Pulmonary Tuberculosis Clinical Trial
Official title:
Phase 2 Trial to Evaluate the Early EBA, Safety and Tolerability of Amoxicillin/Clavulanate With or Without Meropenem, Ertapenem or Rifampicin in Adults With Newly Diagnosed, Smear-Positive Rifampicin-Susceptible Pulmonary Tuberculosis
The goal of this single-center, open-labelled, clinical trial in two groups aims to proof that a specific group of antibiotics (carbapenems) can be used to treat pulmonary tuberculosis if it is combined with another antibiotic (amoxicillin/clavulanate). A total of 113 male or female participants (8 groups and 9 treatment regimens as group 8 was split into 2 groups of 4 participants receiving Rifafour e-275), aged between 18 and 65 years (inclusive), with newly diagnosed, smear-positive, pulmonary TB.
The overall objective of this study is to evaluate the 2-week bactericidal activity and pharmacokinetics of the following beta-lactam containing combinations with the aim to select the most active and implementable solution to be incorporated into a drug-resistant TB combination regimen: - Once or twice daily meropenem administered intravenously in combination with once or twice daily oral amoxicillin/clavulanic acid; - Once daily ertapenem administered intravenously and intramuscularly in combination with twice daily oral amoxicillin/clavulanic acid; - Twice daily oral amoxicillin/clavulanic acid; - Once daily rifampicin administered orally at highest currently established dosage of 35mg/kg in combination with twice daily oral amoxicillin/clavulanic acid. A single-center, open-labeled, clinical trial in two groups. The treatments are: Group 1: 1. Meropenem 6g intravenously once daily; plus amoxicillin/CA 2 x 1000mg/62.5mg orally 12-hourly on days 1-14. 2. Ertapenem 1g intramuscularly once daily; plus amoxicillin/CA 2 x 1000mg/62.5mg orally 12-hourly on days 1-14. Group 2: 3. Meropenem 3g intravenously twice daily; plus amoxicillin/CA 2 x 1000mg/62.5mg orally 12-hourly on days 1-14. 4. Ertapenem 1g intravenously once daily; plus amoxicillin/CA 2 x 1000mg/62.5mg orally 12-hourly on days 1-14. 5. Amoxicillin/CA 2 x 1000mg/62.5mg orally 12-hourly on days 1-14. 6. Rifampicin 35 mg/kg once daily; plus amoxicillin/CA 2 x 1000mg/62.5mg orally 12-hourly on days 1-14. 7. Meropenem 6g OR meropenem 4g intravenously once daily; plus amoxicillin/CA 2 x 1000mg/62.5mg orally once daily on days 1-14. A total of 4 participants per group will receive standard first line TB treatment as per the South African TB guidelines (Rifafour e-275) and is included as a control for the EBA quantitative mycobacteriology and to evaluate whether HRZE gives similar EBA results to that demonstrated in prior studies with this combination. The mycobacteriology laboratory will remain blinded until closure of the EBA results. Enrollment into group 1 will be completed before enrollment into group 2 will start. After completion of enrollment into group 1, there will be an interim analysis while enrollment into group 2 is ongoing. ;
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