A Traditional Herbal Formula Xianlinggubao for Pain Control and Function Improvement in Patients with Knee and Hand Osteoarthritis: A Multicenter, Randomized, Open-Label, Controlled Trial

Fei Wang, Lei Shi, Yaonan Zhang, Kunzheng Wang, Fuxing Pei, Hanmin Zhu, Zhanjun Shi, Tianzun Tao, Zhihua Li, Ping Zeng, Xiaobing Wang, Quan Ji, Ling Qin, Qingxun Xue, Fei Wang, Lei Shi, Yaonan Zhang, Kunzheng Wang, Fuxing Pei, Hanmin Zhu, Zhanjun Shi, Tianzun Tao, Zhihua Li, Ping Zeng, Xiaobing Wang, Quan Ji, Ling Qin, Qingxun Xue

Abstract

Evidence of efficacy of a traditional herbal formula Xianlinggubao (XLGB) for treatment of osteoarthritis (OA) is limited. The present study was designed to evaluate the efficacy of XLGB in the management of patients with knee and hand OA. This was a multicenter, stratified, open-label, randomized controlled trial conducted at six centers in China. People aged 40 or above, diagnosed with OA of the knee or hand, were randomly assigned to the XLGB treatment group or watchful waiting control group. Main outcome measures were the changes in the numeric pain rating scales (NPRS) and the Western Ontario and McMaster Universities Arthritis Index (WOMAC) or the Australian/Canadian Osteoarthritis Hand Index (AUSCAN) scores, from baseline to 6 months. In total 534 patients (272 to XLGB and 262 to control group) received interventions. Participants in the XLGB group exhibited significant improvement in NPRS (P < 0.001) and WOMAC score (P < 0.001) or AUSCAN score (P < 0.001) compared to control group. Treatment with XLGB at current regime significantly reduced pain and improved function of the knee and hand in patients with OA over a 6-month period, implying that XLGB could be suggested as an alternative treatment for patients with knee or hand OA.

Figures

Figure 1
Figure 1
Flow diagram of clinical trial design.

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