Elacestrant With/Without Triptorelin in Premenopausal Women With Luminal Breast Cancer

Elacestrant 400 mg given orally on a daily and continuous basis for 30 days or until the day before surgery or biopsy (+7 extra days).

Monthly triptorelin 3.75 mg powder and solvent for prolonged-release suspension for injection. Each vial contains 3.75 mg of triptorelin (acetate). After reconstitution with 2 ml of solvent, 1 ml of the suspension contains 1.875 mg triptorelin. This drug contains sodium, but less than 1 mmol (23 mg) of sodium per vial.Triptorelin will be administrated on D1 and D29.