This is an open label study of everolimus in children with recurrent or progressive low-grade glioma.
This is an open label study of everolimus in children with recurrent or progressive low-grade glioma. All patients will receive everolimus at a dose of 5 mg/m2/dose daily. An adaptive Simon two-stage design for phase 2 studies of targeted therapies will be used to assess the efficacy primary objective. The proposed treatment with everolimus will be deemed not worthy of further investigation in this patient population if the true PFS at 6-months (PFS6) is less than 50%. If in the first stage, with a combined sample size of 25, there is preliminary evidence to suggest efficacy of everolimus is restricted to patients with PI3K/AKT/mTOR activation as measured by p-S6 positivity, a total of 45 patients will be enrolled and the design will have 81% statistical power to detect a true disease stabilization rate ≥70%. If in the first stage there is preliminary evidence to suggest efficacy of everolimus is independent of PI3K/AKT/mTOR activation, a total of 65 patients will be enrolled and the design will have \>95% statistical power to detect a true disease stabilization rate ≥70%.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
65
Everolimus tablet will be taken daily by mouth with water. All participants will be given a dose of 5 mg/m2/dose daily.
Children's Hospital Los Angeles
Los Angeles, California, United States
University of California, Los Angeles
Percentage of Participants With Progression Free Survival at 6 Months
Response was be determined by bi-dimensional diameters. RECIST criteria will be collected and used for secondary evaluation. Patients will have brain MRI scans with and without gadolinium performed prior to therapy, after every second course in the first year, after every third course in the second year, and at the End of Study visit (if not done within prior 3 months). Spine MRIs should be performed prior to therapy and at the same time points as standard brain MRIs if clinically indicated.
Time frame: Up to 6 months
Proportion of Participants With Objective Response
The proportion of participants who demonstrated a complete or partial response as defined by Response Evaluation Criteria in Solid Tumors (RECIST) v1 Criteria where Complete Response (CR) is defined as the complete disappearance of all known disease for \>=8 weeks. Complete response is dated from time all lesions have disappeared on a stable or decreasing dose of corticosteroids. A Partial Response (PR) is a reduction of at least 50% in the size of all measurable tumor as quantitated by sum of the products of the largest diameters (SLD) of measurable lesions and maintained for \>=8 weeks on a stable or decreasing dose of corticosteroids. Partial response is dated from the time of first observation. Overall response also takes into account the response in both the target and non-target lesion, and the appearance of new lesions, where applicable and depend on the achievement of both measurement and confirmation criteria.
Time frame: Up to 6 months
Median Progression Free Survival in Recurrent Pediatric Low-grade Glioma (LGGs)
Progression free survival will be calculated from date of first treatment to the date of first observation of progressive disease, non-reversible neurological progression or increasing steroid requirements (applies to stable disease only), death due to any cause, or early discontinuation of treatment
Time frame: Up to 5 years
Median Overall Survival From Time of Diagnosis
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Los Angeles, California, United States
Children's Hospital Oakland
Oakland, California, United States
University of California, San Diego Rady Children's Hospital
San Diego, California, United States
University of California, San Francisco
San Francisco, California, United States
Children's National Medical Center
Washington D.C., District of Columbia, United States
University of Florida
Gainesville, Florida, United States
Ann & Robert H. Lurie Children's Hospital of Chicago
Chicago, Illinois, United States
Johns Hopkins University
Baltimore, Maryland, United States
Dana-Farber Cancer Institute
Boston, Massachusetts, United States
...and 8 more locations
Overall survival in participants with recurrent pediatric low-grade glioma (LGGs) will be calculated from date of original diagnoses to death using Kaplan Meier method. Median time to death and 95% confidence interval will be reported.
Time frame: Up to 5 years
Median Overall Survival From Time of Enrollment
Overall survival in participants with recurrent pediatric low-grade glioma (LGGs) will be calculated from date of study registration to death using Kaplan Meier method. Median time to death and 95% confidence interval will be reported.
Time frame: Up to 5 years