A Multi-center, Randomized, Double-blind, Active-controlled, Pivotal, Non-inferiority Clinical Study to Evaluate the Efficacy and Safety of 'DKM420' in Knee Osteoarthritis Patients.
To prove the non-inferiority of DKM420 by evaluating the injecting efficacy and safety DKM 420 and control for patients who have osteoarthritis of Knee.