Web-based program to identify individuals at risk for Alzheimer's disease

Alzheimer Prevention Trials (APT) Webstudy

Observational University of Southern California · NCT03638583

This study is testing a web-based program to find people at higher risk for Alzheimer's disease so they can be invited to join clinical trials for new treatments.

Quick facts

Study typeObservational
Enrollment200000 (estimated)
Ages50 Years to 85 Years
SexAll
SponsorUniversity of Southern California Academic / other
Locations1 site (San Diego, California)
Trial IDNCT03638583 on ClinicalTrials.gov

What this trial studies

The Alzheimer Prevention Trials (APT) Webstudy aims to enhance enrollment in Alzheimer's disease clinical trials by identifying individuals at higher risk for developing dementia. Participants will register online, complete cognitive tests, and provide demographic information. They will return quarterly for follow-up assessments, and based on their risk scores, some may be invited for in-person evaluations at clinical trial sites. This approach combines web-based assessments with biomarker testing to refine the selection of high-risk individuals for further studies.

Who should consider this trial

Good fit: Ideal candidates are individuals aged 50 and older who show no signs of dementia and are willing to participate in remote cognitive testing.

Not a fit: Patients who already have a diagnosis of dementia will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to earlier identification and intervention for individuals at risk of developing Alzheimer's disease.

How similar studies have performed: Other studies have shown promise in using web-based assessments for cognitive health, but this specific approach is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* male or female at least 50 years of age
* no evidence of dementia
* willing to participate in remote longitudinal cognitive testing and possible referral for biomarker assessment based on risk

Exclusion Criteria:

* N/A. Anyone can register for the APT Webstudy, however, only individuals identified using the risk algorithm will be referred for in-person biomarker assessments.

Where this trial is running

San Diego, California

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Alzheimer DiseaseDementiaAlzheimer'sPreventionWeb-Based
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.