Beyond "Vessels and Vectors": A Global Review of Registered HIV-Related Clinical Trials with Pregnant Women

Background Since the early 1990s, the HIV research agenda has prioritized to some degree the inclusion of pregnant women. However, concerns remain regarding the extent to which pregnant women's own health needs are addressed, representation in trials of HIV preventives or treatments for comorbidities, and equitable study of newer medications during pregnancy. Methods We employed a keyword search of the International Clinical Trials Registry Platform to identify interventional HIV-related trials conducted with pregnant women between January 2001 and December 2015. Retained trials were coded according to several key variables (e.g., study endpoints, trial phase, study compound) and analyzed using information provided in the database. Results In total, 63 trials studying use of a pharmacological compound during pregnancy were conducted across 35 countries and sponsored by 74 unique organizations, including pharmaceutical companies. Of trials analyzed, 86% (n = 54) listed maternal outcomes as a primary endpoint. More than 35% (n = 23) of trials assessed pharmacokinetic parameters of a study compound during pregnancy. Of 45 trials specifically studying HIV-related medication(s), just 4% (n = 2) focused on HIV preventives. One trial studied tuberculosis in HIV-infected pregnant women; 11 studied malaria. On average, medications were studied during pregnancy 4.4 years after licensure. Conclusions Our findings demonstrate that trials with pregnant women are conducted across a range of countries and sponsors, and much progress has been made to better address pregnant women's own health needs in HIV research. However, our findings confirm other concerns, for example, lack of HIV preventives studied and the lag between medication licensure and study during pregnancy.