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Increased Doses Lead to Higher Drug Exposures of Levofloxacin for Treatment of Tuberculosis.

Charles A PeloquinPatrick P J PhillipsCarole D MitnickKathleen EisenachRamonde F PatientiaLeonid LeccaEduardo GotuzzoNeel R GandhiDonna ButlerAndreas H DiaconBruno MartelJuan SantillanKathleen Robergeau HuntDante VargasFlorian von Groote-BidlingmaierCarlos SeasNancy DianisAntonio Moreno-MartinezPawandeep KaurC Robert Horsburgh
Published in: Antimicrobial agents and chemotherapy (2018)
Patients with multidrug-resistant tuberculosis in Peru and South Africa were randomized to a weight-banded nominal dose of 11, 14, 17, or 20 mg/kg/day levofloxacin (minimum, 750 mg) in combination with other second-line agents. A total of 101 patients were included in noncompartmental pharmacokinetic analyses. Respective median areas under the concentration-time curve from 0 to 24 h (AUC0-24) were 109.49, 97.86, 145.33, and 207.04 μg · h/ml. Median maximum plasma concentration (Cmax) were 11.90, 12.02, 14.86, and 19.17 μg/ml, respectively. Higher levofloxacin doses, up to 1,500 mg daily, resulted in higher exposures. (This study has been registered at ClinicalTrials.gov under identifier NCT01918397.).
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