The A4 study: Now is the time to join the fight to prevent Alzheimer's disease.

Interested in learning more?

Find a location near you.
To learn more about participating in the A4 study, please call:
1-844-A4STUDY

You can call the National Institute on Aging at 1-800-438-4380. They will have accurate and timely information about sites that are ready to screen potential A4 study participants.

Download Additional Resources
A4 Study Tri-fold Brochure A4 Study One-Page Flyer
Watch the A4 Study Video

Hear directly from Dr. Reisa Sperling and other Alzheimer’s disease experts explain the A4 study, share what makes the A4 study so unique, and why now is the time to participate.

Watch the A4 Study Video

A4 in the News
Associated Press, June 10, 2014
Washington Post, June 19, 2014
AARP blog, June 17, 2014
DC's NBC-4 News, June 19, 2014

A4 Study Organizers

The A4 study is a landmark public-private partnership, funded by the National Institute on Aging/NIH, Eli Lilly and Company, and several philanthropic organizations. The A4 trial is coordinated by the University of Southern California’s Alzheimer’s Therapeutic Research Institute, with study sites in multiple locations.

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©2014 A4 Study