• G Wells, D Haguenauer, B Shea, M E Suarez-Almazor, V A Welch, and P Tugwell.
• Department of Epidemiology and Community Medicine, University of Ottawa, 451 Smyth Road, Room 3227, Ottawa, Ontario, Canada, K1H 8M5. gawells@sprint.ca
• Cochrane Db Syst Rev. 2000 Jan 1; 1998 (2): CD001083CD001083.

ObjectivesTo estimate the short-term (up to one year) effects of cyclosporine for rheumatoid arthritis.Search StrategyWe searched the Cochrane Musculoskeletal Group trials register, and Medline, up to 1997, using the search strategy developed by the Cochrane Collaboration (Dickersin 1994). The search was complemented with bibliography searching of the reference list of the trials retrieved from the electronic search. Key experts in the area were contacted for further published and unpublished articles.Selection CriteriaAll randomized clinical trials (RCTs) and controlled clinical trials (CCTs) comparing cyclosporine against placebo in patients with rheumatoid arthritis.Data Collection And AnalysisTwo reviewers determined the trials to be included based on inclusion and exclusion criteria (GW, MSA). Data were independently abstracted by two reviewers (DH, GW),and checked by a third reviewer (BS) using a pre-developed form for the rheumatoid arthritis sub-group of the Cochrane Musculoskeletal Group. Methodological quality of the RCTs and CCTs was assessed by two reviewers (BS, DH). Rheumatoid arthritis outcome measures were extracted from the publications for change from baseline endpoints. Sufficient data were obtained to include in the pooled analysis the number of swollen joints, physician global assessment, patient global assessment and erythrocyte sedimentation rate (ESR).Main ResultsThree trials and 318 patients were included. A statistically significant decrease in the number of tender and swollen joints was observed for cyclosporine when compared to placebo. The standardized mean difference (SMD) for the change in the number of swollen joints was -0.969. Significant improvements in pain and the functional index were also found for cyclosporine. More side effects occurred in the cyclosporine group compared to placebo.Reviewer's ConclusionsCyclosporine has an important clinical benefit int the short-term (up to one year) treatment of patients with progressive rheumatoid arthritis.

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