Undersøgelsen sammenligner Atriplas effekt med antiretroviral behandling bestående af mindst to nukleosid - eller nukleotid- revers transkriptase- hæmmere (NRTIere) i kombination med en proteasehæmmer eller en non- nukleosid- revers transkriptase- hæmmer; dog ikke en behandling, der indeholder alle Atripla- komponenterne (efavirenz, emtricitabin og
Study AI266073 was a 48-week open-label randomised clinical study in HIV infected patients comparing the efficacy of Atripla to antiretroviral therapy consisting of at least two nucleoside or nucleotide reverse transcriptase inhibitors (NRTIs) with a protease inhibitor or non-nucleoside reverse transcriptase inhibitor; however not a regimen containing all Atripla components (efavirenz, emtricitabine and tenofovir disoproxil fumarate).