Efficacy & safety of genetically engineered chondrocytes with TGF-β1 vs placebo in knee OA
102 patients with grade III (Kellgren-Lawrence) knee osteoarthritis were randomized to intra-articular injection administration of either genetically engineered chondrocytes expressing TGF-b1 (GEC-TGF-b1; TissueGene-C; TissueGene Inc.) or placebo.