Understanding cognitive decline in older adults with Alzheimer's disease

A Cohort Study of Cognitive Decline in Alzheimer Disease

Observational Chinese University of Hong Kong · NCT03946930

This study looks at older adults with Alzheimer's disease to see how different factors like brain scans, blood tests, and physical activity might affect how quickly their thinking skills decline.

Quick facts

Study typeObservational
Enrollment500 (estimated)
Ages65 Years to 92 Years
SexAll
SponsorChinese University of Hong Kong Academic / other
Locations1 site (Hong Kong)
Trial IDNCT03946930 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate the risk factors associated with accelerated cognitive decline in older individuals diagnosed with Alzheimer's disease (AD). It will utilize an ongoing AD registry that includes detailed neurocognitive assessments, lifestyle information, and volumetric MRI brain scans. The study will explore the relationships between MRI brain volumes, serum biomarkers, physical activity, and cognitive decline, with the goal of identifying independent risk factors that contribute to the progression of AD.

Who should consider this trial

Good fit: Ideal candidates for this study are older adults diagnosed with Alzheimer's disease who can communicate in Cantonese.

Not a fit: Patients who are unable to provide reliable information due to lack of a family caregiver or those who refuse blood sampling may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of cognitive decline in patients with Alzheimer's disease.

How similar studies have performed: While there have been studies exploring cognitive decline in Alzheimer's disease, this specific approach focusing on MRI volumes and biomarkers in a cohort setting is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Sufficient Cantonese competency for cognitive test
* Clinical diagnosis of AD
* FAST test staging 3-5

Exclusion Criteria:

* Subjects who refuse blood taking procedure
* No reliable family caregiver informant (person contact at least once a month)

Where this trial is running

Hong Kong

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Alzheimer Disease
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.