Superior Outcomes With Continuing Tenofovir Versus Switching to Zidovudine in Second-Line Antiretroviral Therapy in Haiti

Open Forum Infect Dis. 2021 Nov 23;8(12):ofab559. doi: 10.1093/ofid/ofab559. eCollection 2021 Dec.

Abstract

We compared viral suppression rates between patients who continued tenofovir disoproxil fumarate (TDF)/lamivudine (3TC) vs switched to zidovudine (ZDV)/3TC in combination with a boosted protease inhibitor after failure of first-line efavirenz/TDF/3TC. We found higher rates of viral suppression with continued TDF/3TC compared with switching to ZDV/3TC.

Keywords: HIV; genotypic resistance; second-line therapy; tenofovir disoproxil fumarate; zidovudine.