Pfizer wraps up $43 billion buy of antibody-drug conjugate specialist

13 December 2023

New York-based pharma giant Pfizer (NYSE: PFE) will finally be able to complete its $43 billion acquisition of Seagen, having addressed all of the concerns of antitrust regulators.

The company said it expects the deal for the antibody-drug conjugate (ADC) developer to close tomorrow, after it agreed to donate the rights to Bavencio (avelumab) royalties to the American Association for Cancer Research (AACR).

Pfizer has already secured clearance from the European Commission, following a decision that was made in October.

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