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Total glucosides of paeony for rheumatoid arthritis: A systematic review of randomized controlled trials
Jing Luo1, Di-Er Jin1, Guo-Yan Yang2
1Traditional Chinese Medicine Department of Rheumatism, China-Japan Friendship Hospital, Yinghua East Road No. 2, Chaoyang District, Beijing 100029, China.
Background:
Total glucosides of paeony (TGP) is commonly used to treat rheumatoid arthritis (RA) in China. However, clinical practice hasn't been well informed by evidence from appropriately conducted systematic reviews. This PRISMA-compliant systematic review aims at examining the effectiveness and safety of TGP for RA.
Methods:
Randomized controlled trials (RCTs) comparing TGP with placebo, no treatment, or disease-modifying antirheumatic drugs (DMARDs) for patients with RA were retrieved by searching seven databases. Primary outcomes included disease improvement and disease remission. Secondary outcomes included adverse effects, pain, health-related quality of life, C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR). Data extraction and analyses were conducted according to the Cochrane standards. We assessed risk of bias for each included studies and quality of evidence on pre-specified outcomes.
Results:
Eight studies enrolling 1209 patients with active RA were included in this systematic review. On the basis of traditional DMARD(s), TGP might be beneficial for patients with RA in improvement of American College of Rheumatology (ACR) 20 response rate, ACR 50 response rate, ACR70 response rate, and in reduction of adverse effects, compared with no treatment. The overall methodological quality of included studies and the quality of evidence for each outcome were limited.
Conclusions:
Current trials suggested potential benefits of TGP for RA on the basis of traditional DMARD(s). Therefore, TGP may be a good choice for RA as an adjuvant therapy. However, considering the limited methodological quality and strength of evidence, high-quality RCTs are warranted to support the use of TGP for RA.
