Normative Values for Cognitive Testing and Alzheimer's Imaging Biomarkers in Young Adults
Public ClinicalTrials.gov record NCT01609335. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Normative Values for Cognitive Testing and Alzheimer's Imaging Biomarkers in Young Adults (30-49yo)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Biomarkers of Alzheimer's disease (AD) occupy an essential place in recently formulated diagnostic criteria for AD where their role is to identify the pathophysiological processes underlying cognitive impairment or to predict time to dementia. Three of these biomarkers are brain imaging tests (amyloid PET, fludeoxyglucose (FDG) PET, and structural MRI). In order to effectively use AD biomarkers for diagnostic and prognostic purposes, continuous values much be divided into normal and abnormal ranges. This requires that a cut point(s) be established in the continuous distribution of values for each biomarker. The investigators objective in this proposal is to obtain imaging biomarker data in a group of individuals who are appropriate for establishing normative values for AD biomarkers. The investigators believe the most valid approach to establishing biomarker cut points is to base them on the upper bound of the range observed in young to early-middle-age subjects in whom the presence of occult AD pathology is extremely unlikely. Based on a large volume of community-based autopsy data, that upper age limit would be about 50 years old. The lower age bound for a group of subjects used to establish normative AD biomarker values would have to be based on considerations of brain maturation, which may continue into the middle- to late-20s. Thus, taking the above into consideration, the ideal age range for establishing normative AD imaging biomarker data (amyloid PET, FDG PET, and structural MRI) may be ages 30-49 years old.
Study identification
- NCT ID
- NCT01609335
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 41 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 30 Years to 49 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 30, 2012
- Primary completion
- Jul 31, 2013
- Completion
- Jul 31, 2013
- Last update posted
- Aug 7, 2014
2012 – 2013
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Mayo Clinic Rochester | Rochester | Minnesota | 55905 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01609335, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 7, 2014 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01609335 live on ClinicalTrials.gov.