Dual therapy based on raltegravir and boosted protease inhibitors – the experience of Polish centers
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Submission date: 2016-04-23
Final revision date: 2016-06-18
Acceptance date: 2016-07-03
Online publication date: 2016-09-22
Publication date: 2018-06-19
Arch Med Sci 2018;14(4):860-864
The aim of the study was to present the experience of Polish centers regarding dual therapy based on the integrase inhibitor raltegravir (RAL) and ritonavir-boosted protease inhibitors (PI/r) for treating treatment-naïve and -experienced HIV-infected patients.

Material and methods:
The paper concerns a retrospective multicenter study. The medical databases of six main Polish HIV centers from January 2009 to December 2014 were analyzed for the use of combined antiretroviral treatment consisting of RAL + PI/r. This study included 126 HIV-infected patients receiving RAL + PI/r therapy, of whom 17 patients were treatment-naive and 109 patients were treatment-experienced.

In treatment-experienced patients, the most common reasons for the introduction of a RAL + PI/r regimen were virologic failure and impaired renal function (45 of 109 patients). In the treatment-naïve group kidney disease was the cause of the RAL + PI/r regimen in 3 of 17 participants. In treatment-experienced patients, 80% of individuals still were on RAL + PI/r treatment after 12 months, 65% after 24 months and 53% of subjects after 60 months. In both groups, the simplification of the antiretroviral regimen was the most common reason for discontinuation of RAL + PI/r based therapy.

In antiretroviral-experienced patients the dual therapy based on RAL + PI/s is safe and effective. In antiretroviral-naïve patients the RAL + PI/r regimen is rarely used in Poland.

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