Rifampicin at High Dose for Difficult-to-Treat Tuberculosis

The purpose of this study is to assess the safety of rifampicin given at a dose three times as the standard one, in persons with tuberculosis that belong to groups that have not been widely included in previous trials.

A prospective, one-arm, open-label trial to evaluate the safety of rifampicin at 35mg/kg per day, added to the remaining standard first-line drugs, in subjects with tuberculosis belonging to groups that have been underrepresented in previous trials: persons living with HIV, older than 65 years, malnourished, diabetics, and chronic stable liver disease. The main outcome is the rate of severe adverse events and adverse events leading to treatment modification as compared to that in a historical cohort (patietns belonging to these groups treated in the same centers from 2017-2019). Microbiological efficacy and extended follow-up data until one year after treatment will also be collected.