Pfizer Inc.’s recent determination to pay $43bn for antibody-drug conjugate (ADC) pioneer Seagen Inc., the largest pharmaceutical deal since AbbVie Inc.’s $63bn takeover of Allergan plc three years ago, stems in part from the remote chance that a biosimilar sponsor would ever be motivated – or indeed able – to replicate the groundbreaking medicines.
This is according to Pfizer’s CEO Albert Bourla, who spearheaded efforts to turn rumors into reality earlier this week with...






