1 Study Matches
Phase II Trial of Palbociclib with Fulvestrant in Individuals with Hormone Receptor-Positive, HER2-Negative Metastatic Breast Cancer who have Progressed on Treatment with Palbociclib and an Aromatase Inhibitor
In this phase II trial, we will determine the progression-free survival (PFS) of the cyclin dependent kinase 4/6 inhibitor (CDK4/6i) palbociclib with fulvestrant in women and men with estrogen or progesterone receptor (ER/PR) positive, HER2-negative metastatic breast cancer (MBC) who progressed on treatment with palbociclib and an aromatase inhibitor (AI). We will also determine the prevalence rate of estrogen eceptor α (ESR1) and phosphatidylinositol-3-kinase (PI3K) mutations in the study population.
Participants will be required to come to the clinic every three weeks for evaluation and fulvestrant injections, take medication correctly, keep all appointments.
18 year(s) or older
Inclusion Criteria:Men and women, 18 years of age or older
Histologically or cytologically confirmed adenocarcinoma of the breast with evidence of metastatic disease (stage IV) or locally advanced disease,
ER-positive and/or PR-positive tumor (≥1% positive stained cells) • HER2-negative tumor
Progressed on and following at least 6 months of combined treatment with palbociclib and AI therapy for advanced/metastatic breast cancer, and be able and willing to receive additional palbociclib treatment
Eastern Cooperative Oncology Group (ECOG) performance status 0-2
Exclusion Criteria:Women who are pregnant or breast-feeding
Concurrent use of any of the following medications during study participation: • Inhibitors or inducers of CYP3A4 that may affect serum concentrations of palbociclib
Major surgery, chemotherapy, radiotherapy, or other anti-cancer therapy within 2 weeks before registration.
Any other malignancy within 3 years prior to registration, except for adequately treated basal cell or squamous cell skin cancer, or carcinoma in situ of the cervix.
Prior hematopoietic stem cell or bone marrow transplantation.