Understanding the Impact of Lower Dose Medroxyprogesterone Acetate on Female Genital Tract Microbiome and Immunology (2018-present) – Principal Investigator. Funded by Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01 HD096937).

Contraceptive Method and HIV Risk (2018-present) – Principal Investigator. Funded by Eunice Kennedy Shriver National Institute of Child Health and Human Development (R21 HD095708).

Vaginal Inflammatory Markers Study (2017-present) – Principal Investigator. Funded by University of North Carolina at Chapel Hill Center for AIDS Research (P30 AI50410).

A Study to Evaluate the Effectiveness, Pharmacokinetics, Safety, and Acceptability of Sayana® Press when Injected Every Four Months (2016-present) – Principal Investigator. Funded by USAID.

The Evidence for Contraceptive options and HIV Outcomes (ECHO) Trial (2013-present) – Co-Investigator. Co-chair of the biological mechanisms working group. Funded by the Bill and Melinda Gates Foundation and USAID.