Double-blind, placebo- and arthrocentesis-controlled trial; patients (N=100) were randomized into 5 groups (saline-control weekly × 5, plus arthrocentesis at baseline; arthrocentesis weekly × 5; HYALGAN® 20 mg weekly × 1, plus arthrocentesis weekly × 5; HYALGAN® 20 mg weekly × 3, plus arthrocentesis at baseline and days 21 and 28; HYALGAN® 20 mg weekly × 5, plus arthrocentesis at baseline). 6
Single-blinded, parallel-design, 1-year clinical study with sequential enrollment of (N=60) to assess efficacy and safety of intra-articular (i.a.) HYALGAN® with or without a home exercise program for the management of OA knee pain. 16
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