Merck licenses SciBrunch’s preclinical KRAS G12D drug in deal worth up to $2.13B

Merck has secured exclusive worldwide rights to SciBrunch Therapeutics’ SPR2015, an investigational oral drug aimed at the KRAS G12D mutation.

The deal includes $400 million upfront, with potential development and commercial milestones bringing its total value to $2.13 billion. The transaction has closed.

SPR2015 is still preclinical—not yet tested in people. Merck and SciBrunch report encouraging laboratory activity in KRAS G12D-mutant cancer cells, but its safety and effectiveness in patients remain unknown.

The move expands Merck’s precision-oncology pipeline. KRAS G12D is a cancer-driving mutation found in tumors including pancreatic, colorectal and lung cancers.

Merck expects to record a $400 million pretax charge, about $0.13 per share, in its third-quarter 2026 results.

Sources:

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Merck signs exclusive global license with SciBrunch for ...

News releases - Merck.com

Merck & Co., Inc., Rahway, N.J., USA Licenses KRAS G12D Drug, Books $400M Charge

Merck Enters into Exclusive Global License Agreement with SciBrunch Therapeutics for SPR2015, an Investigational Oral KRAS G12D (ON) Inhibitor (2026-09-28)

Merck Licenses SciBrunch's KRAS Inhibitor for Up to $2.13 Billion

Merck (MRK) Secures Exclusive Global License for SPR2015, an Ora

Merck Signs $2.13 Bln License Deal With SciBrunch Therapeutics For KRAS G12D Inhibitor