La Molina

Researchers are evaluating quabodepistat-containing treatment regimens for adults and adolescents aged 14 years and older with rifampicin-resistant or multidrug-resistant pulmonary tuberculosis RRMDR-TB. The study aims to determine if adding quabodepistat to other TB drugs can shorten treatment duration to 4 months for fluoroquinolone-sensitive TB and provide a safer alternative compared to the current 6-month WHO-endorsed regimens. This Phase 3, randomized, open-label trial also compares treatments for patients with fluoroquinolone-resistant TB. Participants will be divided into two main groups based on fluoroquinolone sensitivity. Those with fluoroquinolone-sensitive RRMDR-TB will receive either an experimental 4-month regimen BPaQM bedaquiline, pretomanid, quabodepistat, moxifloxacin or a 6-month control regimen BPaLM bedaquiline, pretomanid, linezolid, moxifloxacin. Those with fluoroquinolone-resistant RRMDR-TB will receive either an experimental 6-month regimen BPaQ bedaquiline, pretomanid, quabodepistat or a control 6-month regimen BPaL bedaquiline, pretomanid, linezolid. Dosing schedules vary by regimen and last either 4 or 6 months. During the 16-month follow-up, participants will undergo regular assessments including sputum samples, chest X-rays, laboratory tests, and safety evaluations. Researchers will measure treatment effectiveness by the proportion with unfavorable outcomes 12 months after randomization and monitor adverse events. Additional outcomes include time to sputum culture conversion, microbiological relapse, and drug plasma levels. Safety will be closely monitored throughout treatment and follow-up periods.