A Study to Compare Treatment With the Drug Selumetinib Alone Versus Selumetinib and Vinblastine in Patients With Recurrent or Progressive Low-Grade Glioma

Running, not enrolling · Phase 3

Conditions studied: Recurrent Low Grade Astrocytoma, Recurrent WHO Grade 2 Glioma, Refractory Low Grade Astrocytoma, Refractory Low Grade Glioma, Refractory WHO Grade 1 Glioma

In brief

This phase III trial investigates the best dose of vinblastine in combination with selumetinib and the benefit of adding vinblastine to selumetinib compared to selumetinib alone in treating children and young adults with low-grade glioma (a common type of brain cancer) that has come back after prior treatment (recurrent) or does not respond to therapy (progressive). Selumetinib is a drug that works by blocking a protein that lets tumor cells grow without stopping. Vinblastine blocks cell growth by stopping cell division and may kill cancer cells. Giving selumetinib in combination with vinblastine may work better than selumetinib alone in treating recurrent or progressive low-grade glioma.

Key facts

Study ID

NCT04576117

Run by

National Cancer Institute (NCI)

People needed

300

Starts

2021-02-16

Expected to finish

2026-12-30

Last updated by the study team

2026-07-02

Who can join

Age: 2 and older, up to 25. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Feasibility phase: patients must be >= 2 years and =< 21 years of age at the time of enrollment
• Efficacy phase: patients must be >= 2 years and =< 25 years of age at the time of enrollment
• All patients > 21 years of age at the time of enrollment must have had initial diagnosis of low-grade glioma by 21 years of age
• Patients must have a body surface area (BSA) of >= 0.5 m\^2 at enrollment
• Patients must have eligibility confirmed by rapid central pathology and central molecular screening reviews performed on APEC14B1
• Non-neurofibromatosis type 1 (non-NF1), non-tuberous sclerosis complex (non-TSC) low-grade glioma (LGG) without a BRAFV600E or IDH1 mutation
• Patients must have progressive or recurrent LGG. Note: Biopsy may be at either initial diagnosis or recurrence
• Patients must have measurable disease, defined as having a two-dimensional measurable tumor volume of >= 1 cm\^2
• Tumor size will be measured to include both solid and cystic components of the tumor (whether or not tumor is enhancing) + fluid attenuated inversion recovery (FLAIR) signal
• Eligible histologies will include all tumors considered low-grade glioma or low-grade astrocytoma (World Health Organization [WHO] grade 1 and II) by the WHO Classification of Tumors of the Central Nervous System - 4th Edition Revised, with the exception of subependymal giant cell astrocytoma
• Patients with metastatic disease or multiple independent primary LGGs are eligible
• Patients must be progressive or recurrent after having been treated with at least one prior tumor-directed therapy before enrollment
• Patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study
• Myelosuppressive chemotherapy: Must not have received within 2 weeks of entry onto this study (4 weeks if prior nitrosourea);
• Biologic (anti-neoplastic agent): At least 7 days since the completion of therapy with a biologic agent;
• Radiation therapy (RT): >= 2 weeks (wks) for local palliative RT (small port); >= 6 months must have elapsed if prior craniospinal RT or if >= 50% radiation of pelvis; >= 6 wks must have elapsed if other substantial bone marrow (BM) radiation;
• Antibodies: >= 21 days must have elapsed from infusion of last dose of antibody, and toxicity related to prior antibody therapy must be recovered to =< grade 1;
• MEK inhibitor or vinblastine: Must not have received treatment with a MEK inhibitor or vinblastine within 6 months of study enrollment
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m\^ 2 or a serum creatinine based on age/sex as follows (within 7 days prior to enrollment):
• 2 to < 6 years: 0.8 mg/dL (male) 0.8 mg/dL (female)
• 6 to < 10 years: 1 mg/dL (male) 1 mg/dL (female)
• 10 to < 13 years: 1.2 mg/dL (male) 1.2 mg/dL (female)
• 13 to < 16 years: 1.5 mg/dL (male) 1.4 mg/dL (female)
• >= 16 years: 1.7 mg/dL (male) 1.4 mg/dL (female)
• Total bilirubin =< 1.5 x upper limit of normal (ULN) for age (within 7 days prior to enrollment) (children with a diagnosis of Gilbert's syndrome will be allowed on study regardless of their total and indirect [unconjugated] bilirubin levels as long as their direct [conjugated] bilirubin is < 3.1 mg/dL)

You may not qualify if…

• Prior therapy with vinblastine and/or a MEK inhibitor is permitted, with the following exceptions:
• Patients must not have had progressive disease while on therapy with vinblastine or a MEK inhibitor;
• Patients must not have discontinued vinblastine or selumetinib due to toxicity
• Patients with a concurrent malignancy or history of treatment (other than surgery) for another tumor within the last year are ineligible
• Patients with diffuse intrinsic pontine tumors as seen on MRI (> 2/3 of pons involvement on imaging) are not eligible even if biopsy reveals grade I/II histology
• Patients may not be receiving any other investigational agents
• Patients must not have known hypersensitivity to selumetinib, vinblastine, or similar compounds
• CYP3A4 agents: Patients must not have received fluconazole or drugs that are strong inducers or inhibitors of CYP3A4 within 7 days prior to study enrollment
• Patients with any serious medical or psychiatric illness/condition, including substance use disorders or ophthalmological conditions, likely in the judgment of the investigator to interfere or limit compliance with study requirements/treatment
• Patients who, in the opinion of the investigator, are not able to comply with the study procedures are not eligible
• PRE-EXISTING CONDITIONS (CARDIAC):
• Known genetic disorder that increases risk for coronary artery disease. Note: The presence of dyslipidemia in a family with a history of myocardial infarction is not in itself an exclusion unless there is a known genetic disorder documented;
• Symptomatic heart failure
• New York Heart Association (NYHA) class II-IV prior or current cardiomyopathy
• Severe valvular heart disease
• History of atrial fibrillation
• PRE-EXISTING CONDITIONS (OPHTHALMOLOGIC CONDITIONS):
• Current or past history of central serous retinopathy
• Current or past history of retinal vein occlusion or retinal detachment
• Patients with uncontrolled glaucoma
• If checking pressure is clinically indicated, patients with intraocular pressure (IOP) > 22 mmHg or upper limit of normal (ULN) adjusted by age are not eligible
• Any multivitamin containing vitamin E must be stopped prior to study enrollment even if it contains less than 100% of the daily recommended dosing for vitamin E
• Surgery within 2 weeks prior to enrollment, with the exception of a surgical biopsy, placement of a vascular access device or cerebrospinal fluid (CSF) diverting procedure such as endoscopic third ventriculostomy (ETV) and ventriculoperitoneal (VP) shunt
• Note: Patients must have healed from any prior surgery
• Patients who have an uncontrolled infection are not eligible

Where it is running

• Arkansas Children's Hospital — Little Rock, Arkansas, United States
• Loma Linda University Medical Center — Loma Linda, California, United States
• Children's Hospital Los Angeles — Los Angeles, California, United States
• Kaiser Permanente-Oakland — Oakland, California, United States
• Children's Hospital of Orange County — Orange, California, United States
• Lucile Packard Children's Hospital Stanford University — Palo Alto, California, United States
• Children's Hospital Colorado — Aurora, Colorado, United States
• Connecticut Children's Medical Center — Hartford, Connecticut, United States
• Yale University — New Haven, Connecticut, United States
• Alfred I duPont Hospital for Children — Wilmington, Delaware, United States
• Children's National Medical Center — Washington D.C., District of Columbia, United States
• Golisano Children's Hospital of Southwest Florida — Fort Myers, Florida, United States
• UF Health Cancer Institute - Gainesville — Gainesville, Florida, United States
• Memorial Regional Hospital/Joe DiMaggio Children's Hospital — Hollywood, Florida, United States
• Nemours Children's Clinic-Jacksonville — Jacksonville, Florida, United States
• Arnold Palmer Hospital for Children — Orlando, Florida, United States
• Nemours Children's Hospital — Orlando, Florida, United States
• Johns Hopkins All Children's Hospital — St. Petersburg, Florida, United States
• Saint Joseph's Hospital/Children's Hospital-Tampa — Tampa, Florida, United States
• Children's Healthcare of Atlanta - Arthur M Blank Hospital — Atlanta, Georgia, United States
• Saint Luke's Cancer Institute - Boise — Boise, Idaho, United States
• Lurie Children's Hospital-Chicago — Chicago, Illinois, United States
• University of Illinois — Chicago, Illinois, United States
• University of Chicago Comprehensive Cancer Center — Chicago, Illinois, United States
• Children's Hospital of Alabama — Birmingham, Alabama, United States

Full record on ClinicalTrials.gov

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