Improving heart health in liver transplant recipients by targeting TMAO levels

Targeting Trimethylamine N-Oxide for Cardiovascular Health In Liver Transplant Recipients

Not applicable Interventional Virginia Commonwealth University · NCT06043531

This study is testing if changing the diet of liver transplant recipients by adding extra virgin olive oil can lower TMAO levels and improve their heart health.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment30 (estimated)
Ages18 Years and up
SexAll
SponsorVirginia Commonwealth University Academic / other
Locations1 site (Richmond, Virginia)
Trial IDNCT06043531 on ClinicalTrials.gov

What this trial studies

This study aims to investigate the role of trimethylamine N-oxide (TMAO) in cardiovascular dysfunction among liver transplant recipients. It focuses on understanding how elevated TMAO levels may contribute to the increased risk of cardiovascular disease in these patients. The intervention involves dietary modifications, specifically the use of extra virgin olive oil (EVOO), to potentially lower TMAO levels and improve vascular health. By exploring this relationship, the study seeks to establish targeted interventions that could enhance long-term cardiovascular outcomes for liver transplant patients.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 18 years old who have received a liver transplant and can communicate in English.

Not a fit: Patients with recent acute rejection, active malignancies, or those following a vegetarian or vegan diet may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved cardiovascular health and reduced risk of heart disease in liver transplant recipients.

How similar studies have performed: While the specific approach of targeting TMAO in liver transplant recipients is novel, there is existing evidence linking TMAO to cardiovascular disease in the general population.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Aged \> 18 years
* Speak and understand English
* Have received and LT

Exclusion Criteria:

* Acute cellular or chronic rejection within 3 months
* Post-LT liver or non-liver related malignancy
* Active viral hepatitis (B or C) or autoimmune hepatitis
* Untreated biliary strictures or vascular complications (e.g. hepatic artery thrombosis)
* Poorly controlled diabetes (HbA1c \>8.5%)
* Relapse of alcohol use after LT
* Follow a vegetarian or vegan diet
* Current pregnancy
* Unable to provide informed consent

Where this trial is running

Richmond, Virginia

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 Liver Transplant
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.