• Drugs · Jan 2014

    Review

    Elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate single-tablet regimen (Stribild®): a review of its use in the management of HIV-1 infection in adults.

    • Caroline M Perry.
    • Adis, 41 Centorian Drive, Private Bag 65901, Mairangi Bay, North Shore, 0754, Auckland, New Zealand, demail@springer.com.
    • Drugs. 2014 Jan 1; 74 (1): 75-97.

    AbstractA new single-tablet, fixed-dose formulation consisting of elvitegravir, an HIV-1 integrase strand transfer inhibitor (INSTI); cobicistat, a pharmacokinetic enhancer; emtricitabine, a nucleoside reverse transcriptase inhibitor; and tenofovir disoproxil fumarate (tenofovir DF), a nucleotide reverse transcriptase inhibitor (elvitegravir/cobicistat/emtricitabine/tenofovir DF 150 mg/150 mg/200 mg/300 mg; Stribild®) is available in some countries for the once-daily treatment of HIV-1 infection in antiretroviral therapy-naïve adults. Elvitegravir/cobicistat/emtricitabine/tenofovir DF is the first INSTI-based single-tablet regimen available for the complete initial treatment of adults with HIV-1 infection. In two large, randomized, double-blind, phase III trials, once-daily treatment with elvitegravir/cobicistat/emtricitabine/tenofovir DF was effective in reducing plasma HIV-1 RNA levels to <50 copies/mL at the week 48 assessment and showed virological efficacy noninferior to that of the efavirenz/emtricitabine/tenofovir DF single-tablet regimen or a once-daily regimen of atazanavir plus ritonavir (ritonavir-boosted atazanavir) plus the fixed-dose combination of emtricitabine/tenofovir DF. Elvitegravir/cobicistat/emtricitabine/tenofovir DF also showed durable efficacy in terms of achieving sustained suppression of HIV-1 RNA levels to <50 copies/mL for up to 144 weeks in both of the phase III trials. Elvitegravir/cobicistat/emtricitabine/tenofovir DF is an important addition to the group of simplified once-daily single-tablet regimens currently available for the effective treatment of HIV-1 infection in antiretroviral therapy-naïve patients and is among the preferred regimens recommended for use as initial treatment. It offers advantages over more complex multiple-tablet regimens that may impair treatment adherence, which is fundamental to the successful management of HIV-1 infection.

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