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.
For once, the EMA appears to have pipped the U.S. FDA to the post, with Pfizer Inc.’s hemophilia A and B therapy Hympavzi (marstacimab) recommended for approval in Europe on Sept. 20, while the U.S. PDUFA date is set for the fourth quarter of the year.
To be successful, CAR T-cells need a balance between being effective and overkill. Researchers from the University of Pennsylvania and Vittoria Biotherapeutics Inc. have eliminated the CD5 signaling pathway of their CAR Ts to prevent the immunosuppressive brake effect. In return, this improved their proliferation and antitumor activity in T cell lymphomas.
Samsung Bioepis Co. Ltd., of Incheon, South Korea, gained U.S. FDA approval of Epysqli (eculizumab-aagh) as the second biosimilar product to Alexion Pharmaceuticals Inc.’s Soliris (eculizumab) to treat two rare diseases. The regulatory clearance July 22 grants use of Epysqli to treat paroxysmal nocturnal hemoglobinuria and atypical hemolytic uremic syndrome – two rare hematologic- and kidney-related disorders known to affect about 50,000 and 5,000 patients in the U.S., respectively.
The U.S. Department of Health and Human Services’ Office of the Inspector General disclosed an advisory opinion finding Bluebird Bio Inc.’s fertility support program for a gene therapy treatment could run afoul of federal anti-kickback statutes. That follows a similar opinion against Vertex Pharmaceuticals Inc., and its fertility program associated with gene-editing therapy Casgevy (exagamglogene autotemcel). Vertex subsequently filed a lawsuit.
Orum Therapeutics Inc. struck a potential $945 million (₩1.3 trillion) deal with Vertex Pharmaceuticals Inc. to discover novel degrader antibody conjugates (DAC) as targeted conditioning agents for use with gene editing, including Vertex’s gene therapy, Casgevy (exagamglogene autotemcel).
CSL Behring’s expensive hemophilia B gene therapy is to be reimbursed by the U.K. National Health Service, after the company agreed to an outcomes-based payment scheme. The therapy, Hemgenix (etranacogene dezaparvovec), which has a U.K. list price of £2.6 million (US$3.3 million), was approved under a managed access scheme, in which data will be collected over five years to enable both the long-term effectiveness, and any adverse liver toxicity caused by the transgene, to be monitored.
Takeda Pharmaceutical Co. Ltd. is progressing mezagitamab to phase III trials after the CD38 monoclonal antibody showed rapid and sustained increases in platelet counts in patients with persistent or chronic primary immune thrombocytopenia (ITP) in a phase IIb trial.
Roche Holding AG’s Genentech Inc. unit received U.S. FDA approval on June 20 of Piasky (crovalimab) to treat adults and children 13 and older with paroxysmal nocturnal hemoglobinuria and a body weight of at least 40 kg (88 pounds).
Takeda Pharmaceutical Co. Ltd. has signed an option agreement to in-license Ascentage Pharma Group Inc.’s olverembatinib, an oral third-generation BCR-ABL tyrosine kinase inhibitor (TKI). If exercised, the option would allow Takeda to license exclusive global rights to develop and commercialize olverembatinib in all territories outside of mainland China, Hong Kong, Macau, Taiwan and Russia.
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