Journal article
E. Gardner, A. Melendez, M. Astiz, K. Bray
Journal of the International Association of Physicians in AIDS Care, 2012
Journal of the International Association of Physicians in AIDS Care, 2012
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APA
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Gardner, E., Melendez, A., Astiz, M., & Bray, K. (2012). Adherence and Preexisting Major Protease Inhibitor Resistance Mutations are Associated with Virologic Failure of a Dual-Class Antiretroviral Regimen with Inhibitors of HIV-1 Viral Protease and Integrase. Journal of the International Association of Physicians in AIDS Care.
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Gardner, E., A. Melendez, M. Astiz, and K. Bray. “Adherence and Preexisting Major Protease Inhibitor Resistance Mutations Are Associated with Virologic Failure of a Dual-Class Antiretroviral Regimen with Inhibitors of HIV-1 Viral Protease and Integrase.” Journal of the International Association of Physicians in AIDS Care (2012).
MLA
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Gardner, E., et al. “Adherence and Preexisting Major Protease Inhibitor Resistance Mutations Are Associated with Virologic Failure of a Dual-Class Antiretroviral Regimen with Inhibitors of HIV-1 Viral Protease and Integrase.” Journal of the International Association of Physicians in AIDS Care, 2012.
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@article{e2012a,
title = {Adherence and Preexisting Major Protease Inhibitor Resistance Mutations are Associated with Virologic Failure of a Dual-Class Antiretroviral Regimen with Inhibitors of HIV-1 Viral Protease and Integrase},
year = {2012},
journal = {Journal of the International Association of Physicians in AIDS Care},
author = {Gardner, E. and Melendez, A. and Astiz, M. and Bray, K.}
}
Abstract
Objectives: Novel treatment strategies are needed for treatment-experienced HIV-infected individuals. We retrospectively evaluated virologic outcomes on a dual-class, protease inhibitor (PI) plus raltegravir, antiretroviral (ARV) regimen. Methods: Virologic success was defined by a plasma HIV-RNA level ≤200 copies/mL. Adherence was measured using pharmacy refill data. The association between adherence and virologic failure was assessed using bivariate logistic regression. Results: In 39 individuals, median prior antiretroviral therapy (ART) exposure was 11 years. Of 39 individuals, 36 (92%) achieved an HIV-RNA ≤200 copies/mL. After a median follow-up of 328 days (interquartile range [IQR] 190-737 days), 74% maintained an HIV-RNA <200 copies/mL but only 44% had <50 copies/mL. Median adherence was 96.4% (IQR 83.3%-100%). For every 10% decrease in adherence, the odds of virologic failure increased by 90% (odds ratio [OR] = 1.9, 95% confidence interval [CI] 1.1-3.3). In all, 4 individuals had ≥2 preexisting major PI resistance mutations and all 4 had virologic failure. Conclusions: Most treatment-experienced individuals achieved virologic suppression on a dual-class regimen of a PI plus raltegravir. Success was limited by poor medication adherence and preexisting major PI resistance mutations.