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EORTC-2427-BTG: 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)

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-519404-27-00
Acronym
EORTC-2427-BTG
Enrollment
247
Registered
2025-11-04
Start date
2026-01-16
Completion date
Unknown
Last updated
2025-11-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

​​IDH-mutant grade 2 or 3 astrocytoma​

Brief summary

The primary endpoint is PFS, as assessed locally from the date of enrolment using the RANO 2.0 criteria.

Detailed description

PFS by retrospective central radiological assessment from the date of enrolment using the RANO 2.0 criteria., PFS from the start of radiotherapy (both local and retrospective central radiological assessment) using RANO 2.0 criteria., OS from date of enrolment., Best response, overall response, disease control and complete response rate (both local and retrospective central radiological assessment) as well as duration of response using RANO 2.0 criteria., TTNI, Safety according to the CTCAE (NCI Common Terminology Criteria for Adverse Events) Version 5.0., HRQoL will be assessed, Neurological symptoms and signs, assessed using the NANO scale and measured by neurological progression-free survival (NPFS) and Seizure Control Composite Score Index., Neurocognitive function, as assessed by a test battery consisting of HVLT-R, TMT, COWA test, and MOS scale

Interventions

DRUGPlacebo tablets to match S95032 drug product are supplied as film-coated tablets for oral administration.

Sponsors

Europese Organisatie Voor Onderzoek En Behandeling Van Kanker Organisation Europeenne Pour La Recherche Et Le Traitement Du Cancer European Organi
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
The primary endpoint is PFS, as assessed locally from the date of enrolment using the RANO 2.0 criteria.

Secondary

MeasureTime frame
PFS by retrospective central radiological assessment from the date of enrolment using the RANO 2.0 criteria., PFS from the start of radiotherapy (both local and retrospective central radiological assessment) using RANO 2.0 criteria., OS from date of enrolment., Best response, overall response, disease control and complete response rate (both local and retrospective central radiological assessment) as well as duration of response using RANO 2.0 criteria., TTNI, Safety according to the CTCAE (NCI Common Terminology Criteria for Adverse Events) Version 5.0., HRQoL will be assessed, Neurological symptoms and signs, assessed using the NANO scale and measured by neurological progression-free survival (NPFS) and Seizure Control Composite Score Index., Neurocognitive function, as assessed by a test battery consisting of HVLT-R, TMT, COWA test, and MOS scale

Countries

Austria, Belgium, Czechia, France, Germany, Italy, Netherlands, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026