Giredestrant

Also known as GDC-9545 and RG6171.

Latest news on giredestrant

18 October 2026
Genentech unveils late‑stage oncology data at ESMO 2026

Late‑stage results show divarasib superiority in KRAS G12C NSCLC, giredestrant preserves quality of life while improving efficacy, and Tam‑Peli shows robust activity in nasopharyngeal carcinoma.

30 September 2026
Genentech: Giredestrant + everolimus improves PFS in ER‑positive advanced breast cancer (evERA Phase III, NEJM)

evERA Phase III: giredestrant+everolimus doubled median PFS in ESR1‑mutated patients and improved ITT PFS; OS immature; manageable safety; FDA review dates set for Nov 30 and Dec 18, 2026.

2 June 2026
Roche: FDA accepts priority‑review NDA for giredestrant in ER‑positive early‑stage breast cancer

FDA accepted priority NDA for oral SERD giredestrant as adjuvant in ER‑positive, HER2‑negative stage I–III breast cancer after phase III lidERA showed 30% iDFS risk reduction; PDUFA 30 Nov 2026.

1 June 2026
Genentech: FDA accepts NDA for giredestrant after positive Phase III adjuvant results in early ER‑positive breast cancer

lidERA Phase III: giredestrant reduced invasive recurrence/death by 30% (HR 0.70); 3‑yr iDFS 92.4% vs 89.6%. Priority review; PDUFA Nov 30, 2026; well tolerated in >4,100 pts.