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RecruitingNCT07786831Updated Nov 6, 2026

Dietary Intervention Study on Liver Health in Young Adults

An interventional study of Mediterranean Diet Intervention and General Healthy Diet Intervention in Liver Health, sponsored by Hochschule Campus Wien (University of Applied Sciences Campus Vienna). Recruiting at 1 site in Austria. Open to participants aged 20 Years to 30 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-06.

Sponsored by Hochschule Campus Wien (University of Applied Sciences Campus Vienna) · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Started Aug 2026; still recruiting 2 months later.
Updated Nov 6, 2026Primary completion movedStudy completion moved+1 moreGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
20 Years to 30 Years
Sex
All
01

Study summary

This prospective randomized dietary intervention study investigates the effects of two dietary approaches on liver health in young adults over a 12-week period. Participants will be randomly assigned to either a Mediterranean diet intervention or a healthy diet based on general dietary recommendations.

Liver health will be assessed using the Ultrasound-Guided Attenuation Parameter (UGAP), together with laboratory parameters, body composition measurements, and anthropometric assessments. Measurements will be performed at baseline, after 6 weeks, and after 12 weeks.

The study aims to evaluate changes in liver fat and related metabolic parameters over time and to investigate associations between UGAP measurements, laboratory parameters, and body composition.

02

Conditions studied

  • Liver Health

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Keywords

  • Liver health
  • Hepatic steatosis
  • Ultrasound-Guided Attenuation Parameter (UGAP)
  • Mediterranean diet
  • Dietary intervention
  • Body composition
  • Oxidative stress
  • DNA damage
  • Liver function tests
03

In context

Fatty Liver

662 studies on the registry are indexed under Fatty Liver; 184 are open to participants now.

This study's planned enrollment of 100 is above the median of 60 across 431 interventional studies indexed under Fatty Liver.

Browse Fatty Liver studies →

Lead sponsor

Hochschule Campus Wien (University of Applied Sciences Campus Vienna) is the lead sponsor of 3 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

The criteria were revised on the registry on Nov 6, 2026. See what changed

Ages eligible
20 Years to 30 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 20 to 30 years
  • Currently enrolled as a student
  • (BMI) ≤ 39.9 kg/m²
  • Willingness to attend all three study visits at baseline, Week 6, and Week 12
  • Willingness to follow the assigned dietary intervention throughout the 12-week study period
  • Ability to understand the study information and provide written

Exclusion criteria

Exclusion Criteria:

  • Known acute or chronic liver disease, including non-alcoholic fatty liver disease (NAFLD) or metabolic dysfunction-associated steatotic liver disease (MASLD)
  • Acute hepatitis
  • History of liver transplantation
  • Excessive alcohol consumption
  • Heart failure or ascites
  • Electronic or implanted medical devices that contraindicate bioelectrical impedance analysis (BIA), such as a cardiac pacemaker
  • Pregnancy
  • Regular use of medications other than oral , including medications with potential hepatotoxic effects
  • Extreme dietary patterns or use of dietary supplements that may interfere with study outcomes
  • Unwillingness to follow the assigned dietary intervention or comply with standardized measurement conditions
  • Inability to provide
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
100 participants (estimated)

Study arms

  • Experimental
    Mediterranean Diet Intervention

    Participants assigned to the Mediterranean diet intervention group receive standardized dietary education and are instructed to follow a Mediterranean dietary pattern for 12 weeks. Dietary guidance is delivered through standardized educational materials. Dietary intake and adherence are monitored using repeated 24-hour dietary recalls and food-frequency questionnaires (FFQs).

    Behavioral: Mediterranean Diet Intervention

  • Active comparator
    Control Group - General Dietary Recommendations

    Participants assigned to the control group receive standardized dietary education based on general healthy eating recommendations for 12 weeks. Participants are encouraged to maintain their usual dietary habits while incorporating general healthy dietary recommendations, including the preferential use of plant-based oils instead of animal fats. The intervention does not specifically promote a Mediterranean dietary pattern.

    Behavioral: General Healthy Diet Intervention

Interventions

  • BehavioralMediterranean Diet Intervention

    Participants receive standardized dietary education and are instructed to follow a Mediterranean dietary pattern for 12 weeks. Core recommendations include approximately 4 tablespoons of olive oil per day, fish 2-3 times per week, legumes at least 3 times per week, and nuts or seeds at least 3 times per week. Participants are additionally encouraged to consume vegetables, fruits, whole-grain foods, and other foods characteristic of a Mediterranean dietary pattern, while limiting foods that are not characteristic of this dietary pattern.

  • BehavioralGeneral Healthy Diet Intervention

    Participants receive standardized dietary education based on general healthy eating recommendations for 12 weeks. Participants are encouraged to maintain their usual dietary habits while incorporating general healthy dietary recommendations, including the preferential use of plant-based oils instead of animal fats. The intervention does not specifically promote a Mediterranean dietary pattern.

06

What researchers measure

Primary outcomes

  1. Change From Baseline in Ultrasound-Guided Attenuation Parameter (UGAP)

    Liver steatosis will be quantitatively assessed using the Ultrasound-Guided Attenuation Parameter (UGAP). Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

Secondary outcomes

  1. Change in Visual Liver Steatosis Grade

    Liver steatosis will be visually assessed and classified into steatosis grades 0-3. Changes in steatosis grade will be assessed over the 12-week intervention period.

    Time frame: Baseline, Week 6, and Week 12

  2. Change From Baseline in Urinary Albumin Concentration

    Urinary albumin concentration will be assessed in spontaneous urine samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  3. Change From Baseline in Aspartate Aminotransferase (AST)

    Aspartate aminotransferase (AST) will be assessed in blood samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  4. Change From Baseline in Alanine Aminotransferase (ALT)

    Alanine aminotransferase (ALT) will be assessed in blood samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  5. Change From Baseline in Urinary Creatinine Concentration

    Urinary creatinine concentration will be assessed in spontaneous urine samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  6. Change From Baseline in Gamma-Glutamyl Transferase (GGT)

    Gamma-glutamyl transferase (GGT) will be assessed in blood samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  7. Change From Baseline in Alkaline Phosphatase (ALP)

    Alkaline phosphatase (ALP) will be assessed in blood samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  8. Change From Baseline in Bilirubin

    Bilirubin will be assessed in blood samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  9. Change From Baseline in Triglycerides

    Triglycerides will be assessed in blood samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  10. Change From Baseline in High-Density Lipoprotein Cholesterol (HDL-C)

    High-density lipoprotein cholesterol (HDL-C) will be assessed in blood samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  11. Change From Baseline in Low-Density Lipoprotein Cholesterol (LDL-C)

    Low-density lipoprotein cholesterol (LDL-C) will be assessed in blood samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  12. Change From Baseline in C-Reactive Protein (CRP)

    C-reactive protein (CRP) will be assessed in blood samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  13. Change From Baseline in Glycated Hemoglobin (HbA1c)

    Glycated hemoglobin (HbA1c) will be assessed in blood samples. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  14. Change From Baseline in Body Fat Mass Assessed by Bioelectrical Impedance Analysis (BIA)

    Body fat mass will be assessed using bioelectrical impedance analysis (BIA). Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  15. Change From Baseline in Skeletal Muscle Mass Assessed by Bioelectrical Impedance Analysis (BIA)

    Skeletal muscle mass will be assessed using bioelectrical impedance analysis (BIA). Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  16. Change From Baseline in Total Body Water Assessed by Bioelectrical Impedance Analysis (BIA)

    Total body water will be assessed using bioelectrical impedance analysis (BIA). Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

Other outcomes

  1. Change From Baseline in DNA Damage Measured as Percentage of DNA in the Comet Tail

    DNA damage will be assessed using the comet assay and expressed as the percentage of DNA in the comet tail (% tail DNA). Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  2. Change From Baseline in Malondialdehyde (MDA) Concentration

    Malondialdehyde (MDA) concentration will be assessed as a biomarker of oxidative stress. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  3. Change From Baseline in Ferric Reducing Antioxidant Power (FRAP)

    Ferric reducing antioxidant power (FRAP) will be assessed as a measure of antioxidant capacity. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  4. Change From Baseline in Plasma Reduced Glutathione (GSH) Concentration

    Plasma reduced glutathione (GSH) concentration will be assessed as a marker of redox status. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  5. Change From Baseline in Plasma Oxidized Glutathione (GSSG) Concentration

    Plasma oxidized glutathione (GSSG) concentration will be assessed as a marker of redox status. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  6. Change From Baseline in Waist Circumference

    Waist circumference will be measured at each study visit. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

  7. Change From Baseline in Hip Circumference

    Hip circumference will be measured at each study visit. Change from baseline will be assessed at Week 6 and Week 12.

    Time frame: Baseline, Week 6, and Week 12

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedDate before it movedWhere the date was before it movedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2026 (actual). Primary completion is estimated for Dec 2026, 4 months after the start.

Of 136 non-industry interventional studies with no phase under Fatty Liver, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 40. This study's planned 4 months is below that.

Counting every sponsor, half of 145 studies reached it within 21 months; a quarter within 10 and three quarters within 39.

Since we started tracking on Sep 25, 2026, the dates moved once, on Nov 6, 2026: primary completion Nov 2026 → Dec 2026 and completion Nov 2026 → Dec 2026.

Earlier changes are on the record history on ClinicalTrials.gov ↗

How these figures are worked out, and which studies are left out of them.

Registered
Aug 19, 2026
First posted
Aug 26, 2026
StartActual
Aug 31, 2026
Primary completionEst.
Dec 2026was Nov 2026
CompletionEst.
Dec 2026was Nov 2026
Last update
Nov 6, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Primary completion
Nov 2026→Dec 2026
Nov 6, 2026
Study completion
Nov 2026→Dec 2026
Nov 6, 2026
Eligibility
1 inclusion criterion edited
What changed in the criteria
Inclusion criteria
  • EditedBody mass index (BMI) less than or equal to 29≤ 39.9 kg/m\^2m²
Nov 6, 2026
Show all 1 update
  1. Nov 6, 2026
    Primary completion Nov 2026→Dec 2026
    Study completion Nov 2026→Dec 2026
    Eligibility 1 inclusion criterion edited
    What changed in the criteria
    Inclusion criteria
    • EditedBody mass index (BMI) less than or equal to 29≤ 39.9 kg/m\^2m²
    + 2 other changes: verification date and design details

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07786831
Lead sponsor
Hochschule Campus Wien (University of Applied Sciences Campus Vienna)
Responsible party
Sponsor
First posted
Aug 26, 2026
Start date
Aug 31, 2026
Primary completion
Dec 2026 (estimated)
Completion
Dec 2026 (estimated)
Last update
Nov 6, 2026

Study contacts

Daniel Trimmel, MSc
Contact
daniel.trimmel@hcw.ac.at
+43 1 606 68 77 ext. 4824
Agnes Draxler, PhD
Contact
agnes.draxler@hcw.ac.at
+43 1 606 68 77 ext. 4207
Agnes Draxler, PhD
principal investigator · Hochschule Campus Wien (University of Applied Sciences Campus Vienna)
Daniel Trimmel, MSc
principal investigator · Hochschule Campus Wien (University of Applied Sciences Campus Vienna)

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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