Testing Longer Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients With Cancer That Has Spread to the Brain
Recruiting now Phase 3 NCT06500455
Run by NRG Oncology · for 18 and older · All sexes
What this study is about
This phase III trial compares the effectiveness of fractionated stereotactic radiosurgery (FSRS) to usual care stereotactic radiosurgery (SRS) in treating patients with cancer that has spread from where it first started to the brain. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. FSRS delivers a high dose of radiation to the tumor over 3 treatments. SRS is a type of external radiation therapy that uses special equipment to position the patient and precisely give a single large dose of radiation to a tumor. FSRS may be more effective compared to SRS in treating patients with cancer that has spread to the brain.
Who can join (things the study team will check)
✅ You may be able to join if…
- Pathologically (histologically or cytologically) proven diagnosis of one of the following solid tumor malignancies within 5 years prior to registration:
- Non-small cell lung cancer
- Melanoma
- Breast cancer
- Renal cell carcinoma
- Gastrointestinal cancer
- If the original histologic proof of malignancy is greater than 5 years, then more recent pathologic confirmation (e.g., from a systemic site or brain metastasis) or unequivocal imaging confirmation of extracranial metastatic disease (e.g. CT of the chest/abdomen/pelvis, positron emission tomography [PET]/CT, etc.) is required
- Patients must have at least 1 and up to 8 total intact brain metastases detected on a contrast-enhanced MRI performed ≤ 21 days prior to registration
- At least 1 of the up to 8 lesions must be a study eligible lesion, defined as lesion with a maximum diameter as measured on any orthogonal plane (axial, sagittal, coronal) of ≥ 1.0 cm and ≤ 3.0 cm
- All brain metastases must be located outside of the brainstem and ≥ 5 mm from the optic nerves or optic chiasm and ≤ 3.0 cm in maximum dimension
- Note: brainstem metastases per the MRI within 21 days of registration are an exclusion criterion; however, if the MRI used for treatment planning performed within 7 days of SRS/FSRS reveals a brainstem metastasis, the patient remains eligible if the patient is considered an appropriate radiosurgery candidate per the local investigator
- Patients must have a diagnosis-specific graded prognostic assessment ≥ 1.5
- No more than 2 lesions planned for resection if clinically indicated
- No known leptomeningeal disease (LMD)
- Note: For the purposes of exclusion, LMD is a clinical diagnosis, defined as positive cerebrospinal fluid (CSF) cytology and/or unequivocal radiologic or clinical evidence of leptomeningeal involvement. Patients with leptomeningeal symptoms in the setting of leptomeningeal enhancement by imaging (MRI) would be considered to have LMD even in the absence of positive CSF cytology. In contrast, an asymptomatic or minimally symptomatic patient with mild or nonspecific leptomeningeal enhancement (MRI) would not be considered to have LMD. In that patient, CSF sampling is not required to formally exclude LMD, but can be performed at the investigator's discretion based on level of clinical suspicion
- Age ≥ 18 years
- Karnofsky performance status (KPS) ≥ 60
- Negative urine or serum pregnancy test (in persons of childbearing potential) within 14 days prior to registration. Childbearing potential is defined as any person who has experienced menarche and who has not undergone surgical sterilization (hysterectomy or bilateral oophorectomy) or who is not postmenopausal
- No prior radiotherapy to the brain (partial or whole brain irradiation, SRS, FSRS, or prophylactic cranial irradiation [PCI])
- New York Heart Association Functional Classification II or better (NYHA Functional Classification III/IV are not eligible) (Note: Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional Classification)
- No active infection currently requiring intravenous (IV) antibiotic management
- No hepatic insufficiency resulting in clinical jaundice and/or coagulation defects
- No chronic obstructive pulmonary disease exacerbation or other acute respiratory illness precluding study therapy
Where this trial is running
- Banner University Medical Center - Tucson, Tucson, Arizona, United States
- University of Arizona Cancer Center-North Campus, Tucson, Arizona, United States
- Mercy Hospital Fort Smith, Fort Smith, Arkansas, United States
- University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States
- Kaiser Permanente-Anaheim, Anaheim, California, United States
- Kaiser Permanente-Bellflower, Bellflower, California, United States
- City of Hope Corona, Corona, California, United States
- City of Hope Comprehensive Cancer Center, Duarte, California, United States
- UC San Diego Health System - Encinitas, Encinitas, California, United States
- UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care, Irvine, California, United States
- City of Hope at Irvine Lennar, Irvine, California, United States
- UC San Diego Moores Cancer Center, La Jolla, California, United States
+ 258 more sites.
Verify everything on the official ClinicalTrials.gov record. Page updated July 2026.