Roche ‘Positive Results’ with Breast Cancer Drug
Roche says it will discuss with FDA and other health authorities “positive results” from the Phase 3 INAVO120 study of inavolisib in combination with palbociclib (Pfizer’s Ibrance) and fulvestrant (AstraZeneca’s Faslodex) as a potential first-line treatment option for people with PIK3CA-mutated, hormone receptor (HR)-positive, HER2-negative, endocrine-resistant, locally advanced or metastatic breast cancer. “The study met its primary endpoint of progression-free survival (PFS), demonstrating a statistically significant and clinically meaningful improvement compared to palbociclib and fulvestrant alone,” the company says, adding that overall survival data were “immature” at this time, but a clear positive trend was observed.
Inavolisib is described as having high in vitro potency and selectivity for PI3Kα inhibition and the ability to specifically trigger the breakdown of mutant PI3Kα protein. “The inavolisib combination was well tolerated and adverse events were consistent with the known safety profiles of the individual study treatments, with no new safety signals observed,” Roche adds.