Magnetic tracer could replace radioactive dye in melanoma surgery

This phase 3 trial tests whether a magnetic tracer (Magtrace) works as well as the standard radioactive dye plus blue dye for finding sentinel lymph nodes in people with melanoma. About 254 adults having surgery for melanoma will receive both tracers and be randomly assigned to have one method used first. The goal is to see if the magnetic method can reliably identify the first lymph nodes where cancer might spread, potentially offering a safer, needle-free alternative.