HONG KONG and SAN DIEGO, Feb. 09, 2021 (GLOBE NEWSWIRE) -- China Oncology Focus Limited (COF), an affiliate of Lee's Pharmaceutical Holdings Limited (Lee's Pharma, HKEX: 950), and Sorrento Therapeutics, Inc. (Sorrento, Nasdaq: SRNE), today announced that its anti-PD-L1 antibody, socazolimab, licensed from Sorrento to COF for the greater China territory, has been granted breakthrough therapy designation (BTD) by the China National Medical Products Administration (NMPA) to treat recurrent or metastatic cervical cancer.