Dr. Lisa Haddad, HPTN 104 protocol chair, is the medical director of the Center for Biomedical Research (CBR) at the Population Council and adjunct professor of gynecology and obstetrics at Emory University School of Medicine in Atlanta.

Dr. Nabila El-Bassel, HPTN 094 study co-chair, is a professor at the Columbia University School of Social Work in New York. She is also director of the Social Intervention Group (SIG), director of the Columbia University Center for Healing of Opioid and Substance Use Disorders (CHOSEN), and director of the Columbia University Global Health Research Center of Central Asia (GHRCCA). Dr. El-Bassel has designed and tested many cutting-edge, multilevel HIV/AIDS and drug-use prevention and intervention models.

Dr. Lynda Emel is the HPTN Statistical and Data Management Center's (SDMC) associate director at the Fred Hutchinson Cancer Center in Seattle. Her interests and expertise include effective data collection and management, clinical trial design and operations, research regulations, behavioral research methodology, and research ethics. Dr. Emel has more than 35 years of experience in clinical trial operations and data management and has worked in HIV prevention research since 1997. 

Miria Chitukuta, a member of the HPTN 084 and HPTN 084-01 study protocol teams, is a social and behavioral scientist at the University of Zimbabwe Clinical Trials Research Centre (UZCTRC) in Harare, Zimbabwe. She has extensive experience coordinating and implementing qualitative research programs and has supported several Phase III HIV prevention clinical trials focusing on adolescent girls and women.