Comparison of Upper Gastrointestinal Toxicity of Rofecoxib and Naproxen in Patients with Rheumatoid Arthritis
Claire Bombardier, M.D., Loren Laine, M.D., Alise Reicin, M.D., Deborah Shapiro, Dr.P.H., Ruben Burgos-Vargas, M.D., Barry Davis, M.D., Ph.D., Richard Day, M.D., Marcos Bosi Ferraz, M.D., Ph.D., Christopher J. Hawkey, M.D., Marc C. Hochberg, M.D., Tore K. Kvien, M.D., Thomas J. Schnitzer, M.D., Ph.D., for The VIGOR Study Group
Background Each year, clinical upper gastrointestinal eventsoccur in 2 to 4 percent of patients who are taking nonselectivenonsteroidal antiinflammatory drugs (NSAIDs). We assessed whetherrofecoxib, a selective inhibitor of cyclooxygenase-2, wouldbe associated with a lower incidence of clinically importantupper gastrointestinal events than is the nonselective NSAIDnaproxen among patients with rheumatoid arthritis.
Methods We randomly assigned 8076 patients who were at least50 years of age (or at least 40 years of age and receiving long-termglucocorticoid therapy) and who had rheumatoid arthritis toreceive either 50 mg of rofecoxib daily or 500 mg of naproxentwice daily. The primary end point was confirmed clinical uppergastrointestinal events (gastroduodenal perforation or obstruction,upper gastrointestinal bleeding, and symptomatic gastroduodenalulcers).
Results Rofecoxib and naproxen had similar efficacy againstrheumatoid arthritis. During a median follow-up of 9.0 months,2.1 confirmed gastrointestinal events per 100 patient-yearsoccurred with rofecoxib, as compared with 4.5 per 100 patient-yearswith naproxen (relative risk, 0.5; 95 percent confidence interval,0.3 to 0.6; P<0.001). The respective rates of complicatedconfirmed events (perforation, obstruction, and severe uppergastrointestinal bleeding) were 0.6 per 100 patient-years and1.4 per 100 patient-years (relative risk, 0.4; 95 percent confidenceinterval, 0.2 to 0.8; P=0.005). The incidence of myocardialinfarction was lower among patients in the naproxen group thanamong those in the rofecoxib group (0.1 percent vs. 0.4 percent;relative risk, 0.2; 95 percent confidence interval, 0.1 to 0.7);the overall mortality rate and the rate of death from cardiovascularcauses were similar in the two groups.
Conclusions In patients with rheumatoid arthritis, treatmentwith rofecoxib, a selective inhibitor of cyclooxygenase-2, isassociated with significantly fewer clinically important uppergastrointestinal events than treatment with naproxen, a nonselectiveinhibitor.
Source Information
From the Institute for Work and Health, Mount Sinai Hospital, and the University Health Network, Toronto (C.B.); the Gastrointestinal Division, Department of Medicine, University of Southern California School of Medicine, Los Angeles (L.L.); Merck, Rahway, N.J. (A.R., D.S.); the Faculty of Medicine and Research Division, Universidad Nacional Autonoma de Mexico, and Hospital General de Mexico, Mexico City, Mexico (R.B.-V.); University of TexasHouston School of Public Health, Houston (B.D.); the Department of Clinical Pharmacology, University of New South Wales and St. Vincent's Hospital, Sydney, Australia (R.D.); the Division of Rheumatology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil (M.B.F.); the Division of Gastroenterology, School of Medical and Surgical Sciences, University Hospital, Nottingham, United Kingdom (C.J.H.); the Division of Rheumatology and Clinical Immunology, University of Maryland, Baltimore (M.C.H.); Oslo City Department of Rheumatology, and Diakonhjemmet Hospital, Oslo, Norway (T.K.K.); and the Office of Clinical Research and Training, Northwestern University School of Medicine, Chicago (T.J.S.). Arthur Weaver, M.D., Arthritis Center of Nebraska, Lincoln, was another author.
Address reprint requests to Dr. Bombardier at the Institute for Work and Health, 250 Bloor St. E., Suite 702, Toronto, ON M4W 1E6, Canada, or at claire.bombardier{at}utoronto.ca.
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