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  • Title: The impact of low-dose aspirin on endoscopic gastric and duodenal ulcer rates in users of a non-selective non-steroidal anti-inflammatory drug or a cyclo-oxygenase-2-selective inhibitor.
    Author: Goldstein JL, Lowry SC, Lanza FL, Schwartz HI, Dodge WE.
    Journal: Aliment Pharmacol Ther; 2006 May 15; 23(10):1489-98. PubMed ID: 16669964.
    Abstract:
    BACKGROUND: The effect of low-dose aspirin on endoscopic ulcer incidence in cyclo-oxygenase-2-selective inhibitor or non-selective non-steroidal anti-inflammatory drug users remains controversial. AIM: To compare prospectively the incidence of endoscopic ulcers in healthy subjects receiving low-dose aspirin plus celecoxib or naproxen. METHODS: In this double-blind, placebo-controlled, 1-week study, subjects (50-75 years) were randomized to receive aspirin 325 mg o.d. plus either celecoxib 200 mg o.d., naproxen 500 mg b.d., or placebo. Baseline and end of study endoscopies were performed. The primary end point was incidence of one or more gastric and duodenal ulcers. RESULTS: A lower incidence of gastric and duodenal ulcers was seen in celecoxib/aspirin-treated subjects (19%) vs. naproxen/aspirin (27%; RR: 0.63, 95% CI: 0.44-0.92). Both naproxen/aspirin and celecoxib/aspirin groups demonstrated a higher incidence of gastric and duodenal ulcers vs. placebo/aspirin (8%; RR: 3.7, 95% CI: 1.8-7.6 and RR: 2.6, 95% CI: 1.2-5.8, respectively). CONCLUSIONS: Fewer endoscopic ulcers were observed in patients treated with celecoxib/aspirin vs. naproxen/aspirin. However, celecoxib/aspirin was associated with a significantly higher incidence of gastric and duodenal ulcers than aspirin alone. Further studies are required to determine the generalizability of these findings in the aspirin users and to determine the appropriate strategy to minimize risk in susceptible patients.
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