Purple Biotech Acquires Immunorizon, Tri-Specific Antibodies for Cancer

 Purple Biotech Ltd. (NASDAQ/TASE: PPBT), a clinical-stage company developing first-in-class, effective and durable therapies that harness the power of the tumor microenvironment to overcome tumor immune evasion and drug resistance, today announced that it has entered into an agreement for the acquisition of Immunorizon Ltd., a private company developing potential multi-specific T and NK cell engager oncology therapies that selectively activate the immune response within the tumor microenvironment. The acquisition will provide Purple Biotech with an expanded portfolio of investigational tri-specific antibody compounds that target multiple antigens and offer the potential to further expand to additional targets.

Immunorizon’s lead asset is a conditionally-activated tri-specific antibody that engages both T cells and NK cells to mount a strong, localized immune response within the tumor microenvironment. The third arm of the lead compound specifically targets the Tumor Associated Antigen (TAA) 5T4, that is expressed in a variety of solid tumors and is correlated with advanced disease, increased invasiveness and poor clinical outcomes. 5T4 is a well-known target that has been validated by multiple pre-clinical and clinical programs. The drug candidates Purple Biotech is acquiring are differentiated from other multi-specific cell therapies targeting 5T4+ tumors by its cleavable capping technology, which confines the compound’s therapeutic activity to the local tumor microenvironment, and thereby potentially increases the anticipated therapeutic window in patients.  The acquisition will also provide Purple Biotech with additional preclinical assets targeting other TAAs through this technology platform.

https://www.biospace.com/article/releases/purple-biotech-expands-pipeline-of-first-in-class-therapeutics-with-acquisition-of-immunorizon-and-its-portfolio-of-tri-specific-antibodies-for-the-treatment-of-cancer-/