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

Kurbatova, Ekaterina V; Dalton, Tracy; Ershova, Julia; Tupasi, Thelma; Caoili, Janice Campos; Van Der Walt, Martie; Kvasnovsky, Charlotte; Yagui, Martin; Bayona, Jaime; Contreras, Carmen; Leimane, Vaira; Via, Laura E; Kim, HeeJin; Akksilp, Somsak; Kazennyy, Boris Y; Volchenkov, Grigory V; Jou, Ruwen; Kliiman, Kai; Demikhova, Olga V; Cegielski, J Peter.
Emerg Infect Dis; 21(6): 977-83, 2015 Jun.
Artigo Inglês | MEDLINE | ID: mdl-25988299
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.
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