Cancer, Breast
Conditions
Brief summary
Phase II, Open Label, Randomized, Biomarker Study of Immune-mediated Mechanism of Action of Neoadjuvant Subcutaneous (SC) Trastuzumab in Patients with Operable or Locally Advanced /Inflammatory HER2-positive Breast Cancer (ImmunHER)
Detailed description
Women with histologically confirmed HER2-positive breast cancer with locally advanced, inflammatory,or early stage tumor (either greater than 2 cm in diameter or node positive) with no evidence of metastatic disease.
Interventions
pertuzumab IV (840 mg loading dose, followed by 420 mg) weeks for 4 cycles (both arms)
Pre-randomization phase: FEC (fluorouracil 500 mg/m2; epirubicin 75 mg/m2; cyclophosphamide 500 mg/m2) x 3 cycles Post-randomization phase: Group A: Trastuzumab IV (8 mg/kg loading dose, followed by 6 mg/kg) plus pertuzumab IV (840 mg loading dose, followed by 420 mg) plus docetaxel (75 mg/m2)\*, every 3 weeks for 4 cycles. by 420 mg) plus docetaxel (75 mg/m2)\*, every 3 weeks for 4 cycles. \*The dose of docetaxel may be escalated to 100 mg/m 2 at the investigator's discretion on subsequent cycles if the initial dose is well tolerated. After surgery, study patients will receive trastuzumab x 14 cycles using the same formulation (SC or IV) of the preoperative phase.
Pre-randomization phase: FEC (fluorouracil 500 mg/m2; epirubicin 75 mg/m2; Group B: Trastuzumab SC (fixed dose of 600 mg) plus pertuzumab IV (840 mg loading dose, followed by 420 mg) plus docetaxel (75 mg/m2)\*, every 3 weeks for 4 cycles. \*The dose of docetaxel may be escalated to 100 mg/m 2 at the investigator's discretion on subsequent cycles if the initial dose is well tolerated. After surgery, study patients will receive trastuzumab x 14 cycles using the same formulation (SC or IV) of the preoperative phase.
docetaxel (75 mg/m2), every 3 weeks for 4 cycles (both arms). The dose of docetaxel may be escalated to 100 mg/m2 at the investigator's discretion on subsequent cycles if the initial dose is well tolerated.
Sponsors
Study design
Intervention model description
Non comparative, multi-center, open-label, neoadjuvant, randomized study, the purpose of randomization is to reduce bias owing to patient selection into treatments groups.
Eligibility
Inclusion criteria
* Previously untreated, infiltrating primary breast cancer with locally advanced, inflammatory, or early stage tumor (either greater than 2 cm in diameter or node positive) with no evidence of metastatic disease. * HER2 positivity (either immunohistochemistry 3+ or fluorescent in situ hybridization amplification). * Age 18 or older. * Eastern Cooperative Oncology Group performance status of 0 to 1. * Availability of tumor tissue for biologic and molecular examination before starting primary treatment. * Left ventricular ejection fraction within the institutional range of normal. * Normal organ and marrow function. * Adequate contraception methods for women of childbearing potential. * Prior diagnosis of cancer is allowed as long as patient is free of disease and has been off treatment for the prior malignancy for a minimal interval of 3 years. * Written informed consent.
Exclusion criteria
* Either stage I or IV breast cancer. * Prior trastuzumab or pertuzumab. * Any prior chemotherapy. * Treatment with any other investigational agent, or participation in another clinical trial within 28 days prior to enrolment. * Undergone major surgery (e.g., intrathoracic, intra-abdominal or intra-pelvic) 4 weeks prior to starting study drug or who have not recovered from side effects of such surgery. * Breast radiotherapy prior to starting study. * Known hypersensitivity to the investigational drugs or any of their excipients. * Evidence of any disease, neurological or metabolic dysfunction, physical examination finding or laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of an GOIRC-01-2016 ImmunHER Protocol Version 1.0, 11 April 2016 Page 6 of 140 investigational drug, or puts the patient at high risk for treatment-related complications. * Moderate/severe hepatic impairment (Child- Pugh B/C). * Uncontrolled inter-current illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements. * Concurrent malignancy or malignancy within 3 years prior to study enrollment, with the exception of adequately treated basal cell carcinoma, squamous cell carcinoma or other non-melanomatous skin cancer, or insitu carcinoma of the uterine cervix. * Pregnancy or breastfeeding (breast feeding should be discontinued to be enrolled in the study). * Women of childbearing potential that refusal to adopt adequate contraceptive measures. * Unwilling or unable to comply with the protocol. -
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Tumor Infiltrating lymphocites (TIL) rate on residual disease after either IV trastuzumab or SC trastuzumab (see related paragraph) | 6 months after last patient in | stromal lymphocytes will be scored quantitatively on H&E stained whole-tumor slides as a continuous variable expressed as stromal percentage area within the tumor boundaries. For tumors with heterogeneous TILs, median values will be calculated from multiple counts from different tumor areas. Intra-epithelial TILs will also be recorded as well as tertiary lymphoid structures. Tumor regression will be scored based on recommended criteria. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Associations between biomarkers (TIL, Tumor specific lymphocyte cell activity (TLA), and Fc-gamma-R polymorphisms) and between each biomarker with clinical outcome variables. | at baseline, 6 months and 5 years after last patient in | — |
| Frequency of toxicity Events: frequency of moderate and severe toxicity events and drop-out rate due to theraphy related toxicity (NCICommon Toxicity Criteria v 4.0) | 3.5 years | — |
| HRQOL during study treatment based on FACT-B | at baseline, and 6 months after last patient in | mean FACT-B scores assessed at enrolment and mean FACT-B scores assessed before surgery. |
| Complete pathological response rate by treatment arm | 6 months after last patient in | — |
| 5-year disease-free survival by treatment arm between treatment arms | 5 years | — |
Countries
Italy