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Rifapentine- and moxifloxacin-containing short-course regimens for mild spinal tuberculosis: study protocol for a multicenter, randomized, non-inferiority phase II clinical trial

Yue-E. Wu, Jing Cao, Li Wang, Ying Wei, Hui-Xin Liu, Lei Qi, Wen Zhang, Feng Liu et al.

Frontiers in Pharmacology, 2025

Abstract

Background Spinal tuberculosis is the most common form of osteoarticular infection, with recommended anti-tuberculosis treatment durations typically being long (9–18 months), even for mild cases, increasing the risks of drug resistance, toxicity, and poor patient adherence. This study aims to explore, in patients with mild spinal tuberculosis, whether a new combination of anti-tuberculosis drugs (containing rifapentine and moxifloxacin) could shorten the treatment duration. Methods and Analysis This trial is an open-label, randomized, controlled, non-inferiority trial comparing the efficacy and safety of a short-course regimen [6-month anti-TB regimen] containing rifapentine and moxifloxacin with empirical long-course regimen [12-month anti-TB regimen] in the treatment of patients with mild spinal tuberculosis. Patients diagnosed with mild spinal tuberculosis who meet the inclusion and exclusion criteria will be recruited and randomized in a 1:1 ratio to either of the two arms. Empirical long-course regimen includes rifampin, isoniazid, pyrazinamide and ethambutol (2RHZE/10RH), while short-course regimen includes rifapentine, moxifloxacin, isoniazid and pyrazinamide (2HRtZM/4HRtM). The primary outcomes are TB-recurrence rate at 24 months after completion of treatment and proportion of participants with grade 3 or higher adverse events during treatment with study medications. Discussion This trial will provide evidence whether a short-course regimen of anti-TB drugs…

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Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design.

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