NCT06742944Completed
Draw-10: A Weekly Blood Draw Study to Understand the Biological Variability of Plasma pTau-217
Source: ClinicalTrials.gov · Last updated 9 Dec 2025
Brief summary (registry, in English)
This is an observational study that will serially collect 10 plasma samples over the course of 9 weeks from the same individuals to assess fluctuations in blood biomarker results.
- Status (registry)
- Completed
- Study type
- Observational
- Enrollment
- 100 (actual)
- First submitted
- 16 Dec 2024
- Start date
- 27 Jan 2025
- Primary completion date
- 27 Aug 2025
- Lead sponsor
- Banner Health
- Diseases
- Alzheimer disease
- NCT number
- NCT06742944
What you commit to
- Study type: Observational
- Participants enrolled: 100
- From 27 Jan 2025 to the primary completion date, 27 Aug 2025
- 2 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Plans to begin any new treatment or is having surgery during the 9-week draw timeframe
- Currently enrolled in a clinical trial using an investigational drug
Who the study is looking for
- able and wiling to provide informed consent
- Aged 50-80 years old at the time of signing study consent; participants aged 50-59 years will be no more than 20% of the total study population
- Has normal cognition or mild impairment at screening MoCA by a score of greater than or equal to 18; participants with a Montreal Cognitive Assessment (MoCA Test) score between 18-25 will be no more than 20% of the total study population
- able and wiling to fully comply with study procedures defined in the protocol
- Written and spoken fluency in English
Age in the registry: 50 years to 80 years · Sex: All · Accepts healthy volunteers
Sites (2)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Banner Alzheimer's Institute Coordinator of this site? Confirm its status | Phoenix | United States | Unknown status |
| Banner Alzheimer's Institute Tucson Coordinator of this site? Confirm its status | Tucson | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.