PMID- 34717765 OWN - NLM STAT- MEDLINE DCOM- 20220323 LR - 20220323 IS - 1757-6512 (Electronic) IS - 1757-6512 (Linking) VI - 12 IP - 1 DP - 2021 Oct 30 TI - Treatment of knee osteoarthritis with intra-articular injection of allogeneic adipose-derived stem cells (ADSCs) ELIXCYTE(R): a phase I/II, randomized, active-control, single-blind, multiple-center clinical trial. PG - 562 LID - 10.1186/s13287-021-02631-z [doi] LID - 562 AB - OBJECTIVE: To evaluate the safety and efficacy of intra-articular (IA) injection of allogeneic adipose-derived stem cells (ADSCs) ELIXCYTE(R) for knee osteoarthritis. METHODS: This was a patient-blind, randomized, active-control trial consisted of 4 arms including hyaluronic acid (HA) control and 3 ELIXCYTE(R) doses. A total of 64 subjects were screened, and 57 subjects were randomized. The primary endpoints included the changes from baseline to post-treatment visit of Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score at Week 24 and the incidence of adverse events (AEs) and serious adverse events (SAEs). RESULTS: No ELIXCYTE(R)-related serious adverse events were reported during 96 weeks of follow-up and no suspected unexpected serious adverse reaction (SUSAR) or death was reported. The changes of the primary endpoint, WOMAC pain score at Week 24, showed significant differences in all ELIXCYTE(R) groups, as well as in HA groups between post-treatment visit and baseline. The ELIXCYTE(R) groups revealed significant decreases at Week 4 compared to HA group in WOMAC total scores, stiffness scores, functional limitation scores suggested the potential of ELIXCYTE(R) in earlier onset compared to those from HA. The significant differences of visual analog scale (VAS) pain score and Knee Society Clinical Rating System (KSCRS) functional activities score at Week 48 after ELIXCYTE(R) administration suggested the potential of ELIXCYTE(R) in the longer duration of the effectiveness compared to HA group. CONCLUSIONS: ELIXCYTE(R) for knee osteoarthritis treatment was effective, safe, and well-tolerated. The efficacy results were showed that ELIXCYTE(R) conferred the earlier onset of reductions in pain scores and improvements in functional scores than HA group. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02784964. Registered 16 May, 2016-Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT02784964. CI - (c) 2021. The Author(s). FAU - Chen, Cheng-Fong AU - Chen CF AD - Division of Joint Reconstruction, Department of Orthopedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan. AD - Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. FAU - Hu, Chih-Chien AU - Hu CC AD - Division of Joint Reconstruction, Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan. AD - Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan. AD - College of Medicine, Chang Gung University, Taoyuan, Taiwan. FAU - Wu, Chen-Te AU - Wu CT AD - Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Linkou, Taiwan. FAU - Wu, Hung-Ta H AU - Wu HH AD - Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan. AD - Department of Radiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. FAU - Chang, Chun-Shin AU - Chang CS AD - Craniofacial Research Center, Department of Medical Research, Department of Plastic and Reconstructive Surgery and Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taoyuan, Taiwan. AD - Department of Chemical and Materials Engineering, College of Engineering, Chang Gung University, Taoyuan, Taiwan. FAU - Hung, Yi-Pei AU - Hung YP AD - UnicoCell BioMed Co. Ltd., Taipei, Taiwan. FAU - Tsai, Chia-Chu AU - Tsai CC AD - UnicoCell BioMed Co. Ltd., Taipei, Taiwan. FAU - Chang, Yuhan AU - Chang Y AUID- ORCID: 0000-0002-7369-0300 AD - Division of Joint Reconstruction, Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan. yhchang@cgmh.org.tw. AD - Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan. yhchang@cgmh.org.tw. AD - College of Medicine, Chang Gung University, Taoyuan, Taiwan. yhchang@cgmh.org.tw. LA - eng SI - ClinicalTrials.gov/NCT02784964 PT - Clinical Trial, Phase I PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20211030 PL - England TA - Stem Cell Res Ther JT - Stem cell research & therapy JID - 101527581 RN - 9004-61-9 (Hyaluronic Acid) SB - IM MH - Double-Blind Method MH - *Hematopoietic Stem Cell Transplantation MH - Humans MH - Hyaluronic Acid/therapeutic use MH - Injections, Intra-Articular MH - *Osteoarthritis, Knee/drug therapy MH - Single-Blind Method MH - Treatment Outcome PMC - PMC8557559 OTO - NOTNLM OT - ADSCs OT - Adipose tissue-derived stem cells OT - ELIXCYTE(R) OT - HA OT - Hyaluronic acid OT - KSCRS OT - Knee osteoarthritis OT - VAS OT - WOMAC COIS- The authors declare that they have no competing interests. EDAT- 2021/11/01 06:00 MHDA- 2022/03/24 06:00 PMCR- 2021/10/30 CRDT- 2021/10/31 20:40 PHST- 2021/08/01 00:00 [received] PHST- 2021/10/04 00:00 [accepted] PHST- 2021/10/31 20:40 [entrez] PHST- 2021/11/01 06:00 [pubmed] PHST- 2022/03/24 06:00 [medline] PHST- 2021/10/30 00:00 [pmc-release] AID - 10.1186/s13287-021-02631-z [pii] AID - 2631 [pii] AID - 10.1186/s13287-021-02631-z [doi] PST - epublish SO - Stem Cell Res Ther. 2021 Oct 30;12(1):562. doi: 10.1186/s13287-021-02631-z.