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.
Actinium Pharmaceuticals Inc. has received FDA clearance of an IND application to study Iomab-ACT for targeted conditioning prior to a bone marrow transplant (BMT) in patients with sickle cell disease.
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).
Researchers in Japan have discovered that a phage-derived enzyme called endolysin, which targets highly resistant biofilm-forming bacteria, could help restore the gut microbiota to mitigate acute graft-vs.-host disease. Acute graft-vs.-host disease (aGVHD) is a common complication for patients who undergo allogeneic hematopoietic cell transplantation (allo-HCT). Recent studies have highlighted the significant role of the microbiome in aGVHD, with dysbiosis contributing to its pathogenesis.
Von Willebrand factor (vWF) plays a crucial role in hemostasis, and elevated levels are associated with risk of thrombosis. Gain-of-function mutations in the C-domain of vWF are linked to an increased risk of thrombosis. Previous work has shown that disrupting cysteine-rich C-domain in vWF led to reduced platelet recruitment in a shear-dependent fashion, making it a promising target for pharmacology. Apollo Therapeutics Ltd. has presented data on antibodies targeting the C-domain of vWF, including AP-21 as antithrombotics.
Beijing Gensciences Inc. has developed a FVIIIa-mimetic bispecific antibody named SS-315 for the treatment of hemophilia A. SS-315 was developed by targeting FX with its upper Fab arms and FIXa with its down-side scFv arms, respectively; the hemostatic potential of SS-315 was investigated in vitro and in vivo.
Glycoprotein VI (GPVI) is a platelet collagen receptor involved in platelet activation and an emerging target for treating thrombotic disorders such as ischemic stroke. Data have been presented by University of Würzburg scientists regarding a humanized anti-GPVI Fab antibody, EMA-601, with unprecedented potency in vitro and in vivo.
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.
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