Conditions: HER2-positive Breast Cancer ER-positive Breast Cancer
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 4
Healthy volunteers: no

Brief summary:
Hormonal therapy administered before surgery in ER-positive and HER2-positive patients with breast cancer.

Detailed description:
Hormonal therapy with fulvestrant 500 mg to be administered before surgery With docetaxel, Trastuzumab, and pertuzumab to determine pathological complete remission rate at the time of surgery in ER-positive and HER2-positive patients with breast cancer.

Arms:
arm 1: Hormonal therapy with fulvestrant 500 mg will be administered intramuscularly on days 1, 15 of the first cycle, and thereafter on day 1 of every 28-day cycle for up to 5 cycles before surgery. Docetaxel (T) 75 mg/m2 every 3 weeks will be given for four cycles. Trastuzumab (H, 8mg/kg for 1st cycle, then 6 mg/kg in subsequent cycles before and after surgery), pertuzumab (P, 840 mg for 1st cycle, then 420 mg in subsequent 3 cycles) will be given concurrently with docetaxel for a total of 4 cycles before surgery.

Interventions: intervention 1: fulvestrant 500 mg intervention 2: Docetaxel intervention 3: Trastuzumab (H, 8mg/kg intervention 4: Pertuzumab (P, 840 mg
Intervention descriptions: intervention 1: Hormonal therapy with fulvestrant 500 mg will be administered intramuscularly on days 1, 15 of the first cycle, and thereafter on day 1 of every 28-day cycle for up to 5 cycles before surgery. intervention 2: Docetaxel (T) 75 mg/m2 every 3 weeks will be given for four cycles. intervention 3: Trastuzumab (H, 8mg/kg for 1st cycle, then 6 mg/kg in subsequent cycles before and after surgery), pertuzumab (P, 840 mg for 1st cycle, then 420 mg in subsequent 3 cycles) will be given concurrently with docetaxel for a total of 4 cycles before surgery. intervention 4: Trastuzumab (H, 8mg/kg for 1st cycle, then 6 mg/kg in subsequent cycles before and after surgery), pertuzumab (P, 840 mg for 1st cycle, then 420 mg in subsequent 3 cycles) will be given concurrently with docetaxel for a total of 4 cycles before surgery.

Protocol document: