1. Safety and Effectiveness of 3 Novel All-Oral Shortened Regimens for Rifampicin- or Multidrug-Resistant Tuberculosis in Kazakhstan.
- Author
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Rashitov M, Franke MF, Trevisi L, Bekbolatova G, Shalimova J, Eshmetov G, Bektasov S, LaHood A, Arlyapova N, Osso E, Yedilbayev A, Korotych O, Ciobanu A, Skrahina A, Mitnick CD, Seung KJ, Algozhin Y, and Rich ML
- Subjects
- Humans, Female, Male, Adult, Kazakhstan, Prospective Studies, Middle Aged, Drug Therapy, Combination, Linezolid therapeutic use, Linezolid administration & dosage, Linezolid adverse effects, Levofloxacin therapeutic use, Levofloxacin administration & dosage, Levofloxacin adverse effects, Treatment Outcome, Oxazoles therapeutic use, Oxazoles adverse effects, Oxazoles administration & dosage, Nitroimidazoles adverse effects, Nitroimidazoles therapeutic use, Nitroimidazoles administration & dosage, Administration, Oral, Pyrazinamide therapeutic use, Pyrazinamide administration & dosage, Pyrazinamide adverse effects, Diarylquinolines therapeutic use, Diarylquinolines adverse effects, Diarylquinolines administration & dosage, Young Adult, Cycloserine therapeutic use, Cycloserine administration & dosage, Cycloserine adverse effects, Mycobacterium tuberculosis drug effects, Tuberculosis, Pulmonary drug therapy, Tuberculosis, Multidrug-Resistant drug therapy, Antitubercular Agents therapeutic use, Antitubercular Agents adverse effects, Antitubercular Agents administration & dosage, Rifampin therapeutic use, Rifampin administration & dosage, Rifampin adverse effects, Clofazimine therapeutic use, Clofazimine administration & dosage, Clofazimine adverse effects
- Abstract
Background: In 2019, the World Health Organization called for operational research on all-oral shortened regimens for multidrug- and rifampicin-resistant tuberculosis (MDR/RR-TB). We report safety and effectiveness of three 9-month all-oral regimens containing bedaquiline (Bdq), linezolid (Lzd), and levofloxacin (Lfx) and reinforced with cycloserine (Cs) and clofazimine (Cfz), delamanid (Dlm) and pyrazinamide (Z), or Dlm and Cfz., Methods: We conducted a prospective cohort study of patients initiating treatment for pulmonary MDR/RR-TB under operational research conditions at public health facilities in Kazakhstan. Participants were screened monthly for adverse events. Participants with baseline resistance were excluded from the study and treated with a longer regimen. We analyzed clinically relevant adverse events of special interest in all participants and sputum culture conversion and end-of-treatment outcomes among individuals who were not excluded., Results: Of 510 participants, 41% were women, the median age was 37 years (25th-75th percentile: 28-49), 18% had a body mass index <18.5 kg/m2, and 51% had cavitary disease. A total of 399 (78%) initiated Bdq-Lzd-Lfx-Cs-Cfz, 83 (16%) started Bdq-Lzd-Lfx-Dlm-Z, and 28 (5%) initiated Bdq-Lzd-Lfx-Dlm-Cfz. Fifty-eight individuals (11%) were excluded from the study, most commonly due to identification of baseline drug resistance (n = 52; 90%). Among the remaining 452 participants, treatment success frequencies were 92% (95% CI: 89-95%), 89% (95% CI: 80-94%), and 100% (95% CI: 86-100%) for regimens with Cs/Cfz, Dlm/Z, and Dlm/Cfz, respectively. Clinically relevant adverse events of special interest were uncommon., Conclusions: All regimens demonstrated excellent safety and effectiveness, expanding the potential treatment options for patients, providers, and programs., Competing Interests: Potential conflicts of interest. The authors: No reported conflicts of interest. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed., (© The Author(s) 2024. Published by Oxford University Press on behalf of Infectious Diseases Society of America.)
- Published
- 2024
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