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Clinical Trial Summary

The METHOD study will examine whether adding metformin to standard antibiotic treatment for tuberculosis (TB) in people with HIV is safe and well tolerated. The study will also test if adding metformin clears the infection more quickly and with less lung damage. When enrolled, participants will have an equal chance of being in the group that takes standard TB medicines alone or in the group that also takes metformin. Participants will have a chance to be put on either: 1) standard TB medicines (isoniazid, rifampicin, ethambutol and pyrazinamide for two months, continuing isoniazid and rifampin for four more months) only; or 2) the same standard TB medicines plus metformin. Participants randomized to the metformin arm will take metformin for eleven weeks, starting one week after starting the standard TB medicines. In addition to monitoring for side effects, all participants will have studies of drug levels and lung and immune function.


Clinical Trial Description

The METHOD trial is a Phase II A randomized, open-label trial of metformin added to standard anti-tuberculosis treatment (ATT) and anti-retroviral therapy (ART) in TB/HIV co-infected patients. HIV-positive adults (treated or ART-naïve) newly diagnosed with sputum culture-positive, drug-sensitive pulmonary TB will be recruited to and enrolled in the study. All participants in the interventional study will take standard ATT for drug-sensitive pulmonary TB starting at enrollment. Participants in the metformin arm will begin taking metformin 1 week later and metformin will be stopped on week-12. The "omics" control group will include those (treated or ART-naïve) without evidence of active TB. The total cohort is sample size N=112, comprising 56 participants each in two parallel study arms (standard therapy or standard therapy plus metformin) with the goal of retaining 100 participants with evaluable data for analysis. The duration of the METHOD trial is 5 years. The duration of individual participation in the interventional arms of the study is 36 weeks, not including an initial period of screening over an interval of up to 14 additional days prior to study enrollment. The final clinic visit coincides with the completion of ATT at week-24. The final follow-up contact is a phone interview at week-36. Ten consenting participants from each study arm (n=20 total) will have intensive pharmacokinetic/pharmacodynamic (PK/PD) sampling. The remaining 92 participants will have sparse PK/PD sampling. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04930744
Study type Interventional
Source University of Massachusetts, Worcester
Contact Craig Innis, MBCHB
Phone +27 82 336 9626
Email cinnes@auruminstitute.org
Status Recruiting
Phase Phase 2
Start date August 26, 2021
Completion date November 1, 2025

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