Upper gastroduodenal ulceration in arthritis patients treated with celecoxib

OBJECTIVE: To evaluate the comparative incidence of endoscopic gastroduodenal ulcers in patients with rheumatoid arthritis or osteoarthritis treated with celecoxib. DESIGN: Quantitative systematic review of randomized controlled trials. SUBJECTS: Patients (n = 4632) with rheumatoid arthritis or osteoarthritis reported in five trials. MAIN OUTCOME MEASURES: Rate ratios, rate differences, and the number needed to harm were calculated for the incidence of endoscopically documented gastroduodenal ulcers. RESULTS: Pooled rate ratios (RRs) relative to placebo for endoscopic ulcers at 12 weeks were 1.96 (95% CI 0.85 to 4.55) for celecoxib 100 mg twice daily and 2.35 (95% CI 1.02 to 5.38) for celecoxib 200 mg twice daily. There was no significant difference in gastroduodenal ulcers at 12 weeks between celecoxib 200 mg twice daily and celecoxib 100 mg twice daily; the corresponding pooled RR was 1.21 (95% CI 0.62 to 2.38). In contrast, celecoxib 200 mg twice daily was associated with a significantly lower rate of gastroduodenal ulcers than was naproxen 500 mg twice daily at 12 weeks (RR 0.24; 95% CI 0.17 to 0.33). On average, for every seven patients treated with naproxen, one more had an endoscopic ulcer than if they were treated with celecoxib. Celecoxib 200 mg twice daily also had a significantly lower risk of endoscopic ulcers than did either modified-release diclofenac 75 mg twice daily at 24 weeks (RR 0.24; 95% CI 0.11 to 0.52) or ibuprofen 800 mg three times daily at 12 weeks (RR 0.30; 95% CI 0.20 to 0.46). CONCLUSIONS: Endoscopic studies have shown that celecoxib, at a wide range of doses, is associated with a lower incidence of gastroduodenal ulcers than are diclofenac, ibuprofen, or naproxen. The incidence rates of gastroduodenal ulcers associated with celecoxib were similar, although not equivalent, to placebo. Head-to-head comparisons suggest that, at the wide range of doses studied (100-800 mg/d), there are no dose-related increases in endoscopic gastroduodenal ulcers with celecoxib. The results of longer term comparative trials of celecoxib based on clinical outcomes are needed to determine celecoxib's ultimate risk-benefit profile.

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