Pfizer Upbeat After Bagging Besponsa Approval in US

It is the first CD22-directed antibody-drug conjugate indicated for relapsed or refractory B-cell precursor acute lymphoblastic leukemia, though sales potential is modest.

FDA Approved typed words on a vintage typewriter
Pfizer's Besponsa is new targeted treatment for ALL • Source: Shutterstock

Regulators in the US have followed their counterparts in Europe by giving the green light to Pfizer Inc.'s rare blood cancer drug Besponsa, although the approval comes with a boxed warning which could dampen the targeted therapy's sales potential.

Besponsa (inotuzumab ozogamicin) has been approved by the US Food and Drug Administration as a treatment for relapsed or refractory...

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