A Phase 1 interventional study of Everolimus and Trametinib in Recurrent World Health Organization (WHO) Grade II Glioma, Low-grade Glioma and High-Grade Glioma (HGG), sponsored by University of California, San Francisco. Recruiting at 17 sites in United States. Open to participants aged 1 Year to 25 Years. Per ClinicalTrials.gov, last updated 2026-08-18.
Sponsored by University of California, San Francisco · Phase 1, Interventional, and Treatment
This phase I trial studies the side effects and best dose of trametinib and everolimus in treating pediatric and young adult patients with gliomas that have come back (recurrent). Trametinib acts by targeting a protein in cells called MEK and disrupting tumor growth. Everolimus is a drug that may block another pathway in tumor cells that can help tumors grow. Giving trametinib and everolimus may work better to treat low and high-grade gliomas compared to trametinib or everolimus alone.
PRIMARY OBJECTIVES:
I. To estimate the recommended phase 2 dose (RP2D) of trametinib given orally in combination with everolimus in pediatric and young adult patients with gliomas.
II. To describe the toxicity profile and define the dose limiting toxicities (DLTs) of the combination of trametinib and everolimus in pediatric and young adult patients with recurrent low-grade gliomas (LGG) or high-grade glioma (HGG).
III. To characterize the pharmacokinetic profile of trametinib and everolimus when given in combination.
EXPLORATORY OBJECTIVES:
I. To describe the objective response rate and the 2-year progression-free survival (PFS) of LGGs to this therapy in the context of a phase I study.
II. To assess quality of life (QOL) and cognitive measures in pediatric and young adult patients with LGG or HGG.
III. To identify potential predictive biomarkers to targeted therapy in pediatric and young adult patients with LGGs.
IV. To assess endocrine outcomes in pediatric and young adult patients with LGGs.
V. To explore magnetic resonance (MR) quantitative measures of relative cerebral blood volume, permeability and apparent diffusion coefficient within the region of hyperintensity on T2-weighted images as markers of disease response and/or progression in comparison to institutional evaluation of disease response and/or progression and quantitative measures of tumor response as determined by central review (based upon both area and volumetric measures).
OUTLINE: This is a dose-escalation study.
Patients receive a combination of trametinib orally (PO) and everolimus in either of two dosing scheduled (continuous and intermittent). Treatment repeats every 28 days for up to 26 cycles in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at 30 days, every 3 months for 1 year, then every 6 months for 5 years from the start of therapy.
1,397 studies on the registry are indexed under Glioma; 351 are open to participants now.
This study's planned enrollment of 50 is above the median of 32 across 1,065 interventional studies indexed under Glioma.
Browse Glioma studies →University of California, San Francisco is the lead sponsor of 2,132 studies on the registry; 375 are open to participants now.
Of its 262 completed or terminated interventional studies of FDA-regulated products, 196 (75%) have results posted.
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Participants must have histologically confirmed diagnosis of an LGG (WHO grade I-II) that is recurrent or progressive after prior treatment (biologic, chemotherapy or radiation therapy) or must have a histologically confirmed diagnosis of a high-grade glioma (HGG) (WHO grade III-VI)
For enrollment, snap frozen tissue (150 mg) or 10 unstained 10 um formalin-fixed, paraffin-embedded (FFPE) slides for comprehensive genomic testing or results of prior testing is required
Prior therapy: Participants must have received prior therapy other than surgery and must have fully recovered from the acute toxic effects of all prior chemotherapy, biologics, immunotherapy, or radiotherapy prior to entering this study
Myelosuppressive chemotherapy: Participants must have received their last dose of known myelosuppressive anticancer chemotherapy at least three weeks prior to study registration or at least six weeks if they had received nitrosourea. Biologic agents: Participant must have recovered from any acute toxicity potentially related to the agent and received their last dose of the biologic agent >= 7 days prior to study registration. For biologic agents that have a prolonged half-life, at least three half-lives must have elapsed prior to registration
Creatinine clearance or radioisotope growth factor receptor (rGFR) >= 70 mL/min/1.73 m\^2 or a serum creatinine based on age/gender as follows:
Hypertension
Exclusion Criteria:
Participant is receiving any of the following medications within 7 days prior to enrollment (If participants require (re)initiation of these agents after enrollment and prior to start of therapy they will not be eligible to initiate study therapy):
Women of childbearing potential who are pregnant or breast-feeding
Patients receive dosing per their assigned dose level. Treatment repeats every 28 days for up to 26 cycles in the absence of disease progression or unacceptable toxicity.
Drug: Everolimus · Drug: Trametinib
Given PO
Also known as: 42-O-(2-Hydroxy)ethyl Rapamycin, Afinitor, Certican, RAD 001, RAD001, Votubia, Zortress
Given PO
Also known as: GSK1120212, JTP-74057, MEK Inhibitor GSK1120212, Mekinist
Maximum tolerated dose (MTD) of trametinib in combination with everolimus for both continuous and intermittent dosing schedules
We will employ the Bayesian optimal interval (BOIN) design to find the MTD for both continuous and intermittent dosing schedules. The BOIN design is implemented in a simple way similar to the traditional 3+3 design, but is more flexible and possesses superior operating characteristics that are comparable to those of the more complex model-based designs, such as the continual reassessment method (CRM).
Time frame: Up to 28 days
Incidence of adverse events for both continuous and intermittent dosing schedules
Toxicities will be graded based on Common Terminology Criteria for Adverse Events (CTCAE) V5 .0 and followed for 30 days after last treatment or until resolution or returned to baseline values.
Time frame: Up to 30 days after the last day of treatment
Dose limiting toxicities (DLTs) of the combination for both continuous and intermittent dosing schedules
Any treatment related adverse event during the first cycle of therapy that leads to a dose reduction or results in delay of treatment \> 7 days or which results in the permanent cessation of therapy will be considered dose limiting.
Time frame: Up to 28 days
Recommended phase 2 dose (RP2D)
The RP2D rate is selected based on isotonic regression as specified in Liu and Yuan (2015). This computation is implemented by the shiny app "BOIN" available at http://www.trialdesign.org. Specifically, select as the RP2D the dose for which the isotonic estimate of the toxicity rate is closest to the target toxicity rate.
Time frame: Up to 28 days
Maximum Concentration (Cmax) of trametinib and everolimus
Plasma trametinib and everolimus concentration-time data will be analyzed using a classic non-compartmental approach and/or population-based compartmental methods using non-linear mixed effects modeling. Individual pharmacokinetic parameters of interest after single and repeated doses (i.e., maximum plasma concentration Cmax from 0 to 24h will be calculated from the pharmacokinetic model. Trametinib and everolimus pharmacokinetics after single dose will be compared to trametinib and everolimus pharmacokinetics after repeated doses.
Time frame: Up to 5 years
Area Under the Curve (AUC) of trametinib and everolimus
Plasma trametinib and everolimus concentration-time data will be analyzed using a classic non-compartmental approach and/or population-based compartmental methods using non-linear mixed effects modeling. Individual pharmacokinetic parameters of interest after single and repeated doses (i.e., area under the curve from 0 to 24h will be calculated from the pharmacokinetic model. Trametinib and everolimus pharmacokinetics after single dose will be compared to trametinib and everolimus pharmacokinetics after repeated doses.
Time frame: Up to 5 years
Plan to share: No
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University of California, San Francisco