BY Raymond DuBois, M.D., Ph.D.

We have known for the past two decades that aspirin and non-steroidal anti-inflammatory drug (NSAID) use reduces the risk of colorectal and other cancers. Today the Lancet published new reports indicating that low dose daily aspirin reduces the risk of distant metastasis of several cancers (Lancet Early Online Publication.)

The data came from 51 trials that included over 77,000 patients.

This protective effect appears to...