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Cancer Prevention Study-3 (CPS-3)

The Cancer Prevention Study-3 (CPS-3) is a large, geographically and racially/ethnically diverse US cohort of 300,000 participants who were cancer free when they enrolled between 2006 to 2013 and who are continuing to be studied.

CPS-3 News & Announcements

2024 Triennial Survey Has Launched
Online survey ready for you to answer.

Previous News: CPS-3 Participants Newsletter Archive

English and Español 

CPS-3 Participant Portal

We're launching the Participant Portal with a whole new design and platform.

Stock image of a person's hands working on a laptop, black frame eyeglasses and smartphone in the foreground

Substudies & Tools

In addition to the triennial follow-up surveys we send, we also invite CPS-3 participants to volunteer for substudies, which allow smaller cohorts to collect more detailed information for more targeted research about specific risk factors for cancer, such as physical activity.

Why Our Participants Remain Dedicated to CPS-3

There's no better way to understand the impact of CPS-3 on cancer research than to hear some participants and researchers talk about their motivation for becoming involved and why they're committed for the long haul"

Alpa V. Patel, PhD

Senior Vice President, Population Science

American Cancer Society

asian woman wearing turquoise patterned shirt

How CPS-3 Participants Are Contributing to Cancer Research

Many studies published by American Cancer Society researchers and other researchers across the United States use data from the Cancer Prevention Studies (CPS-II and CPS-3) and substudies. 

Here are some recent articles on cancer.org that describe such studies. We couldn't have made these findings without participants who took the time and made the effort to answer surveys, wear accelerometers, and supply samples of blood, urine, and saliva.

Contact Us

CPS-3 participants: 
CPS3@cancer.org
888-604-5888 Mon.-Fri. 9 AM – 5 PM EST 
CPS-3 FAQs

Researchers:
Learn about Data Access Policies and Procedures

Other inquiries:
Contact: Alpa V. Patel, PHD, Senior Vice President, Population Science
alpa.patel@cancer.org