Vaccine Therapy With or Without Interleukin-2 in Treating Patients With Metastatic Melanoma

OBJECTIVES: * Compare the clinical response in patients with metastatic melanoma treated with immunization with recombinant fowlpox vaccine administered either intravenously or intramuscularly, with or without interleukin-2 (IL-2). * Compare the immune response in patients before and after treatment with these regimens. * Compare the toxicity profile of these regimens in these patients. OUTLINE: This is a partially randomized study. Patients are randomized to 1 of 3 treatment cohorts. * Cohort 1: Patients receive recombinant fowlpox virus encoding gp100 peptide (fowlpox vaccine) IV once every 4 weeks for up to 4 doses. (Closed to accrual as of 6/21/02.) * Cohort 2: Patients receive fowlpox vaccine intramuscularly (IM) once every 4 weeks for up to 4 doses. (Closed to accrual as of 6/21/04.) * Cohort 3 (for patients in need of immediate interleukin-2 \[IL-2\] and those with disease progression after treatment in cohorts 1 or 2): Patients receive fowlpox vaccine either IV or IM\* once every 4 weeks for 4 doses and IL-2 IV every 8 hours for a maximum of 12 doses beginning 24 hours after fowlpox vaccine. NOTE: \*The IM route of administration was selected as the preferred route of administration from cohorts 1 and 2 * Expanded cohort 2 (open to accrual 7/19/02): Patients receive fowlpox vaccine IM once every 4 weeks for up to 4 doses. Upon disease progression, patients receive fowlpox vaccine as above and IL-2 IV every 8 hours for a maximum of 12 doses beginning 24 hours after fowlpox vaccine. (Closed to accrual 12/4/03.) In all cohorts, 3-4 weeks after the last injection, patients achieving a complete remission may receive a maximum of an additional 2 courses of therapy. Patients with responding disease may receive repeat vaccinations for up to 8 courses. Patients with no response or progressive disease in cohorts not receiving IL-2 may be treated with fowlpox vaccine and IL-2 as in cohort 3. Patients who are randomized to receive IL-2 may not receive additional IL-2 therapy. PROJECTED ACCRUAL: A maximum of 84 patients (24 in cohorts 1 and 2, 19-33 in cohort 3, and 27 in expanded cohort 2) will be accrued for this study within 1 year.