Clinical trial · Interventional
Methotrexate and Etoposide Infusions Into the Fourth Ventricle in Children with Recurrent Posterior Fossa Brain Tumors
Combination Intraventricular Chemotherapy Pilot Study: Methotrexate and Etoposide Infusions Into the Fourth Ventricle or Resection Cavity in Children with Recurrent Posterior Fossa Brain Tumors
- 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)
The goal of this clinical research study is to establish the safety of simultaneous infusions of methotrexate and etoposide into the fourth ventricle of the brain or resection cavity in patients with recurrent malignant posterior fossa brain tumors. These tumors include medulloblastoma, ependymoma, atypical teratoid/rhabdoid tumor or other malignant brain tumor with recurrence or progression involving anywhere in the brain and/or spine. Patients' disease must have originated in the posterior fossa of the brain.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Brain Tumor Recurrent | — | UNRESOLVED | — |
Interventions
Interventions (3)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Etoposide | Drug | Etoposide | ALIAS |
| Methotrexate | Drug | Methotrexate | ALIAS |
| Ommaya Reservoir | Procedure | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Methotrexate / Etoposide Infusion
- description
- 12 infusions of intraventricular Methotrexate and 15 infusions of intraventricular Etoposide into implanted fourth ventricle catheter/Ommaya reservoir following surgical catheter placement into fourth ventricle. Methotrexate will be infused twice weekly for 6 weeks and etoposide will be infused 5 times a week on weeks 1, 3 , and 5.
- interventionNames
- Drug: Methotrexate
- Drug: Etoposide
- Procedure: Ommaya Reservoir
Primary outcomes (1)
- measure
- Number of patients with grade 3 through grade 5 new neurological adverse events that are related to study drug, graded according to NCI CTCAE Version 4.0
- timeFrame
- 4 months
- description
- New neurological deficit defined as new cranial neuropathy, nystagmus, change in mental status, motor deficit or cerebellar finding (ataxia, dysmetria, dysdiadochokinesis) that is attributed by treating physicians to intraventricular methotrexate and etoposide infusions. Primary endpoint for basis of safety monitoring is acute toxicity occurring at any time within 30 days of receiving the intraventricular methotrexate and etoposide infusion. Rate of acute toxicity monitored using Bayesian method of Thall and Sung. Method of Kaplan and Meier used to estimate unadjusted distributions of time to a neurological deficit and progression free survival time and summary statistic of all variable computed and tabulated
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 1 Year
- Maximum age
- 80 Years
Show eligibility criteria text
Inclusion Criteria: * Age 1 - 80 years at time of recurrence or progression * Diagnosis: Patients with histologically verified medulloblastoma, ependymoma, or atypical teratoid/rhabdoid tumor or other malignant brain tumor with recurrence or progression involving anywhere in the brain and/or spine. To be eligible, patients' disease must have originated in the posterior fossa of the brain * Patient must have either measurable or evaluable tumor as assessed by MRI of the brain and total spine * An implanted catheter in the fourth ventricle or posterior fossa tumor cavity attached to an Ommaya reservoir or agreement to have one placed. * A minimum of 7 days between last dose of systemic chemotherapy and/or radiation therapy and first infusion of chemotherapy into fourth ventricle * Life expectancy of at least 12 weeks in the opinion of the PI * Lansky score of 50 or greater if ≤16 years of age or Karnofsky score of 50 or greater if \> 16 years of age * Existing neurological deficits must have been stable for a minimum of 1 week prior to study enrollment * Patients must have recovered from the acute toxic effects of all prior anticancer chemotherapy * Adequate bone marrow function defined by peripheral absolute neutrophil count (ANC) ≥ 500/µL, platelet count ≥ 50,000/µL (transfusion independent), and hemoglobin ≥ 9.0 gm/dL (may receive Red Blood Cell transfusions) * Patient or patient's legal representative, parent(s), or guardian able to provide written informed consent. Exclusion Criteria: * Enrolled in another treatment protocol * Has received another investigational or chemotherapy agent or radiation therapy within 7 days prior to intraventricular chemotherapy infusions * Evidence of untreated infection * Pregnant or lactating women
References
Publications (0)
Data not yet available