Gilead Sciences, Inc. (Nasdaq: GILD) today announced that it has entered into a definitive agreement to acquire an oral IL-23R inhibitor program, including lead asset HCXT-2001, from PepStar Therapeutics Limited, a privately held, clinical-stage biotechnology company.

Under the terms of the agreement, Gilead will acquire an oral IL-23R inhibitor program, including lead asset HCXT-2001, from PepStar for $1.275 billion in upfront cash consideration, subject to customary adjustments, which is payable at closing. Closing of the transaction is subject to certain customary conditions. The transaction is expected to close in the fourth quarter of 2026.

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