Safety and Efficacy Evaluation of 4-month Regimen of OPC-167832, Delamanid and Bedaquiline in Participants With Drug-Susceptible Pulmonary TB

Summary

This trial will assess the safety and efficacy of OPC-167832 combined with delamanid and bedaquiline in participants with drug-susceptible tuberculosis (DS-TB) administered for 17 weeks compared to rifampin, isoniazid, ethambutol, pyrazinamide (RHEZ) administered for 26 weeks.

Timeline

Start

2022-04-12

Primary completion

2024-04-08

Completion

2024-05-19

Outcome

Met primary endpoint

paper The comparison between the pooled DBQ group and the RHEZ group met non-inferiority for the primary endpoint (difference -4·0% [80% CI -7·4 to 3·4]). PMID 42214407 ↗

Publications

• Dawson R, Diacon AH, Variava E, Moloantoa T, Brumskine W, Ngwanto T, Zuma-Gwala N, Osman A, Rassool M, Bennet JA, Liu Y, Xu R, Li W, Takuva S, Hafkin J. Efficacy and safety of a 4-month quabodepistat, delamanid, and bedaquiline regimen for drug-susceptible pulmonary tuberculosis: a multicentre, open-label, randomised, proof-of-concept, non-inferiority, phase 2b/c trial. Lancet Infect Dis. 2026 May 29:S1473-3099(26)00143-X. doi: 10.1016/S1473-3099(26)00143-X. Online ahead of print.
• Dawson R, Diacon AH, Takuva S, Liu Y, Zheng B, Karwe V, Hafkin J. Quabodepistat in combination with delamanid and bedaquiline in participants with drug-susceptible pulmonary tuberculosis: protocol for a multicenter, phase 2b/c, open-label, randomized, dose-finding trial to evaluate safety and efficacy. Trials. 2024 Jan 19;25(1):70. doi: 10.1186/s13063-024-07912-5.

Drugs

Indications