Protein binding of rifapentine and its 25-desacetyl metabolite in patients with pulmonary tuberculosis.

Abstract:

:Rifapentine is highly protein bound in blood, but the free, unbound drug is the microbiologically active fraction. In this exploratory study, we characterized the free plasma fraction of rifapentine in 41 patients with tuberculosis. We found a lower total rifapentine concentration but significantly higher free rifapentine levels in African patients of black race compared to non-Africans. These data support larger pharmacokinetic/pharmacodynamic studies to confirm these findings and assess free rifapentine in relation to microbiological and clinical outcomes.

authors

Egelund EF,Weiner M,Singh RP,Prihoda TJ,Gelfond JA,Derendorf H,Mac Kenzie WR,Peloquin CA

doi

10.1128/AAC.01730-13

subject

Has Abstract

pub_date

2014-08-01 00:00:00

pages

4904-10

issue

8

eissn

0066-4804

issn

1098-6596

pii

AAC.01730-13

journal_volume

58

pub_type

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