Clinical trial · Interventional
Arginine and Whole Brain Radiation Therapy for the Treatment of Patients With Brain Metastases
Arginine With Whole Brain Radiation Therapy for the Treatment of Brain Metastases
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
This early phase I trial evaluates different administration techniques (oral or intravenous) for arginine and tests the safety of giving arginine with whole brain radiation therapy in patients who have cancer that has spread from where it first started (primary site) to the brain (brain metastases). Arginine is an essential amino acid. Amino acids are the molecules that join together to form proteins in the body. Arginine supplementation has been shown to improve how brain metastases respond to radiation therapy. The optimal dosing of arginine for this purpose has not been determined. This study measures the level of arginine in the blood with oral and intravenous dosing at specific time intervals before and after drug administration to determine the best dosing strategy.
Conditions
Conditions (2)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Metastatic Malignant Neoplasm in the Brain | Brain Neoplasm | PROBABILISTIC | 0.70 |
| Metastatic Malignant Solid Neoplasm | Malignant Solid Neoplasm | CURATED_BROADER | 0.78 |
Interventions
Interventions (6)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Arginine | Dietary Supplement | — | UNRESOLVED |
| Biospecimen Collection | Procedure | — | UNRESOLVED |
| Computed Tomography | Procedure | — | UNRESOLVED |
| Magnetic Resonance Imaging | Procedure | — | UNRESOLVED |
| Spectroscopy | Procedure | — | UNRESOLVED |
| Whole-Brain Radiotherapy | Radiation | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Arm A (IV L-arginine, WBRT)
- description
- Patients receive L-arginine IV over 10-20 minutes followed by WBRT approximately 1 hour later for up to 10 days of treatment over 2 weeks in the absence of disease progression or unacceptable toxicity. Patients also undergo CT at screening, undergo collection of blood samples and spectroscopy on study, and undergo MRI at screening and follow up.
- interventionNames
- Dietary Supplement: Arginine
- Procedure: Biospecimen Collection
- Procedure: Computed Tomography
- Procedure: Magnetic Resonance Imaging
- Procedure: Spectroscopy
- Radiation: Whole-Brain Radiotherapy
- type
- EXPERIMENTAL
- label
- Arm B (oral L-arginine, WBRT)
- description
- Patients receive L-arginine PO followed by WBRT approximately 1 hour later for up to 10 days of treatment over 2 weeks in the absence of disease progression or unacceptable toxicity. Patients also undergo CT at screening, undergo collection of blood samples and spectroscopy on study, and undergo MRI at screening and follow up.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Diagnosis of brain metastases from any primary cancer * Planned to undergo whole-brain radiation therapy (Hippocampal avoidant is ok) * No systemic anti-neoplastic agent concurrent with WBRT (memantine is ok) * Not inpatient at the time of treatment start * Age 18 or older * Able to consent for self Exclusion Criteria: * Patient unwilling/unable to receive daily arginine treatment (IV or oral) for the 10 days of WBRT * Systemic therapy continuing during WBRT * Creatinine \> 1.5 x the upper limit of normal * Alanine aminotransferase (ALT) \> 6x the upper limit of normal * Patient planned to be treated as an inpatient * Age \< 18 years * Adult not able to consent for self * Pregnant * Prisoners * Cognitively impaired/impaired decision-making capacity
References
Publications (0)
Data not yet available