アルツハイマー病におけるバイオマーカーの同定 (SEEDS)
Alzheimer's disease is a severe neurodegenerative disorder of the brain that is characterized by progressive loss of memory and cognitive decline. With the ageing population, AD is a major public health problem affecting nearly 35 million people worldwide with numbers projected to rise to 115.4 million by 2050. AD is the only cause of death among the top ten causes that has no prevention or cure . It is believed that novel treatment of AD needs to start early or even at the prodromal stage in order to be effective. Therefore, there is an urgent need to find accurate methods of early detection before patients with AD develop clinical dementia.
This study aims to identify biomarkers for AD in local Chinese population. this study hypothesizes blood-based proteomics, retinal imaging, ASL-MRP and tau PET can improve the accuracy and staging of AD.
調査の概要
状態
状態
詳細な説明
This is a cohort study. It involves baseline and 6 yearly follow ups. At baseline, all participants will go through a list of cognitive assessments, blood taking, Brain MRI scan, Brain PET scan and retinal imaging.
At the first five yearly follow ups, cognitive assessment will be performed. For the sixth yearly follow up, automatic retinal image will be performed in addition to cognitive assessment.
研究の種類
研究の種類
入学 (推定)
入学
連絡先と場所
研究連絡先
研究連絡先
- 名前:Pualine Kwan
- 電話番号:+852 26352160
- メール:paulinekwan@cuhk.edu.hk
研究連絡先のバックアップ
- 名前:Elyia Han
- 電話番号:+852 2697 5027
- メール:elyiahan@cuhk.edu.hk
研究場所
-
-
Hong Hong
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Hong Kong、Hong Hong、香港
- 募集
- Chinese University of Hong Kong
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主任研究者:
- Vincent Mok, MD
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コンタクト:
- Elyia Han, Bachelor
- 電話番号:+852 26975027
- メール:elyiahan@cuhk.edu.hk
-
-
参加基準
適格基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
AD subjects will be recruited from neurology cognitive disorder clinic of Prince of Wales Hospital. Age match normal control will be recruited from existing normal control studies.
説明
Inclusion Criteria:
- Chinese ethnicity
- [For dementia group, clinical diagnosis of "probable Alzheimer's disease" according to recommendation from the National Institute on Aging-Alzheimer's Association workgroups (NIA-AA)
Exclusion Criteria:
- Clinical diagnosis of non-AD dementia
- contraindication for MRI or PET
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 観測モデル:COHORT
- 時間の展望:PROSPECTIVE
グループ/コホートの数
コホートと介入
グループ/コホートグループ/コホート |
|---|
|
Normal cognition
75 subject without any of the following: subjective memory complaint and cognitive impairment base on cognitive assessments |
|
Subjective Cognitive Disorder
75 subjects without cognitive impairment based on cognitive cognitive assessments but with subject memory complaint |
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Mild Cognitive Impairment
75 subjects with both subjective memory complaints and mild cognitive impairment base on cognitive assessments |
|
Dementia
75 subjects with both subjective memory complaints and moderate to severe cognitive impairment base on cognitive assessments |
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
The score change in Hong Kong List Learn Test (HKLLT)
時間枠:Baseline, 1 year, 2 year, 3 year ,4 year ,5 year and 6 year visit after baseline visit
|
The Hong Kong List Learn Test would be administered to assess the cognitive status for all group of study subjects |
Baseline, 1 year, 2 year, 3 year ,4 year ,5 year and 6 year visit after baseline visit
|
|
The score change in Montreal Cognitive Assessment Hong Kong (HK-MoCA)
時間枠:Baseline, 1 year, 2 year, 3 year ,4 year ,5 year and 6 year visit after baseline visit
|
The Montreal Cognitive Assessment Hong Kong would be administered to assess the cognitive status for all group of study subjects |
Baseline, 1 year, 2 year, 3 year ,4 year ,5 year and 6 year visit after baseline visit
|
|
The score change Clinical Dementia Rating (CDR)
時間枠:Baseline, 1 year, 2 year, 3 year ,4 year ,5 year and 6 year visit after baseline visit
|
The Clinical Dementia Rating would be administered to assess the cognitive status for all group of study subjects |
Baseline, 1 year, 2 year, 3 year ,4 year ,5 year and 6 year visit after baseline visit
|
|
Amount of amyloid β with 11C-Pittsburgh compound B
時間枠:Baseline
|
Positron emission tomography imaging with 11C-Pittsburgh compound B would quantify the amount of amyloid β. Amyloid β is one of the biomarkers associate Alzheimer Disease |
Baseline
|
|
Amount of amyloid tau with T807 tracer
時間枠:Baseline
|
Positron emission tomography imaging with T807 tracer would quantify the amount of tau protein. tau protein is one of the biomarkers associate with Alzheimer Disease |
Baseline
|
|
Amount of glucose hypometabolism
時間枠:Baseline
|
Positron emission tomography imaging with 18F-FDG tracer would quantify the amount of glucose hypometabolism. glucose hypometabolism is one of the biomarkers associate with Alzheimer Disease |
Baseline
|
|
arterial spin labeling magnetic resonance perfusion (ASL-MRP)
時間枠:Baseline
|
Arterial spin labeling (ASL) perfusion is a MRI technique to quantify tissue blood flow of all group of subjects |
Baseline
|
|
Change of Automatic Retinal Imaging
時間枠:Baseline, 6th year follow up
|
There is a close anatomical correlation between both the macrovascular and the microvascular blood supply to the brain and the retina, and both vascular networks share similar vascular regulatory processes. Automatic Retinal Imaging is used to investigate microcirculations in retinal |
Baseline, 6th year follow up
|
協力者と研究者
研究記録日
主要日程の研究
研究開始 (実際)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。