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Chongqing Ageing & Dementia Study

Chongqing Ageing & Dementia Cohort Study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600123481
Enrollment
Unknown
Registered
2026-04-27
Start date
2021-05-14
Completion date
Unknown
Last updated
2026-05-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimers disease

Interventions

Clinical Cohort and Community Cohort:None

Sponsors

Daping Hospital, the Third Military Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
50 Years to No maximum

Inclusion criteria

Inclusion criteria: Clinical Cohort 1. Aged 50 years or above; 2. Voluntary participation in this study, with signed informed consent from the participant and/or their legal guardian. This includes: (1) 1,000 patients with Aß(+) AD meeting the AA (2024) diagnostic criteria; (2) 1,000 patients with MCI due to AD meeting the AA (2024) diagnostic criteria; (3) 1,000 patients with preclinical AD meeting the AA (2024) diagnostic criteria; (4) 500 cognitively normal controls without cognitive impairment, including: 1). Individuals with subjective memory complaints (SMC); 2). Individuals without subjective memory complaints (NMC); (5) 500 patients with other types (non-AD) of MCI; (6) 500 patients with other types (non-AD) of dementia; (7) 500 patients with other neurodegenerative diseases, such as Parkinson's disease or Huntington's disease. Community Cohort 1.Aged 50 years or above, both male and female; 2.In good general health, without interference from other diseases expected during the study period; 3.Visual and auditory acuity (including corrected vision and hearing) sufficient to undergo neuropsychological testing; 4.Participants are not pregnant, lactating, or of childbearing potential (i.e., women must be postmenopausal for at least two years or have undergone sterilization surgery); 5.Willingness and ability to participate in longitudinal biomarker and imaging studies; 6.Consent to blood collection for biomarker testing; 7.Consent to share genomic data and biomarker samples; 8.Voluntary participation in this study, with signed informed consent from the participant and/or their legal guardian.

Exclusion criteria

Exclusion criteria: 1. Individuals with other significant neuropsychiatric disorders indicated by the Hamilton Depression/Anxiety Rating Scale, Neuropsychiatric Inventory (NPI), or medical history; 2. Central nervous system infections, head trauma, epilepsy, multiple sclerosis, toxic-metabolic diseases, intracranial tumors, etc.; 3. Systemic infections; severe cardiac diseases such as coronary heart disease, cardiac insufficiency, atrial fibrillation; severe hepatic or renal insufficiency; severe hematological diseases, coagulation disorders; advanced malignant tumors, etc.; 4. Allergy to 11C-PIB, FDG, AV45, AV-1, MK6240 tracers or gadolinium-based contrast agents; 5.Violation of study rules, poor compliance, or refusal to participate in this project..

Design outcomes

Primary

MeasureTime frame
Aß42;pTau217;Activity of Daily Living Scale Score;

Secondary

MeasureTime frame
Incidence;Aß-PET;Tau-PET;Aß40;Mini-Mental State Examination;Montreal Cognitive Assessment Score;Clinical Dementia Rating Scale Score;Ascertain Dementia 8-item Questionnaire; Community Screening Instrument for Dementia;

Countries

China

Contacts

Public ContactWang Yanjiang

Daping Hospital, the Third Military Medical University

wayaja@163.com+86 150 2365 3506

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: May 7, 2026