PCRC_S1418

A Randomized, Phase III Trial to Evaluate the Efficacy and Safety of MK-3475 (Pembrolizumab) as Adjuvant Therapy for Triple Receptor-Negative Breast Cancer With ≥ 1 cm Residual Invasive Cancer or Positive Lymph Nodes (ypN+) After Neoadjuvant Chemotherapy

This randomized phase III trial studies how well pembrolizumab works in treating triple-negative breast cancer. Monoclonal antibodies, such as pembrolizumab, may interfere with the ability of tumor cells to grow and spread.

Key Eligibility:
• Patients must have histologically confirmed estrogen receptor (ER)-, progesterone receptor (PR)- and HER2-negative (triple-negative, TNBC) with residual invasive breast cancer, as defined by the 2010 and 2013 American Society of Clinical Oncology (ASCO) College of American Pathologists (CAP) guidelines, after completion of neoadjuvant chemotherapy; residual disease must be >= 1 cm in greatest dimension, and/or have positive lymph nodes (ypN+) observed on pathologic exam
• Patients must not have metastatic disease (i.e., must be M0)
• Patients must have had neoadjuvant chemotherapy followed by surgery; the recommended neoadjuvant treatment should include 16-24 weeks of a third generation chemotherapy regimen as recommended by National Comprehensive Cancer Network (NCCN) guidelines for triple negative breast cancer (examples include dose dense adriamycin-cytoxan [AC] followed by dose-dense paclitaxel; weekly paclitaxel x 12 followed or preceded by cyclophosphamide-adriamycin-fluorouracil [FAC], fluorouracil-epirubicin-cytoxan [FEC], AC or dose dense AC; docetaxel either followed or preceded by FEC/FAC or AC; carboplatin-containing neoadjuvant chemotherapy is also allowed); patients who cannot complete all planned treatment cycles for any reason are considered high risk and therefore are eligible for the study if they have residual disease; patients must have resolution of adverse event(s) of the most recent prior chemotherapy to grade 1 or less, except alopecia and =< grade 2 neuropathy which are allowed
• Patients must not have had prior immunotherapy with anti-PD-L1, anti-PD-1, anti-CTLA4 or similar drugs
• No other prior invasive malignancy is allowed except for the following: adequately treated basal (or squamous cell) skin cancer, in situ breast or cervical cancer; stage I or II invasive cancer treated with a curative intent without evidence of disease recurrence for at least five years
Phase III
NCT02954874
Cancer
Breast
Gary Goodman, M.D.
SWOG (Southwest Oncology Group)
Nikki Moxon

The Pacific Cancer Research Consortium clinical trials are offered at multiple locations throughout Oregon, Washington, Alaska, California, and Idaho. To find a location near you, please contact the Patient Engagement Center at 844-552-2734.