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Clinical Trial Summary

The goal of this study is to determine the efficacy of the study drugs ribociclib and everolimus to treat pediatric and young adult patients newly diagnosed with a high-grade glioma (HGG), including DIPG, that have genetic changes in pathways (cell cycle, PI3K/mTOR) that these drugs target. The main question the study aims to answer is whether the combination of ribociclib and everolimus can prolong the life of patients diagnosed with HGG, including DIPG.


Clinical Trial Description

This is a multicenter, international, phase II study of post-radiotherapy (RT) combination of ribociclib and everolimus to treat pediatric, adolescent, and young adult patients newly diagnosed with HGG and DIPG that harbor alterations of the cell cycle and/or PI3K/mTOR pathways to assess treatment efficacy (Part 2). The study will include a feasibility cohort (Part 1) to identify the dose of ribociclib PfOS (Powder for Oral Suspension) that is safe and tolerable in combination with everolimus. Efficacy for Part 2 study will be defined by progression-free survival (PFS; HGG [stratum A]) and Overall Survival (OS; DIPG [stratum B]), with key longitudinal biomarker correlatives. Outcomes among patients with primary thalamic, spinal cord, and/or secondary (radiation related) HGG (strata C) will be descriptively analyzed. Objective radiographic response rates and agent-specific toxicities will also be assessed, with a feasibility cohort to determine the recommended phase II dose (RP2D) of the combination of ribociclib and everolimus in patients with metastatic disease who received upfront craniospinal irradiation (stratum D). Protocol therapy with the maintenance combination of ribociclib and everolimus must begin no later than 35 calendar days post-completion of RT. The earliest patients can begin protocol treatment is 28 calendar days post-completion of RT. Each cycle will be 28 days in duration and treatment can continue up to a total of 26 cycles. Ribociclib will be given orally once daily for 3 weeks (days 1-21), with one week off. Everolimus will be given orally daily continuously (days 1-28). ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05843253
Study type Interventional
Source Nationwide Children's Hospital
Contact Leonie Mikael, PhD
Phone 16147223284
Email leonie.mikael@nationwidechildrens.org
Status Not yet recruiting
Phase Phase 2
Start date May 30, 2024
Completion date May 30, 2034

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