A&O Shearman Advised Ipsen On The Acquisition Of Imcheck Therapeutics
A&O Shearman advised Ipsen on the acquisition of ImCheck Therapeutics
A&O Shearman advised Ipsen, a global biopharmaceutical company, on the acquisition of ImCheck Therapeutics, a private French biotechnology company pioneering next-generation immuno-oncology therapies, allowing Ipsen to expand its leadership in oncology and strengthen its pipeline, for a total potential consideration up to EUR1 billion.
This acquisition is focused on the clinical-stage program ICT01 in acute myeloid leukemia (AML), targeting patients who are ineligible for intensive chemotherapy or targeted treatments. ICT01 is a first-in-class monoclonal antibody whose data from an ongoing trial showed a high treatment response, which could make it a new standard of care for acute myeloid leukemia, an aggressive blood cancer affecting older adults.
The transaction is expected to close by the end of Q1 2026, subject to fulfillment of customary closing conditions, including the required regulatory and governmental approvals under French and U.S. regulations.
Marc Castagnède, partner at A&O Shearman, said, “This transaction clearly demonstrates our ability to support clients in executing complex, strategic deals in highly specialized sectors such as life sciences. We are proud to have advised Ipsen on this landmark acquisition, which sits at the heart of biotech innovation and therapeutic advancement.”
The A&O Shearman team led by Marc Castagnède (Partner), with Antoine Messent (Senior Associate), and Fatima Ahamada (Associate).
Other members of the Paris team involved in the transaction include Olivier Picquerey (Partner), and Antoine Tantaro (Senior Associate), Laëtitia Bénard (Partners), and Charles Tuffreau (Partners), Manon Perret (Associate), and Marianne Delassaussé (Consultant) Clémence d’Almeida (Senior Associate) ,Luc Lamblin (Counsel), and Charles-Hugo Lerebour (Associate), Laurie-Anne Ancenys (Partner), and Thomas Feigean (Associate), and Charles del Valle (Partner).
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