• Isabel Aldir, Ana Horta, and Margarida Serrado.
• Centro Hospitalar de Lisboa Ocidental, Hospital Egas Moniz , Lisboa , Portugal.
• Curr Med Res Opin. 2014 Jan 1; 30 (1): 89-97.

ObjectivesReview of the available data on the currently available single-tablet regimens (STRs), from the analysis of efficacy and safety to the key points of value in terms of adherence, quality of life and pharmacoeconomic evaluation.MethodsFor this narrative review, literature searches have been performed in PubMed, IndexRevMed and Cochrane, using the search terms HIV, single-tablet, one-pill, single dose, fixed-dose, and STR. These have been reviewed and complemented with the most recent publications of interest.ResultsFixed-dose combinations are a significant advance in antiretroviral treatment simplification, contributing to an increase in compliance with complex chronic therapies, thus improving patients' quality of life. Reducing the number of pills and daily doses is associated with higher adherence and better quality of life. As a fixed-dose combination tablet given once daily, EFV/FTC/TDF was the first available STR combining efficacy, tolerability and convenience, with the simplest dosing schedule and smallest numbers of pills of any ART combination therapy. The RPV/FTC/TDF is a next-generation NNRTI-based STR, a once daily complete ART regimen for the treatment of HIV-1 infection. Recently the combination of EVG/COBI/FTC/TDF was also approved by the European Commission, and is the first integrase inhibitor-based STR. Receiving antiretroviral therapy as once daily STR is associated with both clinical and economic benefits, which confirms previous research.ConclusionsThe associated benefits of STRs provide a valid strategy for the treatment of HIV-infected patients.

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