Gastrointestinal Clinical Studies in Columbus

Studies in gastroenterology are essential to advancing medical research in the field. Doctors use studies to help create and monitor new approaches and treatments.

At Aventiv, we conduct studies for the advancement of research in treatments for gastrointestinal diseases. Gastroenterologists are trained physicians who specialize in diseases of the gastrointestinal tract—which includes the gallbladder, bile ducts, esophagus, stomach, small intestine, colon, rectum, and pancreas.

Gastrointenstinal Studies We Offer

We offer several different gastrointestinal studies at Aventiv. If you are afflicted with any of the listed conditions, you may qualify for one of our clinical research studies. Please refer to each study’s page for detailed participant information.

Acid Reflux

Acid reflux disease or gastroesophageal reflux disease (GERD) occurs when acid produced by the stomach flows back up into the esophagus, commonly resulting in heartburn or a sour/bitter taste in the throat or mouth. While many individuals will experience acid reflux at some point in their life, approximately 33% of people in the United States […]

C. Diff

Clostridioides difficile (also known as C. diff) is a bacterium that can cause gastrointestinal symptoms ranging from diarrhea to life-threatening inflammation of the colon. Illnesses caused by C. diff are most common in older individuals being treated in hospitals or long-term care facilities. It’s estimated to cause almost half a million illnesses in the United […]


Though occasional constipation is very common, some people experience chronic constipation that can interfere with their ability to go about their daily tasks. Chronic constipation is infrequent bowel movements or difficult passage of stools that persists for several weeks or longer. Chronic constipation may also cause people to strain excessively in order to have a […]

Diabetic Gastroparesis

What is Diabetic Gastroparesis? Gastroparesis is a condition in which material remains in the stomach for an overly long period of time, due to partial paralysis of the stomach. In the instance of diabetic gastroparesis, this is due to damage done to the vagus nerve (which controls stomach muscles) by either Type 1 or Type […]

Eosinophilic Esophagitis

Eosinophilic esophagitis (EoE) is a chronic immune system disease which is a major cause of digestive system illness. Aventiv Research is seeking volunteers for an eosinophilic esophagitis research study.

Irritable Bowel Syndrome

What is Irritable Bowel Syndrome? Irritable Bowel Syndrome, or IBS, refers to a constellation of symptoms surrounding the pattern of bowel movements, the causes of which are unclear, and that exhibit no evidence of underlying damage. IBS is broken into four types, varying with whether diarrhea and constipation are both common, both uncommon, or with […]


When liver cells store too much fat, the liver becomes inflamed and damaged. This is commonly the result of years of alcohol abuse, but a growing number of people are being diagnosed with a similar issue without the heavy drinking. The term for this condition is nonalcoholic fatty liver disease, and it affects an estimated […]

Ready to Volunteer?

Volunteer today to see if you qualify for our Gastrointestinal clinical research study, Qualified volunteers may be compensated for time and travel.