A Phase I Vaccine Trial of a HER-2/Neu Peptide Incorporated Into PLG Microspheres in Patients With Advanced Stage HER2-Expressing Cancers
HER-2/neu peptide vaccine
+ sargramostim
Urogenital Diseases+30
+ Genital Diseases
+ Adenocarcinoma
Treatment Study
Summary
Study start date: March 1, 1999
Actual date on which the first participant was enrolled.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.
Protocol
This section provides details of the study plan, including how the study is designed and what the study is measuring.Treatment Study
Eligibility
Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.Any sex
Biological sex of participants that are eligible to enroll.From 18 to 120 Years
Range of ages for which participants are eligible to join.Healthy volunteers not allowed
If individuals who are healthy and do not have the condition being studied can participate.Conditions
Pathology
Criteria
DISEASE CHARACTERISTICS: Stage III adenocarcinoma that overexpresses HER-2 and previously treated by surgical resection, conventional chemotherapy, or radiotherapy OR Stage IV adenocarcinoma that overexpresses HER-2 and in stable or complete remission with no other concurrent chemotherapy Must have documented HER-2 protein overexpression in the primary or metastatic tumor HLA-A2 positive PATIENT CHARACTERISTICS: Age: 18 and over Performance status: Karnofsky 90-100% Life expectancy: At least 12 months Hematopoietic: WBC greater than 3,500/mm3 Platelet count greater than 100,000/mm3 Hepatic: Bilirubin less than 1.5 mg/dL Renal: Creatinine less than 1.5 mg/dL OR Creatinine clearance greater than 60 mL/min Other: Female patients must have completed childbearing Fertile male patients must use effective contraception PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: See Disease Characteristics At least 4 weeks since prior cytotoxic chemotherapy Endocrine therapy: At least 4 weeks since prior corticosteroids Radiotherapy: See Disease Characteristics Surgery: See Disease Characteristics Other: No other concurrent investigational phase I studies
Study Centers
These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.This study has 1 location
University of Washington School of Medicine
Seattle, United StatesOpen University of Washington School of Medicine in Google Maps