Investigating rifampicin resistance in Staphylococcus aureus during latent tuberculosis treatment

Acquisition and Persistence of Rifampicin Resistance in Staphylococcus Aureus During and After Treatment for Latent Tuberculosis

Observational Region Skane · NCT05073926

This study is testing whether people being treated for latent tuberculosis with rifampicin or isoniazid are at risk of developing resistance to rifampicin in Staphylococcus aureus and if this resistance can spread to others in their households.

Quick facts

Study typeObservational
Enrollment100 (estimated)
Ages16 Years and up
SexAll
SponsorRegion Skane Academic / other
Locations1 site (Malmö)
Trial IDNCT05073926 on ClinicalTrials.gov

What this trial studies

This observational study examines the risk of developing rifampicin resistance in Staphylococcus aureus among patients undergoing treatment for latent tuberculosis with either rifampicin or isoniazid. Participants will provide swab samples from various body sites before, during, and after treatment to monitor for resistance mutations. The study also aims to assess the potential transmission of rifampicin-resistant S. aureus among household contacts of affected individuals. By utilizing whole genome sequencing, the research will analyze the genetic changes associated with resistance over time.

Who should consider this trial

Good fit: Ideal candidates for this study are individuals diagnosed with latent tuberculosis who are prescribed either 4 months of rifampicin or 6-9 months of isoniazid.

Not a fit: Patients who are not diagnosed with latent tuberculosis or those who do not meet the treatment criteria will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could help inform safer treatment protocols for latent tuberculosis that minimize the risk of developing antibiotic resistance.

How similar studies have performed: While the approach of studying rifampicin resistance in S. aureus is not widely tested, similar studies on antibiotic resistance have shown significant insights into microbial behavior.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* diagnosed with latent tuberculosis
* prescribed either 4 months rifampicin or 6-9 months isoniazide
* informed consent

Exclusion Criteria:

* none

Where this trial is running

Malmö

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Latent TuberculosisStaphylococcus Aureusrifampicinisoniazidestaphylococcus aureuslatent tuberculosisDrug Resistance, Microbial
Last reviewed 2026-06-13 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.