RATIONALE: Vaccines made from DNA may help the body build an effective immune response to kill tumor cells. Giving the vaccine in different ways may make a stronger immune response and kill more tumor cells. PURPOSE: This randomized clinical trial is studying two different ways of giving vaccine therapy to compare how well they work in treating patients with stage IIB, stage IIC, stage III, or stage IV melanoma.
OBJECTIVES: Primary * Evaluate the safety and feasibility of particle-mediated epidermal delivery (PMED) immunization comprising mouse gp100 plasmid DNA vaccine in patients with stage IIB, IIC, III, or IV melanoma. * Compare the immunologic response induced with PMED vs intramuscular jet injection methods of vaccination in these patients. Secondary * Observe patients with measurable tumor for evidence of any antitumor response generated after vaccination. * Assess for disease relapse in patients treated with this vaccine. OUTLINE: This is a randomized, pilot study. Patients are randomized to 1 of 2 treatment arms. * Arm I: Patients receive mouse gp100 plasmid DNA vaccine by particle-mediated epidermal delivery on days 1, 3, 5, 8, 22, 24, 26, 29, 43, 45, 47, 50, 64, 66, 68, and 71. * Arm II: Patients receive mouse gp100 plasmid DNA vaccine by intramuscular jet injection on days 1, 3, 5, 8, 22, 24, 26, 29, 43, 45, 47, 50, 64, 66, 68, and 71. After completion of study treatment, patients are followed periodically for 1 year.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
35
Memorial Sloan-Kettering Cancer Center
New York, New York, United States
Number of Patients Evulated for Toxicity and Safety
All toxicity will be graded according to the National Cancer Institute (NCI) Common Toxicity Criteria v3.0.
Time frame: 2 years
Number of Participants With a T-cell Response
T-cell response: Peripheral blood lymphocytes will be tested for reactivity against gp100 using an IFN-y ELISPOT, intracellular cytokine staining or MHC tetramer assay. If T-cell reactivity is induced, additional samples may be drawn to determine the duration of this reactivity. Follow-up blood samples require only 20-30 ml. MHC tetramer assays and intracellular flow cytometry studies may also be performed.
Time frame: 2 years
Number of Participants With Response
In patients with measurable disease, the RECIST criteria for anti-tumor effect will be used. Lesions will be defined as measurable if they can be accurately measured in at least one dimension (longest diameter to be recorded) as \> 20 mm with conventional techniques or as \> 10 mm by spiral CT scan.Complete Response (CR): Disappearance of all target lesions. Partial Response (PR): At least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD Progressive Disease (PD): At least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum LD since the treatment started.
Time frame: 2 years
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