Chugai abandons patent infringement lawsuit

11 April 2018

Chugai Pharmaceutical (TYO: 4519) announced today that it has decided to waive its claim in a patent infringement lawsuit against Nippon Kayaku (TYO: 4272).

Chugai, which is majority owned by Swiss pharma giant Roche (ROG: SIX), filed a lawsuit to the Tokyo District Court as of August 17, 2017, demanding the suspension of manufacturing and distribution of the biosimilar of anti-HER2 monoclonal antibody Herceptin (trastuzumab) Injection 60 and 150 against Nippon Kayaku, the applicant for marketing approval of the biosimilar of Herceptin Injection, citing such party's infringement of the application patents for the treatment of breast cancer owned by Genentech, a member of the Roche group.

Herceptin generates global sales of more than $7 billion last year, some $300 million of which were achieved in Japan.

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