Anomalyst writes "Mice were implanted with cancer. The control group died as tumors metastasized. The experimental group was treated with macroketone and survived a normal lifespan. While the cancer was not cured, metastasis was significantly (over 80%) inhibited. Even after metastasis had begun and additional cancers developed, macroketone inhibited subsequent metastasis. The original article is in Nature behind a paywall."