View clinical trials related to Digestive System Diseases.
Filter by:This study investigates distribution and regulation of bile acid transport in the human intestine.
OBJECTIVES: I. Compare the bioavailability of polymer-coated and buffered ursodiol (ursodeoxycholic acid) to unmodified ursodiol in patients with cystic fibrosis-associated liver disease or chronic cholestatic liver disease. II. Compare the differences in pruritus, weight gain, and liver function for both treatments.
PRIMARY: To compare the frequency of and time to relapse of Cytomegalovirus (CMV) gastrointestinal disease following foscarnet induction therapy only versus induction plus maintenance therapy. SECONDARY: To determine frequency of and time to recurrence of gastrointestinal symptoms, response rate of pathological lesions, and incidence of nongastrointestinal CMV disease in this patient population.
In patients who are receiving intravenous high dose Interleukin-2, patients will be randomized into two groups: group one will receive nystatin swish and swallow immediately before initiation of IL-2, and the second group will receive a placebo. The patients in each group will be monitored and evaluated for differences in the rate and severity of development of oral irritation during treatment. They will also be studied for differences between the two groups in the number of doses of IL-2 taken.
To evaluate the safety and efficacy of oral ganciclovir for prophylaxis against cytomegalovirus (CMV) retinal and gastrointestinal mucosal disease in HIV-infected patients with severe immunosuppression. The most recent treatments against CMV disease have been ganciclovir and foscarnet. Until recently, both drugs required intravenous administration. An oral form of ganciclovir, if shown to be effective therapy against CMV, would be a more suitable method of administration for prophylaxis.
To determine the oral bioavailability of three dose levels of oral ganciclovir given with and without glutamic acid hydrochloride in patients with cytomegalovirus (CMV) GI disease, and to compare the bioavailability of these regimens to that of standard intravenous (IV) ganciclovir. Long-term ganciclovir maintenance therapy has been recommended for CMV colitis or esophagitis following induction treatment. Oral ganciclovir is a likely candidate for maintenance because of its possible therapeutic value and ease of administration, but an optimum dose has not been determined. Since oral ganciclovir has a low bioavailability and is more soluble in an acid pH environment, the addition of glutamic acid hydrochloride may enhance gastrointestinal absorption of this drug.