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FDA accepts New Drug Application for Roche’s giredestrant in ESR1-mutated, ER-positive advanced breast cancer

General • February 20, 2026

FDA accepts New Drug Application for Roche’s giredestrant in ESR1-mutated, ER-positive advanced breast cancer is drawing significant interest across the industry.

Filing acceptance based on phase III data showing giredestrant plus everolimus reduced the risk of disease progression or death by 44% and 62% in ITT and ESR1-mutated populations, respectively, versus standard-of-care endocrine therapy plus everolimus1Strength of evERA data demonstrate potential for giredestrant combination to help address resistance to standard-of-care therapies, and could be the first and only oral SERD combination approved in the post-CDK4/6 inhibitor setting1The FDA has set a Prescription Drug User Fee Act date of 18 December Basel, 20 February 2026 - Roche (SIX: RO, ROG; OTCQX: RHHBY) announced today that the United States (U.S.) Food and Drug Administration (FDA) has accepted the company’s New Drug Application for giredestrant, an investigational oral therapy,  in combination with everolimus for the treatment of adult patients with oestrogen receptor (ER)-positive, human epidermal growth factor receptor 2-negative, ESR1-mutated locally advanced or metastatic breast cancer following recurrence or progression on a prior endocrine-based regimen. The FDA is expected to make a decision on the approval by 18 December 2026. Giredestrant plus everolimus could be the first and only oral selective oestrogen receptor degrader (SERD) combination approved in the post-cyclin-dependent kinase (CDK)4/6 inhibitor setting.

Experts suggest this could influence future trends and innovation in the sector.

More updates are expected as the story develops.


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