Pharma BD Deal Intelligence

Sanofi SA / Dren Bio, Inc.

2025 · Co-Development · $1.8B · Complete

Outcome grade pending — assessed 5 years post-close.

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The coverage arc

Dec 15, 2025 BioPharma Dive Bullish

Sanofi wagers $600M on a dual-targeting antibody drug for autoimmune disease. The article documents the prior $600M Dren Bio acquisition of DR-0201 deep B-cell…

Dec 15, 2025 Endpoints News Bullish

Sanofi and Dren Bio are expanding their B-cell depletion collaboration with a new $1.8 billion biobucks deal focused on a next-generation successor to…

Jan 08, 2026 BioSpace Bullish

Sanofi Keeps Immuno Deals Coming With Kali Bet Worth Potential $1B+. The article frames the Kali deal as the latest in a string of Sanofi immunology pacts that…

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Sanofi expanded collaboration with Dren Bio for discovery and development of next-generation B-cell depletion therapy. $100M upfront and up to $1.7B in development/regulatory/commercial milestones. Dren has option for 40% co-funding/50% US profit share arrangement. Builds on March 2025 DR-0201 acquisition.

Key facts

Related deals — scored

DealYearValueOutcome
Sanofi SA / Dren Bio, Inc. (this deal)2025$1.8B
Sanofi SA / Regeneron Pharmaceuticals, Inc.2007$1.0B97
Sanofi SA / Synthelabo S.A.1998$11.0B84
Sanofi SA / Genzyme Corporation2011$20.1B84
Sanofi SA / Amunix Pharmaceuticals Inc.2021$1.2B76
Sanofi SA / Genzyme Corporation2010$18.5B75
Sanofi SA / Translate Bio Inc.2018$805M73

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