New pill shows promise for Hard-to-Treat breast cancer in early trial
Disease control
Recruiting now
This study tests a new daily pill called TOS-358 in women with a specific type of advanced breast cancer (HR+ HER2-) that has a PIK3CA gene change. The main goals are to find the best dose and see if it is safe when taken alone or with standard treatments. About 241 adults will t…
Phase: PHASE1 • Sponsor: Totus Medicines • Aim: Disease control
Last updated May 15, 2026 11:54 UTC