Prevalence of etravirine-associated mutations in clinical samples with genotypic resistance to nevirapine and efavirenz in Brazilian clinics

J Acquir Immune Defic Syndr. 2011 Aug:57 Suppl 3:S193-6. doi: 10.1097/QAI.0b013e31821e9cf6.

Abstract

Nonnucleoside reverse transcriptase inhibitors (NNRTIs) are potent and well tolerated. In Brazil, the first-generation NNRTI efavirenz is included in the majority of first-line antiretroviral treatment regimens. In this study, we evaluated the effectiveness of etravirine, a new second-generation NNRTI, among patients failing antiretroviral regimens containing first-generation NNRTIs. We assessed single resistance mutations to etravirine as well as complex resistance mutations profile and discuss the potential of introducing etravirine as salvage therapy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkynes
  • Anti-HIV Agents / pharmacology*
  • Antiretroviral Therapy, Highly Active / methods
  • Benzoxazines / pharmacology*
  • Brazil
  • Cyclopropanes
  • Drug Resistance, Viral*
  • HIV / drug effects*
  • HIV / genetics
  • HIV / isolation & purification
  • HIV Infections / drug therapy
  • HIV Infections / virology*
  • Humans
  • Mutation, Missense
  • Nevirapine / pharmacology*
  • Nitriles
  • Prevalence
  • Pyridazines / pharmacology*
  • Pyrimidines

Substances

  • Alkynes
  • Anti-HIV Agents
  • Benzoxazines
  • Cyclopropanes
  • Nitriles
  • Pyridazines
  • Pyrimidines
  • etravirine
  • Nevirapine
  • efavirenz