The Clinical Relevance of Margins in Frameless Stereotactic Radiosurgery for Intact Brain Metastases: a Randomized Trial of 0 vs 2 mm Margins
University of Chicago
Summary
This is a randomized study to determine if not treating planning target volume (PTV) margins during radiation therapy worsens progression free survival rates in patients with brain metastases.
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Adult patients (≥ 18 years old) with an ECOG Performance Status 0-2 and a life expectancy of 3 months or more. * Histologically confirmed systemic malignancy with gadolinium contrast-enhanced MRI scan demonstrating 1-5 intraparenchymal brain metastases. * Well-circumscribed, measureable intraparenchymal brain lesion(s) with maximum tumor diameter ≤3.0 cm. If multiple lesions are present, the other(s) must not exceed 3.0 cm in maximum diameter. At least one lesion must be ≥1.0 cm in maximum diameter and ≥0.5 cm in a perpendicular diameter to be considered measurable disea…
Interventions
- ProcedureStereotactic Radiosurgery
The SRS dose will depend on the maximum diameter of the gross tumor volume (GTV)
Location
- University of ChicagoChicago, Illinois