Coherus BioSciences, Inc. and Shanghai Junshi Biosciences Co., Ltd. announced publication of a cover article in the September issue of Nature Medicine featuring clinical data from the pivotal study “JUPITER-02”, a randomized, double-blind, placebo-controlled Phase 3 clinical trial evaluating toripalimab plus chemotherapy for the first-line treatment of recurrent or metastatic nasopharyngeal carcinoma (NPC). Titled Toripalimab or placebo plus chemotherapy as first-line treatment in advanced nasopharyngeal carcinoma: a multicenter randomized phase 3 trial, the paper highlights that the addition of toripalimab to standard of care gemcitabine-cisplatin (GP) chemotherapy as a first-line treatment for patients with recurrent or metastatic NPC provided superior progression free survival (PFS) compared to GP alone [median PFS of 11.7 vs 8.0 months, hazard ratio (HR) = 0.52 (95% confidence interval (CI): 0.36–0.74), P = 0.0003], and with a manageable safety profile. The impact of the addition of toripalimab on PFS was demonstrated in patients regardless of PD-L1 expression status.

Although overall survival data were not yet mature, as of February 18, 2021, a 40% reduction in risk of death was observed in the toripalimab arm compared to the placebo arm (HR = 0.603 (95% CI: 0.364–0.997)). The incidence of grade =3 treatment emergent adverse events (TEAEs) (89.0% vs 89.5%), TEAEs leading to discontinuation of toripalimab/placebo (7.5% vs 4.9%), and fatal TEAEs (2.7% vs 2.8%) was similar between both arms. Immune-related adverse events (irAEs) (39.7% vs. 18.9%) and Grade =3 irAEs (7.5% vs.

0.7%) were more frequent in the toripalimab arm. The full results can be found in the on-line edition of Nature Medicine. A biologics license application has been submitted to the U.S. Food and Drug Administration for toripalimab in combination with gemcitabine and cisplatin for first-line treatment for patients with advanced recurrent or metastatic NPC and toripalimab monotherapy for second-line or above treatment of recurrent or metastatic NPC after platinum-containing chemotherapy.