Higher short-term virologic efficacy of three-class versus two-class highly active antiretroviral salvage therapy in HIV-infected patients

F. Baldanti, S. Paolucci, R. Maserati, F. Maggiolo, A. Pan, F. Castelli, R. Gulminetti, G. Comolli, A. Chiesa, G. Gerna

Research output: Contribution to journalArticlepeer-review

Abstract

The efficacy of two-class versus three-class antiretroviral salvage treatment was analyzed retrospectively in 63 HIV-infected patients in whom highly active antiretroviral therapy failed. Twenty-eight patients (group A) received two-class therapy, and 35 patients (group B) received three-class therapy. After 3 months of treatment, a significantly greater proportion of patients in group B (23/35, 65.7%) than in group A (8/28, 28.5%) showed a ≥ 1 log10 decrease in the plasma HIV RNA level (P = 0.0034). However, after 9-12 months, 12 of 23 (52.1%) group B responders showed viral load rebound. The results were partially explained by the finding that, at baseline, the great majority (21/27, 77.7%) of group A patients showed mutations conferring resistance to all drugs administered, whereas in group B patients' susceptibility to at least two drug classes was retained. However, after 9-12 months of therapy, most (18/20, 90%) of the shortterm responders in group B showed emergence of additional mutations that hampered long-term response.

Original languageEnglish
Pages (from-to)380-384
Number of pages5
JournalEuropean Journal of Clinical Microbiology and Infectious Diseases
Volume19
Issue number5
Publication statusPublished - 2000

ASJC Scopus subject areas

  • Microbiology (medical)
  • Immunology

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