评估Aβ和 tau 蛋白联合 PET显像在阿尔茨海默病、路易体痴呆鉴别诊断中的效能

注册号:

Registration number:

ChiCTR2600123495 

最近更新日期:

Date of Last Refreshed on:

2026-04-27 15:09:17 

注册时间:

Date of Registration:

2026-04-27 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

评估Aβ和 tau 蛋白联合 PET显像在阿尔茨海默病、路易体痴呆鉴别诊断中的效能

Public title:

Evaluation of the Diagnostic Efficacy of Combined Aβ and Tau Protein PET Imaging in Differentiating Alzheimer's Disease from Dementia with Lewy Bodies

注册题目简写:

English Acronym:

研究课题的正式科学名称:

评估Aβ和 tau 蛋白联合 PET显像在阿尔茨海默病、路易体痴呆鉴别诊断中的效能

Scientific title:

Evaluation of the Diagnostic Efficacy of Combined Aβ and Tau Protein PET Imaging in Differentiating Alzheimer's Disease from Dementia with Lewy Bodies

研究课题代号(代码):

Study subject ID:

在二级注册机构或其它机构的注册号:

The registration number of the Partner Registry or other register:

申请注册联系人:

常燕敏 

研究负责人:

常燕敏 

Applicant:

Yanmin Chang 

Study leader:

Chang Yanmin 

申请注册联系人电话:

Applicant telephone:

+86 29 85324262

研究负责人电话:

Study leader's
telephone:

+86 29 85324262

申请注册联系人传真 :

Applicant Fax:

研究负责人传真:

Study leader's fax:

申请注册联系人电子邮件:

Applicant E-mail:

changym2023@xjtu.edu.cn

研究负责人电子邮件:

Study leader's E-mail:

changym2023@xjtu.edu.cn

申请单位网址(自愿提供):

Applicant website(voluntary supply):

研究负责人网址(自愿提供):

Study leader's website(voluntary supply):

申请注册联系人通讯地址:

中国陕西省西安市雁塔区雁塔西路277号

研究负责人通讯地址:

中国陕西省西安市雁塔区雁塔西路277号

Applicant address:

277 Yanta West Road, Yanta District, Xi 'an, Shaanxi, China

Study leader's address:

277 Yanta West Road, Yanta District, Xi 'an, Shaanxi, China

申请注册联系人邮政编码:

Applicant postcode:

研究负责人邮政编码:

Study leader's postcode:

申请人所在单位:

西安交通大学第一附属医院

Applicant's institution:

The First Affiliated Hospital of Xi'an Jiaotong University

研究负责人所在单位:

西安交通大学第一附属医院

Affiliation of the Leader:

The First Affiliated Hospital of Xi'an Jiaotong University

是否获伦理委员会批准:

Approved by ethic committee:

Yes

伦理委员会批件文号:

Approved No. of ethic committee:

2026伦审医研字第(0204)号 No:XJTU1AF2026LSYY-0204

伦理委员会批件附件:

Approved file of Ethical Committee:

查看附件View

批准本研究的伦理委员会名称:

西安交通大学第一附属医院医学伦理委员会

Name of the ethic committee:

Medical Ethics Committee of the First Affiliated Hospital of Xi 'an Jiaotong University

伦理委员会批准日期:

Date of approved by ethic committee:

2026-03-18 00:00:00

伦理委员会联系人:

易秋月

Contact Name of the ethic committee:

Yi Qiuyue

伦理委员会联系地址:

中国陕西省西安市雁塔区雁塔西路277号

Contact Address of the ethic committee:

277 Yanta West Road, Yanta District, Xi 'an, Shaanxi, China

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 29 85323473

伦理委员会联系人邮箱:

Contact email of the ethic committee:

yqy0118@163.com

研究实施负责(组长)单位:

西安交通大学第一附属医院

Primary sponsor:

The First Affiliated Hospital of Xi'an Jiaotong University

研究实施负责(组长)单位地址:

中国陕西省西安市雁塔区雁塔西路277号

Primary sponsor's address:

277 Yanta West Road, Yanta District, Xi 'an, Shaanxi, China

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

陕西

市(区县):

Country:

China

Province:

Shaanxi

City:

单位(医院):

西安交通大学第一附属医院

具体地址:

中国陕西省西安市雁塔区雁塔西路277号

Institution
hospital:

The First Affiliated Hospital of Xi'an Jiaotong University

Address:

277 Yanta West Road, Yanta District, Xi 'an, Shaanxi, China

经费或物资来源:

自选课题(自筹)

Source(s) of funding:

Investigator-initiated trial (self-funded)

研究疾病:

阿尔茨海默病、路易体痴呆;认知功能障碍  

Target disease:

Alzheimer's disease, Dementia with Lewy Bodies

研究疾病代码:

Target disease code:

研究类型:

干预性研究

Study type:

Interventional study

研究所处阶段:

其它 

Study phase:

N/A

研究设计:

非随机对照试验 

Study design:

Non randomized control 

研究目的:

明确Aβ和tau PET联合显像在AD、DLB鉴别诊断中的效能。  

Objectives of Study:

To clarify the diagnostic efficacy of combined Aβ and tau PET imaging in differentiating Alzheimer's disease (AD) from dementia with Lewy bodies (DLB).

药物成份或治疗方案详述:

 

Description for medicine or protocol of treatment in detail:

 

纳入标准:

Inclusion criteria

排除标准:

1) 妊娠或哺乳期女性; 2) 严重肝肾功损伤或新发心肌梗死可能危及生命; 3) 病情严重难以配合; 4) 过去10年内,从事电离辐射(例如超过50毫希弗/年)的重大职业暴露; 5) 无法重复静脉穿刺; 6) 有PET和/或MRI禁忌症; 7) 有神经或精神疾病,如严重脑损伤、中风或重度抑郁症等; 8) 参与者存在已确诊的除AD和DLB外其他原因引起的认知损伤; 9) 研究者认为不宜参加本临床研究者。

Exclusion criteria:

1)Women who are pregnant or breastfeeding;
2)Severe hepatic or renal impairment, or new-onset myocardial infarction that may be life-threatening;
3)Severe illness that makes it difficult to comply with study procedures;
4)Significant occupational exposure to ionizing radiation (e.g., >50 mSv/year) within the past 10 years;
5)Inability to undergo repeated venipuncture;
6)Contraindications to PET and/or MRI;
7)Presence of other neurological or psychiatric disorders, such as severe brain injury, stroke, or major depressive disorder;
8)Participants with confirmed cognitive impairment due to causes other than Alzheimer's disease (AD) or dementia with Lewy bodies (DLB);
9)Any other condition that, in the investigator's judgment, makes the participant unsuitable for inclusion in this clinical study.

研究实施时间:

Study execute time:

From 2026-05-13 00:00:00 To 2028-05-13 00:00:00  

征募观察对象时间:

Recruiting time:

From 2026-05-13 00:00:00 To 2028-01-13 00:00:00

干预措施:

Interventions:

组别:

临床诊断AD组

样本量:

60

Group:

Clinically diagnosed AD group

Sample size:

干预措施:

Aβ 及tau PET/CT

干预措施代码:

Intervention:

Aβ and tau PET/CT

Intervention code:

组别:

可能及很可能DLB组

样本量:

30

Group:

Clinically diagnosed possible and probable DLB group

Sample size:

干预措施:

Aβ 及tau PET/CT

干预措施代码:

Intervention:

Aβ and tau PET/CT

Intervention code:

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

陕西 

市(区县):

 

Country:

China

Province:

Shaanxi

City:

单位(医院):

西安交通大学第一附属医院 

单位级别:

三级甲等 

Institution
hospital:

The First Affiliated Hospital of Xi'an Jiaotong University

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

Aβ/tau PET联合视觉评估的总体诊断准确度

指标类型:

主要指标

Outcome:

Overall diagnostic accuracy of visual assessment

Type:

Primary indicator

测量时间点:

After the PET examination is completed and the final diagnosis is confirmed by experts in dementia n

测量方法:

以临床最终诊断为金标准,构建四格表,计算视觉评估的准确度及95%置信区间。

Measure time point of outcome:

After PET and final diagnosis by neurology experts.

Measure method:

Using the final clinical diagnosis as the gold standard, construct a fourfold table to calculate the accuracy of visual assessment and its 95% confidence interval.

指标中文名:

视觉评估的灵敏度、特异度、阳性预测值、阴性预测值

指标类型:

次要指标

Outcome:

Sensitivity, specificity, PPV, NPV of visual assessment

Type:

Secondary indicator

测量时间点:

PET检查完成并根据神经内科痴呆方向的专家最终确定诊断后

测量方法:

以临床最终诊断为金标准,构建四格表计算视觉评估的灵敏度、特异度、阳性预测值、阴性预测值

Measure time point of outcome:

After PET and final diagnosis by neurology experts.

Measure method:

Using the final clinical diagnosis as the gold standard, construct a fourfold table to calculate the sensitivity, specificity, positive predictive value, and negative predictive value of visual assessment.

指标中文名:

定量指标的诊断效能(AUC及最佳截断值)

指标类型:

次要指标

Outcome:

AUC and optimal cutoff values of SUVR and Centiloid

Type:

Secondary indicator

测量时间点:

PET检查完成并根据神经内科痴呆方向的专家最终确定诊断后

测量方法:

对SUVR及Centiloid值绘制ROC曲线,计算曲线下面积及最佳截断值

Measure time point of outcome:

After PET and final diagnosis by neurology experts.

Measure method:

Perform ROC curve analysis on SUVR and Centiloid values, calculate the area under the curve (AUC) and the optimal cutoff values.

指标中文名:

安全性指标

指标类型:

次要指标

Outcome:

Safety outcome

Type:

Secondary indicator

测量时间点:

从注射显像剂至检查结束后24小时内

测量方法:

不良事件及严重不良事件采用描述性统计,列表分析发生率;生命体征等进行描述性评估

Measure time point of outcome:

From injection of the imaging agent to 24 hours after completion of the examination.

Measure method:

Descriptive statistics will be used for adverse events and serious adverse events, with incidence rates tabulated; vital signs and other parameters will be assessed descriptively.

指标中文名:

判读者间一致性

指标类型:

次要指标

Outcome:

Inter-reader agreement

Type:

Secondary indicator

测量时间点:

两名核医学医师独立完成视觉评估后

测量方法:

计算Cohen‘s Kappa系数

Measure time point of outcome:

After two nuclear medicine physicians independently complete the visual assessment.

Measure method:

Calculate Cohen's kappa coefficient.

指标中文名:

影像生物标志物与临床评分的相关性

指标类型:

次要指标

Outcome:

Correlation between imaging biomarkers and clinical scores

Type:

Secondary indicator

测量时间点:

获得PET定量指标及相关临床量表评分后

测量方法:

采用Pearson或Spearman相关系数

Measure time point of outcome:

After obtaining PET quantitative metrics and related clinical scale scores.

Measure method:

Using Pearson or Spearman correlation coefficient.

指标中文名:

AD组与DLB组的SUVR及Centiloid值差异

指标类型:

次要指标

Outcome:

Differences in SUVR and Centiloid values between AD and DLB groups

Type:

Secondary indicator

测量时间点:

PET图像定量分析完成后

测量方法:

组间比较采用独立样本t检验或Mann-Whitney U检验

Measure time point of outcome:

After completion of quantitative PET image analysis.

Measure method:

For group comparisons, independent samples t-test or Mann-Whitney U test was used.

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

组织:

Sample Name:

N/A

Tissue:

人体标本去向

其它  

说明

Fate of sample:

0thers  

Note:

征募研究对象情况:

Recruiting status:

尚未开始

Not yet recruiting

年龄范围:

Participant age:

最小 Min age years
最大 Max age years

性别:

男女均可

Gender:

Both

随机方法(请说明由何人用什么方法产生随机序列):

Randomization Procedure (please state who generates the random number sequence and by what method):

None

是否公开试验完成后的统计结果:

Calculated Results after the Study Completed public access:

不公开/Private

盲法:

Blinding:

None

是否共享原始数据:

IPD sharing

否No

共享原始数据的方式(说明:请填入公开原始数据日期和方式,如采用网络平台,需填该网络平台名称和网址):

The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url):

None

数据采集和管理(说明:数据采集和管理由两部分组成,一为病例记录表(Case Record Form, CRF),二为电子采集和管理系统(Electronic Data Capture, EDC),如ResMan即为一种基于互联网的EDC:

病例记录表

Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture:

Case Record Form, CRF

数据与安全监察委员会:

Data and Safety Monitoring Committee:

无/No

注册人:

Name of Registration:

 2026-04-27 15:09:10