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A Prebiotic Food-Enriched Dietary Intervention Added to Standard Immune Checkpoint Blockade Therapy for Improving Immune Response in Patients with Resectable Stage IIIB-D or Stage IV Cutaneous Melanoma or Locally Advanced Mucosal Melanoma, NEO-PreFED Trial

Trial Status: active

This phase II trial tests how well adding a prebiotic food enriched diet (PreFED) intervention to standard of care immune checkpoint blockade (ICB) before surgery (neoadjuvant) works to improve immune response in patients with stage IIIB-D cutaneous melanoma that can be removed by surgery (resectable), stage IV cutaneous melanoma that has spread from where it first started to a limited number of sites (oligometastatic), or mucosal melanoma has spread to nearby tissue or lymph nodes (locally advanced). The gut microbiome is the collection of microorganisms (like bacteria or fungi) that are present in the digestive system. It is associated with response to ICB in patients. Prebiotic foods, high in dietary fiber and other key nutrients, selectively support beneficial gut microbes that maintain the health of the overall gut environment. Adding a PreFED intervention to standard neoadjuvant ICB may help improve the gut microbiome and immune response in patients with resectable stage IIIB-D or stage IV cutaneous melanoma or locally advanced mucosal melanoma.