One trial focuses on treating melanoma stage IV patients using pDC (NCT01690377), whereas three trials focus on treating melanoma stage IV (NCT03747744, NCT01690377) or solid tumours with CD1c+ myeloid DCs (NCT03707808), the rest are testing the effects of a combination of vaccines on melanoma stage III (NCT02993315, NCT02574377) and prostate cancer (NCT02692976). This evidence concerns the gene CD1C and melanoma.