At a glance
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A Phase I Dose Escalation Safety and Feasibility Study of WT1-Specific T Cells for the Treatment of Patients With Advanced Ovarian, Primary Peritoneal, and Fallopian Tube Carcinomas
In Brief
A Phase 1 clinical trial evaluating filgrastim, therapeutic autologous lymphocytes, and 2 other interventions for Fallopian Tube Cancer and 2 related conditions. Completed, enrolled 12 participants across 1 site.
Detailed Summary
RATIONALE: Giving colony-stimulating factors, such as G-CSF, helps stem cells move from the bone marrow to the blood so they can be collected. Treating stem cells collected from the patient's blood in the laboratory may increase the number of immune cells that can mount an immune response against the tumor. The treated stem cells may help destroy any remaining tumor cells (graft-versus-tumor effect). Chemotherapy may also be given to the patient to prepare the bone marrow for the stem cell transplant. PURPOSE: This phase I trial is studying the side effects and best dose of autologous T cells when given with or without cyclophosphamide and fludarabine in treating patients with recurrent or persistent advanced ovarian epithelial cancer, primary peritoneal cavity cancer, or fallopian tube cancer. (fludarabine treatment closed as of 12/012009)
Study Details
Timeline
Interventions
Stem cell mobilization and harvest: Patients receive filgrastim (G-CSF) subcutaneously daily for five days. PBMC are collected by leukapheresis on the fifth day and then cryopreserved for subsequent reinfusion into the patient, in the event of prolonged cytopenia.
Autologous T-cell infusion with or without conditioning chemotherapy ( fludarabine treatment closed as of 12/01/2009): Approximately 4-6 weeks after T-cell sensitization, patients receive an infusion of autologous WT1-specific T cells over 5-10 minutes on day 0. Patients enrolled in dose levels II and III also undergo pre-infusion lymphodepletive conditioning comprising cyclophosphamide IV on day -2 and fludarabine phosphate IV over approximately 30 minutes on days -6 to -2. After a 48-hour rest period, patients receive autologous WT1-specific T cells. Treatment repeats every 14 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. Patients with responsive or stable disease after completion of therapy, may receive additional courses of autologous WT1-specific T cells every 14 days.
Patients enrolled in dose levels II and III also undergo pre-infusion lymphodepletive conditioning comprising cyclophosphamide IV on day -2
Obtained prior to adoptive therapy to quantitate baseline levels of WT1 reactive T cells, by quantitation of WT1 specific CTLp by LDA, T cells secreting IFNγ in response to peptide and, in HLA A0201+ patients, T cell binding WT1 peptide HLA A2 tetramers.