Peptic ulcer disease

This study compares two stomach-acid-lowering drugs—tegoprazan and rabeprazole—in about 3,300 heart disease patients who take blood thinners and are at high risk for stomach bleeding. The goal is to see if tegoprazan works as well as rabeprazole at preventing serious gut problems…

This study tests a new way to treat marginal ulcers that can form after gastric bypass surgery. Instead of just taking standard acid-reducing medication, some participants will also receive a low-thermal argon plasma treatment during an endoscopy. The goal is to see if this plasm…

This study compares a new hemostatic powder, Nexpowder™, to standard treatments (like clips, heat, or injections) for stopping high-risk bleeding in the upper digestive tract. About 278 adults with active bleeding from ulcers, tumors, or tears will be randomly assigned to one of …

This study tests a new surgical device (a metal clip) to create a second food pathway in the stomach for people with type 2 diabetes who are overweight or mildly obese (BMI 25-35). The goal is to improve blood sugar control without causing too much weight loss or needing lifelong…

This study tests whether a newer acid-reducing drug, Vonaprazan, heals acid reflux better than the standard drug Esomeprazole in people who had POEM surgery for achalasia. About 300 adults with moderate to severe esophagitis will take one of the two drugs for 8 weeks. The goal is…

This study tests whether a newer acid-reducing drug (vonoprazan) works better than a standard one (esomeprazole) for clearing H. pylori, a bacteria that can cause stomach ulcers and indigestion. About 80 adults with H. pylori will take one of the two drug combinations for 14 days…

This study looks at whether people aged 60 or younger who had a stroke caused by a hole in the heart (PFO) can safely stop taking blood thinners one year after the hole is closed. The goal is to see if stopping these drugs reduces the risk of bleeding without increasing the chanc…

This study looks at whether opening a capsule of the acid-blocking drug omeprazole helps heal stomach ulcers faster in people who have had gastric bypass surgery. About 122 participants will be randomly assigned to take the capsule whole or opened. Doctors will check ulcer healin…

This study compares an oral medication called Vonoprazan to the standard high-dose IV proton pump inhibitor (PPI) for preventing rebleeding in people with bleeding peptic ulcers after endoscopic treatment. About 594 adults will be randomly assigned to receive either oral Vonopraz…

This study compares two doses of vonaprazan (10 mg and 20 mg) with esomeprazole 40 mg for healing moderate to severe reflux esophagitis (grades B, C, or D) over 8 weeks. About 414 adults with GERD symptoms for at least 4 weeks will be randomly assigned to one of the three groups.…

This study tests three different anti-ulcer medications (Dexlansoprazole, Lansoprazole, and Vonoprazan) combined with two antibiotics (Levofloxacin and Amoxicillin) to see which works best for eradicating H. pylori infection. About 942 adults in Pakistan with H. pylori will take …

This study tests whether adding a probiotic called Saccharomyces boulardii to a standard antibiotic cocktail helps clear Helicobacter pylori infections that didn't respond to earlier treatments. About 1,248 adults who have failed prior H. pylori therapy will be randomly assigned …

This study tests whether adding bismuth to standard antibiotics works better than antibiotics alone to clear H. pylori infection and heal peptic ulcers in 80 children. Participants take a 14-day treatment, then continue acid-reducing medication for a few more weeks. Researchers w…

This study tests if a tube-like device called a stent, placed through a scope, can reverse gastric bypass surgery in 20 people who have serious complications like low blood sugar, blockages, or liver problems. The goal is to see if the stent works as well as surgery to fix these …

This study tracks how well a device called the DAT clip works during routine endoscopy to stop bleeding, close perforations (holes), or treat fistulas (abnormal connections) in the digestive tract. Researchers will record data from 250 adults who need this clip as part of their s…

This study compares high-dose oral omeprazole (a common acid-reducing pill) against standard intravenous pantoprazole (given through a vein) in 128 adults who have had a bleeding stomach ulcer treated with endoscopy. The goal is to see if the oral pill is just as good at preventi…

This study tests whether attaching a small cap to the endoscope helps doctors find and treat the source of upper gastrointestinal bleeding more quickly. About 72 adults with severe bleeding will be randomly assigned to have an endoscopy with or without the cap. The main goal is t…

This study tests a new medicine called anaprazole to see if it heals the esophagus better than a standard treatment (rabeprazole) in people with reflux esophagitis. About 500 adults with moderate to severe esophagus damage will take either anaprazole or rabeprazole daily for up t…

This study reviews medical records from 3,000 patients who had emergency surgery at a Swedish hospital between 2009 and 2019. Researchers want to understand what factors increase risks and how patients fare in the long run, including complications, repeat surgeries, and survival.…

This study aims to collect medical data and biological samples (blood, urine, stool, and tissue) from up to 4,000 adults with known or suspected gastrointestinal diseases. Participants receive standard medical care at the NIH, and any extra samples or leftover tissue from procedu…

This study looks at how the body absorbs esomeprazole (a stomach acid reducer) when taken as a tablet or dissolved in water, in people who had gastric bypass surgery a year ago. Fifty participants will have a small device placed in their stomach pouch to measure acid levels, and …

This early-stage trial compares two versions of a drug called AD-115A and AD-1151, designed to treat gastric ulcers. 46 healthy adults will receive a single dose of each version to see how the drug moves through the body and to check for side effects. The goal is to find out whic…