Could a single radiation dose ease bone pain as well as five?

This trial is testing whether a single, higher dose of radiation (8 Gy) can relieve pain from bone metastases as effectively as a standard course of five smaller doses (20 Gy total). The study includes adults with cancer that has spread to the bones and who have significant pain. The main goal is to see if this approach is practical and acceptable to patients, while also checking pain relief, side effects, and the need for repeat treatment. The results will help design a larger study to confirm the best way to deliver palliative radiotherapy.