Co-formulated fixed dose combination (FDC) of antiretroviral drugs tenofovir disoproxil fumarate, lamivudine, and reduced dose efavirenz [TDF 300 mg/3TC 300mg/EFV400 mg (TLE-400)] is a single daily tablet recently approved for the treatment of HIV-1 infection. Areas covered: An overview of the pharmacokinetics, pharmacodynamics and role of TLE-400 in the treatment of HIV-1 infection based on the publications from Medline and Pubmed as of February, 2018. Expert opinion: Although TLE-400 has not been formally evaluated in a clinical trial as a new formulation, previous studies have evaluated its components individually and in different doses as other FDCs have shown favorable efficacy and safety results to support continuing its approval and indication in the management of HIV-1 infection. Due to the lower dose of EFV, TLE-400 has a lower rate of toxicity and higher tolerability compared to its predecessor, the TLE-600, which contained a higher 600 mg dose of EFV. Given its low cost and ease of administration, TLE-400 is a promising alternative first line FDC in the management of HIV-1.
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