The risk and benefit of Pfizer Inc.’s oral sickle cell disease drug Oxbryta (voxelotor) has flipped, prompted by what the company called new clinical data indicating “an imbalance in vaso-occlusive crises and fatal events” that need more study. Based on an EMA recommendation, Pfizer said it is voluntarily recalling all lots of Oxbryta from wherever it’s approved worldwide. Pfizer also is shuttering its Oxbryta clinical studies and expanded access programs.
Shares of Fulcrum Therapeutics Inc. shot up 38.5% on Aug. 22 following news that the U.S. FDA had lifted the clinical hold on the company’s phase Ib sickle cell disease candidate, FTX-6058.
Pfizer Inc. plans to pay about $5.8 billion – total equity value – for Global Blood Therapeutics Inc. (GBT) and its oral sickle cell disease (SCD) treatment Oxbryta (voxelotor). The company reported the enterprise value as $5.4 billion, which includes debt and net cash. If completed, the GBT buy would be the second largest M&A in 2022 after Pfizer’s $6.7 billion buyout of Arena Pharmaceuticals Inc. Oxbryta, which netted about $195 million in sales in 2021, gained U.S. FDA approval in November 2019 for the treatment of SCD in adults and pediatric patients ages 12 and up. The FDA later expanded Oxbryta’s approved uses to SCD patients 4 years of age and older in December 2021.
Less than two weeks after giving the go-ahead to Novartis AG for Adakveo (crizanlizumab) to reduce the frequency of vaso-occlusive crises (VOCs) in adult and pediatric patients ages 16 and older with sickle cell disease (SCD), the FDA cleared – well ahead of its Feb. 26, 2020, PDUFA date – Oxbryta (voxelotor), from Global Blood Therapeutics Inc. (GBT), for SCD in adults and pediatric patients ages 12 and up.
