MRS of Glioma Genomics

NCT ID: NCT05700071

Last Updated: 2025-03-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-03-06

Study Completion Date

2028-03-02

Brief Summary

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In France, about 5000 new people with a primary malignant brain tumor are diagnosed each year. The most common primary tumors are gliomas, originating from glial cells (astrocytomas and oligodendrogliomas). Low-grade gliomas are mildly aggressive, but they often evolve into a more malignant form.

Mutations in the genes encoding isocitrate dehydrogenase (IDH) are found in about 80% of low-grade gliomas and are associated with a favorable prognosis. Remarkably, IDH-mutated gliomas are characterized by a specific cellular metabolism causing the accumulation of D-2-hydroxyglutarate (2HG) in tumor cells. 2HG can be detected in vivo using 1H magnetic resonance spectroscopy (MRS) and is recognized as a unique, noninvasive biomarker of IDH-mutated gliomas. Noninvasive detection of IDH mutations via 2HG MRS represents a crucial step for decision-making and patient care.

A subset of IDH-mutated tumors also presents a complete deletion of 1p and 19q chromosome arms (1p/19q codeletion). The 1p/19q codeletion is specifically linked to the oligodendroglial histologic subtype and it has been associated with a better patient outcome. However, the biological effects of this genetic alteration are still unclear and in vivo markers are lacking. Recently, we reported the first in vivo detection of the cystathionine molecule in human brain gliomas using MRS and explored the association between cystathionine accumulation and 1p/19q codeletion in gliomas.

In this project, the investigation team will combine cutting edge MRI and MRS techniques for metabolic and microstructural characterization of brain tumors with the aim of providing novel reliable noninvasive biomarkers of tumor genetic subtypes. These methods will enable noninvasive identification of IDH-mutated gliomas and, potentially, 1p/19q codeleted gliomas. In addition, the researchers will investigate the utility of 2HG, cystathionine and MRI microstructural markers to monitor tumor response to anti-cancer treatments and tumor progression.

The outputs of this project, altogether, may open new avenues to a better understanding of the pathophysiological mechanisms of oncogenesis and the design of new treatments for gliomas.

Detailed Description

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Conditions

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Glioma

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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MRI examination

Group Type EXPERIMENTAL

MRI

Intervention Type DIAGNOSTIC_TEST

MRI without contrast agent

Interventions

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MRI

MRI without contrast agent

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Affiliation à un régime de sécurité sociale (bénéficiaire ou ayant droit)
* Recueil du consentement écrit et éclairé
* Une des deux situations suivantes :

Groupe 1 : Probable gliome de grade II/III, dont l'exérèse est programmée

Groupe 2 : gliome de grade II ou III prouvé histologiquement avec statut IDH1/IDH2 connu, n'ayant reçu aucun autre traitement que la chirurgie, et devant débuter un traitement autre que la chirurgie.

* Présence d'un résidu tumoral évaluable (\>2 cm de diamètre en FLAIR)
* Index de Karnofsky \> 60
* Contraception efficace pendant la durée de la recherche, complété par un test de grossesse négatif pour les femmes en âge de procréer.

Exclusion Criteria

* Contrindications à l'IRM:

pace maker ou stimulateur neuronal, corps étranger métallique intraoculaire ou intracérébral, implant cochléaire, valve cardiaque ou matériel artériel chirurgical métallique non compatible IRM, matériel métallique susceptible de concentrer les impulsions de radio fréquence, claustrophobie

* femmes enceintes ou allaitantes
* Critères réglementaires :

Femme enceinte, parturiente, allaitante; Absence de signature du consentement ou refus du participant; Mesure de protection juridique (tutelle, curatelle, sauvegarde de justice); Participation à une autre recherche ne permettant pas de respecter la période; d'exclusion entre les 2 recherches; Personne ne bénéficiant pas d'un régime d'assurance maladie
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Institut National de la Santé Et de la Recherche Médicale, France

OTHER_GOV

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Francesca Branzoli, PhD

Role: STUDY_DIRECTOR

Paris Brain Institute, Paris, France

Marc Sanson, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Paris Brain Institute, AP-HP, Paris, France

Locations

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Pitié-Salpetrière Hospital

Paris, , France

Site Status NOT_YET_RECRUITING

Hôpital Pitié Salpêtrière, 47 Boulevard de l'Hôpital, 75013 Paris

Paris, Île-de-France Region, France

Site Status RECRUITING

Countries

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France

Central Contacts

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Marc Sanson, MD, PhD

Role: CONTACT

(0)1 42 16 03 91 ext. 0033

Francesca Branzoli, PhD

Role: CONTACT

(0)1 57 27 46 46 ext. 0033

Facility Contacts

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Marc Sanson, MD, PhD

Role: primary

(0)1 42 16 03 91 ext. 0033

Marc Sanson, pr

Role: primary

01 42 16 03 91

Other Identifiers

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2021-A03015-36

Identifier Type: OTHER

Identifier Source: secondary_id

C21-27

Identifier Type: -

Identifier Source: org_study_id

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