Fig. 5: Number of participants needed in future trials to achieve 25%, 35% or 50% post-treatment control (<50 copies/mL) among early-ART and late-ART individuals at day 84 of ATI.

Power calculations to be use for future study designs on how many participants would be needed for either single arm or 1:1 active intervention:placebo randomized controlled trials (RCTs) with 2 groups based on the assumption that the studies would have a power of 90% to detect the indicated differences in post-treatment control (PTC) at a 5% significant level, one-sided. Early-ART (a) and late-ART (b) defined as people who started ART within or beyond 6 months of HIV acquisition. ART antiretroviral therapy, ATI ART interruption, PTC post-treatment control.