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Related Experiment Videos

Naively changing HAART.

S Mandalia1, D Parmar, M Fisher

  • 1NPMS-HHC CAC, Chelsea and Westminster Hospital, London, UK.

HIV Medicine
|November 26, 2002
PubMed
Summary
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Many HIV patients start antiretroviral therapy (ART) late after diagnosis, and over half stop treatment for reasons unrelated to treatment failure, likely due to toxicity. Further research is needed to understand these delays and early treatment cessations.

Area of Science:

  • HIV/AIDS Research
  • Clinical Pharmacology
  • Public Health

Background:

  • Limited UK studies exist on antiretroviral therapy (ART) initiation, timing, and reasons for regimen changes in HIV-infected individuals.
  • Understanding ART patterns is crucial for optimizing HIV management and patient outcomes.

Purpose of the Study:

  • To determine the timing of first-, second-, and third-line triple ART initiation in ART-naive HIV patients.
  • To identify the drug classes used in initial and subsequent ART regimens.
  • To investigate if ART cessation correlates with virological, immunological, or clinical indicators of treatment failure.

Main Methods:

  • A multicentre prospective open cohort study was conducted.
  • Data were collected through the National Prospective Monitoring System on the use, cost and outcome of HIV service provision in UK hospitals-HIV Health-economics Collaboration (NPMS-HHC).

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  • The study included 585 ART-naive HIV patients from UK clinics between 1998 and 1999.

    • Main Results:

    • The median time from HIV diagnosis to starting triple ART was 800 days, with a median CD4 count drop from 278 to 190 cells/µL.
    • 162 patients initiated second-line ART and 46 initiated third-line ART during the study.
    • 51% of patients who stopped ART did so without virological, immunological, or clinical signs of treatment failure.

    Conclusions:

    • Varied reasons contribute to the delay in initiating ART after HIV diagnosis.
    • A significant proportion of patients discontinued ART for reasons other than treatment failure, suggesting drug toxicity as a likely cause.
    • Further prospective studies are required to thoroughly investigate the reasons for ART delays and early cessation.