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Efficacy, safety, and patient acceptability of elvitegravir/cobicistat/emtricitabine/tenofovir in the treatment of HIV/AIDS

Authors Prinapori R, Di Biagio A

Received 13 May 2015

Accepted for publication 31 July 2015

Published 24 August 2015 Volume 2015:9 Pages 1213—1218


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Ms Annemiek Johanna Linn

Peer reviewer comments 2

Editor who approved publication: Dr Johnny Chen

Roberta Prinapori,1 Antonio Di Biagio2

1Infectious Diseases, University of Genoa, Genoa, Italy; 2Unit of Infectious Diseases, IRCCS AOU San Martino-IST, Genoa, Italy

Abstract: The fixed-dose combination (FDC) elvitegravir/cobicistat/emtricitabine/tenofovir (EVG/c/FTC/TDF) is a once-daily, single-tablet regimen containing an integrase strand transfer inhibitor and a pharmacoenhancer (cobicistat) associated with two nucleos(t)ide reverse transcriptase inhibitors. It is approved as the preferred regimen and as the first-line combined antiretroviral therapy in treatment-naïve patients with HIV infection. Two large trials, 102-Study and 103-Study, demonstrated that EVG/c/FTC/TDF was not inferior to efavirenz/FTC/TDF and ritonavir-boosted atazanavir in association with FTC/TDF, in terms of virological suppression and immunological reconstitution through week 144. Also, simplification arms containing EVG/c/FTC/TDF reached noninferiority in comparison with a nonnucleoside reverse transcriptase inhibitor, or a protease inhibitor, or a raltegravir-based regimen. Furthermore, EVG/c/FTC/TDF exhibited an excellent tolerability profile, with a safer lipid profile, and despite the indication of its use in subjects with an estimated creatinine clearance >70 mL/min, recent data demonstrated that EVG/c/FTC/TDF determined a reduction in estimated glomerular filtration rate (GFR) but not a reduction of actual GFR. Moreover, in a cohort of naïve patients with pretreatment mild-to-moderate renal impairment, GFR decrease was noted as early at week 2, after which it generally stabilized and was nonprogressive through week 48. The FDC’s efficacy and good tolerability enable EVG/c/FTC/TDF to meet the patients’ needs, improving adherence and quality of life, which are among the most important factors affecting the therapeutic efficacy of an antiretroviral regimen. This paper describes the evidence making EVG/c/FTC/TDF a new therapeutic opportunity for different HIV-infected patients.

Keywords: HIV, once daily, elvitegravir, single-tablet regimen, fixed-dose combination, adherence

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