Rare diseases
Despite substantial variability in the presented data and no well-controlled trial, the FDA advisory committee voted in favor of Stealth BioTherapeutics’ Barth syndrome therapy elamipretide, citing the urgent unmet need.
The pediatric patients, with a rare neurodegenerative disease, were treated with bluebird bio’s Skysona to slow the progression of neurologic dysfunction. Six patients developed myelodysplastic syndrome and one patient developed acute myeloid leukemia.
The FDA’s reviewers pointed out that Stealth’s elamipretide missed its primary efficacy endpoints in the main study used to establish its effectiveness.
The rejection is related to the timing of the FDA’s reinspection of Zealand’s third-party manufacturer, which previously had deficiencies.
With Monday’s data from SAPPHIRE, Scholar Rock is building toward regulatory submissions for apitegromab in spinal muscular atrophy in the first quarter of 2025.
Under the deal announced Friday, the Italian pharma will make an upfront payment of $825 million to Sanofi for global rights to a biologic for the treatment of cold agglutinin disease, with milestone payments of up to $250 million.
Bristol Myers Squibb wins approval for the first novel schizophrenia drug in decades; Pfizer pulls Oxbryta from the market; new IVF and abortion laws could derail women’s health research; Roche touts CDK inhibitor deal and obesity pipeline and BioSpace heads to Meeting on the Mesa.
One upcoming decision—on a perioperative PD-1 regimen for lung cancer—comes as the FDA considers an overhaul of trial designs in this treatment setting.
Pfizer’s sudden market withdrawal of sickle cell therapy Oxbryta, which some analysts predicted would reach $750 million in sales by the end of the decade, has left patients and healthcare providers with few options, while investors question the pharma giant’s dealmaking prowess.
Based on new safety signals, Pfizer on Wednesday announced that Oxbryta’s overall benefit “no longer outweighs the risk” in patients with sickle cell disease. Guggenheim Securities analysts said the setback increases investor frustrations with the company’s business development track record.
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