Watchful wait works for prostate cancer

Men with low-grade prostate cancers can be assured that active surveillance will help avoid overtreatment without risking their mortality, US researchers say.

A 15-year study of 1298 men deemed at low risk of prostate cancer progression found that only five men (0.4%) had metastases or died as a result of prostate cancer during follow-up.

On diagnosis, the men were classified as low risk based on variables such as age, (median 66 years) and Gleason score (less than 6). For active surveillance the men underwent PSA measurement and digital rectal examination every six months, and had an