Assessing the prevalence of Non-Alcoholic Fatty Liver Disease in adults

The Olmsted NAFLD Epidemiology Study (TONES)

Not applicable Interventional Mayo Clinic · NCT04365855

This study is trying to find out how common Non-Alcoholic Fatty Liver Disease is among adults in Olmsted County, Minnesota, to help improve early diagnosis and treatment options.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment800 (estimated)
Ages18 Years and up
SexAll
SponsorMayo Clinic Academic / other
Locations1 site (Rochester, Minnesota)
Trial IDNCT04365855 on ClinicalTrials.gov

What this trial studies

This study focuses on understanding the prevalence of Non-Alcoholic Fatty Liver Disease (NAFLD) and Non-Alcoholic Steatohepatitis (NASH) within a population. Researchers will enroll a random sample of adults from Olmsted County, Minnesota, to create a well-characterized cohort for validating diagnostic models and determining long-term outcomes. The study employs various interventions, including Magnetic Resonance Elastography and liver biopsies, to gather comprehensive data on liver health. The ultimate goal is to develop effective screening strategies for early diagnosis and intervention.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 or older residing in Olmsted County with no prior diagnosis of NAFLD.

Not a fit: Patients with a history of excessive alcohol consumption or contraindications to MRI may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved early diagnosis and treatment options for patients with liver disease.

How similar studies have performed: Other studies have shown success in using machine learning models for diagnosing liver diseases, indicating potential for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Olmsted County residents at the time of search
* Age 18 or older
* No personal history of NAFLD diagnosis (administrative codes)

Exclusion Criteria:

* Alcohol in excess (more than 20 gm per week in women and 30 gm per week in men)
* Currently pregnant
* Have contraindications to MRI (MRI incompatible implanted devices, severe claustrophobia)

Where this trial is running

Rochester, Minnesota

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 Non-Alcoholic Fatty Liver DiseaseNon-Alcoholic Steatohepatitis
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.