Efficacy of Bi Qi Capsules in combination with methotrexate in the treatment of rheumatoid arthritis: A protocol of double-blind randomized controlled trial

BACKGROUND: It is known that Bi Qi Capsules (BQC) have synergistic effects when combined with Methotrexate, but there is a lack of clinical studies on the long-term efficacy and safety of the combination of the 2 in the treatment of rheumatoid arthritis (RA). Therefore, the purpose of this randomized controlled trial was to evaluate the long-term efficacy and safety of this treatment. METHODS: This was a prospective, double-blind, single-simulation, randomized controlled trial investigating the efficacy and safety of BQC in combination with Methotrexate in the treatment of RA, and was approved by the Clinical Research Ethics Committee of the hospital. Patients were randomized in a 1:1 ratio to either the observation or control group and were respectively followed up for 6 months after receiving 12 weeks of treatment. The observation indexes included: total effective rate, DAS-28 score, inflammatory indexes, and adverse reactions. Finally, the collected data was statistically analyzed by SPSS version 18.0. DISCUSSION: This study evaluated the long-term efficacy of BQC in combination with Methotrexate in the treatment of RA. The trial results of this study will provide new ideas for choosing a combination of Chinese and Western medicine protocols for the treatment of RA. TRIAL REGISTRATION: OSF Registration number: DOI 10.17605/OSF.IO/U85GX.