Wangbi capsule combined methotrexate tablets for treatment of Rheumatoid Arthritis: a Randomized,Double-blind,Single analog,Positive Drug Parallel-group controlled clinical study

INTERVENTION: Experimental group:Wangbi capsule combined methotrexate tablets;Control group:Simulation of Wangbi capsule combined methotrexate tablets; CONDITION: Rheumatoid Arthritis PRIMARY OUTCOME: DAS28; SECONDARY OUTCOME: Visual Analogue Scale/Score, VAS ;Morning stiffness time;Joint tenderness;ACR20, ACR50, ACR70;TCM syndrome score;HAQ‐DI; INCLUSION CRITERIA: (1) meet the diagnostic criteria of ACR/EULAR classification criteria in 2010; (2) Aged 18 and 70 years; (3) DAS28 3.2 to 5.1; (4) RA patients who Compliance with the deficiency of liver and kidney and rheumatism blocked collaterals or phlegm stasis; (5) the subject is informed and voluntarily signed the informed consent.