Updated May 2026 · ClinicalTrials.gov
Shorter and Safer Treatment Regimens for Latent TB
SSTARLET: Shorter and Safer Treatment Regimens for Latent TB
Shorter and Safer Treatment Regimens for Latent TB (NCT06498414) is a Phase 2 / Phase 3 interventional studying Tuberculosis Infection, Latent, sponsored by McGill University Health Centre/Research Institute of the McGill University Health Centre. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.
About This Trial
Our study rationale is based on: 1. Tuberculosis Preventive Treatment (TPT) is given to healthy people and needs to be safe; 2. Tuberculosis Preventive Treatment (TPT) with shorter regimens are superior with respect to acceptance, completion, and costs; 3. 4 months of Rifampin 10mg/kg (4R10) is the safest regimen, but is completed by \<80% of patients; 4. The safety of 2 months of Rifampin 20mg/kg (2R20) is similar to that of 4 months of Rifampin 10mg/kg (4R10), but completion is a concern; 5. 1-month regimens have promising efficacy; 6. Safety and tolerability must be carefully assessed with comparisons to 4 months of Rifampin 10mg/kg (4R10), and head-to-head with each other. OBJECTIVES: The investigator will use a Bayesian adaptive Phase 2 randomized open-label trial design to test at least three experimental Tuberculosis Preventive Treatment (TPT) regimens to identify at least one regimen of ≤2 months duration that has non-inferior safety, completion, and tolerability in adults and children relative to the reference Tuberculosis Preventive Treatment (TPT) regimen. The shortest, safest, and best tolerated regimen identified in this Phase 2 trial will be tested for effectiveness and efficacy in a Phase 3 trial. Specific Tuberculosis Preventive Treatment (TPT) regimens (All are daily and self-administered) Reference: Rifampin at a dose of 10 mg/kg/day for 4 months (4R10); Experimental: 1) Rifampin at 20 mg/kg/day for 2 months (2R20); (2) one month Levofloxacin and Rifapentine (1LP). At a later stage a 3rd experimental regimen will be selected and added: one another novel 1-2-month regimen identified from pre-clinical and clinical studies. When selected, this will be explained fully including preliminary data on safety and efficacy in an amended protocol and consent - which will be submitted for ethics and regulatory approval at that time).
What Stage of Research Is This?
Phase 2 trials evaluate whether a treatment actually works against Tuberculosis Infection, Latent and continue monitoring side effects. Phase 2 enrolls larger groups (typically 100–300 patients) and produces the first real efficacy signal. A successful Phase 2 readout is what unlocks the much larger Phase 3 confirmatory trials needed for FDA approval.
This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.
Target enrollment of 1,800 participants makes this one of the larger Tuberculosis Infection, Latent trials currently registered. Trials at this scale are typically global, run across many sites, and designed to generate the definitive evidence package for an FDA approval submission or a label expansion.
Who May Be Eligible (Plain English)
These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.
Original Eligibility Criteria
View original clinical language
Treatments Being Tested
rifampin standard arm
120 doses daily self-administered rifampin at 10mg/kg/day (max 600mg/day)
rifampin double dose
60 doses daily self-administered rifampin at 20 mg/kg (max. 1200 mg/day)
levofloxacin and rifapentine
30 doses daily self-administered levofloxacin (15 mg/kg, max 750mg/day and rifapentine (10mg/kg, max: 600mg)
Locations (13)
Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.
How to Talk to Your Doctor About This Trial
Bring the printable summary of this trial — including the NCT ID (NCT06498414), the sponsor (McGill University Health Centre/Research Institute of the McGill University Health Centre), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.
Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.
Authoritative Sources
The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.
Frequently Asked Questions
What is the NCT06498414 clinical trial studying?
Our study rationale is based on: 1. Tuberculosis Preventive Treatment (TPT) is given to healthy people and needs to be safe; 2. Tuberculosis Preventive Treatment (TPT) with shorter regimens are superior with respect to acceptance, completion, and costs; 3. 4 months of Rifampin 10mg/kg (4R10) is the safest regimen, but is completed by \<80% of patients; 4. The safety of 2 months of Rifampin 20mg/kg (2R20) is similar to that of 4 months of Rifampin 10mg/kg (4R10), but completion is a concern; 5. 1-month regimens have promising efficacy; 6. Safety and tolerability must be carefully assessed with… The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.
Who can participate in NCT06498414?
Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.
How do I contact the trial site for NCT06498414?
Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.
Is participating in a clinical trial safe?
Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.
Where can I verify the data on this page?
Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.
How This Page Is Built
Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.
Source: ClinicalTrials.gov API v2 record for NCT06498414. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06498414. Data: ClinicalTrials.gov."
Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.
Last updated 2026-05-08 · Data from ClinicalTrials.gov.