New Imaging Biomarkers Predictive of MA Progression
Ориентир для пациента и семьи
Простыми словами
Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.
- Что изучают
- В протоколе указаны: MRI follow-up.
- Кому может быть актуально
- Состояния в реестре: Alzheimer Disease, Magnetic Resonance Spectroscopy, Ultra High Field 7T, Progression of Disease. Базовые параметры: 60 лет — 90 лет · Все.
- Что важно проверить
- Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
- Где проводится
- Франция
- Следующий шаг
- Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →
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Официальное название
Identifying Imaging Biomarkers Predictive of Disability Progression in Alzheimer's Disease: Pilot Study
Обзор
The pathophysiology of AD is complex. In addition to amyloid plaques and neurofibrillary degeneration, there is a metabolic alteration of the energy pathways, oxidative phosphorylation and glycolysis, which are involved in brain function. Several authors have shown a series of early metabolic dysregulations via an increase in phosphorylation at the origin of neuronal death. Ultra-high field imaging (7T MRI) may allow, with its better spatial resolution and advanced imaging techniques, to shed light on the mechanisms of progression of Alzheimer's disease. A Magnetic Resonance Spectroscopy (MRS) examination can be coupled to brain MRI without additional risk for the patient. Multinuclear 1H-31P metabolic imaging is a promising tool that can provide information on the metabolic evolutionary profile of AD. Thus, we propose a longitudinal study in patients with early-stage AD on 7T MRI-MRS.
Вмешательства
- Другое MRI follow-up
MRI follow-up for patient with early onset Alzheimer's disease
Первичные конечные точки
- To identify Magnetic Resonance Imaging biomarkers concentration (mmol/l) at baseline that are predictive of disability progression in individuals with Mild Alzheimer's disease as assessed by the Clinical Dementia Rating (CDR) scale [Срок оценки: Baseline]
Вторичные конечные точки (5)
- Correlation between Imaging biomarkers concentration (mmol/l) and plasma metabolic parameters concentration (mmol/l) at baseline, Month 6 (M6) and Month 12 (M12). [Срок оценки: up of 12 months]
- Correlation between Imaging biomarkers concentration (mmol/l) and Urinary metabolic parameters (mmol/l) at baseline, Month 6 (M6) and Month 12 (M12). [Срок оценки: up of 12 months]
- Correlation between Imaging biomarkers concentration (mmol/l) and Enzymatic and protein parameters concentration (mmol/l) at baseline, Month 6 (M6) and Month 12 (M12). [Срок оценки: up of 12 months]
- Develop realistic mathematical models that integrate multiple parameters from all generated data to predict the progression of Alzheimer's disease, as evaluated using the Clinical Dementia Rating (CDR) [Срок оценки: up of 12 months]
- Build an Artificial Intelligence (AI) algorithm to predict disability progression in individuals with Mild Alzheimer's disease, as assessed by the Clinical Dementia Rating scale [Срок оценки: up of 12 months]
Критерии участия
Критерии включения
- French-speaking patients aged 60 to 90 years,
- Patient in the context of Alzheimer's disease \* for which imaging after MRI is prescribed as part of the usual diagnostic process,
\*Alzheimer's disease is diagnosed by the doctor of the memory consultation and is defined by :Evidence of a storage disorder in verbal episodic memory at LR/RI defined by a sum of LR < 17/48 and sum of RT < 40/48 +/- Impairment of executive functions possible (BREF, TMT grefex, verbal fluencies) +/- Impairment of instrumental functions possible (Grémots noun naming, Rey's figure, Mahieux's Battery).
- MMSE score ≥18,
- Written informed consent after the patient has been informed,
- Progressive decline for at least 6 months.
Критерии исключения
--Partially or completely illiterate patient unable to read and write,
- Patient with an absolute contraindication to 7T MRI
- Severe psychiatric pathology not balanced,
- Non-degenerative neurological disease (stroke, multiple sclerosis ...),
- Patient with tumor or inflammatory pathology, or vascular leukopathy visualized in MRI (Fazekas score > 3)
Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.
Здоровые добровольцы: Нет
Дизайн исследования
- Распределение
- Не применимо
- Модель
- Одна группа
- Маскирование
- Открытое
- Основная цель
- Другое
Центры проведения
Франция · 1 центр
- Chu Poitiers — Poitiers
Идентификаторы
NCT: NCT05939362 · MR7T-PRADA