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MDedge conference coverage features onsite reporting of the latest study results and expert perspectives from leading researchers.
A Finger-Prick Test for Alzheimer’s Disease?
In a pilot study, researchers found a good correlation of p-tau217 levels from blood obtained via standard venous sampling and from a single finger prick.
“We see the potential that capillary p-tau217 from dried blood spots could overcome the limitations of standard venous collection of being invasive, dependent on centrifuges and ultra-low temperature freezers, and also requiring less volume than standard plasma analysis,” said lead investigator Hanna Huber, PhD, Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Sweden.
The findings were presented at the 17th Clinical Trials on Alzheimer’s Disease (CTAD) conference.
Strong Link Between Venous and Capillary Samples
p-tau217 has emerged as the most effective blood test to identify Alzheimer’s disease. However, traditional venous blood sampling requires certain infrastructure and immediate processing. Increased and simplified access to this blood biomarker could be crucial for early diagnosis, proper patient management, and prompt initiation of disease-modifying treatments.
The DROP-AD project is investigating the diagnostic performance of finger-prick collection to accurately measure p-tau217. In the current study, the research team obtained paired venous blood and capillary blood samples from 206 adults (mean age, 71.8 years; 59% women), with or without cognitive impairment, from five European centers. A subset of participants provided a second finger-prick sample collected without any supervision.
The capillary blood samples were obtained via a single finger prick, and then single blood drops were applied to a dried plasma spot (DPS) card, which was then shipped to a lab (without temperature control or cooling) for p-tau217 measurement. Cerebrospinal fluid biomarkers were available for a subset of individuals.
Throughout the entire study population, there was a “very convincing correlation” between p-tau217 levels from capillary DPS and venous plasma, Huber told conference attendees.
Additionally, capillary DPS p-tau217 levels were able to discriminate amyloid-positive from amyloid-negative individuals, with levels of this biomarker increasing in a stepwise fashion, “from cognitively unimpaired individuals to individuals with mild cognitive impairment and, finally, to dementia patients,” Huber said.
Of note, capillary p-tau217 levels from DPS samples that were collected by research staff did not differ from unsupervised self-collected samples.
What about the stability of the samples? Capillary DPS p-tau-217 is “stable over 2 weeks at room temperature,” Huber said.
Ready for Prime Time?
Preliminary data from the DROP-AD project highlight the potential of using finger-prick blood collection to identify neurofilament light (NfL) and glial fibrillary acidic protein (GFAP), two other Alzheimer’s disease biomarkers.
“We think that capillary p-tau217, but also other biomarkers, could be a widely accessible and cheap alternative for clinical practice and clinical trials in individuals with cognitive decline if the results are confirmed in longitudinal and home-sampling cohorts,” Huber concluded.
“Measuring biomarkers by a simple finger prick could facilitate regular and autonomous sampling at home, which would be particularly useful in remote and rural settings,” she noted.
The findings in this study confirm and extend earlier findings that the study team reported last year at the Alzheimer’s Association International Conference (AAIC).
“The data shared at CTAD 2024, along with the related material previously presented at AAIC 2023, reporting on a ‘finger prick’ blood test approach is interesting and emerging work but not yet ready for clinical use,” said Rebecca M. Edelmayer, PhD, Alzheimer’s Association vice president of scientific engagement.
“That said, the idea of a highly accessible and scalable tool that can aid in easier and more equitable diagnosis would be welcomed by researchers, clinicians, and individuals and families affected by Alzheimer’s disease and all other dementias,” Edelmayer said.
“This finger-prick blood testing technology for Alzheimer’s biomarkers still has to be validated more broadly, but it is very promising. Advancements in technology and practice demonstrate the simplicity, transportability, and diagnostic value of blood-based biomarkers for Alzheimer’s,” she added.
The Alzheimer’s Association is currently conducting a systematic review of the evidence and preparing clinical practice guidelines on blood-based biomarker tests for specialized healthcare settings, with publications, clinical resources, and tools anticipated in 2025, Edelmayer noted.
The study had no commercial funding. Huber and Edelmayer report no relevant conflicts of interest.
A version of this article appeared on Medscape.com.
In a pilot study, researchers found a good correlation of p-tau217 levels from blood obtained via standard venous sampling and from a single finger prick.
“We see the potential that capillary p-tau217 from dried blood spots could overcome the limitations of standard venous collection of being invasive, dependent on centrifuges and ultra-low temperature freezers, and also requiring less volume than standard plasma analysis,” said lead investigator Hanna Huber, PhD, Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Sweden.
The findings were presented at the 17th Clinical Trials on Alzheimer’s Disease (CTAD) conference.
Strong Link Between Venous and Capillary Samples
p-tau217 has emerged as the most effective blood test to identify Alzheimer’s disease. However, traditional venous blood sampling requires certain infrastructure and immediate processing. Increased and simplified access to this blood biomarker could be crucial for early diagnosis, proper patient management, and prompt initiation of disease-modifying treatments.
The DROP-AD project is investigating the diagnostic performance of finger-prick collection to accurately measure p-tau217. In the current study, the research team obtained paired venous blood and capillary blood samples from 206 adults (mean age, 71.8 years; 59% women), with or without cognitive impairment, from five European centers. A subset of participants provided a second finger-prick sample collected without any supervision.
The capillary blood samples were obtained via a single finger prick, and then single blood drops were applied to a dried plasma spot (DPS) card, which was then shipped to a lab (without temperature control or cooling) for p-tau217 measurement. Cerebrospinal fluid biomarkers were available for a subset of individuals.
Throughout the entire study population, there was a “very convincing correlation” between p-tau217 levels from capillary DPS and venous plasma, Huber told conference attendees.
Additionally, capillary DPS p-tau217 levels were able to discriminate amyloid-positive from amyloid-negative individuals, with levels of this biomarker increasing in a stepwise fashion, “from cognitively unimpaired individuals to individuals with mild cognitive impairment and, finally, to dementia patients,” Huber said.
Of note, capillary p-tau217 levels from DPS samples that were collected by research staff did not differ from unsupervised self-collected samples.
What about the stability of the samples? Capillary DPS p-tau-217 is “stable over 2 weeks at room temperature,” Huber said.
Ready for Prime Time?
Preliminary data from the DROP-AD project highlight the potential of using finger-prick blood collection to identify neurofilament light (NfL) and glial fibrillary acidic protein (GFAP), two other Alzheimer’s disease biomarkers.
“We think that capillary p-tau217, but also other biomarkers, could be a widely accessible and cheap alternative for clinical practice and clinical trials in individuals with cognitive decline if the results are confirmed in longitudinal and home-sampling cohorts,” Huber concluded.
“Measuring biomarkers by a simple finger prick could facilitate regular and autonomous sampling at home, which would be particularly useful in remote and rural settings,” she noted.
The findings in this study confirm and extend earlier findings that the study team reported last year at the Alzheimer’s Association International Conference (AAIC).
“The data shared at CTAD 2024, along with the related material previously presented at AAIC 2023, reporting on a ‘finger prick’ blood test approach is interesting and emerging work but not yet ready for clinical use,” said Rebecca M. Edelmayer, PhD, Alzheimer’s Association vice president of scientific engagement.
“That said, the idea of a highly accessible and scalable tool that can aid in easier and more equitable diagnosis would be welcomed by researchers, clinicians, and individuals and families affected by Alzheimer’s disease and all other dementias,” Edelmayer said.
“This finger-prick blood testing technology for Alzheimer’s biomarkers still has to be validated more broadly, but it is very promising. Advancements in technology and practice demonstrate the simplicity, transportability, and diagnostic value of blood-based biomarkers for Alzheimer’s,” she added.
The Alzheimer’s Association is currently conducting a systematic review of the evidence and preparing clinical practice guidelines on blood-based biomarker tests for specialized healthcare settings, with publications, clinical resources, and tools anticipated in 2025, Edelmayer noted.
The study had no commercial funding. Huber and Edelmayer report no relevant conflicts of interest.
A version of this article appeared on Medscape.com.
In a pilot study, researchers found a good correlation of p-tau217 levels from blood obtained via standard venous sampling and from a single finger prick.
“We see the potential that capillary p-tau217 from dried blood spots could overcome the limitations of standard venous collection of being invasive, dependent on centrifuges and ultra-low temperature freezers, and also requiring less volume than standard plasma analysis,” said lead investigator Hanna Huber, PhD, Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Sweden.
The findings were presented at the 17th Clinical Trials on Alzheimer’s Disease (CTAD) conference.
Strong Link Between Venous and Capillary Samples
p-tau217 has emerged as the most effective blood test to identify Alzheimer’s disease. However, traditional venous blood sampling requires certain infrastructure and immediate processing. Increased and simplified access to this blood biomarker could be crucial for early diagnosis, proper patient management, and prompt initiation of disease-modifying treatments.
The DROP-AD project is investigating the diagnostic performance of finger-prick collection to accurately measure p-tau217. In the current study, the research team obtained paired venous blood and capillary blood samples from 206 adults (mean age, 71.8 years; 59% women), with or without cognitive impairment, from five European centers. A subset of participants provided a second finger-prick sample collected without any supervision.
The capillary blood samples were obtained via a single finger prick, and then single blood drops were applied to a dried plasma spot (DPS) card, which was then shipped to a lab (without temperature control or cooling) for p-tau217 measurement. Cerebrospinal fluid biomarkers were available for a subset of individuals.
Throughout the entire study population, there was a “very convincing correlation” between p-tau217 levels from capillary DPS and venous plasma, Huber told conference attendees.
Additionally, capillary DPS p-tau217 levels were able to discriminate amyloid-positive from amyloid-negative individuals, with levels of this biomarker increasing in a stepwise fashion, “from cognitively unimpaired individuals to individuals with mild cognitive impairment and, finally, to dementia patients,” Huber said.
Of note, capillary p-tau217 levels from DPS samples that were collected by research staff did not differ from unsupervised self-collected samples.
What about the stability of the samples? Capillary DPS p-tau-217 is “stable over 2 weeks at room temperature,” Huber said.
Ready for Prime Time?
Preliminary data from the DROP-AD project highlight the potential of using finger-prick blood collection to identify neurofilament light (NfL) and glial fibrillary acidic protein (GFAP), two other Alzheimer’s disease biomarkers.
“We think that capillary p-tau217, but also other biomarkers, could be a widely accessible and cheap alternative for clinical practice and clinical trials in individuals with cognitive decline if the results are confirmed in longitudinal and home-sampling cohorts,” Huber concluded.
“Measuring biomarkers by a simple finger prick could facilitate regular and autonomous sampling at home, which would be particularly useful in remote and rural settings,” she noted.
The findings in this study confirm and extend earlier findings that the study team reported last year at the Alzheimer’s Association International Conference (AAIC).
“The data shared at CTAD 2024, along with the related material previously presented at AAIC 2023, reporting on a ‘finger prick’ blood test approach is interesting and emerging work but not yet ready for clinical use,” said Rebecca M. Edelmayer, PhD, Alzheimer’s Association vice president of scientific engagement.
“That said, the idea of a highly accessible and scalable tool that can aid in easier and more equitable diagnosis would be welcomed by researchers, clinicians, and individuals and families affected by Alzheimer’s disease and all other dementias,” Edelmayer said.
“This finger-prick blood testing technology for Alzheimer’s biomarkers still has to be validated more broadly, but it is very promising. Advancements in technology and practice demonstrate the simplicity, transportability, and diagnostic value of blood-based biomarkers for Alzheimer’s,” she added.
The Alzheimer’s Association is currently conducting a systematic review of the evidence and preparing clinical practice guidelines on blood-based biomarker tests for specialized healthcare settings, with publications, clinical resources, and tools anticipated in 2025, Edelmayer noted.
The study had no commercial funding. Huber and Edelmayer report no relevant conflicts of interest.
A version of this article appeared on Medscape.com.
FROM CTAD 2024
Weight Loss Surgery, Obesity Drugs Achieve Similar Results but Have Different Safety Profiles
PHILADELPHIA — according to a meta-analysis comparing the efficacy and safety of the different treatment options.
However, tirzepatide, a long-acting glucose-dependent insulinotropic polypeptide (GIP) receptor agonist and glucagon-like peptide 1 receptor agonist (GLP-1 RA), produces comparable weight loss and has a favorable safety profile, reported principal investigator Jena Velji-Ibrahim, MD, MSc, from Prisma Health–Upstate/University of South Carolina School of Medicine in Greenville.
In addition, there was “no significant difference in percentage total body weight loss between tirzepatide when comparing it to one-anastomosis gastric bypass (OAGB), as well as laparoscopic sleeve gastrectomy,” she said.
All 11 interventions studied exerted weight loss effects, and side-effect profiles were also deemed largely favorable, particularly for endoscopic interventions, she added.
“When we compare bariatric surgery to bariatric endoscopy, endoscopic sleeve gastroplasty and transpyloric shuttle offer a minimally invasive alternative with good weight loss outcomes and fewer adverse events,” she said.
Velji-Ibrahim presented the findings at the annual meeting of the American College of Gastroenterology (ACG).
Comparing Weight Loss Interventions
Many of the studies comparing weight loss interventions to date have been limited by relatively small sample sizes, observational designs, and inconsistent results. This prompted Velji-Ibrahim and her colleagues to conduct what they believe to be the first-of-its-kind meta-analysis on this topic.
They began by conducting a systematic search of the literature to identify randomized controlled trials (RCTs) that compared the efficacy of Food and Drug Administration–approved bariatric surgeries, bariatric endoscopies, and medications — against each other or with placebo — in adults with a body mass index of 25-45, with or without concurrent type 2 diabetes.
A network meta-analysis was then performed to assess the various interventions’ impact on percentage total weight loss and side-effect profiles. P-scores were calculated to rank the treatments and identify the preferred interventions. The duration of therapy was 52 weeks.
In total, 34 eligible RCTs with 15,660 patients were included. Overall, the RCTs analyzed 11 weight loss treatments, including bariatric surgeries (four studies), bariatric endoscopies (three studies), and medications (four studies).
Specifically, the bariatric surgeries included RYGB, laparoscopic sleeve gastrectomy, OAGB, and laparoscopic adjustable gastric banding; bariatric endoscopies included endoscopic sleeve gastroplasty, transpyloric shuttle, and intragastric balloon; and medications included tirzepatide, semaglutide, and liraglutide.
Although all interventions were associated with reductions in percentage total weight loss compared with placebo, RYGB led to the greatest reductions (19.29%) and was ranked as the first preferred treatment (97% probability). It was followed in the rankings by OAGB, tirzepatide 15 mg, laparoscopic sleeve gastrectomy, and semaglutide 2.4 mg.
Tirzepatide 15 mg had a slightly lower percentage total weight loss (15.18%) but a favorable safety profile. There was no significant difference in percentage total weight loss between tirzepatide 15 mg and OAGB (mean difference, 2.97%) or laparoscopic sleeve gastrectomy (mean difference, 0.43%).
There was also no significant difference in percentage total weight loss between semaglutide 2.4 mg, compared with endoscopic sleeve gastroplasty and transpyloric shuttle.
Endoscopic sleeve, transpyloric shuttle, and intragastric balloon all resulted in weight loss > 5%.
When compared with bariatric surgery, “endoscopic interventions had a better side-effect profile, with no increased odds of mortality and intensive care needs,” Velji-Ibrahim said.
When it came to the medications, “the most common side effects were gastrointestinal in nature, which included nausea, vomiting, diarrhea, and constipation,” she said.
Combining, Rather Than Comparing, Therapies
Following the presentation, session co-moderator Shivangi T. Kothari, MD, assistant professor of medicine and associate director of endoscopy at the University of Rochester Medical Center in New York, shared her thoughts of what the future of obesity management research might look like.
It’s not just going to be about percentage total weight loss, she said, but about how well the effect is sustained following the intervention.
And we might move “away from comparing one modality to another” and instead study combination therapies, “which would be ideal,” said Kothari.
This was the focus of another meta-analysis presented at ACG 2024, in which Nihal Ijaz I. Khan, MD, and colleagues compared the efficacy of endoscopic bariatric treatment alone vs its combined use with GLP-1 RAs.
The researchers identified three retrospective studies with 266 patients, of whom 143 underwent endoscopic bariatric treatment alone (either endoscopic sleeve gastroplasty or intragastric balloon) and 123 had it combined with GLP-1 RAs, specifically liraglutide.
They reported that superior absolute weight loss was achieved in the group of patients receiving GLP-1 RAs in combination with endoscopic bariatric treatment. The standardized mean difference in body weight loss at treatment follow-up was 0.61 (P <.01).
“Further studies are required to evaluate the safety and adverse events comparing these two treatment modalities and to discover differences between comparing the two endoscopic options to various GLP-1 receptor agonists,” Khan noted.
Neither study had specific funding. Velji-Ibrahim and Khan reported no relevant financial relationships. Kothari reported serving as a consultant for Boston Scientific and Olympus, as well as serving as an advisory committee/board member for Castle Biosciences.
A version of this article first appeared on Medscape.com.
PHILADELPHIA — according to a meta-analysis comparing the efficacy and safety of the different treatment options.
However, tirzepatide, a long-acting glucose-dependent insulinotropic polypeptide (GIP) receptor agonist and glucagon-like peptide 1 receptor agonist (GLP-1 RA), produces comparable weight loss and has a favorable safety profile, reported principal investigator Jena Velji-Ibrahim, MD, MSc, from Prisma Health–Upstate/University of South Carolina School of Medicine in Greenville.
In addition, there was “no significant difference in percentage total body weight loss between tirzepatide when comparing it to one-anastomosis gastric bypass (OAGB), as well as laparoscopic sleeve gastrectomy,” she said.
All 11 interventions studied exerted weight loss effects, and side-effect profiles were also deemed largely favorable, particularly for endoscopic interventions, she added.
“When we compare bariatric surgery to bariatric endoscopy, endoscopic sleeve gastroplasty and transpyloric shuttle offer a minimally invasive alternative with good weight loss outcomes and fewer adverse events,” she said.
Velji-Ibrahim presented the findings at the annual meeting of the American College of Gastroenterology (ACG).
Comparing Weight Loss Interventions
Many of the studies comparing weight loss interventions to date have been limited by relatively small sample sizes, observational designs, and inconsistent results. This prompted Velji-Ibrahim and her colleagues to conduct what they believe to be the first-of-its-kind meta-analysis on this topic.
They began by conducting a systematic search of the literature to identify randomized controlled trials (RCTs) that compared the efficacy of Food and Drug Administration–approved bariatric surgeries, bariatric endoscopies, and medications — against each other or with placebo — in adults with a body mass index of 25-45, with or without concurrent type 2 diabetes.
A network meta-analysis was then performed to assess the various interventions’ impact on percentage total weight loss and side-effect profiles. P-scores were calculated to rank the treatments and identify the preferred interventions. The duration of therapy was 52 weeks.
In total, 34 eligible RCTs with 15,660 patients were included. Overall, the RCTs analyzed 11 weight loss treatments, including bariatric surgeries (four studies), bariatric endoscopies (three studies), and medications (four studies).
Specifically, the bariatric surgeries included RYGB, laparoscopic sleeve gastrectomy, OAGB, and laparoscopic adjustable gastric banding; bariatric endoscopies included endoscopic sleeve gastroplasty, transpyloric shuttle, and intragastric balloon; and medications included tirzepatide, semaglutide, and liraglutide.
Although all interventions were associated with reductions in percentage total weight loss compared with placebo, RYGB led to the greatest reductions (19.29%) and was ranked as the first preferred treatment (97% probability). It was followed in the rankings by OAGB, tirzepatide 15 mg, laparoscopic sleeve gastrectomy, and semaglutide 2.4 mg.
Tirzepatide 15 mg had a slightly lower percentage total weight loss (15.18%) but a favorable safety profile. There was no significant difference in percentage total weight loss between tirzepatide 15 mg and OAGB (mean difference, 2.97%) or laparoscopic sleeve gastrectomy (mean difference, 0.43%).
There was also no significant difference in percentage total weight loss between semaglutide 2.4 mg, compared with endoscopic sleeve gastroplasty and transpyloric shuttle.
Endoscopic sleeve, transpyloric shuttle, and intragastric balloon all resulted in weight loss > 5%.
When compared with bariatric surgery, “endoscopic interventions had a better side-effect profile, with no increased odds of mortality and intensive care needs,” Velji-Ibrahim said.
When it came to the medications, “the most common side effects were gastrointestinal in nature, which included nausea, vomiting, diarrhea, and constipation,” she said.
Combining, Rather Than Comparing, Therapies
Following the presentation, session co-moderator Shivangi T. Kothari, MD, assistant professor of medicine and associate director of endoscopy at the University of Rochester Medical Center in New York, shared her thoughts of what the future of obesity management research might look like.
It’s not just going to be about percentage total weight loss, she said, but about how well the effect is sustained following the intervention.
And we might move “away from comparing one modality to another” and instead study combination therapies, “which would be ideal,” said Kothari.
This was the focus of another meta-analysis presented at ACG 2024, in which Nihal Ijaz I. Khan, MD, and colleagues compared the efficacy of endoscopic bariatric treatment alone vs its combined use with GLP-1 RAs.
The researchers identified three retrospective studies with 266 patients, of whom 143 underwent endoscopic bariatric treatment alone (either endoscopic sleeve gastroplasty or intragastric balloon) and 123 had it combined with GLP-1 RAs, specifically liraglutide.
They reported that superior absolute weight loss was achieved in the group of patients receiving GLP-1 RAs in combination with endoscopic bariatric treatment. The standardized mean difference in body weight loss at treatment follow-up was 0.61 (P <.01).
“Further studies are required to evaluate the safety and adverse events comparing these two treatment modalities and to discover differences between comparing the two endoscopic options to various GLP-1 receptor agonists,” Khan noted.
Neither study had specific funding. Velji-Ibrahim and Khan reported no relevant financial relationships. Kothari reported serving as a consultant for Boston Scientific and Olympus, as well as serving as an advisory committee/board member for Castle Biosciences.
A version of this article first appeared on Medscape.com.
PHILADELPHIA — according to a meta-analysis comparing the efficacy and safety of the different treatment options.
However, tirzepatide, a long-acting glucose-dependent insulinotropic polypeptide (GIP) receptor agonist and glucagon-like peptide 1 receptor agonist (GLP-1 RA), produces comparable weight loss and has a favorable safety profile, reported principal investigator Jena Velji-Ibrahim, MD, MSc, from Prisma Health–Upstate/University of South Carolina School of Medicine in Greenville.
In addition, there was “no significant difference in percentage total body weight loss between tirzepatide when comparing it to one-anastomosis gastric bypass (OAGB), as well as laparoscopic sleeve gastrectomy,” she said.
All 11 interventions studied exerted weight loss effects, and side-effect profiles were also deemed largely favorable, particularly for endoscopic interventions, she added.
“When we compare bariatric surgery to bariatric endoscopy, endoscopic sleeve gastroplasty and transpyloric shuttle offer a minimally invasive alternative with good weight loss outcomes and fewer adverse events,” she said.
Velji-Ibrahim presented the findings at the annual meeting of the American College of Gastroenterology (ACG).
Comparing Weight Loss Interventions
Many of the studies comparing weight loss interventions to date have been limited by relatively small sample sizes, observational designs, and inconsistent results. This prompted Velji-Ibrahim and her colleagues to conduct what they believe to be the first-of-its-kind meta-analysis on this topic.
They began by conducting a systematic search of the literature to identify randomized controlled trials (RCTs) that compared the efficacy of Food and Drug Administration–approved bariatric surgeries, bariatric endoscopies, and medications — against each other or with placebo — in adults with a body mass index of 25-45, with or without concurrent type 2 diabetes.
A network meta-analysis was then performed to assess the various interventions’ impact on percentage total weight loss and side-effect profiles. P-scores were calculated to rank the treatments and identify the preferred interventions. The duration of therapy was 52 weeks.
In total, 34 eligible RCTs with 15,660 patients were included. Overall, the RCTs analyzed 11 weight loss treatments, including bariatric surgeries (four studies), bariatric endoscopies (three studies), and medications (four studies).
Specifically, the bariatric surgeries included RYGB, laparoscopic sleeve gastrectomy, OAGB, and laparoscopic adjustable gastric banding; bariatric endoscopies included endoscopic sleeve gastroplasty, transpyloric shuttle, and intragastric balloon; and medications included tirzepatide, semaglutide, and liraglutide.
Although all interventions were associated with reductions in percentage total weight loss compared with placebo, RYGB led to the greatest reductions (19.29%) and was ranked as the first preferred treatment (97% probability). It was followed in the rankings by OAGB, tirzepatide 15 mg, laparoscopic sleeve gastrectomy, and semaglutide 2.4 mg.
Tirzepatide 15 mg had a slightly lower percentage total weight loss (15.18%) but a favorable safety profile. There was no significant difference in percentage total weight loss between tirzepatide 15 mg and OAGB (mean difference, 2.97%) or laparoscopic sleeve gastrectomy (mean difference, 0.43%).
There was also no significant difference in percentage total weight loss between semaglutide 2.4 mg, compared with endoscopic sleeve gastroplasty and transpyloric shuttle.
Endoscopic sleeve, transpyloric shuttle, and intragastric balloon all resulted in weight loss > 5%.
When compared with bariatric surgery, “endoscopic interventions had a better side-effect profile, with no increased odds of mortality and intensive care needs,” Velji-Ibrahim said.
When it came to the medications, “the most common side effects were gastrointestinal in nature, which included nausea, vomiting, diarrhea, and constipation,” she said.
Combining, Rather Than Comparing, Therapies
Following the presentation, session co-moderator Shivangi T. Kothari, MD, assistant professor of medicine and associate director of endoscopy at the University of Rochester Medical Center in New York, shared her thoughts of what the future of obesity management research might look like.
It’s not just going to be about percentage total weight loss, she said, but about how well the effect is sustained following the intervention.
And we might move “away from comparing one modality to another” and instead study combination therapies, “which would be ideal,” said Kothari.
This was the focus of another meta-analysis presented at ACG 2024, in which Nihal Ijaz I. Khan, MD, and colleagues compared the efficacy of endoscopic bariatric treatment alone vs its combined use with GLP-1 RAs.
The researchers identified three retrospective studies with 266 patients, of whom 143 underwent endoscopic bariatric treatment alone (either endoscopic sleeve gastroplasty or intragastric balloon) and 123 had it combined with GLP-1 RAs, specifically liraglutide.
They reported that superior absolute weight loss was achieved in the group of patients receiving GLP-1 RAs in combination with endoscopic bariatric treatment. The standardized mean difference in body weight loss at treatment follow-up was 0.61 (P <.01).
“Further studies are required to evaluate the safety and adverse events comparing these two treatment modalities and to discover differences between comparing the two endoscopic options to various GLP-1 receptor agonists,” Khan noted.
Neither study had specific funding. Velji-Ibrahim and Khan reported no relevant financial relationships. Kothari reported serving as a consultant for Boston Scientific and Olympus, as well as serving as an advisory committee/board member for Castle Biosciences.
A version of this article first appeared on Medscape.com.
FROM ACG 2024
Weight Loss Drugs Don’t Reduce Oocyte Retrieval
The use of glucagon-like peptide 1 (GLP-1) agonists within a year had no apparent effect on the number of oocytes retrieved in controlled ovarian hyperstimulation (COH), based on data from 73 patients in a multicenter study.
Obesity rates continue to rise in women of reproductive age and many women are using GLP-1 agonists for weight loss, but data on the effect of these drugs on fertility treatments are lacking, said Victoria K. Lazarov, MD, of Icahn School of Medicine at Mount Sinai, New York City, in an abstract presented at the American Society for Reproductive Medicine (ASRM) 2024 scientific congress.
Clinical opinions regarding the use, duration, and discontinuation of GLP-1 agonists during fertility treatments are variable given the limited research, Lazarov noted in her abstract. More data are needed to standardize patient counseling.
Lazarov and colleagues reviewed data from patients who sought treatment at clinics affiliated with a national fertility network from 2005 to 2023 who also utilized a GLP-1 agonist within 1 year of COH.
The study population included 73 adult women; participants were divided into six groups based on the number of days without GLP-1 agonist use prior to retrieval (0-14, 15-30, 31-60, 61-90, 91-180, and 181-365 days). The primary outcome was oocyte yield following COH.
Overall, the mean oocyte yields were not significantly different across the six timing groups (14.4, 16.2, 16.8, 7.7, 13.8, and 15, respectively; P = .40).
In a secondary subgroup analysis, the researchers found an inverse relationship between oocyte yield and timing of GLP-1 agonist discontinuation in patients with body mass index (BMI) > 35. However, no changes in oocyte yield were observed in patients with BMIs in the normal or overweight range. Neither duration of GLP-1 agonist use or indication for use had a significant effect on oocyte yield across exposure group.
The findings were limited by several factors, including the relatively small study population, especially the small number of patients with obesity. “Additional investigation is needed to clarify potential effects of GLP-1 agonist use on aspiration risk during oocyte retrieval and embryo creation outcomes,” the researchers wrote in their abstract.
However, the results suggest that most women who use GLP-1 agonists experience no significant effects on oocyte retrieval and embryo creation, and that GLP-1 agonists may have a role in improving oocyte yield for obese patients, the researchers concluded.
Larger Studies Needed for Real Reassurance
“Infertility patients who are overweight have lower chances for conception and higher risks of pregnancy complications,” Mark Trolice, MD, professor at the University of Central Florida College of Medicine, Orlando, and founder/director of The IVF Center, Winter Park, Florida, said in an interview.
The use of GLP-1 agonists has dramatically increased given the medication’s effectiveness for weight loss, as well as its use to manage diabetes, but the use of GLP-1 agonists in pregnancy is not well known and current recommendations advise discontinuation of the medication for 6-8 weeks prior to conception, said Trolice, who was not involved in the study.
GLP-1 agonist use is associated with lowered blood glucose levels, Trolice said. “Additionally, the medication can delay gastric emptying and suppress appetite, both of which assist in weight management.”
The current study examined whether there was a difference in oocyte retrieval number in women based on days of discontinuation of GLP-1 agonists prior to the procedure, Trolice told this news organization. “Given the drug’s mechanism of action, there is no apparent biological influence that would impact oocyte yield. Consequently, the study outcome is not unexpected.”
The study purports potential reassurance that GLP-1 exposure, regardless of the duration of discontinuation, has no impact on egg retrieval number, said Trolice. However, “Based on the size of the study, to accept the findings as definitive would risk a type II statistical error.”
Two key areas for additional research are urgently needed, Trolice said, namely, the duration of time to discontinue GLP-1 agonists, if at all, prior to conception, and the discontinuation interval, if at all, prior to anesthesia to avoid airway complications.
The American Society of Anesthesiologists advises patients on daily dosing to consider holding GLP-1 agonists on the day of a procedure or surgery, and those on weekly dosing should consider discontinuing the medication 1 week before the procedure or surgery, Trolice noted.
The study received no outside funding. The researchers had no financial conflicts to disclose. Trolice had no financial conflicts to disclose and serves on the editorial advisory board of OB/GYN News.
A version of this article first appeared on Medscape.com.
The use of glucagon-like peptide 1 (GLP-1) agonists within a year had no apparent effect on the number of oocytes retrieved in controlled ovarian hyperstimulation (COH), based on data from 73 patients in a multicenter study.
Obesity rates continue to rise in women of reproductive age and many women are using GLP-1 agonists for weight loss, but data on the effect of these drugs on fertility treatments are lacking, said Victoria K. Lazarov, MD, of Icahn School of Medicine at Mount Sinai, New York City, in an abstract presented at the American Society for Reproductive Medicine (ASRM) 2024 scientific congress.
Clinical opinions regarding the use, duration, and discontinuation of GLP-1 agonists during fertility treatments are variable given the limited research, Lazarov noted in her abstract. More data are needed to standardize patient counseling.
Lazarov and colleagues reviewed data from patients who sought treatment at clinics affiliated with a national fertility network from 2005 to 2023 who also utilized a GLP-1 agonist within 1 year of COH.
The study population included 73 adult women; participants were divided into six groups based on the number of days without GLP-1 agonist use prior to retrieval (0-14, 15-30, 31-60, 61-90, 91-180, and 181-365 days). The primary outcome was oocyte yield following COH.
Overall, the mean oocyte yields were not significantly different across the six timing groups (14.4, 16.2, 16.8, 7.7, 13.8, and 15, respectively; P = .40).
In a secondary subgroup analysis, the researchers found an inverse relationship between oocyte yield and timing of GLP-1 agonist discontinuation in patients with body mass index (BMI) > 35. However, no changes in oocyte yield were observed in patients with BMIs in the normal or overweight range. Neither duration of GLP-1 agonist use or indication for use had a significant effect on oocyte yield across exposure group.
The findings were limited by several factors, including the relatively small study population, especially the small number of patients with obesity. “Additional investigation is needed to clarify potential effects of GLP-1 agonist use on aspiration risk during oocyte retrieval and embryo creation outcomes,” the researchers wrote in their abstract.
However, the results suggest that most women who use GLP-1 agonists experience no significant effects on oocyte retrieval and embryo creation, and that GLP-1 agonists may have a role in improving oocyte yield for obese patients, the researchers concluded.
Larger Studies Needed for Real Reassurance
“Infertility patients who are overweight have lower chances for conception and higher risks of pregnancy complications,” Mark Trolice, MD, professor at the University of Central Florida College of Medicine, Orlando, and founder/director of The IVF Center, Winter Park, Florida, said in an interview.
The use of GLP-1 agonists has dramatically increased given the medication’s effectiveness for weight loss, as well as its use to manage diabetes, but the use of GLP-1 agonists in pregnancy is not well known and current recommendations advise discontinuation of the medication for 6-8 weeks prior to conception, said Trolice, who was not involved in the study.
GLP-1 agonist use is associated with lowered blood glucose levels, Trolice said. “Additionally, the medication can delay gastric emptying and suppress appetite, both of which assist in weight management.”
The current study examined whether there was a difference in oocyte retrieval number in women based on days of discontinuation of GLP-1 agonists prior to the procedure, Trolice told this news organization. “Given the drug’s mechanism of action, there is no apparent biological influence that would impact oocyte yield. Consequently, the study outcome is not unexpected.”
The study purports potential reassurance that GLP-1 exposure, regardless of the duration of discontinuation, has no impact on egg retrieval number, said Trolice. However, “Based on the size of the study, to accept the findings as definitive would risk a type II statistical error.”
Two key areas for additional research are urgently needed, Trolice said, namely, the duration of time to discontinue GLP-1 agonists, if at all, prior to conception, and the discontinuation interval, if at all, prior to anesthesia to avoid airway complications.
The American Society of Anesthesiologists advises patients on daily dosing to consider holding GLP-1 agonists on the day of a procedure or surgery, and those on weekly dosing should consider discontinuing the medication 1 week before the procedure or surgery, Trolice noted.
The study received no outside funding. The researchers had no financial conflicts to disclose. Trolice had no financial conflicts to disclose and serves on the editorial advisory board of OB/GYN News.
A version of this article first appeared on Medscape.com.
The use of glucagon-like peptide 1 (GLP-1) agonists within a year had no apparent effect on the number of oocytes retrieved in controlled ovarian hyperstimulation (COH), based on data from 73 patients in a multicenter study.
Obesity rates continue to rise in women of reproductive age and many women are using GLP-1 agonists for weight loss, but data on the effect of these drugs on fertility treatments are lacking, said Victoria K. Lazarov, MD, of Icahn School of Medicine at Mount Sinai, New York City, in an abstract presented at the American Society for Reproductive Medicine (ASRM) 2024 scientific congress.
Clinical opinions regarding the use, duration, and discontinuation of GLP-1 agonists during fertility treatments are variable given the limited research, Lazarov noted in her abstract. More data are needed to standardize patient counseling.
Lazarov and colleagues reviewed data from patients who sought treatment at clinics affiliated with a national fertility network from 2005 to 2023 who also utilized a GLP-1 agonist within 1 year of COH.
The study population included 73 adult women; participants were divided into six groups based on the number of days without GLP-1 agonist use prior to retrieval (0-14, 15-30, 31-60, 61-90, 91-180, and 181-365 days). The primary outcome was oocyte yield following COH.
Overall, the mean oocyte yields were not significantly different across the six timing groups (14.4, 16.2, 16.8, 7.7, 13.8, and 15, respectively; P = .40).
In a secondary subgroup analysis, the researchers found an inverse relationship between oocyte yield and timing of GLP-1 agonist discontinuation in patients with body mass index (BMI) > 35. However, no changes in oocyte yield were observed in patients with BMIs in the normal or overweight range. Neither duration of GLP-1 agonist use or indication for use had a significant effect on oocyte yield across exposure group.
The findings were limited by several factors, including the relatively small study population, especially the small number of patients with obesity. “Additional investigation is needed to clarify potential effects of GLP-1 agonist use on aspiration risk during oocyte retrieval and embryo creation outcomes,” the researchers wrote in their abstract.
However, the results suggest that most women who use GLP-1 agonists experience no significant effects on oocyte retrieval and embryo creation, and that GLP-1 agonists may have a role in improving oocyte yield for obese patients, the researchers concluded.
Larger Studies Needed for Real Reassurance
“Infertility patients who are overweight have lower chances for conception and higher risks of pregnancy complications,” Mark Trolice, MD, professor at the University of Central Florida College of Medicine, Orlando, and founder/director of The IVF Center, Winter Park, Florida, said in an interview.
The use of GLP-1 agonists has dramatically increased given the medication’s effectiveness for weight loss, as well as its use to manage diabetes, but the use of GLP-1 agonists in pregnancy is not well known and current recommendations advise discontinuation of the medication for 6-8 weeks prior to conception, said Trolice, who was not involved in the study.
GLP-1 agonist use is associated with lowered blood glucose levels, Trolice said. “Additionally, the medication can delay gastric emptying and suppress appetite, both of which assist in weight management.”
The current study examined whether there was a difference in oocyte retrieval number in women based on days of discontinuation of GLP-1 agonists prior to the procedure, Trolice told this news organization. “Given the drug’s mechanism of action, there is no apparent biological influence that would impact oocyte yield. Consequently, the study outcome is not unexpected.”
The study purports potential reassurance that GLP-1 exposure, regardless of the duration of discontinuation, has no impact on egg retrieval number, said Trolice. However, “Based on the size of the study, to accept the findings as definitive would risk a type II statistical error.”
Two key areas for additional research are urgently needed, Trolice said, namely, the duration of time to discontinue GLP-1 agonists, if at all, prior to conception, and the discontinuation interval, if at all, prior to anesthesia to avoid airway complications.
The American Society of Anesthesiologists advises patients on daily dosing to consider holding GLP-1 agonists on the day of a procedure or surgery, and those on weekly dosing should consider discontinuing the medication 1 week before the procedure or surgery, Trolice noted.
The study received no outside funding. The researchers had no financial conflicts to disclose. Trolice had no financial conflicts to disclose and serves on the editorial advisory board of OB/GYN News.
A version of this article first appeared on Medscape.com.
FROM ASRM 2024
Primary Care Physicians Underutilize Nonantibiotic Prophylaxis for Recurrent UTIs
While primary care physicians are generally comfortable prescribing vaginal estrogen therapy for recurrent urinary tract infections (UTIs), other nonantibiotic prophylactic options remain significantly underutilized, according to new research that highlights a crucial gap in antibiotic stewardship practices among primary care physicians.
UTIs are the most common bacterial infection in women of all ages, and an estimated 30%-40% of women will experience reinfection within 6 months. Recurrent UTI is typically defined as two or more infections within 6 months or a greater number of infections within a year, according to the American Academy of Family Physicians.
Antibiotics are the first line of defense in preventing and treating recurrent UTIs, but repeated and prolonged use could lead to antibiotic resistance.
Researchers at the University of North Carolina surveyed 40 primary care physicians at one academic medical center and found that 96% of primary care physicians prescribe vaginal estrogen therapy for recurrent UTI prevention, with 58% doing so “often.” Estrogen deficiency and urinary retention are strong contributors to infection.
However, 78% of physicians surveyed said they had never prescribed methenamine hippurate, and 85% said they had never prescribed D-mannose.
Physicians with specialized training in menopausal care felt more at ease prescribing vaginal estrogen therapy to patients with complex medical histories, such as those with a family history of breast cancer or endometrial cancer. This suggests that enhanced education could play a vital role in increasing comfort levels among general practitioners, said Lauren Tholemeier, MD, a urogynecology fellow at the University of North Carolina at Chapel Hill.
“Primary care physicians are the front line of managing patients with recurrent UTI,” said Tholemeier.
“There’s an opportunity for further education on, and even awareness of, methenamine hippurate and D-mannose as an option that has data behind it and can be included as a tool” for patient care, she said.
Indeed, physicians who saw six or more recurrent patients with UTI each month were more likely to prescribe methenamine hippurate, the study found, suggesting that familiarity with recurrent UTI cases can lead to greater confidence in employing alternative prophylactic strategies.
Tholemeier presented her research at the American Urogynecologic Society’s PFD Week in Washington, DC.
Expanding physician knowledge and utilization of all available nonantibiotic therapies can help them better care for patients who don’t necessarily have access to a subspecialist, Tholemeier said.
According to the American Urogynecologic Society’s best practice guidelines, there is limited evidence supporting routine use of D-mannose to prevent recurrent UTI. Methenamine hippurate, however, may be effective for short-term UTI prevention, according to the group.
By broadening the use of vaginal estrogen therapy, methenamine hippurate, and D-mannose, primary care physicians can help reduce reliance on antibiotics for recurrent UTI prevention — a practice that may contribute to growing antibiotic resistance, said Tholemeier.
“The end goal isn’t going to be to say that we should never prescribe antibiotics for UTI infection,” said Tholemeier, adding that, in some cases, physicians can consider using these other medications in conjunction with antibiotics.
“But it’s knowing they [clinicians] have some other options in their toolbox,” she said.
A version of this article first appeared on Medscape.com.
While primary care physicians are generally comfortable prescribing vaginal estrogen therapy for recurrent urinary tract infections (UTIs), other nonantibiotic prophylactic options remain significantly underutilized, according to new research that highlights a crucial gap in antibiotic stewardship practices among primary care physicians.
UTIs are the most common bacterial infection in women of all ages, and an estimated 30%-40% of women will experience reinfection within 6 months. Recurrent UTI is typically defined as two or more infections within 6 months or a greater number of infections within a year, according to the American Academy of Family Physicians.
Antibiotics are the first line of defense in preventing and treating recurrent UTIs, but repeated and prolonged use could lead to antibiotic resistance.
Researchers at the University of North Carolina surveyed 40 primary care physicians at one academic medical center and found that 96% of primary care physicians prescribe vaginal estrogen therapy for recurrent UTI prevention, with 58% doing so “often.” Estrogen deficiency and urinary retention are strong contributors to infection.
However, 78% of physicians surveyed said they had never prescribed methenamine hippurate, and 85% said they had never prescribed D-mannose.
Physicians with specialized training in menopausal care felt more at ease prescribing vaginal estrogen therapy to patients with complex medical histories, such as those with a family history of breast cancer or endometrial cancer. This suggests that enhanced education could play a vital role in increasing comfort levels among general practitioners, said Lauren Tholemeier, MD, a urogynecology fellow at the University of North Carolina at Chapel Hill.
“Primary care physicians are the front line of managing patients with recurrent UTI,” said Tholemeier.
“There’s an opportunity for further education on, and even awareness of, methenamine hippurate and D-mannose as an option that has data behind it and can be included as a tool” for patient care, she said.
Indeed, physicians who saw six or more recurrent patients with UTI each month were more likely to prescribe methenamine hippurate, the study found, suggesting that familiarity with recurrent UTI cases can lead to greater confidence in employing alternative prophylactic strategies.
Tholemeier presented her research at the American Urogynecologic Society’s PFD Week in Washington, DC.
Expanding physician knowledge and utilization of all available nonantibiotic therapies can help them better care for patients who don’t necessarily have access to a subspecialist, Tholemeier said.
According to the American Urogynecologic Society’s best practice guidelines, there is limited evidence supporting routine use of D-mannose to prevent recurrent UTI. Methenamine hippurate, however, may be effective for short-term UTI prevention, according to the group.
By broadening the use of vaginal estrogen therapy, methenamine hippurate, and D-mannose, primary care physicians can help reduce reliance on antibiotics for recurrent UTI prevention — a practice that may contribute to growing antibiotic resistance, said Tholemeier.
“The end goal isn’t going to be to say that we should never prescribe antibiotics for UTI infection,” said Tholemeier, adding that, in some cases, physicians can consider using these other medications in conjunction with antibiotics.
“But it’s knowing they [clinicians] have some other options in their toolbox,” she said.
A version of this article first appeared on Medscape.com.
While primary care physicians are generally comfortable prescribing vaginal estrogen therapy for recurrent urinary tract infections (UTIs), other nonantibiotic prophylactic options remain significantly underutilized, according to new research that highlights a crucial gap in antibiotic stewardship practices among primary care physicians.
UTIs are the most common bacterial infection in women of all ages, and an estimated 30%-40% of women will experience reinfection within 6 months. Recurrent UTI is typically defined as two or more infections within 6 months or a greater number of infections within a year, according to the American Academy of Family Physicians.
Antibiotics are the first line of defense in preventing and treating recurrent UTIs, but repeated and prolonged use could lead to antibiotic resistance.
Researchers at the University of North Carolina surveyed 40 primary care physicians at one academic medical center and found that 96% of primary care physicians prescribe vaginal estrogen therapy for recurrent UTI prevention, with 58% doing so “often.” Estrogen deficiency and urinary retention are strong contributors to infection.
However, 78% of physicians surveyed said they had never prescribed methenamine hippurate, and 85% said they had never prescribed D-mannose.
Physicians with specialized training in menopausal care felt more at ease prescribing vaginal estrogen therapy to patients with complex medical histories, such as those with a family history of breast cancer or endometrial cancer. This suggests that enhanced education could play a vital role in increasing comfort levels among general practitioners, said Lauren Tholemeier, MD, a urogynecology fellow at the University of North Carolina at Chapel Hill.
“Primary care physicians are the front line of managing patients with recurrent UTI,” said Tholemeier.
“There’s an opportunity for further education on, and even awareness of, methenamine hippurate and D-mannose as an option that has data behind it and can be included as a tool” for patient care, she said.
Indeed, physicians who saw six or more recurrent patients with UTI each month were more likely to prescribe methenamine hippurate, the study found, suggesting that familiarity with recurrent UTI cases can lead to greater confidence in employing alternative prophylactic strategies.
Tholemeier presented her research at the American Urogynecologic Society’s PFD Week in Washington, DC.
Expanding physician knowledge and utilization of all available nonantibiotic therapies can help them better care for patients who don’t necessarily have access to a subspecialist, Tholemeier said.
According to the American Urogynecologic Society’s best practice guidelines, there is limited evidence supporting routine use of D-mannose to prevent recurrent UTI. Methenamine hippurate, however, may be effective for short-term UTI prevention, according to the group.
By broadening the use of vaginal estrogen therapy, methenamine hippurate, and D-mannose, primary care physicians can help reduce reliance on antibiotics for recurrent UTI prevention — a practice that may contribute to growing antibiotic resistance, said Tholemeier.
“The end goal isn’t going to be to say that we should never prescribe antibiotics for UTI infection,” said Tholemeier, adding that, in some cases, physicians can consider using these other medications in conjunction with antibiotics.
“But it’s knowing they [clinicians] have some other options in their toolbox,” she said.
A version of this article first appeared on Medscape.com.
FROM PFD WEEK 2024
Over-the-Counter UTI Products: What Primary Care Clinicians Need to Know
When it comes to managing urinary tract infections (UTIs), patients often turn to over-the-counter (OTC) products in search of quick relief. However, recent research suggests some products promise more than they can deliver and can vary widely in price and ingredients. For primary care clinicians, understanding these differences could make all the difference in offering effective, cost-conscious advice to patients.
Researchers from the University of Wisconsin analyzed OTC products marketed for urinary tract health in three major US drugstores and found significant price variations and a wide array of active ingredients.
Their study, presented at the American Urogynecologic Society’s PFD Week conference, found that the price of OTC products fluctuates dramatically. Phenazopyridine hydrochloride, commonly used for UTI symptom relief, ranged from $0.17 to $0.83 per tablet, the study found. Methenamine/sodium salicylate combinations, which are marketed for UTI prevention, varied from $0.13 to $0.33 per tablet. Cranberry supplements — often touted for their preventive benefits — showed the most extreme price range, from as low as $0.07 to as high as $1.00 per serving.
The study also looked into the ingredients, which were categorized into five main groups: Phenazopyridine hydrochloride, methenamine/sodium salicylate, cranberry supplements, D-mannose, and cranberry/D-mannose combinations.
These ingredients vary not only in price but also in the strength of scientific evidence supporting their use.
The researchers concluded:
- Phenazopyridine hydrochloride offers effective symptom relief but is not a UTI treatment.
- Methenamine/sodium salicylate shows potential for preventing recurrent UTIs in certain patients.
- Cranberry supplements have limited evidence for preventing UTIs, with no proof they treat infections.
- D-mannose has shown promise for short-term use in preventing recurrent UTIs, though more research is needed to weigh its effectiveness in the long run.
“No OTC product within its respective category is superior to another,” said Ushma J. Patel, MD, a fellow in Urogynecology and Reconstructive Pelvic Surgery at the University of Wisconsin School of Medicine and Public Health, Madison, and lead author of the study.
Patel and her coresearcher also found that many products are falsely marketed as treatments for UTI.
“The products in each type of category are for symptom relief or UTI prevention — not treatment,” said Patel. “These products within the categories described are interchangeable, and consumers should make cost-effective choices as no product is superior to another within its respective category.”
This presents the opportunity for clinicians to guide individuals to pick the right products while explaining that symptom relief doesn’t necessarily mean an infection is being treated, Patel said.
Indeed, Patel proposed that clinicians utilize a summary table created from their findings to offer patients vetted information about OTC UTI products.
And, while OTC products can provide benefits, they should not replace proper medical evaluation and treatment of UTIs.
“If patients are experiencing ongoing symptoms or develop new-onset symptoms despite trialing an over-the-counter product, they should contact a healthcare provider,” said Patel. “OTC products can provide symptom relief until patients are able to see a healthcare provider.”
The researchers reported no relevant disclosures.
A version of this article first appeared on Medscape.com.
When it comes to managing urinary tract infections (UTIs), patients often turn to over-the-counter (OTC) products in search of quick relief. However, recent research suggests some products promise more than they can deliver and can vary widely in price and ingredients. For primary care clinicians, understanding these differences could make all the difference in offering effective, cost-conscious advice to patients.
Researchers from the University of Wisconsin analyzed OTC products marketed for urinary tract health in three major US drugstores and found significant price variations and a wide array of active ingredients.
Their study, presented at the American Urogynecologic Society’s PFD Week conference, found that the price of OTC products fluctuates dramatically. Phenazopyridine hydrochloride, commonly used for UTI symptom relief, ranged from $0.17 to $0.83 per tablet, the study found. Methenamine/sodium salicylate combinations, which are marketed for UTI prevention, varied from $0.13 to $0.33 per tablet. Cranberry supplements — often touted for their preventive benefits — showed the most extreme price range, from as low as $0.07 to as high as $1.00 per serving.
The study also looked into the ingredients, which were categorized into five main groups: Phenazopyridine hydrochloride, methenamine/sodium salicylate, cranberry supplements, D-mannose, and cranberry/D-mannose combinations.
These ingredients vary not only in price but also in the strength of scientific evidence supporting their use.
The researchers concluded:
- Phenazopyridine hydrochloride offers effective symptom relief but is not a UTI treatment.
- Methenamine/sodium salicylate shows potential for preventing recurrent UTIs in certain patients.
- Cranberry supplements have limited evidence for preventing UTIs, with no proof they treat infections.
- D-mannose has shown promise for short-term use in preventing recurrent UTIs, though more research is needed to weigh its effectiveness in the long run.
“No OTC product within its respective category is superior to another,” said Ushma J. Patel, MD, a fellow in Urogynecology and Reconstructive Pelvic Surgery at the University of Wisconsin School of Medicine and Public Health, Madison, and lead author of the study.
Patel and her coresearcher also found that many products are falsely marketed as treatments for UTI.
“The products in each type of category are for symptom relief or UTI prevention — not treatment,” said Patel. “These products within the categories described are interchangeable, and consumers should make cost-effective choices as no product is superior to another within its respective category.”
This presents the opportunity for clinicians to guide individuals to pick the right products while explaining that symptom relief doesn’t necessarily mean an infection is being treated, Patel said.
Indeed, Patel proposed that clinicians utilize a summary table created from their findings to offer patients vetted information about OTC UTI products.
And, while OTC products can provide benefits, they should not replace proper medical evaluation and treatment of UTIs.
“If patients are experiencing ongoing symptoms or develop new-onset symptoms despite trialing an over-the-counter product, they should contact a healthcare provider,” said Patel. “OTC products can provide symptom relief until patients are able to see a healthcare provider.”
The researchers reported no relevant disclosures.
A version of this article first appeared on Medscape.com.
When it comes to managing urinary tract infections (UTIs), patients often turn to over-the-counter (OTC) products in search of quick relief. However, recent research suggests some products promise more than they can deliver and can vary widely in price and ingredients. For primary care clinicians, understanding these differences could make all the difference in offering effective, cost-conscious advice to patients.
Researchers from the University of Wisconsin analyzed OTC products marketed for urinary tract health in three major US drugstores and found significant price variations and a wide array of active ingredients.
Their study, presented at the American Urogynecologic Society’s PFD Week conference, found that the price of OTC products fluctuates dramatically. Phenazopyridine hydrochloride, commonly used for UTI symptom relief, ranged from $0.17 to $0.83 per tablet, the study found. Methenamine/sodium salicylate combinations, which are marketed for UTI prevention, varied from $0.13 to $0.33 per tablet. Cranberry supplements — often touted for their preventive benefits — showed the most extreme price range, from as low as $0.07 to as high as $1.00 per serving.
The study also looked into the ingredients, which were categorized into five main groups: Phenazopyridine hydrochloride, methenamine/sodium salicylate, cranberry supplements, D-mannose, and cranberry/D-mannose combinations.
These ingredients vary not only in price but also in the strength of scientific evidence supporting their use.
The researchers concluded:
- Phenazopyridine hydrochloride offers effective symptom relief but is not a UTI treatment.
- Methenamine/sodium salicylate shows potential for preventing recurrent UTIs in certain patients.
- Cranberry supplements have limited evidence for preventing UTIs, with no proof they treat infections.
- D-mannose has shown promise for short-term use in preventing recurrent UTIs, though more research is needed to weigh its effectiveness in the long run.
“No OTC product within its respective category is superior to another,” said Ushma J. Patel, MD, a fellow in Urogynecology and Reconstructive Pelvic Surgery at the University of Wisconsin School of Medicine and Public Health, Madison, and lead author of the study.
Patel and her coresearcher also found that many products are falsely marketed as treatments for UTI.
“The products in each type of category are for symptom relief or UTI prevention — not treatment,” said Patel. “These products within the categories described are interchangeable, and consumers should make cost-effective choices as no product is superior to another within its respective category.”
This presents the opportunity for clinicians to guide individuals to pick the right products while explaining that symptom relief doesn’t necessarily mean an infection is being treated, Patel said.
Indeed, Patel proposed that clinicians utilize a summary table created from their findings to offer patients vetted information about OTC UTI products.
And, while OTC products can provide benefits, they should not replace proper medical evaluation and treatment of UTIs.
“If patients are experiencing ongoing symptoms or develop new-onset symptoms despite trialing an over-the-counter product, they should contact a healthcare provider,” said Patel. “OTC products can provide symptom relief until patients are able to see a healthcare provider.”
The researchers reported no relevant disclosures.
A version of this article first appeared on Medscape.com.
FROM PFD WEEK 2024
Patients With Chronic Cough Report Relief With Semen Strychni
If standard therapies don’t give relief to patients with refractory cough associated with interstitial lung disease, maybe a little poison could do the trick.
Among 41 patients with idiopathic interstitial pneumonia with autoimmune features (IPAFs) who had intractable cough, treatment with the traditional Chinese medicine semen strychni was associated with a significant improvement in patient-reported outcomes, reported Mingwan Su, MD, from Guang’anmen Hospital and the China Academy of Chinese Medical Sciences in Beijing, China.
“Semen strychni is associated with reduction in cough and can be an effective drug therapy for refractory cough in association with IPAFs,” she said in an oral abstract session at the American College of Chest Physicians (CHEST) 2024 Annual Meeting.
Semen strychni is derived from the dried seeds of the plant Strychnos nux-vomica L. Its main toxic component is strychnine, the poison said to be favored by legendary mystery writer Agatha Christie.
Semen strychni is a central nervous system agonist that has reported efficacy in the treatment of musculoskeletal and autoimmune conditions, including rheumatoid arthritis, myasthenia gravis, and amyotrophic lateral sclerosis.
The medication also has immunomodulatory properties, Su said, and is thought to have beneficial effects against cough associated with IPAFs by reducing hypersensitivity.
Case-Control Study
To test this, Su and colleagues conducted a single-center retrospective study of the effects of semen strychni on 41 patients with IPAF-associated cough who were treated with low-dose oral semen strychni 300 mg/d for 2 weeks. These patients were paired with 41 control individuals matched for age, sex, and disease course. Control individuals received standard of care therapies.
The investigators found that for the primary endpoint of a change in the visual analog scale (VAS) at 2 weeks, there was a significantly greater reduction from baseline among patients treated with semen strychni compared with control individuals, with a baseline mean VAS score of 4.9 reduced to 2.1 at the end of treatment, vs 4.6 pre- to 3.3 post-treatment for control individuals. This difference translated to an odds ratio (OR) favoring semen strychni of 0.75 (P < .001).
In addition, the toxic compound was also associated with greater patient-reported improvement in the quality of life, as measured using the Leicester Cough Questionnaire, a 19-item scale that measures quality of life for people with chronic cough. Patients in the experimental arm had mean scores of 11.9 before treatment and 19 at the end of therapy compared with 12 and 15.1 points, respectively, among individuals in the control arm. This translated to an OR of 3.8 (P < .001) for patients on semen strychni.
The toxin appeared to be generally safe. There were no reported cases of pain, fainting, or bleeding in either study group, although there was one case of muscle twitching in the semen strychni group, Su reported.
There is evidence to suggest that semen strychni may have a calming effect on cough through action in the STAT3 pathway, considered to be a promising therapeutic target for musculoskeletal conditions, Su noted.
Not Ready for Prime Time
“My feeling is that these kinds of abstracts are welcome, but this is far from reality at this point,” said Vijay Balasubramanian, MD, clinical professor of medicine and director of the Pulmonary Hypertension Program at the University of California San Francisco.
“We need some kind of a regulated way of understanding dose characteristics and pharmacokinetics, and so it should be followed by more systematic studies,” he said in an interview.
Both Balasubramanian and his co-moderator Andrew R. Berman, MD, director of the Division of Pulmonary and Critical Care Medicine and Allergy and Rheumatology at Rutgers Health New Jersey Medical School in Newark, New Jersey, said that they sympathize with clinicians and their patients who seek out unusual therapies such as semen strychni.
“It’s very frustrating to treat chronic cough, especially associated with fibrotic lung disease, and the extent to which researchers will go to find that one product that perhaps can make a difference is understandable,” Berman told this news organization.
Su did not report a study funding source. Su, Balasubramanian, and Berman reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
If standard therapies don’t give relief to patients with refractory cough associated with interstitial lung disease, maybe a little poison could do the trick.
Among 41 patients with idiopathic interstitial pneumonia with autoimmune features (IPAFs) who had intractable cough, treatment with the traditional Chinese medicine semen strychni was associated with a significant improvement in patient-reported outcomes, reported Mingwan Su, MD, from Guang’anmen Hospital and the China Academy of Chinese Medical Sciences in Beijing, China.
“Semen strychni is associated with reduction in cough and can be an effective drug therapy for refractory cough in association with IPAFs,” she said in an oral abstract session at the American College of Chest Physicians (CHEST) 2024 Annual Meeting.
Semen strychni is derived from the dried seeds of the plant Strychnos nux-vomica L. Its main toxic component is strychnine, the poison said to be favored by legendary mystery writer Agatha Christie.
Semen strychni is a central nervous system agonist that has reported efficacy in the treatment of musculoskeletal and autoimmune conditions, including rheumatoid arthritis, myasthenia gravis, and amyotrophic lateral sclerosis.
The medication also has immunomodulatory properties, Su said, and is thought to have beneficial effects against cough associated with IPAFs by reducing hypersensitivity.
Case-Control Study
To test this, Su and colleagues conducted a single-center retrospective study of the effects of semen strychni on 41 patients with IPAF-associated cough who were treated with low-dose oral semen strychni 300 mg/d for 2 weeks. These patients were paired with 41 control individuals matched for age, sex, and disease course. Control individuals received standard of care therapies.
The investigators found that for the primary endpoint of a change in the visual analog scale (VAS) at 2 weeks, there was a significantly greater reduction from baseline among patients treated with semen strychni compared with control individuals, with a baseline mean VAS score of 4.9 reduced to 2.1 at the end of treatment, vs 4.6 pre- to 3.3 post-treatment for control individuals. This difference translated to an odds ratio (OR) favoring semen strychni of 0.75 (P < .001).
In addition, the toxic compound was also associated with greater patient-reported improvement in the quality of life, as measured using the Leicester Cough Questionnaire, a 19-item scale that measures quality of life for people with chronic cough. Patients in the experimental arm had mean scores of 11.9 before treatment and 19 at the end of therapy compared with 12 and 15.1 points, respectively, among individuals in the control arm. This translated to an OR of 3.8 (P < .001) for patients on semen strychni.
The toxin appeared to be generally safe. There were no reported cases of pain, fainting, or bleeding in either study group, although there was one case of muscle twitching in the semen strychni group, Su reported.
There is evidence to suggest that semen strychni may have a calming effect on cough through action in the STAT3 pathway, considered to be a promising therapeutic target for musculoskeletal conditions, Su noted.
Not Ready for Prime Time
“My feeling is that these kinds of abstracts are welcome, but this is far from reality at this point,” said Vijay Balasubramanian, MD, clinical professor of medicine and director of the Pulmonary Hypertension Program at the University of California San Francisco.
“We need some kind of a regulated way of understanding dose characteristics and pharmacokinetics, and so it should be followed by more systematic studies,” he said in an interview.
Both Balasubramanian and his co-moderator Andrew R. Berman, MD, director of the Division of Pulmonary and Critical Care Medicine and Allergy and Rheumatology at Rutgers Health New Jersey Medical School in Newark, New Jersey, said that they sympathize with clinicians and their patients who seek out unusual therapies such as semen strychni.
“It’s very frustrating to treat chronic cough, especially associated with fibrotic lung disease, and the extent to which researchers will go to find that one product that perhaps can make a difference is understandable,” Berman told this news organization.
Su did not report a study funding source. Su, Balasubramanian, and Berman reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
If standard therapies don’t give relief to patients with refractory cough associated with interstitial lung disease, maybe a little poison could do the trick.
Among 41 patients with idiopathic interstitial pneumonia with autoimmune features (IPAFs) who had intractable cough, treatment with the traditional Chinese medicine semen strychni was associated with a significant improvement in patient-reported outcomes, reported Mingwan Su, MD, from Guang’anmen Hospital and the China Academy of Chinese Medical Sciences in Beijing, China.
“Semen strychni is associated with reduction in cough and can be an effective drug therapy for refractory cough in association with IPAFs,” she said in an oral abstract session at the American College of Chest Physicians (CHEST) 2024 Annual Meeting.
Semen strychni is derived from the dried seeds of the plant Strychnos nux-vomica L. Its main toxic component is strychnine, the poison said to be favored by legendary mystery writer Agatha Christie.
Semen strychni is a central nervous system agonist that has reported efficacy in the treatment of musculoskeletal and autoimmune conditions, including rheumatoid arthritis, myasthenia gravis, and amyotrophic lateral sclerosis.
The medication also has immunomodulatory properties, Su said, and is thought to have beneficial effects against cough associated with IPAFs by reducing hypersensitivity.
Case-Control Study
To test this, Su and colleagues conducted a single-center retrospective study of the effects of semen strychni on 41 patients with IPAF-associated cough who were treated with low-dose oral semen strychni 300 mg/d for 2 weeks. These patients were paired with 41 control individuals matched for age, sex, and disease course. Control individuals received standard of care therapies.
The investigators found that for the primary endpoint of a change in the visual analog scale (VAS) at 2 weeks, there was a significantly greater reduction from baseline among patients treated with semen strychni compared with control individuals, with a baseline mean VAS score of 4.9 reduced to 2.1 at the end of treatment, vs 4.6 pre- to 3.3 post-treatment for control individuals. This difference translated to an odds ratio (OR) favoring semen strychni of 0.75 (P < .001).
In addition, the toxic compound was also associated with greater patient-reported improvement in the quality of life, as measured using the Leicester Cough Questionnaire, a 19-item scale that measures quality of life for people with chronic cough. Patients in the experimental arm had mean scores of 11.9 before treatment and 19 at the end of therapy compared with 12 and 15.1 points, respectively, among individuals in the control arm. This translated to an OR of 3.8 (P < .001) for patients on semen strychni.
The toxin appeared to be generally safe. There were no reported cases of pain, fainting, or bleeding in either study group, although there was one case of muscle twitching in the semen strychni group, Su reported.
There is evidence to suggest that semen strychni may have a calming effect on cough through action in the STAT3 pathway, considered to be a promising therapeutic target for musculoskeletal conditions, Su noted.
Not Ready for Prime Time
“My feeling is that these kinds of abstracts are welcome, but this is far from reality at this point,” said Vijay Balasubramanian, MD, clinical professor of medicine and director of the Pulmonary Hypertension Program at the University of California San Francisco.
“We need some kind of a regulated way of understanding dose characteristics and pharmacokinetics, and so it should be followed by more systematic studies,” he said in an interview.
Both Balasubramanian and his co-moderator Andrew R. Berman, MD, director of the Division of Pulmonary and Critical Care Medicine and Allergy and Rheumatology at Rutgers Health New Jersey Medical School in Newark, New Jersey, said that they sympathize with clinicians and their patients who seek out unusual therapies such as semen strychni.
“It’s very frustrating to treat chronic cough, especially associated with fibrotic lung disease, and the extent to which researchers will go to find that one product that perhaps can make a difference is understandable,” Berman told this news organization.
Su did not report a study funding source. Su, Balasubramanian, and Berman reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM CHEST 2024
Low-Volume Bowel Prep Easier, as Effective as Standard Prep in Hospitalized Patients
PHILADELPHIA — according to a study presented at the annual meeting of the American College of Gastroenterology (ACG).
Patients who received MoviPrep (2L of polyethylene glycol and ascorbic acid) reported higher tolerability and willingness to repeat colonoscopy preparation in the future than those taking GoLYTELY (4L of polyethylene glycol and electrolytes). In addition, the rates of electrolyte abnormalities and acute kidney injury were low and similar between the two groups.
“Bowel preparation remains a challenge in the inpatient setting, where 20%-50% of all colonoscopies can have inadequate bowel preparation,” said lead author Karen Xiao, MD, assistant professor in the section of digestive diseases at Yale School of Medicine, New Haven, Connecticut.
Previous studies have indicated that low-volume (2L), split-dose preparations are noninferior to high-volume (4L), split-dose regimens, and patients generally prefer low-volume options, she said. However, the current standard of care for inpatients continues to include high-volume polyethylene glycol electrocyte lavage, which may be less tolerable.
“Similar to prior studies, our study supports that MoviPrep may be a suitable alternative to traditional high-volume bowel preparation in hospitalized patients undergoing colonoscopy,” she said.
In a single-blind, multi-site, randomized controlled trial, Xiao and colleagues in the Yale–New Haven Health System randomly assigned inpatients undergoing colonoscopy to MoviPrep or GoLYTELY between January 2022 and July 2024. They excluded patients with prior small or large bowel resection, foreign body removal, or medical contraindications, such as obstruction, pregnancy, phenylketonuria, or glucose-6-phosphate dehydrogenase deficiency.
After bowel prep but before colonoscopy, patients took the Mayo Clinic Bowel Preparation survey. Colonoscopies were then recorded, and videos were scored by a single-blinded central reviewer. The primary outcome included the adequacy of bowel prep as defined by a Boston Bowel Preparation Scale score of 6 or higher, with each segment scoring 2 or higher.
In the final analysis, 202 patients received MoviPrep and 210 received GoLYTELY. In both groups, the average age was 62; about 60% were men; and 66% were White, about 22% Black, and 13%-15% Hispanic. About 65% of patients in both arms had an American Society of Anesthesiologists (ASA) score of 3, with another 20% in each group having an ASA score of 4, “reflective of a sicker inpatient population,” Xiao said.
Inpatient colonoscopy was indicated for gastrointestinal bleeding (55%), diarrhea (15%-20%), abnormal imaging (10%-13%), inflammatory bowel disease (4%), or other (35%-41%). Patients could have more than one indication for colonoscopy.
Overall, bowel preparation was scored as adequate in 111 patients with MoviPrep (55%) and 111 patients with GoLYTELY (52.9%), and was inadequate in 91 patients with MoviPrep (45%) and 99 patients with GoLYTELY (47.1%). With a rate difference of 2.1% and a P value of .007, MoviPrep was considered noninferior to GoLYTELY for adequate bowel preparation.
In terms of secondary outcomes, there wasn’t a significant difference in the length of hospital stay, with a median stay of 6 days. Similarly, there were no differences in the rates of adverse events, including acute kidney injury and electrolyte abnormalities, with rates ranging from 1% to 9%. MoviPrep patients were slightly more likely to need additional bowel prep but also had a slightly shorter time to colonoscopy.
Ease of Use Is a Plus
On the basis of the Mayo Clinic Bowel Preparation survey, there wasn’t a difference between the groups in how much bowel prep solution was left in the bottle. However, more than twice as many patients who took MoviPrep said the prep was “easy,” and more MoviPrep patients called it “acceptable,” whereas more GoLYTELY patients said prep was “somewhat difficult” or “very difficult.”
In addition, significantly more MoviPrep patients (49.7% vs 33.7%) said they were “mostly willing” to drink the same prep again if they needed another colonoscopy in the future, while more GoLYTELY patients said they were “somewhat willing” (44.7% vs 34.6%) or “not willing at all” (21.6% vs 15.7%).
“Bowel prep, particularly in hospitals, is important because we do it so often. When you think about what our patients in the hospital are going through, they’re very sick and often have multiple comorbidities, so how can we give them a bowel prep that is safe for them, easiest for them, easy for our nursing staff who are experiencing shortages, and as good as the traditional bowel prep,” said the session’s moderator, Amy Oxentenko, MD, AGAF, professor of medicine and gastroenterologist at Mayo Clinic, Rochester, Minnesota.
“Here we’ve seen great data that we can provide half the volume of the prep, still get amazing results in terms of adequacy of preparation, and the patients had a better experience,” said Oxentenko, the incoming ACG president. “That’s important because they likely may need another colonoscopy in the future, and we would hate for the bowel prep in the hospital to potentially dissuade them from a future colonoscopy.”
Future studies could stratify patients on the basis of colonoscopy indication or patient history, including conditions such as chronic constipation or neurogenic bowel, where some patients may still need a high-volume prep, Oxentenko said.
“Also, in the hospital setting, we don’t always know when a patient is going to the endoscopy suite due to other patient cases that may get prolonged or pushed in,” she said. “So how do you time the second dose of the split dose in anticipation of when that patient will go to the endoscopy suite to maintain that great preparation with a smaller volume prep?”
The study was awarded the ACG Governors Award for Excellence in Clinical Research (Trainee). Xiao and Oxentenko reported no relevant disclosures.
A version of this article appeared on Medscape.com.
PHILADELPHIA — according to a study presented at the annual meeting of the American College of Gastroenterology (ACG).
Patients who received MoviPrep (2L of polyethylene glycol and ascorbic acid) reported higher tolerability and willingness to repeat colonoscopy preparation in the future than those taking GoLYTELY (4L of polyethylene glycol and electrolytes). In addition, the rates of electrolyte abnormalities and acute kidney injury were low and similar between the two groups.
“Bowel preparation remains a challenge in the inpatient setting, where 20%-50% of all colonoscopies can have inadequate bowel preparation,” said lead author Karen Xiao, MD, assistant professor in the section of digestive diseases at Yale School of Medicine, New Haven, Connecticut.
Previous studies have indicated that low-volume (2L), split-dose preparations are noninferior to high-volume (4L), split-dose regimens, and patients generally prefer low-volume options, she said. However, the current standard of care for inpatients continues to include high-volume polyethylene glycol electrocyte lavage, which may be less tolerable.
“Similar to prior studies, our study supports that MoviPrep may be a suitable alternative to traditional high-volume bowel preparation in hospitalized patients undergoing colonoscopy,” she said.
In a single-blind, multi-site, randomized controlled trial, Xiao and colleagues in the Yale–New Haven Health System randomly assigned inpatients undergoing colonoscopy to MoviPrep or GoLYTELY between January 2022 and July 2024. They excluded patients with prior small or large bowel resection, foreign body removal, or medical contraindications, such as obstruction, pregnancy, phenylketonuria, or glucose-6-phosphate dehydrogenase deficiency.
After bowel prep but before colonoscopy, patients took the Mayo Clinic Bowel Preparation survey. Colonoscopies were then recorded, and videos were scored by a single-blinded central reviewer. The primary outcome included the adequacy of bowel prep as defined by a Boston Bowel Preparation Scale score of 6 or higher, with each segment scoring 2 or higher.
In the final analysis, 202 patients received MoviPrep and 210 received GoLYTELY. In both groups, the average age was 62; about 60% were men; and 66% were White, about 22% Black, and 13%-15% Hispanic. About 65% of patients in both arms had an American Society of Anesthesiologists (ASA) score of 3, with another 20% in each group having an ASA score of 4, “reflective of a sicker inpatient population,” Xiao said.
Inpatient colonoscopy was indicated for gastrointestinal bleeding (55%), diarrhea (15%-20%), abnormal imaging (10%-13%), inflammatory bowel disease (4%), or other (35%-41%). Patients could have more than one indication for colonoscopy.
Overall, bowel preparation was scored as adequate in 111 patients with MoviPrep (55%) and 111 patients with GoLYTELY (52.9%), and was inadequate in 91 patients with MoviPrep (45%) and 99 patients with GoLYTELY (47.1%). With a rate difference of 2.1% and a P value of .007, MoviPrep was considered noninferior to GoLYTELY for adequate bowel preparation.
In terms of secondary outcomes, there wasn’t a significant difference in the length of hospital stay, with a median stay of 6 days. Similarly, there were no differences in the rates of adverse events, including acute kidney injury and electrolyte abnormalities, with rates ranging from 1% to 9%. MoviPrep patients were slightly more likely to need additional bowel prep but also had a slightly shorter time to colonoscopy.
Ease of Use Is a Plus
On the basis of the Mayo Clinic Bowel Preparation survey, there wasn’t a difference between the groups in how much bowel prep solution was left in the bottle. However, more than twice as many patients who took MoviPrep said the prep was “easy,” and more MoviPrep patients called it “acceptable,” whereas more GoLYTELY patients said prep was “somewhat difficult” or “very difficult.”
In addition, significantly more MoviPrep patients (49.7% vs 33.7%) said they were “mostly willing” to drink the same prep again if they needed another colonoscopy in the future, while more GoLYTELY patients said they were “somewhat willing” (44.7% vs 34.6%) or “not willing at all” (21.6% vs 15.7%).
“Bowel prep, particularly in hospitals, is important because we do it so often. When you think about what our patients in the hospital are going through, they’re very sick and often have multiple comorbidities, so how can we give them a bowel prep that is safe for them, easiest for them, easy for our nursing staff who are experiencing shortages, and as good as the traditional bowel prep,” said the session’s moderator, Amy Oxentenko, MD, AGAF, professor of medicine and gastroenterologist at Mayo Clinic, Rochester, Minnesota.
“Here we’ve seen great data that we can provide half the volume of the prep, still get amazing results in terms of adequacy of preparation, and the patients had a better experience,” said Oxentenko, the incoming ACG president. “That’s important because they likely may need another colonoscopy in the future, and we would hate for the bowel prep in the hospital to potentially dissuade them from a future colonoscopy.”
Future studies could stratify patients on the basis of colonoscopy indication or patient history, including conditions such as chronic constipation or neurogenic bowel, where some patients may still need a high-volume prep, Oxentenko said.
“Also, in the hospital setting, we don’t always know when a patient is going to the endoscopy suite due to other patient cases that may get prolonged or pushed in,” she said. “So how do you time the second dose of the split dose in anticipation of when that patient will go to the endoscopy suite to maintain that great preparation with a smaller volume prep?”
The study was awarded the ACG Governors Award for Excellence in Clinical Research (Trainee). Xiao and Oxentenko reported no relevant disclosures.
A version of this article appeared on Medscape.com.
PHILADELPHIA — according to a study presented at the annual meeting of the American College of Gastroenterology (ACG).
Patients who received MoviPrep (2L of polyethylene glycol and ascorbic acid) reported higher tolerability and willingness to repeat colonoscopy preparation in the future than those taking GoLYTELY (4L of polyethylene glycol and electrolytes). In addition, the rates of electrolyte abnormalities and acute kidney injury were low and similar between the two groups.
“Bowel preparation remains a challenge in the inpatient setting, where 20%-50% of all colonoscopies can have inadequate bowel preparation,” said lead author Karen Xiao, MD, assistant professor in the section of digestive diseases at Yale School of Medicine, New Haven, Connecticut.
Previous studies have indicated that low-volume (2L), split-dose preparations are noninferior to high-volume (4L), split-dose regimens, and patients generally prefer low-volume options, she said. However, the current standard of care for inpatients continues to include high-volume polyethylene glycol electrocyte lavage, which may be less tolerable.
“Similar to prior studies, our study supports that MoviPrep may be a suitable alternative to traditional high-volume bowel preparation in hospitalized patients undergoing colonoscopy,” she said.
In a single-blind, multi-site, randomized controlled trial, Xiao and colleagues in the Yale–New Haven Health System randomly assigned inpatients undergoing colonoscopy to MoviPrep or GoLYTELY between January 2022 and July 2024. They excluded patients with prior small or large bowel resection, foreign body removal, or medical contraindications, such as obstruction, pregnancy, phenylketonuria, or glucose-6-phosphate dehydrogenase deficiency.
After bowel prep but before colonoscopy, patients took the Mayo Clinic Bowel Preparation survey. Colonoscopies were then recorded, and videos were scored by a single-blinded central reviewer. The primary outcome included the adequacy of bowel prep as defined by a Boston Bowel Preparation Scale score of 6 or higher, with each segment scoring 2 or higher.
In the final analysis, 202 patients received MoviPrep and 210 received GoLYTELY. In both groups, the average age was 62; about 60% were men; and 66% were White, about 22% Black, and 13%-15% Hispanic. About 65% of patients in both arms had an American Society of Anesthesiologists (ASA) score of 3, with another 20% in each group having an ASA score of 4, “reflective of a sicker inpatient population,” Xiao said.
Inpatient colonoscopy was indicated for gastrointestinal bleeding (55%), diarrhea (15%-20%), abnormal imaging (10%-13%), inflammatory bowel disease (4%), or other (35%-41%). Patients could have more than one indication for colonoscopy.
Overall, bowel preparation was scored as adequate in 111 patients with MoviPrep (55%) and 111 patients with GoLYTELY (52.9%), and was inadequate in 91 patients with MoviPrep (45%) and 99 patients with GoLYTELY (47.1%). With a rate difference of 2.1% and a P value of .007, MoviPrep was considered noninferior to GoLYTELY for adequate bowel preparation.
In terms of secondary outcomes, there wasn’t a significant difference in the length of hospital stay, with a median stay of 6 days. Similarly, there were no differences in the rates of adverse events, including acute kidney injury and electrolyte abnormalities, with rates ranging from 1% to 9%. MoviPrep patients were slightly more likely to need additional bowel prep but also had a slightly shorter time to colonoscopy.
Ease of Use Is a Plus
On the basis of the Mayo Clinic Bowel Preparation survey, there wasn’t a difference between the groups in how much bowel prep solution was left in the bottle. However, more than twice as many patients who took MoviPrep said the prep was “easy,” and more MoviPrep patients called it “acceptable,” whereas more GoLYTELY patients said prep was “somewhat difficult” or “very difficult.”
In addition, significantly more MoviPrep patients (49.7% vs 33.7%) said they were “mostly willing” to drink the same prep again if they needed another colonoscopy in the future, while more GoLYTELY patients said they were “somewhat willing” (44.7% vs 34.6%) or “not willing at all” (21.6% vs 15.7%).
“Bowel prep, particularly in hospitals, is important because we do it so often. When you think about what our patients in the hospital are going through, they’re very sick and often have multiple comorbidities, so how can we give them a bowel prep that is safe for them, easiest for them, easy for our nursing staff who are experiencing shortages, and as good as the traditional bowel prep,” said the session’s moderator, Amy Oxentenko, MD, AGAF, professor of medicine and gastroenterologist at Mayo Clinic, Rochester, Minnesota.
“Here we’ve seen great data that we can provide half the volume of the prep, still get amazing results in terms of adequacy of preparation, and the patients had a better experience,” said Oxentenko, the incoming ACG president. “That’s important because they likely may need another colonoscopy in the future, and we would hate for the bowel prep in the hospital to potentially dissuade them from a future colonoscopy.”
Future studies could stratify patients on the basis of colonoscopy indication or patient history, including conditions such as chronic constipation or neurogenic bowel, where some patients may still need a high-volume prep, Oxentenko said.
“Also, in the hospital setting, we don’t always know when a patient is going to the endoscopy suite due to other patient cases that may get prolonged or pushed in,” she said. “So how do you time the second dose of the split dose in anticipation of when that patient will go to the endoscopy suite to maintain that great preparation with a smaller volume prep?”
The study was awarded the ACG Governors Award for Excellence in Clinical Research (Trainee). Xiao and Oxentenko reported no relevant disclosures.
A version of this article appeared on Medscape.com.
FROM ACG 2024
Breath Gas Patterns Predict Response to Low FODMAP Diet
PHILADELPHIA — , according to a new study.
The low FODMAP diet is the most evidence-based dietary therapy for patients with IBS, but we know that “only about 50% of our patients respond to it,” said principal investigator Prashant Singh, MD, assistant professor at the University of Michigan in Ann Arbor, Michigan. “Exhaled breath gases represent bacterial fermentation of dietary carbohydrates. These measurements could provide a simple biomarker for response to low FODMAP diets.”
Even before starting the low FODMAP diet, “you could see notable differences in breath test patterns between responders and nonresponders,” he said. “We saw that low FODMAP responders had higher hydrogen (H2) and lower methane (CH4) at baseline than nonresponders and had a greater drop in hydrogen following FODMAP restriction vs nonresponders.”
He added that these results imply that responders to this diet may exhibit differences in baseline microbiota composition regarding saccharolytic capacity and/or methanogens.
Singh presented the findings at the American College of Gastroenterology (ACG) 2024 Annual Scientific Meeting.
Breaths That Can Predict Response
To determine if pre-intervention non-fasting breath patterns are associated with a clinical response to low FODMAP diets, Singh and colleagues enrolled 284 self-selected participants (mean age, 45.2 years) with mild to moderate gastrointestinal (GI) symptoms. Participants used an app-connected breath analyzer to record hourly, non-fasting H2 and CH4 levels during waking hours, in addition to logging meal content and symptom severity (bloating, abdominal pain, and flatulence) on a 0-10 scale.
Patients were directed to consume their habitual diet for 1 week, before following an app-directed low FODMAP diet for 1 week. Responders were defined as those with a ≥ 30% reduction in at least one mean symptom score. The researchers then compared average hourly H2 and CH4 levels and symptom scores at baseline between low FODMAP diet responders and nonresponders.
Of the participants, 111 were classified as responders and 173 as nonresponders. There were no significant differences between the groups in gender, age, body mass index, or FODMAP per calorie.
Following FODMAP restriction, responders had consistently lower abdominal pain throughout the day and lower bloating and flatulence predominantly in the latter part of the day. Nonresponders experienced no significant changes in key abdominal symptoms after adopting the low FODMAP diet.
The researchers found that breath tests taken at baseline revealed predictive trends between the groups, even though average FODMAP consumption did not significantly differ between them. Baseline H2 levels were higher among responders than among nonresponders, especially in the morning and evening. However, responders had lower baseline CH4 levels throughout the day.
Following FODMAP restrictions, responders had a significant drop in non-fasting H2 but not CH4, whereas nonresponders did not have a significant drop in either.
The study was limited by the fact that participants were not clinically diagnosed with IBS, their GI symptoms were mild overall, and no data were available on stool consistency/frequency or fecal microbiome composition for correlation with exhaled breath gas levels.
A Potential New Biomarker
Session co-moderator Kyle Staller, MD, MPH, director of the Gastrointestinal Motility Laboratory at Mass General and associate professor of medicine at Harvard Medical School in Boston, Massachusetts, said in an interview that if validated, these findings provide hope for better directing low FODMAP diets to those patients who may benefit.
There are some patients who may or may not respond to a FODMAP diet, for reasons we don’t yet know, possibly related to fermentation of gas, and it’s helpful to know before starting treatment, he said. It may help us with more of “a precision medicine approach before we really torture people with diets that can be very difficult to adhere to.”
Staller, who was not involved in the study, added that, “People tend to really focus on small intestinal bacteria overgrowth when it comes to hydrogen and methane production, but in reality, this is really a very agile day-to-day, meal-to-meal responsiveness.
“It’s a different paradigm,” he continued. “I’d also like to see more data as to why we see the diurnal rhythm” and whether potential factors such as intestinal transit times are playing a role.
Singh reported receiving royalties from UpToDate. Staller reported receiving research support from Ardelyx and Restasis and serving as a consultant to Anji, Ardelyx, GI Supply, Mahana, Restasis, and Sanofi. Funding associated with the study was not available at the time of publication.
A version of this article appeared on Medscape.com.
PHILADELPHIA — , according to a new study.
The low FODMAP diet is the most evidence-based dietary therapy for patients with IBS, but we know that “only about 50% of our patients respond to it,” said principal investigator Prashant Singh, MD, assistant professor at the University of Michigan in Ann Arbor, Michigan. “Exhaled breath gases represent bacterial fermentation of dietary carbohydrates. These measurements could provide a simple biomarker for response to low FODMAP diets.”
Even before starting the low FODMAP diet, “you could see notable differences in breath test patterns between responders and nonresponders,” he said. “We saw that low FODMAP responders had higher hydrogen (H2) and lower methane (CH4) at baseline than nonresponders and had a greater drop in hydrogen following FODMAP restriction vs nonresponders.”
He added that these results imply that responders to this diet may exhibit differences in baseline microbiota composition regarding saccharolytic capacity and/or methanogens.
Singh presented the findings at the American College of Gastroenterology (ACG) 2024 Annual Scientific Meeting.
Breaths That Can Predict Response
To determine if pre-intervention non-fasting breath patterns are associated with a clinical response to low FODMAP diets, Singh and colleagues enrolled 284 self-selected participants (mean age, 45.2 years) with mild to moderate gastrointestinal (GI) symptoms. Participants used an app-connected breath analyzer to record hourly, non-fasting H2 and CH4 levels during waking hours, in addition to logging meal content and symptom severity (bloating, abdominal pain, and flatulence) on a 0-10 scale.
Patients were directed to consume their habitual diet for 1 week, before following an app-directed low FODMAP diet for 1 week. Responders were defined as those with a ≥ 30% reduction in at least one mean symptom score. The researchers then compared average hourly H2 and CH4 levels and symptom scores at baseline between low FODMAP diet responders and nonresponders.
Of the participants, 111 were classified as responders and 173 as nonresponders. There were no significant differences between the groups in gender, age, body mass index, or FODMAP per calorie.
Following FODMAP restriction, responders had consistently lower abdominal pain throughout the day and lower bloating and flatulence predominantly in the latter part of the day. Nonresponders experienced no significant changes in key abdominal symptoms after adopting the low FODMAP diet.
The researchers found that breath tests taken at baseline revealed predictive trends between the groups, even though average FODMAP consumption did not significantly differ between them. Baseline H2 levels were higher among responders than among nonresponders, especially in the morning and evening. However, responders had lower baseline CH4 levels throughout the day.
Following FODMAP restrictions, responders had a significant drop in non-fasting H2 but not CH4, whereas nonresponders did not have a significant drop in either.
The study was limited by the fact that participants were not clinically diagnosed with IBS, their GI symptoms were mild overall, and no data were available on stool consistency/frequency or fecal microbiome composition for correlation with exhaled breath gas levels.
A Potential New Biomarker
Session co-moderator Kyle Staller, MD, MPH, director of the Gastrointestinal Motility Laboratory at Mass General and associate professor of medicine at Harvard Medical School in Boston, Massachusetts, said in an interview that if validated, these findings provide hope for better directing low FODMAP diets to those patients who may benefit.
There are some patients who may or may not respond to a FODMAP diet, for reasons we don’t yet know, possibly related to fermentation of gas, and it’s helpful to know before starting treatment, he said. It may help us with more of “a precision medicine approach before we really torture people with diets that can be very difficult to adhere to.”
Staller, who was not involved in the study, added that, “People tend to really focus on small intestinal bacteria overgrowth when it comes to hydrogen and methane production, but in reality, this is really a very agile day-to-day, meal-to-meal responsiveness.
“It’s a different paradigm,” he continued. “I’d also like to see more data as to why we see the diurnal rhythm” and whether potential factors such as intestinal transit times are playing a role.
Singh reported receiving royalties from UpToDate. Staller reported receiving research support from Ardelyx and Restasis and serving as a consultant to Anji, Ardelyx, GI Supply, Mahana, Restasis, and Sanofi. Funding associated with the study was not available at the time of publication.
A version of this article appeared on Medscape.com.
PHILADELPHIA — , according to a new study.
The low FODMAP diet is the most evidence-based dietary therapy for patients with IBS, but we know that “only about 50% of our patients respond to it,” said principal investigator Prashant Singh, MD, assistant professor at the University of Michigan in Ann Arbor, Michigan. “Exhaled breath gases represent bacterial fermentation of dietary carbohydrates. These measurements could provide a simple biomarker for response to low FODMAP diets.”
Even before starting the low FODMAP diet, “you could see notable differences in breath test patterns between responders and nonresponders,” he said. “We saw that low FODMAP responders had higher hydrogen (H2) and lower methane (CH4) at baseline than nonresponders and had a greater drop in hydrogen following FODMAP restriction vs nonresponders.”
He added that these results imply that responders to this diet may exhibit differences in baseline microbiota composition regarding saccharolytic capacity and/or methanogens.
Singh presented the findings at the American College of Gastroenterology (ACG) 2024 Annual Scientific Meeting.
Breaths That Can Predict Response
To determine if pre-intervention non-fasting breath patterns are associated with a clinical response to low FODMAP diets, Singh and colleagues enrolled 284 self-selected participants (mean age, 45.2 years) with mild to moderate gastrointestinal (GI) symptoms. Participants used an app-connected breath analyzer to record hourly, non-fasting H2 and CH4 levels during waking hours, in addition to logging meal content and symptom severity (bloating, abdominal pain, and flatulence) on a 0-10 scale.
Patients were directed to consume their habitual diet for 1 week, before following an app-directed low FODMAP diet for 1 week. Responders were defined as those with a ≥ 30% reduction in at least one mean symptom score. The researchers then compared average hourly H2 and CH4 levels and symptom scores at baseline between low FODMAP diet responders and nonresponders.
Of the participants, 111 were classified as responders and 173 as nonresponders. There were no significant differences between the groups in gender, age, body mass index, or FODMAP per calorie.
Following FODMAP restriction, responders had consistently lower abdominal pain throughout the day and lower bloating and flatulence predominantly in the latter part of the day. Nonresponders experienced no significant changes in key abdominal symptoms after adopting the low FODMAP diet.
The researchers found that breath tests taken at baseline revealed predictive trends between the groups, even though average FODMAP consumption did not significantly differ between them. Baseline H2 levels were higher among responders than among nonresponders, especially in the morning and evening. However, responders had lower baseline CH4 levels throughout the day.
Following FODMAP restrictions, responders had a significant drop in non-fasting H2 but not CH4, whereas nonresponders did not have a significant drop in either.
The study was limited by the fact that participants were not clinically diagnosed with IBS, their GI symptoms were mild overall, and no data were available on stool consistency/frequency or fecal microbiome composition for correlation with exhaled breath gas levels.
A Potential New Biomarker
Session co-moderator Kyle Staller, MD, MPH, director of the Gastrointestinal Motility Laboratory at Mass General and associate professor of medicine at Harvard Medical School in Boston, Massachusetts, said in an interview that if validated, these findings provide hope for better directing low FODMAP diets to those patients who may benefit.
There are some patients who may or may not respond to a FODMAP diet, for reasons we don’t yet know, possibly related to fermentation of gas, and it’s helpful to know before starting treatment, he said. It may help us with more of “a precision medicine approach before we really torture people with diets that can be very difficult to adhere to.”
Staller, who was not involved in the study, added that, “People tend to really focus on small intestinal bacteria overgrowth when it comes to hydrogen and methane production, but in reality, this is really a very agile day-to-day, meal-to-meal responsiveness.
“It’s a different paradigm,” he continued. “I’d also like to see more data as to why we see the diurnal rhythm” and whether potential factors such as intestinal transit times are playing a role.
Singh reported receiving royalties from UpToDate. Staller reported receiving research support from Ardelyx and Restasis and serving as a consultant to Anji, Ardelyx, GI Supply, Mahana, Restasis, and Sanofi. Funding associated with the study was not available at the time of publication.
A version of this article appeared on Medscape.com.
FROM ACG 2024
GLP-1 RAs Reduce Early-Onset CRC Risk in Patients With Type 2 Diabetes
PHILADELPHIA — according to the results of a retrospective study.
“This is the first large study to investigate the impact of GLP-1 RA use on EO-CRC risk,” principal investigator Temitope Olasehinde, MD, resident physician at the University Hospitals Cleveland Medical Center, Case Western Reserve University in Cleveland, Ohio, said in an interview.
The results indicate the GLP-1 RAs have a potentially protective role to play in combating EO-CRC, the incidence of which is notably rising in younger adults, with a corresponding increase in associated mortality.
Previous studies investigating the link between GLP-1 RAs and CRC did not capture patients aged younger than 50 years; thus, it was unknown if these results could be extrapolated to a younger age group, said Olasehinde.
The researcher presented the findings at the annual meeting of the American College of Gastroenterology.
Retrospective Database Analysis
Olasehinde and colleagues analyzed data from TriNetX, a large federated deidentified health research network, to identify patients (age ≤ 49 years) with diagnosed T2D subsequently prescribed antidiabetic medications who had not received a prior diagnosis of CRC. Additionally, patients were stratified on the basis of first-time GLP-1 RA use.
They identified 2,025,034 drug-naive patients with T2D; of these, 284,685 were subsequently prescribed GLP-1 RAs, and 1,740,349 remained in the non–GLP-1 RA cohort. Following propensity score matching, there were 86,186 patients in each cohort.
Patients who received GLP-1 RAs had significantly lower odds of developing EO-CRC than those who received non–GLP-1 RAs (0.6% vs 0.9%; P < .001; odds ratio [OR], 0.61; 95% CI, 0.54-068).
Furthermore, a sub-analysis revealed that patients who were obese and taking GLP-1 RAs had significantly lower odds of developing EO-CRC than patients who were obese but not taking GLP-1 RAs (0.7% vs 1.1%; P < .001; OR, 0.58; 95% CI, 0.50-067).
A Proposed Protective Effect
Although GLP-1 RAs are indicated for the treatment of T2D and obesity, recent evidence suggests that they may play a role in reducing the risk for CRC as well. This protective effect may be produced not only by addressing T2D and obesity — both important risk factors for CRC — but also via cellular mechanisms, Olasehinde noted.
“GLP-1 receptors are widely expressed throughout the gastrointestinal tract, with various effects on tissues in the stomach, small intestine, and colon,” she explained. Specifically, activation of these receptors in the proximal and distal colon promotes the release of “important factors that protect and facilitate healing of the intestinal epithelium” and “regulate the gut microbiome.”
This is particularly relevant in EO-CRC, she added, given its greater association with T2D and obesity, both factors that “have been shown to create dysbiosis in the gut microbiome and low-grade inflammation via release of free radicals/inflammatory cytokines.”
These results provide more evidence that EO-CRC “is clinically and molecularly distinct from late-onset colorectal cancer,” which is important for both clinicians and patients to understand, said Olasehinde.
“It is imperative that we are all aware of the specific signs and symptoms this population presents with and the implications of this diagnosis in younger age groups,” she added. “Patients should continue making informed dietary and lifestyle modifications/choices to help reduce the burden of EO-CRC.”
Hypothesis-Generating Results
Aasma Shaukat, MD, MPH, who was not affiliated with the research, called the results promising but — at this stage — primarily useful for stimulating future research.
"We do need more studies such as this to generate hypotheses that can be studied prospectively," Shaukat, professor of medicine and population health, and director of GI Outcomes Research at NYU Langone Health in New York City, told Medscape Medical News.
She referred to another study, published in JAMA Oncology, that also used the TriNetX research network, which showed that GLP-1 RAs were associated with reduced CRC risk in drug-naive patients with T2D.
Shaukat also noted that the current analysis has limitations that should be considered. "The study is retrospective, and confounding is a possibility,” she said.
“How the groups that did and did not receive GLP-1 RAs differ in other risk factors that could be the drivers of the cancers is not known. Whether cancers were detected through screening or symptoms, stage, and other features that may differ are not known. Finally, since we don’t know who did or did not have colonoscopy, undiagnosed cancers are not known," she explained.
Shaukat, who was the lead author of the ACG 2021 Colorectal Cancer Screening Guidelines, added that the field would benefit from studies providing "biological plausibility information, such as animal studies to understand how GLP-1 RAs may modulate risk of colon cancer; other population-based cohort studies on the incidence of colon cancer among GLP-1 RA users and non-users; and prospective trials on chemoprevention."
The study had no specific funding. Olasehinde reported no relevant financial relationships. Shaukat reported serving as a consultant for Freenome, Medtronic, and Motus GI, as well as an advisory board member for Iterative Scopes Inc.
A version of this article appeared on Medscape.com.
PHILADELPHIA — according to the results of a retrospective study.
“This is the first large study to investigate the impact of GLP-1 RA use on EO-CRC risk,” principal investigator Temitope Olasehinde, MD, resident physician at the University Hospitals Cleveland Medical Center, Case Western Reserve University in Cleveland, Ohio, said in an interview.
The results indicate the GLP-1 RAs have a potentially protective role to play in combating EO-CRC, the incidence of which is notably rising in younger adults, with a corresponding increase in associated mortality.
Previous studies investigating the link between GLP-1 RAs and CRC did not capture patients aged younger than 50 years; thus, it was unknown if these results could be extrapolated to a younger age group, said Olasehinde.
The researcher presented the findings at the annual meeting of the American College of Gastroenterology.
Retrospective Database Analysis
Olasehinde and colleagues analyzed data from TriNetX, a large federated deidentified health research network, to identify patients (age ≤ 49 years) with diagnosed T2D subsequently prescribed antidiabetic medications who had not received a prior diagnosis of CRC. Additionally, patients were stratified on the basis of first-time GLP-1 RA use.
They identified 2,025,034 drug-naive patients with T2D; of these, 284,685 were subsequently prescribed GLP-1 RAs, and 1,740,349 remained in the non–GLP-1 RA cohort. Following propensity score matching, there were 86,186 patients in each cohort.
Patients who received GLP-1 RAs had significantly lower odds of developing EO-CRC than those who received non–GLP-1 RAs (0.6% vs 0.9%; P < .001; odds ratio [OR], 0.61; 95% CI, 0.54-068).
Furthermore, a sub-analysis revealed that patients who were obese and taking GLP-1 RAs had significantly lower odds of developing EO-CRC than patients who were obese but not taking GLP-1 RAs (0.7% vs 1.1%; P < .001; OR, 0.58; 95% CI, 0.50-067).
A Proposed Protective Effect
Although GLP-1 RAs are indicated for the treatment of T2D and obesity, recent evidence suggests that they may play a role in reducing the risk for CRC as well. This protective effect may be produced not only by addressing T2D and obesity — both important risk factors for CRC — but also via cellular mechanisms, Olasehinde noted.
“GLP-1 receptors are widely expressed throughout the gastrointestinal tract, with various effects on tissues in the stomach, small intestine, and colon,” she explained. Specifically, activation of these receptors in the proximal and distal colon promotes the release of “important factors that protect and facilitate healing of the intestinal epithelium” and “regulate the gut microbiome.”
This is particularly relevant in EO-CRC, she added, given its greater association with T2D and obesity, both factors that “have been shown to create dysbiosis in the gut microbiome and low-grade inflammation via release of free radicals/inflammatory cytokines.”
These results provide more evidence that EO-CRC “is clinically and molecularly distinct from late-onset colorectal cancer,” which is important for both clinicians and patients to understand, said Olasehinde.
“It is imperative that we are all aware of the specific signs and symptoms this population presents with and the implications of this diagnosis in younger age groups,” she added. “Patients should continue making informed dietary and lifestyle modifications/choices to help reduce the burden of EO-CRC.”
Hypothesis-Generating Results
Aasma Shaukat, MD, MPH, who was not affiliated with the research, called the results promising but — at this stage — primarily useful for stimulating future research.
"We do need more studies such as this to generate hypotheses that can be studied prospectively," Shaukat, professor of medicine and population health, and director of GI Outcomes Research at NYU Langone Health in New York City, told Medscape Medical News.
She referred to another study, published in JAMA Oncology, that also used the TriNetX research network, which showed that GLP-1 RAs were associated with reduced CRC risk in drug-naive patients with T2D.
Shaukat also noted that the current analysis has limitations that should be considered. "The study is retrospective, and confounding is a possibility,” she said.
“How the groups that did and did not receive GLP-1 RAs differ in other risk factors that could be the drivers of the cancers is not known. Whether cancers were detected through screening or symptoms, stage, and other features that may differ are not known. Finally, since we don’t know who did or did not have colonoscopy, undiagnosed cancers are not known," she explained.
Shaukat, who was the lead author of the ACG 2021 Colorectal Cancer Screening Guidelines, added that the field would benefit from studies providing "biological plausibility information, such as animal studies to understand how GLP-1 RAs may modulate risk of colon cancer; other population-based cohort studies on the incidence of colon cancer among GLP-1 RA users and non-users; and prospective trials on chemoprevention."
The study had no specific funding. Olasehinde reported no relevant financial relationships. Shaukat reported serving as a consultant for Freenome, Medtronic, and Motus GI, as well as an advisory board member for Iterative Scopes Inc.
A version of this article appeared on Medscape.com.
PHILADELPHIA — according to the results of a retrospective study.
“This is the first large study to investigate the impact of GLP-1 RA use on EO-CRC risk,” principal investigator Temitope Olasehinde, MD, resident physician at the University Hospitals Cleveland Medical Center, Case Western Reserve University in Cleveland, Ohio, said in an interview.
The results indicate the GLP-1 RAs have a potentially protective role to play in combating EO-CRC, the incidence of which is notably rising in younger adults, with a corresponding increase in associated mortality.
Previous studies investigating the link between GLP-1 RAs and CRC did not capture patients aged younger than 50 years; thus, it was unknown if these results could be extrapolated to a younger age group, said Olasehinde.
The researcher presented the findings at the annual meeting of the American College of Gastroenterology.
Retrospective Database Analysis
Olasehinde and colleagues analyzed data from TriNetX, a large federated deidentified health research network, to identify patients (age ≤ 49 years) with diagnosed T2D subsequently prescribed antidiabetic medications who had not received a prior diagnosis of CRC. Additionally, patients were stratified on the basis of first-time GLP-1 RA use.
They identified 2,025,034 drug-naive patients with T2D; of these, 284,685 were subsequently prescribed GLP-1 RAs, and 1,740,349 remained in the non–GLP-1 RA cohort. Following propensity score matching, there were 86,186 patients in each cohort.
Patients who received GLP-1 RAs had significantly lower odds of developing EO-CRC than those who received non–GLP-1 RAs (0.6% vs 0.9%; P < .001; odds ratio [OR], 0.61; 95% CI, 0.54-068).
Furthermore, a sub-analysis revealed that patients who were obese and taking GLP-1 RAs had significantly lower odds of developing EO-CRC than patients who were obese but not taking GLP-1 RAs (0.7% vs 1.1%; P < .001; OR, 0.58; 95% CI, 0.50-067).
A Proposed Protective Effect
Although GLP-1 RAs are indicated for the treatment of T2D and obesity, recent evidence suggests that they may play a role in reducing the risk for CRC as well. This protective effect may be produced not only by addressing T2D and obesity — both important risk factors for CRC — but also via cellular mechanisms, Olasehinde noted.
“GLP-1 receptors are widely expressed throughout the gastrointestinal tract, with various effects on tissues in the stomach, small intestine, and colon,” she explained. Specifically, activation of these receptors in the proximal and distal colon promotes the release of “important factors that protect and facilitate healing of the intestinal epithelium” and “regulate the gut microbiome.”
This is particularly relevant in EO-CRC, she added, given its greater association with T2D and obesity, both factors that “have been shown to create dysbiosis in the gut microbiome and low-grade inflammation via release of free radicals/inflammatory cytokines.”
These results provide more evidence that EO-CRC “is clinically and molecularly distinct from late-onset colorectal cancer,” which is important for both clinicians and patients to understand, said Olasehinde.
“It is imperative that we are all aware of the specific signs and symptoms this population presents with and the implications of this diagnosis in younger age groups,” she added. “Patients should continue making informed dietary and lifestyle modifications/choices to help reduce the burden of EO-CRC.”
Hypothesis-Generating Results
Aasma Shaukat, MD, MPH, who was not affiliated with the research, called the results promising but — at this stage — primarily useful for stimulating future research.
"We do need more studies such as this to generate hypotheses that can be studied prospectively," Shaukat, professor of medicine and population health, and director of GI Outcomes Research at NYU Langone Health in New York City, told Medscape Medical News.
She referred to another study, published in JAMA Oncology, that also used the TriNetX research network, which showed that GLP-1 RAs were associated with reduced CRC risk in drug-naive patients with T2D.
Shaukat also noted that the current analysis has limitations that should be considered. "The study is retrospective, and confounding is a possibility,” she said.
“How the groups that did and did not receive GLP-1 RAs differ in other risk factors that could be the drivers of the cancers is not known. Whether cancers were detected through screening or symptoms, stage, and other features that may differ are not known. Finally, since we don’t know who did or did not have colonoscopy, undiagnosed cancers are not known," she explained.
Shaukat, who was the lead author of the ACG 2021 Colorectal Cancer Screening Guidelines, added that the field would benefit from studies providing "biological plausibility information, such as animal studies to understand how GLP-1 RAs may modulate risk of colon cancer; other population-based cohort studies on the incidence of colon cancer among GLP-1 RA users and non-users; and prospective trials on chemoprevention."
The study had no specific funding. Olasehinde reported no relevant financial relationships. Shaukat reported serving as a consultant for Freenome, Medtronic, and Motus GI, as well as an advisory board member for Iterative Scopes Inc.
A version of this article appeared on Medscape.com.
FROM ACG 2024
AI Tool Helps Detect, Differentiate Pancreatic Lesions During Endoscopic Ultrasound
PHILADELPHIA —
This was a transatlantic collaborative effort involving researchers in Portugal, Spain, the United States, and Brazil, and the AI tool “works on different platforms and different devices,” Miguel Mascarenhas, MD, PhD, with Centro Hospitalar Universitário de São João, Porto, Portugal, said in a presentation at the annual meeting of the American College of Gastroenterology.
Mascarenhas noted that pancreatic cystic lesions (PCLs) are a common incidental finding during imaging and are differentiated by whether they’re mucinous PCLs (M-PCLs) or non-mucinous PCLs (NM-PCLs). The malignancy risk is almost exclusive of PCL with a mucinous phenotype.
Pancreatic solid lesions are also prevalent, and differentiation is challenging. Pancreatic ductal adenocarcinoma (P-DAC) is the most common pancreatic solid lesion and has a poor prognosis because of late-stage disease at diagnosis. Pancreatic neuroendocrine tumors (P-NETs) are less common but have malignant potential.
EUS is the “gold standard” for pancreatic lesion evaluation, but its diagnostic accuracy is suboptimal, particularly for lesions < 10 mm, Mascarenhas noted.
With an eye toward improving diagnostic accuracy, he and colleagues developed a convolutional neural network for detecting and differentiating cystic (M-PCL and NM-PCL) and solid (P-DAC and P-NET) pancreatic lesions.
They leveraged data from 378 EUS exams with 126,000 still images — 19,528 M-PCL, 8175 NM-PCL, 64,286 P-DAC, 29,153 P-NET, and 4858 normal pancreas images.
The AI tool demonstrated 99.1% accuracy for identifying normal pancreatic tissue, and it showed 99% and 99.8% accuracy for M-PCL and NM-PCL, respectively.
For pancreatic solid lesions, P-DAC and P-NET were distinguished with 94% accuracy, with 98.7% and 83.6% sensitivity for P-DAC and P-NET, respectively.
Real-Time Validation Next
“AI is delivering promising results throughout medicine, but particularly in gastroenterology, which is one of the most fertile areas of AI research. This comes mostly from the deployment of deep-learning models, most of them convolutional neural networks, which are highly efficient for image analysis,” Mascarenhas told attendees.
This is the “first worldwide convolutional neural network” capable of detecting and differentiating both cystic and solid pancreatic lesions. The use of a large dataset from four centers in two continents helps minimize the impact of demographic bias, Mascarenhas added.
The study is based on still images, not full videos, he noted. As a next step, the team is conducting a multicenter study focused on real-time clinical validation of the model during EUS procedures.
“AI has the potential to improve the diagnostic accuracy of endoscopic ultrasound. We’re just on the tip of the iceberg. There is enormous potential to harness AI, and we welcome all the groups that might want to join our research,” Mascarenhas said.
Brennan Spiegel, MD, MSHS, AGAF, director of Health Services Research at Cedars-Sinai Medical Center, Los Angeles, who wasn’t involved in the study, is optimistic about emerging applications for AI.
“AI holds incredible promise in gastroenterology, especially for diagnosing complex pancreatic lesions where early, accurate differentiation can be lifesaving,” Spiegel said in an interview.
“This study’s high accuracy across diverse datasets is encouraging; however, as a retrospective analysis, it leaves the real-time clinical impact still to be proven. Prospective studies will be essential to confirm AI’s role in enhancing our diagnostic capabilities,” Spiegel cautioned.
“More generally, AI is rapidly transforming gastroenterology by enhancing our ability to detect, differentiate, and monitor conditions with unprecedented precision. From improving early cancer detection to guiding complex diagnostic procedures, AI stands to become an invaluable tool that complements clinical expertise. As we refine these technologies, the potential for AI to elevate both diagnostic accuracy and patient outcomes in GI is truly remarkable,” Spiegel said.
The study had no specific funding. Mascarenhas and Spiegel have declared no conflicts of interest.
A version of this article appeared on Medscape.com.
PHILADELPHIA —
This was a transatlantic collaborative effort involving researchers in Portugal, Spain, the United States, and Brazil, and the AI tool “works on different platforms and different devices,” Miguel Mascarenhas, MD, PhD, with Centro Hospitalar Universitário de São João, Porto, Portugal, said in a presentation at the annual meeting of the American College of Gastroenterology.
Mascarenhas noted that pancreatic cystic lesions (PCLs) are a common incidental finding during imaging and are differentiated by whether they’re mucinous PCLs (M-PCLs) or non-mucinous PCLs (NM-PCLs). The malignancy risk is almost exclusive of PCL with a mucinous phenotype.
Pancreatic solid lesions are also prevalent, and differentiation is challenging. Pancreatic ductal adenocarcinoma (P-DAC) is the most common pancreatic solid lesion and has a poor prognosis because of late-stage disease at diagnosis. Pancreatic neuroendocrine tumors (P-NETs) are less common but have malignant potential.
EUS is the “gold standard” for pancreatic lesion evaluation, but its diagnostic accuracy is suboptimal, particularly for lesions < 10 mm, Mascarenhas noted.
With an eye toward improving diagnostic accuracy, he and colleagues developed a convolutional neural network for detecting and differentiating cystic (M-PCL and NM-PCL) and solid (P-DAC and P-NET) pancreatic lesions.
They leveraged data from 378 EUS exams with 126,000 still images — 19,528 M-PCL, 8175 NM-PCL, 64,286 P-DAC, 29,153 P-NET, and 4858 normal pancreas images.
The AI tool demonstrated 99.1% accuracy for identifying normal pancreatic tissue, and it showed 99% and 99.8% accuracy for M-PCL and NM-PCL, respectively.
For pancreatic solid lesions, P-DAC and P-NET were distinguished with 94% accuracy, with 98.7% and 83.6% sensitivity for P-DAC and P-NET, respectively.
Real-Time Validation Next
“AI is delivering promising results throughout medicine, but particularly in gastroenterology, which is one of the most fertile areas of AI research. This comes mostly from the deployment of deep-learning models, most of them convolutional neural networks, which are highly efficient for image analysis,” Mascarenhas told attendees.
This is the “first worldwide convolutional neural network” capable of detecting and differentiating both cystic and solid pancreatic lesions. The use of a large dataset from four centers in two continents helps minimize the impact of demographic bias, Mascarenhas added.
The study is based on still images, not full videos, he noted. As a next step, the team is conducting a multicenter study focused on real-time clinical validation of the model during EUS procedures.
“AI has the potential to improve the diagnostic accuracy of endoscopic ultrasound. We’re just on the tip of the iceberg. There is enormous potential to harness AI, and we welcome all the groups that might want to join our research,” Mascarenhas said.
Brennan Spiegel, MD, MSHS, AGAF, director of Health Services Research at Cedars-Sinai Medical Center, Los Angeles, who wasn’t involved in the study, is optimistic about emerging applications for AI.
“AI holds incredible promise in gastroenterology, especially for diagnosing complex pancreatic lesions where early, accurate differentiation can be lifesaving,” Spiegel said in an interview.
“This study’s high accuracy across diverse datasets is encouraging; however, as a retrospective analysis, it leaves the real-time clinical impact still to be proven. Prospective studies will be essential to confirm AI’s role in enhancing our diagnostic capabilities,” Spiegel cautioned.
“More generally, AI is rapidly transforming gastroenterology by enhancing our ability to detect, differentiate, and monitor conditions with unprecedented precision. From improving early cancer detection to guiding complex diagnostic procedures, AI stands to become an invaluable tool that complements clinical expertise. As we refine these technologies, the potential for AI to elevate both diagnostic accuracy and patient outcomes in GI is truly remarkable,” Spiegel said.
The study had no specific funding. Mascarenhas and Spiegel have declared no conflicts of interest.
A version of this article appeared on Medscape.com.
PHILADELPHIA —
This was a transatlantic collaborative effort involving researchers in Portugal, Spain, the United States, and Brazil, and the AI tool “works on different platforms and different devices,” Miguel Mascarenhas, MD, PhD, with Centro Hospitalar Universitário de São João, Porto, Portugal, said in a presentation at the annual meeting of the American College of Gastroenterology.
Mascarenhas noted that pancreatic cystic lesions (PCLs) are a common incidental finding during imaging and are differentiated by whether they’re mucinous PCLs (M-PCLs) or non-mucinous PCLs (NM-PCLs). The malignancy risk is almost exclusive of PCL with a mucinous phenotype.
Pancreatic solid lesions are also prevalent, and differentiation is challenging. Pancreatic ductal adenocarcinoma (P-DAC) is the most common pancreatic solid lesion and has a poor prognosis because of late-stage disease at diagnosis. Pancreatic neuroendocrine tumors (P-NETs) are less common but have malignant potential.
EUS is the “gold standard” for pancreatic lesion evaluation, but its diagnostic accuracy is suboptimal, particularly for lesions < 10 mm, Mascarenhas noted.
With an eye toward improving diagnostic accuracy, he and colleagues developed a convolutional neural network for detecting and differentiating cystic (M-PCL and NM-PCL) and solid (P-DAC and P-NET) pancreatic lesions.
They leveraged data from 378 EUS exams with 126,000 still images — 19,528 M-PCL, 8175 NM-PCL, 64,286 P-DAC, 29,153 P-NET, and 4858 normal pancreas images.
The AI tool demonstrated 99.1% accuracy for identifying normal pancreatic tissue, and it showed 99% and 99.8% accuracy for M-PCL and NM-PCL, respectively.
For pancreatic solid lesions, P-DAC and P-NET were distinguished with 94% accuracy, with 98.7% and 83.6% sensitivity for P-DAC and P-NET, respectively.
Real-Time Validation Next
“AI is delivering promising results throughout medicine, but particularly in gastroenterology, which is one of the most fertile areas of AI research. This comes mostly from the deployment of deep-learning models, most of them convolutional neural networks, which are highly efficient for image analysis,” Mascarenhas told attendees.
This is the “first worldwide convolutional neural network” capable of detecting and differentiating both cystic and solid pancreatic lesions. The use of a large dataset from four centers in two continents helps minimize the impact of demographic bias, Mascarenhas added.
The study is based on still images, not full videos, he noted. As a next step, the team is conducting a multicenter study focused on real-time clinical validation of the model during EUS procedures.
“AI has the potential to improve the diagnostic accuracy of endoscopic ultrasound. We’re just on the tip of the iceberg. There is enormous potential to harness AI, and we welcome all the groups that might want to join our research,” Mascarenhas said.
Brennan Spiegel, MD, MSHS, AGAF, director of Health Services Research at Cedars-Sinai Medical Center, Los Angeles, who wasn’t involved in the study, is optimistic about emerging applications for AI.
“AI holds incredible promise in gastroenterology, especially for diagnosing complex pancreatic lesions where early, accurate differentiation can be lifesaving,” Spiegel said in an interview.
“This study’s high accuracy across diverse datasets is encouraging; however, as a retrospective analysis, it leaves the real-time clinical impact still to be proven. Prospective studies will be essential to confirm AI’s role in enhancing our diagnostic capabilities,” Spiegel cautioned.
“More generally, AI is rapidly transforming gastroenterology by enhancing our ability to detect, differentiate, and monitor conditions with unprecedented precision. From improving early cancer detection to guiding complex diagnostic procedures, AI stands to become an invaluable tool that complements clinical expertise. As we refine these technologies, the potential for AI to elevate both diagnostic accuracy and patient outcomes in GI is truly remarkable,” Spiegel said.
The study had no specific funding. Mascarenhas and Spiegel have declared no conflicts of interest.
A version of this article appeared on Medscape.com.
FROM ACG 2024