Gastroenterology

Gastroenterology

Volume 127, Issue 4, October 2004, Pages 1038-1043
Gastroenterology

Clinical-alimentary tract
Celecoxib versus diclofenac plus omeprazole in high-risk arthritis patients: Results of a randomized double-blind trial

https://doi.org/10.1053/j.gastro.2004.07.010Get rights and content

Background & Aims: The gastric safety of cyclooxgenase-2 inhibitors and prophylactic antisecretory therapy in high-risk arthritis patients is unclear. We studied the ulcer incidence and factors predicting ulcer recurrence in a prospective, double-blinded trial. Methods: We studied patients who presented with nonsteroidal anti-inflammatory drug-associated ulcer bleeding. After ulcer healing, patients who were negative for Helicobacter pylori were randomly assigned to celecoxib 200 mg twice a day plus omeprazole placebo once daily or diclofenac 75 mg twice daily plus omeprazole 20 mg once daily for 6 months. Patients underwent endoscopy if they developed recurrent bleeding. Those without recurrent events underwent endoscopy at their last follow-up visit. Results: Two hundred eighty-seven patients were enrolled; 24 had recurrent gastrointestinal complications. Among 259 patients without events, 222 underwent endoscopy (116 received celecoxib and 106 received diclofenac plus omeprazole). The probability of recurrent ulcers in 6 months was 18.7% in the celecoxib group and 25.6% in the diclofenac plus omeprazole group (difference, −6.7%; 95% CI: −17.8% to 3.9%) (P = 0.21). Combining bleeding and endoscopic ulcers, 24.1% in the celecoxib group and 32.3% in the diclofenac plus omeprazole group had recurrent ulcers in 6 months (difference, −8.2%; 95% CI: −19.5% to 2.9%) (P = 0.15). Treatment-induced significant dyspepsia (hazard ratio, 5.3; 95% CI: 2.6–10.8), age ≥75 (hazard ratio, 2.0; 95% CI: 1.1–3.5), and comorbidity (hazard ratio, 2.1; 95% CI: 1.2–3.7) independently predicted ulcer recurrence. Conclusions: Among patients with previous ulcer bleeding, neither celecoxib nor diclofenac plus omeprazole adequately prevents ulcer recurrence. Treatment-induced significant dyspepsia is an indication for endoscopic evaluation.

Section snippets

Study population and setting

We screened consecutive patients with arthritis who presented with ulcer bleeding while receiving NSAIDs to the Endoscopy Center of Prince of Wales Hospital at The Chinese University of Hong Kong. The inclusion criteria were ulcer healing confirmed on follow-up endoscopy, a negative test for Helicobacter pylori or successful eradication of Helicobacter pylori based on histology, and anticipated regular use of NSAIDs for the duration of the trial. The exclusion criteria were concomitant use of

Results

A total of 287 patients were enrolled. Twenty-four patients developed recurrent GI bleeding; 7 in the celecoxib group and 9 in the diclofenac plus omeprazole group were adjudicated to have recurrent ulcer bleeding according to prespecified criteria.10 Among patients with recurrent ulcer bleeding, 3 used concomitant low-dose aspirin (1 in the celecoxib group and 2 in the diclofenac plus omeprazole group), and 1 who received diclofenac plus omeprazole had relapse of H. pylori infection. Eighteen

Discussion

We studied the overall incidence of ulcers to evaluate the gastric safety of long-term treatment with celecoxib or diclofenac plus omeprazole in very high-risk patients, i.e., those with a recent episode of ulcer bleeding. Among patients without recurrent gastrointestinal complications within the study period, the incidence of recurrent gastroduodenal ulcers was unexpectedly high: 19% of patients receiving celecoxib and 26% of patients receiving diclofenac plus omeprazole had recurrent ulcers

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Supported by a research grant from the Health Services Research Committee of Hong Kong (HSRC S111009).

Dr. Francis Chan received a consulting fee from Pfizer in 2002.

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