A Phase I, Randomized, Single-centered, Double-blinded Clinical Trial of Allogenic Adipose Tissue-Derived Mesenchymal Progenitor Cells Therapy for Knee Osteoarthritis.~This is a randomized,single-blind, double-blinded,phase I clinical trial. Subjects who are with a clinical diagnosis of knee osteoarthritis cartilage defects and will be randomly distributed 1:1:1 to different dosage group after signing the ICF and screening tests.The treatment will accept Allogenic ReJoinTM at the first and fourth week.The duration of the therapy is 48 weeks.
Evaluate the safety and efficacy of Allogenic Adipose Tissue-Derived Mesenchymal Progenitor Cells Therapy for Knee Osteoarthritis.