Pharma BD Deal Intelligence

ABL Bio Inc. / Sanofi S.A. (ABL301 license to Sanofi)

2022 · Licensing/Option · $1.1B · Complete

Outcome grade pending — assessed 5 years post-close.

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The coverage arc

Jan 12, 2022 Reuters Bullish

France's Sanofi said on Wednesday it had licensed an experimental Parkinson's disease drug from South Korea's ABL Bio in a deal worth up to $1.06 billion,…

Sep 19, 2024 Endpoints News Bullish

ABL Bio's lead Parkinson's asset ABL301, partnered with Sanofi, has shown a favorable safety profile and pharmacokinetic data consistent with successful…

Jan 31, 2026 FierceBiotech Bearish

Sanofi removed three candidates from its phase 1 pipeline, including SAR446159, a brain-shuttled antibody investigated for Parkinson's disease (ABL Bio's…

Source summaries from our enrichment pipeline; follow links for originals.

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In January 2022, South Korea's ABL Bio granted Sanofi an exclusive worldwide license to ABL301 (later Sanofi code SAR446159), a bispecific antibody pairing an anti-alpha-synuclein antibody with ABL Bio's Grabody-B (IGF1R) blood-brain-barrier shuttle for Parkinson's disease. ABL Bio received $75M upfront (paid February 25, 2022 following U.S. HSR antitrust clearance, making the agreement effective) and was eligible for up to $985M in development, regulatory and commercial milestones plus royalties; ABL led preclinical work and the Phase 1 study while Sanofi took global development. ABL Bio booked a $20M GLP-tox milestone in September 2022 and had received roughly $125M in total payments by mid-2025. The Phase 1 trial (NCT05756920, December 2022-April 2025, 91 healthy adults) completed with a clean safety/tolerability profile, announced September 1, 2025, after which Sanofi assumed trial sponsorship. In January 2026, however, Sanofi removed SAR446159/ABL301 from its Phase 1 pipeline, deprioritizing the program despite the positive Phase 1 safety readout. The license economics already paid to ABL Bio are unaffected, but Sanofi's discontinuation ends the asset's forward development under this agreement.

Key facts

Related deals — scored

DealYearValueOutcome
ABL Bio Inc. / Sanofi S.A. (ABL301 license to Sanofi) (this deal)2022$1.1B
Novartis AG / Advanced Accelerator Applications S.A.2017$3.9B98
Allergan plc / Merck & Co., Inc. (CGRP receptor antagonist program)2015$250M91
Cephalon Inc. / Laboratoire L. Lafon S.A. (Group Lafon)2000$450M89
Teva Pharmaceutical Industries Ltd. / Auspex Pharmaceuticals2015$3.5B86
Teva Pharmaceutical Industries Ltd. / Biogal Pharmaceutical199582
Novartis AG / PTC Therapeutics Inc.2024$2.9B80

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