AV-MEL-1

This is an open label, single-arm, phase IB treatment study to determine the safety of administering anti-PD1 monoclonal antibodies with AV-MEL-1 and to get some suggestion of efficacy, in patients with measurable metastatic melanoma. The study is open to patients who have either never received treatment for metastatic melanoma or were previously treated with anti-PD-1 with or without anti-CTLA-4 or with enzymatic inhibitors of the BRAF/MEK pathway because of BRAF600E/K mutations, and are about to initiate anti-PD-1 monotherapy. The intent is to treat 14 to 20 patients with the combination of anti-PD-1 and AV-MEL-1.