BUSINESS

Zenyaku, Chugai to End Rituxan Co-Promotion in September

April 10, 2026
Zenyaku Kogyo and Chugai Pharmaceutical said on April 9 that they will discontinue their co-promotion arrangement in Japan for the anti-CD20 monoclonal antibody Rituxan (rituximab) on September 3.Chugai’s sales of Rituxan will end once its remaining inventory is sold out.…

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