Famotidine for the Prevention of Gastric and Duodenal Ulcers Caused by Nonsteroidal Antiinflammatory Drugs
Ali S. Taha, Ph.D., Nicholas Hudson, M.D., Christopher J. Hawkey, D.M., Anthony J. Swannell, M.B., Penelope N. Trye, B.Sc., Jeremy Cottrell, M.Sc., Stephen G. Mann, M.B., Thomas J. Simon, M.D., Roger D. Sturrock, M.D., and Robin I. Russell, Ph.D.
Background Acid suppression with famotidine, a histamine H2receptorantagonist, provides protection against gastric injury in normalsubjects receiving short courses of aspirin or naproxen. Theefficacy of famotidine in preventing peptic ulcers in patientsreceiving long-term therapy with nonsteroidal antiinflammatorydrugs (NSAIDs) is not known.
Methods We studied the efficacy of two doses of famotidine (20mg and 40 mg, each given orally twice daily), as compared withplacebo, in preventing peptic ulcers in 285 patients withoutpeptic ulcers who were receiving long-term NSAID therapy forrheumatoid arthritis (82 percent) or osteoarthritis (18 percent).The patients were evaluated clinically and by endoscopy at baseline and after 4, 12, and 24 weeks of treatment. The evaluatorswere unaware of the treatment assignment. The primary end pointwas the cumulative incidence of gastric or duodenal ulcerationat 24 weeks.
Results The cumulative incidence of gastric ulcers was 20 percentin the placebo group, 13 percent in the group of patients receiving20 mg of famotidine twice daily (P = 0.24 for the comparisonwith placebo), and 8 percent in the group receiving 40 mg offamotidine twice daily (P = 0.03 for the comparison with placebo).The proportion of patients in whom duodenal ulcers developedwas significantly lower with both doses of famotidine than withplacebo (13 percent in the placebo group, 4 percent in the low-dosefamotidine group [P = 0.04], and 2 percent in the high-dosefamotidine group [P = 0.01]). Both doses of famotidine werewell tolerated.
Conclusions Treatment with high-dose famotidine significantlyreduces the cumulative incidence of both gastric and duodenalulcers in patients with arthritis receiving long-term NSAIDtherapy.
Source Information
From the Departments of Gastroenterology and Rheumatology, Glasgow Royal Infirmary, Glasgow, Scotland (A.S.T., R.D.S., R.I.R.); University Hospital, Nottingham, England (N.H., C.J.H., A.J.S.); Merck Sharp & Dohme, Hoddesdon, England (P.N.T., J.C., S.G.M.); and Merck Research Laboratories, Blue Bell, Pa. (T.J.S.).
Address reprint requests to Dr. Taha at the Department of Gastroenterology, Eastbourne General Hospital, King's Drive, Eastbourne, BN21 2UD, England.
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