Clinical trial • Phase III • Oncology

VORASIDENIB for IDH-mutant astrocytoma (WHO grade 2 or 3)

Phase III trial of VORASIDENIB for IDH-mutant astrocytoma (WHO grade 2 or 3).

Overview

Trial Therapeutic Area
Oncology
Trial Disease
IDH-mutant astrocytoma (WHO grade 2 or 3)
Trial Stage
Phase III
Drug Modality
Small molecule
Orphan Drug
Yes

Key dates

Initial CTIS Submission Date
10-07-2025
First CTIS Authorization Date
04-11-2025

Trial design

Randomised, vorasidenib (s95032/ag-881) oral film-coated tablet (formulations referenced as 10 mg and 40 mg) versus matching placebo tablets supplied as film-coated oral tablets.-controlled Phase III trial across 27 sites in France, Spain, Netherlands and others.

Randomised
Yes
Comparator
Vorasidenib (S95032/AG-881) oral film-coated tablet (formulations referenced as 10 mg and 40 mg) versus matching placebo tablets supplied as film-coated oral tablets.
Target Sample Size
221

Eligibility

Recruits 221 Vulnerable population flag selected in record. Informed consent is required (Inclusion criterion 1: "Informed consent"). Participants must be adults (Age ≥ 18 years). Subject information and informed consent forms (L1_SIS and ICF) and patient-facing documents are provided in multiple languages; no pediatric assent procedures are described..

Pregnancy Exclusion
11. Women of childbearing potential (WOCBP) must have a negative serum pregnancy test within two weeks prior to enrolment; a serum or urine pregnancy test must be conducted and confirmed negative within 72 hours prior to the first dose of study treatment.
Vulnerable Population
Vulnerable population flag selected in record. Informed consent is required (Inclusion criterion 1: "Informed consent"). Participants must be adults (Age ≥ 18 years). Subject information and informed consent forms (L1_SIS and ICF) and patient-facing documents are provided in multiple languages; no pediatric assent procedures are described.

Inclusion criteria

  • {"criterion_text":"- 1. Informed consent\n- 10. Stable or decreasing corticosteroid dose, or no use of corticoids, for at least 7 days prior to enrolment.\n- 11. Women of childbearing potential (WOCBP) must have a negative serum pregnancy test within two weeks prior to enrolment; a serum or urine pregnancy test must be conducted and confirmed negative within 72 hours prior to the first dose of study treatment.\n- 12. Participants of childbearing / reproductive potential should use two adequate methods of birth control, including a highly effective method and a barrier method during the study treatment period and for at least 90 days after the last dose of treatment.\n- 2. Age ≥ 18 years\n- 3. Integrated diagnosis of astrocytoma, IDH-mutant, CNS5 WHO grade 2 or 3, per local assessment, with documented IDH1 or IDH2 mutation based on local testing of tumour tissue.\n- 4. At least 1 prior surgery for glioma.\n- 5. Completed first-line standard of care radiotherapy (minimum 50.4 Gy, photons or protons allowed) followed by SoC adjuvant chemotherapy (i.e., either 4-12 cycles of temozolomide or 2-6 cycles of PCV).\n- 6. Last chemotherapy dose of first line chemoradiotherapy more than 6 weeks and less than 12 weeks before enrolment.\n- 7. Recovered from any clinically relevant toxicity of the previous chemoradiotherapy unless stable and manageable per investigator´s judgement\n- 8. Adequate bone marrow, renal, and hepatic function, including alanine aminotransferase (ALT) and aspartate aminotransferase (AST) at or below ULN.\n- 9. WHO performance status 0-2"}

Exclusion criteria

  • {"criterion_text":"- 1. Presence of 1p19q co-deletion, per local assessment.\n- 2. Tumour recurrence or progression per RANO 2.0 criteria between first day of radiotherapy and enrolment, per local assessment\n- 3. Any prior or concurrent malignancy whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of the investigational regimen.\n- 4. Integrated diagnosis of astrocytoma, IDH-mutated, CNS5 WHO grade 4\n- 5. Ongoing use of medications that are CYP2C8, CYP2C9, CYP2C19, or CYP3A substrates with a narrow therapeutic index. Participants must be transferred to other medications before receiving the first dose of study drug"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- The primary endpoint is PFS, as assessed locally from the date of enrolment using the RANO 2.0 criteria.","definition_or_measurement_approach":"Progression-free survival (PFS) assessed locally from date of enrolment using RANO 2.0 criteria."}

Secondary endpoints

  • {"endpoint_text":"- PFS by retrospective central radiological assessment from the date of enrolment using the RANO 2.0 criteria.","definition_or_measurement_approach":"Retrospective central radiological assessment of PFS from enrolment using RANO 2.0 criteria."}
  • {"endpoint_text":"- PFS from the start of radiotherapy (both local and retrospective central radiological assessment) using RANO 2.0 criteria.","definition_or_measurement_approach":"PFS measured from start of radiotherapy, assessed both locally and by retrospective central radiological review using RANO 2.0 criteria."}
  • {"endpoint_text":"- OS from date of enrolment.","definition_or_measurement_approach":"Overall survival measured from date of enrolment."}
  • {"endpoint_text":"- 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.","definition_or_measurement_approach":"Radiological response assessments (local and retrospective central) using RANO 2.0 criteria; includes best response, overall response, disease control, complete response rate, and duration of response."}
  • {"endpoint_text":"- TTNI","definition_or_measurement_approach":"Time to next intervention (TTNI)."}
  • {"endpoint_text":"- Safety according to the CTCAE (NCI Common Terminology Criteria for Adverse Events) Version 5.0.","definition_or_measurement_approach":"Adverse events graded per CTCAE v5.0."}
  • {"endpoint_text":"- HRQoL will be assessed","definition_or_measurement_approach":"Health-related quality of life assessments (instruments referenced in patient-facing documents)."}
  • {"endpoint_text":"- Neurological symptoms and signs, assessed using the NANO scale and measured by neurological progression-free survival (NPFS) and Seizure Control Composite Score Index.","definition_or_measurement_approach":"Neurological assessment using the NANO scale; NPFS and Seizure Control Composite Score Index used as measures."}
  • {"endpoint_text":"- Neurocognitive function, as assessed by a test battery consisting of HVLT-R, TMT, COWA test, and MOS scale","definition_or_measurement_approach":"Neurocognitive battery including HVLT-R, Trail Making Test (TMT), COWA, and MOS scale."}

Recruitment

Planned Sample Size
221
Recruitment Window Months
128
Consent Approach
Informed consent required from each participant (Inclusion criterion 1). Participants are adults (≥18) and provide consent themselves. Subject information and informed consent forms (L1_SIS and ICF) and patient-facing documents are available for publication and in multiple language versions (files include language variants such as DE, FR, ES, IT, NL, CS and an English lay synopsis), and specific ICFs addressing pregnancy and pregnant partner are provided. Women of childbearing potential must have negative pregnancy testing and adhere to contraception requirements per protocol.

Geography

Total Number Of Sites
27
Total Number Of Participants
247

France

Earliest CTIS Part Ii Submission Date
03-10-2025
Latest Decision Or Authorization Date
06-11-2025
Processing Time Days
34
Number Of Sites
5
Number Of Participants
51

Sites

Site Name
Hospices Civils De Lyon
Department Name
Neuro-oncologie
Contact Person Name
Francois Ducray
Contact Person Email
francois.ducray@chu-lyon.fr
Site Name
Assistance Publique Hopitaux De Paris
Department Name
Neuro-oncology
Contact Person Name
Alice Laurenge-Leprince
Contact Person Email
alice.laurenge@aphp.fr
Site Name
Centre Hospitalier Universitaire De Bordeaux
Department Name
Oncology Dept
Contact Person Name
Charlotte Bronnimann
Site Name
Oncopole Claudius Regaud
Department Name
Radiation Oncology
Contact Person Name
Elizabeth Cohen-Jonathan Moyal
Site Name
Centre Hospitalier Regional De Marseille
Department Name
Neurooncology
Contact Person Name
Emeline Tabouret
Contact Person Email
emeline.tabouret@ap-hm.fr

Spain

Earliest CTIS Part Ii Submission Date
03-10-2025
Latest Decision Or Authorization Date
05-11-2025
Processing Time Days
33
Number Of Sites
3
Number Of Participants
20

Sites

Site Name
Hospital Universitari Vall D Hebron
Department Name
Medical Oncology
Contact Person Name
Maria Vieito Villar
Contact Person Email
mvieito@vhio.net
Site Name
Hospital De La Santa Creu I Sant Pau
Department Name
Dept of Oncology
Contact Person Name
Oscar Gallego Rubio
Contact Person Email
ogallego@santpau.cat
Site Name
Hospital Universitario 12 De Octubre
Department Name
Medical Oncology Department / Neurooncology Unit
Contact Person Name
Juan Manuel Sepulveda
Contact Person Email
sepulvedasanchez@seom.org

Netherlands

Earliest CTIS Part Ii Submission Date
03-10-2025
Latest Decision Or Authorization Date
06-11-2025
Processing Time Days
34
Number Of Sites
3
Number Of Participants
36

Sites

Site Name
Amsterdam UMC Stichting
Department Name
Department of Medical Oncology
Contact Person Name
Myra van Linde
Contact Person Email
m.vanlinde@amsterdamumc.nl
Site Name
Academisch Ziekenhuis Maastricht
Department Name
Department of Medical Oncology
Contact Person Name
Ann Hoeben
Contact Person Email
ann.hoeben@mumc.nl
Site Name
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Department Name
Neuro Oncology
Contact Person Name
Maarten Wijnenga
Contact Person Email
m.wijnenga@erasmusmc.nl

Italy

Earliest CTIS Part Ii Submission Date
02-10-2025
Latest Decision Or Authorization Date
07-11-2025
Processing Time Days
36
Number Of Sites
4
Number Of Participants
41

Sites

Site Name
Azienda Ospedaliera Universitaria Citta Della Salute E Della Scienza Di Torino
Department Name
Neuro-oncology
Contact Person Name
Roberta Ruda
Contact Person Email
roberta.ruda@unito.it
Site Name
Azienda Ospedaliero-Universitaria Policlinico Umberto I
Department Name
Oncologia
Contact Person Name
Giuseppe Minniti
Contact Person Email
Giuseppe.minniti@uniroma1.it
Site Name
Istituto Oncologico Veneto
Department Name
Oncologia Medica I
Contact Person Name
Giuseppe Lombardi
Site Name
Instituto Di Ricovero E Cura A Carattere Scientifico
Department Name
Nervous System Medical Oncology
Contact Person Name
Enrico Franceschi
Contact Person Email
e.franceschi@ausl.bo.it

Belgium

Earliest CTIS Part Ii Submission Date
03-10-2025
Latest Decision Or Authorization Date
06-11-2025
Processing Time Days
34
Number Of Sites
3
Number Of Participants
25

Sites

Site Name
UZ Brussel
Department Name
Department of Neurosurgery - Neuro-oncology
Contact Person Name
Johnny Duerinck
Contact Person Email
johnny.duerinck@uzbrussel.be
Site Name
Universitair Ziekenhuis Gent
Department Name
Dept of Radiotherapy
Contact Person Name
Tom Boterberg
Contact Person Email
tom.boterberg@ugent.be
Site Name
UZ Leuven
Department Name
Oncology Dept
Contact Person Name
Paul Clement
Contact Person Email
Paul.Clement@uzleuven.be

Germany

Earliest CTIS Part Ii Submission Date
23-10-2025
Latest Decision Or Authorization Date
07-11-2025
Processing Time Days
15
Number Of Sites
5
Number Of Participants
42

Sites

Site Name
Heidelberg University
Department Name
Neurology Clinic
Contact Person Name
Lukas Bunse
Contact Person Email
lukas.bunse@umm.de
Site Name
Goethe University Frankfurt
Department Name
Neurology -Neuro oncology
Contact Person Name
Michael Burger
Contact Person Email
burger@med.uni-frankfurt.de
Site Name
Universitaetsklinikum Regensburg AöR
Department Name
Dept. of Neurology
Contact Person Name
Peter Hau
Contact Person Email
peter.hau@ukr.de
Site Name
Universitaetsklinikum Bonn AöR
Department Name
Clin. Neurooncology Unit, Dept of Neurology
Contact Person Name
Ulrich Herrlinger
Contact Person Email
ulrich.herrlinger@ukbonn.de
Site Name
Universitaetsklinikum Heidelberg AöR
Department Name
Neurologie und Poliklinik
Contact Person Name
Antje Wick

Czechia

Earliest CTIS Part Ii Submission Date
02-10-2025
Latest Decision Or Authorization Date
06-03-2026
Processing Time Days
155
Number Of Sites
1
Number Of Participants
11

Sites

Site Name
Masarykuv Onkologicky Ustav
Department Name
Radiation oncology
Contact Person Name
Tomas Kazda
Contact Person Email
tomas.kazda@mou.cz

Austria

Earliest CTIS Part Ii Submission Date
13-10-2025
Latest Decision Or Authorization Date
04-05-2026
Processing Time Days
203
Number Of Sites
3
Number Of Participants
21

Sites

Site Name
Medical University Of Vienna
Department Name
Innere Med 1 Abt oncologie
Contact Person Name
Matthias Preusser
Site Name
Medizinische Universitaet Innsbruck
Department Name
Neurosurgery
Contact Person Name
Christian Freyschlag
Site Name
Kepler Universitaetsklinikum GmbH
Department Name
Neurology and Neurooncology
Contact Person Name
Annette Leibetseder-Zeller

Sponsor

Primary sponsor

Full Name
Europese Organisatie Voor Onderzoek En Behandeling Van Kanker Organisation Europeenne Pour La Recherche Et Le Traitement Du Cancer European Organi
Organisation Type
Patient organisation/association
Country Of Registered Address
Belgium

Third parties

  • {"country":"Belgium","full_name":"Tamara Sals Clinical Expertise","duties_or_roles":"Monitoring in Belgium and Netherlands; sponsor duties codes include 1 and 15","organisation_type":"Pharmaceutical company"}
  • {"country":"Netherlands","full_name":"Amsterdam UMC Stichting","duties_or_roles":"Tasks related to the neurocognitive function testing (sponsor duty code 15)","organisation_type":"Patient organisation/association"}
  • {"country":"Germany","full_name":"Universitaetsklinikum Heidelberg AöR","duties_or_roles":"Sponsor duty code 4","organisation_type":"Hospital/Clinic/Other health care facility"}
  • {"country":"United Kingdom","full_name":"Klinikos Limited","duties_or_roles":"Monitoring in Austria, Germany, Switzerland, France, Italy, Czech Republic (sponsor duties codes 1 and 15)","organisation_type":"Pharmaceutical company"}
  • {"country":"France","full_name":"TrialPEX","duties_or_roles":"Reimbursement of patients expenses in France (sponsor duty code 15)","organisation_type":"Industry"}
  • {"country":"France","full_name":"Cryoport France","duties_or_roles":"Biobanking, Shipment of samples (sponsor duty code 15)","organisation_type":"Pharmaceutical company"}
  • {"country":"Spain","full_name":"Alcura Health Espana S.A.","duties_or_roles":"Sponsor duty code 14","organisation_type":"Pharmaceutical company"}

Investigational products

Investigational Product Name
S95032/AG-881 (10 mg formulation)
Active Substance
VORASIDENIB
Modality
Small molecule
Routes Of Administration
Oral
Route
Oral
Authorisation Status
prodAuthStatus 1
Orphan Designation
Yes
Dose Levels
10 mg (formulation listed)
Maximum Dose
40 mg (max daily dose amount)
Investigational Product Name
S95032/AG-881 (40 mg formulation)
Active Substance
VORASIDENIB
Modality
Small molecule
Routes Of Administration
Oral
Route
Oral
Authorisation Status
prodAuthStatus 1
Orphan Designation
Yes
Dose Levels
40 mg (formulation listed)
Maximum Dose
40 mg (max daily dose amount)
Investigational Product Name
Placebo tablets to match S95032 drug product
Modality
Other
Routes Of Administration
Oral
Route
Oral

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