Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Exploring the tiny world inside the aortic valve during surgery

Official title: Non-interventional Study Exploring the Composition of the Valvular Microbiota of Patients Undergoing Cardiac Surgery

Run by University Hospital, Toulouse · NCT07075601 · Data updated 2026-11-12

This study tests the DNA and microbiota found in the blood and explanted aortic valve of patients undergoing valve replacement or repair.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment200 (estimated)
SponsorUniversity Hospital, Toulouse
Academic / other
Locations1 site (Toulouse, France)
StatusRecruiting
StartedNovember 19, 2025
Main results expectedAugust 31, 2029
Study endsAugust 31, 2029
Registry record updatedJune 1, 2026
Trial IDNCT07075601 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults undergoing aortic valve surgery requiring valve explantation, able to provide informed consent.

Probably not a fit

Patients who do not have detectable microbiota or who do not experience related complications may see no direct benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This non-randomized study collects blood and valve tissue during cardiac surgery to study the valve-associated microbiota and its possible link to outcomes after valve procedures. Researchers will sequence DNA from blood, use valve tissue from explanted valves, and track serious post-operative complications. The goal is to understand whether residual or introduced microbiota relate to valve degeneration, thrombosis, or other adverse events. The study is observational in nature with no experimental treatment given to patients.

Why it matters

Potential benefit: If successful, the findings could clarify whether valve-associated microbes influence postoperative outcomes and long-term valve durability.

How similar studies have gone: Earlier work has shown valve-associated microbiota in explanted valves, suggesting this is a plausible but not fully proven area of study.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male or female patient.
* Present an indication for cardiac surgery that requires explantation of the aortic valve.
* Be able to receive information about the study process and understand the study participation information form.
* State their non-opposition to participating in the study.

Exclusion Criteria:

* Patients infected with HIV
* Age under 18
* Under court supervision, guardianship, or curatorship
* Patients with a history of infective endocarditis.

Where it's running

  • Rangueil Hospital
    Toulouse, France, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.