Roche’s Giredestrant Shows Promise in Breast Cancer

Share

Roche says its investigational breast cancer drug giredestrant met key goals in a pivotal Phase 3 study, showing significant benefits for patients with advanced estrogen receptor (ER)-positive disease. The evERA trial evaluated giredestrant in combination with everolimus against standard-of-care endocrine therapy plus everolimus in patients with ER-positive, HER2-negative locally advanced or metastatic breast cancer whose disease had progressed following treatment with a CDK4/6 inhibitor and endocrine therapy. ER-positive breast cancer represents roughly 70% of all breast cancer cases, the company says.

According to Roche, the trial achieved both of its co-primary endpoints — demonstrating a “statistically significant and clinically meaningful” improvement in progression-free survival in the overall patient group as well as in those with ESR1-mutated tumors. Early data on overall survival showed a positive trend but remain immature, it adds.

The all-oral drug combination was generally well tolerated, with side effects consistent with known safety profiles of the individual medicines, and no new safety concerns identified, Roche says.

Roche notes that evERA is the first Phase 3 head-to-head trial of a selective estrogen receptor degrader-containing regimen against a standard therapy combination to demonstrate positive results. The company plans to present detailed findings at an upcoming medical conference and submit the data to health regulators worldwide.

Read more