administration before moving forward with the lawsuit. She was relieved to find that she had the support of her practice and that there wasn't anything in the hospital bylaws to prevent her from filing the lawsuit. "But the people in the bigger institutions who probably have an even better expert base than I do, they are handcuffed," she said. 
It has been, in Dr. Andreson's words, "a little uncomfortable" being on the board of the Tennessee Medical Association when the Tennessee Board of Medical Examiners is part of the lawsuit. "We're all members of the same group," she said. "But I'm not suing them as individuals; I'm suing them as an entity that is under our government." 
Dr. Andreson said most people have been supportive of her activist work, though she admitted to feeling frustrated when she encounters apathy from fellow ob.gyns. She got little response when she circulated information explaining the abortion laws and trying to get others involved. But she still sees education as being a key part of making change happen.  
"I think advocacy, as someone who is considered a responsible, trustworthy person by your community, is important, because you can sway some people just by educating them," she said. 

Fighting Inequities in Medicine and Beyond 

Christina Chen, MD, says she felt very supported by her medical community at the Mayo Clinic in Rochester, Minnesota, when she and 16 other Asian American physicians posted a video on Instagram in 2020 highlighting increased violence and harassment of Asian Americans during COVID-19. It soon went viral, and the Mayo Clinic distributed it across their social media channels. The only negative repercussions Mayo faced were a few posts on social media saying that politics should not be brought into the healthcare space. Dr. Chen disagrees. 
"Social issues and political decisions have direct impact on the health of our communities," Dr. Chen said. "We know that we still have a long way to go to solve health inequities, which is a public health problem, and we all play a huge role in voicing our concerns." 
Activism, however, seems to be more complicated when it involves physicians being critical of inequities within the medical field. Nephrologist, Vanessa Grubbs, MD, MPH, founded the nonprofit Black Doc Village in 2022 to raise awareness about the wrongful dismissal of Black residents and expand the Black physician workforce. 
Dr. Grubbs said that the medical community has not been supportive of her activism. "The reason why I'm no longer in academia is in part because they got very upset with me tweeting about how some trainees are biased in their treatment of attendings," she said. "Senior White men attendings are often treated very differently than junior women of color faculty." 
Dr. Grubbs also expressed her views in 2020 essay in the New England Journal of Medicine where she criticized academic medical institutions for ignoring systemic racism, paying lip service to diversity, equity, and inclusion, and staying "deafeningly silent" when issues of racism are raised. 
Today, Black Doc Village is focused on conducting research that can be used to change policy. And Dr. Grubbs now has the full support of her colleagues at West Oakland Health, in Oakland, California, which aspires to advance the Bay Area Black community's health and dignity. "So, no one here has a problem with me speaking out," she added. 
The emphasis on data-driven activism as opposed to "playing politics," is a recurring theme for many physicians who publicly engage with social issues. 
"It's not partisan," Dr. Ranney said. "Rather, it's a commitment to translating science into actionable steps that can be used regardless of what political party you are in. My job is not to be on one side or the other, but to advance human health." These doctors challenge their critics to explain how such a goal is outside their purview. 
A version of this article first appeared on Medscape.com.

It should come as no surprise that when physicians speak out on social and political issues, there is sometimes a backlash. This can range from the typical trolling that occurs online to rarer cases of professional penalties. Two doctors were fired by NYU Langone Health late last year after they posted social media messages about the Israel-Hamas war. Still, many physicians are not only willing to stand up for what they believe in, but they see it as an essential part of their profession. 
"We're now at a place where doctors need to engage in public advocacy as an urgent part of our job," wrote Rob Davidson, MD, an emergency department physician, at the onslaught of the COVID-19 pandemic. In an Op-Ed piece for The Guardian, Dr. Davidson noted how the virus forced many physicians into becoming "activist doctors," calling for adequate personal protective equipment and correcting misinformation. "What we want above all is for the administration to listen to doctors, nurses, and frontline health workers - and stop playing politics," he wrote. 

'It's Not About Being Political' 

The intersection of medicine and politics is hardly new. Doctors frequently testify before Congress, sharing their expertise on issues concerning public health. This, however, isn't the same as "playing politics." 
"I'm not taking political stances," said Megan Ranney, MD, Dean of the Yale School of Public Health. "Rather, I'm using science to inform best practices, and I'm vocal around the area where I have expertise where we could do collectively better." 
Dr. Ranney's work to end firearm injury and death garnered particular attention when she co-authored an open letter to the National Rifle Association (NRA) in 2018. She wrote the letter in response to a tweet by the organization, admonishing physicians to "stay in their lane" when it comes to gun control.  
Dr. Ranney's letter discussed gun violence as a public health crisis and urged the NRA to "be part of the solution" by joining the collective effort to reduce firearm injury and death through research, education, and advocacy. "We are not anti-gun," she stated. "We are anti-bullet hole," adding that "almost half of doctors own guns." 
The NRA disagreed. When Dr. Ranney testified before Congress during a hearing on gun violence in 2023, NRA spokesperson Billy McLaughlin condemned her testimony as an effort to "dismantle the Second Amendment," calling Dr. Ranney "a known gun control extremist." 
"If you actually read what I write, or if you actually listen to what I say, I'm not saying things on behalf of one political party or another," said Dr. Ranney. "It's not about being political. It's about recognizing our role in describing what's happening and making it clear for the world to see. Showing where, based off of data, there may be a better path to improve health and wellbeing." 
In spite of the backlash, Dr. Ranney has no regrets about being an activist. "In the current media landscape, folks love to slap labels on people that may or may not be accurate. To me, what matters isn't where I land with a particular politician or political party, but how the work that I do improves health for populations." 

When the Need to Act Outweighs the Fear 

Laura Andreson, DO, an ob.gyn, took activism a step further when she joined a group of women in Tennessee to file a suit against the state, the attorney general, and the state board of medical examiners. The issue was the Tennessee's abortion ban, which the suit claimed prevented women from getting "necessary and potentially life-saving medical care."  
Dr. Andreson, who says she was "not at all" politically active in the past, began to realize how the abortion ban could drastically affect her profession and her patients. "I don't know what flipped in me, but I just felt like I could do this," she said. 
Like Dr. Ranney, Dr. Andreson has been as visible as she has been vocal, giving press conferences and interviews, but she acknowledges she has some fears about safety. In fact, after filing the lawsuit, the Center for Reproductive Rights recommended that she go to a website, DeleteMe, that removes personal data from the internet, making it more difficult for people to find her information. "But my need to do this and my desire to do this is stronger than my fears," she added. 
Dr. Andreson, who is part of a small practice, did check with both her coworkers and the hospital administration before moving forward with the lawsuit. She was relieved to find that she had the support of her practice and that there wasn't anything in the hospital bylaws to prevent her from filing the lawsuit. "But the people in the bigger institutions who probably have an even better expert base than I do, they are handcuffed," she said. 
It has been, in Dr. Andreson's words, "a little uncomfortable" being on the board of the Tennessee Medical Association when the Tennessee Board of Medical Examiners is part of the lawsuit. "We're all members of the same group," she said. "But I'm not suing them as individuals; I'm suing them as an entity that is under our government." 
Dr. Andreson said most people have been supportive of her activist work, though she admitted to feeling frustrated when she encounters apathy from fellow ob.gyns. She got little response when she circulated information explaining the abortion laws and trying to get others involved. But she still sees education as being a key part of making change happen.  
"I think advocacy, as someone who is considered a responsible, trustworthy person by your community, is important, because you can sway some people just by educating them," she said. 

Fighting Inequities in Medicine and Beyond 

Christina Chen, MD, says she felt very supported by her medical community at the Mayo Clinic in Rochester, Minnesota, when she and 16 other Asian American physicians posted a video on Instagram in 2020 highlighting increased violence and harassment of Asian Americans during COVID-19. It soon went viral, and the Mayo Clinic distributed it across their social media channels. The only negative repercussions Mayo faced were a few posts on social media saying that politics should not be brought into the healthcare space. Dr. Chen disagrees. 
"Social issues and political decisions have direct impact on the health of our communities," Dr. Chen said. "We know that we still have a long way to go to solve health inequities, which is a public health problem, and we all play a huge role in voicing our concerns." 
Activism, however, seems to be more complicated when it involves physicians being critical of inequities within the medical field. Nephrologist, Vanessa Grubbs, MD, MPH, founded the nonprofit Black Doc Village in 2022 to raise awareness about the wrongful dismissal of Black residents and expand the Black physician workforce. 
Dr. Grubbs said that the medical community has not been supportive of her activism. "The reason why I'm no longer in academia is in part because they got very upset with me tweeting about how some trainees are biased in their treatment of attendings," she said. "Senior White men attendings are often treated very differently than junior women of color faculty." 
Dr. Grubbs also expressed her views in 2020 essay in the New England Journal of Medicine where she criticized academic medical institutions for ignoring systemic racism, paying lip service to diversity, equity, and inclusion, and staying "deafeningly silent" when issues of racism are raised. 
Today, Black Doc Village is focused on conducting research that can be used to change policy. And Dr. Grubbs now has the full support of her colleagues at West Oakland Health, in Oakland, California, which aspires to advance the Bay Area Black community's health and dignity. "So, no one here has a problem with me speaking out," she added. 
The emphasis on data-driven activism as opposed to "playing politics," is a recurring theme for many physicians who publicly engage with social issues. 
"It's not partisan," Dr. Ranney said. "Rather, it's a commitment to translating science into actionable steps that can be used regardless of what political party you are in. My job is not to be on one side or the other, but to advance human health." These doctors challenge their critics to explain how such a goal is outside their purview. 
A version of this article first appeared on Medscape.com.

SAN DIEGO — Fewer than half of the cancer drugs approved under the US Food and Drug Administration’s (FDA’s) accelerated approval pathway between 2013 and 2017 have been shown to improve overall survival or quality of life, despite being on the US market for more than 5 years, according to a new study. 

Under the program, drugs are approved for marketing if they show benefit in surrogate markers thought to indicate efficacy. Progression-free survival, tumor response, and duration of response are the most used surrogate markers for accelerated approvals of cancer drugs. These are based largely on imaging studies that show either a stop in growth in the case of progression-free survival or tumor shrinkage in the case of tumor response. 

Following accelerated approvals, companies are then supposed to show actual clinical benefit in confirmatory trials.

The problem with relying on surrogate markers for drug approvals is that they don’t always correlate with longer survival or improved quality of life, said Edward Cliff, MBBS, who presented the findings at the American Association for Cancer Research 2024 annual meeting (abstract 918). The study was also published in JAMA to coincide with the meeting presentation.

In some cancers, these markers work well, but in others they don’t, said Dr. Cliff, a hematology trainee at Brigham and Women’s Hospital, Boston, when the work was conducted, and now a hematology fellow at the Peter MacCallum Cancer Centre in Melbourne, Australia.

To determine whether cancer drugs granted accelerated approval ultimately show an overall survival or quality of life benefit, researchers reviewed 46 cancer drugs granted accelerated approvals between 2013 and 2017. Twenty (43%) were granted full approval after demonstrating survival or quality-of-life benefits. 

Nine, however, were converted to full approvals on the basis of surrogate markers. These include a full approval for pembrolizumab in previously treated recurrent or refractory head and neck squamous cell carcinoma and a full approval for nivolumab for refractory locally advanced or metastatic urothelial carcinoma, both based on tumor response rate and duration of response.

Of the remaining 17 drugs evaluated in the trial, 10 have been withdrawn and seven do not yet have confirmatory trial results. 

The reliance on surrogate markers means that these drugs are used for treatment, covered by insurance, and added to guidelines — all without solid evidence of real-world clinical benefit, said Dr. Cliff. 

However, the goal should not be to do away with the accelerated approval process, because it sometimes does deliver powerful agents to patients quickly. Instead, Dr. Cliff told this news organization, the system needs to be improved so that “we keep the speed while getting certainty around clinical benefits” with robust and timely confirmatory trials. 

In the meantime, “clinicians should communicate with patients about any residual uncertainty of clinical benefit when they offer novel therapies,” Dr. Cliff explained. “It’s important for them to have the information.”

There has been some progress on the issue. In December 2022, the US Congress passed the Food and Drug Administration Omnibus Reform Act. Among other things, the Act requires companies to have confirmation trials underway as a condition for accelerated approval, and to provide regular reports on their progress. The Act also expedites the withdrawal process for drugs that don’t show a benefit. 

The Act has been put to the test twice recently. In February, FDA used the expedited process to remove the multiple myeloma drug melphalan flufenamide from the market. Melphalan flufenamide hadn’t been sold in the US for quite some time, so the process wasn’t contentious. 

In March, Regeneron announced that accelerated approval for the follicular and diffuse B cell lymphoma drug odronextamab has been delayed pending enrollment in a confirmatory trial. 

“There have been some promising steps,” Dr. Cliff said, but much work needs to be done. 

Study moderator Shivaani Kummar, MD, agreed, noting that “the data is showing that the confirmatory trials aren’t happening at the pace which they should.” 

But the solution is not to curtail approvals; it’s to make sure that accelerated approval commitments are met, said Dr. Kummar.

Still, “as a practicing oncologist, I welcome the accelerated pathway,” Dr. Kummar, a medical oncologist/hematologist at Oregon Health & Science University, Portland, told this news organization. “I want the availability to my patients.” 

Having drugs approved on the basis of surrogate markers doesn’t necessarily mean patients are getting ineffective therapies, Dr. Kummar noted. For instance, if an agent just shrinks the tumor, it can sometimes still be “a huge clinical benefit because it can take the symptoms away.” 

As for prescribing drugs based on accelerated approvals, she said she tells her patients that trials have been promising, but we don’t know what the long-term effects are. She and her patient then make a decision together. 

The study was funded by Arnold Ventures. Dr. Kummar reported support from several companies, including Bayer, Gilead, and others. Dr. Cliff had no disclosures. 
 

A version of this article appeared on Medscape.com.

SAN DIEGO — Fewer than half of the cancer drugs approved under the US Food and Drug Administration’s (FDA’s) accelerated approval pathway between 2013 and 2017 have been shown to improve overall survival or quality of life, despite being on the US market for more than 5 years, according to a new study. 

Under the program, drugs are approved for marketing if they show benefit in surrogate markers thought to indicate efficacy. Progression-free survival, tumor response, and duration of response are the most used surrogate markers for accelerated approvals of cancer drugs. These are based largely on imaging studies that show either a stop in growth in the case of progression-free survival or tumor shrinkage in the case of tumor response. 

Following accelerated approvals, companies are then supposed to show actual clinical benefit in confirmatory trials.

The problem with relying on surrogate markers for drug approvals is that they don’t always correlate with longer survival or improved quality of life, said Edward Cliff, MBBS, who presented the findings at the American Association for Cancer Research 2024 annual meeting (abstract 918). The study was also published in JAMA to coincide with the meeting presentation.

In some cancers, these markers work well, but in others they don’t, said Dr. Cliff, a hematology trainee at Brigham and Women’s Hospital, Boston, when the work was conducted, and now a hematology fellow at the Peter MacCallum Cancer Centre in Melbourne, Australia.

To determine whether cancer drugs granted accelerated approval ultimately show an overall survival or quality of life benefit, researchers reviewed 46 cancer drugs granted accelerated approvals between 2013 and 2017. Twenty (43%) were granted full approval after demonstrating survival or quality-of-life benefits. 

Nine, however, were converted to full approvals on the basis of surrogate markers. These include a full approval for pembrolizumab in previously treated recurrent or refractory head and neck squamous cell carcinoma and a full approval for nivolumab for refractory locally advanced or metastatic urothelial carcinoma, both based on tumor response rate and duration of response.

Of the remaining 17 drugs evaluated in the trial, 10 have been withdrawn and seven do not yet have confirmatory trial results. 

The reliance on surrogate markers means that these drugs are used for treatment, covered by insurance, and added to guidelines — all without solid evidence of real-world clinical benefit, said Dr. Cliff. 

However, the goal should not be to do away with the accelerated approval process, because it sometimes does deliver powerful agents to patients quickly. Instead, Dr. Cliff told this news organization, the system needs to be improved so that “we keep the speed while getting certainty around clinical benefits” with robust and timely confirmatory trials. 

In the meantime, “clinicians should communicate with patients about any residual uncertainty of clinical benefit when they offer novel therapies,” Dr. Cliff explained. “It’s important for them to have the information.”

There has been some progress on the issue. In December 2022, the US Congress passed the Food and Drug Administration Omnibus Reform Act. Among other things, the Act requires companies to have confirmation trials underway as a condition for accelerated approval, and to provide regular reports on their progress. The Act also expedites the withdrawal process for drugs that don’t show a benefit. 

The Act has been put to the test twice recently. In February, FDA used the expedited process to remove the multiple myeloma drug melphalan flufenamide from the market. Melphalan flufenamide hadn’t been sold in the US for quite some time, so the process wasn’t contentious. 

In March, Regeneron announced that accelerated approval for the follicular and diffuse B cell lymphoma drug odronextamab has been delayed pending enrollment in a confirmatory trial. 

“There have been some promising steps,” Dr. Cliff said, but much work needs to be done. 

Study moderator Shivaani Kummar, MD, agreed, noting that “the data is showing that the confirmatory trials aren’t happening at the pace which they should.” 

But the solution is not to curtail approvals; it’s to make sure that accelerated approval commitments are met, said Dr. Kummar.

Still, “as a practicing oncologist, I welcome the accelerated pathway,” Dr. Kummar, a medical oncologist/hematologist at Oregon Health & Science University, Portland, told this news organization. “I want the availability to my patients.” 

Having drugs approved on the basis of surrogate markers doesn’t necessarily mean patients are getting ineffective therapies, Dr. Kummar noted. For instance, if an agent just shrinks the tumor, it can sometimes still be “a huge clinical benefit because it can take the symptoms away.” 

As for prescribing drugs based on accelerated approvals, she said she tells her patients that trials have been promising, but we don’t know what the long-term effects are. She and her patient then make a decision together. 

The study was funded by Arnold Ventures. Dr. Kummar reported support from several companies, including Bayer, Gilead, and others. Dr. Cliff had no disclosures. 
 

A version of this article appeared on Medscape.com.

SAN DIEGO — Fewer than half of the cancer drugs approved under the US Food and Drug Administration’s (FDA’s) accelerated approval pathway between 2013 and 2017 have been shown to improve overall survival or quality of life, despite being on the US market for more than 5 years, according to a new study. 

Under the program, drugs are approved for marketing if they show benefit in surrogate markers thought to indicate efficacy. Progression-free survival, tumor response, and duration of response are the most used surrogate markers for accelerated approvals of cancer drugs. These are based largely on imaging studies that show either a stop in growth in the case of progression-free survival or tumor shrinkage in the case of tumor response. 

Following accelerated approvals, companies are then supposed to show actual clinical benefit in confirmatory trials.

The problem with relying on surrogate markers for drug approvals is that they don’t always correlate with longer survival or improved quality of life, said Edward Cliff, MBBS, who presented the findings at the American Association for Cancer Research 2024 annual meeting (abstract 918). The study was also published in JAMA to coincide with the meeting presentation.

In some cancers, these markers work well, but in others they don’t, said Dr. Cliff, a hematology trainee at Brigham and Women’s Hospital, Boston, when the work was conducted, and now a hematology fellow at the Peter MacCallum Cancer Centre in Melbourne, Australia.

To determine whether cancer drugs granted accelerated approval ultimately show an overall survival or quality of life benefit, researchers reviewed 46 cancer drugs granted accelerated approvals between 2013 and 2017. Twenty (43%) were granted full approval after demonstrating survival or quality-of-life benefits. 

Nine, however, were converted to full approvals on the basis of surrogate markers. These include a full approval for pembrolizumab in previously treated recurrent or refractory head and neck squamous cell carcinoma and a full approval for nivolumab for refractory locally advanced or metastatic urothelial carcinoma, both based on tumor response rate and duration of response.

Of the remaining 17 drugs evaluated in the trial, 10 have been withdrawn and seven do not yet have confirmatory trial results. 

The reliance on surrogate markers means that these drugs are used for treatment, covered by insurance, and added to guidelines — all without solid evidence of real-world clinical benefit, said Dr. Cliff. 

However, the goal should not be to do away with the accelerated approval process, because it sometimes does deliver powerful agents to patients quickly. Instead, Dr. Cliff told this news organization, the system needs to be improved so that “we keep the speed while getting certainty around clinical benefits” with robust and timely confirmatory trials. 

In the meantime, “clinicians should communicate with patients about any residual uncertainty of clinical benefit when they offer novel therapies,” Dr. Cliff explained. “It’s important for them to have the information.”

There has been some progress on the issue. In December 2022, the US Congress passed the Food and Drug Administration Omnibus Reform Act. Among other things, the Act requires companies to have confirmation trials underway as a condition for accelerated approval, and to provide regular reports on their progress. The Act also expedites the withdrawal process for drugs that don’t show a benefit. 

The Act has been put to the test twice recently. In February, FDA used the expedited process to remove the multiple myeloma drug melphalan flufenamide from the market. Melphalan flufenamide hadn’t been sold in the US for quite some time, so the process wasn’t contentious. 

In March, Regeneron announced that accelerated approval for the follicular and diffuse B cell lymphoma drug odronextamab has been delayed pending enrollment in a confirmatory trial. 

“There have been some promising steps,” Dr. Cliff said, but much work needs to be done. 

Study moderator Shivaani Kummar, MD, agreed, noting that “the data is showing that the confirmatory trials aren’t happening at the pace which they should.” 

But the solution is not to curtail approvals; it’s to make sure that accelerated approval commitments are met, said Dr. Kummar.

Still, “as a practicing oncologist, I welcome the accelerated pathway,” Dr. Kummar, a medical oncologist/hematologist at Oregon Health & Science University, Portland, told this news organization. “I want the availability to my patients.” 

Having drugs approved on the basis of surrogate markers doesn’t necessarily mean patients are getting ineffective therapies, Dr. Kummar noted. For instance, if an agent just shrinks the tumor, it can sometimes still be “a huge clinical benefit because it can take the symptoms away.” 

As for prescribing drugs based on accelerated approvals, she said she tells her patients that trials have been promising, but we don’t know what the long-term effects are. She and her patient then make a decision together. 

The study was funded by Arnold Ventures. Dr. Kummar reported support from several companies, including Bayer, Gilead, and others. Dr. Cliff had no disclosures. 
 

A version of this article appeared on Medscape.com.

A lightbulb moment hit as Lawrence David was chatting one day with an ecologist who studies the microbiomes and diets of large herbivores in the African savanna. David was envious. He’d been studying the human microbiome, and this ecologist had tons of animal statistics that were way more specific than what David had obtained from people.

“How on earth do you get all these dietary data?” David recalled asking. “Obviously, he didn’t ask the animals what they ate.”

All those specific statistics came from DNA sequencing of animal scat scooped up from the savanna. 

Indeed. 

Depending on when you read this, you may have the DNA of more than a dozen plant species, plus another three or four animal species, gurgling through your gut. That’s the straight poop taken straight from, well, poop.

David and colleagues are analyzing the DNA in human feces to better understand digestion and the links between diet and health, potentially paving the way to treatments for diet-linked diseases.

Diet, DNA, and Feces

Everything we eat (except vitamins, minerals, and salt) came from something that was living, and all living things have genomes. 

“A decent fraction of that DNA” goes undigested and is then excreted, said David, a PhD and associate professor of molecular genetics and microbiology at Duke University, Durham, North Carolina. 

“We are using DNA sequencing to reconstruct what people eat,” David said. “We try to see if there are patterns in what people eat and how we can measure them by DNA, or kind of genetic forensics.” Then they connect that data to health outcomes like obesity. 

A typical person’s excrement probably contains the DNA of 10-20 plant species and three or four types of animal DNA. “And that’s the average person. Some people may have more like 40 types at any given time,” David said. 

Studying DNA in human feces has potential applications in research and in clinical settings. For instance, it could help design personalized nutrition strategies for patients, something that’s already being tested. He hopes that DNA information will help “connect patterns in what people eat to their microbiomes.” 

One big advantage: Feces don’t lie. In reconstructing someone’s diet, people either forget what they ate, fudge the truth, or can’t be bothered to keep track. 

“Patients report the fruit they ate yesterday but not the M&Ms,” said Neil Stollman, MD, chief of the division of gastroenterology at Alta Bates Summit Medical Center in Oakland, California. 

Some people can’t write it all down because they’re too old or too young — the very people at highest risk of nutrition-associated disease, said David. 

Fetching and Figuring Out Feces

It’s a lot of work to collect and analyze fecal matter, for ethical, legal, and logistical reasons. “And then there’s sort of an ick factor to this kind of work,” David said. 

To get samples, people place a plastic collection cup under the toilet seat to catch the stool. The person then swabs or scoops some of that into a tube, seals the top, and either brings it in or mails it to the lab. 

In the lab, David said, “if the DNA is still inside the plant cells, we crack the cells open using a variety of methods. We use what’s called ‘a stomacher,’ which is like two big paddles, and we load the poop [which is in a plastic bag] into it and then squash it — mash it up. We also sometimes load small particles of what is basically glass into it and then shake really hard — it is another way you can physically break open the plant cells. This can also be done with chemicals. It’s like a chemistry lab,” he said, noting that this process takes about half a day to do.

There is much more bacterial DNA in stool than there is food DNA, and even a little human DNA and sometimes fungi, said David. “The concentration of bacteria in stool is amongst the highest concentrations of bacteria on the planet,” he said, but his lab focuses on the plant DNA they find. 

They use a molecular process called polymerase chain reaction (PCR) that amplifies and selectively copies DNA from plants. (The scientists who invented this “ingenious” process won a Nobel Prize, David noted.) Like a COVID PCR test, the process only matches up for certain kinds of DNA and can be designed to be more specific or less specific. In David’s lab, they shoot for a middle ground of specificity, where the PCR process is targeting chloroplasts in plants. 

Once they’ve detected all the different sequences of food species, they need to find the DNA code, a time-consuming step. His colleague Briana Petrone compiled a reference database of specific sequences of DNA that correspond to different species of plants. This work took more than a year, said David, noting that only a handful of other labs around the country are sequencing DNA in feces, most of them looking at it in animals, not humans. 

There are 200,000 to 300,000 species of edible plants estimated to be on the planet, he said. “I think historically, humans have eaten about 7000 of them. We’re kind of like a walking repository of all this genetic material.” 

What Scientists Learn from Fecal DNA

Tracking DNA in digested food can provide valuable data to researchers — information that could have a major impact on nutritional guidance for people with obesity and digestive diseases and other gastrointestinal and nutrition-related issues. 

David and Petrone’s 2023 study analyzing DNA in stool samples, published in the Proceedings of the National Academy of Sciences (PNAS), showed what — and roughly how much — people ate. 

They noticed that kids with obesity had a higher diversity of plants in them than kids without obesity. Sounds backward — wouldn’t a child who eats more plants be a healthier weight? “The more I dug into it, it turns out that foods that are more processed often tend to have more ingredients. So, a Big Mac and fries and a coffee have 19 different plant species,” said David. 

Going forward, he said, researchers may have to be “more specific about how we think about dietary diversity. Maybe not all plant species count toward health in the same way.” 

David’s work provides an innovative way to conduct nutrition research, said Jotham Suez, PhD, an assistant professor in the department of molecular microbiology and immunology at Johns Hopkins Bloomberg School of Public Health. 

“We need to have some means of tracking what people actually ate during a study, whether it’s an intervention where we provide them with the food or an observational study where we let people eat their habitual diet and track it themselves,” said Suez, who studies the gut microbiome. 

“Recall bias” makes food questionnaires and apps unreliable. And research suggests that some participants may underreport food intake, possibly because they don’t want to be judged or they misestimate how much they actually consumed. 

“There’s huge promise” with a tool like the one described in the PNAS study for making connections between diet and disease, Suez said. But access may be an issue for many researchers. He expects techniques to improve and costs to go down, but there will be challenges. “This method is also almost exclusively looking at plant DNA material, Suez added, “and our diets contain multiple components that are not plants.” 

And even if a person just eats an apple or a single cucumber, that food may be degraded somewhere else in the gut, and it may be digested differently in different people’s guts. “Metabolism, of course, can be different between people,” Suez said, so the amounts of data will vary. “In their study, the qualitative data is convincing. The quantitative is TBD [to be determined].” 

But he said it might be “a perfect tool” for scientists who want to study indigestible fiber, which is an important area of science, too. 

“I totally buy it as a potentially better way to do dietary analytics for disease associations,” said Stollman, an expert in fecal transplant and diverticulitis and a trustee of the American College of Gastroenterology. Stollman sees many patients with diverticular disease who could benefit. 

“One of the core questions in the diverticular world is, what causes diverticular disease, so we can ideally prevent it? For decades, the theory has been that a low fiber diet contributes to it,” said Stollman, but testing DNA in patients’ stools could help researchers explore the question in a new and potentially more nuanced and accurate way. Findings might allow scientists to learn, “Do people who eat X get polyps? Is this diet a risk factor for X, Y, or Z disease?” said Stollman. 

Future Clinical Applications

Brenda Davy, PhD, is a registered dietitian and professor in the Department of Human Nutrition, Foods, and Exercise at Virginia Tech. She conducts research investigating the role of diet in the prevention and treatment of obesity and related conditions such as type 2 diabetes. She also develops dietary assessment methods. More than a decade ago, she developed one of the first rapid assessment tools for quantifying beverage intake — the Beverage Intake Questionnaire — an assessment that is still used today. 

“Dietary assessment is necessary in both research and clinical settings,” Davy said. “If a physician diagnoses a patient with a certain condition, information about the patient’s usual dietary habits can help him or her prescribe dietary changes that may help treat that condition.” 

Biospecimens, like fecal and urine samples, can be a safe, accurate way to collect that data, she said. Samples can be obtained easily and noninvasively “in a wide variety of populations such as children or older adults” and in clinical settings. 

Davy and her team use David’s technology in their work — in particular, a tool called FoodSeq that applies DNA metabarcoding to human stool to collect information about food taxa consumed. Their two labs are now collaborating on a project investigating how ultraprocessed foods might impact type 2 diabetes risk and cardiovascular health. 

There are many directions David’s lab would like to take their research, possibly partnering with epidemiologists on global studies that would help them expand their DNA database and better understand how, for example, climate change may be affecting diet diversity and to learn more about diet across different populations.

A version of this article appeared on Medscape.com.

A lightbulb moment hit as Lawrence David was chatting one day with an ecologist who studies the microbiomes and diets of large herbivores in the African savanna. David was envious. He’d been studying the human microbiome, and this ecologist had tons of animal statistics that were way more specific than what David had obtained from people.

“How on earth do you get all these dietary data?” David recalled asking. “Obviously, he didn’t ask the animals what they ate.”

All those specific statistics came from DNA sequencing of animal scat scooped up from the savanna. 

Indeed. 

Depending on when you read this, you may have the DNA of more than a dozen plant species, plus another three or four animal species, gurgling through your gut. That’s the straight poop taken straight from, well, poop.

David and colleagues are analyzing the DNA in human feces to better understand digestion and the links between diet and health, potentially paving the way to treatments for diet-linked diseases.

Diet, DNA, and Feces

Everything we eat (except vitamins, minerals, and salt) came from something that was living, and all living things have genomes. 

“A decent fraction of that DNA” goes undigested and is then excreted, said David, a PhD and associate professor of molecular genetics and microbiology at Duke University, Durham, North Carolina. 

“We are using DNA sequencing to reconstruct what people eat,” David said. “We try to see if there are patterns in what people eat and how we can measure them by DNA, or kind of genetic forensics.” Then they connect that data to health outcomes like obesity. 

A typical person’s excrement probably contains the DNA of 10-20 plant species and three or four types of animal DNA. “And that’s the average person. Some people may have more like 40 types at any given time,” David said. 

Studying DNA in human feces has potential applications in research and in clinical settings. For instance, it could help design personalized nutrition strategies for patients, something that’s already being tested. He hopes that DNA information will help “connect patterns in what people eat to their microbiomes.” 

One big advantage: Feces don’t lie. In reconstructing someone’s diet, people either forget what they ate, fudge the truth, or can’t be bothered to keep track. 

“Patients report the fruit they ate yesterday but not the M&Ms,” said Neil Stollman, MD, chief of the division of gastroenterology at Alta Bates Summit Medical Center in Oakland, California. 

Some people can’t write it all down because they’re too old or too young — the very people at highest risk of nutrition-associated disease, said David. 

Fetching and Figuring Out Feces

It’s a lot of work to collect and analyze fecal matter, for ethical, legal, and logistical reasons. “And then there’s sort of an ick factor to this kind of work,” David said. 

To get samples, people place a plastic collection cup under the toilet seat to catch the stool. The person then swabs or scoops some of that into a tube, seals the top, and either brings it in or mails it to the lab. 

In the lab, David said, “if the DNA is still inside the plant cells, we crack the cells open using a variety of methods. We use what’s called ‘a stomacher,’ which is like two big paddles, and we load the poop [which is in a plastic bag] into it and then squash it — mash it up. We also sometimes load small particles of what is basically glass into it and then shake really hard — it is another way you can physically break open the plant cells. This can also be done with chemicals. It’s like a chemistry lab,” he said, noting that this process takes about half a day to do.

There is much more bacterial DNA in stool than there is food DNA, and even a little human DNA and sometimes fungi, said David. “The concentration of bacteria in stool is amongst the highest concentrations of bacteria on the planet,” he said, but his lab focuses on the plant DNA they find. 

They use a molecular process called polymerase chain reaction (PCR) that amplifies and selectively copies DNA from plants. (The scientists who invented this “ingenious” process won a Nobel Prize, David noted.) Like a COVID PCR test, the process only matches up for certain kinds of DNA and can be designed to be more specific or less specific. In David’s lab, they shoot for a middle ground of specificity, where the PCR process is targeting chloroplasts in plants. 

Once they’ve detected all the different sequences of food species, they need to find the DNA code, a time-consuming step. His colleague Briana Petrone compiled a reference database of specific sequences of DNA that correspond to different species of plants. This work took more than a year, said David, noting that only a handful of other labs around the country are sequencing DNA in feces, most of them looking at it in animals, not humans. 

There are 200,000 to 300,000 species of edible plants estimated to be on the planet, he said. “I think historically, humans have eaten about 7000 of them. We’re kind of like a walking repository of all this genetic material.” 

What Scientists Learn from Fecal DNA

Tracking DNA in digested food can provide valuable data to researchers — information that could have a major impact on nutritional guidance for people with obesity and digestive diseases and other gastrointestinal and nutrition-related issues. 

David and Petrone’s 2023 study analyzing DNA in stool samples, published in the Proceedings of the National Academy of Sciences (PNAS), showed what — and roughly how much — people ate. 

They noticed that kids with obesity had a higher diversity of plants in them than kids without obesity. Sounds backward — wouldn’t a child who eats more plants be a healthier weight? “The more I dug into it, it turns out that foods that are more processed often tend to have more ingredients. So, a Big Mac and fries and a coffee have 19 different plant species,” said David. 

Going forward, he said, researchers may have to be “more specific about how we think about dietary diversity. Maybe not all plant species count toward health in the same way.” 

David’s work provides an innovative way to conduct nutrition research, said Jotham Suez, PhD, an assistant professor in the department of molecular microbiology and immunology at Johns Hopkins Bloomberg School of Public Health. 

“We need to have some means of tracking what people actually ate during a study, whether it’s an intervention where we provide them with the food or an observational study where we let people eat their habitual diet and track it themselves,” said Suez, who studies the gut microbiome. 

“Recall bias” makes food questionnaires and apps unreliable. And research suggests that some participants may underreport food intake, possibly because they don’t want to be judged or they misestimate how much they actually consumed. 

“There’s huge promise” with a tool like the one described in the PNAS study for making connections between diet and disease, Suez said. But access may be an issue for many researchers. He expects techniques to improve and costs to go down, but there will be challenges. “This method is also almost exclusively looking at plant DNA material, Suez added, “and our diets contain multiple components that are not plants.” 

And even if a person just eats an apple or a single cucumber, that food may be degraded somewhere else in the gut, and it may be digested differently in different people’s guts. “Metabolism, of course, can be different between people,” Suez said, so the amounts of data will vary. “In their study, the qualitative data is convincing. The quantitative is TBD [to be determined].” 

But he said it might be “a perfect tool” for scientists who want to study indigestible fiber, which is an important area of science, too. 

“I totally buy it as a potentially better way to do dietary analytics for disease associations,” said Stollman, an expert in fecal transplant and diverticulitis and a trustee of the American College of Gastroenterology. Stollman sees many patients with diverticular disease who could benefit. 

“One of the core questions in the diverticular world is, what causes diverticular disease, so we can ideally prevent it? For decades, the theory has been that a low fiber diet contributes to it,” said Stollman, but testing DNA in patients’ stools could help researchers explore the question in a new and potentially more nuanced and accurate way. Findings might allow scientists to learn, “Do people who eat X get polyps? Is this diet a risk factor for X, Y, or Z disease?” said Stollman. 

Future Clinical Applications

Brenda Davy, PhD, is a registered dietitian and professor in the Department of Human Nutrition, Foods, and Exercise at Virginia Tech. She conducts research investigating the role of diet in the prevention and treatment of obesity and related conditions such as type 2 diabetes. She also develops dietary assessment methods. More than a decade ago, she developed one of the first rapid assessment tools for quantifying beverage intake — the Beverage Intake Questionnaire — an assessment that is still used today. 

“Dietary assessment is necessary in both research and clinical settings,” Davy said. “If a physician diagnoses a patient with a certain condition, information about the patient’s usual dietary habits can help him or her prescribe dietary changes that may help treat that condition.” 

Biospecimens, like fecal and urine samples, can be a safe, accurate way to collect that data, she said. Samples can be obtained easily and noninvasively “in a wide variety of populations such as children or older adults” and in clinical settings. 

Davy and her team use David’s technology in their work — in particular, a tool called FoodSeq that applies DNA metabarcoding to human stool to collect information about food taxa consumed. Their two labs are now collaborating on a project investigating how ultraprocessed foods might impact type 2 diabetes risk and cardiovascular health. 

There are many directions David’s lab would like to take their research, possibly partnering with epidemiologists on global studies that would help them expand their DNA database and better understand how, for example, climate change may be affecting diet diversity and to learn more about diet across different populations.

A version of this article appeared on Medscape.com.

A lightbulb moment hit as Lawrence David was chatting one day with an ecologist who studies the microbiomes and diets of large herbivores in the African savanna. David was envious. He’d been studying the human microbiome, and this ecologist had tons of animal statistics that were way more specific than what David had obtained from people.

“How on earth do you get all these dietary data?” David recalled asking. “Obviously, he didn’t ask the animals what they ate.”

All those specific statistics came from DNA sequencing of animal scat scooped up from the savanna. 

Indeed. 

Depending on when you read this, you may have the DNA of more than a dozen plant species, plus another three or four animal species, gurgling through your gut. That’s the straight poop taken straight from, well, poop.

David and colleagues are analyzing the DNA in human feces to better understand digestion and the links between diet and health, potentially paving the way to treatments for diet-linked diseases.

Diet, DNA, and Feces

Everything we eat (except vitamins, minerals, and salt) came from something that was living, and all living things have genomes. 

“A decent fraction of that DNA” goes undigested and is then excreted, said David, a PhD and associate professor of molecular genetics and microbiology at Duke University, Durham, North Carolina. 

“We are using DNA sequencing to reconstruct what people eat,” David said. “We try to see if there are patterns in what people eat and how we can measure them by DNA, or kind of genetic forensics.” Then they connect that data to health outcomes like obesity. 

A typical person’s excrement probably contains the DNA of 10-20 plant species and three or four types of animal DNA. “And that’s the average person. Some people may have more like 40 types at any given time,” David said. 

Studying DNA in human feces has potential applications in research and in clinical settings. For instance, it could help design personalized nutrition strategies for patients, something that’s already being tested. He hopes that DNA information will help “connect patterns in what people eat to their microbiomes.” 

One big advantage: Feces don’t lie. In reconstructing someone’s diet, people either forget what they ate, fudge the truth, or can’t be bothered to keep track. 

“Patients report the fruit they ate yesterday but not the M&Ms,” said Neil Stollman, MD, chief of the division of gastroenterology at Alta Bates Summit Medical Center in Oakland, California. 

Some people can’t write it all down because they’re too old or too young — the very people at highest risk of nutrition-associated disease, said David. 

Fetching and Figuring Out Feces

It’s a lot of work to collect and analyze fecal matter, for ethical, legal, and logistical reasons. “And then there’s sort of an ick factor to this kind of work,” David said. 

To get samples, people place a plastic collection cup under the toilet seat to catch the stool. The person then swabs or scoops some of that into a tube, seals the top, and either brings it in or mails it to the lab. 

In the lab, David said, “if the DNA is still inside the plant cells, we crack the cells open using a variety of methods. We use what’s called ‘a stomacher,’ which is like two big paddles, and we load the poop [which is in a plastic bag] into it and then squash it — mash it up. We also sometimes load small particles of what is basically glass into it and then shake really hard — it is another way you can physically break open the plant cells. This can also be done with chemicals. It’s like a chemistry lab,” he said, noting that this process takes about half a day to do.

There is much more bacterial DNA in stool than there is food DNA, and even a little human DNA and sometimes fungi, said David. “The concentration of bacteria in stool is amongst the highest concentrations of bacteria on the planet,” he said, but his lab focuses on the plant DNA they find. 

They use a molecular process called polymerase chain reaction (PCR) that amplifies and selectively copies DNA from plants. (The scientists who invented this “ingenious” process won a Nobel Prize, David noted.) Like a COVID PCR test, the process only matches up for certain kinds of DNA and can be designed to be more specific or less specific. In David’s lab, they shoot for a middle ground of specificity, where the PCR process is targeting chloroplasts in plants. 

Once they’ve detected all the different sequences of food species, they need to find the DNA code, a time-consuming step. His colleague Briana Petrone compiled a reference database of specific sequences of DNA that correspond to different species of plants. This work took more than a year, said David, noting that only a handful of other labs around the country are sequencing DNA in feces, most of them looking at it in animals, not humans. 

There are 200,000 to 300,000 species of edible plants estimated to be on the planet, he said. “I think historically, humans have eaten about 7000 of them. We’re kind of like a walking repository of all this genetic material.” 

What Scientists Learn from Fecal DNA

Tracking DNA in digested food can provide valuable data to researchers — information that could have a major impact on nutritional guidance for people with obesity and digestive diseases and other gastrointestinal and nutrition-related issues. 

David and Petrone’s 2023 study analyzing DNA in stool samples, published in the Proceedings of the National Academy of Sciences (PNAS), showed what — and roughly how much — people ate. 

They noticed that kids with obesity had a higher diversity of plants in them than kids without obesity. Sounds backward — wouldn’t a child who eats more plants be a healthier weight? “The more I dug into it, it turns out that foods that are more processed often tend to have more ingredients. So, a Big Mac and fries and a coffee have 19 different plant species,” said David. 

Going forward, he said, researchers may have to be “more specific about how we think about dietary diversity. Maybe not all plant species count toward health in the same way.” 

David’s work provides an innovative way to conduct nutrition research, said Jotham Suez, PhD, an assistant professor in the department of molecular microbiology and immunology at Johns Hopkins Bloomberg School of Public Health. 

“We need to have some means of tracking what people actually ate during a study, whether it’s an intervention where we provide them with the food or an observational study where we let people eat their habitual diet and track it themselves,” said Suez, who studies the gut microbiome. 

“Recall bias” makes food questionnaires and apps unreliable. And research suggests that some participants may underreport food intake, possibly because they don’t want to be judged or they misestimate how much they actually consumed. 

“There’s huge promise” with a tool like the one described in the PNAS study for making connections between diet and disease, Suez said. But access may be an issue for many researchers. He expects techniques to improve and costs to go down, but there will be challenges. “This method is also almost exclusively looking at plant DNA material, Suez added, “and our diets contain multiple components that are not plants.” 

And even if a person just eats an apple or a single cucumber, that food may be degraded somewhere else in the gut, and it may be digested differently in different people’s guts. “Metabolism, of course, can be different between people,” Suez said, so the amounts of data will vary. “In their study, the qualitative data is convincing. The quantitative is TBD [to be determined].” 

But he said it might be “a perfect tool” for scientists who want to study indigestible fiber, which is an important area of science, too. 

“I totally buy it as a potentially better way to do dietary analytics for disease associations,” said Stollman, an expert in fecal transplant and diverticulitis and a trustee of the American College of Gastroenterology. Stollman sees many patients with diverticular disease who could benefit. 

“One of the core questions in the diverticular world is, what causes diverticular disease, so we can ideally prevent it? For decades, the theory has been that a low fiber diet contributes to it,” said Stollman, but testing DNA in patients’ stools could help researchers explore the question in a new and potentially more nuanced and accurate way. Findings might allow scientists to learn, “Do people who eat X get polyps? Is this diet a risk factor for X, Y, or Z disease?” said Stollman. 

Future Clinical Applications

Brenda Davy, PhD, is a registered dietitian and professor in the Department of Human Nutrition, Foods, and Exercise at Virginia Tech. She conducts research investigating the role of diet in the prevention and treatment of obesity and related conditions such as type 2 diabetes. She also develops dietary assessment methods. More than a decade ago, she developed one of the first rapid assessment tools for quantifying beverage intake — the Beverage Intake Questionnaire — an assessment that is still used today. 

“Dietary assessment is necessary in both research and clinical settings,” Davy said. “If a physician diagnoses a patient with a certain condition, information about the patient’s usual dietary habits can help him or her prescribe dietary changes that may help treat that condition.” 

Biospecimens, like fecal and urine samples, can be a safe, accurate way to collect that data, she said. Samples can be obtained easily and noninvasively “in a wide variety of populations such as children or older adults” and in clinical settings. 

Davy and her team use David’s technology in their work — in particular, a tool called FoodSeq that applies DNA metabarcoding to human stool to collect information about food taxa consumed. Their two labs are now collaborating on a project investigating how ultraprocessed foods might impact type 2 diabetes risk and cardiovascular health. 

There are many directions David’s lab would like to take their research, possibly partnering with epidemiologists on global studies that would help them expand their DNA database and better understand how, for example, climate change may be affecting diet diversity and to learn more about diet across different populations.

A version of this article appeared on Medscape.com.

TOPLINE:

Despite a high frequency of atypical features, longitudinal melanonychia (LM) in children is associated with an exceedingly low rate of malignancy.

METHODOLOGY:

• LM — a pigmented band in the nail plate caused by increased melanin deposition — occurs in children and adults, resulting from melanocytic activation or proliferation in response to infection, systemic disease, medication, trauma, and other factors.
• Clinical features of LM in children mimic red-flag signs of subungual melanoma in adults although rarely is subungual melanoma.
• A biopsy can confirm the diagnosis, but other considerations include the scar, cost and stress of a procedure, and possibly pain or deformity.
• The researchers conducted a systematic review and meta-analysis of the prevalence of clinical and dermoscopic features in 1391 pediatric patients with LM (diagnosed at a mean age of 5-13 years) from 24 studies published between 1996 and 2023.

TAKEAWAY:

• Of 731 lesions in which a diagnosis was provided, benign nail matrix nevus accounted for 86% of cases.
• Only eight cases of subungual melanoma in situ were diagnosed, with no cases of invasive melanoma identified.
• Most lesions occurred on the fingernails (76%), particularly in the first digits (45%), and the most frequent clinical features included dark-colored bands (70%), multicolored bands (48%), broad bandwidth (41%), and pseudo-Hutchinson sign (41%).
• During a median follow-up of 1-5.5 years, 30% of lesions continued to evolve with changes in width or color, while 23% remained stable and 20% underwent spontaneous regression.

IN PRACTICE:

“In the pivotal clinical decision of whether to biopsy a child with longitudinal melanonychia, perhaps with features that would require a prompt biopsy in an adult, this study provides data to support the option of clinical monitoring,” the authors wrote.

SOURCE:

The meta-analysis, led by Serena Yun-Chen Tsai, MD, in the Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, was published online in Pediatric Dermatology.

LIMITATIONS:

Most studies were conducted in Asia, and data stratified by skin type were limited. Inconsistent reporting and missing critical features could affect data quality. Also, certain features displayed high heterogeneity.

DISCLOSURES:

This meta-analysis was supported by the Pediatric Dermatology Research Alliance Career Bridge Research Grant. One co-author disclosed relationships with UpToDate (author, reviewer), Skin Analytics (consultant), and DermTech (research materials).

A version of this article appeared on Medscape.com.

TOPLINE:

Despite a high frequency of atypical features, longitudinal melanonychia (LM) in children is associated with an exceedingly low rate of malignancy.

METHODOLOGY:

• LM — a pigmented band in the nail plate caused by increased melanin deposition — occurs in children and adults, resulting from melanocytic activation or proliferation in response to infection, systemic disease, medication, trauma, and other factors.
• Clinical features of LM in children mimic red-flag signs of subungual melanoma in adults although rarely is subungual melanoma.
• A biopsy can confirm the diagnosis, but other considerations include the scar, cost and stress of a procedure, and possibly pain or deformity.
• The researchers conducted a systematic review and meta-analysis of the prevalence of clinical and dermoscopic features in 1391 pediatric patients with LM (diagnosed at a mean age of 5-13 years) from 24 studies published between 1996 and 2023.

TAKEAWAY:

• Of 731 lesions in which a diagnosis was provided, benign nail matrix nevus accounted for 86% of cases.
• Only eight cases of subungual melanoma in situ were diagnosed, with no cases of invasive melanoma identified.
• Most lesions occurred on the fingernails (76%), particularly in the first digits (45%), and the most frequent clinical features included dark-colored bands (70%), multicolored bands (48%), broad bandwidth (41%), and pseudo-Hutchinson sign (41%).
• During a median follow-up of 1-5.5 years, 30% of lesions continued to evolve with changes in width or color, while 23% remained stable and 20% underwent spontaneous regression.

IN PRACTICE:

“In the pivotal clinical decision of whether to biopsy a child with longitudinal melanonychia, perhaps with features that would require a prompt biopsy in an adult, this study provides data to support the option of clinical monitoring,” the authors wrote.

SOURCE:

The meta-analysis, led by Serena Yun-Chen Tsai, MD, in the Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, was published online in Pediatric Dermatology.

LIMITATIONS:

Most studies were conducted in Asia, and data stratified by skin type were limited. Inconsistent reporting and missing critical features could affect data quality. Also, certain features displayed high heterogeneity.

DISCLOSURES:

This meta-analysis was supported by the Pediatric Dermatology Research Alliance Career Bridge Research Grant. One co-author disclosed relationships with UpToDate (author, reviewer), Skin Analytics (consultant), and DermTech (research materials).

A version of this article appeared on Medscape.com.

TOPLINE:

Despite a high frequency of atypical features, longitudinal melanonychia (LM) in children is associated with an exceedingly low rate of malignancy.

METHODOLOGY:

• LM — a pigmented band in the nail plate caused by increased melanin deposition — occurs in children and adults, resulting from melanocytic activation or proliferation in response to infection, systemic disease, medication, trauma, and other factors.
• Clinical features of LM in children mimic red-flag signs of subungual melanoma in adults although rarely is subungual melanoma.
• A biopsy can confirm the diagnosis, but other considerations include the scar, cost and stress of a procedure, and possibly pain or deformity.
• The researchers conducted a systematic review and meta-analysis of the prevalence of clinical and dermoscopic features in 1391 pediatric patients with LM (diagnosed at a mean age of 5-13 years) from 24 studies published between 1996 and 2023.

TAKEAWAY:

• Of 731 lesions in which a diagnosis was provided, benign nail matrix nevus accounted for 86% of cases.
• Only eight cases of subungual melanoma in situ were diagnosed, with no cases of invasive melanoma identified.
• Most lesions occurred on the fingernails (76%), particularly in the first digits (45%), and the most frequent clinical features included dark-colored bands (70%), multicolored bands (48%), broad bandwidth (41%), and pseudo-Hutchinson sign (41%).
• During a median follow-up of 1-5.5 years, 30% of lesions continued to evolve with changes in width or color, while 23% remained stable and 20% underwent spontaneous regression.

IN PRACTICE:

“In the pivotal clinical decision of whether to biopsy a child with longitudinal melanonychia, perhaps with features that would require a prompt biopsy in an adult, this study provides data to support the option of clinical monitoring,” the authors wrote.

SOURCE:

The meta-analysis, led by Serena Yun-Chen Tsai, MD, in the Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, was published online in Pediatric Dermatology.

LIMITATIONS:

Most studies were conducted in Asia, and data stratified by skin type were limited. Inconsistent reporting and missing critical features could affect data quality. Also, certain features displayed high heterogeneity.

DISCLOSURES:

This meta-analysis was supported by the Pediatric Dermatology Research Alliance Career Bridge Research Grant. One co-author disclosed relationships with UpToDate (author, reviewer), Skin Analytics (consultant), and DermTech (research materials).

A version of this article appeared on Medscape.com.

TOPLINE:

Hypoplastic pitted amelogenesis imperfecta may affect patients with the rare genetic disorder Kindler epidermolysis bullosa (KEB).

METHODOLOGY:

• KEB or Kindler syndrome, a genetic skin-blistering disease associated with pathogenic variants in FERMT1, is the rarest type of EB. Early detection and preventive measures can minimize complications, such as gum disease and other oral health issues, that have been reported in patients with KEB.
• Amelogenesis imperfecta is a group of rare genetic developmental conditions characterized by tooth enamel defects and can be associated with hypersensitivity and eruption disturbances in teeth, as well as periodontal conditions.
• Researchers conducted a longitudinal study on 36 patients with KEB (age, 2 weeks to 70 years; 42% female) from two clinics in Germany and Chile from 2003 to 2023, with follow-up times of 1-24 years.
• The primary outcomes were presence of orofacial features, including amelogenesis imperfecta, intraoral wounds,  and periodontal disease, and oral squamous cell carcinoma.

TAKEAWAY:

• All 11 patients with information on enamel structure in their records had pitted enamel anomalies (pitted amelogenesis imperfecta), with variable severity.
• Of patients whose enamel could not be analyzed, three had all teeth crowned in their 20s, suggesting enamel defects, and two had all teeth extracted in their teens or 20s, indicating severe periodontal disease.
• The most common orofacial features were periodontal disease (27 of 36 patients), intraoral lesions (16 of 22 patients), angular cheilitis (24 of 33 patients), and cheilitis (22 of 34 patients), gingival overgrowth (17 of 26 patients), microstomia (14 of 25 patients), and vestibular obliteration (8 of 16 patients).
• Oral squamous cell carcinoma was diagnosed at the site of chronic lip lesions in two patients, with lethal outcomes.

IN PRACTICE:

These findings highlight the extent and severity of oral manifestations in KEB, the authors concluded, adding that “oral care is mandatory” in patients with KEB.

SOURCE:

This report, led by Susanne Krämer, DDS, MSc, of Medical Faculty and Medical Center, University of Freiburg, Freiburg im Breisgau, Germany, was published online in JAMA Dermatology.

LIMITATIONS:

The small sample size and the retrospective nature of the study could limit its generalizability.

DISCLOSURES:

The authors did not disclose any source of funding. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

Hypoplastic pitted amelogenesis imperfecta may affect patients with the rare genetic disorder Kindler epidermolysis bullosa (KEB).

METHODOLOGY:

• KEB or Kindler syndrome, a genetic skin-blistering disease associated with pathogenic variants in FERMT1, is the rarest type of EB. Early detection and preventive measures can minimize complications, such as gum disease and other oral health issues, that have been reported in patients with KEB.
• Amelogenesis imperfecta is a group of rare genetic developmental conditions characterized by tooth enamel defects and can be associated with hypersensitivity and eruption disturbances in teeth, as well as periodontal conditions.
• Researchers conducted a longitudinal study on 36 patients with KEB (age, 2 weeks to 70 years; 42% female) from two clinics in Germany and Chile from 2003 to 2023, with follow-up times of 1-24 years.
• The primary outcomes were presence of orofacial features, including amelogenesis imperfecta, intraoral wounds,  and periodontal disease, and oral squamous cell carcinoma.

TAKEAWAY:

• All 11 patients with information on enamel structure in their records had pitted enamel anomalies (pitted amelogenesis imperfecta), with variable severity.
• Of patients whose enamel could not be analyzed, three had all teeth crowned in their 20s, suggesting enamel defects, and two had all teeth extracted in their teens or 20s, indicating severe periodontal disease.
• The most common orofacial features were periodontal disease (27 of 36 patients), intraoral lesions (16 of 22 patients), angular cheilitis (24 of 33 patients), and cheilitis (22 of 34 patients), gingival overgrowth (17 of 26 patients), microstomia (14 of 25 patients), and vestibular obliteration (8 of 16 patients).
• Oral squamous cell carcinoma was diagnosed at the site of chronic lip lesions in two patients, with lethal outcomes.

IN PRACTICE:

These findings highlight the extent and severity of oral manifestations in KEB, the authors concluded, adding that “oral care is mandatory” in patients with KEB.

SOURCE:

This report, led by Susanne Krämer, DDS, MSc, of Medical Faculty and Medical Center, University of Freiburg, Freiburg im Breisgau, Germany, was published online in JAMA Dermatology.

LIMITATIONS:

The small sample size and the retrospective nature of the study could limit its generalizability.

DISCLOSURES:

The authors did not disclose any source of funding. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

Hypoplastic pitted amelogenesis imperfecta may affect patients with the rare genetic disorder Kindler epidermolysis bullosa (KEB).

METHODOLOGY:

• KEB or Kindler syndrome, a genetic skin-blistering disease associated with pathogenic variants in FERMT1, is the rarest type of EB. Early detection and preventive measures can minimize complications, such as gum disease and other oral health issues, that have been reported in patients with KEB.
• Amelogenesis imperfecta is a group of rare genetic developmental conditions characterized by tooth enamel defects and can be associated with hypersensitivity and eruption disturbances in teeth, as well as periodontal conditions.
• Researchers conducted a longitudinal study on 36 patients with KEB (age, 2 weeks to 70 years; 42% female) from two clinics in Germany and Chile from 2003 to 2023, with follow-up times of 1-24 years.
• The primary outcomes were presence of orofacial features, including amelogenesis imperfecta, intraoral wounds,  and periodontal disease, and oral squamous cell carcinoma.

TAKEAWAY:

• All 11 patients with information on enamel structure in their records had pitted enamel anomalies (pitted amelogenesis imperfecta), with variable severity.
• Of patients whose enamel could not be analyzed, three had all teeth crowned in their 20s, suggesting enamel defects, and two had all teeth extracted in their teens or 20s, indicating severe periodontal disease.
• The most common orofacial features were periodontal disease (27 of 36 patients), intraoral lesions (16 of 22 patients), angular cheilitis (24 of 33 patients), and cheilitis (22 of 34 patients), gingival overgrowth (17 of 26 patients), microstomia (14 of 25 patients), and vestibular obliteration (8 of 16 patients).
• Oral squamous cell carcinoma was diagnosed at the site of chronic lip lesions in two patients, with lethal outcomes.

IN PRACTICE:

These findings highlight the extent and severity of oral manifestations in KEB, the authors concluded, adding that “oral care is mandatory” in patients with KEB.

SOURCE:

This report, led by Susanne Krämer, DDS, MSc, of Medical Faculty and Medical Center, University of Freiburg, Freiburg im Breisgau, Germany, was published online in JAMA Dermatology.

LIMITATIONS:

The small sample size and the retrospective nature of the study could limit its generalizability.

DISCLOSURES:

The authors did not disclose any source of funding. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

SAN DIEGO — In two different phase 2b trial extensions, oral treatment with Janus kinase (JAK) inhibitors showed improved skin clearance in patients with vitiligo, according to presentations at a late-breaking session at the annual meeting of the American Academy of Dermatology (AAD).

In one, the addition of narrow-band ultraviolet-B (NB-UVB) light therapy to ritlecitinib appears more effective than ritlecitinib alone. In the other study, the effectiveness of upadacitinib appears to improve over time.

Based on the ritlecitinib data, “if you have phototherapy in your office, it might be good to couple it with ritlecitinib for vitiligo patients,” said Emma Guttman-Yassky, MD, PhD, chair of the Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York City, who presented the findings.

However, because of the relatively small numbers in the extension study, Dr. Guttman-Yassky characterized the evidence as preliminary and in need of further investigation.

For vitiligo, the only approved JAK inhibitor is ruxolitinib, 1.5%, in a cream formulation. In June, ritlecitinib (Litfulo) was approved by the Food and Drug Administration (FDA) for alopecia areata. Phototherapy, which has been used for decades in the treatment of vitiligo, has an established efficacy and safety profile as a stand-alone vitiligo treatment. Upadacitinib has numerous indications for inflammatory diseases, such as rheumatoid arthritis, and was granted FDA approval for atopic dermatitis in 2022.
 

NB-UVB Arm Added in Ritlecitinib Extension

The ritlecitinib study population was drawn from patients with non-segmental vitiligo who initially participated in a 24-week dose-ranging period of a phase 2b trial published last year. In that study, 364 patients were randomized to doses of once-daily ritlecitinib ranging from 10 to 50 mg with or without a 4-week loading regimen. Higher doses were generally associated with greater efficacy on the primary endpoint of facial vitiligo area scoring index (F-VASI) but not with a greater risk for adverse events.

In the 24-week extension study, 187 patients received a 4-week loading regimen of 200-mg ritlecitinib daily followed by 50 mg of daily ritlecitinib for the remaining 20 weeks. Another 43 patients were randomized to one of two arms: The same 4-week loading regimen of 200-mg ritlecitinib daily followed by 50 mg of daily ritlecitinib or to 50-mg daily ritlecitinib without a loading dose but combined with NB-UVB delivered twice per week.

Important to interpretation of results, there was an additional twist. Patients in the randomized arm who had < 10% improvement in the total vitiligo area severity index (T-VASI) at week 12 of the extension were discontinued from the study.

The endpoints considered when comparing ritlecitinib with or without NB-UVB at the end of the extension study were F-VASI, T-VASI, patient global impression of change, and adverse events. Responses were assessed on the basis of both observed and last observation carried forward (LOCF).

Of the 43 people, who were randomized in the extension study, nine (21%) had < 10% improvement in T-VASI and were therefore discontinued from the study.

At the end of 24 weeks, both groups had a substantial response to their assigned therapy, but the addition of NB-UVB increased rates of response, although not always at a level of statistical significance, according to Dr. Guttman-Yassky.

For the percent improvement in F-VASI, specifically, the increase did not reach significance on the basis of LOCF (57.9% vs 51.5%; P = .158) but was highly significant on the basis of observed responses (69.6% vs 55.1%; P = .009). For T-VASI, differences for adjunctive NB-UVB over monotherapy did not reach significance for either observed or LOCF responses, but it was significant for observed responses in a patient global impression of change.
 

Small Numbers Limit Strength of Ritlecitinib, NB-UVB Evidence

However, Dr. Guttman-Yassky said it is important “to pay attention to the sample sizes” when noting the lack of significance.

The combination appeared safe, and there were no side effects associated with the addition of twice-weekly NB-UVB to ritlecitinib.

She acknowledged that the design of this analysis was “complicated” and that the number of randomized patients was small. She suggested the findings support the potential for benefit from the combination of a JAK inhibitor and NB-UVB, both of which have shown efficacy as monotherapy in previous studies. She indicated that a trial of this combination is reasonable while awaiting a more definitive study.

One of the questions that might be posed in a larger study is the timing of NB-UVB, such as whether it is best reserved for those with inadequate early response to a JAK inhibitor or if optimal results are achieved when a JAK inhibitor and NB-UVB are initiated simultaneously.

Upadacitinib Monotherapy Results

One rationale for initiating therapy with the combination of a JAK inhibitor and NB-UVB is the potential for a more rapid response, but extended results from a second phase 2b study with a different oral JAK inhibitor, upadacitinib, suggested responses on JAK inhibitor monotherapy improve steadily over time.

“The overall efficacy continued to improve without reaching a plateau at 1 year,” reported Thierry Passeron, MD, PhD, professor and chair, Department of Dermatology, Université Côte d’Azur, Nice, France. He spoke at the same AAD late-breaking session as Dr. Guttman-Yassky.

The 24-week dose-ranging data from the upadacitinib trial were previously reported at the 2023 annual meeting of the European Association of Dermatology and Venereology. In the placebo-controlled portion, which randomized 185 patients with extensive non-segmental vitiligo to 6 mg, 11 mg, or 22 mg, the two higher doses were significantly more effective than placebo.

In the extension, patients in the placebo group were randomized to 11 mg or 22 mg, while those in the higher dose groups remained on their assigned therapies.
 

F-VASI Almost Doubled in Extension Trial

From week 24 to week 52, there was nearly a doubling of the percent F-VASI reduction, climbing from 32% to 60.8% in the 11-mg group and from 38.7% to 64.9% in the 22-mg group, Dr. Passeron said. Placebo groups who were switched to active therapy at 24 weeks rapidly approached the rates of F-VASI response of those initiated on upadacitinib.

The percent reductions in T-VASI, although lower, followed the same pattern. For the 11-mg group, the reduction climbed from 16% at 24 weeks to 44.7% at 52 weeks. For the 22-mg group, the reduction climbed from 22.9% to 44.4%. Patients who were switched from placebo to 11 mg or to 22 mg also experienced improvements in T-VASI up to 52 weeks, although the level of improvement was lower than that in patients initially randomized to the higher doses of upadacitinib.

There were “no new safety signals” for upadacitinib, which is FDA-approved for multiple indications, according to Dr. Passeron. He said acne-like lesions were the most bothersome adverse event, and cases of herpes zoster were “rare.”

A version of these data was published in a British Journal of Dermatology supplement just prior to the AAD meeting.

Phase 3 vitiligo trials are planned for both ritlecitinib and upadacitinib.

Dr. Guttman-Yassky reported financial relationships with approximately 45 pharmaceutical companies, including Pfizer, which makes ritlecitinib and provided funding for the study she discussed. Dr. Passeron reported financial relationships with approximately 40 pharmaceutical companies, including AbbVie, which makes upadacitinib and provided funding for the study he discussed.

A version of this article appeared on Medscape.com.

SAN DIEGO — In two different phase 2b trial extensions, oral treatment with Janus kinase (JAK) inhibitors showed improved skin clearance in patients with vitiligo, according to presentations at a late-breaking session at the annual meeting of the American Academy of Dermatology (AAD).

In one, the addition of narrow-band ultraviolet-B (NB-UVB) light therapy to ritlecitinib appears more effective than ritlecitinib alone. In the other study, the effectiveness of upadacitinib appears to improve over time.

Based on the ritlecitinib data, “if you have phototherapy in your office, it might be good to couple it with ritlecitinib for vitiligo patients,” said Emma Guttman-Yassky, MD, PhD, chair of the Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York City, who presented the findings.

However, because of the relatively small numbers in the extension study, Dr. Guttman-Yassky characterized the evidence as preliminary and in need of further investigation.

For vitiligo, the only approved JAK inhibitor is ruxolitinib, 1.5%, in a cream formulation. In June, ritlecitinib (Litfulo) was approved by the Food and Drug Administration (FDA) for alopecia areata. Phototherapy, which has been used for decades in the treatment of vitiligo, has an established efficacy and safety profile as a stand-alone vitiligo treatment. Upadacitinib has numerous indications for inflammatory diseases, such as rheumatoid arthritis, and was granted FDA approval for atopic dermatitis in 2022.
 

NB-UVB Arm Added in Ritlecitinib Extension

The ritlecitinib study population was drawn from patients with non-segmental vitiligo who initially participated in a 24-week dose-ranging period of a phase 2b trial published last year. In that study, 364 patients were randomized to doses of once-daily ritlecitinib ranging from 10 to 50 mg with or without a 4-week loading regimen. Higher doses were generally associated with greater efficacy on the primary endpoint of facial vitiligo area scoring index (F-VASI) but not with a greater risk for adverse events.

In the 24-week extension study, 187 patients received a 4-week loading regimen of 200-mg ritlecitinib daily followed by 50 mg of daily ritlecitinib for the remaining 20 weeks. Another 43 patients were randomized to one of two arms: The same 4-week loading regimen of 200-mg ritlecitinib daily followed by 50 mg of daily ritlecitinib or to 50-mg daily ritlecitinib without a loading dose but combined with NB-UVB delivered twice per week.

Important to interpretation of results, there was an additional twist. Patients in the randomized arm who had < 10% improvement in the total vitiligo area severity index (T-VASI) at week 12 of the extension were discontinued from the study.

The endpoints considered when comparing ritlecitinib with or without NB-UVB at the end of the extension study were F-VASI, T-VASI, patient global impression of change, and adverse events. Responses were assessed on the basis of both observed and last observation carried forward (LOCF).

Of the 43 people, who were randomized in the extension study, nine (21%) had < 10% improvement in T-VASI and were therefore discontinued from the study.

At the end of 24 weeks, both groups had a substantial response to their assigned therapy, but the addition of NB-UVB increased rates of response, although not always at a level of statistical significance, according to Dr. Guttman-Yassky.

For the percent improvement in F-VASI, specifically, the increase did not reach significance on the basis of LOCF (57.9% vs 51.5%; P = .158) but was highly significant on the basis of observed responses (69.6% vs 55.1%; P = .009). For T-VASI, differences for adjunctive NB-UVB over monotherapy did not reach significance for either observed or LOCF responses, but it was significant for observed responses in a patient global impression of change.
 

Small Numbers Limit Strength of Ritlecitinib, NB-UVB Evidence

However, Dr. Guttman-Yassky said it is important “to pay attention to the sample sizes” when noting the lack of significance.

The combination appeared safe, and there were no side effects associated with the addition of twice-weekly NB-UVB to ritlecitinib.

She acknowledged that the design of this analysis was “complicated” and that the number of randomized patients was small. She suggested the findings support the potential for benefit from the combination of a JAK inhibitor and NB-UVB, both of which have shown efficacy as monotherapy in previous studies. She indicated that a trial of this combination is reasonable while awaiting a more definitive study.

One of the questions that might be posed in a larger study is the timing of NB-UVB, such as whether it is best reserved for those with inadequate early response to a JAK inhibitor or if optimal results are achieved when a JAK inhibitor and NB-UVB are initiated simultaneously.

Upadacitinib Monotherapy Results

One rationale for initiating therapy with the combination of a JAK inhibitor and NB-UVB is the potential for a more rapid response, but extended results from a second phase 2b study with a different oral JAK inhibitor, upadacitinib, suggested responses on JAK inhibitor monotherapy improve steadily over time.

“The overall efficacy continued to improve without reaching a plateau at 1 year,” reported Thierry Passeron, MD, PhD, professor and chair, Department of Dermatology, Université Côte d’Azur, Nice, France. He spoke at the same AAD late-breaking session as Dr. Guttman-Yassky.

The 24-week dose-ranging data from the upadacitinib trial were previously reported at the 2023 annual meeting of the European Association of Dermatology and Venereology. In the placebo-controlled portion, which randomized 185 patients with extensive non-segmental vitiligo to 6 mg, 11 mg, or 22 mg, the two higher doses were significantly more effective than placebo.

In the extension, patients in the placebo group were randomized to 11 mg or 22 mg, while those in the higher dose groups remained on their assigned therapies.
 

F-VASI Almost Doubled in Extension Trial

From week 24 to week 52, there was nearly a doubling of the percent F-VASI reduction, climbing from 32% to 60.8% in the 11-mg group and from 38.7% to 64.9% in the 22-mg group, Dr. Passeron said. Placebo groups who were switched to active therapy at 24 weeks rapidly approached the rates of F-VASI response of those initiated on upadacitinib.

The percent reductions in T-VASI, although lower, followed the same pattern. For the 11-mg group, the reduction climbed from 16% at 24 weeks to 44.7% at 52 weeks. For the 22-mg group, the reduction climbed from 22.9% to 44.4%. Patients who were switched from placebo to 11 mg or to 22 mg also experienced improvements in T-VASI up to 52 weeks, although the level of improvement was lower than that in patients initially randomized to the higher doses of upadacitinib.

There were “no new safety signals” for upadacitinib, which is FDA-approved for multiple indications, according to Dr. Passeron. He said acne-like lesions were the most bothersome adverse event, and cases of herpes zoster were “rare.”

A version of these data was published in a British Journal of Dermatology supplement just prior to the AAD meeting.

Phase 3 vitiligo trials are planned for both ritlecitinib and upadacitinib.

Dr. Guttman-Yassky reported financial relationships with approximately 45 pharmaceutical companies, including Pfizer, which makes ritlecitinib and provided funding for the study she discussed. Dr. Passeron reported financial relationships with approximately 40 pharmaceutical companies, including AbbVie, which makes upadacitinib and provided funding for the study he discussed.

A version of this article appeared on Medscape.com.

SAN DIEGO — In two different phase 2b trial extensions, oral treatment with Janus kinase (JAK) inhibitors showed improved skin clearance in patients with vitiligo, according to presentations at a late-breaking session at the annual meeting of the American Academy of Dermatology (AAD).

In one, the addition of narrow-band ultraviolet-B (NB-UVB) light therapy to ritlecitinib appears more effective than ritlecitinib alone. In the other study, the effectiveness of upadacitinib appears to improve over time.

Based on the ritlecitinib data, “if you have phototherapy in your office, it might be good to couple it with ritlecitinib for vitiligo patients,” said Emma Guttman-Yassky, MD, PhD, chair of the Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York City, who presented the findings.

However, because of the relatively small numbers in the extension study, Dr. Guttman-Yassky characterized the evidence as preliminary and in need of further investigation.

For vitiligo, the only approved JAK inhibitor is ruxolitinib, 1.5%, in a cream formulation. In June, ritlecitinib (Litfulo) was approved by the Food and Drug Administration (FDA) for alopecia areata. Phototherapy, which has been used for decades in the treatment of vitiligo, has an established efficacy and safety profile as a stand-alone vitiligo treatment. Upadacitinib has numerous indications for inflammatory diseases, such as rheumatoid arthritis, and was granted FDA approval for atopic dermatitis in 2022.
 

NB-UVB Arm Added in Ritlecitinib Extension

The ritlecitinib study population was drawn from patients with non-segmental vitiligo who initially participated in a 24-week dose-ranging period of a phase 2b trial published last year. In that study, 364 patients were randomized to doses of once-daily ritlecitinib ranging from 10 to 50 mg with or without a 4-week loading regimen. Higher doses were generally associated with greater efficacy on the primary endpoint of facial vitiligo area scoring index (F-VASI) but not with a greater risk for adverse events.

In the 24-week extension study, 187 patients received a 4-week loading regimen of 200-mg ritlecitinib daily followed by 50 mg of daily ritlecitinib for the remaining 20 weeks. Another 43 patients were randomized to one of two arms: The same 4-week loading regimen of 200-mg ritlecitinib daily followed by 50 mg of daily ritlecitinib or to 50-mg daily ritlecitinib without a loading dose but combined with NB-UVB delivered twice per week.

Important to interpretation of results, there was an additional twist. Patients in the randomized arm who had < 10% improvement in the total vitiligo area severity index (T-VASI) at week 12 of the extension were discontinued from the study.

The endpoints considered when comparing ritlecitinib with or without NB-UVB at the end of the extension study were F-VASI, T-VASI, patient global impression of change, and adverse events. Responses were assessed on the basis of both observed and last observation carried forward (LOCF).

Of the 43 people, who were randomized in the extension study, nine (21%) had < 10% improvement in T-VASI and were therefore discontinued from the study.

At the end of 24 weeks, both groups had a substantial response to their assigned therapy, but the addition of NB-UVB increased rates of response, although not always at a level of statistical significance, according to Dr. Guttman-Yassky.

For the percent improvement in F-VASI, specifically, the increase did not reach significance on the basis of LOCF (57.9% vs 51.5%; P = .158) but was highly significant on the basis of observed responses (69.6% vs 55.1%; P = .009). For T-VASI, differences for adjunctive NB-UVB over monotherapy did not reach significance for either observed or LOCF responses, but it was significant for observed responses in a patient global impression of change.
 

Small Numbers Limit Strength of Ritlecitinib, NB-UVB Evidence

However, Dr. Guttman-Yassky said it is important “to pay attention to the sample sizes” when noting the lack of significance.

The combination appeared safe, and there were no side effects associated with the addition of twice-weekly NB-UVB to ritlecitinib.

She acknowledged that the design of this analysis was “complicated” and that the number of randomized patients was small. She suggested the findings support the potential for benefit from the combination of a JAK inhibitor and NB-UVB, both of which have shown efficacy as monotherapy in previous studies. She indicated that a trial of this combination is reasonable while awaiting a more definitive study.

One of the questions that might be posed in a larger study is the timing of NB-UVB, such as whether it is best reserved for those with inadequate early response to a JAK inhibitor or if optimal results are achieved when a JAK inhibitor and NB-UVB are initiated simultaneously.

Upadacitinib Monotherapy Results

One rationale for initiating therapy with the combination of a JAK inhibitor and NB-UVB is the potential for a more rapid response, but extended results from a second phase 2b study with a different oral JAK inhibitor, upadacitinib, suggested responses on JAK inhibitor monotherapy improve steadily over time.

“The overall efficacy continued to improve without reaching a plateau at 1 year,” reported Thierry Passeron, MD, PhD, professor and chair, Department of Dermatology, Université Côte d’Azur, Nice, France. He spoke at the same AAD late-breaking session as Dr. Guttman-Yassky.

The 24-week dose-ranging data from the upadacitinib trial were previously reported at the 2023 annual meeting of the European Association of Dermatology and Venereology. In the placebo-controlled portion, which randomized 185 patients with extensive non-segmental vitiligo to 6 mg, 11 mg, or 22 mg, the two higher doses were significantly more effective than placebo.

In the extension, patients in the placebo group were randomized to 11 mg or 22 mg, while those in the higher dose groups remained on their assigned therapies.
 

F-VASI Almost Doubled in Extension Trial

From week 24 to week 52, there was nearly a doubling of the percent F-VASI reduction, climbing from 32% to 60.8% in the 11-mg group and from 38.7% to 64.9% in the 22-mg group, Dr. Passeron said. Placebo groups who were switched to active therapy at 24 weeks rapidly approached the rates of F-VASI response of those initiated on upadacitinib.

The percent reductions in T-VASI, although lower, followed the same pattern. For the 11-mg group, the reduction climbed from 16% at 24 weeks to 44.7% at 52 weeks. For the 22-mg group, the reduction climbed from 22.9% to 44.4%. Patients who were switched from placebo to 11 mg or to 22 mg also experienced improvements in T-VASI up to 52 weeks, although the level of improvement was lower than that in patients initially randomized to the higher doses of upadacitinib.

There were “no new safety signals” for upadacitinib, which is FDA-approved for multiple indications, according to Dr. Passeron. He said acne-like lesions were the most bothersome adverse event, and cases of herpes zoster were “rare.”

A version of these data was published in a British Journal of Dermatology supplement just prior to the AAD meeting.

Phase 3 vitiligo trials are planned for both ritlecitinib and upadacitinib.

Dr. Guttman-Yassky reported financial relationships with approximately 45 pharmaceutical companies, including Pfizer, which makes ritlecitinib and provided funding for the study she discussed. Dr. Passeron reported financial relationships with approximately 40 pharmaceutical companies, including AbbVie, which makes upadacitinib and provided funding for the study he discussed.

A version of this article appeared on Medscape.com.

One in three Black men in rural America experienced suicidal or death ideation (SDI) in the past week, new research showed.

A developmental model used in the study showed a direct association between experiences pertaining to threat, deprivation, and racial discrimination during childhood and suicide risk in adulthood, suggesting that a broad range of adverse experiences in early life may affect SDI risk among Black men.

“During the past 20-30 years, young Black men have evinced increasing levels of suicidal behavior and related cognitions,” lead author Steven Kogan, PhD, professor of family and consumer sciences at the University of Georgia, Athens, Georgia, and colleagues wrote.

“By controlling for depressive symptoms in assessing increases in SDI over time, our study’s design directly informed the extent to which social adversities affect SDI independent of other depressive problems,” they added.

The findings were published online in Cultural Diversity and Ethnic Minority Psychology.
 

Second Leading Cause of Death

Suicide is the second leading cause of death for Black Americans ages 15-24, according to the Centers for Disease Control and Prevention. The outlook is worse for Black men, whose death rate from suicide is about four times greater than for Black women.

Previous research suggests Black men are disproportionately exposed to social adversity, including poverty and discrimination, which may increase the risk for SDI. In addition, racial discrimination has been shown to increase the risks for depression, anxiety, and psychological distress among Black youth and adults.

But little research exists to better understand how these negative experiences affect vulnerability to SDI. The new study tested a model linking adversity during childhood and emerging exposure to racial discrimination to increases in suicidal thoughts.

Researchers analyzed data from 504 participants in the African American Men’s Project, which included a series of surveys completed by young men in rural Georgia at three different time points over a period of about 3 years.

Composite scores for childhood threat and deprivation were developed using the Adverse Childhood Experiences Scale and Childhood Trauma Questionnaire. Everyday discrimination was measured on the Schedule of Racist Events response scale.

To assess their experience with childhood threats, the men in the study, who were about 21 years old on average when they enrolled, were asked if they experienced a series of adverse childhood experiences and deprivation through age 16. Questions explored issues such as directly experiencing physical violence or witnessing abuse in the home and whether the men felt loved and “important or special” as children.

The investigators also asked the men about their experiences of racial discrimination, the quality of their relationships, their belief that aggression is a means of gaining respect, and their cynicism regarding romantic relationships.
 

Targeted Prevention

Overall, 33.6% of participants reported SDI in the previous week. A history of childhood threats and deprivation was associated with an increased likelihood of SDI (P < .001).

Researchers also found that a history of racial discrimination was significantly associated with the development of negative relational schemas, which are characterized by beliefs that other people are untrustworthy, uncaring, and/or hostile. Negative schemas were in turn associated with an increased risk for suicidal thoughts (P = .03).

“Clinical and preventive interventions for suicidality should target the influence of racism and adverse experiences and the negative relational schemas they induce,” the investigators noted.

“Policy efforts designed to dismantle systemic racism are critically needed. Interventions that address SDI, including programming designed to support Black men through their experiences with racial discrimination and processing of childhood experiences of adversity, may help young Black men resist the psychological impacts of racism, expand their positive support networks, and decrease their risk of SDI,” they added.

The study authors reported no funding sources or relevant financial relationships.

A version of this article appeared on Medscape.com.

One in three Black men in rural America experienced suicidal or death ideation (SDI) in the past week, new research showed.

A developmental model used in the study showed a direct association between experiences pertaining to threat, deprivation, and racial discrimination during childhood and suicide risk in adulthood, suggesting that a broad range of adverse experiences in early life may affect SDI risk among Black men.

“During the past 20-30 years, young Black men have evinced increasing levels of suicidal behavior and related cognitions,” lead author Steven Kogan, PhD, professor of family and consumer sciences at the University of Georgia, Athens, Georgia, and colleagues wrote.

“By controlling for depressive symptoms in assessing increases in SDI over time, our study’s design directly informed the extent to which social adversities affect SDI independent of other depressive problems,” they added.

The findings were published online in Cultural Diversity and Ethnic Minority Psychology.
 

Second Leading Cause of Death

Suicide is the second leading cause of death for Black Americans ages 15-24, according to the Centers for Disease Control and Prevention. The outlook is worse for Black men, whose death rate from suicide is about four times greater than for Black women.

Previous research suggests Black men are disproportionately exposed to social adversity, including poverty and discrimination, which may increase the risk for SDI. In addition, racial discrimination has been shown to increase the risks for depression, anxiety, and psychological distress among Black youth and adults.

But little research exists to better understand how these negative experiences affect vulnerability to SDI. The new study tested a model linking adversity during childhood and emerging exposure to racial discrimination to increases in suicidal thoughts.

Researchers analyzed data from 504 participants in the African American Men’s Project, which included a series of surveys completed by young men in rural Georgia at three different time points over a period of about 3 years.

Composite scores for childhood threat and deprivation were developed using the Adverse Childhood Experiences Scale and Childhood Trauma Questionnaire. Everyday discrimination was measured on the Schedule of Racist Events response scale.

To assess their experience with childhood threats, the men in the study, who were about 21 years old on average when they enrolled, were asked if they experienced a series of adverse childhood experiences and deprivation through age 16. Questions explored issues such as directly experiencing physical violence or witnessing abuse in the home and whether the men felt loved and “important or special” as children.

The investigators also asked the men about their experiences of racial discrimination, the quality of their relationships, their belief that aggression is a means of gaining respect, and their cynicism regarding romantic relationships.
 

Targeted Prevention

Overall, 33.6% of participants reported SDI in the previous week. A history of childhood threats and deprivation was associated with an increased likelihood of SDI (P < .001).

Researchers also found that a history of racial discrimination was significantly associated with the development of negative relational schemas, which are characterized by beliefs that other people are untrustworthy, uncaring, and/or hostile. Negative schemas were in turn associated with an increased risk for suicidal thoughts (P = .03).

“Clinical and preventive interventions for suicidality should target the influence of racism and adverse experiences and the negative relational schemas they induce,” the investigators noted.

“Policy efforts designed to dismantle systemic racism are critically needed. Interventions that address SDI, including programming designed to support Black men through their experiences with racial discrimination and processing of childhood experiences of adversity, may help young Black men resist the psychological impacts of racism, expand their positive support networks, and decrease their risk of SDI,” they added.

The study authors reported no funding sources or relevant financial relationships.

A version of this article appeared on Medscape.com.

One in three Black men in rural America experienced suicidal or death ideation (SDI) in the past week, new research showed.

A developmental model used in the study showed a direct association between experiences pertaining to threat, deprivation, and racial discrimination during childhood and suicide risk in adulthood, suggesting that a broad range of adverse experiences in early life may affect SDI risk among Black men.

“During the past 20-30 years, young Black men have evinced increasing levels of suicidal behavior and related cognitions,” lead author Steven Kogan, PhD, professor of family and consumer sciences at the University of Georgia, Athens, Georgia, and colleagues wrote.

“By controlling for depressive symptoms in assessing increases in SDI over time, our study’s design directly informed the extent to which social adversities affect SDI independent of other depressive problems,” they added.

The findings were published online in Cultural Diversity and Ethnic Minority Psychology.
 

Second Leading Cause of Death

Suicide is the second leading cause of death for Black Americans ages 15-24, according to the Centers for Disease Control and Prevention. The outlook is worse for Black men, whose death rate from suicide is about four times greater than for Black women.

Previous research suggests Black men are disproportionately exposed to social adversity, including poverty and discrimination, which may increase the risk for SDI. In addition, racial discrimination has been shown to increase the risks for depression, anxiety, and psychological distress among Black youth and adults.

But little research exists to better understand how these negative experiences affect vulnerability to SDI. The new study tested a model linking adversity during childhood and emerging exposure to racial discrimination to increases in suicidal thoughts.

Researchers analyzed data from 504 participants in the African American Men’s Project, which included a series of surveys completed by young men in rural Georgia at three different time points over a period of about 3 years.

Composite scores for childhood threat and deprivation were developed using the Adverse Childhood Experiences Scale and Childhood Trauma Questionnaire. Everyday discrimination was measured on the Schedule of Racist Events response scale.

To assess their experience with childhood threats, the men in the study, who were about 21 years old on average when they enrolled, were asked if they experienced a series of adverse childhood experiences and deprivation through age 16. Questions explored issues such as directly experiencing physical violence or witnessing abuse in the home and whether the men felt loved and “important or special” as children.

The investigators also asked the men about their experiences of racial discrimination, the quality of their relationships, their belief that aggression is a means of gaining respect, and their cynicism regarding romantic relationships.
 

Targeted Prevention

Overall, 33.6% of participants reported SDI in the previous week. A history of childhood threats and deprivation was associated with an increased likelihood of SDI (P < .001).

Researchers also found that a history of racial discrimination was significantly associated with the development of negative relational schemas, which are characterized by beliefs that other people are untrustworthy, uncaring, and/or hostile. Negative schemas were in turn associated with an increased risk for suicidal thoughts (P = .03).

“Clinical and preventive interventions for suicidality should target the influence of racism and adverse experiences and the negative relational schemas they induce,” the investigators noted.

“Policy efforts designed to dismantle systemic racism are critically needed. Interventions that address SDI, including programming designed to support Black men through their experiences with racial discrimination and processing of childhood experiences of adversity, may help young Black men resist the psychological impacts of racism, expand their positive support networks, and decrease their risk of SDI,” they added.

The study authors reported no funding sources or relevant financial relationships.

A version of this article appeared on Medscape.com.

Experts say pediatricians and primary care clinicians should do more to prevent the toxic effects of lead in their young patients following a 2023 outbreak of elevated levels of lead in children associated with consumption of contaminated applesauce.

Federal legislation in the 1970s eliminated lead from gasoline, paints, and other consumer products, and resulted in significantly reduced blood lead levels (BLLs) in children throughout the United States.

But recently published studies highlight persistent issues with lead in drinking water and consumer products, suggesting that the fight is not over.
 

It’s in the Water

In 2014 the city of Flint, Michigan, changed its water supply and high levels of lead were later found in the municipal water supply.

Effects of that crisis still plague the city today. An initial study found that elevated BLLs had doubled among children between 2013 and 2015.

Lead exposure in young children is associated with several negative outcomes, including decreased cognitive ability, brain volume, and social mobility, and increased anxiety/depression and impulsivity, and higher rates of criminal offenses later in life. 

Many other water systems still contain lead pipes, despite a 1986 ban by the US Environmental Protection Agency on using them for installing or repairing public water systems. The mayor of Chicago announced a plan to start replacing lead service lines in 2020; however, 400,000 households are still served by these pipes, the most in the nation.

Benjamin Huynh, a native of Chicago, was curious about the impact of all those lead service lines. Now an assistant professor in the Department of Environmental Health and Engineering at Johns Hopkins University in Baltimore, Maryland, he and his colleagues researched how many children under the age of 6 years were exposed to contaminated water.

The results showed that lead contamination of water is widespread. 

“We’re estimating that 68% of kids under the age of 6 in Chicago were exposed to lead-contaminated drinking water,” Mr. Huynh said. 

He added that residents in predominantly Black and Latino neighborhoods had the highest risk for lead contamination in their water, but children living on these blocks were less likely to get tested, suggesting a need for more outreach to raise awareness.

Meanwhile, a little over one third of Chicago residents reported drinking bottled water as their main source of drinking water.

But even bottled water could contain lead. The US Food and Drug Administration (FDA) has set a limit for lead in bottled water to five parts per billion. The FDA threshold for taking action in public drinking water systems is 15 parts per billion. But the American Academy of Pediatrics states that no amount of lead in drinking water is considered safe for drinking. 

Mr. Huynh also pointed out that not all home water filters remove lead. Only devices that meet National Sanitation Foundation 53 standards are certified for lead removal. Consumers should verify that the filter package specifically lists the device as certified for removing contaminant lead.
 

Lead-tainted Cinnamon 

Last fall, the North Carolina Department of Health and Human Services identified several children with elevated levels of lead who had consumed WanaBana Apple Cinnamon Fruit Puree pouches.

An investigation by the FDA identified additional brands containing lead and issued a recall of applesauce pouches sold by retailers like Dollar Tree and Amazon.

According to the US Centers for Disease Control and Prevention, nearly 500 children were affected by the tainted applesauce. The FDA traced the source of the lead to cinnamon from a supplier in Ecuador.

An FDA spokesperson told this news organization the episode appears to have resulted from “economically motivated adulteration,” which occurs when a manufacturer leaves out or substitutes a valuable ingredient or part of a food. In the case of spices, lead may be added as a coloring agent or to increase the product weight.

“When we look at domestically made products from large, reputable companies, in general, they do a pretty good job of following safe product guidelines and regulations,” said Kevin Osterhoudt, MD, professor of pediatrics at the Perelman School of Medicine at the University of Pennsylvania in Philadelphia. “But when we use third-party sellers and we import things from other countries that aren’t regulated as closely, we certainly take a lot more risk in the products that we receive.”

While the Food Safety Modernization Act of 2011 aimed to improve agency’s capacity to manage the ever-rising volume of food produced domestically and imported from overseas, the funding has stayed flat while the volume of inspections has increased. In the early 1990s, the number of shipments screened by the agency numbered in the thousands annually. Last year the FDA screened 15 million shipments from more than 200 countries, according to the agency.

Prompted by the finding of lead in applesauce, the FDA began a wider investigation into ground cinnamon by sampling the product from discount retail stores. It recalled an additional six brands of cinnamon sold in the United States containing lead.

Dr. Osterhoudt’s message to families who think their child might have been exposed to a contaminated product is to dispose of it as directed by FDA and CDC guidelines. 

In Philadelphia, where Dr. Osterhoudt practices as an emergency room physician, baseline rates of childhood lead poisoning are already high, so he advises families to “do a larger inventory of all the source potential sources of lead in their life and to reduce all the exposures as low as possible.” 

He also advises parents that a nutritious diet high in calcium and iron can protect their children from the deleterious effects of lead.
 

Current Standards for Lead Screening and Testing

Lead is ubiquitous. The common routes of exposure to humans include use of fossil fuels such as leaded gasoline, some types of industrial facilities, and past use of lead-based paint in homes. In addition to spices, lead has been found in a wide variety of products such as toys, jewelry, antiques, cosmetics, and dietary supplements imported from other countries.

Noah Buncher, DO, is a primary care pediatrician in South Philadelphia at Children’s Hospital of Pennsylvania and the former director of a lead clinic in Boston that provides care for children with lead poisoning. He follows guidelines from the American Academy of Pediatrics that define an elevated BLL as ≥ 3.5 µg/dL. The guidelines recommend screening children for lead exposures during well child visits starting at age 6 months up to 6 years and obtaining a BLL if risks for lead exposure are present. 

Dr. Buncher starts with a basic environmental history that covers items like the age, condition, zip code of home, parental occupations, or hobbies that might result in exposing family members to lead, and if another child in the home has a history of elevated BLLs. 

But a careful history for potential lead exposures can be time-consuming. 

“There’s a lot to cover in a routine well child visit,” Dr. Buncher said. “We have maybe 15-20 minutes to cover a lot.” 

Clinics also vary on whether lead screening questions are put into workflows in the electronic medical record. Although parents can complete a written questionnaire about possible lead exposures, they may have difficulty answering questions about the age of their home or not know whether their occupation is high risk.

Transportation to a clinic is often a barrier for families, and sometimes patients must travel to a separate lab to be tested for lead. 

Dr. Buncher also pointed to the patchwork of local and state requirements that can lead to confusion among providers. Massachusetts, where he formerly practiced, has a universal requirement to test all children at ages 1, 2, and 3 years. But in Pennsylvania, screening laws vary from county to county. 

“Pennsylvania should implement universal screening recommendations for all kids under 6 regardless of what county you live in,” Dr. Buncher said.
 

Protective Measures 

Alan Woolf, MD, a professor of pediatrics at Harvard Medical School, Boston, Massachusetts, and director of the Pediatric Environmental Health Center at Boston Children’s Hospital, has a few ideas about how providers can step up their lead game, including partnering with their local health department. 

The CDC funds Childhood Lead Poisoning Prevention Programs based in state and local health departments to work with clinicians to improve rates of blood lead testing, monitor the prevalence of lead in their jurisdictions, and ensure that a system of referral is available for treatment and lead remediation services in the home.

Dr. Woolf also suggested that clinicians refer patients under age 3 years with high BLLs to their local Early Intervention Program. 

“They’ll assess their child’s development, their speech, their motor skills, their social skills, and if they qualify, it’s free,” Dr. Woolf said. 

He cited research showing children with elevated lead levels who received early intervention services performed better in grade school than equally exposed children who did not access similar services.

Another key strategy for pediatric clinicians is to learn local or state regulations for testing children for lead and how to access lead surveillance data in their practice area. Children who reside in high-risk areas are automatic candidates for screening. 

Dr. Woolf pointed out that big cities are not the only localities with lead in the drinking water. If families are drawing water from their own well, they should collect that water annually to have it tested for lead and microbes.

At the clinic-wide level, Dr. Woolf recommends the use of blood lead testing as a quality improvement measure. For example, Akron Children’s Hospital developed a quality improvement initiative using a clinical decision support tool to raise screening rates in their network of 30 clinics. One year after beginning the project, lead screenings during 12-month well visits increased from 71% to 96%. 

“What we’re interested in as pediatric health professionals is eliminating all background sources of lead in a child’s environment,” Dr. Woolf said. “Whether that’s applesauce pouches, whether that’s lead-containing paint, lead in water, lead in spices, or lead in imported pottery or cookware — there are just a tremendous number of sources of lead that we can do something about.”

None of the subjects reported financial conflicts of interest.

A former pediatrician, Dr. Thomas is a freelance science writer living in Portland, Oregon.

A version of this article appeared on Medscape.com.

Experts say pediatricians and primary care clinicians should do more to prevent the toxic effects of lead in their young patients following a 2023 outbreak of elevated levels of lead in children associated with consumption of contaminated applesauce.

Federal legislation in the 1970s eliminated lead from gasoline, paints, and other consumer products, and resulted in significantly reduced blood lead levels (BLLs) in children throughout the United States.

But recently published studies highlight persistent issues with lead in drinking water and consumer products, suggesting that the fight is not over.
 

It’s in the Water

In 2014 the city of Flint, Michigan, changed its water supply and high levels of lead were later found in the municipal water supply.

Effects of that crisis still plague the city today. An initial study found that elevated BLLs had doubled among children between 2013 and 2015.

Lead exposure in young children is associated with several negative outcomes, including decreased cognitive ability, brain volume, and social mobility, and increased anxiety/depression and impulsivity, and higher rates of criminal offenses later in life. 

Many other water systems still contain lead pipes, despite a 1986 ban by the US Environmental Protection Agency on using them for installing or repairing public water systems. The mayor of Chicago announced a plan to start replacing lead service lines in 2020; however, 400,000 households are still served by these pipes, the most in the nation.

Benjamin Huynh, a native of Chicago, was curious about the impact of all those lead service lines. Now an assistant professor in the Department of Environmental Health and Engineering at Johns Hopkins University in Baltimore, Maryland, he and his colleagues researched how many children under the age of 6 years were exposed to contaminated water.

The results showed that lead contamination of water is widespread. 

“We’re estimating that 68% of kids under the age of 6 in Chicago were exposed to lead-contaminated drinking water,” Mr. Huynh said. 

He added that residents in predominantly Black and Latino neighborhoods had the highest risk for lead contamination in their water, but children living on these blocks were less likely to get tested, suggesting a need for more outreach to raise awareness.

Meanwhile, a little over one third of Chicago residents reported drinking bottled water as their main source of drinking water.

But even bottled water could contain lead. The US Food and Drug Administration (FDA) has set a limit for lead in bottled water to five parts per billion. The FDA threshold for taking action in public drinking water systems is 15 parts per billion. But the American Academy of Pediatrics states that no amount of lead in drinking water is considered safe for drinking. 

Mr. Huynh also pointed out that not all home water filters remove lead. Only devices that meet National Sanitation Foundation 53 standards are certified for lead removal. Consumers should verify that the filter package specifically lists the device as certified for removing contaminant lead.
 

Lead-tainted Cinnamon 

Last fall, the North Carolina Department of Health and Human Services identified several children with elevated levels of lead who had consumed WanaBana Apple Cinnamon Fruit Puree pouches.

An investigation by the FDA identified additional brands containing lead and issued a recall of applesauce pouches sold by retailers like Dollar Tree and Amazon.

According to the US Centers for Disease Control and Prevention, nearly 500 children were affected by the tainted applesauce. The FDA traced the source of the lead to cinnamon from a supplier in Ecuador.

An FDA spokesperson told this news organization the episode appears to have resulted from “economically motivated adulteration,” which occurs when a manufacturer leaves out or substitutes a valuable ingredient or part of a food. In the case of spices, lead may be added as a coloring agent or to increase the product weight.

“When we look at domestically made products from large, reputable companies, in general, they do a pretty good job of following safe product guidelines and regulations,” said Kevin Osterhoudt, MD, professor of pediatrics at the Perelman School of Medicine at the University of Pennsylvania in Philadelphia. “But when we use third-party sellers and we import things from other countries that aren’t regulated as closely, we certainly take a lot more risk in the products that we receive.”

While the Food Safety Modernization Act of 2011 aimed to improve agency’s capacity to manage the ever-rising volume of food produced domestically and imported from overseas, the funding has stayed flat while the volume of inspections has increased. In the early 1990s, the number of shipments screened by the agency numbered in the thousands annually. Last year the FDA screened 15 million shipments from more than 200 countries, according to the agency.

Prompted by the finding of lead in applesauce, the FDA began a wider investigation into ground cinnamon by sampling the product from discount retail stores. It recalled an additional six brands of cinnamon sold in the United States containing lead.

Dr. Osterhoudt’s message to families who think their child might have been exposed to a contaminated product is to dispose of it as directed by FDA and CDC guidelines. 

In Philadelphia, where Dr. Osterhoudt practices as an emergency room physician, baseline rates of childhood lead poisoning are already high, so he advises families to “do a larger inventory of all the source potential sources of lead in their life and to reduce all the exposures as low as possible.” 

He also advises parents that a nutritious diet high in calcium and iron can protect their children from the deleterious effects of lead.
 

Current Standards for Lead Screening and Testing

Lead is ubiquitous. The common routes of exposure to humans include use of fossil fuels such as leaded gasoline, some types of industrial facilities, and past use of lead-based paint in homes. In addition to spices, lead has been found in a wide variety of products such as toys, jewelry, antiques, cosmetics, and dietary supplements imported from other countries.

Noah Buncher, DO, is a primary care pediatrician in South Philadelphia at Children’s Hospital of Pennsylvania and the former director of a lead clinic in Boston that provides care for children with lead poisoning. He follows guidelines from the American Academy of Pediatrics that define an elevated BLL as ≥ 3.5 µg/dL. The guidelines recommend screening children for lead exposures during well child visits starting at age 6 months up to 6 years and obtaining a BLL if risks for lead exposure are present. 

Dr. Buncher starts with a basic environmental history that covers items like the age, condition, zip code of home, parental occupations, or hobbies that might result in exposing family members to lead, and if another child in the home has a history of elevated BLLs. 

But a careful history for potential lead exposures can be time-consuming. 

“There’s a lot to cover in a routine well child visit,” Dr. Buncher said. “We have maybe 15-20 minutes to cover a lot.” 

Clinics also vary on whether lead screening questions are put into workflows in the electronic medical record. Although parents can complete a written questionnaire about possible lead exposures, they may have difficulty answering questions about the age of their home or not know whether their occupation is high risk.

Transportation to a clinic is often a barrier for families, and sometimes patients must travel to a separate lab to be tested for lead. 

Dr. Buncher also pointed to the patchwork of local and state requirements that can lead to confusion among providers. Massachusetts, where he formerly practiced, has a universal requirement to test all children at ages 1, 2, and 3 years. But in Pennsylvania, screening laws vary from county to county. 

“Pennsylvania should implement universal screening recommendations for all kids under 6 regardless of what county you live in,” Dr. Buncher said.
 

Protective Measures 

Alan Woolf, MD, a professor of pediatrics at Harvard Medical School, Boston, Massachusetts, and director of the Pediatric Environmental Health Center at Boston Children’s Hospital, has a few ideas about how providers can step up their lead game, including partnering with their local health department. 

The CDC funds Childhood Lead Poisoning Prevention Programs based in state and local health departments to work with clinicians to improve rates of blood lead testing, monitor the prevalence of lead in their jurisdictions, and ensure that a system of referral is available for treatment and lead remediation services in the home.

Dr. Woolf also suggested that clinicians refer patients under age 3 years with high BLLs to their local Early Intervention Program. 

“They’ll assess their child’s development, their speech, their motor skills, their social skills, and if they qualify, it’s free,” Dr. Woolf said. 

He cited research showing children with elevated lead levels who received early intervention services performed better in grade school than equally exposed children who did not access similar services.

Another key strategy for pediatric clinicians is to learn local or state regulations for testing children for lead and how to access lead surveillance data in their practice area. Children who reside in high-risk areas are automatic candidates for screening. 

Dr. Woolf pointed out that big cities are not the only localities with lead in the drinking water. If families are drawing water from their own well, they should collect that water annually to have it tested for lead and microbes.

At the clinic-wide level, Dr. Woolf recommends the use of blood lead testing as a quality improvement measure. For example, Akron Children’s Hospital developed a quality improvement initiative using a clinical decision support tool to raise screening rates in their network of 30 clinics. One year after beginning the project, lead screenings during 12-month well visits increased from 71% to 96%. 

“What we’re interested in as pediatric health professionals is eliminating all background sources of lead in a child’s environment,” Dr. Woolf said. “Whether that’s applesauce pouches, whether that’s lead-containing paint, lead in water, lead in spices, or lead in imported pottery or cookware — there are just a tremendous number of sources of lead that we can do something about.”

None of the subjects reported financial conflicts of interest.

A former pediatrician, Dr. Thomas is a freelance science writer living in Portland, Oregon.

A version of this article appeared on Medscape.com.

Experts say pediatricians and primary care clinicians should do more to prevent the toxic effects of lead in their young patients following a 2023 outbreak of elevated levels of lead in children associated with consumption of contaminated applesauce.

Federal legislation in the 1970s eliminated lead from gasoline, paints, and other consumer products, and resulted in significantly reduced blood lead levels (BLLs) in children throughout the United States.

But recently published studies highlight persistent issues with lead in drinking water and consumer products, suggesting that the fight is not over.
 

It’s in the Water

In 2014 the city of Flint, Michigan, changed its water supply and high levels of lead were later found in the municipal water supply.

Effects of that crisis still plague the city today. An initial study found that elevated BLLs had doubled among children between 2013 and 2015.

Lead exposure in young children is associated with several negative outcomes, including decreased cognitive ability, brain volume, and social mobility, and increased anxiety/depression and impulsivity, and higher rates of criminal offenses later in life. 

Many other water systems still contain lead pipes, despite a 1986 ban by the US Environmental Protection Agency on using them for installing or repairing public water systems. The mayor of Chicago announced a plan to start replacing lead service lines in 2020; however, 400,000 households are still served by these pipes, the most in the nation.

Benjamin Huynh, a native of Chicago, was curious about the impact of all those lead service lines. Now an assistant professor in the Department of Environmental Health and Engineering at Johns Hopkins University in Baltimore, Maryland, he and his colleagues researched how many children under the age of 6 years were exposed to contaminated water.

The results showed that lead contamination of water is widespread. 

“We’re estimating that 68% of kids under the age of 6 in Chicago were exposed to lead-contaminated drinking water,” Mr. Huynh said. 

He added that residents in predominantly Black and Latino neighborhoods had the highest risk for lead contamination in their water, but children living on these blocks were less likely to get tested, suggesting a need for more outreach to raise awareness.

Meanwhile, a little over one third of Chicago residents reported drinking bottled water as their main source of drinking water.

But even bottled water could contain lead. The US Food and Drug Administration (FDA) has set a limit for lead in bottled water to five parts per billion. The FDA threshold for taking action in public drinking water systems is 15 parts per billion. But the American Academy of Pediatrics states that no amount of lead in drinking water is considered safe for drinking. 

Mr. Huynh also pointed out that not all home water filters remove lead. Only devices that meet National Sanitation Foundation 53 standards are certified for lead removal. Consumers should verify that the filter package specifically lists the device as certified for removing contaminant lead.
 

Lead-tainted Cinnamon 

Last fall, the North Carolina Department of Health and Human Services identified several children with elevated levels of lead who had consumed WanaBana Apple Cinnamon Fruit Puree pouches.

An investigation by the FDA identified additional brands containing lead and issued a recall of applesauce pouches sold by retailers like Dollar Tree and Amazon.

According to the US Centers for Disease Control and Prevention, nearly 500 children were affected by the tainted applesauce. The FDA traced the source of the lead to cinnamon from a supplier in Ecuador.

An FDA spokesperson told this news organization the episode appears to have resulted from “economically motivated adulteration,” which occurs when a manufacturer leaves out or substitutes a valuable ingredient or part of a food. In the case of spices, lead may be added as a coloring agent or to increase the product weight.

“When we look at domestically made products from large, reputable companies, in general, they do a pretty good job of following safe product guidelines and regulations,” said Kevin Osterhoudt, MD, professor of pediatrics at the Perelman School of Medicine at the University of Pennsylvania in Philadelphia. “But when we use third-party sellers and we import things from other countries that aren’t regulated as closely, we certainly take a lot more risk in the products that we receive.”

While the Food Safety Modernization Act of 2011 aimed to improve agency’s capacity to manage the ever-rising volume of food produced domestically and imported from overseas, the funding has stayed flat while the volume of inspections has increased. In the early 1990s, the number of shipments screened by the agency numbered in the thousands annually. Last year the FDA screened 15 million shipments from more than 200 countries, according to the agency.

Prompted by the finding of lead in applesauce, the FDA began a wider investigation into ground cinnamon by sampling the product from discount retail stores. It recalled an additional six brands of cinnamon sold in the United States containing lead.

Dr. Osterhoudt’s message to families who think their child might have been exposed to a contaminated product is to dispose of it as directed by FDA and CDC guidelines. 

In Philadelphia, where Dr. Osterhoudt practices as an emergency room physician, baseline rates of childhood lead poisoning are already high, so he advises families to “do a larger inventory of all the source potential sources of lead in their life and to reduce all the exposures as low as possible.” 

He also advises parents that a nutritious diet high in calcium and iron can protect their children from the deleterious effects of lead.
 

Current Standards for Lead Screening and Testing

Lead is ubiquitous. The common routes of exposure to humans include use of fossil fuels such as leaded gasoline, some types of industrial facilities, and past use of lead-based paint in homes. In addition to spices, lead has been found in a wide variety of products such as toys, jewelry, antiques, cosmetics, and dietary supplements imported from other countries.

Noah Buncher, DO, is a primary care pediatrician in South Philadelphia at Children’s Hospital of Pennsylvania and the former director of a lead clinic in Boston that provides care for children with lead poisoning. He follows guidelines from the American Academy of Pediatrics that define an elevated BLL as ≥ 3.5 µg/dL. The guidelines recommend screening children for lead exposures during well child visits starting at age 6 months up to 6 years and obtaining a BLL if risks for lead exposure are present. 

Dr. Buncher starts with a basic environmental history that covers items like the age, condition, zip code of home, parental occupations, or hobbies that might result in exposing family members to lead, and if another child in the home has a history of elevated BLLs. 

But a careful history for potential lead exposures can be time-consuming. 

“There’s a lot to cover in a routine well child visit,” Dr. Buncher said. “We have maybe 15-20 minutes to cover a lot.” 

Clinics also vary on whether lead screening questions are put into workflows in the electronic medical record. Although parents can complete a written questionnaire about possible lead exposures, they may have difficulty answering questions about the age of their home or not know whether their occupation is high risk.

Transportation to a clinic is often a barrier for families, and sometimes patients must travel to a separate lab to be tested for lead. 

Dr. Buncher also pointed to the patchwork of local and state requirements that can lead to confusion among providers. Massachusetts, where he formerly practiced, has a universal requirement to test all children at ages 1, 2, and 3 years. But in Pennsylvania, screening laws vary from county to county. 

“Pennsylvania should implement universal screening recommendations for all kids under 6 regardless of what county you live in,” Dr. Buncher said.
 

Protective Measures 

Alan Woolf, MD, a professor of pediatrics at Harvard Medical School, Boston, Massachusetts, and director of the Pediatric Environmental Health Center at Boston Children’s Hospital, has a few ideas about how providers can step up their lead game, including partnering with their local health department. 

The CDC funds Childhood Lead Poisoning Prevention Programs based in state and local health departments to work with clinicians to improve rates of blood lead testing, monitor the prevalence of lead in their jurisdictions, and ensure that a system of referral is available for treatment and lead remediation services in the home.

Dr. Woolf also suggested that clinicians refer patients under age 3 years with high BLLs to their local Early Intervention Program. 

“They’ll assess their child’s development, their speech, their motor skills, their social skills, and if they qualify, it’s free,” Dr. Woolf said. 

He cited research showing children with elevated lead levels who received early intervention services performed better in grade school than equally exposed children who did not access similar services.

Another key strategy for pediatric clinicians is to learn local or state regulations for testing children for lead and how to access lead surveillance data in their practice area. Children who reside in high-risk areas are automatic candidates for screening. 

Dr. Woolf pointed out that big cities are not the only localities with lead in the drinking water. If families are drawing water from their own well, they should collect that water annually to have it tested for lead and microbes.

At the clinic-wide level, Dr. Woolf recommends the use of blood lead testing as a quality improvement measure. For example, Akron Children’s Hospital developed a quality improvement initiative using a clinical decision support tool to raise screening rates in their network of 30 clinics. One year after beginning the project, lead screenings during 12-month well visits increased from 71% to 96%. 

“What we’re interested in as pediatric health professionals is eliminating all background sources of lead in a child’s environment,” Dr. Woolf said. “Whether that’s applesauce pouches, whether that’s lead-containing paint, lead in water, lead in spices, or lead in imported pottery or cookware — there are just a tremendous number of sources of lead that we can do something about.”

None of the subjects reported financial conflicts of interest.

A former pediatrician, Dr. Thomas is a freelance science writer living in Portland, Oregon.

A version of this article appeared on Medscape.com.