Protease inhibitor therapy in HIV-infected children

A R Feingold1, R M Rutstein, D Meislich

  • 1The Children's Regional Hospital, Camden, New Jersey 08103, USA. Feingold-Anat@Cooperhealth.edu

Insights

Protease inhibitor (PI) therapy significantly improved immune function and reduced viral load in HIV-infected children. Good compliance correlated with better treatment response, though side effects were noted.

Area of Science:

  • Pediatric Infectious Diseases
  • Virology
  • Immunology

Background:

  • Human Immunodeficiency Virus (HIV) infection remains a significant health concern in children.
  • Antiretroviral therapy (ART) is crucial for managing pediatric HIV.
  • Protease inhibitors (PIs) are a key component of ART regimens.

Purpose of the Study:

  • To evaluate the short-term efficacy and safety of protease inhibitor (PI)-containing antiretroviral therapy (ART) in HIV-infected children.
  • To assess the impact of PI therapy on immunological and virological markers.
  • To examine the relationship between patient compliance and treatment outcomes.

Main Methods:

  • Retrospective chart review of 70 HIV-infected children receiving PI-containing ART at two urban pediatric centers.
  • Analysis of follow-up CD4 counts and viral loads as primary outcome measures.
  • Inclusion of patient or caregiver-reported compliance data.

Main Results:

  • PI-containing ART was associated with a mean maximal increase in CD4+ lymphocyte count of 454 x 10(6)/L.
  • A mean maximal decrease in viral load of 1.76 log units was observed.
  • 87.5% of patients achieving undetectable viral loads maintained this status for a mean of 8.9 months.
  • Good compliance was linked to a higher response rate (92.6%) compared to poor compliance (61.5%).
  • 11 out of 14 patients (78.6%) responded positively to a second PI regimen after treatment failure.
  • Significant side effects occurred in 19 of 101 PI therapy courses, with renal complications noted in 8 of 21 patients on indinavir.

Conclusions:

  • PI-containing ART demonstrated substantial short-term improvements in immunological and virological parameters in a heavily pretreated pediatric HIV cohort.
  • Approximately 40% of patients maintained undetectable viral loads after 9 months of PI therapy.
  • Patients experiencing treatment failure with one PI regimen often responded well to a second PI regimen.
  • A notable incidence of side effects associated with PI treatment was observed.

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