TOKYO and SHANGHAI, Feb. 5, 2026 /PRNewswire/ -- Eisai Co., Ltd. ("Eisai") and Shanghai Henlius Biotech, Inc. ("Henlius") today announced the conclusion of an exclusive commercialization and co-exclusive development and manufacturing license agreement for the anti-PD-1 antibody serplulimab (generic name; marketed as Hetronifly® in the EU) in Japan.
Serplulimab is a novel anti-PD-1 monoclonal antibody developed by Henlius and reported to have a unique binding mode distinct from existing anti-PD-1