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Идёт набор NCT05939362

New Imaging Biomarkers Predictive of MA Progression

Без фазы С лечением Alzheimer Disease Magnetic Resonance Spectroscopy Ultra High Field 7T Progression of Disease

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 →
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

Первоисточники (государственные реестры)

Открыть это исследование на ClinicalTrials.gov ↗