Canadian and international researchers suspect adding a high-dose vitamin D pill to chemotherapy might improve treatment for advanced prostate cancer. So they are recruiting 1,000 men for a two-year clinical trial in order to investigate their suspicions. Currently, there is little to offer patients who no longer respond to to standard treatment.The trial will test the pill calcitriol -- a biologically active form of vitamin D and naturally occurring hormone -- to see how it works in combination with the chemotherapy drug docetaxel. Precautions will be taken to minimize side effects that can occur with high-dose supplements.
The Canadian Cancer Society estimates that 20,700 men in Canada will be diagnosed with prostate cancer this year. About 4,200 of these men are expected to die from the disease.
