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Gilead agrees to acquire PepStar oral IL-23R program for $1.275 billion upfront

Company / institutional announcement · Gilead Sciences

Source published: 2026-10-22

Site published: 2026-11-03 · Updated: 2026-11-03

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Findings and limitations Industry implications Related developments

What changed

Gilead agreed to acquire worldwide rights to PepStar’s oral IL-23R inhibitor program, including HCXT-2001, for $1.275 billion cash payable at closing. HCXT-2001 is a Phase 1 oral macrocyclic peptide with an extended half-life. Closing was expected in the fourth quarter of 2026, subject to conditions; the candidate’s safety and efficacy remain unestablished.

Why it may matter

Signals strategic value in oral immunology macrocycles while requiring distinctions among signing, closing, early clinical development, and validated products.

The interpretation above is analysis, not a conclusion attributed to the original source.

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Oral cyclic peptides

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