Welcome to the Adolescent Medicine Trials Network for HIV Interventions (ATN)
Youth-Centered Research
Community-Driven Change
Youth-Centered Research | Community-Driven Change
What is the ATN?
The Adolescent Medicine Trials Network for HIV Interventions (ATN) conducts innovative and collaborative research that explores promising strategies to support sexual health among adolescents and young adults ages 13 through 24.
The ATN is the only research network in the United States devoted solely to HIV prevention and care for youth, bringing together adolescents, communities, and researchers to enrich the health and well-being of youth and young adults.
Get Involved
You can help make HIV prevention and care options more accessible for youth by participating in our research.
Learn more about each of our active studies and find out if you qualify!
Are you a researcher, academic, or policymaker looking to dive deeper into the data or explore events for a scientific audience? Visit the ATN Connect website.
By the Numbers
Community Toolbox
The ATN is committed to sharing our research back to the community.
We tailor our research findings to meet the needs of different audiences through a range of materials, such as infographics for youth, toolkits and resources for community organizations, and peer-reviewed journal publications for researchers.
Featured News
ATN Launches the Screen2Prevent Study!
How can we make HIV testing easier and more accessible for young people—especially in places they already go for care?
The Screen2Prevent (S2P) study is exploring HIV screening for youth who are seen in emergency departments.
By testing three different approaches—universal, opt-out, and focused screening—the S2P study aims to find what works best to reach more young people. The study also uses a quick digital survey to identify who may benefit from PrEP, plus a texting tool to help connect them to prevention services.
Participation in this study is limited to people who receive care at specific emergency departments.
Published June 2026
The foXXy doxy Study is Open for Enrollment!
The foXXy doxy study opened for enrollment in early 2026!
Doxycycline is an FDA-approved antibiotic that is widely used to prevent and treat certain sexually transmitted infections (STIs) like gonorrhea, chlamydia, and syphilis. Taking doxycycline after condomless sex (on-demand) or weekly, a strategy called “DoxyPEP,” is approved for use among some populations, like men.
The foXXy doxy study aims to close a gap in data by determining whether DoxyPEP is effective for women, too.
The ATN is currently enrolling participants in Chicago, San Francisco, Tampa, and Washington, D.C. Stay tuned—we’ll be enrolling in more cities soon!
Published Jan. 2026
Three New ATN Scholars Selected
The ATN Scholars Program provides under-represented scientists who are within 10 years of completing a terminal degree, postdoc, or first medical residency with the skills, knowledge, and network to excel as independent investigators in adolescent HIV prevention.
Three new scholars joining the ATN are:
April Bell, PhD, MPH
University of California, San Francisco
Kevon-Mark Phillip Jackman, DrPH, MPH
Johns Hopkins University
Juan Pablo Zapata, PhD
Northwestern University
Published Sept. 2025
Stay In-the-Know!
Receive email alerts about research findings or opportunities to participate in new studies.
We also share findings and research opportunities on social media. Follow @ATNresearch!
