Phase 1/2 Study of Mirdametinib + Vinblastine for Newly Diagnosed/Previously Untreated PLGG + Activation of MAPK

NCT06666348 · Status: RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2026-02-19

No results posted yet for this study

Summary

This is a 3-part open-label study (feasibility phase, treatment phase and follow-up phase) of orally administered mirdametinib in combination with intravenous vinblastine chemotherapy in patients with PLGG with activation of MAPK pathway.

Feasibility Phase:

The maximum tolerated/recommended phase 2 dose (MTD/RP2D) of the mirdametinib plus vinblastine combination will be assessed using a modified Rolling-6 design.

Treatment Phase:

Patients will receive mirdametinib twice daily (continuously) at a fixed dose (2mg/m2 po BID up to 4 mg BID) for a total of 13 cycles (28 days cycle). Weekly intravenous vinblastine at MTD will be given for a total of 17 cycles. If adverse events occur, two dose reductions are allowed.

Follow-up Phase:

Following the end of treatment, patients will be scheduled for a follow-up visit every 6 months for 36 months to evaluate PFS, TTP and OS.

Conditions

  • Pediatric Low-grade Glioma

Interventions

DRUG

Mirdametinib

Participants will receive orally administered mirdametinib in combination with intravenous vinblastine chemotherapy

Sponsors & Collaborators

  • St. Justine's Hospital

    lead OTHER

Principal Investigators

  • Sébastien Perreault, M.D, FRCPC · CHU Sainte Justine, URCHOI Department

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
2 Years
Max Age
25 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-01-12
Primary Completion
2030-04-30
Completion
2033-04-30
FDA Drug
Yes

Countries

  • Canada

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06666348 on ClinicalTrials.gov