A Study of Liposomal Doxorubicin + Docetaxel + Trastuzumab + Metformin in Operable and Locally Advanced HER2 Positive Breast Cancer (met-HEReMYTA)
HER-2 Positive Breast Cancer

About this trial
This is an interventional treatment trial for HER-2 Positive Breast Cancer focused on measuring HER-2 Positive Breast Cancer, operable breast cancer, locally advanced breast cancer, no prior therapy, pCR
Eligibility Criteria
Inclusion Criteria:
- Patients must have histologically confirmed breast cancer
- HER2 overexpressing cancer
- Patients with operable breast cancer (T1c and cytologically N1-2, or cT2-3, N0-N2, M0) or locally advanced breast cancer (T4a-d, N0-N2, M0) (AJCC 7th edition 2010).
- No prior therapy for breast cancer
- Both sexes, age ≥ 18 years and < 75 years
- Eastern Cooperative Oncology Group (ECOG) performance status 0-1
- Life expectancy > 3 months
- Neutrophil count ≥ 2 x 109/ L, leukocytes count ≥ 3 x 109/ L and platelet count ≥ 100 x 109/ L
- Total bilirubin ≤ 1 upper-normal limits (UNL) of the Institutional normal values and alanine aminotransferase (ASAT (GOT) and/or alanine aminotransferase ALAT (GPT) ≤ 2.5 UNL, alkaline phosphatase ≤ 5 UNL. Patients with ASAT and/or ALAT > 1.5 UNL and alkaline phosphatase > 2.5 UNL aren't eligible for the trial.
- Creatinine ≤ 1.5 mg/dL
- Left ventricular ejection fraction (LVEF) ≥ 50% (evaluated by echocardiogram or multiple gated acquisition scan (MUGA) scan -only one method must be employed for each patient)
- Written informed consent
- Homa Index calculated using the Matthews'formula
EXCLUSION CRITERIA:
- Prior chemotherapy or radiotherapy for breast cancer.
- History of prior malignancy in the last 10 years (other than non-melanoma skin cancer or excised cervical carcinoma in situ).
- Other serious illness or medical condition
- Congestive heart failure or angina pectoris even if medically controlled. Previous history of myocardial infarction, uncontrolled high risk hypertension or arrhythmia
- History of significant neurologic or psychiatric disorders including dementia or seizures
- Active infection
- Concurrent treatment with other experimental drugs.
- Participation in another clinical trial with any investigational agents within 30 days prior to study screening.
- Geographic inaccessibility to treatment and followup
- Pregnant and lactating women
- Diabetes-insulin dependant and non-insulin dependant
Sites / Locations
- IRST Oncologia medica
- Oncologia Medica AOU Ferrara
- Oncologia Medica, Policlinico di Modena
- Oncologia Medica Ospedale Guglielmo da Saliceto
- Oncologia , IRCCS azienda ospedaliera S.Maria Nuova
- U.O Oncologia AUSLdella Romagna
- Day Hospital Oncologico, Ospedale Guastalla
- Oncologia Medica AUSL Imola
- Oncologia Medica AOU Parma
Arms of the Study
Arm 1
Experimental
Liposomal doxorubicin +Docetaxel+Trastuzumab+Metformin
Day 1: Liposome-encapsulated doxorubicin, 50 mg/m2 IV 1 hour infusion; Day 2 and 9: Docetaxel, 30 mg/m2 IV 1 hour infusion; Day 2, 9 and 16: Trastuzumab 4 mg/kg for the first infusion loading dose, then 2 mg/kg/week for subsequent injections. Day -13 to 0: Metformin is administered as single agent. From day -13 to day -11, Metformin 1000 mg will be administered once a day; from day -10 Metformin 1000 mg will be administered twice a day continuously until end of the study treatment.