Pharma BD Deal Intelligence

Merck & Co. Inc. / Moderna, Inc.

2022 · Co-Development · $250M · Complete

CALLED IT — OFF BY 10
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The coverage arc

Oct 12, 2022 BioPharma Dive Bullish

Merck will pay Moderna $250 million to opt into a co-development agreement for mRNA-4157, an experimental personalized cancer vaccine, the companies announced…

Oct 12, 2022 STAT News Bullish

Merck has exercised an option to jointly develop and commercialize Moderna's personalized cancer vaccine mRNA-4157, paying $250 million to enter a 50-50 cost…

Jun 01, 2026 Merck Bullish

Moderna and Merck presented 5-year KEYNOTE-942 data for intismeran autogene (mRNA-4157/V940) + Keytruda in high-risk resected stage III/IV melanoma at the…

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Merck and Moderna expanded their existing cancer vaccine collaboration to jointly develop and commercialize mRNA-4157/V940 — now known by its international nonproprietary name intismeran autogene — an individualized neoantigen therapy (INT), in combination with Keytruda (pembrolizumab) for the adjuvant treatment of high-risk resected melanoma and other tumor types. Merck paid $250M upfront to exercise its option for a worldwide 50/50 cost and profit share. The pivotal evidence base is the Phase 2b KEYNOTE-942 trial: initial data showed a 44% reduction in recurrence or death versus Keytruda monotherapy, and five-year follow-up data reported in January 2026 (and presented at the 2026 ASCO Annual Meeting) demonstrated a sustained 49% reduction in the risk of recurrence or death (HR 0.510; 95% CI 0.294-0.887). The pivotal Phase 3 INTerpath-001 melanoma trial is fully enrolled, and Phase 3 NSCLC studies (INTerpath-002 and INTerpath-009) remain in enrollment, with key confirmatory readouts anticipated in 2027.

Key facts

Related deals — scored

DealYearValueOutcome
Merck & Co. Inc. / Moderna, Inc. (this deal)2022$250M86
Merck & Co. Inc. / Acceleron Pharma Inc.2021$11.5B90
Merck & Co. Inc. / Peloton Therapeutics Inc.2019$2.2B88
Merck & Co. Inc. / AstraZeneca PLC2017$8.5B87
Merck & Co. Inc. / Moderna, Inc.2016$250M84
Merck & Co. Inc. / Eisai Co., Ltd.2018$5.8B83
Merck & Co. Inc. / Prometheus Biosciences Inc.2023$10.8B77

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