Intriguing data in pancreatic cancer didn’t do much to help shares of South San Francisco-based Cytomx Therapeutics Inc. (NASDAQ:CTMX), which closed May 9 at $2.04, down $2.15, or 51%, as the company made known initial findings from the ongoing CX-904 phase Ia dose-escalation study, showing a favorable safety profile and confirmed anticancer activity.
Scientists at Regeneron Pharmaceuticals Inc. have found a new way to permanently stop allergy through a combination of therapies that prevents the production of antibodies in secondary lymphoid organs and in bone marrow. The approach was tested in vivo in cynomolgus monkeys and in a mouse model.
Researchers from Chugai Pharmaceutical Co. Ltd. presented preclinical data of SAIL-66, a trispecific antibody targeting Claudin-6 (CLDN6), CD137 (4-1BB) and CD3, for cancer immunotherapy.
Osimertinib is a third-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor with documented efficacy in non-small-cell lung cancer. However, in most cases, patients develop resistance to this treatment by mechanisms that are not clear in half of the cases. Researchers from Shanghai Pulmonary Hospital presented data on BC-3448, a bispecific antibody targeting EGFR and CD3 aimed to recruit T cells to tumors with high EGFR expression leading to T cell-driven tumor cell killing. The compound presents a stronger binding affinity for EGFR than for CD3 to avoid the development of cytokine release syndrome, which is a safety issue common in CD3-based bispecific antibodies.
Alzheimer’s disease (AD) has a new candidate for its treatment. Nasal anti-CD3 monoclonal antibody (MAb) reduced microglia activation in the brain of mice without its effect being dependent on the β-amyloid (Aβ) deposits characteristic of this neurodegenerative disorder. “We have done many basic studies in the laboratory on microglia. Microglia activation occurs in many neurologic diseases. One of them is multiple sclerosis (MS). And it also occurs in AD,” senior author Howard Weiner told BioWorld.
The accelerated clearance won by Johnson & Johnson (J&J) from the U.S. FDA for Talvey (talquetamab-tgvs) for relapsed or refractory multiple myeloma (r/r MM) in adults brings to the market the bispecific antibody that takes aim at G protein-coupled receptor class C group 5 member D, a target of interest to other developers as well.
Ichnos Sciences Inc.’s first-in-class T-cell engaging trispecific antibody, ISB-2001, has been granted orphan drug designation by the FDA for the treatment of multiple myeloma.
