PRISM: This study is examining whether a window of 7 to 21 days between radiation therapy and surgery is feasible for the treatment of non-small cell lung cancer and melanoma brain metastasesPRobing the Immunological Impact of Stereotactic Radiosurgery for Brain Metastases

Summary

All participants in this study will undergo radiation therapy to individual brain tumours. This will be performed as per standard clinical practice, and involves 1-5 outpatient visits to the Peter MacCallum Cancer Centre for treatment. In general, each treatment will take approximately 30 minutes. Blood tests will be performed before radiation therapy, and at 1 week, 4 weeks, and 3 months after radiation therapy. These blood tests will coincide with follow-up appointments with a doctor. After radiation therapy is completed, 7-21 days later there will be surgery to remove the radiation-treated brain tumours. The surgery will be performed as per standard clinical practice at the Royal Melbourne Hospital. There will be a few days of hospital stay after the surgery. Brain cancer tissue from surgery will be collected for this study. It is hoped that this research will reveal if having a window of 7 to 21 days between radiation therapy and surgery for brain cancers is beneficial, and lead to better outcomes for cancer patients.

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