Blood Biomarkers from Internal Jugular Vein for the Diagnosis of Alzheimer's Disease

December 28, 2024 updated by: Yan-Jiang Wang, Daping Hospital and the Research Institute of Surgery of the Third Military Medical University

Performance of Blood Biomarkers in Different Circulation Sites on Detecting Alzheimer's Pathologies - the Delta Study

The goal of this observational study is to explore the diagnostic performance of blood biomarkers from the internal jugular vein for the diagnosis of Alzheimer's disease (AD) in patients with cognitive symptoms or concerns. The main question it aims to answer is:

Whether blood biomarkers from the internal jugular vein outperform those from the median cubital vein which is the routine site for venous blood collection?

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
300

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Chongqing
      • Chongqing, Chongqing, China, 400042
        • Daping Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Patients with cognitive symptoms or concerns were consectively recruited from memory clinics.

Description

Inclusion Criteria:

  1. age: 40-90 years old (including 40 and 90 years);
  2. patients with cognitive complaints or concerns;
  3. Willing and able to comply with all aspect of the protocol and provide written informed consent. If a subject lacks capacity to consent in the investigator's opinion, the subject's assent should be obtained, if required in accordance with local laws, regulations and customs, plus the written informed consent of a legal representative should be obtained (capacity to consent and definition of legal representative should be determined in accordance with applicable local laws and regulations).

Exclusion Criteria:

  1. Severe medical conditions which are not stably and could affect the subject's safety;
  2. Presence of contraindications for PET examination, cerebrospinal fluid or blood collection;
  3. Unwilling and refuse to participate in this study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Aβ PET (+)
Diagnostic test: blood biomarkers from the internal jugular vein
blood biomarkers (Aβ42/40, p-tau217, p-tau181, NFL, GFAP, etc.) from the internal jugular vein
Aβ PET (-)
Diagnostic test: blood biomarkers from the internal jugular vein
blood biomarkers (Aβ42/40, p-tau217, p-tau181, NFL, GFAP, etc.) from the internal jugular vein

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Diagnostic performance
Time Frame: 5 years from the enrollment of the first participant
area under the ROC curve, accuracy, sensitivity, specificity, positive predictive value, negative predictive value
5 years from the enrollment of the first participant

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Correlation with CSF biomarkers
Time Frame: 5 years from the enrollment of the first participant
Correlations of blood biomarkers (Aβ42, Aβ40, Aβ42/40 ratio, p-tau217, p-tau181, p-tau217/Aβ42 ratio, p-tau181/Aβ42 ratio, NFL, GFAP, etc.) with CSF biomarkers (Aβ42，Aβ40， Aβ42/40 ratio, p-tau181，p-tau181/Aβ42 ratio, GFAP，NFL, etc.).
5 years from the enrollment of the first participant
Correlation with brain Aβ burden
Time Frame: 5 years from the enrollment of the first participant
Correlations of blood biomarkers (Aβ42, Aβ40, Aβ42/40 ratio, p-tau217, p-tau181, p-tau217/Aβ42 ratio, p-tau181/Aβ42 ratio, NFL, GFAP, etc.) with brain Aβ burden measured by Aβ PET.
5 years from the enrollment of the first participant
Correlation with brain Tau burden
Time Frame: 5 years from the enrollment of the first participant
Correlations of blood biomarkers (Aβ42, Aβ40, Aβ42/40 ratio, p-tau217, p-tau181, p-tau217/Aβ42 ratio, p-tau181/Aβ42 ratio, NFL, GFAP, etc.) with brain tau burden measured by Tau PET.
5 years from the enrollment of the first participant
Effects of comorbidities on blood biomarkers and diagnostic performance
Time Frame: 5 years from the enrollment of the first participant
Associations (beta value) of comorbidites (hypertension, diabetes, history of stroke or myocardial infarction, hepatic or renal insufficiency, etc.) with the levels of blood biomarkers (Aβ42, Aβ40, Aβ42/40 ratio, p-tau217, p-tau181, p-tau217/Aβ42 ratio, p-tau181/Aβ42 ratio, NFL, GFAP, etc.) and their diagnostic performance (area under the curve, accuracy, sensitivity, specificity, positive predictive value, negative predictive value).
5 years from the enrollment of the first participant

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Daping Hospital and the Research Institute of Surgery of the Third Military Medical University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 21, 2019

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 30, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 30, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 23, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 28, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 25, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 28, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • IJV-AD-24

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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