According to results from the ongoing Tsepamo study in Botswana, infants born to women who took the integrase inhibitor dolutegravir for HIV infection from conception remained at an elevated risk for neural tube defects, with three in 1,000 born with these conditions. However, the findings, which were presented at the International AIDS Society Conference in Mexico City and published in The New England Journal of Medicine, showed that the risk is significantly lower than previously estimated.

Following these results, WHO strengthened its recommendation for dolutegravir as a first-line treatment for HIV for all populations, including pregnant women and those of childbearing potential.