Efficacy and safety data on pretomanid for drug-resistant TB
Abstract
Objective: To summarise the efficacy and safety of pretomanid (Pa) based regimens in patients with drug-resistant TB (DR-TB).
Methods: We included clinical trials, operational research and observational studies reporting the efficacy and safety of Pa-based regimens in DR-TB. The duration of the treatment was at least 24 weeks. Efficacy was reported as a favourable/unfavourable outcome and culture conversion. Safety was reported in terms of death and frequency of adverse events of special interest.
Results: Of the 127 articles identified, 13 were included. The proportion of favourable outcomes reported was 76-100%, and the median time to culture conversion was 4-6 weeks. Culture conversion rates ranged from 80-100% by the end of 3 months of treatment, regardless of the type of drug resistance. Treatment completion rates in the operational research studies varied between 18-93%. Safety events were not proportionate among the studies included, possibly due to the differing linezolid dosing (more frequent in the 1,200 mg dose regimen).
Conclusion: Our review supports the use of Pa-based regimens in patients with DR-TB. The results indicate that Pa-based regimens are efficacious with tolerable safety profile in DR-TB patients.
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