Pancreatic cancer is one of the hardest diseases medicine has ever faced, and a new implant from Duke University is producing results that researchers say have no match in the existing scientific record. The device injects a radioactive gel directly into tumors, trapping iodine-131 so it radiates from the inside out before safely dissolving into harmless amino acids. Combined with chemotherapy, it eliminated tumors in the majority of mouse models tested. Human trials remain ahead, but for a disease where survival gains have been painfully slow, this early signal is genuinely remarkable.