An observational study in MASLD (Metabolic Dysfunction-Associated Steatotic Liver Disease), Mediterranean Diet and Lifestyle (Sedentary Behavior and Physical Activity), sponsored by Maastricht University Medical Center. Completed at 1 site in Turkey (Türkiye). Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-23.
Sponsored by Maastricht University Medical Center · Observational
MASLD is with 25% the most prevalent liver disorder in Western society and is associated with overweight, obesity, metabolic syndrome (MetS), type 2 diabetes mellitus (T2DM) and cardiovascular diseases (CVD). MASLD is defined by a hepatic fat accumulation of more than 5% in the absence of classical causes of steatogenesis (e.g. alcohol and steatogenic drugs). It represents a broad spectrum of clinical entities from steatosis to advanced liver disease with hepatic failure. Most of the patients have simple steatosis, however in about 15-30% steatohepatitis (MASH) develops, which leads to an overall increase in morbidity and mortality due to the progression to fibrosis, cirrhosis and hepatocellular carcinoma (HCC). Patients with MASLD have no or few, mainly specific symptoms; and generally there is a silent progression of simple steatosis to NASH and in the end liver-related morbidity and mortality. Despite the clinical importance and the potential impact on healthcare resources, the majority of MASLD patients are currently not detected due to the lack of non-invasive methods to diagnose MASLD. To date, the prevalance of MASLD in Turkey among subjects at risk, and its relation to common comorbidities such as obesity, T2DM and CVD is not clear. Therefore, identification of MASLD patients in this cohort will give information on the prevalence in the group of uncomplicated overweight and obesity and those with concomitant cardiometabolic diseases. By early detecting these patients at risk to develop progressive liver diseases and extrahepatic manifestations, it will be possible to intervene and improve health. Within this context, this study aims to detect prevalence of MASLD among risk groups. Also, the risk factors related to MASLD etiology and progression, such as overweight, obesity, T2DM, CVD, diet and physical activity will be studied to have a better understanding of their presumed causal relationship with MASLD.
This study is designed to study the prevalence of and risk factors associated with MASLD in adult populations at-risk of MASLD. Participants will undergo liver assessments via vibration controlled transient elastography. Lifestyle, demographic, and biochemical data will be collected.
1,273 studies on the registry are indexed under Sedentary Behavior; 300 are open to participants now.
This study's enrollment of 459 is above the median of 158 across 176 observational studies indexed under Sedentary Behavior.
Browse Sedentary Behavior studies →Maastricht University Medical Center is the lead sponsor of 853 studies on the registry; 114 are open to participants now.
Counted across the registry records on this site, refreshed daily.
459 male and female participants aged between 18-80, who can sign the informed consent and are eligible to participate.
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.
One of the following conditions:
Exclusion Criteria:
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.
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.
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HbA1c
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis C tests
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Prevalence of Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)
Proportion of participants with hepatic steatosis defined by controlled attenuation parameter (CAP ≥248 dB/m) measured using vibration-controlled transient elastography
Time frame: baseline
Association Between Lifestyle Factors and Hepatic Steatosis
Association between Mediterranean diet adherence (assessed by MEDAS score) and physical activity level (assessed by IPAQ) with hepatic steatosis assessed by CAP (dB/m)
Time frame: Baseline
Association of Circulating Biomarkers With MASLD
Association of serum biomarkers (uric acid, ferritin, vitamin D) with MASLD presence defined by CAP ≥248 dB/m
Time frame: baseline
Prevalence of Significant Fibrosis
Proportion of participants with significant liver fibrosis defined by liver stiffness measurement (LSM ≥8 kPa) assessed by vibration-controlled transient elastography
Time frame: baseline
Plan to share: Undecided
No publications or documents are linked to this record.
Ran from Jan 2023 to primary completion in May 2024, 16 months.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Maastricht University Medical Center →