RCT | Evaluating the viability of dolutegravir monotherapy in primary HIV infection

Summary: The study in focus is a randomized, controlled, non-inferiority trial spanning over 192 weeks, titled “EARLY-SIMPLIFIED”. It evaluated the effect of simplifying combination antiretroviral therapy (cART) to dolutegravir (DTG) monotherapy in patients with early-stage HIV-1 infection. The trial recruited 101 people who had begun cART within 180 days of a documented primary HIV-1 infection with suppressed viral load.

The patients were randomly divided into two groups: DTG monotherapy (n=68) and continued cART (n=33). The primary endpoints were viral failure rates at 48, 96, 144, and 192 weeks. Results revealed no difference in viral response between the two groups at 96 weeks, suggesting non-inferiority of DTG monotherapy. At the end of the trial (192 weeks), no virological failures were recorded in either group.

The study indicates that early initiation of cART during primary HIV infection might permit sustained virological suppression after switching to DTG monotherapy. However, the study was limited by its highly selected patient population and the transition to an observational design after 96 weeks. It provides insight into the potential for minimizing ART toxicity by stratifying patients according to the latent reservoir size or duration of active infection before starting therapy.

Article: Sustained viral suppression with dolutegravir monotherapy over 192 weeks in patients starting combination antiretroviral therapy during primary HIV infection (EARLY-SIMPLIFIED): a randomized, controlled, multi-site, non-inferiority trial – Clinical Infectious Diseases