Recurrent Ependymoma Clinical Trial
— 5-AZAOfficial title:
Infusion of 5-Azacytidine (5-AZA) Into the Fourth Ventricle or Resection Cavity in Children and Adults With Recurrent Posterior Fossa Ependymoma: A Phase I Study
This study seeks to determine the optimum dose frequency of 5-Azacytidin (5-AZA) infusions into the fourth ventricle of the brain. The study's primary objective is to establish the maximum tolerated dose for infusions of 5-Azacytidine into the fourth ventricle in patients with recurrent ependymoma. The study's secondary objective is to assess the antitumor activity of 5-Azacytidine infusions into the fourth ventricle based upon imaging studies and cytology.
Status | Recruiting |
Enrollment | 9 |
Est. completion date | December 1, 2025 |
Est. primary completion date | December 1, 2025 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 1 Year to 80 Years |
Eligibility | Inclusion Criteria: - Diagnosis: Patients with histologically verified ependymoma, with recurrence or progression anywhere in the brain and/or spine. Patients are also eligible if they have refractory disease, which will be defined as residual tumor which has not been completely cleared despite prior treatments. 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 a ventricular access device 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 5-AZA into fourth ventricle - Life expectancy of at least 12 weeks in the opinion of the principal investigator - 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 RBC 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 5-AZA infusion into the fourth ventricle - Evidence of untreated infection - Pregnant or lactating women |
Country | Name | City | State |
---|---|---|---|
United States | The University of Texas Health Science Center at Houston | Houston | Texas |
Lead Sponsor | Collaborator |
---|---|
The University of Texas Health Science Center, Houston |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Number of participants who experienced dose-limiting toxicity (DLT) | Dose-limiting toxicity will be defined as any of the following events:
New neurological deficit (grade 3 or higher) probably or definitely attributed to intraventricular 5-azacytidine infusions. New adverse event involving any organ probably or definitely attributed to intraventricular 5-azacytidine infusions with the specific exclusion of: Grade 3 or higher nausea and vomiting < 3 days duration and grade 3 or higher headache < 3 days duration. |
8 weeks | |
Secondary | Number of participants with disease progression as assessed by magnetic resonance imaging (MRI) | The PI and radiologist will determine Response to treatment according to the following three categories. Disease progression corresponds with the "Progressive Disease" category.
Complete Response (CR): Disappearance of all non-target lesions. Stable Disease (SD) / Incomplete Response (IR): The persistence of one or more non-target lesions. Progressive Disease (PD): The appearance of one or more new lesions and/or unequivocal progression of existing non-target lesions. |
1 day after surgery to remove tumor (which is about 1 week before the first infusion) | |
Secondary | Number of participants with disease progression as assessed by magnetic resonance imaging (MRI) | The PI and radiologist will determine Response to treatment according to the following three categories. Disease progression corresponds with the "Progressive Disease" category.
Complete Response (CR): Disappearance of all non-target lesions. Stable Disease (SD) / Incomplete Response (IR): The persistence of one or more non-target lesions. Progressive Disease (PD): The appearance of one or more new lesions and/or unequivocal progression of existing non-target lesions. |
8 weeks after first infusion |
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