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Abbisko Therapeutics enters potential $1.9 billion R&D deal with Eli Lilly

By Thomson Reuters Jun 23, 2026 | 8:32 PM

June 24 (Reuters) – U.S. drugmaker Eli Lilly will collaborate on experimental medicines with a unit of oncology-specialist Abbisko Cayman, ​with potential payments of up to ‌around $1.9 billion if milestones are met, the Chinese drugmaker said on Tuesday.

The deal marks another business win for Abbisko Cayman’s up-and-coming subsidiary Abbisko Therapeutics, which in ‌2022 ​entered into a collaboration ⁠agreement with Lilly to ⁠discover, develop and potentially commercialise a small-molecule therapeutic.

The latest deal with Lilly involves “medicines across multiple targets”, Abbisko Cayman said in ​a filing to the Hong Kong stock exchange.

Shares of the Shanghai-headquartered firm were ⁠up about 4% after ⁠the announcement.

Under the terms, Abbisko Therapeutics ​will conduct discovery and early development activities for ​drug programs.

Abbisko Therapeutics and Lilly aim ‌to “accelerate the advancement of innovative therapeutic programs and bring new treatment options to patients worldwide,” Abbisko Cayman said.

Abbisko Therapeutics declined to ⁠comment to Reuters on the types of diseases covered by the collaboration. Lilly did not immediately respond ⁠to a ‌request for comment.

Abbisko Therapeutics is ⁠eligible to receive an upfront ​payment ‌for an undisclosed amount and up ​to about $1.9 ⁠billion in additional payments tied to development, regulatory and commercial-related milestones.

(Reporting by Andrew Silver in Shanghai and additional reporting by Nichiket Sunil in Bengaluru; Editing by Subhranshu Sahu and ​Kate Mayberry)