Phase 2 Trial Assessing TBAJ876 or Bedaquiline, With Pretomanid and Linezolid in Adults With Drug-sensitive Pulmonary Tuberculosis

Summary

The goal of this clinical trial is to evaluate 3 dose levels of TBAJ876 for 8 weeks in combination with pretomanid and linezolid, compared to 8 weeks of Isoniazid, rifampicin, pyrazinamide and ethambutol (2HRZE), in adult participants with newly diagnosed, smear-positive, pulmonary drug sensitive tuberculosis (DS-TB). The main questions the trial aims to answer are: * What is the optimal dose of TBAJ876 to continue further in development. * What is the bactericidal activity of bedaquiline with pretomanid and linezolid (B-Pa-L) compared to 2HRZE and TBAJ876-Pa-L over 8 weeks * What is the efficacy and safety of the 26-week B-Pa-L regimen compared with the SOC (2HRZE/4HR) in participants with DS-TB. Participants will be seen regularly during treatment (up to 26 weeks) and follow-up (52 weeks post treatment) for safety and efficacy assessments, including but not limited to: * Safety labs, ECGs, vital signs, physical exams, PK sampling, neuropathy assessments and adverse event monitoring * Sputum collection

Timeline

Start

2023-10-31

Primary completion

2024-12-27

Completion

2027-02

Publications

• Background Olugbosi M, Beumont M, Lombard L, Nedelman J, Timm J, Black T, Bruning-Barry R, Hickman D, Lombardi A, Betteridge M, Egizi E, Marcopulos L, Henderson J, Seidel S, Foraida S, Benhayoun M, Sun E. Protocol for a phase 2, partially blinded, randomized trial assessing the safety and efficacy of sorfequiline or bedaquiline in combination with pretomanid and linezolid in adult participants with newly diagnosed, drug-sensitive, smear-positive pulmonary tuberculosis (NC-009). Trials. 2026 Jan 6;27(1):102. doi: 10.1186/s13063-025-09413-5.
• Darpo B, Nedelman J, Bruning-Barry R, Hickman D, Kleiman R, Lombardi A, Xue H. Cardiodynamic evaluation of sorfequiline (TBAJ-876): results from a first-in-human study. Antimicrob Agents Chemother. 2026 Mar 4;70(3):e0127325. doi: 10.1128/aac.01273-25. Epub 2026 Jan 30.
• Komm OD, Tyagi S, Garcia A, Almeida D, Chang Y, Li S-Y, Castillo JR, Converse PJ, Black T, Fotouhi N, Nuermberger EL. Contribution of telacebec to novel drug regimens in a murine tuberculosis model. Antimicrob Agents Chemother. 2025 Jan 31;69(1):e0096224. doi: 10.1128/aac.00962-24. Epub 2024 Dec 9.

Drugs

Indications