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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03345290
Other study ID # PSS2016/PACTEP-VERGER/VS
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date July 31, 2018
Est. completion date November 6, 2020

Study information

Verified date August 2022
Source Central Hospital, Nancy, France
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Cerebral glycolytic metabolism can be quantified by quantitative analysis of 18F-Fluorodeoxyglucose (18F-FDG) Positron Emission Tomography (PET). This allows to identify neurological diseases at an early stage of functional abnormalities, before any anatomical lesions, and to differentiate them from the "normal" brain aging. Aging mainly leads to atrophy with a decrease in cerebral metabolism in the prefrontal cortex, with consequent deterioration of cognitive processes, in particular executive functions (5). In a population of 92 "control" subjects, investigators have already quantified the importance of the aging in frontal cortex hypometabolism. These patients were referred for a 18F-FDG PET in the follow-up of lymphoma considered to be in complete remission (PET without cerebral step), without any chemoradiotherapy within 2 months and with normal neuropsychological tests (Mini Mental State Examination, MMSE, Mini International Neuropsychiatric Interview MINI and Frontal Assessment Battery FAB). However, cerebral aging can be "accelerated" by vascular risk factors, including increased central blood pressure, as investigators have recently reported in a pilot study involving elderly patients. This central pressure, which is directly linked to the cerebral micro-vascularization, can be easily measured by applanation tonometry. In this pilot study, investigators showed that a central pulse pressure equal or greater than 50 mmHg was associated with a significant frontal hypometabolism in elderly patients. This confirmed, at a stage of pre-clinical remodeling, the worse prognostic significance for this criterion, as reported in large epidemiological studies (increased risk of stroke and cardiac vascular events). However, it is not yet known whether the level of central blood pressure interfere with the brain metabolism of younger subjects, especially with regard to aging observed throughout life. If this hypothesis is confirmed, preventive therapeutic strategies for accelerated aging, could thus integrate the monitoring of central pressure and cerebral metabolism. The objective of this study is to determine, in a population of control subjects and on a larger scale, the impact of central blood pressure on brain metabolic aging , by using 18F-FDG PET.


Recruitment information / eligibility

Status Completed
Enrollment 92
Est. completion date November 6, 2020
Est. primary completion date November 6, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - > 18 years old, with written informed consent, - Subjects referred for 18F-FDG PET in a non-oncological setting, - Absence of pregnancy or breastfeeding, - Lack of chemotherapy in the previous year and no cerebral radiotherapy. - No history of psychiatric or neurological pathology. - Absence of treatment with psychotropic action, and absence of corticosteroids. Exclusion Criteria: - "abnormal" neuropsychological tests: - Mini Mental State Examination (MMSE) <27, - Current major depressive episode on the Mini International Neuropsychologic Interview (MINI), - Frontal Assessment Battery (FAB) <15. - 18F-FDG PET examination showing ischemic, neurodegenerative, neoplastic or other brain lesions (independent of a normal or accelerated aging process).

Study Design


Related Conditions & MeSH terms


Intervention

Device:
PET with a cerebral step
Positron Emission Tomography with a cerebral step before to carry out the standard Position Emission Tomography
Central blood pressure measurement
Central blood pressure measurement
Other:
Neurocognitive tests
Mini Mental State Examination, MMSE, Mini International Neuropsychiatric Interview MINI and Frontal Assessment Batery FAB

Locations

Country Name City State
France CHRU Nancy Vandoeuvre les Nancy

Sponsors (1)

Lead Sponsor Collaborator
Central Hospital, Nancy, France

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary volume of brain areas detected by quantitative analysis At inclusion
Primary topography of brain areas detected by quantitative analysis At inclusion
Primary central blood pressure At inclusion
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