Isolated Limb Infusion Chemotherapy With Targeted Gene Therapy for Advanced, Unresectable Extremity Melanoma

This phase I/II trial studies the safety, best dose and effectiveness of targeted gene therapy combined with isolated limb infusion (ILI) of melphalan and dactinomycin for treating patients with advanced extremity melanoma that cannot be removed by surgery. Adding gene therapy to a standard chemotherapy regimen in the isolated limb may enhance anti-cancer effects by inducing a systemic immune response against the tumor cells.