Key amprenavir resistance mutations counteract dramatic efficacy of darunavir in highly experienced patients

AIDS. 2007 May 31;21(9):1210-3. doi: 10.1097/QAD.0b013e32810fd744.

Abstract

In highly experienced HIV-1-infected patients, a ritonavir-boosted darunavir-containing regimen was associated with dramatic immunological and virological efficacy. Patients harbouring viruses with amprenavir-specific resistance profiles, such as I50V or V32I + I47V, failed on a darunavir/ritonavir-containing regimen. These key amprenavir mutations were also selected at the time of failure, suggesting their impact on darunavir efficacy.

MeSH terms

  • CD4 Lymphocyte Count
  • Carbamates / therapeutic use*
  • Darunavir
  • Drug Resistance, Viral / genetics
  • Drug Therapy, Combination
  • Furans
  • HIV Infections / drug therapy*
  • HIV Infections / genetics
  • HIV Infections / virology
  • HIV Protease Inhibitors / therapeutic use*
  • HIV-1 / genetics*
  • Humans
  • Reverse Transcriptase Inhibitors / therapeutic use
  • Risk Factors
  • Ritonavir / therapeutic use
  • Sulfonamides / therapeutic use*
  • Treatment Failure
  • Viral Load

Substances

  • Carbamates
  • Furans
  • HIV Protease Inhibitors
  • Reverse Transcriptase Inhibitors
  • Sulfonamides
  • amprenavir
  • Ritonavir
  • Darunavir