Prospective Evaluation of Response to Treatment, Survival Functions, Recurrence Pattern and Toxicity Profile in Indian Patients with Oligo-Brain Metastasis Treated with Only SRS.

Background: Prospective analysis of oligo-brain metastasis in Indian patients treated with SRS-only treatment.

Methods: Between January 2017 and May 2022, 235 patients were screened and 138 histologically proven and radiologically confirmed. One to five brain metastasis patients aged more than 18 years with good Karnofsky performance status (KPS >70) accrued in ethical and scientific committee-approved prospective observational study protocol for treatment with only radiosurgery (SRS) with robotic radiosurgery (CyberKnife, CK) [AIMS IRB: 2020-071; CTRI No: REF/2022/01/050237].