Multimodal Biomarkers for Diagnosis and Prognosis in VCI (VCI)
Multimodal Biomarkers for Diagnosis and Prognosis in Vascular Cognitive Impairment
We will try to
- establish the correlation of plasma Aβ40 and Aβ42 level, ApoE genotype, MRI imaging markers in the diagnosis and prognosis of VCI patients
- understand more on the pathophysiology of VCI.
調査の概要
詳細な説明
Background and objectives Owing to the aging problem, cognitive impairment has been a worldwide health issue. Vascular cognitive impairment (VCI) and Alzheimer's disease (AD) are the two most common causes. It has been reported that VCI and AD share many common risk factors. MRI is essential in assessing the extent, location and type of vascular lesions. Amyloid PET has been used in detecting cerebral amyloid burden non-invasively since 2004. There are only small number of studies using amyloid PET in VCI and the results are still controversial. In the current proposal, we will investigate
- the correlation of clinical risk factors, ApoE genotype, various MRI markers, and amyloid PET expression
- assess the influence of ApoE genotype on different biomarkers, including MRI markers, amyloid retention, and plasma Aβ40 and Aβ42 levels
- the potential of amyloid PET as a prognostic factor for VCI patients.
Materials and methods This study will be conducted in National Taiwan University Hospital and Bei-Hu Branch Hospital. Sixty clinical diagnosed VCI, 30 AD patients and 30 normal subjects will be enrolled in this 3-year prospective study. We will collect vascular risk factors, neuropsychological tests, 10 cc venous blood for plasma Aβ40, Aβ42, total tau and phosphorylated level measurement by IMR assay, ApoE genotype, brain MRI, and amyloid PET of each patient and control subject. All the data will be analyzed together.
Expected Results We will try to
- establish the correlation of plasma Aβ40 and Aβ42 level, ApoE genotype, MRI imaging markers in the diagnosis and prognosis of VCI patients
- understand more on the pathophysiology of VCI.
研究の種類
入学 (予想される)
段階
- フェーズ 3
連絡先と場所
研究場所
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Taipei、台湾、100
- 募集
- National Taiwan Univeristy Hospital
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コンタクト:
- Yen Ruoh Fang, MD, PhD
- 電話番号:65581 886-2-23123456
- メール:rfyen@ntu.edu.tw
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参加基準
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
説明
Inclusion Criteria:
-
I. Vascular cognitive impairment patients:
- Age older than 20 years.
Clinical diagnosis:
- At least one obstacle to executive function, attention, memory, language and visual space function.
- Affected activities of daily living.
- Brain MRI showing cerebrovascular disease.
- Patient agrees to participate in the study and is willing to receive 11C-PiB PET.
II. Alzheimer's disease (AD) patients:
- Age older than 20 years.
Clinical diagnosis:
- Amnesia or non-amnesia (language, visual space, executive ability) performance.
- Affected activities of daily living.
- Patient agrees to participate in the study and is willing to receive 11C-PiB PET.
III. Normal controls:
- Age older than 20 years.
- No neurological or psychiatric history.
- Patient agrees to participate in the study and is willing to receive 11C-PiB PET.
Exclusion Criteria:
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I. Vascular cognitive impairment patients:
- Have other illnesses, including people with drug / alcohol abuse / addictivity within three months.
- Patient cannot accept brain magnetic resonance imaging or 11C-PiB PET, such as agitation and inability to cooperate, allergy to contrast agents, hemodynamic instability (blood pressure, pulse, or blood oxygen is not in the normal range), and a heart rhythm regulator has been implanted , Have ever undergone intracranial aneurysm clamp surgery, claustrophobia and hemodynamic instability.
- Pregnant woman or intends to be pregnant in the near future.
- Patient who is breast feeding or intends to.
- Allergic to 11C-PiB, or with severe drug allergy history.
- Patient or the family refuses to participate in the study.
II. Alzheimer's disease (AD) patients:
Have other illnesses, including:
- Cognitive disorders caused by cerebrovascular diseases (the decline in cognitive function is closely related to the time of stroke, multiple large-scale necrosis, and severe white matter lesions).
- The main manifestation of dementia is Lewy body dementia
- Symptoms are behavioral variation of frontotemporal dementia.
- The symptoms are obviously semantic progressive aphasia.
- Symptoms are not fluent in primary progressive aphasia.
- Other comorbidities that affect cognitive function (including other active neurological diseases, or non-neurological diseases but the disease or the treatment used will affect cognitive function)
- Patient cannot accept brain magnetic resonance imaging or 11C-PiB PET, such as agitation and inability to cooperate, allergy to contrast agents, hemodynamic instability (blood pressure, pulse, or blood oxygen is not in the normal range), and a heart rhythm regulator has been implanted , Have ever undergone intracranial aneurysm clamp surgery, claustrophobia and hemodynamic instability.
- Pregnant woman or intends to be pregnant in the near future.
- Patient who is breast feeding or intends to.
- Allergic to 11C-PiB, or with severe drug allergy history.
- Patient or the family refuses to participate in the study.
III. Normal controls:
- Patient cannot accept brain magnetic resonance imaging or 11C-PiB PET, such as agitation and inability to cooperate, allergy to contrast agents, hemodynamic instability (blood pressure, pulse, or blood oxygen is not in the normal range), and a heart rhythm regulator has been implanted , Have ever undergone intracranial aneurysm clamp surgery, claustrophobia and hemodynamic instability.
- Pregnant woman or intends to be pregnant in the near future.
- Patient who is breast feeding or intends to.
- Allergic to 11C-PiB, or with severe drug allergy history.
- Patient or the family refuses to participate in the study.
- high risk as assessed by a doctor.
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
- 主な目的:診断
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
---|---|
実験的:アミロイドPET、T807 PET
ペット/CT
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Dynamic PET acquisition for 70 minutes will be acquired after injection of 10±5 mCi 11C-PiB.
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
---|---|---|
PETイメージング
時間枠:3日で
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PET データは、順序付けられたセットの期待値の最大化を使用して再構築され、減衰が修正され、各フレームが評価されて、適切なカウント統計と頭の動きがないことが確認されます。
|
3日で
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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)
一次修了 (予想される)
研究の完了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
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
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。
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