Additional drug resistance of multidrug-resistant tuberculosis in patients in 9 countries

Ekaterina V. Kurbatova, Tracy Dalton, Julia Ershova, Thelma Tupasi, Janice Campos Caoili, Martie Van Der Walt, Charlotte Kvasnovsky, Martin Yagui, Jaime Bayona, Carmen Contreras, Vaira Leimane, Laura E. Via, Heejin Kim, Somsak Akksilp, Boris Y. Kazennyy, Grigory V. Volchenkov, Ruwen Jou, Kai Kliiman, Olga V. Demikhova, J. Peter Cegielski

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8 Scopus citations

Abstract

Data from a large multicenter observational study of patients with multidrug-resistant tuberculosis (MDR TB) were analyzed to simulate the possible use of 2 new approaches to treatment of MDR TB: a short (9-month) regimen and a bedaquiline-containing regimen. Of 1,254 patients, 952 (75.9%) had no resistance to fluoroquinolones and second-line injectable drugs and thus would qualify as candidates for the 9-month regimen; 302 (24.1%) patients with resistance to a fluoroquinolone or second-line injectable drug would qualify as candidates for a bedaquiline-containing regimen in accordance with published guidelines. Among candidates for the 9-month regimen, standardized drug-susceptibility tests demonstrated susceptibility to a median of 5 (interquartile range 5–6) drugs. Among candidates for bedaquiline, drug-susceptibility tests demonstrated susceptibility to a median of 3 (interquartile range 2–4) drugs; 26% retained susceptibility to <2 drugs. These data may assist national TB programs in planning to implement new drugs and drug regimens.

Original languageEnglish
Pages (from-to)977-983
Number of pages7
JournalEmerging Infectious Diseases
Volume21
Issue number6
DOIs
StatePublished - 2015

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© 2015 Centers for Disease Control and Prevention (CDC). All rights reserved.

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