The impact of age on antiretroviral drug pharmacokinetics in the treatment of adults living with HIV

Expert Opin Drug Metab Toxicol. 2021 Jun;17(6):665-676. doi: 10.1080/17425255.2021.1915285. Epub 2021 Apr 29.

Abstract

Introduction: People living with HIV (PLWH) are aging and will receive life-long treatment: despite substantial improvement in drug efficacy and tolerability, side effects still occur and they can blunt antiretroviral treatment effectiveness. Since age may affect drug exposure and may be associated with side-effects we aimed at reviewing available data on the effect of age on antiretrovirals' pharmacokinetics in adult patients.

Areas covered: We searched public databases and major conference proceedings for data on age and pharmacokinetics/pharmacodynamics in PLWH. We limited our review to currently used drugs and focused on population pharmacokinetics and physiologically-based pharmacokinetic modeling studies.

Expert opinion: Available evidence of a potential detrimental effect in elderly PLWH is limited by study design and small sample sizes. Careful consideration of undoubtful benefits and potential harms is advised when prescribing ARVs to geriatric patients and the knowledge of pharmacokinetics changes need to be included in the process. With the 'greying' of the pandemic we need studies with a specific focus on geriatric patients living with HIV that will consider specific phenotypes and associated changes (including sarcopenia).

Keywords: Age; elderly; modeling; pharmacokinetics.

Publication types

  • Review

MeSH terms

  • Adult
  • Age Factors
  • Aged
  • Anti-HIV Agents / administration & dosage
  • Anti-HIV Agents / pharmacokinetics*
  • HIV Infections / drug therapy*
  • Humans
  • Models, Biological*
  • Research Design

Substances

  • Anti-HIV Agents