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The Journal of antimicrobial chemotherapy v.72 no.2, 2017년, pp.478 - 485   SCI SCIE
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Single-dose pharmacokinetics and pharmacodynamics of oral tenofovir and emtricitabine in blood, saliva and rectal tissue: a sub-study of the ANRS IPERGAY trial

Fonsart, Julien (Department of Biochemistry, AP-HP, Hé ); Saragosti, Sentob (é ); Taouk, Milad (é ); Peytavin, Gilles (ô ); Bushman, Lane (ô ); Charreau, Isabelle (pital Saint-Louis, Paris, France ); Hance, Allan ( INSERM U941, Paris, France ); Goldwirt, Lauriane ( Department of Infectious Diseases, Hé ); Morel, Sté (é ); phane (é ); Mammano, Fabrizio (ô ); Loze, Bé (ô ); (ô ); né (pital Saint-Louis, AP-HP and University of Paris Diderot, Paris Sorbonne Cité ); (é ); (é ); dicte (ô ); Capitant, Catherine (ô ); Clavel, Francois (ô ); Mahjoub, Nadia (é ); Meyer, Laurence (, France ); Anderson, Peter L. ( Department of Pharmacology, Hé ); Delaugerre, Constance (é ); Molina, Jean-Michel (é );
  • 초록  

    Objectives In the ANRS IPERGAY pre-exposure prophylaxis (PrEP) trial, a single dose of tenofovir disoproxil fumarate and emtricitabine was taken orally 2–24 h before sexual intercourse. A sub-study was conducted to assess the pharmacokinetics of tenofovir and emtricitabine in blood, saliva and rectal tissue following this initial oral intake. Methods Plasma, PBMC, saliva and rectal tissue sampling was performed over 24 h in 12 seronegative men before enrolment in the ANRS IPERGAY trial, following a single dose of 600 mg tenofovir disoproxil fumarate/400 mg emtricitabine. Ex vivo HIV infectibility of rectal biopsies was also assessed. Results The median plasma T max of tenofovir (median C max : 401 μg/L) and emtricitabine (median C max : 2868 μg/L) was obtained 1 h (range: 0.5–4) and 2 h (range: 1–4) after dosing, respectively. The median C 24 of tenofovir and emtricitabine was 40 and 63 μg/L, respectively. The median PBMC tenofovir diphosphate and emtricitabine triphosphate levels were 12.2 and 16.7 fmol/10 6 cells and 2800 and 2000 fmol/10 6 cells at 2 and 24 h after dosing, respectively. Saliva/plasma AUC 0–24 ratios were 2% and 17% for tenofovir and emtricitabine, respectively. Emtricitabine was detected in rectal tissue 30 min after dosing, whereas tenofovir was only detectable at 24 h. Ex vivo HIV infectibility assays of rectal biopsies showed partial protection after dosing ( P  < 0.07). Discussion A single high dose of oral tenofovir disoproxil fumarate/emtricitabine provides rapid and high blood levels of tenofovir and emtricitabine, with rapid diffusion of emtricitabine in saliva and rectal tissue.


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