By Martin Bagot Men with advanced prostate cancer could be spared chemotherapy and could instead get a painless form of radiotherapy. Currently patients with a form of the disease which has spread to one or two other parts of the body are assumed to be resistant to milder hormone therapy drugs. However researchers from The Royal Marsden hospitals in London suspect it may just be some tumours that are resistant. They say that if the tumours are treated with precision stereotactic body radiotherapy (SBRT) the rest of the cancer will still respond to hormone drugs. SBRT allows clinicians to targe…