Rebamipide as a Potential Alternative Gastroprotective Agent to Proton Pump Inhibitor in Elderly Chronic Nonsteroidal Anti-Inflammatory Drug Users without Risk Factors
Abstract
Purpose: The use of proton pump inhibitors (PPI) is recommended to prevent nonsteroidal anti-inflammatory drug (NSAID)-induced gastrointestinal (GI) complications. The incidence of several adverse effects during the long-term use of PPI prompts the search for other alternatives. Limited studies have evaluated the efficacy of rebamipide, a widely used mucoprotective drug, as a gastroprotective agent (GPA) compared to PPI, focusing on the elderly chronic NSAID users, nor with GI risk stratification. We aimed to determine the population who would get benefit from the use of rebamipide as an alternative to PPI to prevent traditional nonsteroidal anti-inflammatory drug (tNSAID)-associated GI complications.
Patients and methods: We identified 41,889 and 35,708 elderly chronic tNSAID users with PPI and rebamipide co-therapy, respectively, from the national claims database. Outcome was defined as hospitalization or emergency department visits due to serious GI complications. Propensity score-matched cohorts were constructed and compared within risk strata.
Results: In high and moderate risk groups with two risk factors, rebamipide showed a higher risk of serious GI complication compared to PPI (aHR 2.63, 95% CI 1.24-5.59 and aHR 2.42, 95% CI 1.21-4.83, respectively). However, in elderly patients without risk factors, there was no significant difference in the risk of serious GI complications between PPI and rebamipide (aHR 0.69, 95% CI 0.27-1.76).
Conclusion: This study suggested…
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