Glossary Term:


intermittent hormone therapy



a type of prostate cancer treatment in which hormone drugs are stopped after a man’s blood prostate-specific antigen (PSA) level drops to a very low level and remains stable for a while. If the PSA level begins to rise, the drugs are started again. Another form of intermittent hormone therapy uses androgen suppression for fixed periods of time – for example, 6 months on followed by 6 months off. While this treatment approach may help reduce side effects, it is too soon to say whether it is better or worse than continuous hormonal therapy. See also androgen deprivation therapy, hormone therapy, prostate-specific antigen.