Researchers from Blueprint Medicines Corp. presented data from a study that aimed to assess the effects of combining cyclin-dependent kinase 2 (CDK2) inhibitor BLU-222 with CDK4/6 inhibitors, such as palbociclib or ribociclib, to overcome CDK4/6 inhibitor resistance in HR-positive/HER2-negative breast cancer.

The inhibition of cyclin-dependent kinase 4 (CDK4) and CDK6 is a useful strategy to treat hormone receptor (HR)+/HER2+ breast cancer, but patients may develop resistance through different mechanisms. As reported at the recent San Antonio Breast Cancer Symposium, researchers from Biotheryx Inc. have synthesized a new CDK4/6 degrader – BTX-9341 – to address the problem of therapeutic resistance in breast cancer.

Researchers from Medical University of South Carolina aimed to evaluate the potential of secreted frizzled-related protein 2 (SFRP2) as a promising novel target for breast cancer using a newly developed humanized monoclonal antibody to SFRP2 (hSFRP2 MAb) in models of this disease.