Neoadjuvant Treatment With Palbociclib and Exemestane Plus Trastuzumab and Pyrotinib in Estrogen Receptor (ER)-Positive, HER2-positive Breast Cancer

Guangdong Provincial People's Hospital (Guangdong Provincial Academy of Medical Sciences)

Status and phase

Not yet enrolling

Phase 2

Conditions

Neoadjuvant Treatment for HER2-positive, ER-positive Breast Cancer

Treatments

Drug: palbociclib and exemestane plus trastuzumab and pyrotinib

Study type

Interventional

Funder types

Other

Identifiers

NCT04858516

20201101.2

Details and patient eligibility

About

neoPEHP is a multicohort, open-label, exploratory, phase 2 study. Patients were eligible if they had previously untreated, histologically confirmed, unilateral, invasive, HER2-positive, ER-positive breast cancer and were suitable for neoadjuvant therapy. Patients were treated every 3 weeks with intravenous trastuzumab (8 mg/kg loading dose followed by 6 mg/kg) and oral pyrotinib (400 mg po QD) for six cycles plus oral palbociclib (125 mg once a day for 21 days in a 4-week cycle) and oral exemestane (25 mg po QD) every 4 weeks for 24 weeks. The primary endpoints was pathological complete response.

Enrollment

57 estimated patients

Sex

Female

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

We judged patients eligible for the first study cohort if they had previously untreated, histologically confirmed, unilateral, invasive, HER2-positive (3+ on immunohistochemistry or neu-amplified) and ER-positive (>10% of cells in the tumour expressing ER) breast cancer. Other inclusion criteria were age 18 years or older, Eastern Cooperative Oncology Group (ECOG) performance status of 1 or less, and tumour classified between cT1c and cT4a-d.

Exclusion criteria

metastatic disease, bilateral breast cancer, other malignant disease, inadequate bone marrow or renal function, impaired liver function, impaired cardiac function, uncontrolled hypertension, pregnancy, and refusal to use contraception.