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Recruiting NCT03638583

NCT03638583 Alzheimer Prevention Trials (APT) Webstudy

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Clinical Trial Summary
NCT ID NCT03638583
Status Recruiting
Phase
Sponsor University of Southern California
Condition Alzheimer Disease
Study Type OBSERVATIONAL
Enrollment 200,000 participants
Start Date 2017-12-20
Primary Completion 2026-04-30

Eligibility & Interventions

Sex All sexes
Min Age 50 Years
Max Age 85 Years
Study Type OBSERVATIONAL

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.

This trial targets 200,000 participants in total. It began in 2017-12-20 with a primary completion date of 2026-04-30.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The goal of the Alzheimer Prevention Trials (APT) Webstudy is to accelerate enrollment for Alzheimer's disease (AD) clinical trials by identifying and tracking individuals who may be at higher risk for developing AD dementia.

Eligibility 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.

Contact & Investigator

Central Contact

APT Webstudy Team

✉ info@aptwebstudy.org

📞 858-877-3135

Principal Investigator

Paul Aisen, MD

PRINCIPAL INVESTIGATOR

USC ATRI

Frequently Asked Questions

Who can join the NCT03638583 clinical trial?

This trial is open to participants of all sexes, aged 50 Years or older, up to 85 Years, studying Alzheimer Disease. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT03638583 currently recruiting?

Yes, NCT03638583 is actively recruiting participants. Contact the research team at info@aptwebstudy.org for enrollment information.

Where is the NCT03638583 trial being conducted?

This trial is being conducted at San Diego, United States.

Who is sponsoring the NCT03638583 clinical trial?

NCT03638583 is sponsored by University of Southern California. The principal investigator is Paul Aisen, MD at USC ATRI. The trial plans to enroll 200,000 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: July 2026  ·  Data Methodology