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- Ensayo clínico NCT02420470
The Early Warning System for the Diabetic Encephalopathy
12 de julio de 2022 actualizado por: Tang-Du Hospital
The Early Warning System for the Central Nervous System Micro-structure Alterations During Early Diabetes Based on the Multi-mode MRIs
Diabetes( mainly type II diabetes )lead to the central nervous system (CNS) function impairment, especially the mild cognitive impairment that increased the risk of progression to dementia.The primary objectives are defined according to a hierarchical design: i) to tailor and apply multi-parametric, functional MRI techniques to identify cerebral abnormalities (cerebral biomarkers) in type 2 diabetes mellitus and prodromal diabetes mellitus ; ii) to assess whether these cerebral biomarkers are associated with cognitive decrements;iii) to follow up with the putative prediabetic condition patients to verify whether they can transform into diabetes.
Descripción general del estudio
Estado
Reclutamiento
Descripción detallada
Diabetes ( mainly type II diabetes ) lead to the central nervous system (CNS) function impairment, especially the mild cognitive impairment (MCI) that increased the risk of progression to dementia.
It was regarded that neurodegeneration contributes to the diabetic MCI, however, recent research suggested that CNS microvascular alterations are the mechanism for early diabetic MCI.
But there still lacks an early warning system for the CNS micro-structure alterations during early diabetes.
Latest neuroimaging techniques enable the measurement of brain blood flow, local neural activity,and the nuclei deposition of iron to reflect CNS micro-structure alterations.
But these techniques are complicated and can not fully reflect the alterations with one single technique.We previous observed that 44.4% of diabetic patients demonstrate MCI and established the comprehensive protocols of measuring brain blood flow, local neural activity and the nuclei deposition of iron simultaneously based on the multimodal MRI technique so as to reflect the microstructure alterations reliably and validly.
Therefore, we intend to integrate psychological measurement and clinical biochemical examination, and to establish the early warning system for the central nervous system micro-structure alterations during early diabetes based on the multi-modal MRI technique.
The reliability and validity of this system will be tested in the diabetic rat model.
The early warning system will likely assist in screening patients with diabetic microstructure alterations, to perform early intervention so as to prevent or delay the progression from diabetic MCI to dementia.
Tipo de estudio
De observación
Inscripción (Anticipado)
300
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Estudio Contacto
- Nombre: Guangbin Cui, professor
- Correo electrónico: cgbtd@126.com
Ubicaciones de estudio
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Shaanxi
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Xi'an, Shaanxi, Porcelana, 710032
- Reclutamiento
- Tangdu Hospital
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Contacto:
- Ying Yu, master
- Número de teléfono: 029-18191260958
- Correo electrónico: yqlmn@126.com
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
40 años a 65 años (Adulto, Adulto Mayor)
Acepta Voluntarios Saludables
Sí
Géneros elegibles para el estudio
Todos
Método de muestreo
Muestra de probabilidad
Población de estudio
prodromal diabetes and early diabetes
Descripción
Inclusion Criteria:
- without dementia
- Inform Consent Form
- Education time more than 6 years
- blood glucose matches the group standard
Exclusion Criteria:
- Pregnant woman
- suffer from serious brain disease
- Magnetic resonance contraindications
- lack of compliance
- image quality is too poor to deal with
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
Cohortes e Intervenciones
Grupo / Cohorte |
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healthy control group
fasting plasma glucose(FPG)<6.11mmol/L,and
2-h plasma glucose(2hPG)<7.77mmol/L;
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prodromal diabetes group
IFG:fasting plasma glucose(FPG) ≥5.6mmol/L (100mg/dl),and<7.0mmol/L
(126mg/dl),oral glucose tolerance test(OGTT) 2-h plasma glucose(2hPG) <7.8 mmol/L ;IGT:oral glucose tolerance test(OGTT) 2-h plasma glucose(2hPG) ≥7.8mmol/L (140mg/dl),and<11.1mmol/L
(200mg/dl),fasting plasma glucose(FPG)< 5.6mmol/L
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diabetes group
fasting plasma glucose(FPG)>7.0mmol/L,
or 2-h plasma glucose(2hPG)>11.1mmol/L
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Functional and structural connectivity relationships of multiple brain regions and biomarkers of brain alterations, and the changes in relationships and biomarkers at 2.5 years.
Periodo de tiempo: subjects will be assessed six times (once half a year, up to 2.5 years )
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Differences in macro-structural and micro-structural between patients,prodromal group and healthy controls will be evaluated.
These MRI measures include volumetric characteristics (e.g.
hyper-intensities, white matter lesions, atrophy, cerebral microbleeds), quantitative measures (e.g.
T2 relaxation times, mean diffusivity, fractional anisotropy, mean kurtosis), functional characteristics (e.g.
activated regions, cerebral blood flow), network properties (e.g.
functional and structural connectivity, graph-theoretical measures).
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subjects will be assessed six times (once half a year, up to 2.5 years )
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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evaluation of obesity and the changes in the state of obesity at 2.5 years
Periodo de tiempo: subjects will be assessed six times (once half a year, up to 2.5 years)
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Simple evaluation of obesity will include: Body mass index will be calculated as the weight (kg) divided by the square of the height (m).
Waist circumference (WC) will be taken as the minimum circumference between the umbilicus and xiphoid process and measured to the nearest 0.5 cm.
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subjects will be assessed six times (once half a year, up to 2.5 years)
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metabolic characteristics and their changes at 2.5 years
Periodo de tiempo: subjects will be assessed six times (once half a year, up to 2.5 years)
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Simple metabolic characteristics will include: oral glucose tolerance test, C peptide releasing test and insulin releasing test will be assessed;homeostasis model assessment of insulin resistance,insulin secretion of homeostasis model assessment and homeostasis model assessment-β will be calculated.
what's more, cardiovascular risk factors(e.g.
albumin, creatinin, total cholesterol, LDL- and HDL-cholesterol, triglycerides, HbA1c) will be assessed.
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subjects will be assessed six times (once half a year, up to 2.5 years)
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Mental health and the changes in the scores of the scales at 2.5 years
Periodo de tiempo: subjects will be assessed six times (once half a year, up to 2.5 years)
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To evaluate the mental health, a series of psychiatric evaluation scale(e.g.
mini-mental state examination, Montreal Cognitive Assessment,Hamilton anxiety scale, self-rating depression scale, frontal assessment battery) will be assessed.
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subjects will be assessed six times (once half a year, up to 2.5 years)
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Lifestyle and its changes at 2.5 years
Periodo de tiempo: subjects will be assessed six times (once half a year, up to 2.5 years)
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Lifestyle specifics, including alcohol consumption, smoking behavior and mobility and exercise habit will be obtained.
At the same time, quality of life will be obtained through a questionnaire.
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subjects will be assessed six times (once half a year, up to 2.5 years)
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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Investigadores
- Silla de estudio: Guangbin Cui, professor, Tang-Du Hospital
Publicaciones y enlaces útiles
La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.
Publicaciones Generales
- Hu B, Yan LF, Sun Q, Yu Y, Zhang J, Dai YJ, Yang Y, Hu YC, Nan HY, Zhang X, Heng CN, Hou JF, Liu QQ, Shao CH, Li F, Zhou KX, Guo H, Cui GB, Wang W. Disturbed neurovascular coupling in type 2 diabetes mellitus patients: Evidence from a comprehensive fMRI analysis. Neuroimage Clin. 2019;22:101802. doi: 10.1016/j.nicl.2019.101802. Epub 2019 Mar 27.
- Sun Q, Chen GQ, Wang XB, Yu Y, Hu YC, Yan LF, Zhang X, Yang Y, Zhang J, Liu B, Wang CC, Ma Y, Wang W, Han Y, Cui GB. Alterations of White Matter Integrity and Hippocampal Functional Connectivity in Type 2 Diabetes Without Mild Cognitive Impairment. Front Neuroanat. 2018 Mar 20;12:21. doi: 10.3389/fnana.2018.00021. eCollection 2018.
- Yu Y, Sun Q, Yan LF, Hu YC, Nan HY, Yang Y, Liu ZC, Wang W, Cui GB. Multimodal MRI for early diabetic mild cognitive impairment: study protocol of a prospective diagnostic trial. BMC Med Imaging. 2016 Aug 24;16(1):50. doi: 10.1186/s12880-016-0152-x.
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio
1 de abril de 2015
Finalización primaria (Anticipado)
1 de noviembre de 2025
Finalización del estudio (Anticipado)
1 de diciembre de 2026
Fechas de registro del estudio
Enviado por primera vez
2 de abril de 2015
Primero enviado que cumplió con los criterios de control de calidad
14 de abril de 2015
Publicado por primera vez (Estimar)
17 de abril de 2015
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
13 de julio de 2022
Última actualización enviada que cumplió con los criterios de control de calidad
12 de julio de 2022
Última verificación
1 de julio de 2022
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- TDLL-2014086
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
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