Vorasidenib Maintenance for IDH Mutant Astrocytoma
Vorasidenib as Maintenance Treatment After First-line Chemoradiotherapy in IDH-mutant Grade 2 or 3 Astrocytoma: a Placebo-controlled, Triple-blind, Randomized Phase III Study (VIGOR)
European Organisation for Research and Treatment of Cancer - EORTC
468 participants
Jan 16, 2026
INTERVENTIONAL
Conditions
Summary
The main goal of VIGOR is to demonstrate that vorasidenib maintenance therapy improves locally assessed progression-free survival (PFS) from enrolment compared to placebo in patients with IDH-mutant, CNS5 WHO Grade 2 or 3 astrocytoma following the completion of first-line chemoradiotherapy. The primary endpoint is Progression-free survival (PFS), as assessed locally from the date of enrolment using the RANO 2.0 criteria. In this a comparative, randomized (1:1), triple blinded, multicentre phase III superiority trial with one stopping rule for efficacy and futility after end of enrolment, participants in the experimental arm will receive vorasidenib orally once daily at a dose of 40 mg in continuous 28-day cycles while participants in the control arm will receive a matched oral placebo once daily in continuous 28-day cycles
Eligibility
Plain Language Summary
Simplified for easier understanding
This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.
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Interventions
Vorasidinib will be administered orally once daily at a dose of 40 mg in continuous 28-day cycles
Matched oral vorasidenib placebo will be administered once daily in continuous 28-day cycles
Locations(33)
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NCT06809322