A randomized controlled trial of two adjunctive host-directed therapies in rifampin-resistant tuberculosis (DRTB-HDT).
EU CTIS ID: 2025-520745-80-00
What this study is testing
To investigate the safety, tolerability and preliminary efficacy of two therapies adjuvants (one anti-inflammatory and one antimicrobial) in patients with pulmonary tuberculosis resistant to Rifampicin. Efficacy objectives will include treatment and pulmonary function recovery measures, as well as eradication of M tuberculosis infection. Co-Primary Objectives: 1. VEMS la luna 6 2. Probability of stable crop conversion by month 6 Both co-primary objectives must be met for a treatment to be considered successful. The CC11050 and metforminium arms will each be compared to the control arm
- Therapeutic exploratory (Phase II)
A plain-language read of the study's public EU CTIS listing. The study team confirms the details.
Who can take part
You may be able to join if
- 1. Between the ages of 16 and 65 2. Able and willing to provide signed written consent, or verbal consent of witnesses in case of illiteracy, before undertaking any process-related procedures. In the case of children aged 16 or 17 years, consent of at least one parent or guardian plus consent of the child will be required. 3. Body weight (in light clothing without shoes) between 30 and 90 kg. 4. Positive sputum Xpert (TB/RIF or Ultra) with Ct ≤22, with subsequent culture confirmation. 5. RIF resistance diagnosed by Xpert OR Hain test OR phenotypic drug susceptibility testing 6. Chest radiograph meeting National TB Association criteria for moderate or very advanced pulmonary tuberculosis 7. If sexually active, willing to use an effective contraceptive method during TB treatment 8. HIV-1 seronegative, OR if HIV-1 seropositive, presenting to an African study site with a CD4 T-cell count > 100/μl and either currently receiving ART or willing to start ART during study participation, as specified NB: HIV+ patients will only be enrolled in African sites
You likely can't join if
- 1. Any condition for which participation in the trial, as judged by the investigator, could compromise the subject's well-being or prevent, limit, or confound protocol-specified assessments 2. Current or imminent treatment (within 24 hours) for malaria. 3. Pregnancy or breastfeeding 4. Severely ill, such that, in the opinion of the investigator, death is likely during the trial. 5. TB meningitis or other forms of severe TB with increased risk of poor outcome as judged by the investigator. 6. History of allergy or hypersensitivity to any of the study therapies or related substances. 7. Have participated in other clinical trials with investigational agents within 8 weeks prior to study initiation or currently enrolled in an investigational trial. 8. Previous RIF‐R‐TB treatment within the past 12 months 9. Cardiac arrhythmia requiring medication or any clinically significant ECG abnormality, in the opinion of the investigator 10. Requires treatment with drugs that are strong inducers or inhibitors of CYP3A4 (e.g., ketoconazole, lopinavir, or cobicistat), carbonic anhydrase inhibitors (e.g., acetazolamide), or OCT2 or MATE inhibitors (e.g., cimetidine, pyrimethamine). 11. Use of systemic corticosteroids within the past 28 days. 12. History of unstable diabetes mellitus requiring hospitalization for hyper‐ or hypoglycemia within the past year prior to screening or requiring treatment with metformin. 13. Subjects with any of the following abnormal laboratory values: A. creatinine >2 mg/dl b. hemoglobin <8 g/dL/ . c. platelets <100x109 cells/L d. serum potassium <3.5 e. alanine aminotransferase (ALT) ≥2.0 x ULN f. alkaline phosphatase (AP) >5.0 x ULN g. total bilirubin >1.5 mg/dL h. Hepatitis B surface antigen positive i. random blood glucose >140 mg/dL (7.8 mmol/L) j. SARS-CoV-2 PCR or antigen test positive NB: All inclusion criteria and none of the exclusion criteria must be met. NB: Enrolled patients whose initial sputum cultures subsequently fail to demonstrate RIF-R-TB growth will be excluded from the mITT and PP populations. They may be excluded from further study participation based on the individual benefit-risk ratio, as assessed by the study site, PI and DMC.
The study team makes the final eligibility decision.
Where it's taking place
- Georgia
- Moldova, Republic of
- South Africa
- Mozambique
Questions & answers
Do participants get paid in this trial?
This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.
Is it free to join, and do I need insurance?
Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part - confirm specifics with the study team.
How long does this study last?
The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.
Who can join this trial?
This study is enrolling all sexes, 65+ years, 18-64 years. The study team makes the final eligibility decision.
Where is this trial taking place?
Study sites include Georgia; Moldova, Republic of; South Africa; Mozambique. Enter your location above to see the nearest site and check your eligibility.
Explore other conditions
BridgeMD is an information and trial-matching tool - not medical advice, and not the study sponsor. Details come from EU CTIS; the study team decides eligibility.