The use of a triple nucleoside-nucleotide regimen for nonoccupational HIV post-exposure prophylaxis

A. Winston, J. McAllister, J. Amin, D. A. Cooper, A. Carr

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Objectives: Nonoccupational post-exposure prophylaxis (NPEP) for HIV is recommended after high-risk sexual exposure. Because of the high incidence of intolerable side effects observed with protease inhibitor- and zidovudine-based NPEP regimens, our unit changed standard NPEP treatment to 28 days of tenofovir-lamivudine-stavudine (TDF-3TC-d4T). The aim of this study was to compare side effects and numbers of individuals completing NPEP before and after this change. Methods: Parameters were compared amongst individuals commencing the following NPEP regimens: zidovudine-lamivudine (ZDV-3TC), zidovudine-lamivudine-nelfinavir (ZDV-3TC-NFV) and TDF-3TC-d4T. Results: A total of 385 individuals received ZDV-3TC (n = 36), ZDV-3TC-NFV (n = 225) or TDF-3TC-d4T (n = 137) as NPEP for the first time between June 1999 and November 2003. Noncompletion rates were 25%, 32% and 15%, respectively (P = 0.001), with odds ratios for noncompletion being 2.0 [95% confidence interval (CI) 0.8-4.8] and 2.7 (95% CI 1.6-4.8) in the first two groups compared with the TDF-3TC-d4T group (P = 0.008). Adverse events were less common in the TDF-3TC-d4T group, with significantly lower rates of nausea and headache, but significantly higher rates of peripheral neuropathy and asymptomatic raised transaminases. There was no HIV seroconversion in any group. Conclusions: TDF-3TC-d4T is significantly better tolerated than ZDV-3TC or ZDV-3TC-NFV as NPEP and results in greater numbers of individuals completing 28 days of treatment.

Original languageEnglish
Pages (from-to)191-197
Number of pages7
JournalHIV Medicine
Volume6
Issue number3
DOIs
Publication statusPublished - May 2005
Externally publishedYes

Keywords

  • Antiretrovirals
  • HIV
  • Nonoccupational exposure
  • Post-exposure prophylaxis

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