Pharma BD Deal Intelligence

Eli Lilly and Company / Mablink Bioscience SAS

2023 · Acquisition/Merger · $250M · Complete

Outcome grade pending — assessed 5 years post-close.

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The coverage arc

Oct 18, 2023 BioPharma Dive Bullish

Eli Lilly plans to acquire French antibody-drug conjugate developer Mablink Bioscience to bolster its oncology pipeline with a next-generation linker platform.…

Oct 18, 2023 GEN - Genetic Engineering & Biotechnology News Bullish

Eli Lilly and Company has announced an agreement to acquire French biotech Mablink Bioscience, which specializes in next-generation antibody-drug conjugates…

Jan 20, 2026 Eli Lilly / PR Newswire Bullish

FDA granted Breakthrough Therapy designation to sofetabart mipitecan (LY4170156, originated from Lilly's Mablink acquisition) for platinum-resistant epithelial…

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Lilly acquired French ADC specialist Mablink Bioscience, gaining the PSARLink hydrophilic polysarcosine linker technology and lead candidate MB-1707 (a.k.a. MBK-103), an FRalpha-targeted exatecan ADC positioned as a next-generation rival to AbbVie's Elahere. Announced October 18, 2023; closed December 1, 2023. Deal terms undisclosed; press estimates ~$250M including milestones. Post-close the asset was renamed LY4170156 and received the INN sofetabart mipitecan. It advanced into a Phase 1a/b study (NCT06400472), with first clinical data at ASCO 2025 (June) showing a preliminary ORR of ~55% at the 4 mg/kg Q3W dose in platinum-resistant ovarian cancer, including responses in patients who had progressed on prior mirvetuximab soravtansine; updated data followed at ESMO 2025 (October). On January 20, 2026 the FDA granted sofetabart mipitecan Breakthrough Therapy Designation for platinum-resistant epithelial ovarian, fallopian tube, or primary peritoneal cancer in patients who received prior bevacizumab and mirvetuximab soravtansine, and the asset advanced into the Phase 3 FRAmework-01 program (NCT07213804). The original bolt-on thesis has been strongly validated.

Key facts

Related deals — scored

DealYearValueOutcome
Eli Lilly and Company / Mablink Bioscience SAS (this deal)2023$250M
Eli Lilly and Company / Boehringer Ingelheim GmbH2011$444M89
Eli Lilly and Company / Loxo Oncology, Inc.2019$8.0B88
Eli Lilly and Company / Applied Molecular Evolution Inc.2003$400M88
Eli Lilly and Company / ICOS Corporation2006$2.3B87
Eli Lilly and Company / Novartis Animal Health2014$5.4B70
Eli Lilly and Company / Incyte Corporation2009$755M69

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