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.
Metagenomi Inc. has reported data from an ongoing preclinical study designed to provide evidence supporting the potential durability and safety of the company’s hemophilia A gene editing investigational therapy, MGX-001.
Shwachman-Diamond syndrome is an inherited bone marrow failure syndrome characterized by exocrine pancreatic insufficiency, cytopenia, growth restriction and skeletal abnormalities, and for which primary treatment is allogeneic hematopoietic stem cell transplantation, which is associated with significant toxicity.
Recent studies have shown that up-regulation of peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α) was able to induce fetal hemoglobin synthesis in human primary erythroblasts.
Oxford University Innovations Ltd. has divulged Egl nine homolog 1 (EGLN1; HPH-2; PHD2) inhibitors reported to be useful for the treatment of anemia, ischemia, cardiovascular disorders, inflammatory disorders, irritable bowel syndrome, chronic kidney disease, Parkinson’s disease and Alzheimer’s disease, among others.
RNA Therapeutics Inc. has received a written response from the FDA to its pre-IND application questions regarding the development of its lead asset, RNAT-89 (BLA-761423), an mRNA LNP formulation to express darbepoetin.
A recent study in PLoS One by researchers from Cincinnati Children’s Hospital Medical Center has evaluated the preclinical long-term safety of human A gamma-globin gene-carrying GbGM LV in wild-type mice.
Scientists at the Novartis Institutes for Biomedical Research (NIBR) in Cambridge have discovered a small molecule that could be used as a therapy for sickle cell disease (SCD). The molecular glue oral degraders of the WIZ transcription factor called dWIZ-1 and dWIZ-2, bind to cereblon (CRBN) and WIZ, marking it for degradation and inducing the expression of fetal hemoglobin (HbF).
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.
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