Safety of Rabeprazole in Patients Under Multiple Treatments

Status Terminated

Clinical Trial Summary

The purpose of this study is to evaluate the safety of rabeprazole 20mg/day in polymedicated patients and to examine the necessity of adjusted dosage in both therapies (rabeprazole and concomitant drug). Proton pump inhibitors (PPI) act in the final step of the gastric secretion. PPI's block ATP-ase H+/K+ in gastric parietals cells. It has been described that inhibition of acid secretion has produced the recovery of the gastroesophageal pathology in a high percentage of the patients resistant to conventional drugs. In this context, the objective of the study is to evaluate the safety of rabeprazole as a concomitant treatment and examine the clinical practice the interaction with drugs whose absorption has gastric pH dependence.

Clinical Trial Description

Rabeprazole is a new proton pump inhibitor (PPI) with potent anti-secretion action and dose-dependence activity. Rabeprazole is rapidly eliminated by hepatic metabolism and renal clearance. In previous studies in healthy volunteers, interactions between sodium rabeprazole and drugs such as warfarin, theophyline, diazepam and phenytoin have not been found. The objective of the study is to evaluate the safety of rabeprazole as concomitant treatment and examine the clinical practice of the interaction with drugs whose absorption has a gastric pH dependence. This is an observational, multicenter, open and prospective study. It is expected to enroll 500 patients receiving rabeprazole and a concomitant drug (one or more). All data collected will be prospective and will include the following: demographic data, adherence and compliance with treatment, lifestyle (smoking and alcohol consumption) and dose of rabeprazole. Safety analysis will be based on adverse events. Observational Study: For patients with duodenal or gastric ulcer: rabeprazole 20mg per day, orally, for 4-6 weeks; For patients with erosive or ulcerate gastroesophagic reflux: rabeprazole orally 20mg/ per day, 4-8 weeks; For patients with gastroesophagic reflux requiring prolonged treatment: rabeprazole orally 10 or 20 mg per day; For patients with H. Pylori: rabeprazole orally 20mg twice per day , Clarithromycin orally 500mg 2 times per day and Amoxicillin 1gram orally twice daily for 1 week. ;

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00511745
Study type	Observational
Source	Janssen-Cilag, S.A.
Contact
Status	Terminated
Phase	N/A
Completion date	November 2002

View Details

See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.