A Comparison of Omeprazole with Ranitidine for Ulcers Associated with Nonsteroidal Antiinflammatory Drugs
Neville D. Yeomans, M.D., Zsolt Tulassay, Ph.D., László Juhász, Ph.D., István Rácz, Ph.D., John M. Howard, M.D., Christoffel J. van Rensburg, M.Med.(Int.), Anthony J. Swannell, M.B., Christopher J. Hawkey, D.M., for The Acid Suppression Trial: Ranitidine versus Omeprazole for NSAID-Associated Ulcer Treatment (ASTRONAUT) Study Group
Background Suppressing acid secretion is thought to reduce therisk of ulcers associated with regular use of nonsteroidal antiinflammatorydrugs (NSAIDs), but the best means of accomplishing this isuncertain.
Methods We studied 541 patients who required continuous treatmentwith NSAIDs and who had ulcers or more than 10 erosions in eitherthe stomach or duodenum. Patients were randomly assigned todouble-blind treatment with omeprazole, 20 mg or 40 mg orallyper day, or ranitidine, 150 mg orally twice a day, for fouror eight weeks, depending on when treatment was successful (definedas the resolution of ulcer and the presence of fewer than fiveerosions in the stomach and fewer than five erosions in theduodenum, and not more than mild dyspepsia). We randomly assigned432 patients in whom treatment was successful to maintenancetreatment with either 20 mg of omeprazole per day or 150 mgof ranitidine twice a day for six months.
Results At eight weeks, treatment was successful in 80 percent(140 of 174) of the patients in the group given 20 mg of omeprazoleper day, 79 percent (148 of 187) of those given 40 mg of omeprazoleper day, and 63 percent (110 of 174) of those given ranitidine(P<0.001 for the comparison with 20 mg of omeprazole andP = 0.001 for the comparison with 40 mg of omeprazole). Therates of healing of all types of lesions were higher with omeprazolethan with ranitidine. During maintenance therapy, the estimatedproportion of patients in remission at the end of six monthswas 72 percent in the omeprazole group and 59 percent in theranitidine group. The rates of adverse events were similar betweengroups during both phases. Both medications were well tolerated.
Conclusions In patients who use NSAIDs regularly, omeprazolehealed and prevented ulcers more effectively than did ranitidine.
Source Information
From the Department of Medicine, University of Melbourne, Western Hospital, Melbourne, Australia (N.D.Y.); the Second Department of Internal Medicine, Semmelweis University Medical School, Budapest, Hungary (Z.T.); the Second Department of Medicine, Borsod County Teaching Hospital, Miskolc, Hungary (L.J.); the First Department of Medicine, Petz Aladár Teaching County Hospital, Gyor, Hungary (I.R.); the Division of Gastroenterology, Department of Medicine, London Health Sciences, London, Ont., Canada (J.M.H.); the Department of Gastroenterology, Tygerberg Hospital, Tygerberg, South Africa (C.J.R.); and the Department of Rheumatology and Rehabilitation, City Hospital (A.J.S.), and the Division of Gastroenterology, University Hospital (C.J.H.), Nottingham, United Kingdom.
Address reprint requests to Dr. Yeomans at the Department of Medicine, University of Melbourne, Western Hospital, Footscray, Victoria 3011, Australia.
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