Indinavir, nevirapine, stavudine, and lamivudine for human immunodeficiency virus-infected, amprenavir-experienced subjects: AIDS clinical trials group protocol 373

Academic Article


  • This prospective, multicenter, open-label study was designed to determine the antiretroviral activity and safety of a 4-drug regimen: 1000 mg indinavir every 8 h with 200 mg nevirapine, 40 mg stavudine, and 150 mg lamivudine, each given twice daily in amprenavir-experienced subjects. The primary end points of the study were the human immunodeficiency virus (HIV) RNA level and CD4 cell count responses. Fifty-six subjects were enrolled and were changed from amprenavir-containing regimens to the 4-drug regimen. Overall, at week 48, 33 (59%) of 56 subjects had HIV RNA levels <500 copies/mL (intent-to-treat analysis, where missing values equal ≥500 copies/mL) and CD4 cell counts increased by 94 cells/mm3 from baseline. Subjects who had previously taken amprenavir combination therapy were more likely to experience virologic failure than those who had taken amprenavir monotherapy (odds ratio, 7.7; P = .0012). In this study, most subjects who had taken amprenavir-based regimens and who changed to a 4-drug regimen achieved subsequent durable-virologic suppression.
  • Published In

    Digital Object Identifier (doi)

    Pubmed Id

  • 27557637
  • Author List

  • Gulick RM; Smeaton LM; D’Aquila RT; Eron JJ; Currier JS; Gerber JG; Acosta E; Sommadossi JP; Tung R; Snyder S
  • Start Page

  • 715
  • End Page

  • 721
  • Volume

  • 183
  • Issue

  • 5