News Release

Penn researchers find relief for gastrointestinal illnesses

Studies suggest potential new treatment option

Peer-Reviewed Publication

MedThink Communications

(Philadelphia, PA) – Researchers at the University of Pennsylvania School of Medicine have identified a new drug treatment option for small bowel bacteria overgrowth (SBBO) -- a condition such as Crohn's disease -- which prevents the body from absorbing enough nutrients from the small intestines; and pouchitis, an inflammation of an internal pouch created in patients who have had a section of colon removed. Both conditions are commonly treated with antibiotics. However, use is often limited due to adverse reactions, including nausea, anorexia, peripheral neuropathy, tendonitis, and drug interactions. Gary Lichtenstein, MD, Professor of Medicine and Director, Center for Inflammatory Irritable Bowel Diseases in the Division of Gastroenterology at the Hospital of the University of Pennsylvania, presented his findings today at the annual Digestive Disease Week meeting.

In two separate studies Lichtenstein and colleagues looked at the use of Rifaximin (Xifaxan), an orally administered, gut-specific antibiotic, to relieve symptoms of SBBO and pouchitis.

In the first study, 14 patients with SBBO (10 had Crohn's disease, 2 had scleroderma, and 2 had a mixed connective tissue disorder) were given Rifaximin for 14 days. Thirteen of the 14 patients (9 of 10 patients with Crohn's disease, 2 of 2 with scleroderma, and 2 of 2 with mixed connective tissue disorders) responded to treatment. Of this group, 12 had complete remission of symptoms and one patient had a greater than 50% reduction of symptoms. All patients reported decreased fecal urgency and complete resolution of abdominal pain. No adverse events occurred in any of the patients.

In the second study, 10 patients suffering with pouchitis were given Rifaximin for 14 days. Of the nine patients who responded to treatment, eight experienced complete remission, while the remaining patient reported a greater than 50% improvement. As in the first study, all experienced decreased fecal urgency and complete resolution of abdominal pain, with no adverse events reported. Dr. Lichtenstein is hopeful that this will add, "… a useful, safe medication to the medical armamentarium of treatment of patients with potentially debilitating gastrointestinal symptoms."

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Digestive Disease Week (DDW) is the largest international gathering of physicians, researchers, and academics in the fields of gastroenterology, hepatology, endoscopy, and gastrointestinal surgery. Jointly sponsored by the American Association for the Study of Liver Diseases (AASLD), the American Gastroenterological Association (AGA), the American Society for Gastrointestinal Endoscopy (ASGE) and the Society for Surgery of the Alimentary Tract (SSAT), DDW takes place May 14-19, 2005, in Chicago. The meeting showcases approximately 5,000 abstracts and hundreds of lectures on the latest advances in GI research, medicine, and technology. Neither Dr. Lichtenstein nor any of his colleagues has any financial interest in Rifaximin or Salix Pharmaceuticals

PENN Medicine is a $2.7 billion enterprise dedicated to the related missions of medical education, biomedical research, and high-quality patient care. PENN Medicine consists of the University of Pennsylvania School of Medicine (founded in 1765 as the nation's first medical school) and the University of Pennsylvania Health System.

Penn's School of Medicine is ranked #3 in the nation for receipt of NIH research funds; and ranked #4 in the nation in U.S. News & World Report's most recent ranking of top research-oriented medical schools. Supporting 1,400 full-time faculty and 700 students, the School of Medicine is recognized worldwide for its superior education and training of the next generation of physician-scientists and leaders of academic medicine.

The University of Pennsylvania Health System includes three hospitals [Hospital of the University of Pennsylvania, which is consistently ranked one of the nation's few "Honor Roll" hospitals by U.S. News & World Report; Pennsylvania Hospital, the nation's first hospital; and Presbyterian Medical Center]; a faculty practice plan, a primary-care provider network, two multispecialty satellite facilities, and home health care and hospice.


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