A Review of the Virological Efficacy of the 4 World Health Organization–Recommended Tenofovir-Containing Regimens for Initial HIV Therapy
Tang, Michele W.
Shafer, Robert W.
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CitationTang, Michele W., Phyllis J. Kanki, and Robert W. Shafer. 2012. A review of the virological efficacy of the 4 world health organization–recommended tenofovir-containing regimens for initial HIV therapy. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America 54(6): 862-875.
AbstractWe systematically reviewed studies of the virological efﬁcacy of the 4 new tenofovir (TDF)-containing regimens recommended for initial antiretroviral (ARV) therapy in the 2010 World Health Organization ARV Treatment Guidelines. Thirty-three studies assessed the efﬁcacy of 1 or more TDF-containing regimens: TDF/lamivudine (3TC)/nevirapine (NVP) (n 5 3), TDF/ emtricitabine (FTC)/NVP (n 5 9), TDF/3TC/efavirenz (EFV) (n 5 6), and TDF/FTC/EFV (n 5 19). TDF/3TC/NVP was the least well-studied and appeared the least efﬁcacious of the 4 regimens. In 2 comparative studies, TDF/3TC/NVP was associated with signiﬁcantly more virological failure than AZT/3TC/NVP; a third study was terminated prematurely because of early virological failure. TDF/FTC/NVP was either equivalent or inferior to its comparator arms. TDF/3TC/EFV was equivalent to its comparator arms. TDF/FTC/EFV was equivalent or superior to its comparator arms. Possible explanations for these ﬁndings include the greater antiviral activity of EFV versus NVP and longer intracellular half-life of FTC-triphosphate versus 3TC-triphosphate. Further study of TDF/3TC/NVP is required before it is widely deployed for initial ARV therapy.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:8715418
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