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A Phase I/II Study in Metastatic Breast Cancer Patients Infused With Stromagen and Isolated, Mobilized, Autologous Peripheral Blood CD34+ Progenitor Cells After High-Dose Chemotherapy (NCT00003877)

National Cancer Institute (NCI)
RATIONALE: Peripheral stem cell transplantation may allow doctors to give higher doses of chemotherapy and kill more tumor cells. It is not yet known whether Stromagen improves the success of stem cell transplantation in women with breast cancer. PURPOSE: Randomized phase I/II trial to study the effectiveness of Stromagen during stem cell transplantation following chemotherapy in treating women with metastatic breast cancer.
  • Biological: filgrastim
    • Drug: carboplatin
      • Drug: cyclophosphamide
        • Drug: paclitaxel
          • Drug: thiotepa
            • Procedure: in vitro-treated bone marrow transplantation
              • Procedure: in vitro-treated peripheral blood stem cell transplantation
                Ages eligible for Study
                18 Years to 64 Years
                Genders eligible for Study
                Female
                Accepts Healthy Volunteers
                No
                OBJECTIVES: I. Determine the safety of expanded mesenchymal stem cells (Stromagen) infusion and autologous CD34+ peripheral blood stem cells transplantation after high dose chemotherapy in women with metastatic breast cancer. II. Compare the time to neutrophil and platelet engraftment in patients receiving different doses of Stromagen. III. Evaluate the immune reconstitution of these patients after this therapy.

                OUTLINE: This is a randomized, placebo controlled, blinded study. Patients are randomly assigned to one of three treatment arms. All patients undergo mobilization of peripheral blood stem cells (PBSC) using cyclophosphamide IV over 1 hour and paclitaxel IV over 3 hours on day 1, and filgrastim (G-CSF) subcutaneously beginning on day 4 and continuing until completion of leukapheresis. PBSC and bone marrow cells are collected and CD34 positive cells are then selected. About 4 weeks later, patients receive high dose chemotherapy. Cyclophosphamide IV over 24 hours, carboplatin IV over 24 hours, and thiotepa IV over 24 hours are administered on days -7 to -4. Patients then receive placebo or one of two doses of expanded mesenchymal stem cells (Stromagen) IV on day -1 and CD34+ selected PBSC IV over 2 hours on day 0. Patients are followed at 6 weeks and 12 weeks, than at 1 year.

                PROJECTED ACCRUAL: A total of 30 patients will be accrued for this study.

                3 locations

                United States (3)
                • Barbara Ann Karmanos Cancer Institute
                  Detroit, Michigan, United States, 48201
                • Roswell Park Cancer Institute
                  Buffalo, New York, United States, 14263-0001
                • Ireland Cancer Center
                  Cleveland, Ohio, United States, 44106-5065
                Status:
                completed
                Type:
                Interventional
                Phase:
                Ⅰ, Ⅱ
                Start:
                31 August, 1998
                Updated:
                02 March, 2011
                Participants:
                30
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