ADEL signs $1.04 billion Alzheimer’s licensing deal with Sanofi

16 December 2025

In what was a busy day for Sanofi (Euronext: SAN), the French pharma major has entered into a licensing and development collaboration with South Korea’s ADEL Inc for the development and commercialization of ADEL-Y01, a potential first-in-class antibody therapy for Alzheimer's disease and related backup compounds.

The total potential value of the agreement is up to $1.04 billion. ADEL will receive a non-refundable upfront payment of $80 million, and is eligible to receive additional payments contingent upon the achievement of specified development and commercial milestones. Additionally, ADEL is entitled to receive tiered royalties on net sales ranging up to double-digit percentages.

Also today, Sanofi announced an expanded deal with USA-based Dren Bio on autoimmune diseases.

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