At a glance
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A Safety and Bioactivity Study of Combination Therapy With Trastuzumab, Cyclophosphamide, and an Allogeneic GM-CSF-Secreting Breast Tumor Vaccine for the Treatment of Patients With High Risk/ Metastatic HER-2/Neu- Overexpressing Breast Cancer With No Evidence of Disease
In Brief
A Phase 2 clinical trial evaluating allogeneic GM-CSF-secreting breast cancer vaccine, trastuzumab, and 7 other interventions for Breast Cancer. Completed, enrolled 20 participants across 1 site.
Detailed Summary
RATIONALE: Monoclonal antibodies, such as trastuzumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Drugs used in chemotherapy, such as cyclophosphamide, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Vaccines made from gene-modified tumor cells may help the body build an immune response to kill tumor cells. Giving trastuzumab together with cyclophosphamide and vaccine therapy may kill more tumor cells. PURPOSE: This phase II trial is studying the side effects of giving trastuzumab together with cyclophosphamide and vaccine therapy in treating patients with high-risk or metastatic breast cancer.
Study Details
Timeline
Interventions
Day 0 : Allogeneic GM-CSF-secreting Breast Cancer Vaccine administered as: 12 intradermal injections of a divided total dose of 5 x108 cells.
Patient HAS received prior Trastuzumab within the last two weeks, give Trastuzumab 2 mg/kg weekly on Day -1 for 5 weeks. Patient has NOT received Trastuzumab within the last two weeks, give On Cycle 1, Day -1 ONLY, Loading dose 4 mg/kg
Cyclophosphamide 200mg/m2 IV in NS 100ml over 30 minutes on Day -1 ONLY. Note: there are no dose modifications for Cyclophosphamide.
Samples will be analyzed by flow cytometry using Cell Quest software
Measuring Immune Priming In Vivo By Vaccine Site Biopsies
skin biopsy to be performed on day 3 and day 7 for cycle 1 and 3 only