Journal
AMERICAN JOURNAL OF GASTROENTEROLOGY
Volume 112, Issue 2, Pages 282-289Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ajg.2016.526
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Funding
- Research Fund of the Kaohsiung Veterans General Hospital [VGHKS101-037, VGHKS102-011]
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OBJECTIVES: Proton pump inhibitor can effectively prevent recurrent peptic ulcers among atherosclerotic patients receiving clopidogrel monotherapy. However, the interaction between proton pump inhibitors and clopidogrel has raised concerns over the safety of combined use of the two medicines in clinical practice. The aims of this randomized-controlled, double-blind and double-dummy trial were to investigate the efficacy of histamine-2 receptor antagonist (H2RA) in the prevention of recurrent peptic ulcer in patients undergoing thienopyridine monotherapy. METHODS: From January 2012 to 2016, long-termed thienopyridine users with a peptic ulcer history who did not have peptic ulcers at initial endoscopy were randomly assigned to receive either famotidine (40 mg, before bedtime) or placebo (before bedtime) for 6 months. Follow-up endoscopy was performed at the end of the 6th month and whenever dyspepsia, hematemesis, or melena occurred. RESULTS: The cumulative incidence of recurrent peptic ulcer during the 6-month period was 7.0% in famotidine group (n =114) and 11.4% in the placebo group (n =114). The two patient groups had comparable cumulative incidence of peptic ulcer (difference, 4.4%; 95% confi dence interval (CI), -11.7 to 2.9%; P =0.239). Additionally, there was no difference in the cumulative incidence of ulcer bleeding (2.6% vs. 1.8%; difference, 0.8%; 95% CI, -0.6 to 2.4%, P =1.000) between famotidine and placebo groups. However, the former had a lower incidence of gastroduodenal erosion than the latter (21.1% vs. 36.8%; difference, 15.7%; 95% CI, -27.3 to -4.1%; P =0.013). CONCLUSIONS: Famotidine cannot decrease the incidence of peptic ulcer or ulcer bleeding in thienopyridine users with atherosclerotic disease and a history of peptic ulcer.
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