Halda Therapeutics is a biotechnology company developing a novel class of cancer therapies called RIPTAC (Regulated Induced Proximity TArgeting Chimeras) therapeutics. Founded by Yale University professor Craig Crews, the company is based in New Haven, Connecticut. Halda's RIPTAC therapeutics work through a unique "hold and kill" mechanism, bringing together two proteins - a cancer-specific protein and a protein with essential function - resulting in the abrogation of the essential cell function and subsequent cancer cell death. This approach is designed to overcome common drug resistance mechanisms, a limitation of many current precision oncology medicines.
The company has built a robust pipeline of small molecule, anti-cancer drug candidates, with an initial focus on major solid tumor types. Halda's lead program targets prostate cancer by utilizing the androgen receptor (AR) as the tumor-specific protein to selectively deliver the RIPTAC therapeutic to tumors, along with an essential protein involved in transcriptional regulation. In preclinical studies, Halda's prostate cancer RIPTAC therapeutic demonstrated superior anti-tumor activity compared to enzalutamide, the standard of care agent, in an in vivo rodent model of enzalutamide-insensitive prostate cancer.
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