Vaccine Therapy Plus Sargramostim in Treating Patients With Stage III or Stage IV Cancer
RATIONALE: Vaccines may make the body build an immune response to tumor cells. Colony-stimulating factors such as sargramostim increase the number of immune cells found in bone marrow or peripheral blood.
PURPOSE: Phase I trial to study the effectiveness of vaccine therapy plus sargramostim in treating patients who have stage III or stage IV cancer.
Biological: HER-2/neu peptide vaccine
|Study Design:||Primary Purpose: Treatment|
|Official Title:||A Phase I Vaccine Trial of a HER-2/Neu Peptide Incorporated Into PLG Microspheres in Patients With Advanced Stage HER2-Expressing Cancers|
|Study Start Date:||March 1999|
|Study Completion Date:||January 2001|
|Primary Completion Date:||January 2001 (Final data collection date for primary outcome measure)|
OBJECTIVES: I. Determine the safety of serial intradermal or subcutaneous vaccinations of HER-2 derived p369-377 peptide incorporated into polylactide-co-glycolide (PLG) microspheres with adjuvant sargramostim (GM-CSF) in patients with stage III or IV HER-2 expressing cancers. II. Determine whether cytotoxic T lymphocytes (CTL) specific for the HER-2 protein can be elicited in patients with HLA-A2 by immunization with this regimen. III. Determine which route of immunization, intradermal or subcutaneous, is more effective in generating HER-2 specific CTL in these patients on this regimen. IV. Determine the extent to which escalated dose of PLG peptide affects the immune response in these patients on this regimen.
OUTLINE: Patients undergo leukapheresis prior to study and after final vaccination. Patients are sequentially entered into one of three treatment arms: Arm I: Patients receive an intradermal vaccination of HER-2 derived p369-377 peptide incorporated into polylactide-co-glycolide (PLG) microspheres with adjuvant sargramostim (GM-CSF). Arm II: Patients receive a subcutaneous vaccination of HER-2 derived p369-377 peptide incorporated into PLG microspheres with adjuvant GM-CSF. Arm III: Patients receive a higher dose of subcutaneous vaccination of HER-2 derived p369-377 peptide incorporated into PLG microspheres with adjuvant GM-CSF. Treatment repeats every 4 weeks for up to 6 courses in the absence of unacceptable toxicity.
PROJECTED ACCRUAL: A total of 15 patients (5 per treatment arm) will be accrued for this study.
|United States, Washington|
|University of Washington School of Medicine|
|Seattle, Washington, United States, 98195|
|Study Chair:||Mary (Nora) L. Disis, MD||University of Washington|