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Dorward, Jienchi; Sookrajh, Yukteshwar; Lessells, Richard; Bulo, Elliot; Naidoo, Jessica; Naidoo, Keshani; Bodley, Nicola; Khanyile, Mlungisi; Van Vuuren, Claudia Jansen; Moodley, Pravikrishnen; Samsunder, Natasha; Lewis, Lara; Drain, Paul K; Hayward, Gail; Butler, Christopher C; Garrett, Nigel
Journal of acquired immune deficiency syndromes, 08/2023, Volume: 93, Issue: 5Journal Article
Data are required regarding the feasibility of conducting a randomized trial of point-of-care viral load (VL) testing to guide management of HIV viremia and to provide estimates of effect to guide potential future trial design. Two public South African clinics during the dolutegravir-based antiretroviral therapy (ART) rollout. We randomized adults receiving first-line ART, with recent VL ≥1000 copies/mL, in a 1:1 ratio to receive point-of-care Xpert HIV-1 VL versus standard-of-care laboratory VL testing after 12 weeks. Feasibility outcomes included proportions of eligible patients enrolled and completing follow-up and VL process outcomes. Estimates of effect were assessed using the trial primary outcome of VL <50 copies/mL after 24 weeks. From August 2020 to March 2022, we enrolled 80 eligible participants, an estimated 24% of those eligible. 47 of 80 (58.8%) were women, and the median age was 38.5 years (interquartile range IQR, 33-45). 44 of 80 (55.0%) were receiving dolutegravir, and 36 of 80 (465.0%) were receiving efavirenz. After 12 weeks, point-of-care participants received VL results after median 3.1 hours (IQR 2.6-3.8), versus 7 days (IQR 6-8, P < 0.001) in standard of care. Twelve-week follow-up VL was ≥1000 copies/mL in 13 of 39 (33.3%) point-of-care participants and in 16 of 41 (39.0%) standard-of-care participants; 11 of 13 (84.6%) and 12 of 16 (75.0%) switched to second-line ART. After 24 weeks, 76 of 80 (95.0%) completed follow-up. 27 of 39 (69.2% 95% CI: 53.4 to 81.4) point-of-care participants achieved VL <50 copies/mL versus 29 of 40 (72.5% 57.0 to 83.9) standard-of-care participants. Point-of-care participants had median 3 (IQR, 3-4) clinical visits versus 4 (IQR, 4-5) in standard-of-care participants ( P < 0.001). It was feasible to conduct a trial of point-of-care VL testing to manage viremia. Point-of-care VL lead to quicker results and fewer clinical visits, but estimates of 24-week VL suppression were similar between arms. Pan African Clinical Trials Registry: PACTR202001785886049.
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