The Prevent Anal Cancer (PAC) Study

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If you don't want to participate in the study, but would like to learn more about anal cancer, you can use the links below to access resources on anal cancer.

Learn more at the National Cancer Institute anal cancer website.
Visit the UCSF Anal Cancer Information website.
Visit The Bottom Line organization website.

Meet the PAC study team at the Medical College of Wisconsin:

Alan Nyitray, PhD, Principal Investigator and Professor, MCW Cancer Center and Center for AIDS Intervention Research

Alan Nyitray is an Associate Professor of Epidemiology at the Medical College of Wisconsin in Milwaukee. His research has focused on the natural history of anal HPV infection and, most recently, anal cancer screening. The anal HPV epidemiology research has included studies with gay, bisexual, and other men who have sex with men, heterosexual couples, and heterosexual men. His current research assesses protocols for anal precancer and cancer screening. He has published more the 50 peer-reviewed papers on these topics and is funded by the National Cancer Institute. Prior to his HPV research, Nyitray delivered HIV prevention in a service capacity for 15 years.

Christopher Ajala, MD, MPH, Clinical Research Coordinator

Christopher is a clinical researcher who supports Dr. Nyitray, coordinating the PAC anal cancer screening studies at MCW. Christopher has content expertise in scientific principles and research methodology. He has a master’s degree in Public Health Administration and Policy from the University of Minnesota School of Public Health, Twin Cities. In addition to his public health experience, he is a trained physician from Nigeria.

Bridgett Brezinski, MA (Master of Arts in Health Communication), Community Research Assistant

Bridgett is a Community Research Assistant III with Dr. Alan Nyitray. She supports the PAC studies looking at anal cancer prevention, working at the MCW Cancer Center, the Center for AIDS Intervention Research, and with five Milwaukee clinics, supporting participants and the community. Bridgett’s undergraduate background is in Corporate Communication and Women’s Studies. She also holds a master’s degree in Health Communication with a research focus on sexual health and physician-patient communication.

Research publications, presentations, and other media.

PAC Study Principal Investigator Dr. Alan Nyitray featured for his work with the LGBTQ+ community with colleague Dr. Malika Siker.