Journal Article

High Rate of Virologic Suppression with Raltegravir Plus Etravirine and Darunavir/Ritonavir among Treatment-Experienced Patients Infected with Multidrug-Resistant HIV: Results of the ANRS

Y. Yazdanpanah, C. Fagard, D. Descamps, A. M. Taburet, C. Colin, B. Roquebert, C. Katlama, G. Pialoux, C. Jacomet, C. Piketty, D. Bollens, J. M. Molina and G. Chêne

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 49, issue 9, pages 1441-1449
Published in print November 2009 | ISSN: 1058-4838
Published online November 2009 | e-ISSN: 1537-6591 | DOI: http://dx.doi.org/10.1086/630210
High Rate of Virologic Suppression with Raltegravir Plus Etravirine and Darunavir/Ritonavir among Treatment-Experienced Patients Infected with Multidrug-Resistant HIV: Results of the ANRS

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Background.The introduction of 2 or 3 fully active drugs in human immunodeficiency virus (HIV)-infected patients receiving failing antiretroviral therapy is a key determinant of subsequent treatment efficacy. The aim of this study was to assess the safety and efficacy of a regimen containing raltegravir, etravirine, and darunavir/ritonavir for treatment-experienced patients infected with multidrug-resistant HIV.

Methods.Patients enrolled in this phase II, noncomparative, multicenter trial were naive to the investigational drugs and had plasma HIV RNA levels >1000 copies/mL, a history of virologic failure while receiving nonnucleoside reverse-transcriptase inhibitors (NNRTI), ⩾3 primary protease inhibitor and nucleoside reverse transcriptase inhibitor (NRTI) mutations, and ⩽3 darunavir and NNRTI mutations. The primary end point was the proportion of patients with plasma HIV RNA levels <50 copies/mL at 24 weeks.

Results.A total of 103 patients enrolled in the study. At baseline, genotypic resistance profiles showed a median of 4 primary protease inhibitor mutations, 1 NNRTI mutation, and 6 NRTI mutations. In addition to the investigational drugs, 90 patients (87%) received optimized background therapy that included NRTIs (86 patients) or enfuvirtide (12 patients). At week 24, 90% of patients (95% confidence interval, 85%-96%) had an HIV RNA level <50 copies/mL. At week 48, 86% (95% confidence interval, 80%-93%) had an HIV RNA level <50 copies/mL. The median CD4 cell count increase was 108 cells/mm3. Grade 3 or 4 clinical adverse events were reported in 15 patients (14.6%). Only 1 patient discontinued the investigational antiretroviral regimen, because of an adverse event.

Conclusion.In patients infected with multidrug-resistant virus who have few remaining treatment options, the combination of raltegravir, etravirine, and darunavir/ritonavir is well tolerated and is associated with a rate of virologic suppression similar to that expected in treatment-naive patients.

Journal Article.  4778 words.  Illustrated.

Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

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