Is the cure for cancer patent No US 6506559 If so why arent trials being done on dying patients?

The referenced patent, US6506559 (“Treatment and prevention of chronic degenerative diseases with curcuminoids"), describes the use of curcuminoids, natural compounds found in turmeric, for treating and preventing chronic degenerative diseases. It does not claim to be a cure for cancer. While curcumin has shown potential anticancer effects in laboratory and animal studies, clinical trials are still ongoing to evaluate its safety and efficacy in cancer treatment. As with any experimental treatment, the testing and approval process for new drugs can be complex and time-consuming to ensure their safety and effectiveness before they can be widely used.