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Amyloid Beta-peptide 1-40 and Alzheimer's Disease

NCT02770482 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 204

Last updated 2026-01-21

No results posted yet for this study

Summary

The combined measurement of Ab42 and tau protein (total and phosphorylated) in the spinal fluid has been shown to be promising in the diagnosis of Alzheimer's disease (AD), and has justified its inclusion new diagnostic criteria. However, it can sometimes yield discordant results that are not discriminant (isolated variation in Ab42 or P-181 Tau). To answer this challenge, a new marker has been developed in recent years, namely amyloid beta-peptide 1-40 (Aβ40). This marker reflects the patient's total amyloid deposits and is used to calculate the Aβ42/Aβ40 ratio. This ratio measures the relative variation of Aβ42 as compared to the total amyloid burden. Literature data on this topic are sparse and to date, no report has been published evaluating the utility of this marker in the diagnostic strategy for AD.

Conditions

  • Alzheimer Disease

Interventions

BIOLOGICAL

spinal fluid collection

Sponsors & Collaborators

  • CHU de Reims

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2014-06-30
Primary Completion
2018-03-14
Completion
2018-03-14

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02770482 on ClinicalTrials.gov