LayerRx Mapping ID
719
Slot System
Featured Buckets
Featured Buckets Admin
Reverse Chronological Sort
Allow Teaser Image

All guts and glory – esophagus, stomach, small intestine

Article Type
Changed

Prakash Gyawali, MD, led off the session with a lecture on functional heartburn, which he defined as burning retrosternal discomfort not relieved by antisecretory therapy, in a patient for whom endoscopy, esophageal pH monitoring, and manometry have revealed no evidence of gastroesophageal reflux disease (GERD), eosinophilic esophagitis (EoE), or major esophageal motility disorders. When performing pH monitoring to assess for functional heartburn, Dr. Gyawali advised that the test be done with patients off of proton pump inhibitors (PPIs). Despite similarity to the heartburn sensation of GERD, Dr. Gyawali pointed out how functional heartburn has features resembling irritable bowel syndrome, such as its association with anxiety and depression, and its response to neuromodulators (e.g., antidepressants). He discussed how new impedance-based esophageal metrics such as the postswallow-induced peristaltic wave index and measurement of mean nocturnal baseline impedance might be used to confirm a diagnosis of functional heartburn. Although neuromodulators remain the mainstay of management for functional heartburn, Dr. Gyawali discussed encouraging preliminary results of studies on psychotherapy, hypnotherapy, and alternative therapies such as acupuncture.

Rhonda Souza, MD, AGAF, discussed EoE, focusing especially on the controversial condition of PPI-responsive esophageal eosinophilia (PPI-REE) in which patients have typical EoE symptoms and histology, with no evidence of GERD by endoscopy or esophageal pH monitoring, yet they respond to PPI therapy. She discussed two possible explanations for PPI-REE: 1) the patients have subclinical GERD that responds to PPI antisecretory effects, or 2) the patients have EoE that responds to PPI anti-inflammatory effects. Dr. Souza reviewed data from her laboratory showing that omeprazole can block the secretion of eotaxin-3, a potent eosinophil chemoattractant in esophageal epithelial cells stimulated with allergic (Th2) cytokines in vitro. This potential anti-inflammatory PPI effect is entirely independent of any effect on gastric acid inhibition. After reviewing recent clinical and esophageal transcriptome data, Dr. Souza concluded that PPI-REE is probably just a subset of EoE, not an independent disorder.

John Inadomi, MD, AGAF, discussed Barrett’s esophagus and esophageal adenocarcinoma. He pointed out the inadequacy of current screening programs, noting studies showing that less than 10% of patients found to have esophageal adenocarcinoma had a prior diagnosis of Barrett’s esophagus. He estimated the annual incidence of adenocarcinoma at 0.12%-0.5% for patients with nondysplastic Barrett’s metaplasia. He discussed how current American College of Gastroenterology guidelines call for screening men who have chronic GERD symptoms with at least two other Barrett’s cancer risk factors (age greater than 50 years, white race, central obesity, cigarette smoking, family history of Barrett’s esophagus), and noted how the very low risk of esophageal adenocarcinoma in women (similar to the risk of breast cancer in men) supports the ACG recommendation not to screen women routinely for Barrett’s esophagus. Dr. Inadomi recommended endoscopic eradication as the preferred treatment for patients with confirmed dysplasia of any grade. He also noted that the removal of nodular lesions by endoscopic mucosal resection or endoscopic submucosal dissection is a crucial part of endoscopic eradication therapy.

In a lecture titled “The truth about PPIs,” Byron Cryer, MD, reviewed a number of potential adverse effects of PPIs, including Clostridium difficileassociated diarrhea, bone fractures, kidney disease, dementia, myocardial infarction, and interactions with clopidogrel. He pointed out that most of these putative adverse effects have been identified as modest increases in risks noted in observational studies, and the quality of this evidence is considered low or very low. In contrast, the benefits of PPIs for patients with complicated GERD and for patients at risk for NSAID complications have been established in high-quality, randomized controlled trials. Dr. Cryer concluded that, when PPIs are prescribed appropriately, their benefits likely outweigh their risks. However, he also noted that PPIs frequently are prescribed inappropriately, in which case they have no benefit and their potential for risk assumes greater importance.



Sheila Crowe, MD, AGAF, delivered the last lecture of the session, discussing celiac disease and gluten sensitivity. She reviewed recent data suggesting a role for infection with reovirus in triggering the development of celiac disease, and she noted that tissue transglutaminase IgA remains the best test to screen for the condition. She discussed the controversial topic of nonceliac gluten sensitivity, in which patients report symptoms or health alterations that they perceive to be the result of gluten ingestion. She pointed out difficulties in establishing an unequivocal diagnosis of nonceliac gluten sensitivity and, for patients without celiac disease, she highlighted a number of potential drawbacks of a gluten-free diet, including its expense, higher fat and sugar content, and increased levels of toxic metals such as arsenic and mercury.
 

 

 

Dr. Spechler is chief of the division of gastroenterology and co-director of the Center for Esophageal Diseases, Baylor University Medical Center at Dallas; he is an investigator/professor and co-director of the Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas. This is a summary provided by the moderator of one of the AGA Postgraduate Courses held at DDW 2017.

Meeting/Event
Publications
Topics
Sections
Meeting/Event
Meeting/Event

Prakash Gyawali, MD, led off the session with a lecture on functional heartburn, which he defined as burning retrosternal discomfort not relieved by antisecretory therapy, in a patient for whom endoscopy, esophageal pH monitoring, and manometry have revealed no evidence of gastroesophageal reflux disease (GERD), eosinophilic esophagitis (EoE), or major esophageal motility disorders. When performing pH monitoring to assess for functional heartburn, Dr. Gyawali advised that the test be done with patients off of proton pump inhibitors (PPIs). Despite similarity to the heartburn sensation of GERD, Dr. Gyawali pointed out how functional heartburn has features resembling irritable bowel syndrome, such as its association with anxiety and depression, and its response to neuromodulators (e.g., antidepressants). He discussed how new impedance-based esophageal metrics such as the postswallow-induced peristaltic wave index and measurement of mean nocturnal baseline impedance might be used to confirm a diagnosis of functional heartburn. Although neuromodulators remain the mainstay of management for functional heartburn, Dr. Gyawali discussed encouraging preliminary results of studies on psychotherapy, hypnotherapy, and alternative therapies such as acupuncture.

Rhonda Souza, MD, AGAF, discussed EoE, focusing especially on the controversial condition of PPI-responsive esophageal eosinophilia (PPI-REE) in which patients have typical EoE symptoms and histology, with no evidence of GERD by endoscopy or esophageal pH monitoring, yet they respond to PPI therapy. She discussed two possible explanations for PPI-REE: 1) the patients have subclinical GERD that responds to PPI antisecretory effects, or 2) the patients have EoE that responds to PPI anti-inflammatory effects. Dr. Souza reviewed data from her laboratory showing that omeprazole can block the secretion of eotaxin-3, a potent eosinophil chemoattractant in esophageal epithelial cells stimulated with allergic (Th2) cytokines in vitro. This potential anti-inflammatory PPI effect is entirely independent of any effect on gastric acid inhibition. After reviewing recent clinical and esophageal transcriptome data, Dr. Souza concluded that PPI-REE is probably just a subset of EoE, not an independent disorder.

John Inadomi, MD, AGAF, discussed Barrett’s esophagus and esophageal adenocarcinoma. He pointed out the inadequacy of current screening programs, noting studies showing that less than 10% of patients found to have esophageal adenocarcinoma had a prior diagnosis of Barrett’s esophagus. He estimated the annual incidence of adenocarcinoma at 0.12%-0.5% for patients with nondysplastic Barrett’s metaplasia. He discussed how current American College of Gastroenterology guidelines call for screening men who have chronic GERD symptoms with at least two other Barrett’s cancer risk factors (age greater than 50 years, white race, central obesity, cigarette smoking, family history of Barrett’s esophagus), and noted how the very low risk of esophageal adenocarcinoma in women (similar to the risk of breast cancer in men) supports the ACG recommendation not to screen women routinely for Barrett’s esophagus. Dr. Inadomi recommended endoscopic eradication as the preferred treatment for patients with confirmed dysplasia of any grade. He also noted that the removal of nodular lesions by endoscopic mucosal resection or endoscopic submucosal dissection is a crucial part of endoscopic eradication therapy.

In a lecture titled “The truth about PPIs,” Byron Cryer, MD, reviewed a number of potential adverse effects of PPIs, including Clostridium difficileassociated diarrhea, bone fractures, kidney disease, dementia, myocardial infarction, and interactions with clopidogrel. He pointed out that most of these putative adverse effects have been identified as modest increases in risks noted in observational studies, and the quality of this evidence is considered low or very low. In contrast, the benefits of PPIs for patients with complicated GERD and for patients at risk for NSAID complications have been established in high-quality, randomized controlled trials. Dr. Cryer concluded that, when PPIs are prescribed appropriately, their benefits likely outweigh their risks. However, he also noted that PPIs frequently are prescribed inappropriately, in which case they have no benefit and their potential for risk assumes greater importance.



Sheila Crowe, MD, AGAF, delivered the last lecture of the session, discussing celiac disease and gluten sensitivity. She reviewed recent data suggesting a role for infection with reovirus in triggering the development of celiac disease, and she noted that tissue transglutaminase IgA remains the best test to screen for the condition. She discussed the controversial topic of nonceliac gluten sensitivity, in which patients report symptoms or health alterations that they perceive to be the result of gluten ingestion. She pointed out difficulties in establishing an unequivocal diagnosis of nonceliac gluten sensitivity and, for patients without celiac disease, she highlighted a number of potential drawbacks of a gluten-free diet, including its expense, higher fat and sugar content, and increased levels of toxic metals such as arsenic and mercury.
 

 

 

Dr. Spechler is chief of the division of gastroenterology and co-director of the Center for Esophageal Diseases, Baylor University Medical Center at Dallas; he is an investigator/professor and co-director of the Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas. This is a summary provided by the moderator of one of the AGA Postgraduate Courses held at DDW 2017.

Prakash Gyawali, MD, led off the session with a lecture on functional heartburn, which he defined as burning retrosternal discomfort not relieved by antisecretory therapy, in a patient for whom endoscopy, esophageal pH monitoring, and manometry have revealed no evidence of gastroesophageal reflux disease (GERD), eosinophilic esophagitis (EoE), or major esophageal motility disorders. When performing pH monitoring to assess for functional heartburn, Dr. Gyawali advised that the test be done with patients off of proton pump inhibitors (PPIs). Despite similarity to the heartburn sensation of GERD, Dr. Gyawali pointed out how functional heartburn has features resembling irritable bowel syndrome, such as its association with anxiety and depression, and its response to neuromodulators (e.g., antidepressants). He discussed how new impedance-based esophageal metrics such as the postswallow-induced peristaltic wave index and measurement of mean nocturnal baseline impedance might be used to confirm a diagnosis of functional heartburn. Although neuromodulators remain the mainstay of management for functional heartburn, Dr. Gyawali discussed encouraging preliminary results of studies on psychotherapy, hypnotherapy, and alternative therapies such as acupuncture.

Rhonda Souza, MD, AGAF, discussed EoE, focusing especially on the controversial condition of PPI-responsive esophageal eosinophilia (PPI-REE) in which patients have typical EoE symptoms and histology, with no evidence of GERD by endoscopy or esophageal pH monitoring, yet they respond to PPI therapy. She discussed two possible explanations for PPI-REE: 1) the patients have subclinical GERD that responds to PPI antisecretory effects, or 2) the patients have EoE that responds to PPI anti-inflammatory effects. Dr. Souza reviewed data from her laboratory showing that omeprazole can block the secretion of eotaxin-3, a potent eosinophil chemoattractant in esophageal epithelial cells stimulated with allergic (Th2) cytokines in vitro. This potential anti-inflammatory PPI effect is entirely independent of any effect on gastric acid inhibition. After reviewing recent clinical and esophageal transcriptome data, Dr. Souza concluded that PPI-REE is probably just a subset of EoE, not an independent disorder.

John Inadomi, MD, AGAF, discussed Barrett’s esophagus and esophageal adenocarcinoma. He pointed out the inadequacy of current screening programs, noting studies showing that less than 10% of patients found to have esophageal adenocarcinoma had a prior diagnosis of Barrett’s esophagus. He estimated the annual incidence of adenocarcinoma at 0.12%-0.5% for patients with nondysplastic Barrett’s metaplasia. He discussed how current American College of Gastroenterology guidelines call for screening men who have chronic GERD symptoms with at least two other Barrett’s cancer risk factors (age greater than 50 years, white race, central obesity, cigarette smoking, family history of Barrett’s esophagus), and noted how the very low risk of esophageal adenocarcinoma in women (similar to the risk of breast cancer in men) supports the ACG recommendation not to screen women routinely for Barrett’s esophagus. Dr. Inadomi recommended endoscopic eradication as the preferred treatment for patients with confirmed dysplasia of any grade. He also noted that the removal of nodular lesions by endoscopic mucosal resection or endoscopic submucosal dissection is a crucial part of endoscopic eradication therapy.

In a lecture titled “The truth about PPIs,” Byron Cryer, MD, reviewed a number of potential adverse effects of PPIs, including Clostridium difficileassociated diarrhea, bone fractures, kidney disease, dementia, myocardial infarction, and interactions with clopidogrel. He pointed out that most of these putative adverse effects have been identified as modest increases in risks noted in observational studies, and the quality of this evidence is considered low or very low. In contrast, the benefits of PPIs for patients with complicated GERD and for patients at risk for NSAID complications have been established in high-quality, randomized controlled trials. Dr. Cryer concluded that, when PPIs are prescribed appropriately, their benefits likely outweigh their risks. However, he also noted that PPIs frequently are prescribed inappropriately, in which case they have no benefit and their potential for risk assumes greater importance.



Sheila Crowe, MD, AGAF, delivered the last lecture of the session, discussing celiac disease and gluten sensitivity. She reviewed recent data suggesting a role for infection with reovirus in triggering the development of celiac disease, and she noted that tissue transglutaminase IgA remains the best test to screen for the condition. She discussed the controversial topic of nonceliac gluten sensitivity, in which patients report symptoms or health alterations that they perceive to be the result of gluten ingestion. She pointed out difficulties in establishing an unequivocal diagnosis of nonceliac gluten sensitivity and, for patients without celiac disease, she highlighted a number of potential drawbacks of a gluten-free diet, including its expense, higher fat and sugar content, and increased levels of toxic metals such as arsenic and mercury.
 

 

 

Dr. Spechler is chief of the division of gastroenterology and co-director of the Center for Esophageal Diseases, Baylor University Medical Center at Dallas; he is an investigator/professor and co-director of the Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas. This is a summary provided by the moderator of one of the AGA Postgraduate Courses held at DDW 2017.

Publications
Publications
Topics
Article Type
Sections
Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
Disqus Comments
Default

Minimally invasive screening for Barrett’s esophagus offers cost-effective alternative

Article Type
Changed

 

The high costs of endoscopy make screening patients with gastroesophageal reflux disease (GERD) for Barrett’s esophagus a costly endeavor. But using a minimally invasive test followed by endoscopy only if results are positive could cut costs by up to 41%, according to investigators.

The report is in the September issue of Clinical Gastroenterology and Hepatology (doi: 10.1016/j.cgh.2017.02.017).

The findings mirror those from a prior study (Gastroenterology. 2013 Jan;144[1]:62-73.e60) of the new cytosponge device, which tests surface esophageal tissue for trefoil factor 3, a biomarker for Barrett’s esophagus, said Curtis R. Heberle, of Massachusetts General Hospital in Boston, and his associates. In addition, two separate models found the cytosponge strategy cost effective compared with no screening (incremental cost-effectiveness ratios [ICERs], about $26,000-$33,000). However, using the cytosponge instead of screening all GERD patients with endoscopy would reduce quality-adjusted life-years (QALYs) by about 1.8-5.5 years for every 1,000 patients.

Rates of esophageal adenocarcinoma have climbed more than sixfold in the United States in 4 decades, and 5-year survival rates remain below 20%. Nonetheless, the high cost of endoscopy and 10%-20% prevalence of GERD makes screening all patients for Barrett’s esophagus infeasible. To evaluate the cytosponge strategy, the researchers fit data from the multicenter BEST2 study (PLoS Med. 2015 Jan; 12[1]: e1001780) into two validated models calibrated to high-quality Surveillance, Epidemiology and End Results (SEER) data on esophageal cancer. Both models compared no screening with a one-time screen by either endoscopy alone or cytosponge with follow-up endoscopy in the event of a positive test. The models assumed patients were male, were 60 years old, and had GERD but not esophageal adenocarcinoma.

Without screening, there were about 14-16 cancer cases and about 15,077 quality-adjusted life years (QALYs) for every 1,000 patients. The cytosponge strategy was associated with about 8-13 cancer cases and about 15,105 QALYs. Endoscopic screening produced the most benefit overall – only about 7-12 cancer cases, with more than 15,100 QALYs. “However, greater benefits were accompanied by higher total costs,” the researchers said. For every 1,000 patients, no screening cost about $704,000 to $762,000, the cytosponge strategy cost about $1.5 to $1.6 million, and population-wide endoscopy cost about $2.1 to $2.2 million. Thus, the cytosponge method would lower the cost of screening by 37%-41% compared with endoscopically screening all men with GERD. The cytosponge was also cost effective in a model of 60-year-old women with GERD.

Using only endoscopic screening was not cost effective in either model, exceeding a $100,000 threshold of willingness to pay by anywhere from $107,000 to $330,000. The cytosponge is not yet available commercially, but the investigators assumed it cost $182 based on information from the manufacturer (Medtronic) and Medicare payments for similar devices. Although the findings withstood variations in indirect costs and age at initial screening, they were “somewhat sensitive” to variations in costs of the cytosponge and its presumed sensitivity and specificity in clinical settings. However, endoscopic screening only became cost effective when the cytosponge test cost at least $225.

The models assumed perfect adherence to screening, which probably exaggerated the effectiveness of the cytosponge and endoscopic screening, the investigators said. They noted that cytosponge screening can be performed without sedation during a short outpatient visit.

The National Institutes of Health provided funding. The investigators had no relevant disclosures.

Publications
Topics
Sections

 

The high costs of endoscopy make screening patients with gastroesophageal reflux disease (GERD) for Barrett’s esophagus a costly endeavor. But using a minimally invasive test followed by endoscopy only if results are positive could cut costs by up to 41%, according to investigators.

The report is in the September issue of Clinical Gastroenterology and Hepatology (doi: 10.1016/j.cgh.2017.02.017).

The findings mirror those from a prior study (Gastroenterology. 2013 Jan;144[1]:62-73.e60) of the new cytosponge device, which tests surface esophageal tissue for trefoil factor 3, a biomarker for Barrett’s esophagus, said Curtis R. Heberle, of Massachusetts General Hospital in Boston, and his associates. In addition, two separate models found the cytosponge strategy cost effective compared with no screening (incremental cost-effectiveness ratios [ICERs], about $26,000-$33,000). However, using the cytosponge instead of screening all GERD patients with endoscopy would reduce quality-adjusted life-years (QALYs) by about 1.8-5.5 years for every 1,000 patients.

Rates of esophageal adenocarcinoma have climbed more than sixfold in the United States in 4 decades, and 5-year survival rates remain below 20%. Nonetheless, the high cost of endoscopy and 10%-20% prevalence of GERD makes screening all patients for Barrett’s esophagus infeasible. To evaluate the cytosponge strategy, the researchers fit data from the multicenter BEST2 study (PLoS Med. 2015 Jan; 12[1]: e1001780) into two validated models calibrated to high-quality Surveillance, Epidemiology and End Results (SEER) data on esophageal cancer. Both models compared no screening with a one-time screen by either endoscopy alone or cytosponge with follow-up endoscopy in the event of a positive test. The models assumed patients were male, were 60 years old, and had GERD but not esophageal adenocarcinoma.

Without screening, there were about 14-16 cancer cases and about 15,077 quality-adjusted life years (QALYs) for every 1,000 patients. The cytosponge strategy was associated with about 8-13 cancer cases and about 15,105 QALYs. Endoscopic screening produced the most benefit overall – only about 7-12 cancer cases, with more than 15,100 QALYs. “However, greater benefits were accompanied by higher total costs,” the researchers said. For every 1,000 patients, no screening cost about $704,000 to $762,000, the cytosponge strategy cost about $1.5 to $1.6 million, and population-wide endoscopy cost about $2.1 to $2.2 million. Thus, the cytosponge method would lower the cost of screening by 37%-41% compared with endoscopically screening all men with GERD. The cytosponge was also cost effective in a model of 60-year-old women with GERD.

Using only endoscopic screening was not cost effective in either model, exceeding a $100,000 threshold of willingness to pay by anywhere from $107,000 to $330,000. The cytosponge is not yet available commercially, but the investigators assumed it cost $182 based on information from the manufacturer (Medtronic) and Medicare payments for similar devices. Although the findings withstood variations in indirect costs and age at initial screening, they were “somewhat sensitive” to variations in costs of the cytosponge and its presumed sensitivity and specificity in clinical settings. However, endoscopic screening only became cost effective when the cytosponge test cost at least $225.

The models assumed perfect adherence to screening, which probably exaggerated the effectiveness of the cytosponge and endoscopic screening, the investigators said. They noted that cytosponge screening can be performed without sedation during a short outpatient visit.

The National Institutes of Health provided funding. The investigators had no relevant disclosures.

 

The high costs of endoscopy make screening patients with gastroesophageal reflux disease (GERD) for Barrett’s esophagus a costly endeavor. But using a minimally invasive test followed by endoscopy only if results are positive could cut costs by up to 41%, according to investigators.

The report is in the September issue of Clinical Gastroenterology and Hepatology (doi: 10.1016/j.cgh.2017.02.017).

The findings mirror those from a prior study (Gastroenterology. 2013 Jan;144[1]:62-73.e60) of the new cytosponge device, which tests surface esophageal tissue for trefoil factor 3, a biomarker for Barrett’s esophagus, said Curtis R. Heberle, of Massachusetts General Hospital in Boston, and his associates. In addition, two separate models found the cytosponge strategy cost effective compared with no screening (incremental cost-effectiveness ratios [ICERs], about $26,000-$33,000). However, using the cytosponge instead of screening all GERD patients with endoscopy would reduce quality-adjusted life-years (QALYs) by about 1.8-5.5 years for every 1,000 patients.

Rates of esophageal adenocarcinoma have climbed more than sixfold in the United States in 4 decades, and 5-year survival rates remain below 20%. Nonetheless, the high cost of endoscopy and 10%-20% prevalence of GERD makes screening all patients for Barrett’s esophagus infeasible. To evaluate the cytosponge strategy, the researchers fit data from the multicenter BEST2 study (PLoS Med. 2015 Jan; 12[1]: e1001780) into two validated models calibrated to high-quality Surveillance, Epidemiology and End Results (SEER) data on esophageal cancer. Both models compared no screening with a one-time screen by either endoscopy alone or cytosponge with follow-up endoscopy in the event of a positive test. The models assumed patients were male, were 60 years old, and had GERD but not esophageal adenocarcinoma.

Without screening, there were about 14-16 cancer cases and about 15,077 quality-adjusted life years (QALYs) for every 1,000 patients. The cytosponge strategy was associated with about 8-13 cancer cases and about 15,105 QALYs. Endoscopic screening produced the most benefit overall – only about 7-12 cancer cases, with more than 15,100 QALYs. “However, greater benefits were accompanied by higher total costs,” the researchers said. For every 1,000 patients, no screening cost about $704,000 to $762,000, the cytosponge strategy cost about $1.5 to $1.6 million, and population-wide endoscopy cost about $2.1 to $2.2 million. Thus, the cytosponge method would lower the cost of screening by 37%-41% compared with endoscopically screening all men with GERD. The cytosponge was also cost effective in a model of 60-year-old women with GERD.

Using only endoscopic screening was not cost effective in either model, exceeding a $100,000 threshold of willingness to pay by anywhere from $107,000 to $330,000. The cytosponge is not yet available commercially, but the investigators assumed it cost $182 based on information from the manufacturer (Medtronic) and Medicare payments for similar devices. Although the findings withstood variations in indirect costs and age at initial screening, they were “somewhat sensitive” to variations in costs of the cytosponge and its presumed sensitivity and specificity in clinical settings. However, endoscopic screening only became cost effective when the cytosponge test cost at least $225.

The models assumed perfect adherence to screening, which probably exaggerated the effectiveness of the cytosponge and endoscopic screening, the investigators said. They noted that cytosponge screening can be performed without sedation during a short outpatient visit.

The National Institutes of Health provided funding. The investigators had no relevant disclosures.

Publications
Publications
Topics
Article Type
Click for Credit Status
Ready
Sections
Article Source

FROM CLINICAL GASTROENTEROLOGY AND HEPATOLOGY 

Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
Vitals

 

Key clinical point: Using a minimally invasive screen for Barrett’s esophagus and following up with endoscopy if results are positive is a cost-effective alternative to endoscopy alone in patients with gastroesophageal reflux disease.

Major finding: The two-step screening strategy cut screening costs by 37%-41% but was associated with 1.8-5.5 fewer quality-adjusted life years for every 1,000 patients with GERD.

Data source: Two validated models based on Surveillance, Epidemiology, and End Results data, and data from the multicenter BEST2 trial.

Disclosures: The National Institutes of Health provided funding. The investigators had no relevant disclosures.

Disqus Comments
Default

Relamorelin for diabetic gastroparesis: Trial results

Article Type
Changed

 

Gastroparesis is defined as delayed gastric emptying with associated symptoms in the absence of mechanical obstruction. The cardinal symptoms are upper abdominal pain, postprandial fullness, bloating, early satiety, nausea, and, with more severe disease, vomiting. Weight loss, malnutrition, dehydration, electrolyte imbalance, bezoar formation, and aspiration pneumonia may occur in advanced cases. Unfortunately, there are few approved or efficacious treatment options for diabetic gastroparesis. The 5-HT4 receptor agonist, cisapride, has been withdrawn from the prescription markets in most countries.

AGA Institute
Dr. Michael Camilleri
Relamorelin (RM-131) is a selective pentapeptide ghrelin receptor agonist with potent prokinetic properties. A prior phase 2a study showed that 10 microg b.i.d. relamorelin subcutaneously for 4 weeks had prokinetic activity and relieved symptoms of diabetic gastroparesis, especially in patients with vomiting at baseline.

The study aim was to evaluate the efficacy of relamorelin on disease symptoms and gastric emptying in moderate to severe diabetic gastroparesis. In a 12-week, double-blind, placebo-controlled, parallel-group, randomized, controlled trial, with a 2-week, single-blind placebo run-in, patients were randomized to 10 microg b.i.d., 30 microg b.i.d., 100 microg b.i.d., or placebo b.i.d. Patients completed a daily e-diary of symptoms (Diabetic Gastroparesis Symptom Severity Diary [DGSSD]: nausea, abdominal pain, postprandial fullness, and bloating on a 0–10 scale) and vomiting episodes, which were summarized by treatment week. The primary endpoint was a change from baseline in vomiting frequency; a key secondary endpoint was change from baseline in a four-symptom composite of DGSSD symptoms.

A longitudinal analysis over the 12-week trial showed there were reductions in nausea, postprandial fullness, abdominal pain, and bloating individually and as a composite score. Relamorelin accelerated gastric emptying T1/2 at all three doses compared with placebo. However, there were no effects on vomiting frequency, which showed a high placebo response. More hyperglycemia events and diarrhea events were observed with relamorelin treatment compared with placebo. The diarrhea reflects the previously demonstrated stimulation of colonic transit and motility and reduction of symptoms of constipation in patients with chronic constipation. The hyperglycemia likely resulted from accelerated gastric emptying rather than potential inhibition of insulin production, which has been reported with high levels of ghrelin in animal studies or with high levels of ghrelin associated with starvation.

Thus, relamorelin demonstrated substantially improved core symptoms of diabetic gastroparesis, was generally safe and well tolerated, and should be further assessed in pivotal phase 3 trials. The results in this trial suggest that there is no dose-response relationship between the three doses of relamorelin tested and that future trials of relamorelin might not need to include the 100-microg b.i.d. dose. Importantly, this study also suggests the importance to prospectively manage the hyperglycemia in future trials.

Dr. Camilleri is a faculty member in the department of gastroenterology and hepatology at the Mayo Clinic in Rochester, Minn. His comments were made during the AGA Institute Presidential Plenary at the Annual Digestive Disease Week.

Meeting/Event
Publications
Topics
Sections
Meeting/Event
Meeting/Event

 

Gastroparesis is defined as delayed gastric emptying with associated symptoms in the absence of mechanical obstruction. The cardinal symptoms are upper abdominal pain, postprandial fullness, bloating, early satiety, nausea, and, with more severe disease, vomiting. Weight loss, malnutrition, dehydration, electrolyte imbalance, bezoar formation, and aspiration pneumonia may occur in advanced cases. Unfortunately, there are few approved or efficacious treatment options for diabetic gastroparesis. The 5-HT4 receptor agonist, cisapride, has been withdrawn from the prescription markets in most countries.

AGA Institute
Dr. Michael Camilleri
Relamorelin (RM-131) is a selective pentapeptide ghrelin receptor agonist with potent prokinetic properties. A prior phase 2a study showed that 10 microg b.i.d. relamorelin subcutaneously for 4 weeks had prokinetic activity and relieved symptoms of diabetic gastroparesis, especially in patients with vomiting at baseline.

The study aim was to evaluate the efficacy of relamorelin on disease symptoms and gastric emptying in moderate to severe diabetic gastroparesis. In a 12-week, double-blind, placebo-controlled, parallel-group, randomized, controlled trial, with a 2-week, single-blind placebo run-in, patients were randomized to 10 microg b.i.d., 30 microg b.i.d., 100 microg b.i.d., or placebo b.i.d. Patients completed a daily e-diary of symptoms (Diabetic Gastroparesis Symptom Severity Diary [DGSSD]: nausea, abdominal pain, postprandial fullness, and bloating on a 0–10 scale) and vomiting episodes, which were summarized by treatment week. The primary endpoint was a change from baseline in vomiting frequency; a key secondary endpoint was change from baseline in a four-symptom composite of DGSSD symptoms.

A longitudinal analysis over the 12-week trial showed there were reductions in nausea, postprandial fullness, abdominal pain, and bloating individually and as a composite score. Relamorelin accelerated gastric emptying T1/2 at all three doses compared with placebo. However, there were no effects on vomiting frequency, which showed a high placebo response. More hyperglycemia events and diarrhea events were observed with relamorelin treatment compared with placebo. The diarrhea reflects the previously demonstrated stimulation of colonic transit and motility and reduction of symptoms of constipation in patients with chronic constipation. The hyperglycemia likely resulted from accelerated gastric emptying rather than potential inhibition of insulin production, which has been reported with high levels of ghrelin in animal studies or with high levels of ghrelin associated with starvation.

Thus, relamorelin demonstrated substantially improved core symptoms of diabetic gastroparesis, was generally safe and well tolerated, and should be further assessed in pivotal phase 3 trials. The results in this trial suggest that there is no dose-response relationship between the three doses of relamorelin tested and that future trials of relamorelin might not need to include the 100-microg b.i.d. dose. Importantly, this study also suggests the importance to prospectively manage the hyperglycemia in future trials.

Dr. Camilleri is a faculty member in the department of gastroenterology and hepatology at the Mayo Clinic in Rochester, Minn. His comments were made during the AGA Institute Presidential Plenary at the Annual Digestive Disease Week.

 

Gastroparesis is defined as delayed gastric emptying with associated symptoms in the absence of mechanical obstruction. The cardinal symptoms are upper abdominal pain, postprandial fullness, bloating, early satiety, nausea, and, with more severe disease, vomiting. Weight loss, malnutrition, dehydration, electrolyte imbalance, bezoar formation, and aspiration pneumonia may occur in advanced cases. Unfortunately, there are few approved or efficacious treatment options for diabetic gastroparesis. The 5-HT4 receptor agonist, cisapride, has been withdrawn from the prescription markets in most countries.

AGA Institute
Dr. Michael Camilleri
Relamorelin (RM-131) is a selective pentapeptide ghrelin receptor agonist with potent prokinetic properties. A prior phase 2a study showed that 10 microg b.i.d. relamorelin subcutaneously for 4 weeks had prokinetic activity and relieved symptoms of diabetic gastroparesis, especially in patients with vomiting at baseline.

The study aim was to evaluate the efficacy of relamorelin on disease symptoms and gastric emptying in moderate to severe diabetic gastroparesis. In a 12-week, double-blind, placebo-controlled, parallel-group, randomized, controlled trial, with a 2-week, single-blind placebo run-in, patients were randomized to 10 microg b.i.d., 30 microg b.i.d., 100 microg b.i.d., or placebo b.i.d. Patients completed a daily e-diary of symptoms (Diabetic Gastroparesis Symptom Severity Diary [DGSSD]: nausea, abdominal pain, postprandial fullness, and bloating on a 0–10 scale) and vomiting episodes, which were summarized by treatment week. The primary endpoint was a change from baseline in vomiting frequency; a key secondary endpoint was change from baseline in a four-symptom composite of DGSSD symptoms.

A longitudinal analysis over the 12-week trial showed there were reductions in nausea, postprandial fullness, abdominal pain, and bloating individually and as a composite score. Relamorelin accelerated gastric emptying T1/2 at all three doses compared with placebo. However, there were no effects on vomiting frequency, which showed a high placebo response. More hyperglycemia events and diarrhea events were observed with relamorelin treatment compared with placebo. The diarrhea reflects the previously demonstrated stimulation of colonic transit and motility and reduction of symptoms of constipation in patients with chronic constipation. The hyperglycemia likely resulted from accelerated gastric emptying rather than potential inhibition of insulin production, which has been reported with high levels of ghrelin in animal studies or with high levels of ghrelin associated with starvation.

Thus, relamorelin demonstrated substantially improved core symptoms of diabetic gastroparesis, was generally safe and well tolerated, and should be further assessed in pivotal phase 3 trials. The results in this trial suggest that there is no dose-response relationship between the three doses of relamorelin tested and that future trials of relamorelin might not need to include the 100-microg b.i.d. dose. Importantly, this study also suggests the importance to prospectively manage the hyperglycemia in future trials.

Dr. Camilleri is a faculty member in the department of gastroenterology and hepatology at the Mayo Clinic in Rochester, Minn. His comments were made during the AGA Institute Presidential Plenary at the Annual Digestive Disease Week.

Publications
Publications
Topics
Article Type
Sections
Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
Disqus Comments
Default

Increased risk of death seen in PPI users

Article Type
Changed

 

Proton pump inhibitors (PPIs) are associated with a significantly higher risk of death than are H2-receptor antagonists, according to a 5-year longitudinal cohort study.

The study, published online in BMJ Open, found that increased risk of death was evident even in people without gastrointestinal conditions, and it increased with longer duration of use.

Yan Xie, MPH, of the VA Saint Louis Health Care System and coauthors, wrote that PPIs are linked to a range of serious adverse outcomes – such as acute interstitial nephritis, chronic kidney disease, incident dementia, and Clostridium difficile infection – each of which is associated with higher risk of mortality.

Courtesy Yan Xie
Yan Xie
“Whether PPI use is associated with excess risk of death is not known and has not been examined in large epidemiological studies spanning a sufficiently long duration of follow-up.”In this study, a cohort of 349,312 veterans initiated on acid-suppression therapy was followed for a mean duration of 5.71 years (BMJ Open 2017. July 4;7:e015735. doi: 10.1136/bmjopen-2016-015735).

Researchers saw a 25% higher risk of death in the 275,977 participants treated with PPIs, compared with that in those who were treated with H2-receptor antagonists (95% confidence interval, 1.23-1.28), after adjusting for factors such as estimated glomerular filtration rate, age, hospitalizations, and a range of comorbidities, including gastrointestinal disorders.When PPI use was compared with no PPI use, there was a 15% increase in the risk of death (95% CI, 1.14-1.15). When compared with no known exposure to any acid suppression therapy, the increased risk of death was 23% (95% CI, 1.22-1.24).

In an attempt to look at the risk of death in a lower-risk cohort, the researchers analyzed a subgroup of participants who did not have the conditions for which PPIs are normally prescribed, such as gastroesophageal reflux disease, upper gastrointestinal tract bleeding, ulcer disease, Helicobacter pylori infection, and Barrett’s esophagus.

However, even in this lower-risk cohort, the study still showed a 24% increase in the risk of death with PPIs, compared with that in H2-receptor antagonists (95% CI, 1.21-1.27); a 19% increase with PPIs, compared with no PPIs; and a 22% increase with PPIs, compared with no acid suppression.

Duration of exposure to PPIs was also associated with increasing risk of death. Participants who had taken PPIs for fewer than 90 days in total had only a 5% increase in risk, while those taking them for 361-720 days had a 51% increased risk of death.

“Although our results should not deter prescription and use of PPIs where medically indicated, they may be used to encourage and promote pharmacovigilance and emphasize the need to exercise judicious use of PPIs and limit use and duration of therapy to instances where there is a clear medical indication and where benefit outweighs potential risk,” the authors wrote.“Standardized guidelines for initiating PPI prescription may lead to reduced overuse [and] regular review of prescription and over-the-counter medications, and deprescription, where a medical indication for PPI treatment ceases to exist, may be a meritorious approach.”

Examining possible physiologic mechanisms to explain the increased risk of death, the authors noted that animal studies suggested PPIs may limit the liver’s capacity to regenerate.

PPIs are also associated with increased activity of the heme oxygenase-1 enzyme in gastric and endothelial cells and impairment of lysosomal acidification and proteostasis and may alter gene expression in the cellular retinol metabolism pathway and the complement and coagulation cascades pathway.

However, the clinical mediator of the heightened risk of death was likely one of the adverse events linked to PPI use, they said.

The authors declared no relevant financial conflicts of interest.

Review AGA’s “Guide to Conversations About the Latest PPI Research Results” for tips on talking with your patients about this research study.
Publications
Topics
Sections

 

Proton pump inhibitors (PPIs) are associated with a significantly higher risk of death than are H2-receptor antagonists, according to a 5-year longitudinal cohort study.

The study, published online in BMJ Open, found that increased risk of death was evident even in people without gastrointestinal conditions, and it increased with longer duration of use.

Yan Xie, MPH, of the VA Saint Louis Health Care System and coauthors, wrote that PPIs are linked to a range of serious adverse outcomes – such as acute interstitial nephritis, chronic kidney disease, incident dementia, and Clostridium difficile infection – each of which is associated with higher risk of mortality.

Courtesy Yan Xie
Yan Xie
“Whether PPI use is associated with excess risk of death is not known and has not been examined in large epidemiological studies spanning a sufficiently long duration of follow-up.”In this study, a cohort of 349,312 veterans initiated on acid-suppression therapy was followed for a mean duration of 5.71 years (BMJ Open 2017. July 4;7:e015735. doi: 10.1136/bmjopen-2016-015735).

Researchers saw a 25% higher risk of death in the 275,977 participants treated with PPIs, compared with that in those who were treated with H2-receptor antagonists (95% confidence interval, 1.23-1.28), after adjusting for factors such as estimated glomerular filtration rate, age, hospitalizations, and a range of comorbidities, including gastrointestinal disorders.When PPI use was compared with no PPI use, there was a 15% increase in the risk of death (95% CI, 1.14-1.15). When compared with no known exposure to any acid suppression therapy, the increased risk of death was 23% (95% CI, 1.22-1.24).

In an attempt to look at the risk of death in a lower-risk cohort, the researchers analyzed a subgroup of participants who did not have the conditions for which PPIs are normally prescribed, such as gastroesophageal reflux disease, upper gastrointestinal tract bleeding, ulcer disease, Helicobacter pylori infection, and Barrett’s esophagus.

However, even in this lower-risk cohort, the study still showed a 24% increase in the risk of death with PPIs, compared with that in H2-receptor antagonists (95% CI, 1.21-1.27); a 19% increase with PPIs, compared with no PPIs; and a 22% increase with PPIs, compared with no acid suppression.

Duration of exposure to PPIs was also associated with increasing risk of death. Participants who had taken PPIs for fewer than 90 days in total had only a 5% increase in risk, while those taking them for 361-720 days had a 51% increased risk of death.

“Although our results should not deter prescription and use of PPIs where medically indicated, they may be used to encourage and promote pharmacovigilance and emphasize the need to exercise judicious use of PPIs and limit use and duration of therapy to instances where there is a clear medical indication and where benefit outweighs potential risk,” the authors wrote.“Standardized guidelines for initiating PPI prescription may lead to reduced overuse [and] regular review of prescription and over-the-counter medications, and deprescription, where a medical indication for PPI treatment ceases to exist, may be a meritorious approach.”

Examining possible physiologic mechanisms to explain the increased risk of death, the authors noted that animal studies suggested PPIs may limit the liver’s capacity to regenerate.

PPIs are also associated with increased activity of the heme oxygenase-1 enzyme in gastric and endothelial cells and impairment of lysosomal acidification and proteostasis and may alter gene expression in the cellular retinol metabolism pathway and the complement and coagulation cascades pathway.

However, the clinical mediator of the heightened risk of death was likely one of the adverse events linked to PPI use, they said.

The authors declared no relevant financial conflicts of interest.

Review AGA’s “Guide to Conversations About the Latest PPI Research Results” for tips on talking with your patients about this research study.

 

Proton pump inhibitors (PPIs) are associated with a significantly higher risk of death than are H2-receptor antagonists, according to a 5-year longitudinal cohort study.

The study, published online in BMJ Open, found that increased risk of death was evident even in people without gastrointestinal conditions, and it increased with longer duration of use.

Yan Xie, MPH, of the VA Saint Louis Health Care System and coauthors, wrote that PPIs are linked to a range of serious adverse outcomes – such as acute interstitial nephritis, chronic kidney disease, incident dementia, and Clostridium difficile infection – each of which is associated with higher risk of mortality.

Courtesy Yan Xie
Yan Xie
“Whether PPI use is associated with excess risk of death is not known and has not been examined in large epidemiological studies spanning a sufficiently long duration of follow-up.”In this study, a cohort of 349,312 veterans initiated on acid-suppression therapy was followed for a mean duration of 5.71 years (BMJ Open 2017. July 4;7:e015735. doi: 10.1136/bmjopen-2016-015735).

Researchers saw a 25% higher risk of death in the 275,977 participants treated with PPIs, compared with that in those who were treated with H2-receptor antagonists (95% confidence interval, 1.23-1.28), after adjusting for factors such as estimated glomerular filtration rate, age, hospitalizations, and a range of comorbidities, including gastrointestinal disorders.When PPI use was compared with no PPI use, there was a 15% increase in the risk of death (95% CI, 1.14-1.15). When compared with no known exposure to any acid suppression therapy, the increased risk of death was 23% (95% CI, 1.22-1.24).

In an attempt to look at the risk of death in a lower-risk cohort, the researchers analyzed a subgroup of participants who did not have the conditions for which PPIs are normally prescribed, such as gastroesophageal reflux disease, upper gastrointestinal tract bleeding, ulcer disease, Helicobacter pylori infection, and Barrett’s esophagus.

However, even in this lower-risk cohort, the study still showed a 24% increase in the risk of death with PPIs, compared with that in H2-receptor antagonists (95% CI, 1.21-1.27); a 19% increase with PPIs, compared with no PPIs; and a 22% increase with PPIs, compared with no acid suppression.

Duration of exposure to PPIs was also associated with increasing risk of death. Participants who had taken PPIs for fewer than 90 days in total had only a 5% increase in risk, while those taking them for 361-720 days had a 51% increased risk of death.

“Although our results should not deter prescription and use of PPIs where medically indicated, they may be used to encourage and promote pharmacovigilance and emphasize the need to exercise judicious use of PPIs and limit use and duration of therapy to instances where there is a clear medical indication and where benefit outweighs potential risk,” the authors wrote.“Standardized guidelines for initiating PPI prescription may lead to reduced overuse [and] regular review of prescription and over-the-counter medications, and deprescription, where a medical indication for PPI treatment ceases to exist, may be a meritorious approach.”

Examining possible physiologic mechanisms to explain the increased risk of death, the authors noted that animal studies suggested PPIs may limit the liver’s capacity to regenerate.

PPIs are also associated with increased activity of the heme oxygenase-1 enzyme in gastric and endothelial cells and impairment of lysosomal acidification and proteostasis and may alter gene expression in the cellular retinol metabolism pathway and the complement and coagulation cascades pathway.

However, the clinical mediator of the heightened risk of death was likely one of the adverse events linked to PPI use, they said.

The authors declared no relevant financial conflicts of interest.

Review AGA’s “Guide to Conversations About the Latest PPI Research Results” for tips on talking with your patients about this research study.
Publications
Publications
Topics
Article Type
Sections
Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
Disqus Comments
Default

Idarucizumab reversed dabigatran completely and rapidly in study

Article Type
Changed

 

One IV 5-g dose of idarucizumab completely, rapidly, and safely reversed the anticoagulant effect of dabigatran, according to final results for 503 patients in the multicenter, prospective, open-label, uncontrolled RE-VERSE AD study.

Uncontrolled bleeding stopped a median of 2.5 hours after 134 patients received idarucizumab. In a separate group of 202 patients, 197 were able to undergo urgent procedures after a median of 1.6 hours, Charles V. Pollack Jr., MD, and his associates reported at the International Society on Thrombosis and Haemostasis congress. The report was simultaneously published in the New England Journal of Medicine.

Courtesy International Society on Thrombosis and Haemostasis
Dr. Charles V. Pollack Jr.
The study uncovered no serious safety signals, and rates of thrombosis were 4.8% and 6.8% at 30 and 90 days, respectively, which resembled other reports of these patient populations (N Engl J Med. 2017 Jul 11. doi: 10.1056/NEJMoa1707278).

Idarucizumab was specifically developed to reverse the anticoagulant effect of dabigatran. Many countries have already licensed the humanized monoclonal antibody fragment based on interim results for the first 90 patients enrolled in the Reversal Effects of Idarucizumab on Active Dabigatran (RE-VERSE AD) study (NCT02104947), noted Dr. Pollack, of Thomas Jefferson University, Philadelphia.

The final RE-VERSE AD cohort included 301 patients with uncontrolled gastrointestinal, intracranial, or trauma-related bleeding and 202 patients who needed urgent procedures. Participants from both groups typically were white, in their late 70s (age range, 21-96 years), and receiving 110 mg (75-150 mg) dabigatran twice daily. The primary endpoint was maximum percentage reversal within 4 hours after patients received idarucizumab, based on diluted thrombin time and ecarin clotting time.

The median maximum percentage reversal of dabigatran was 100% (95% confidence interval, 100% to 100%) in more than 98% of patients, and the effect usually lasted 24 hours. Among patients who underwent procedures, intraprocedural hemostasis was considered normal in 93% of cases, mildly abnormal in 5% of cases, and moderately abnormal in 2% of cases, the researchers noted. Seven patients received another dose of idarucizumab after developing recurrent or postoperative bleeding.

A total of 24 patients had an adjudicated thrombotic event within 30 days after receiving idarucizumab. These events included pulmonary embolism, systemic embolism, ischemic stroke, deep vein thrombosis, and myocardial infarction. The fact that many patients did not restart anticoagulation could have contributed to these thrombotic events, the researchers asserted. They noted that idarucizumab had no procoagulant activity in studies of animals and healthy human volunteers.

About 19% of patients in both groups died within 90 days. “Patients enrolled in this study were elderly, had numerous coexisting conditions, and presented with serious index events, such as intracranial hemorrhage, multiple trauma, sepsis, acute abdomen, or open fracture,” the investigators wrote. “Most of the deaths that occurred within 5 days after enrollment appeared to be related to the severity of the index event or to coexisting conditions, such as respiratory failure or multiple organ failure, whereas deaths that occurred after 30 days were more likely to be independent events or related to coexisting conditions.”

Boehringer Ingelheim Pharmaceuticals provided funding. Dr. Pollack disclosed grant support from Boehringer Ingelheim during the course of the study and ties to Daiichi Sankyo, Portola, CSL Behring, Bristol-Myers Squibb/Pfizer, Janssen Pharma, and AstraZeneca. Eighteen coinvestigators also disclosed ties to Boehringer Ingelheim and a number of other pharmaceutical companies. Two coinvestigators had no relevant financial disclosures.
Meeting/Event
Publications
Topics
Sections
Meeting/Event
Meeting/Event

 

One IV 5-g dose of idarucizumab completely, rapidly, and safely reversed the anticoagulant effect of dabigatran, according to final results for 503 patients in the multicenter, prospective, open-label, uncontrolled RE-VERSE AD study.

Uncontrolled bleeding stopped a median of 2.5 hours after 134 patients received idarucizumab. In a separate group of 202 patients, 197 were able to undergo urgent procedures after a median of 1.6 hours, Charles V. Pollack Jr., MD, and his associates reported at the International Society on Thrombosis and Haemostasis congress. The report was simultaneously published in the New England Journal of Medicine.

Courtesy International Society on Thrombosis and Haemostasis
Dr. Charles V. Pollack Jr.
The study uncovered no serious safety signals, and rates of thrombosis were 4.8% and 6.8% at 30 and 90 days, respectively, which resembled other reports of these patient populations (N Engl J Med. 2017 Jul 11. doi: 10.1056/NEJMoa1707278).

Idarucizumab was specifically developed to reverse the anticoagulant effect of dabigatran. Many countries have already licensed the humanized monoclonal antibody fragment based on interim results for the first 90 patients enrolled in the Reversal Effects of Idarucizumab on Active Dabigatran (RE-VERSE AD) study (NCT02104947), noted Dr. Pollack, of Thomas Jefferson University, Philadelphia.

The final RE-VERSE AD cohort included 301 patients with uncontrolled gastrointestinal, intracranial, or trauma-related bleeding and 202 patients who needed urgent procedures. Participants from both groups typically were white, in their late 70s (age range, 21-96 years), and receiving 110 mg (75-150 mg) dabigatran twice daily. The primary endpoint was maximum percentage reversal within 4 hours after patients received idarucizumab, based on diluted thrombin time and ecarin clotting time.

The median maximum percentage reversal of dabigatran was 100% (95% confidence interval, 100% to 100%) in more than 98% of patients, and the effect usually lasted 24 hours. Among patients who underwent procedures, intraprocedural hemostasis was considered normal in 93% of cases, mildly abnormal in 5% of cases, and moderately abnormal in 2% of cases, the researchers noted. Seven patients received another dose of idarucizumab after developing recurrent or postoperative bleeding.

A total of 24 patients had an adjudicated thrombotic event within 30 days after receiving idarucizumab. These events included pulmonary embolism, systemic embolism, ischemic stroke, deep vein thrombosis, and myocardial infarction. The fact that many patients did not restart anticoagulation could have contributed to these thrombotic events, the researchers asserted. They noted that idarucizumab had no procoagulant activity in studies of animals and healthy human volunteers.

About 19% of patients in both groups died within 90 days. “Patients enrolled in this study were elderly, had numerous coexisting conditions, and presented with serious index events, such as intracranial hemorrhage, multiple trauma, sepsis, acute abdomen, or open fracture,” the investigators wrote. “Most of the deaths that occurred within 5 days after enrollment appeared to be related to the severity of the index event or to coexisting conditions, such as respiratory failure or multiple organ failure, whereas deaths that occurred after 30 days were more likely to be independent events or related to coexisting conditions.”

Boehringer Ingelheim Pharmaceuticals provided funding. Dr. Pollack disclosed grant support from Boehringer Ingelheim during the course of the study and ties to Daiichi Sankyo, Portola, CSL Behring, Bristol-Myers Squibb/Pfizer, Janssen Pharma, and AstraZeneca. Eighteen coinvestigators also disclosed ties to Boehringer Ingelheim and a number of other pharmaceutical companies. Two coinvestigators had no relevant financial disclosures.

 

One IV 5-g dose of idarucizumab completely, rapidly, and safely reversed the anticoagulant effect of dabigatran, according to final results for 503 patients in the multicenter, prospective, open-label, uncontrolled RE-VERSE AD study.

Uncontrolled bleeding stopped a median of 2.5 hours after 134 patients received idarucizumab. In a separate group of 202 patients, 197 were able to undergo urgent procedures after a median of 1.6 hours, Charles V. Pollack Jr., MD, and his associates reported at the International Society on Thrombosis and Haemostasis congress. The report was simultaneously published in the New England Journal of Medicine.

Courtesy International Society on Thrombosis and Haemostasis
Dr. Charles V. Pollack Jr.
The study uncovered no serious safety signals, and rates of thrombosis were 4.8% and 6.8% at 30 and 90 days, respectively, which resembled other reports of these patient populations (N Engl J Med. 2017 Jul 11. doi: 10.1056/NEJMoa1707278).

Idarucizumab was specifically developed to reverse the anticoagulant effect of dabigatran. Many countries have already licensed the humanized monoclonal antibody fragment based on interim results for the first 90 patients enrolled in the Reversal Effects of Idarucizumab on Active Dabigatran (RE-VERSE AD) study (NCT02104947), noted Dr. Pollack, of Thomas Jefferson University, Philadelphia.

The final RE-VERSE AD cohort included 301 patients with uncontrolled gastrointestinal, intracranial, or trauma-related bleeding and 202 patients who needed urgent procedures. Participants from both groups typically were white, in their late 70s (age range, 21-96 years), and receiving 110 mg (75-150 mg) dabigatran twice daily. The primary endpoint was maximum percentage reversal within 4 hours after patients received idarucizumab, based on diluted thrombin time and ecarin clotting time.

The median maximum percentage reversal of dabigatran was 100% (95% confidence interval, 100% to 100%) in more than 98% of patients, and the effect usually lasted 24 hours. Among patients who underwent procedures, intraprocedural hemostasis was considered normal in 93% of cases, mildly abnormal in 5% of cases, and moderately abnormal in 2% of cases, the researchers noted. Seven patients received another dose of idarucizumab after developing recurrent or postoperative bleeding.

A total of 24 patients had an adjudicated thrombotic event within 30 days after receiving idarucizumab. These events included pulmonary embolism, systemic embolism, ischemic stroke, deep vein thrombosis, and myocardial infarction. The fact that many patients did not restart anticoagulation could have contributed to these thrombotic events, the researchers asserted. They noted that idarucizumab had no procoagulant activity in studies of animals and healthy human volunteers.

About 19% of patients in both groups died within 90 days. “Patients enrolled in this study were elderly, had numerous coexisting conditions, and presented with serious index events, such as intracranial hemorrhage, multiple trauma, sepsis, acute abdomen, or open fracture,” the investigators wrote. “Most of the deaths that occurred within 5 days after enrollment appeared to be related to the severity of the index event or to coexisting conditions, such as respiratory failure or multiple organ failure, whereas deaths that occurred after 30 days were more likely to be independent events or related to coexisting conditions.”

Boehringer Ingelheim Pharmaceuticals provided funding. Dr. Pollack disclosed grant support from Boehringer Ingelheim during the course of the study and ties to Daiichi Sankyo, Portola, CSL Behring, Bristol-Myers Squibb/Pfizer, Janssen Pharma, and AstraZeneca. Eighteen coinvestigators also disclosed ties to Boehringer Ingelheim and a number of other pharmaceutical companies. Two coinvestigators had no relevant financial disclosures.
Publications
Publications
Topics
Article Type
Click for Credit Status
Ready
Sections
Article Source

FROM 2017 ISTH CONGRESS

Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
Vitals

 

Key clinical point: One IV 5-g dose of idarucizumab completely and rapidly reversed the anticoagulant effect of dabigatran.

Major finding: Uncontrolled bleeding stopped a median of 2.5 hours after 134 patients received idarucizumab. In a separate group, 197 patients were able to undergo urgent procedures after a median of 1.6 hours.

Data source: A multicenter, prospective, open-label study of 503 patients (RE-VERSE AD).

Disclosures: Boehringer Ingelheim Pharmaceuticals provided funding. Dr. Pollack disclosed grant support from Boehringer Ingelheim during the course of the study and ties to Daiichi Sankyo, Portola, CSL Behring, BMS/Pfizer, Janssen Pharma, and AstraZeneca. Eighteen coinvestigators disclosed ties to Boehringer Ingelheim and a number of other pharmaceutical companies. Two coinvestigators had no relevant financial disclosures.

Disqus Comments
Default

Persistently nondysplastic Barrett’s esophagus did not protect against progression

NDBE as an indicator of risk may be an issue
Article Type
Changed

Patients with at least five biopsies showing nondysplastic Barrett’s esophagus were statistically as likely to progress to high-grade dysplasia or esophageal adenocarcinoma as patients with a single such biopsy, according to a multicenter prospective registry study reported in the June issue of Clinical Gastroenterology and Hepatology (doi: org/10.1016/j.cgh.2017.02.019).

The findings, which contradict those from another recent multicenter cohort study (Gastroenterology. 2013;145[3]:548-53), highlight the need for more studies before lengthening the time between surveillance biopsies in patients with nondysplastic Barrett’s esophagus, Rajesh Krishnamoorthi, MD, of Mayo Clinic in Rochester, Minn., wrote with his associates.

Barrett’s esophagus is the strongest predictor of esophageal adenocarcinoma, but studies have reported mixed results as to whether the risk of this cancer increases over time or wanes with consecutive biopsies that indicate nondysplasia, the researchers noted. Therefore, they studied the prospective, multicenter Mayo Clinic Esophageal Adenocarcinoma and Barrett’s Esophagus registry, excluding patients who progressed to adenocarcinoma within 12 months, had missing data, or had no follow-up biopsies. This approach left 480 subjects for analysis. Patients averaged 63 years of age, 78% were male, the mean length of Barrett’s esophagus was 5.7 cm, and the average time between biopsies was 1.8 years, with a standard deviation of 1.3 years.

A total of 16 patients progressed to high-grade dysplasia or esophageal adenocarcinoma over 1,832 patient-years of follow-up, for an overall annual risk of progression of 0.87%. Two patients progressed to esophageal adenocarcinoma (annual risk, 0.11%; 95% confidence interval, 0.03% to 0.44%), while 14 patients progressed to high-grade dysplasia (annual risk, 0.76%; 95% CI, 0.45% to 1.29%). Eight patients progressed to one of these two outcomes after a single nondysplastic biopsy, three progressed after two such biopsies, three progressed after three such biopsies, none progressed after four such biopsies, and two progressed after five such biopsies. Statistically, patients with at least five consecutive nondysplastic biopsies were no less likely to progress than were patients with only one nondysplastic biopsy (hazard ratio, 0.48; 95% CI, 0.07 to 1.92; P = .32). Hazard ratios for the other groups ranged between 0.0 and 0.85, with no significant difference in estimated risk between groups (P = .68) after controlling for age, sex, and length of Barrett’s esophagus.

The previous multicenter cohort study linked persistently nondysplastic Barrett’s esophagus with a lower rate of progression to esophageal adenocarcinoma, and, based on those findings, the authors suggested lengthening intervals between biopsy surveillance or even stopping surveillance, Dr. Krishnamoorthi and his associates noted. However, that study did not have mutually exclusive groups. “Additional data are required before increasing the interval between surveillance endoscopies based on persistence of nondysplastic Barrett’s esophagus,” they concluded.

The study lacked misclassification bias given long-segment Barrett’s esophagus, and specialized gastrointestinal pathologists interpreted all histology specimens, the researchers noted. “The small number of progressors is a potential limitation, reducing power to assess associations,” they added.

The investigators did not report funding sources. They reported having no conflicts of interest.

Body

Current practice guidelines recommend endoscopic surveillance in Barrett’s esophagus (BE) patients to detect esophageal adenocarcinoma (EAC) at an early and potentially curable stage.

As currently practiced, endoscopic surveillance of BE has numerous limitations and provides the impetus for improved risk-stratification and, ultimately, the effectiveness of current surveillance strategies. Persistence of nondysplastic BE (NDBE) has previously been shown to be an indicator of lower risk of progression to high-grade dysplasia (HGD)/EAC. However, outcomes studies on this topic have reported conflicting results.

Dr. Sachin Wani
Krishnamoorthi and his colleagues bring the issue of persistent NDBE as a potential risk stratification variable to the forefront. Using the Mayo Clinic registry, the authors found no statistically significant decrease in the risk of progression in patients with persistent NDBE. Similar results were recently reported by Nguyen and colleagues using the national Veterans Health Administration datasets.

Where do we stand with regard to persistence of NDBE and its impact on surveillance intervals? Future large cohort studies are required that address all potential confounders and include a large number of patients with progression to HGD/EAC (a challenge given the rarity of this outcome). At the present time, based on the available data, surveillance intervals cannot be lengthened in patients with persistent NDBE. Future studies also need to focus on the development and validation of prediction models that incorporate clinical, endoscopic, and histologic factors in risk stratification. Until then, meticulous examination techniques, cognitive knowledge and training, use of standardized grading systems, and use of high-definition white light endoscopy are critical in improving effectiveness of surveillance programs in BE patients.

Sachin Wani, MD, is associate professor of medicine and Medical codirector of the Esophageal and Gastric Center of Excellence, division of gastroenterology and hepatology, University of Colorado at Denver, Aurora. He is supported by the University of Colorado Department of Medicine Outstanding Early Scholars Program and is a consultant for Medtronic and Boston Scientific.

Publications
Topics
Sections
Body

Current practice guidelines recommend endoscopic surveillance in Barrett’s esophagus (BE) patients to detect esophageal adenocarcinoma (EAC) at an early and potentially curable stage.

As currently practiced, endoscopic surveillance of BE has numerous limitations and provides the impetus for improved risk-stratification and, ultimately, the effectiveness of current surveillance strategies. Persistence of nondysplastic BE (NDBE) has previously been shown to be an indicator of lower risk of progression to high-grade dysplasia (HGD)/EAC. However, outcomes studies on this topic have reported conflicting results.

Dr. Sachin Wani
Krishnamoorthi and his colleagues bring the issue of persistent NDBE as a potential risk stratification variable to the forefront. Using the Mayo Clinic registry, the authors found no statistically significant decrease in the risk of progression in patients with persistent NDBE. Similar results were recently reported by Nguyen and colleagues using the national Veterans Health Administration datasets.

Where do we stand with regard to persistence of NDBE and its impact on surveillance intervals? Future large cohort studies are required that address all potential confounders and include a large number of patients with progression to HGD/EAC (a challenge given the rarity of this outcome). At the present time, based on the available data, surveillance intervals cannot be lengthened in patients with persistent NDBE. Future studies also need to focus on the development and validation of prediction models that incorporate clinical, endoscopic, and histologic factors in risk stratification. Until then, meticulous examination techniques, cognitive knowledge and training, use of standardized grading systems, and use of high-definition white light endoscopy are critical in improving effectiveness of surveillance programs in BE patients.

Sachin Wani, MD, is associate professor of medicine and Medical codirector of the Esophageal and Gastric Center of Excellence, division of gastroenterology and hepatology, University of Colorado at Denver, Aurora. He is supported by the University of Colorado Department of Medicine Outstanding Early Scholars Program and is a consultant for Medtronic and Boston Scientific.

Body

Current practice guidelines recommend endoscopic surveillance in Barrett’s esophagus (BE) patients to detect esophageal adenocarcinoma (EAC) at an early and potentially curable stage.

As currently practiced, endoscopic surveillance of BE has numerous limitations and provides the impetus for improved risk-stratification and, ultimately, the effectiveness of current surveillance strategies. Persistence of nondysplastic BE (NDBE) has previously been shown to be an indicator of lower risk of progression to high-grade dysplasia (HGD)/EAC. However, outcomes studies on this topic have reported conflicting results.

Dr. Sachin Wani
Krishnamoorthi and his colleagues bring the issue of persistent NDBE as a potential risk stratification variable to the forefront. Using the Mayo Clinic registry, the authors found no statistically significant decrease in the risk of progression in patients with persistent NDBE. Similar results were recently reported by Nguyen and colleagues using the national Veterans Health Administration datasets.

Where do we stand with regard to persistence of NDBE and its impact on surveillance intervals? Future large cohort studies are required that address all potential confounders and include a large number of patients with progression to HGD/EAC (a challenge given the rarity of this outcome). At the present time, based on the available data, surveillance intervals cannot be lengthened in patients with persistent NDBE. Future studies also need to focus on the development and validation of prediction models that incorporate clinical, endoscopic, and histologic factors in risk stratification. Until then, meticulous examination techniques, cognitive knowledge and training, use of standardized grading systems, and use of high-definition white light endoscopy are critical in improving effectiveness of surveillance programs in BE patients.

Sachin Wani, MD, is associate professor of medicine and Medical codirector of the Esophageal and Gastric Center of Excellence, division of gastroenterology and hepatology, University of Colorado at Denver, Aurora. He is supported by the University of Colorado Department of Medicine Outstanding Early Scholars Program and is a consultant for Medtronic and Boston Scientific.

Title
NDBE as an indicator of risk may be an issue
NDBE as an indicator of risk may be an issue

Patients with at least five biopsies showing nondysplastic Barrett’s esophagus were statistically as likely to progress to high-grade dysplasia or esophageal adenocarcinoma as patients with a single such biopsy, according to a multicenter prospective registry study reported in the June issue of Clinical Gastroenterology and Hepatology (doi: org/10.1016/j.cgh.2017.02.019).

The findings, which contradict those from another recent multicenter cohort study (Gastroenterology. 2013;145[3]:548-53), highlight the need for more studies before lengthening the time between surveillance biopsies in patients with nondysplastic Barrett’s esophagus, Rajesh Krishnamoorthi, MD, of Mayo Clinic in Rochester, Minn., wrote with his associates.

Barrett’s esophagus is the strongest predictor of esophageal adenocarcinoma, but studies have reported mixed results as to whether the risk of this cancer increases over time or wanes with consecutive biopsies that indicate nondysplasia, the researchers noted. Therefore, they studied the prospective, multicenter Mayo Clinic Esophageal Adenocarcinoma and Barrett’s Esophagus registry, excluding patients who progressed to adenocarcinoma within 12 months, had missing data, or had no follow-up biopsies. This approach left 480 subjects for analysis. Patients averaged 63 years of age, 78% were male, the mean length of Barrett’s esophagus was 5.7 cm, and the average time between biopsies was 1.8 years, with a standard deviation of 1.3 years.

A total of 16 patients progressed to high-grade dysplasia or esophageal adenocarcinoma over 1,832 patient-years of follow-up, for an overall annual risk of progression of 0.87%. Two patients progressed to esophageal adenocarcinoma (annual risk, 0.11%; 95% confidence interval, 0.03% to 0.44%), while 14 patients progressed to high-grade dysplasia (annual risk, 0.76%; 95% CI, 0.45% to 1.29%). Eight patients progressed to one of these two outcomes after a single nondysplastic biopsy, three progressed after two such biopsies, three progressed after three such biopsies, none progressed after four such biopsies, and two progressed after five such biopsies. Statistically, patients with at least five consecutive nondysplastic biopsies were no less likely to progress than were patients with only one nondysplastic biopsy (hazard ratio, 0.48; 95% CI, 0.07 to 1.92; P = .32). Hazard ratios for the other groups ranged between 0.0 and 0.85, with no significant difference in estimated risk between groups (P = .68) after controlling for age, sex, and length of Barrett’s esophagus.

The previous multicenter cohort study linked persistently nondysplastic Barrett’s esophagus with a lower rate of progression to esophageal adenocarcinoma, and, based on those findings, the authors suggested lengthening intervals between biopsy surveillance or even stopping surveillance, Dr. Krishnamoorthi and his associates noted. However, that study did not have mutually exclusive groups. “Additional data are required before increasing the interval between surveillance endoscopies based on persistence of nondysplastic Barrett’s esophagus,” they concluded.

The study lacked misclassification bias given long-segment Barrett’s esophagus, and specialized gastrointestinal pathologists interpreted all histology specimens, the researchers noted. “The small number of progressors is a potential limitation, reducing power to assess associations,” they added.

The investigators did not report funding sources. They reported having no conflicts of interest.

Patients with at least five biopsies showing nondysplastic Barrett’s esophagus were statistically as likely to progress to high-grade dysplasia or esophageal adenocarcinoma as patients with a single such biopsy, according to a multicenter prospective registry study reported in the June issue of Clinical Gastroenterology and Hepatology (doi: org/10.1016/j.cgh.2017.02.019).

The findings, which contradict those from another recent multicenter cohort study (Gastroenterology. 2013;145[3]:548-53), highlight the need for more studies before lengthening the time between surveillance biopsies in patients with nondysplastic Barrett’s esophagus, Rajesh Krishnamoorthi, MD, of Mayo Clinic in Rochester, Minn., wrote with his associates.

Barrett’s esophagus is the strongest predictor of esophageal adenocarcinoma, but studies have reported mixed results as to whether the risk of this cancer increases over time or wanes with consecutive biopsies that indicate nondysplasia, the researchers noted. Therefore, they studied the prospective, multicenter Mayo Clinic Esophageal Adenocarcinoma and Barrett’s Esophagus registry, excluding patients who progressed to adenocarcinoma within 12 months, had missing data, or had no follow-up biopsies. This approach left 480 subjects for analysis. Patients averaged 63 years of age, 78% were male, the mean length of Barrett’s esophagus was 5.7 cm, and the average time between biopsies was 1.8 years, with a standard deviation of 1.3 years.

A total of 16 patients progressed to high-grade dysplasia or esophageal adenocarcinoma over 1,832 patient-years of follow-up, for an overall annual risk of progression of 0.87%. Two patients progressed to esophageal adenocarcinoma (annual risk, 0.11%; 95% confidence interval, 0.03% to 0.44%), while 14 patients progressed to high-grade dysplasia (annual risk, 0.76%; 95% CI, 0.45% to 1.29%). Eight patients progressed to one of these two outcomes after a single nondysplastic biopsy, three progressed after two such biopsies, three progressed after three such biopsies, none progressed after four such biopsies, and two progressed after five such biopsies. Statistically, patients with at least five consecutive nondysplastic biopsies were no less likely to progress than were patients with only one nondysplastic biopsy (hazard ratio, 0.48; 95% CI, 0.07 to 1.92; P = .32). Hazard ratios for the other groups ranged between 0.0 and 0.85, with no significant difference in estimated risk between groups (P = .68) after controlling for age, sex, and length of Barrett’s esophagus.

The previous multicenter cohort study linked persistently nondysplastic Barrett’s esophagus with a lower rate of progression to esophageal adenocarcinoma, and, based on those findings, the authors suggested lengthening intervals between biopsy surveillance or even stopping surveillance, Dr. Krishnamoorthi and his associates noted. However, that study did not have mutually exclusive groups. “Additional data are required before increasing the interval between surveillance endoscopies based on persistence of nondysplastic Barrett’s esophagus,” they concluded.

The study lacked misclassification bias given long-segment Barrett’s esophagus, and specialized gastrointestinal pathologists interpreted all histology specimens, the researchers noted. “The small number of progressors is a potential limitation, reducing power to assess associations,” they added.

The investigators did not report funding sources. They reported having no conflicts of interest.

Publications
Publications
Topics
Article Type
Sections
Article Source

FROM CLINICAL GASTROENTEROLOGY AND HEPATOLOGY

Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
Vitals

 

Key clinical point: Patients with multiple consecutive biopsies showing nondysplastic Barrett’s esophagus were statistically as likely to progress to esophageal adenocarcinoma or high-grade dysplasia as those with a single nondysplastic biopsy.

Major finding: Hazard ratios for progression ranged between 0.00 and 0.85, with no significant difference in estimated risk among groups stratified by number of consecutive nondysplastic biopsies (P = .68), after controlling for age, sex, and length of Barrett’s esophagus.

Data source: A prospective multicenter registry of 480 patients with nondysplastic Barrett’s esophagus and multiple surveillance biopsies.

Disclosures: The investigators did not report funding sources. They reported having no conflicts of interest.

VIDEO: LINX magnetic band beats omeprazole for GERD regurgitation

Article Type
Changed

 

– Persistent reflux symptoms resolved in 93% of patients who underwent laparoscopic deployment of a circlet of magnet beads to the lower esophageal juncture, but in just 9% of those who doubled their dose of omeprazole, Reginald Bell, MD, said at the annual Digestive Disease Week®.

In addition to bolstering positive device data, the results of this ongoing randomized study suggest that it may be time to rethink the treatment algorithm for patients who don’t respond optimally to medical therapy, Dr. Bell said in an interview.

“We found that relatively few patients respond well to the typical doubling of PPIs,” said Dr. Bell of the SOFI SurgOne Foregut Institute, Englewood, Colo. “In light of these strong results, it’s my opinion that we should consider going straight to surgery for at least some of these patients”

The LINX Reflux Management System (TORAX Medical; Shoreview, Minn.) is a small, flexible band of interlinked titanium beads with magnetic cores. The magnetic attraction between the beads keeps them joined when the lower esophageal sphincter is at rest. It exerts just enough resistance, however, to keep the sphincter from opening under gastric pressures of less than about 20 mm Hg, preventing reflux into the esophagus. Reflux typically occurs at an opening pressure of 10-12 mm Hg. Swallowing pressures, however, generally exceed 20 mm Hg, Dr. Bell said, allowing the circlet to expand enough to allow free passage of the bolus. The magnetic forces then bring the beads back together, again keeping the sphincter in a closed position.

This variable pressure is a big advantage over the Nissen fundoplication, which creates a pseudoflap that isn’t as yielding to intragastric pressure, Dr. Bell said. Nissen patients frequently have trouble belching or vomiting, and can experience bloating and distention from a reduced ability to vent gases. That is generally not a problem with LINX patients. And while some do initially experience dysphagia, this is typically transient. In the pivotal trial, bloating occurred in 7% of patients by 24 months.

The study comprised 150 patients with persistent symptoms of gastroesophageal reflux disease (GERD), despite at least 8 weeks of taking 20 mg omeprazole daily. These patients were randomized on a 2:1 scheme to either a doubling of omeprazole (20 mg twice a day) or surgery with LINX. Dr. Bell reported 6-month outcomes on 80 patients, 25 of whom had the LINX procedure and 55 of whom began double-dose omeprazole.

These patients were a mean of 47 years old, and had used a proton pump inhibitor (PPI) for a mean of 8 years. Baseline work-ups confirmed moderate to severe GERD, with about 12% of gastric measurement times at less than pH 4. The mean DeMeester Score was about 40. On the GERD Health-Related Quality of Life Questionnaire, patients scored about 24 while on medical therapy and 31 while off. They reported moderate to severe heartburn and regurgitation.

The study’s primary endpoint was relief of moderate to severe regurgitation. This was reached in 93% of the LINX group and 9% of the double-dose PPI group – a significant difference. Significantly more LINX patients also achieved at least a 50% reduction in their baseline GERD-HRQL score (90% vs.7%). The mean score dropped from about 32-5 in the LINX group and 30-24 in the PPI group.

Mean scores on the Reflux Disease Questionnaire improved significantly more in the LINX group than in the PPI group, including regurgitation (4.2.-1.4; 4.4 at both time points), and heartburn (3.4-1.6; 3.6-3.9).

An independent, blinded laboratory conducted pH/impedance testing on the cohort; the normal values were less than 57 reflux episodes/24 hours. At 6 months, the LINX group experienced a mean of 30 episodes vs. 70 in the PPI group.

When the investigators examined a combined measure of the number of reflux episodes and the change in DeMeester scores, they found normal reflux in 92% of the LINX group and 36% of the PPI group.

There was one adverse event related to the LINX procedure. A 66-year-old man was hospitalized and medically treated for esophageal spasms. The incident resolved with no sequelae, Dr. Bell said. So far, one LINX patient has needed to add PPI therapy; other studies typically show that 2%-3% of patients with the device do so.

Dr. Bell disclosed that he is a consultant for TORAX.

Digestive Disease Week® is jointly sponsored by the American Association for the Study of Liver Diseases (AASLD), the American Gastroenterological Association (AGA) Institute, the American Society for Gastrointestinal Endoscopy (ASGE), and the Society for Surgery of the Alimentary Tract (SSAT).

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
Meeting/Event
Publications
Topics
Sections
Meeting/Event
Meeting/Event

 

– Persistent reflux symptoms resolved in 93% of patients who underwent laparoscopic deployment of a circlet of magnet beads to the lower esophageal juncture, but in just 9% of those who doubled their dose of omeprazole, Reginald Bell, MD, said at the annual Digestive Disease Week®.

In addition to bolstering positive device data, the results of this ongoing randomized study suggest that it may be time to rethink the treatment algorithm for patients who don’t respond optimally to medical therapy, Dr. Bell said in an interview.

“We found that relatively few patients respond well to the typical doubling of PPIs,” said Dr. Bell of the SOFI SurgOne Foregut Institute, Englewood, Colo. “In light of these strong results, it’s my opinion that we should consider going straight to surgery for at least some of these patients”

The LINX Reflux Management System (TORAX Medical; Shoreview, Minn.) is a small, flexible band of interlinked titanium beads with magnetic cores. The magnetic attraction between the beads keeps them joined when the lower esophageal sphincter is at rest. It exerts just enough resistance, however, to keep the sphincter from opening under gastric pressures of less than about 20 mm Hg, preventing reflux into the esophagus. Reflux typically occurs at an opening pressure of 10-12 mm Hg. Swallowing pressures, however, generally exceed 20 mm Hg, Dr. Bell said, allowing the circlet to expand enough to allow free passage of the bolus. The magnetic forces then bring the beads back together, again keeping the sphincter in a closed position.

This variable pressure is a big advantage over the Nissen fundoplication, which creates a pseudoflap that isn’t as yielding to intragastric pressure, Dr. Bell said. Nissen patients frequently have trouble belching or vomiting, and can experience bloating and distention from a reduced ability to vent gases. That is generally not a problem with LINX patients. And while some do initially experience dysphagia, this is typically transient. In the pivotal trial, bloating occurred in 7% of patients by 24 months.

The study comprised 150 patients with persistent symptoms of gastroesophageal reflux disease (GERD), despite at least 8 weeks of taking 20 mg omeprazole daily. These patients were randomized on a 2:1 scheme to either a doubling of omeprazole (20 mg twice a day) or surgery with LINX. Dr. Bell reported 6-month outcomes on 80 patients, 25 of whom had the LINX procedure and 55 of whom began double-dose omeprazole.

These patients were a mean of 47 years old, and had used a proton pump inhibitor (PPI) for a mean of 8 years. Baseline work-ups confirmed moderate to severe GERD, with about 12% of gastric measurement times at less than pH 4. The mean DeMeester Score was about 40. On the GERD Health-Related Quality of Life Questionnaire, patients scored about 24 while on medical therapy and 31 while off. They reported moderate to severe heartburn and regurgitation.

The study’s primary endpoint was relief of moderate to severe regurgitation. This was reached in 93% of the LINX group and 9% of the double-dose PPI group – a significant difference. Significantly more LINX patients also achieved at least a 50% reduction in their baseline GERD-HRQL score (90% vs.7%). The mean score dropped from about 32-5 in the LINX group and 30-24 in the PPI group.

Mean scores on the Reflux Disease Questionnaire improved significantly more in the LINX group than in the PPI group, including regurgitation (4.2.-1.4; 4.4 at both time points), and heartburn (3.4-1.6; 3.6-3.9).

An independent, blinded laboratory conducted pH/impedance testing on the cohort; the normal values were less than 57 reflux episodes/24 hours. At 6 months, the LINX group experienced a mean of 30 episodes vs. 70 in the PPI group.

When the investigators examined a combined measure of the number of reflux episodes and the change in DeMeester scores, they found normal reflux in 92% of the LINX group and 36% of the PPI group.

There was one adverse event related to the LINX procedure. A 66-year-old man was hospitalized and medically treated for esophageal spasms. The incident resolved with no sequelae, Dr. Bell said. So far, one LINX patient has needed to add PPI therapy; other studies typically show that 2%-3% of patients with the device do so.

Dr. Bell disclosed that he is a consultant for TORAX.

Digestive Disease Week® is jointly sponsored by the American Association for the Study of Liver Diseases (AASLD), the American Gastroenterological Association (AGA) Institute, the American Society for Gastrointestinal Endoscopy (ASGE), and the Society for Surgery of the Alimentary Tract (SSAT).

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

 

– Persistent reflux symptoms resolved in 93% of patients who underwent laparoscopic deployment of a circlet of magnet beads to the lower esophageal juncture, but in just 9% of those who doubled their dose of omeprazole, Reginald Bell, MD, said at the annual Digestive Disease Week®.

In addition to bolstering positive device data, the results of this ongoing randomized study suggest that it may be time to rethink the treatment algorithm for patients who don’t respond optimally to medical therapy, Dr. Bell said in an interview.

“We found that relatively few patients respond well to the typical doubling of PPIs,” said Dr. Bell of the SOFI SurgOne Foregut Institute, Englewood, Colo. “In light of these strong results, it’s my opinion that we should consider going straight to surgery for at least some of these patients”

The LINX Reflux Management System (TORAX Medical; Shoreview, Minn.) is a small, flexible band of interlinked titanium beads with magnetic cores. The magnetic attraction between the beads keeps them joined when the lower esophageal sphincter is at rest. It exerts just enough resistance, however, to keep the sphincter from opening under gastric pressures of less than about 20 mm Hg, preventing reflux into the esophagus. Reflux typically occurs at an opening pressure of 10-12 mm Hg. Swallowing pressures, however, generally exceed 20 mm Hg, Dr. Bell said, allowing the circlet to expand enough to allow free passage of the bolus. The magnetic forces then bring the beads back together, again keeping the sphincter in a closed position.

This variable pressure is a big advantage over the Nissen fundoplication, which creates a pseudoflap that isn’t as yielding to intragastric pressure, Dr. Bell said. Nissen patients frequently have trouble belching or vomiting, and can experience bloating and distention from a reduced ability to vent gases. That is generally not a problem with LINX patients. And while some do initially experience dysphagia, this is typically transient. In the pivotal trial, bloating occurred in 7% of patients by 24 months.

The study comprised 150 patients with persistent symptoms of gastroesophageal reflux disease (GERD), despite at least 8 weeks of taking 20 mg omeprazole daily. These patients were randomized on a 2:1 scheme to either a doubling of omeprazole (20 mg twice a day) or surgery with LINX. Dr. Bell reported 6-month outcomes on 80 patients, 25 of whom had the LINX procedure and 55 of whom began double-dose omeprazole.

These patients were a mean of 47 years old, and had used a proton pump inhibitor (PPI) for a mean of 8 years. Baseline work-ups confirmed moderate to severe GERD, with about 12% of gastric measurement times at less than pH 4. The mean DeMeester Score was about 40. On the GERD Health-Related Quality of Life Questionnaire, patients scored about 24 while on medical therapy and 31 while off. They reported moderate to severe heartburn and regurgitation.

The study’s primary endpoint was relief of moderate to severe regurgitation. This was reached in 93% of the LINX group and 9% of the double-dose PPI group – a significant difference. Significantly more LINX patients also achieved at least a 50% reduction in their baseline GERD-HRQL score (90% vs.7%). The mean score dropped from about 32-5 in the LINX group and 30-24 in the PPI group.

Mean scores on the Reflux Disease Questionnaire improved significantly more in the LINX group than in the PPI group, including regurgitation (4.2.-1.4; 4.4 at both time points), and heartburn (3.4-1.6; 3.6-3.9).

An independent, blinded laboratory conducted pH/impedance testing on the cohort; the normal values were less than 57 reflux episodes/24 hours. At 6 months, the LINX group experienced a mean of 30 episodes vs. 70 in the PPI group.

When the investigators examined a combined measure of the number of reflux episodes and the change in DeMeester scores, they found normal reflux in 92% of the LINX group and 36% of the PPI group.

There was one adverse event related to the LINX procedure. A 66-year-old man was hospitalized and medically treated for esophageal spasms. The incident resolved with no sequelae, Dr. Bell said. So far, one LINX patient has needed to add PPI therapy; other studies typically show that 2%-3% of patients with the device do so.

Dr. Bell disclosed that he is a consultant for TORAX.

Digestive Disease Week® is jointly sponsored by the American Association for the Study of Liver Diseases (AASLD), the American Gastroenterological Association (AGA) Institute, the American Society for Gastrointestinal Endoscopy (ASGE), and the Society for Surgery of the Alimentary Tract (SSAT).

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
Publications
Publications
Topics
Article Type
Sections
Article Source

AT DDW 2017

Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
Vitals

 

Key clinical point: The surgically implanted LINX gastroesophageal reflux device was more effective than 80 mg omeprazole in resolving GERD-related regurgitation.

Major finding: Symptoms resolved in 93% of patients, compared to 9% of those who took the proton pump inhibitor.

Data source: An ongoing randomized study of 150 patients; Dr. Bell reported 6-month outcomes on 80.

Disclosures: Dr. Bell is a consultant for TORAX Medical, which developed and manufactures the device.

Misoprostol effective in healing aspirin-induced small bowel bleeding

Article Type
Changed

 

Misoprostol could be a treatment option for healing intestinal bleeding that is associated with regular aspirin use, a small study showed.

Compared with placebo, it was superior in healing small bowel ulcers. A total of 12 patients who received misoprostol had complete healing at 8 weeks, compared with 4 in the placebo group (P = .017).

“Among patients with overt bleeding or anemia from small bowel lesions who receive continuous aspirin therapy, misoprostol is superior to placebo in achieving complete mucosal healing,” said lead author Francis Chan, MD, professor of gastroenterology and hepatology at the Chinese University of Hong Kong, who presented the findings at the annual Digestive Disease Week®.

Millions of individuals use low-dose aspirin daily to lower their risk of stroke and cardiovascular events, but they face a risk of gastrointestinal bleeding. In fact, Dr. Chan pointed out, continuous aspirin use has been associated with a threefold risk of a lower GI bleed.

“But to date, there is no effective pharmacological treatment for small bowel ulcers that are associated with use of low-dose aspirin,” he said.

Misoprostol is a synthetic prostaglandin E1 analog that is indicated for reducing the risk of NSAID–induced gastric ulcers in individuals who are at high risk of complications from gastric ulcers. In their study, Dr. Chan and his colleagues assessed the efficacy of misoprostol for healing small bowel ulcers in patients with GI bleeding who were using continuous aspirin therapy.

The primary endpoint was complete mucosal healing in 8 weeks, and secondary endpoints included changes in the number of GI erosions.

The double-blind, randomized, placebo-controlled trial included 35 patients assigned to misoprostol and 37 to placebo. All patients were on regular aspirin (at least 160 mg/day) for established cardiothrombotic diseases and had either overt bleeding of the small bowel or anemia. No bleeding source was identified on gastroscopy and colonoscopy. They had a score of 3 (more than four erosions) or 4 (large erosion or ulcer) that was confirmed by capsule endoscopy.

Those randomized to the active therapy arm received 200 mg misoprostol four times daily, and all patients continued aspirin 80 mg/day for the duration of the trial. During the study period, concomitant NSAIDs, proton pump inhibitors, sucralfate, rebamipide, antibiotics, corticosteroids, or iron supplement was prohibited.

A follow-up capsule endoscopy was performed at 8 weeks to assess mucosal healing, and all images were evaluated by a blinded panel.

The intention-to-treat population included all patients who took at least one dose of the study drug and returned for follow-up capsule endoscopy (n = 72).

In this population, 33% of patients in the misoprostol group and 10.5% on placebo had complete mucosal healing at 8 weeks.

“For the secondary endpoint of changes in small bowel erosions, there was a significant difference between the misoprostol group and placebo group with a P value of .025,” said Dr. Chan.

The study was supported by a competitive grant from the Research Grant Council of Hong Kong. Dr. Chan reported relationships with AstraZeneca, Eisai, Pfizer, and Takeda.

Meeting/Event
Publications
Topics
Sections
Meeting/Event
Meeting/Event

 

Misoprostol could be a treatment option for healing intestinal bleeding that is associated with regular aspirin use, a small study showed.

Compared with placebo, it was superior in healing small bowel ulcers. A total of 12 patients who received misoprostol had complete healing at 8 weeks, compared with 4 in the placebo group (P = .017).

“Among patients with overt bleeding or anemia from small bowel lesions who receive continuous aspirin therapy, misoprostol is superior to placebo in achieving complete mucosal healing,” said lead author Francis Chan, MD, professor of gastroenterology and hepatology at the Chinese University of Hong Kong, who presented the findings at the annual Digestive Disease Week®.

Millions of individuals use low-dose aspirin daily to lower their risk of stroke and cardiovascular events, but they face a risk of gastrointestinal bleeding. In fact, Dr. Chan pointed out, continuous aspirin use has been associated with a threefold risk of a lower GI bleed.

“But to date, there is no effective pharmacological treatment for small bowel ulcers that are associated with use of low-dose aspirin,” he said.

Misoprostol is a synthetic prostaglandin E1 analog that is indicated for reducing the risk of NSAID–induced gastric ulcers in individuals who are at high risk of complications from gastric ulcers. In their study, Dr. Chan and his colleagues assessed the efficacy of misoprostol for healing small bowel ulcers in patients with GI bleeding who were using continuous aspirin therapy.

The primary endpoint was complete mucosal healing in 8 weeks, and secondary endpoints included changes in the number of GI erosions.

The double-blind, randomized, placebo-controlled trial included 35 patients assigned to misoprostol and 37 to placebo. All patients were on regular aspirin (at least 160 mg/day) for established cardiothrombotic diseases and had either overt bleeding of the small bowel or anemia. No bleeding source was identified on gastroscopy and colonoscopy. They had a score of 3 (more than four erosions) or 4 (large erosion or ulcer) that was confirmed by capsule endoscopy.

Those randomized to the active therapy arm received 200 mg misoprostol four times daily, and all patients continued aspirin 80 mg/day for the duration of the trial. During the study period, concomitant NSAIDs, proton pump inhibitors, sucralfate, rebamipide, antibiotics, corticosteroids, or iron supplement was prohibited.

A follow-up capsule endoscopy was performed at 8 weeks to assess mucosal healing, and all images were evaluated by a blinded panel.

The intention-to-treat population included all patients who took at least one dose of the study drug and returned for follow-up capsule endoscopy (n = 72).

In this population, 33% of patients in the misoprostol group and 10.5% on placebo had complete mucosal healing at 8 weeks.

“For the secondary endpoint of changes in small bowel erosions, there was a significant difference between the misoprostol group and placebo group with a P value of .025,” said Dr. Chan.

The study was supported by a competitive grant from the Research Grant Council of Hong Kong. Dr. Chan reported relationships with AstraZeneca, Eisai, Pfizer, and Takeda.

 

Misoprostol could be a treatment option for healing intestinal bleeding that is associated with regular aspirin use, a small study showed.

Compared with placebo, it was superior in healing small bowel ulcers. A total of 12 patients who received misoprostol had complete healing at 8 weeks, compared with 4 in the placebo group (P = .017).

“Among patients with overt bleeding or anemia from small bowel lesions who receive continuous aspirin therapy, misoprostol is superior to placebo in achieving complete mucosal healing,” said lead author Francis Chan, MD, professor of gastroenterology and hepatology at the Chinese University of Hong Kong, who presented the findings at the annual Digestive Disease Week®.

Millions of individuals use low-dose aspirin daily to lower their risk of stroke and cardiovascular events, but they face a risk of gastrointestinal bleeding. In fact, Dr. Chan pointed out, continuous aspirin use has been associated with a threefold risk of a lower GI bleed.

“But to date, there is no effective pharmacological treatment for small bowel ulcers that are associated with use of low-dose aspirin,” he said.

Misoprostol is a synthetic prostaglandin E1 analog that is indicated for reducing the risk of NSAID–induced gastric ulcers in individuals who are at high risk of complications from gastric ulcers. In their study, Dr. Chan and his colleagues assessed the efficacy of misoprostol for healing small bowel ulcers in patients with GI bleeding who were using continuous aspirin therapy.

The primary endpoint was complete mucosal healing in 8 weeks, and secondary endpoints included changes in the number of GI erosions.

The double-blind, randomized, placebo-controlled trial included 35 patients assigned to misoprostol and 37 to placebo. All patients were on regular aspirin (at least 160 mg/day) for established cardiothrombotic diseases and had either overt bleeding of the small bowel or anemia. No bleeding source was identified on gastroscopy and colonoscopy. They had a score of 3 (more than four erosions) or 4 (large erosion or ulcer) that was confirmed by capsule endoscopy.

Those randomized to the active therapy arm received 200 mg misoprostol four times daily, and all patients continued aspirin 80 mg/day for the duration of the trial. During the study period, concomitant NSAIDs, proton pump inhibitors, sucralfate, rebamipide, antibiotics, corticosteroids, or iron supplement was prohibited.

A follow-up capsule endoscopy was performed at 8 weeks to assess mucosal healing, and all images were evaluated by a blinded panel.

The intention-to-treat population included all patients who took at least one dose of the study drug and returned for follow-up capsule endoscopy (n = 72).

In this population, 33% of patients in the misoprostol group and 10.5% on placebo had complete mucosal healing at 8 weeks.

“For the secondary endpoint of changes in small bowel erosions, there was a significant difference between the misoprostol group and placebo group with a P value of .025,” said Dr. Chan.

The study was supported by a competitive grant from the Research Grant Council of Hong Kong. Dr. Chan reported relationships with AstraZeneca, Eisai, Pfizer, and Takeda.

Publications
Publications
Topics
Article Type
Click for Credit Status
Ready
Sections
Article Source

AT DDW

Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
Vitals

 

Key clinical point: Misoprostol was more effective than placebo in healing small bowel ulcers in patients who used daily low-dose aspirin.

Major finding: 33% of patients in the misoprostol group and 10.5% on placebo had complete mucosal healing at 8 weeks.

Data source: An 8-week, double-blind, randomized placebo-controlled trial of 72 patients that assessed misoprostol vs. placebo for healing small bowel ulcers.

Disclosures: The study was supported by a competitive grant from the Research Grant Council of Hong Kong. Dr. Chan reported relationships with AstraZeneca, Eisai, Pfizer, and Takeda.

Three clinical disorders confound diagnosis of gastroparesis

Article Type
Changed

– Particularly in adults, there are three conditions that produce symptoms consistent with idiopathic gastroparesis and should be specifically considered in a detailed history conducted before advanced diagnostic tests, according to a clinical update at the Fourth Annual Digestive Diseases: New Advances meeting, held by Rutgers, the State University of New Jersey, and Global Academy for Medical Education.

The three disorders “are very important, because we see them missed all the time,” reported Anthony J. Lembo, MD, director of the GI Motility Laboratory, Beth Israel Deaconess Medical Center, Boston.

Dr. Anthony J. Lembo
In the order presented, these were rumination syndrome, cyclic vomiting syndrome, and chronic cannabinoid use.

“If you do not take a detailed enough history or if the patient is not willing to tell you about their past history, there is a good chance that these will go undetected,” Dr. Lembo explained. In his update on gastroparesis, he identified the recognition of these disorders as the most important clinical pearl of his overview of the challenges faced when evaluating the highly nonspecific symptoms of delayed–bowel transit time.

“Rumination syndrome has a very classic set of symptoms. When the patient swallows food, it will almost immediately or very quickly come back up. Sometimes the food is vomited. Often, it gets swallowed back down. That is not gastroparesis,” Dr. Lembo explained. Although vomiting after eating is a common symptom of gastroparesis, it is typically delayed by hours.

Cyclical vomiting syndrome, perhaps more readily recognized in children, does occur in adults more than many clinicians appreciate, according to Dr. Lembo. He said that there is one key giveaway for this condition: patients are asymptomatic between episodes. He also said that episodes are separated by substantial intervals of weeks to months.

Symptoms associated with cannabinoids are most commonly observed in young men frequently using marijuana over an extended period, according to Dr. Lembo. He said reports that symptoms are improved with hot showers may be a clue that marijuana is involved in the etiology. Urine tests are useful when patients suspected of marijuana use deny this history.

The problem is that, even when cannabinoid use is isolated as the cause of bowel symptoms, many patients are convinced that their symptoms improve, rather than get worse, with marijuana use. This is a common obstacle to the abstention needed to evaluate benefit, according to Dr. Lembo.

As for other possible etiologies, Dr. Lembo advised upper endoscopy to rule out mechanical causes of gastroparesis, such as peptic ulcer disease, proximal bowel obstruction, or gastrointestinal cancer. He specifically recommended scoping to the “third portion of the duodenum” when obstruction is being considered in the differential diagnosis.

When gastroparesis is considered the most likely cause of symptoms, Dr. Lembo recommended a gastric-emptying study to increase confidence in the diagnosis. He identified 4-hour scintigraphy as the standard of care, as defined by current guidelines. However, he warned that even well-regarded centers do not always follow this standard. Based on the lower sensitivity and specificity of shorter duration tests and of other options such as breath tests or wireless motility capsules, clinicians “should really insist” on the 4-hour gastric-emptying test when they are concerned about documentation, he said.

Once the diagnosis has been made, there are numerous therapeutic options, but the top three are “diet, diet, and diet,” according to Dr. Lembo. In his review of prokinetic drugs, such as metoclopramide and motilin agonists, he cautioned that there is often a delicate balance between risk and benefit. New options on the horizon include a ghrelin agonist that showed promise in a phase III trial, but he noted that many patients with severe unremitting symptoms are prepared to try almost anything.

“These can be desperate people when they have failed everything that is out there,” Dr. Lembo noted. He acknowledged that such patients express interest even in strategies that have failed to show convincing benefit in controlled trials, such as botulism toxin injection and neuroenteric gastric stimulators. When all other options have been exhausted, a referral to a specialist for experimental therapies may be appropriate because of the major adverse impact of unremitting symptoms on quality of life.

Dr. Lembo reported financial relationships with Alkermes, Allergan, Forest, Ironwood, Prometheus, and Salix.
Meeting/Event
Publications
Topics
Sections
Meeting/Event
Meeting/Event

– Particularly in adults, there are three conditions that produce symptoms consistent with idiopathic gastroparesis and should be specifically considered in a detailed history conducted before advanced diagnostic tests, according to a clinical update at the Fourth Annual Digestive Diseases: New Advances meeting, held by Rutgers, the State University of New Jersey, and Global Academy for Medical Education.

The three disorders “are very important, because we see them missed all the time,” reported Anthony J. Lembo, MD, director of the GI Motility Laboratory, Beth Israel Deaconess Medical Center, Boston.

Dr. Anthony J. Lembo
In the order presented, these were rumination syndrome, cyclic vomiting syndrome, and chronic cannabinoid use.

“If you do not take a detailed enough history or if the patient is not willing to tell you about their past history, there is a good chance that these will go undetected,” Dr. Lembo explained. In his update on gastroparesis, he identified the recognition of these disorders as the most important clinical pearl of his overview of the challenges faced when evaluating the highly nonspecific symptoms of delayed–bowel transit time.

“Rumination syndrome has a very classic set of symptoms. When the patient swallows food, it will almost immediately or very quickly come back up. Sometimes the food is vomited. Often, it gets swallowed back down. That is not gastroparesis,” Dr. Lembo explained. Although vomiting after eating is a common symptom of gastroparesis, it is typically delayed by hours.

Cyclical vomiting syndrome, perhaps more readily recognized in children, does occur in adults more than many clinicians appreciate, according to Dr. Lembo. He said that there is one key giveaway for this condition: patients are asymptomatic between episodes. He also said that episodes are separated by substantial intervals of weeks to months.

Symptoms associated with cannabinoids are most commonly observed in young men frequently using marijuana over an extended period, according to Dr. Lembo. He said reports that symptoms are improved with hot showers may be a clue that marijuana is involved in the etiology. Urine tests are useful when patients suspected of marijuana use deny this history.

The problem is that, even when cannabinoid use is isolated as the cause of bowel symptoms, many patients are convinced that their symptoms improve, rather than get worse, with marijuana use. This is a common obstacle to the abstention needed to evaluate benefit, according to Dr. Lembo.

As for other possible etiologies, Dr. Lembo advised upper endoscopy to rule out mechanical causes of gastroparesis, such as peptic ulcer disease, proximal bowel obstruction, or gastrointestinal cancer. He specifically recommended scoping to the “third portion of the duodenum” when obstruction is being considered in the differential diagnosis.

When gastroparesis is considered the most likely cause of symptoms, Dr. Lembo recommended a gastric-emptying study to increase confidence in the diagnosis. He identified 4-hour scintigraphy as the standard of care, as defined by current guidelines. However, he warned that even well-regarded centers do not always follow this standard. Based on the lower sensitivity and specificity of shorter duration tests and of other options such as breath tests or wireless motility capsules, clinicians “should really insist” on the 4-hour gastric-emptying test when they are concerned about documentation, he said.

Once the diagnosis has been made, there are numerous therapeutic options, but the top three are “diet, diet, and diet,” according to Dr. Lembo. In his review of prokinetic drugs, such as metoclopramide and motilin agonists, he cautioned that there is often a delicate balance between risk and benefit. New options on the horizon include a ghrelin agonist that showed promise in a phase III trial, but he noted that many patients with severe unremitting symptoms are prepared to try almost anything.

“These can be desperate people when they have failed everything that is out there,” Dr. Lembo noted. He acknowledged that such patients express interest even in strategies that have failed to show convincing benefit in controlled trials, such as botulism toxin injection and neuroenteric gastric stimulators. When all other options have been exhausted, a referral to a specialist for experimental therapies may be appropriate because of the major adverse impact of unremitting symptoms on quality of life.

Dr. Lembo reported financial relationships with Alkermes, Allergan, Forest, Ironwood, Prometheus, and Salix.

– Particularly in adults, there are three conditions that produce symptoms consistent with idiopathic gastroparesis and should be specifically considered in a detailed history conducted before advanced diagnostic tests, according to a clinical update at the Fourth Annual Digestive Diseases: New Advances meeting, held by Rutgers, the State University of New Jersey, and Global Academy for Medical Education.

The three disorders “are very important, because we see them missed all the time,” reported Anthony J. Lembo, MD, director of the GI Motility Laboratory, Beth Israel Deaconess Medical Center, Boston.

Dr. Anthony J. Lembo
In the order presented, these were rumination syndrome, cyclic vomiting syndrome, and chronic cannabinoid use.

“If you do not take a detailed enough history or if the patient is not willing to tell you about their past history, there is a good chance that these will go undetected,” Dr. Lembo explained. In his update on gastroparesis, he identified the recognition of these disorders as the most important clinical pearl of his overview of the challenges faced when evaluating the highly nonspecific symptoms of delayed–bowel transit time.

“Rumination syndrome has a very classic set of symptoms. When the patient swallows food, it will almost immediately or very quickly come back up. Sometimes the food is vomited. Often, it gets swallowed back down. That is not gastroparesis,” Dr. Lembo explained. Although vomiting after eating is a common symptom of gastroparesis, it is typically delayed by hours.

Cyclical vomiting syndrome, perhaps more readily recognized in children, does occur in adults more than many clinicians appreciate, according to Dr. Lembo. He said that there is one key giveaway for this condition: patients are asymptomatic between episodes. He also said that episodes are separated by substantial intervals of weeks to months.

Symptoms associated with cannabinoids are most commonly observed in young men frequently using marijuana over an extended period, according to Dr. Lembo. He said reports that symptoms are improved with hot showers may be a clue that marijuana is involved in the etiology. Urine tests are useful when patients suspected of marijuana use deny this history.

The problem is that, even when cannabinoid use is isolated as the cause of bowel symptoms, many patients are convinced that their symptoms improve, rather than get worse, with marijuana use. This is a common obstacle to the abstention needed to evaluate benefit, according to Dr. Lembo.

As for other possible etiologies, Dr. Lembo advised upper endoscopy to rule out mechanical causes of gastroparesis, such as peptic ulcer disease, proximal bowel obstruction, or gastrointestinal cancer. He specifically recommended scoping to the “third portion of the duodenum” when obstruction is being considered in the differential diagnosis.

When gastroparesis is considered the most likely cause of symptoms, Dr. Lembo recommended a gastric-emptying study to increase confidence in the diagnosis. He identified 4-hour scintigraphy as the standard of care, as defined by current guidelines. However, he warned that even well-regarded centers do not always follow this standard. Based on the lower sensitivity and specificity of shorter duration tests and of other options such as breath tests or wireless motility capsules, clinicians “should really insist” on the 4-hour gastric-emptying test when they are concerned about documentation, he said.

Once the diagnosis has been made, there are numerous therapeutic options, but the top three are “diet, diet, and diet,” according to Dr. Lembo. In his review of prokinetic drugs, such as metoclopramide and motilin agonists, he cautioned that there is often a delicate balance between risk and benefit. New options on the horizon include a ghrelin agonist that showed promise in a phase III trial, but he noted that many patients with severe unremitting symptoms are prepared to try almost anything.

“These can be desperate people when they have failed everything that is out there,” Dr. Lembo noted. He acknowledged that such patients express interest even in strategies that have failed to show convincing benefit in controlled trials, such as botulism toxin injection and neuroenteric gastric stimulators. When all other options have been exhausted, a referral to a specialist for experimental therapies may be appropriate because of the major adverse impact of unremitting symptoms on quality of life.

Dr. Lembo reported financial relationships with Alkermes, Allergan, Forest, Ironwood, Prometheus, and Salix.
Publications
Publications
Topics
Article Type
Click for Credit Status
Active
Sections
Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
CME ID
134552

PPI-responsive eosinophilic esophagitis may be misnomer

Article Type
Changed

 

PHILADELPHIA – Eosinophilic esophagitis (EoE) responsive to a proton pump inhibitor (PPI) has been characterized as PPI-responsive esophageal eosinophilia (PPI-REE), but there is no compelling evidence that it is a distinct EoE subgroup, according to an expert who updated current thinking about this disease at Digestive Diseases: New Advances.

Dr. Stuart Spechler
The substantial response in EoE patients to PPI therapy, which is nearly 50% in some studies, has been a source of confusion. PPIs reduce gastric acid, but EoE is not an acid-related disease, according to Dr. Spechler. The picture is now becoming clearer with new evidence that PPIs do more. Dr. Spechler reviewed evidence that PPIs inhibit inflammatory cells, exert antioxidant properties, and decrease the inflammatory cytokine signaling that drives eosinophil activation and adhesion.

Although it is true that only a subset of EoE patients respond to PPIs, few therapies are effective for all patients in any disease Dr. Spechler observed. As an example, he noted that ulcerative colitis patients who respond to sulfasalazine are not subclassified as sulfasalazine-responsive ulcerative colitis.

“I do think the term PPI-REE should be retired, although I acknowledge that not everyone in this field is ready to agree,” Dr. Spechler said at the meeting, held by Rutgers, the State University of New Jersey, and Global Academy for Medical Education. Global Academy and this news organization are owned by the same company.

The confusion regarding PPI responsiveness in EoE has been driven by the fact that acid control has been widely regarded as the only pertinent mechanism of action from PPIs. Although coexisting gastroesophageal reflux disease could explain symptom relief in some patients with EoE, no evidence of excess acid is found in many responders. Detailed evaluations of the PPI-REE subgroup relative to EOE overall emphasize this point, according to Dr. Spechler.

“Studies have shown that the clinical, endoscopic, histologic, and gene expression features of these two disorders are identical,” he reported.

The lack of distinction is now easier to understand with a growing body of evidence that PPIs have acid-independent effects relevant to benefit in EoE, according to Dr. Spechler. Tracing the advances in understanding the pathogenesis in EoE since it was first described in 1978, Dr. Spechler explained that EoE is now understood to be an antigen-driven expression of food allergy related to up-regulation of the Th2 helper adaptive response. After briefly reviewing several potential anti-inflammatory effects of PPIs, Dr. Spechler focused on evidence that PPIs inhibit the adhesion molecule eotaxin-3.

Specifically, when squamous cells from EoE patients are exposed to the cytokine interleukin-4 (IL-4), “production of eotaxin-3 is increased dramatically but you can block that cytokine Th2 stimulation with [the PPI] omeprazole,” said Dr. Spechler, citing published work by Edaire Cheng, MD, a researcher with whom he has collaborated at the University of Texas Southwestern Medical School, Dallas. This is a potentially important observation, because up-regulation of eotaxin-3 is considered a critical molecular event for the activation of eosinophils and their migration.

The relative importance of this specific mechanism for explaining the benefits of PPIs in EoE requires additional confirmation, but Dr. Spechler indicated that there is strong evidence of acid-independent effects from PPIs. In fact, in outlining an algorithm for treatment of EoE, he listed a trial of PPIs as a reasonable first choice.

“In my opinion, the major reason that we created an arbitrary distinction is this persistent notion that acid inhibition is the only possible therapeutic effect of PPIs,” Dr. Spechler reported. “I hope I have convinced you otherwise.”

In his brief update of EoE treatment in 2017, Dr. Spechler identified a trial of PPIs as first line “simply because they work.” However PPIs have been rendered even more attractive by the evidence of a plausible mechanism of action in EoE. Conversely, he cautioned that steroids are “just a band-aid” because “they cover up the allergy but the allergy remains.” Ultimately, while PPIs are a reasonable first-line therapy to control symptoms, Dr. Spechler suggested that elimination diets are ultimately the best strategy for treating the underlying cause of EoE.

Dr. Spechler reported a financial relationship with Ironwood Pharmaceuticals.
Meeting/Event
Publications
Topics
Sections
Meeting/Event
Meeting/Event

 

PHILADELPHIA – Eosinophilic esophagitis (EoE) responsive to a proton pump inhibitor (PPI) has been characterized as PPI-responsive esophageal eosinophilia (PPI-REE), but there is no compelling evidence that it is a distinct EoE subgroup, according to an expert who updated current thinking about this disease at Digestive Diseases: New Advances.

Dr. Stuart Spechler
The substantial response in EoE patients to PPI therapy, which is nearly 50% in some studies, has been a source of confusion. PPIs reduce gastric acid, but EoE is not an acid-related disease, according to Dr. Spechler. The picture is now becoming clearer with new evidence that PPIs do more. Dr. Spechler reviewed evidence that PPIs inhibit inflammatory cells, exert antioxidant properties, and decrease the inflammatory cytokine signaling that drives eosinophil activation and adhesion.

Although it is true that only a subset of EoE patients respond to PPIs, few therapies are effective for all patients in any disease Dr. Spechler observed. As an example, he noted that ulcerative colitis patients who respond to sulfasalazine are not subclassified as sulfasalazine-responsive ulcerative colitis.

“I do think the term PPI-REE should be retired, although I acknowledge that not everyone in this field is ready to agree,” Dr. Spechler said at the meeting, held by Rutgers, the State University of New Jersey, and Global Academy for Medical Education. Global Academy and this news organization are owned by the same company.

The confusion regarding PPI responsiveness in EoE has been driven by the fact that acid control has been widely regarded as the only pertinent mechanism of action from PPIs. Although coexisting gastroesophageal reflux disease could explain symptom relief in some patients with EoE, no evidence of excess acid is found in many responders. Detailed evaluations of the PPI-REE subgroup relative to EOE overall emphasize this point, according to Dr. Spechler.

“Studies have shown that the clinical, endoscopic, histologic, and gene expression features of these two disorders are identical,” he reported.

The lack of distinction is now easier to understand with a growing body of evidence that PPIs have acid-independent effects relevant to benefit in EoE, according to Dr. Spechler. Tracing the advances in understanding the pathogenesis in EoE since it was first described in 1978, Dr. Spechler explained that EoE is now understood to be an antigen-driven expression of food allergy related to up-regulation of the Th2 helper adaptive response. After briefly reviewing several potential anti-inflammatory effects of PPIs, Dr. Spechler focused on evidence that PPIs inhibit the adhesion molecule eotaxin-3.

Specifically, when squamous cells from EoE patients are exposed to the cytokine interleukin-4 (IL-4), “production of eotaxin-3 is increased dramatically but you can block that cytokine Th2 stimulation with [the PPI] omeprazole,” said Dr. Spechler, citing published work by Edaire Cheng, MD, a researcher with whom he has collaborated at the University of Texas Southwestern Medical School, Dallas. This is a potentially important observation, because up-regulation of eotaxin-3 is considered a critical molecular event for the activation of eosinophils and their migration.

The relative importance of this specific mechanism for explaining the benefits of PPIs in EoE requires additional confirmation, but Dr. Spechler indicated that there is strong evidence of acid-independent effects from PPIs. In fact, in outlining an algorithm for treatment of EoE, he listed a trial of PPIs as a reasonable first choice.

“In my opinion, the major reason that we created an arbitrary distinction is this persistent notion that acid inhibition is the only possible therapeutic effect of PPIs,” Dr. Spechler reported. “I hope I have convinced you otherwise.”

In his brief update of EoE treatment in 2017, Dr. Spechler identified a trial of PPIs as first line “simply because they work.” However PPIs have been rendered even more attractive by the evidence of a plausible mechanism of action in EoE. Conversely, he cautioned that steroids are “just a band-aid” because “they cover up the allergy but the allergy remains.” Ultimately, while PPIs are a reasonable first-line therapy to control symptoms, Dr. Spechler suggested that elimination diets are ultimately the best strategy for treating the underlying cause of EoE.

Dr. Spechler reported a financial relationship with Ironwood Pharmaceuticals.

 

PHILADELPHIA – Eosinophilic esophagitis (EoE) responsive to a proton pump inhibitor (PPI) has been characterized as PPI-responsive esophageal eosinophilia (PPI-REE), but there is no compelling evidence that it is a distinct EoE subgroup, according to an expert who updated current thinking about this disease at Digestive Diseases: New Advances.

Dr. Stuart Spechler
The substantial response in EoE patients to PPI therapy, which is nearly 50% in some studies, has been a source of confusion. PPIs reduce gastric acid, but EoE is not an acid-related disease, according to Dr. Spechler. The picture is now becoming clearer with new evidence that PPIs do more. Dr. Spechler reviewed evidence that PPIs inhibit inflammatory cells, exert antioxidant properties, and decrease the inflammatory cytokine signaling that drives eosinophil activation and adhesion.

Although it is true that only a subset of EoE patients respond to PPIs, few therapies are effective for all patients in any disease Dr. Spechler observed. As an example, he noted that ulcerative colitis patients who respond to sulfasalazine are not subclassified as sulfasalazine-responsive ulcerative colitis.

“I do think the term PPI-REE should be retired, although I acknowledge that not everyone in this field is ready to agree,” Dr. Spechler said at the meeting, held by Rutgers, the State University of New Jersey, and Global Academy for Medical Education. Global Academy and this news organization are owned by the same company.

The confusion regarding PPI responsiveness in EoE has been driven by the fact that acid control has been widely regarded as the only pertinent mechanism of action from PPIs. Although coexisting gastroesophageal reflux disease could explain symptom relief in some patients with EoE, no evidence of excess acid is found in many responders. Detailed evaluations of the PPI-REE subgroup relative to EOE overall emphasize this point, according to Dr. Spechler.

“Studies have shown that the clinical, endoscopic, histologic, and gene expression features of these two disorders are identical,” he reported.

The lack of distinction is now easier to understand with a growing body of evidence that PPIs have acid-independent effects relevant to benefit in EoE, according to Dr. Spechler. Tracing the advances in understanding the pathogenesis in EoE since it was first described in 1978, Dr. Spechler explained that EoE is now understood to be an antigen-driven expression of food allergy related to up-regulation of the Th2 helper adaptive response. After briefly reviewing several potential anti-inflammatory effects of PPIs, Dr. Spechler focused on evidence that PPIs inhibit the adhesion molecule eotaxin-3.

Specifically, when squamous cells from EoE patients are exposed to the cytokine interleukin-4 (IL-4), “production of eotaxin-3 is increased dramatically but you can block that cytokine Th2 stimulation with [the PPI] omeprazole,” said Dr. Spechler, citing published work by Edaire Cheng, MD, a researcher with whom he has collaborated at the University of Texas Southwestern Medical School, Dallas. This is a potentially important observation, because up-regulation of eotaxin-3 is considered a critical molecular event for the activation of eosinophils and their migration.

The relative importance of this specific mechanism for explaining the benefits of PPIs in EoE requires additional confirmation, but Dr. Spechler indicated that there is strong evidence of acid-independent effects from PPIs. In fact, in outlining an algorithm for treatment of EoE, he listed a trial of PPIs as a reasonable first choice.

“In my opinion, the major reason that we created an arbitrary distinction is this persistent notion that acid inhibition is the only possible therapeutic effect of PPIs,” Dr. Spechler reported. “I hope I have convinced you otherwise.”

In his brief update of EoE treatment in 2017, Dr. Spechler identified a trial of PPIs as first line “simply because they work.” However PPIs have been rendered even more attractive by the evidence of a plausible mechanism of action in EoE. Conversely, he cautioned that steroids are “just a band-aid” because “they cover up the allergy but the allergy remains.” Ultimately, while PPIs are a reasonable first-line therapy to control symptoms, Dr. Spechler suggested that elimination diets are ultimately the best strategy for treating the underlying cause of EoE.

Dr. Spechler reported a financial relationship with Ironwood Pharmaceuticals.
Publications
Publications
Topics
Article Type
Click for Credit Status
Active
Sections
Article Source

EXPERT ANALYSIS FROM DIGESTIVE DISEASES: NEW ADVANCES

Disallow All Ads
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
CME ID
134448