TITLE

Nevirapine-Based Antiretroviral Therapy Impacts Artesunate and Dihydroartemisinin Disposition in HIV-Infected Nigerian Adults

AUTHOR(S)
Fehintola, Fatai A.; Scarsi, Kimberly K.; Qing Ma; Parikh, Sunil; Morse, Gene D.; Taiwo, Babafemi; Akinola, Ibrahim Tope; Adewole, Isaac F.; Lindegardh, Niklas; Phakderaj, Aphiradee; Ojengbede, Oladosu; Murphy, Robert L.; Akinyinka, Olusegun O.; Aweeka, Francesca T.
PUB. DATE
January 2012
SOURCE
AIDS Research & Treatment;2012, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background. Nevirapine- (NVP-) based antiretroviral therapy (ART) and artesunate-amodiaquine are frequently coprescribed in areas of HIV and malaria endemicity. We explored the impact of this practice on artesunate and dihydroartemisinin pharmacokinetics. Methods. We conducted a parallel-group pharmacokinetic comparison between HIV-infected patients receiving NVP-based ART (n = 10) and ART-naive controls (n = 11). Artesunate-amodiaquine 200/600 mg was given daily for three days. Measurement of drug concentrations occurred between 0 and 96 hours after the final dose. Pharmacokinetic parameters were determined using noncompartmental analysis. Results. Comparing the NVP group to controls, clearance of artesunate was reduced 50% (1950 versus 2995 L/h; P = 0.03), resulting in a 45% increase in the AUC0-96 (105 versus 69 ug"hr/L; P = 0.02). The half-life of dihydroartemisinin was shorter in the NVP group (1.6 versuss 3.2 h; P = 0.004), but other dihydroartemisinin pharmacokinetic parameters were unchanged. A lower conversion of artesunate to dihydroartemisinin was observed in the NVP group (dihydroartemisinin: artesunate AUC0-96 = 5.6 versuss 8.5 in NVP and control groups, respectively, P = 0.008). Conclusion. Although NVP-containing ART impacted some pharmacokinetic parameters of artesunate and dihydroartemisinin, overall exposure was similar or better in the NVP group.
ACCESSION #
87283297

 

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