Treatment Interruption After 2-year Antiretroviral Treatment (ART) Initiated During Acute/early HIV In Infancy: A Randomized Trial.
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Treatment interruption (TI) has been safe and durable in some pediatric studies but none have compared TI to continued antiretroviral treatment (ART) following ART initiation in early HIV. The objective of this study was to compare outcomes in TI versus continued ART among early-treated infants.Randomized trial (OPH-03; NCT00428116) METHODS:: The trial included HIV-infected infants who initiated ART at <13 months of age, received ART for 24 months, and, if eligible (CD4 > 25%, normal growth), were randomized to TI vs. continued ART. Children in the TI group re-started ART if they met WHO ART-eligibility criteria. During 18-months post-randomization, primary outcomes were incidence of serious adverse events (SAEs) and growth. CD4, viral load, morbidity, and growth were compared.Of 140 infants enrolled, 121 started ART, of whom 75 completed ≥24 months ART and 42 were randomized (21 per arm). ART was initiated at median age 5 months and randomization at 30 months. Among 21 TI children, 14 met ART re-start criteria within 3 months. Randomization was discontinued by DSMB due to low TI durability. At 18 months post-randomization, growth and SAEs were comparable between arms; hypercholesteremia incidence was higher in the continued arm (p = 0.03). CD4% and VL did not differ between arms (CD4% 35% and median VL undetectable (<150 c/ml) in both arms, p = 0.9 for each comparison). No infants had post-treatment viral control.Short TI did not compromise 18-month CD4%, viral control, growth, or morbidity compared to continued ART among infants who started ART in early HIV infection.
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