Title: Tenofovir alafenamide (TAF) as the successor of tenofovir disoproxil fumarate (TDF)
Authors: De Clercq, Erik # ×
Issue Date: Nov-2016
Publisher: Elsevier
Series Title: Biochemical Pharmacology vol:119 pages:1-7
Abstract: Tenofovir alafenamide (TAF) can be considered a new prodrug of tenofovir (TFV), as successor of tenofovir disoproxil fumarate (TDF). It is in vivo as potent against human immunodeficiency virus (HIV) at a 30-fold lower dose (10 mg) than TDF (300 mg). TAF has been approved in November 2015 (in the US and EU), as a single-tablet regimen (STR) containing 150 mg elvitegravir (E), 150 mg cobicistat (C), 200 mg emtricitabine [(−)FTC] (F) and 10 mg TAF, marketed as Genvoya®, on 01 March 2016 in the US as an STR containing 25 mg rilpivirine (R), 200 mg F and 25 mg TAF, marketed as Odefsey®, and on 4 April 2016 in the US, as an STR containing 200 mg F and 25 mg TAF, marketed as Descovy®, for the treatment of HIV infections. STR combinations containing TAF and emtricitabine could be paired with a range of third agents, for example, darunavir and cobicistat. TAF has a much lower risk of kidney toxicity or bone density changes than TDF, and also offers long-term potential in the pre-exposure prophylaxis (PrEP) of HIV infections. TAF is specifically accumulated in lymphatic tissue, and in the liver, and hence also holds great potential for the treatment of hepatitis B virus (HBV) infections. Akin to TDF, TAF is converted intracellularly to TFV. Its active diphosphate metabolite (TFVpp) is targeted at the RNA-dependent DNA polymerase (reverse transcriptase) of either HIV or HBV.
ISSN: 0006-2952
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory of Virology and Chemotherapy (Rega Institute)
× corresponding author
# (joint) last author

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