RATIONALE: Vaccines may make the body build an immune response to kill tumor cells. Infusing the vaccine directly into a lymph node may cause a stronger immune response and kill more tumor cells. PURPOSE: Phase I/II trial to study the effectiveness of vaccine therapy in treating patients who have stage IV melanoma.
OBJECTIVES: * Determine the maximum tolerated dose of intranodal Synchrovax SEM plasmid DNA vaccine in patients with stage IV melanoma. * Determine the safety and tolerability of this drug in these patients. * Determine the immunological response, as measured by changes in frequency of T cells specific against vaccine-encoded epitopes before and after treatment, in patients treated with this drug. * Determine the clinical response, as measured by lactic dehydrogenase levels and radiologic assessment of lesions, in patients treated with this drug. OUTLINE: This is a multicenter, dose-escalation study. Patients receive Synchrovax SEM plasmid DNA vaccine by continuous intranodal infusion on days 1-4. Treatment repeats every 14 days for up to 4 courses in the absence of unacceptable toxicity. Patients with evidence of stable or responding disease are eligible for 4 additional courses of treatment. Cohorts of 6 patients receive escalating doses of Synchrovax SEM plasmid DNA vaccine until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which at least 2 of 6 patients experience dose-limiting toxicity. Patients are followed at 10 days after the last dose of study drug. PROJECTED ACCRUAL: A total of 6-18 patients will be accrued for this study.
Study Type
INTERVENTIONAL
Purpose
TREATMENT
Masking
NONE
Enrollment
19
Cancer Vaccine, Immunotherapy, 500 ug
Cancer Vaccine, Immunotherapy, 1000 ug
Cancer Vaccine, Immunotherapy, 1500 ug
Arizona Cancer Center at University of Arizona Health Sciences Center
Tucson, Arizona, United States
USC/Norris Comprehensive Cancer Center and Hospital
Los Angeles, California, United States
Cancer Research Center at Boston Medical Center
Boston, Massachusetts, United States
Mayo Clinic Cancer Center
Rochester, Minnesota, United States
The primary objective of the study was to evaluate the safety and tolerability of Synchrovax® pSEM Vaccine measured by the adverse event and severe adverse event profile.
The secondary objective of the study was to determine the immunological response of patients as measured by tetramer assay and to assess clinical response by LDH levels and radiological assessment of lesions.
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Earle A. Chiles Research Institute at Providence Portland Medical Center
Portland, Oregon, United States