Totus Medicines

Totus Medicines is a clinical-stage precision medicines company in Emeryville, California, building covalent small-molecule drugs against historically undruggable targets. Its AI-powered OmniDEL platform screens billions of DNA-encoded covalent candidates against thousands of targets inside living cells, surfacing molecules that older methods miss. Its lead program, TOS-358, is the first and only covalent PI3Ka inhibitor in clinical development, showing class-leading tolerability and strong disease control in breast, endometrial, and head & neck cancers.