Ultra-short, rifamycin-free four-drug treatment for drug-susceptible tuberculosis

PRESCIENT: A phase IIc, open-label, randomized controlled trial of ultra-short course bedaquiline, clofazimine, pyrazinamide and delamanid versus standard therapy for drug-susceptible tuberculosis

NIH-funded research Brigham and Women's Hospital · NIH-11086615

Compares an ultra-short, rifamycin‑free four-drug regimen (bedaquiline, clofazimine, pyrazinamide, delamanid) to standard treatment for adults with drug-susceptible tuberculosis, including people on HIV medicines.

Quick facts

Grant typeU01 cooperative agreement
Study typeNIH-funded research
Funding institutionBrigham and Women's Hospital NIH-funded
Lab location1 site (Boston, United States)
Project IDNIH-11086615 on NIH RePORTER

What this research studies

If you join this randomized, open-label trial you would be assigned to either an experimental short-course four-drug regimen or the current standard TB treatment and followed over time for cure and relapse. The drug combination was picked using an artificial-intelligence platform and showed very fast, relapse-free cures in animal studies. Doctors will monitor symptoms, side effects, and test sputum and other samples to see how quickly the infection clears. The trial is designed to find out whether a rifamycin-free option can shorten treatment and avoid drug interactions with antiretroviral therapy used by people with HIV.

Who could benefit from this research

Good fit: Adults (21 years and older) with confirmed drug-susceptible pulmonary tuberculosis, including people living with HIV who are on antiretroviral therapy, would be the intended participants.

Not a fit: People with drug-resistant TB, children, pregnant people, or those with medical exclusions such as significant heart rhythm problems or other contraindications to the study drugs may not be eligible or benefit from this trial.

Why it matters

Potential benefit: If successful, this could greatly shorten TB treatment courses and reduce problematic interactions with HIV medications.

How similar studies have performed: Bedaquiline-containing regimens and other novel TB combinations have shown benefit in prior clinical work and the specific four-drug combo achieved rapid, relapse-free cures in animal models, but this exact ultra-short rifamycin-free regimen is new in human trials.

Where this research is happening

Boston, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Conditions Acquired Immune Deficiency Syndrome VirusAcquired Immunodeficiency Syndrome Virus
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.