Rituximab biosimilar(Eden Biologics, Inc.)

Approximately 500 subjects will be enrolled in this study. Subjects who meet the inclusion criteria will be randomized (1:1) into two groups. The study group will receive JHL1101 in combination with CHOP regimen, and the control group will receive rituximab (MabThera) in combination with CHOP. The dose of 375 mg/m2 is given intravenously on Day 1 (D1) of each cycle, and CHOP regimen is administered after the infusion of JHL1101 or rituximab is completed. Efficacy evaluation will be performed at baseline, after 3 cycles treatment (D18± 2 of Cycle 3, before the next cycle of treatment) and after 6 cycles treatment (D21±3 of Cycle 6). Subjects evaluated as progressive disease (PD) should be withdrawn from the study treatment and their subsequent treatments will be determined by the investigator. The analysis of primary endpoint is the ORR over the 6-cycle treatment period.

This is a multicentre, randomised, double-blind, parallel group study to compare the pharmacokinetics (PK), pharmacodynamics (PD), immunogenicity, safety, tolerability and efficacy of JHL1101 versus MabThera in subjects with moderate to severe RA who have previously failed at least 1 tumour necrosis factor alpha (TNF) inhibitor (i.e., intolerance or documented active disease despite at least 12 weeks treatment according to the TNF inhibitor-approved treatment and dosage), and are on concomitant treatment with MTX.