Although HER2-targeted therapies have become a mainstay in cancer treatment, some tumors evade them by stripping away the portion of the HER2 receptor that most therapies are built to recognize and bind to, but Taiwan’s AP Biosciences Inc. is developing bispecific antibody AP-402 to address treatment-resistant HER2+ cancers.
Pfizer Inc. is paying $1.25 billion up front and up to $4.8 billion in milestone payments to gain global, ex-China rights to SSGJ-707, a PD-1/VEGF bispecific antibody from 3Sbio Inc. that recently won China clearance for a phase III study in lung cancer as a potential first-line monotherapy. Announced after U.S. market hours May 19, the exclusive agreement for SSGJ-707 spells up to $6.15 billion combined for Shenyang, China-based 3Sbio, along with separate tiered double-digit royalty payments on sales of SSGJ-707, if approved.
Current anticancer approaches, such as antibody or CAR T-cell therapies, rely on targeting tumor-associated antigens rather than tumor-specific antigens, with the consequent on-target, off-tumor effects.
Aptevo Therapeutics Inc. is advancing APVO-711, its bispecific antibody targeting PD-L1 x CD40 that combines checkpoint inhibition with immune activation in a single molecule.
The use of mimicking antibodies that activate death receptors (DRs) to selectively induce cell death in cancer cells has shown limited clinical success so far, primarily due to suboptimal efficacy and safety concerns, particularly hepatotoxicity. Emerging strategies to enhance efficacy include the development of bispecific antibodies that simultaneously target DRs and tumor-specific antigens.
Abtherx Inc. has signed a technology license agreement with Rondo Therapeutics with the aim of accelerating Rondo’s pipeline of bispecific antibodies. Rondo aims to advance the field of immuno-oncology, with a focus on treating solid tumors that fail to respond to current therapies.
Veraxa Biotech AG is merging with special purpose acquisition company (SPAC) Voyager Acquisition Corp. to become a publicly traded company that will develop treatments for solid tumors.
Aclaris Therapeutics Inc. has gained IND clearance from the FDA for ATI-052, a bispecific anti-thymic stromal lymphopoietin (TSLP)/interleukin-4 receptor (IL-4R) monoclonal antibody being developed to treat certain immuno-inflammatory diseases. A phase Ia/Ib trial, including a proof-of-concept portion in an undisclosed indication, will begin in the current quarter.
Earendil Labs will collaborate with Sanofi SA in a $1.8 billion license deal. Earendil, which specializes in artificial intelligence-based R&D for biologics, is getting $125 million up front and $50 million as a near-term payment. In return, Sanofi gets the exclusive global rights to the bispecific antibodies HXN-1002 and HXN-1003.
ABL Bio Inc. announced April 7 that it sealed a potential £2.075 billion (US$2.65 billion) license deal with GSK plc, granting GSK global rights to use ABL’s blood-brain barrier (BBB) penetrating bispecific antibody platform, Grabody-B, to develop multiple programs in the neurodegenerative disease arena. Under the terms signed April 5, ABL agreed to transfer Grabody-B-related technology and know-how to GSK, upon which GSK will assume responsibility for preclinical and clinical development, manufacturing and commercialization.
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