A Multi-center, Randomized, Open-label, Parallel-arm Controlled Study Comparing Demand-based Monotherapy of Non-steroidal Anti-inflammatory Drug (NSAID) vs. Demand-based NSAID Combined With Sodium Hyaluronate Injection in the Treatment of Chinese Patients With Mild to Moderate Knee Osteoarthritis
This is a multi-center, randomized, open-label, parallel-arm phase IV clinical study, for which a total of 300 patients with mild to moderate knee osteoarthritis will be enrolled. In the first 4 weeks (run-in period), the subjects will receive on-demand treatment with Diclofenac Sodium Sustained Release Tablets (DICL-SR) 75mg, quaque die(QD). After the run-in period, the subjects, if their knee pain has not worsened to a level requiring surgical treatment, will be randomized to two groups in 1:1 ratio: one group receiving Artz® via intra-articular injection (once weekly, for 5 consecutive weeks) in combination with DICL-SR 75mg,quaque die(QD), for 12 consecutive weeks on demand. The other group receiving DICL-SR 75mg alone,quaque die(QD), for 12 consecutive weeks on demand. DICL-SR 75mg quaque die(QD) may be administered to the subjects of both groups on demand as long as they have a knee pain. If the knee pain has disappeared, this drug may be withdrawn. However, if the pain occurs again and requires treatment, oral administration of DICL-SR may be resumed. A subject is allowed to withdraw from this study prematurely if unable to tolerate the adverse effects.
A total of 8 visits have been scheduled for this study, including Visit 1/screening period (Week -4), Visit 2/baseline (Week 0), Visit 3 (Week 1), Visit 4 (Week 2), Visit 5 (Week 3), Visit 6 (Week 4), Visit 7 (Week 8) and Visit 8 (Week 12).
A total of 300 subjects will participate in this study at 6 to 8 centers in China, and patient enrollment is expected to take up to 12 months.
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