HANGZHOU and SHAOXING, China, Sept. 28, 2023 /PRNewswire/ — Ascletis Pharma Inc. (HKEX: 1672, “Ascletis”) today announces positive interim data from the Phase IIb expansion cohort (the “Expansion Cohort”) of subcutaneously administered PD-L1 antibody ASC22 (Envafolimab) for functional…