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Summit Therapeutics Signs Agreement to Sell Phase III Asset Ridinilazole to Biossil, Inc.

$SMMTPress releaseJul 14, 2026, 7:00 AM ETRead the release

Summit Therapeutics sold its Phase III asset ridinilazole to Biossil, Inc. for $500,000 upfront and potential milestones of up to $104.5 million. The transaction allows Summit to prioritize its core oncology strategy and the development of ivonescimab, exiting a program that previously failed to meet its primary endpoint.

Key figures

Drug Name
Ridinilazole
Phase Of Trial
Phase III
Upfront payment usd
500000
Potential milestones usd
104500000

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