1275 Preliminary clinical results of active immunization with interleukin-4 gene transfected allogeneic melanoma cells in metastatic melanoma patients

From May 1994 to February 1995 five HLA-A2 patients affected with melanoma metastases were treated with active immunization with IL4 transfected, irradiated, HLA-A2 + allogeneic melanoma cells. They were injected with 50 × 10 6 cells at day 1, 13, 26, 55. Two patients received 4 vaccinations, 1 patient 3 vaccinations and 2 patients (actually not evaluables) were injected 2 times. According to the WHO toxicity grading 2 patients presented grade 2 local toxicity and 3 patients had grade 1. No systemic toxicity was recorded. No evidence of clinical response was obtained. At the present, 4 patients are alive with disease and 1 patient is alive without disease after surgical excision of a cutaneous metastasis.