https://clinicaltrials.gov/ct2/show/NCT03655795?type=Intr&cond=COPD&phase=01234&lupd_s=10%2F23%2F2018&lupd_d=14&sort=nwst Autologous Transplantation of Bronchial Basal Cells for Treatment of COPD Condition : COPD Intervention : Biological: Bronchial basal cells Sponsors : Ruijin Hospital; Regend Therapeutics Not yet recruiting NCT03655795 Fri, 31 Aug 2018 12:00:00 EDT