Detail Article

Informations générales (source: ClinicalTrials.gov)

Numéro NCT

NCT06314607 En recrutement IDF

Titre

Genetic and Molecular Characterization of Nervous System Lesions (ONCONEUROTEK 2)

Type

Observational

Pathologie

Tumeurs du cerveau

Phase

Promoteur

Assistance Publique - Hôpitaux de Paris (Voir sur ClinicalTrials)

Date de début

mars 2024

Date de fin

mars 2034

Dernière mise à jour

21 septembre 2024

Résumé

Primary and secondary brain tumors, the leading cause of death from cancer before the age of 35, represent a complex and heterogeneous group of pathologies with a generally poor prognosis. Knowledge of these tumors has made enormous strides thanks to access to biological samples, leading to a much more robust, reliable and precise histo-pronostic classification, but also, increasingly, to the identification of theranostic targets. Despite these advances, there is a real need to refine diagnostic and prognostic classification, identify the biological mechanisms involved in the formation and progression of these pathologies, develop new targeted strategies, and devise minimally invasive follow-up methods (liquid biopsies). In addition, certain non-tumoral brain lesions (e.g. malformations) can be similarly classified according to their molecular and mutational profile. This project aims to make a decisive contribution to these objectives.

Détail

Voir le détail Over the past 15 years, knowledge of these tumors has increased exponentially, thanks to the genomic revolution (high-throughput sequencing, methylome analysis), which has improved their classification, defining homogeneous prognostic, predictive and even theranostic groups (BRAF, FGFR, NTRK). This knowledge has only progressed thanks to access to tumor samples, but also to constitutional DNA and liquid biopsies. The histo-pronostic classification of these tumors is constantly evolving, as evidenced by the new WHO 2021 version, which integrates more and more molecular markers for diagnosis (in which the team participated), and considerably modifies nosological frameworks. This process began with the 2007 classification, which was purely morphological and particularly unsatisfactory, with over 30% inter-observer diagnostic discordance, and the 2016 version has considerably clarified the classification of grade 2 and 3 gliomas, by integrating biomarkers that are now unavoidable, such as 1p19q codeletion and IDH1 and IDH2 mutation: however, it has taken several years for these markers to be routinely performed and managed. The extremely rapid evolution of diagnostic criteria is illustrated by the c-impact now initiative, which has regularly revisited the classification of primary brain tumours, and gliomas in particular, in the light of the most recent publications, and on which the 2021 classification is based: however, certain data are still fragile and criticized because they are based on limited series (for example, the definition of grade 2 gliomas, reclassified as "molecular glioblastomas". Glioblastoma and other diffuse gliomas are incurable, lethal diseases that are resistant to conventional treatments (radiotherapy, chemotherapy). Compared with other cancers, the number of effective treatments and therefore treatment lines available is limited. The longitudinal study of these diseases is essential to understanding the mechanisms of resistance to treatment and identifying new vulnerabilities. Our team actively contributes to this research, for which tumor samples at initial diagnosis, but also at recurrence and possibly post-mortem are invaluable. Given its strengths, our team can now make a decisive contribution to improving diagnosis and prediction in the management of primary brain tumors. First and foremost, the team represents Europe's leading center for the management of glioma patients. Between 10% and 15% of patients with primary brain tumors in France are treated in Neuro-oncology at La Salpêtrière. Beyond the diagnostic aspect, high-throughput sequencing techniques have made it possible to identify anomalies that can be used in oncology. However, these are still rarely detected in gliomas. Only a very limited number of markers, included in the WHO2016 classification, which we helped to identify, are now part of the "standard" management of these patients. The rest are part of research. However, we have recently shown that a broader search for actionable abnormalities carried out in specific studies, has enabled patients to benefit from personalized therapies with a real gain in survival, but access is still restricted via the Seqoia program, to a small number of patients. In conclusion, there is a real need to refine diagnostic and prognostic classification, identify new targeted strategies, and develop minimally invasive follow-up methods (liquid biopsies). Some lesions, however, are not tumoral in nature, but rather malformative, such as cerebral dysplasia or vascular malformations. Interestingly, somatic mutations are also found at the origin of these lesions, making it possible to classify them, and above all to propose treatments targeting these alterations. As these non-tumoral lesions are subject to a diagnostic and sometimes therapeutic strategy similar to tumors, and as our team has developed real expertise in this field, and above all as it is not always possible to distinguish, pre-operatively, between a malformative lesion and a tumor, we have broadened the search, and retain the term "lesion" in the patient information and consent form. Fermer le détail

Etablissements

Les établissements d'Île-de-France ayant mis à jour leurs données Origine et niveau de fiabilité des données
AP-HP - Hôpital La Pitié-Salpêtrière	SANSON Marc	En recrutement IDF	18/04/2025 07:55:54	Contacter
Les établissements sans correspondance certaine dans le répertoire FINESS dont les données sont issues de ClinicalTrials.gov Origine et niveau de fiabilité des données
Service de Neurochirurgie - Hôpital de la Pitié Salpêtrière - 75013 - Paris - France	Bertand Mathon, Dr	En recrutement		Contact (sur clinicalTrials)
Service de Neurologie 2 -Hôpital de la Pitié Salpêtrière - 75013 - Paris - France	Marc Sanson, Prof	En recrutement		Contact (sur clinicalTrials)
Service de Radiothérapie - Hôpital de la Pittié Salpêtrière - 75013 - Paris - France	Julian Jacob, Dr	En recrutement		Contact (sur clinicalTrials)

Critères

Genre

Tous

Nombre d'inclusion

Critère d'inclusion

Inclusion Criteria:

- Any patient operated on for a brain lesion (e.g. tumors: glioma, LCPSNC, meningioma,
or rare tumor) and/or followed up for one of these pathologies.

- Age ≥ 18 years

- Consent or non-opposition of the patient or his/her legal representative (guardian)
to participate in the study.

Critère de non inclusion

NCT06314607 - Genetic and Molecular Characterization of Nervous System Lesions (ONCONEUROTEK 2)

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