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Efficacy of 1998 vs 2006 first-line antiretroviral regimens for HIV infection: an ordinary clinics retrospective investigation

Parruti, Giustino and Polilli, Ennio and De Socio, Giuseppe Vittorio Luigi and Sozio, Federica and Marconi, Patrizia and Soddu, Viviana and Dalessandro, Margherita and Celesia, Benedetto Maurizio and Pellicanò, Giovanni and Madeddu, Giordano and Vecchiet, Jacopo and Di Masi, Francesco and Mazzotta, Elena and Ursini, Tamara and Martinelli, Canio and Vitiello, Paola and Bonfanti, Paolo and Nigro, Luciano and Mura, Maria Stella Anna and Antinori, Andrea and Ricci, Elena and Manzoli, Lamberto (2012) Efficacy of 1998 vs 2006 first-line antiretroviral regimens for HIV infection: an ordinary clinics retrospective investigation. Journal of Antivirals and Antiretrovirals, Vol. 4 (2), p. 32-37. eISSN 1948-5964. Article.

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DOI: 10.4172/jaa.1000043

Abstract

Purpose: The evidence suggesting increased HAART efficacy over time comes from randomized trials or cohort studies. This retrospective multicenter survey aimed to assess the variation over time in the efficacy and tolerability of first-line HAART regimens in unselected patients treated in ordinary clinical settings.
Methods: Retrospective analysis of data of all patients starting first-line HAART regimens in 1998 and 2006 at adhering centers in the Italian CISAI group.
Results: For the 543 patients included, mean age was 39.1 ± 9.8y in 1998 and 41.0 ± 10.7y in 2006 (p=0.03), with a similar proportion of males. Baseline mean log10 HIV-RNA was 4.56 ± 0.97 copies/mL in 1998 vs 4.91 ± 0.96 copies/mL in 2006 (p<0.001); baseline mean CD4 T-cell counts were 343 ± 314/mm3 in 1998 vs 244 ± 174/mm3 in 2006 (p<0.001). The following outcomes were significantly improved at 48w in 2006: proportion with undetectable HIV-RNA (86.3% vs 58.0%; p<0.001); mean increase in CD4 T-cells count (252 ± 225 vs 173 ± 246; p<0.001); HAART modification (20.1% vs 29.2%; p=0.02); HAART interruption (7.3% vs 14.6%; p=0.01); proportion reporting optimal adherence (92.2% vs 82.7%, p=0.03). No differences were observed in the prevalence of grade 3-4 WHO toxicities (26.4% vs 26.6%; p=0.9). Multivariate logistic regression showed that being treated in 1998 remained an independent predictor of virological failure after several adjustments, including adherence.
Conclusions: Our data from patients not included in clinical trials or cohort studies provide an additional line of evidence that the effectiveness of HAART significantly improved in 2006. Treated patients, however, were significantly older and more frequently late HIV presenters in 2006 than in 1998.

Item Type:Article
ID Code:7671
Status:Published
Refereed:Yes
Uncontrolled Keywords:HIV, AIDS, HAART, HAART efficacy, HAART toxicity, Late HIV presentation
Subjects:Area 06 - Scienze mediche > MED/17 Malattie infettive
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Medicina Clinica e Sperimentale
Publisher:Omics Publishing Group
eISSN:1948-5964
Copyright Holders:© Parruti G., et al.
Deposited On:05 Jun 2012 11:32

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