This phase I trial is to find out the best dose, possible benefits and/or side effects of nilotinib given together with trametinib and dabrafenib in treating patients with BRAF V600 mutant melanoma that has spread to other places in the body (metastatic) or cannot be removed by surgery (unresectable). Nilotinib, trametinib, and dabrafenib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving nilotinib together with trametinib and dabrafenib may lower the chance of cancer growing or spreading.

This ComboMATCH patient screening trial is the gateway to a coordinated set of clinical trials to study cancer treatment directed by genetic testing. Patients with solid tumors that have spread to nearby tissue or lymph nodes (locally advanced) or have spread to other places in the body (advanced) and have progressed on at least one line of standard systemic therapy or have no standard treatment that has been shown to prolong overall survival may be candidates for these trials. Genetic tests look at the unique genetic material (genes) of patients' tumor cells. Patients with some genetic changes or abnormalities (mutations) may benefit from treatment that targets that particular genetic mutation. ComboMATCH is designed to match patients to a treatment that may work to control their tumor and may help doctors plan better treatment for patients with locally advanced or advanced solid tumors.