Creation of a Clinical Database on Primary Nervous System Tumors

Study Overview
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Brief Summary
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the creation of a clinical database including data for all PCNST patients is of high interest. This database will allow us to develop clinical studies on: The clinical, radiological and biological presentation of tumors, the impact of oncological treatments and the evaluation of survival for the different subtypes of Primary central nervous system tumors (PCNST). This is particularly important for rare histological subtypes of PCNST for which the current knowledge is scarce; Clinical, radiological and biological factors predictive of tumor response to treatments; Prognostic factors.

Detailed Description
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Primary central nervous system tumors (PCNST) correspond to all primitive tumors involving central nervous system structures, meninges and the origin of the cranial and paraspinal nerves. They have a malignant, benign, or borderline evolution. TPSNC represent a heterogeneous group of tumors, with more than 140 subtypes described in the WHO classification. The causes, prognostic factors, and therapeutic management differ according to the histological subtype. The incidence of all of TPSNCs ranges from 17.6 to 22.0/105 in North American and European studies. However, because of the high number of different histological subtypes, most of them must be considered as rare tumors. Moreover, they represent a major public health problem due to high morbidity [8] and mortality. In this context, the creation of a clinical database including data for all PCNST patients is of high interest. This database will allow us to develop clinical studies on: The clinical, radiological and biological presentation of tumors, the impact of oncological treatments and the evaluation of survival for the different subtypes of PCNST. This is particularly important for rare histological subtypes of PCNST for which the current knowledge is scarce; Clinical, radiological and biological factors predictive of tumor response to treatments; Prognostic factors. The database will also allow us to develop or participate in multicentric clinical studies, at the national or international level, as well as to facilitate the identification of patients for inclusion in translational studies

Official Title
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Creation of a Clinical Database on Primary Nervous System Tumors

Conditions
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Nervous System Tumor

Intervention / Treatment
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* Other: data collection


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adult patient aged ≥ 18, no age limit; Diagnosis of Primary central nervous system tumors ; Patient treated at the Montpellier Cancer Institute, whatever the treatment received (systemic treatment, radiotherapy or exclusive supportive care); For the retrospective part of the study, patient first treated at the Montpellier Cancer Institute between January 1rst, 2004 and the beginning of the prospective part; Patient information for the retrospective (patient still alive at the beginning of the study) and prospective study. Exclusion Criteria: Secondary lesions of the central nervous system; Patient not affiliated to a social protection scheme; Subject under tutelage, curatorship or safeguard of justice.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Primary Nervous System Tumors arm<br>The information letter will be delivered by the investigator physician to the patients to inform them on the study, its implementation and their complete freedom to participate or not. Clinical Data and Questionnaires: For the retrospective part Patient identification based on data from the Medical Information Department (DIM) of the ICM; Verification of the eligibility criteria; Inclusion of patients in a coded form in BDD-NO; Implementation of the database with the data already collected (as an coded EXCEL file) in specific studies (some patients are included in several of these studies): study of diffuse low grade gliomas, study on anaplastic gliomas, study on the place of Bevacizumab in high-grade gliomas, clinical database created Collection of clinical data from each patient's medical record For the prospective part Inclusion of patients in a coded form in BDD-NO; Collection of clinical data from each patient's medical record. | Other: data collection<br>* Diagnostic data : date and description of first symptoms,date of radiological diagnosis, tumor localization, number of lesions, date of histological diagnosis, histological diagnostic mode, histological diagnosis, WHO grade (I, II, III or IV), immunohistochemic data, molecular alterations therapeutic sequence : type of treatment, baseline exam before each treatment, surgery, radiothérapy, systemic treatment, clinical study, follow up until death<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Establish an exhaustive database of patients treated for a Primary central nervous system tumors at the Montpellier Cancer Institute, whatever the histological subtype and the oncological treatment | collection of clinical data in the medical record | From date of inclusion until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Realization of clinical studies specific to certain histological subtypes to be carried out on the clinical, radiological and biological presentation of patients, specific oncological treatments and toxicities, prognostic factors and survival data | obtaining reliable clinical data for write new clinical trials project | From date of inclusion until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months | 
| To allow the realization of epidemiological studies specific to certain histological subtypes | new clinical trials project based on this clinical database | From date of inclusion until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months | 
| To facilitate the identification of patients for inclusion in French or European retrospective studies | new clinical trials project based on this clinical database | From date of inclusion until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Primary central nervous system tumors, clinical database