Duration of Symptom Relief and Early Trajectory of Adverse Events for Oral Nonsteroidal Antiinflammatory Drugs in Knee Osteoarthritis: A Systematic Review and Meta-Analysis
Abstract
Objective: Despite an extensive body of research on nonsteroidal antiinflammatory drugs (NSAIDs) in osteoarthritis, the duration of their efficacy and timeline of adverse event (AE) onset have been understudied. We conducted a systematic review and meta-analyses from 2 to 26 weeks to characterize the efficacy and AE trajectories of oral NSAIDs in knee osteoarthritis.
Methods: We searched MEDLINE, Embase, Web of Science, Google Scholar, and the Cochrane Database from inception to May 2018. Randomized controlled trials assessing the efficacy and/or safety of Federal Drug Administration-approved NSAIDs in knee osteoarthritis patients were included. Two independent reviewers assessed quality and extracted data. We calculated standardized mean differences (SMDs) and risk ratios (RRs) with 95% confidence intervals (95% CIs).
Results: We included 72 randomized controlled trials (26,424 participants). NSAIDs demonstrated moderate, statistically significant effects on pain that peaked at 2 weeks (SMD -0.43 [95% CI -0.48, -0.38]), but the magnitude of the effects decreased over time. The results for function were similar. The incidence of gastrointestinal (GI) AEs was significantly higher in NSAID users than placebo users as early as 4 weeks (RR 1.38 [95% CI 1.21, 1.57]). The incidence of cardiovascular (CV) AEs in NSAID users was not significantly different from placebo. Most GI and CV AEs were transient and of minor severity.
Conclusion: NSAIDs produced significant pain and function…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 26,424 participants or records.
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