Mind Your Behind

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The Prevent Anal Cancer (PAC) Study

There is a much greater risk for anal cancer among gay and bisexual men, especially gay and bisexual men who are HIV-positive. But we don’t know the best way for people to get screened.

The PAC Study aims to change that. This study will find ways to detect anal cancer earlier, when it’s much easier to treat.

We’re enrolling gay and bisexual men and transgender persons in Chicago, Houston, and Milwaukee into a study with two or three clinic visits lasting up to one year. Participants will receive up to $130 to help us learn better ways to find anal cancer.

This study is funded by the National Cancer Institute at the National Institutes of Health. It is being led by researchers at the Medical College of Wisconsin in partnership with community-based organizations, community clinics, and other universities.

If you would like to take the eligibility survey, please click below. If you would like more information about the study, you’ll find the current consent forms below and other information through the website. You can also contact us.

Take The Eligibility Survey Now

See if you are eligible to participate in the PAC Study. 

Study Consent Forms

We invite you to read the study consent form before a virtual consenting appointment.

Learn More

Click on each + to take the eligibility survey, learn more about the study team, and find out more about anal cancer and screening.

white older gay men
Are you Eligible to Participate?
See if you are eligible to participate in the PAC Study. 


About Anal Cancer: Information, Data & Resources 
If you would like to learn more about anal cancer, you can use the links below to access resources on anal cancer.

The Bottom Line
Anal Cancer Information – University of California, San Francisco
National Cancer Institute – Anal Cancer

Meet the Study Team Leads

Christopher Ajala, MD, MPH, Clinical Research Coordinator

Bridgett Brzezinski, MA, Clinical Research Coordinator

DeJuan Washington, MEd, Clinical Research Coordinator


Learn More About the Study Team

Contact Us & Get Involved

General Questions

PAC Study, Medical College of Wisconsin: PACStudy@mcw.edu

Or you can contact the PAC Study team lead in each city:

In Houston - Christopher Ajala: cajala@mcw.edu or (414) 882-0085

In Chicago - DeJuan Washington: dejuanw@medicine.bsd.uchicago.edu or (773) 597-8001

In Milwaukee - Bridgett Brzezinski: bbrzezinski@mcw.edu or (414) 882-0131