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BRain-AVOidant Proton Craniospinal Irradiation for Leptomeningeal Metastases From Solid Tumor Malignancies

A Phase II Study Assessing the Efficacy of BRain-AVOidant Proton Craniospinal Irradiation (CSI) for Leptomeningeal Metastases (LM) From Solid Tumor Malignancies (BRAVO-LM)

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07789912
Acronym
BRAVO-LM
Enrollment
40
Registered
2026-08-27
Start date
2026-10-01
Completion date
2030-10-01
Last updated
2026-09-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer, Leptomeningeal Metastasis, Lung Cancer (NSCLC)

Keywords

breast cancer, lung cancer, leptomeningeal metastasis, craniospinal irradiation

Brief summary

The purpose of this study is to determine the efficacy of BRain-AVOidant proton craniospinal irradiation (BRAVO pCSI) in adult participants with leptomeningeal metastases from solid tumors.

Interventions

RADIATIONRadiation Treatments Using Brain- Avoidant Proton Craniospinal Irradiation (BRAVO- pCSI)

Participants with Leptomeningeal Metastases (LM) from breast or non-small cell lung cancer will be included in Group 1 (20 evaluable participants). Participants with LM from solid tumors of other histologies will be included in Group 2 (10 evaluable participants). All participants in Groups 1 and 2 will receive Brain-Avoidant Proton Craniospinal Irradiation (BRAVO-pCSI) at a prescribed dose of 30 Gy (Cobalt Gray Equivalent \[CGE\]) delivered in 10 fractions. Protocol treatment must begin within 21 days of study enrollment and will be delivered over approximately 2 weeks.

Sponsors

University of Miami
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Participants with leptomeningeal metastases established radiographically and/or through Cerebrospinal Fluid (CSF) cytology or circulating tumor cells (CTCs). Participants may have newly diagnosed or recurrent LM. 2. Pathologically confirmed breast or non-small cell lung cancer (NSCLC) primary (group 1 and). Pathologically confirmed solid tumor malignancy (group 2). 3. Participants with adequate bone marrow function. 4. Participants with a Karnofsky Performance Status (KPS) ≥ 60. 5. Male and female participants ages ≥ 18 years. 6. Female participants must be of either non-childbearing potential OR must agree to practice an effective contraceptive method. 7. Male participants must be of either non-childbearing potential OR must agree to practice an effective contraceptive method.

Exclusion criteria

1. Participants with metastases within the memory-avoidance structures (hippocampus, corpus callosum, fornix, amygdala) that preclude developing a treatment plan that respects dosimetric constraints for these structures. 2. Participants with multiple, serious major neurologic deficits per physician/investigator assessment including encephalopathy. 3. Participants with extensive systemic disease and without reasonable systemic treatment options. 4. Participants unable to undergo MRI brain and spine with gadolinium contrast. 5. Participants who have had radiation therapy to the spinal cord with equivalent dose in 2Gy fractions (EQD2) more than 40Gy or cauda equina with EQD2 more than 50Gy using α/β of 3. 6. Female participants who are pregnant or lactating. 7. Participants with impaired decision-making capacity.

Design outcomes

Primary

MeasureTime frameDescription
Central Nervous System Progression Free Survival (CNS PFS)Up to 1.5 yearsCentral Nervous System Progression Free Survival (CNS PFS) is defined as the elapsed time from start of brain-avoidant pCSI until the date of first event of CNS disease progression or death.

Secondary

MeasureTime frameDescription
Mean Symptom Severity Score (MDASI-SP)Up to 1.5 yearsMean score on the symptom severity subscale of the MD Anderson Symptom Inventory-Spine Tumor (MDASI-SP). Scores range from 0 to 10, with higher scores indicating greater symptom severity.
Mean Disease-Specific Symptom Score (MDASI-SP)Up to 1.5 yearsMean score on the spine tumor-specific symptom subscale of the MD Anderson Symptom Inventory-Spine Tumor (MDASI-SP). Scores range from 0 to 10, with higher scores indicating greater symptom burden
Mean Symptom Interference Score (MDASI-SP)Up to 1.5 yearsMean score on the symptom interference subscale of the MD Anderson Symptom Inventory-Spine Tumor (MDASI-SP). Scores range from 0 to 10, with higher scores indicating greater symptom interference.
Overall Survival (OS) after brain-avoidant pCSIUp to 1.5 yearsOverall Survival (OS) is defined as the elapsed time from start of brain-avoidant pCSI until date of death from any cause.
Treatment Response Rate After Brain-Avoidant Proton Craniospinal Irradiation (BRAVO-pCSI)Up to 1.5 yearsResponse rate is defined as the proportion of participants showing best responses per Response Assessment in Neuro-Oncology Leptomeningeal Metastases (RANO LM) criteria.
Evaluation of the Safety And Tolerability of Brain-Avoidant Proton Craniospinal Irradiation (BRAVO-pCSI)Up to 1.5 yearsIncidence of adverse events (AEs) and serious adverse events (SAEs) related to brain-avoidant pCSI, as assessed using the NCI CTCAE Version 5.0.
Rate of Cognitive Failure After Brain-Avoidant Proton Craniospinal Irradiation (BRAVO-pCSI)3 monthsCognitive failure measured via the reliable change index (RCI) after BRAVO pCSI.
Patient-Reported DepressionUp to 1.5 yearsDepression will be assessed using the Center for Epidemiologic Studies Depression Scale (CES-D). Total scores range from 0 to 60, with higher scores indicating greater depressive symptoms.
Patient-Reported FatigueUp to 1.5 yearsFatigue will be assessed using the Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) Subscale Version 4 (Items 1-13). Total scores range from from 0 to 52, with higher scores indicating less fatigue.
Mean Symptom Severity Score (MDASI-BT)Up to 1.5 yearsMean score on the symptom severity subscale of the MD Anderson Symptom Inventory-Brain Tumor (MDASI-BT). Scores range from 0 to 10, with higher scores indicating greater symptom severity.
Mean Symptom Interference Score (MDASI-BT)Up to 1.5 yearsMean score on the symptom interference subscale of the MD Anderson Symptom Inventory-Brain Tumor (MDASI-BT). Scores range from 0 to 10, with higher scores indicating greater symptom interference.
Mean Disease-Specific Symptom Score (MDASI-BT)Up to 1.5 yearsMean score on the brain tumor-specific symptom subscale of the MD Anderson Symptom Inventory-Brain Tumor (MDASI-BT). Scores range from 0 to 10, with higher scores indicating greater symptom burden.

Countries

United States

Contacts

CONTACTMorgan Freret, MD
mfreret@miami.edu(305) 243-5470
CONTACTMarkus Bredel, MD
mbredel@miami.edu(305) 243-4263
PRINCIPAL_INVESTIGATORMorgan Freret, MD

University of Miami Miller School of Medicine-Sylvester Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 2, 2026