Abstract

ABSTRACT Introduction HIV is a global disease affecting millions of people. While treatments have improved over the past decades, treatment failure remains a significant issue for treatment experienced patients. Doravirine/islatravir is a new dual therapy regimen with a promising resistance profile and reductions in central nervous system effects. Recent trials have shown non-inferiority compared to current standards of care. However, current research suggests that CD4 counts decrease in an islatravir-dose dependent manner, but more data is needed determine the full extent of this effect at lower doses. Areas Covered Doravirine/islatravir is a therapeutic combination for the treatment of HIV which is currently in Phase 3 trials. This article reviews key studies regarding the safety and efficacy of the combination. Expert Opinion When approved, doravirine/islatravir should be considered for patients who have previously failed treatment due to viral resistance. It expands the selection of two-drug single-pill therapies and introduces a novel mechanism of action to the market. However, more data is needed regarding the effects of islatravir on CD4 counts. ISL doses as low as 0.25 mg proved non-inferior to current treatments. Therefore, evaluation of the long-term efficacy and safety of DOR/ISL should focus on reduced doses of ISL and minimizing CD4 reduction.

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