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Clinical Study of Plasma Aß34 as a Biomarker for Alzheimer's Disease

Clinical Study of Plasma Aß34 as a Biomarker for Alzheimer's Disease

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600123739
Enrollment
Unknown
Registered
2026-04-29
Start date
2026-04-30
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

Alzheimer's Disease

Interventions

Sponsors

The Third Affiliated Hospital of Southern Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
50 Years to 85 Years

Inclusion criteria

Inclusion criteria: 1. Aged 50–85 years; 2. Completed an Amyloid-PET scan within 3 months before and after enrollment; 3. Met the diagnostic criteria for Alzheimer’s disease (AD); 4. The patient or legal guardian provided informed consent to participate in this study and signed the informed consent form.

Exclusion criteria

Exclusion criteria: 1. Individuals with a history of psychiatric disorders or congenital mental retardation; 2.Patients with severe cardiac, pulmonary, hepatic, or renal dysfunction, severe endocrine disorders, severe infectious diseases, or toxic encephalopathy; 3. Patients with other neurological disorders that may cause cognitive impairment, such as stroke, Parkinson’s disease, brain tumors, etc.; 4. Patients with depression; 5.Individuals with a history of head trauma or use of specific medications within the past 6 months; 6. Individuals with confirmed alcohol or drug dependence within the past 6 months; 7.Patients who did not undergo MRI, or those with MRI findings including: Fazekas scale score >= 3 for white matter lesions, 2 or more lacunar infarcts, or lesions located in critical brain regions; 8.Patients who received monoclonal antibody therapy targeting amyloid-beta (Aß) (e.g., aducanumab, lecanemab, donanemab, etc.) prior to enrollment; 9. Patients whose blood test results did not meet the requirements of this study; 10. Patients with incomplete baseline data. Individuals with depression; Individuals with a history of head trauma or special drug use within the past 6 months; Individuals confirmed to have alcohol or drug dependence within the past 6 months; Individuals who have not completed MRI examination, or those with the following lesions detected by MRI: cerebral white matter lesions with a Fazekas scale score = 3, or presence of 2 or more lacunar infarction lesions, or lesions located in key brain regions; Individuals whose blood test criteria do not meet the requirements of this study; Individuals with incomplete baseline data.

Design outcomes

Primary

MeasureTime frame
Plasma Aß34 level;

Secondary

MeasureTime frame
Amyloid-PET;

Countries

China

Contacts

Public ContactTianming Lv

The Third Affiliated Hospital of Southern Medical University

lutianming@139.com+86 20 6278 4373

Outcome results

None listed

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