Portal Hypertension in Non-alcoholic Fatty Liver Disease: Association With Cardiovascular Risk and Identification of Non-invasive Biomarkers (THESIS)
- Conditions
- Fatty Liver Disease
- Interventions
- Other: A complete cardiovascular and liver characterization will be carried out
- Registration Number
- NCT04191044
- Lead Sponsor
- Instituto de Investigación Marqués de Valdecilla
- Brief Summary
Non-alcoholic fatty liver disease (NAFLD) is the most frequent cause of chronic liver disease in our environment. Preliminary data suggest that portal hypertension may exist in the initial phases of NAFLD due to mechanisms that have not yet been elucidated. The clinical relevance of its development in these initial phases is unknown, while in more advanced phases new data are required to confirm the close relationship between portal hypertension and the risk of decompensation described in other etiologies. Likewise, the influence of fibrosis and portal hypertension on the cardiovascular risk of patients with NAFLD is unknown. The aim of the present multicenter project is to characterize the presence of portal hypertension and the mechanisms involved in its development in the different stages of NAFLD, to assess the association between the degree of portal hypertension and the development of portal hypertension-related complications, to know the early cardiovascular risk in the different stages of the disease, and to identify noninvasive biomarkers of the presence and severity of portal hypertension.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- UNKNOWN
- Sex
- All
- Target Recruitment
- 170
- Age between 18 and 65 years.
- Clinical suspicion of NAFLD.
- Severe (controlled attenuation parameter (CAP) ≥330 dB/m) or mild steatosis (CAP: 298-317 dB / m), and FibroScan® grade 2 fibrosis (M probe: 7-9 kpa; XL probe: 5-7.5 kpa) in patients with grade 1 or 2 obesity and insulin resistance (HOMA index> 2.6) or diabetes mellitus.
- Fibroscan® grade 3 or 4 fibrosis (M probe:> 9 kpa; XL probe:> 7.5 kpa).
- Decompensated NAFLD cirrhosis (i.e. development of ascites, variceal hemorrhage, and/or hepatic encephalopathy) up to Child B (9 points).
- Signature of informed consent.
- Concomitant liver disease and patients with acute on chronic liver failure.
- Excessive alcohol consumption (≥ 30 grams per day in men and ≥ 20 grams per day in women).
- Comorbidities (HIV infection, connective diseases, prothrombotic disorders) and/or drugs (didanosine, azathioprine, oxaliplatin) associated with the presence of idiopathic non-cirrhotic portal hypertension.
- Clinical history of cardiovascular disease (ischemic cardiomyopathy, atrial fibrillation, valvular defects, severe arterial hypertension, previous hospitalizations secondary to heart failure, cerebrovascular disease).
- Severe renal impairment, defined by creatinine clearance <15 ml/min/1.73m2.
- Any previous or current thrombosis in any venous territory.
- Uncontrolled psychiatric illness
- Contraindication to liver biopsy or any of the complementary tests included in the project.
- Hepatocellular carcinoma that does not meet Milan criteria.
- Pregnancy or breastfeeding
- Significant comorbidities that entail a functional limitation and/or a life expectancy of less than 12 months.
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description NAFLD with severe steatosis and grade <3 fibrosis in patients A complete cardiovascular and liver characterization will be carried out NAFLD with severe steatosis and grade \<3 fibrosis in patients with grade 1 or 2 obesity and insulin resistance (HOMA index\> 2.6) or diabetes mellitus. Decompensated NAFLD cirrhosis A complete cardiovascular and liver characterization will be carried out Decompensated NAFLD cirrhosis (i.e. development of ascites, variceal hemorrhage, and/or hepatic encephalopathy) up to Child B (9 points) NAFLD with mild steatosis and grade <3 fibrosis in patients A complete cardiovascular and liver characterization will be carried out NAFLD with mild steatosis and grade \<3 fibrosis in patients with grade 1 or 2 obesity and insulin resistance (HOMA index\> 2.6) or diabetes mellitus. NAFLD with advanced fibrosis A complete cardiovascular and liver characterization will be carried out NAFLD with advanced fibrosis (i.e. grade 3 or 4 fibrosis) without previous portal hypertension-related complications
- Primary Outcome Measures
Name Time Method Number of patients with NAFLD and advanced fibrosis with portal hypertension 1 months Threshold of portal hypertension leading to portal hypertension-related complications in patients with NAFLD 1months Number of patients with NAFLD without advanced fibrosis and severe steatosis with portal hypertension 1 months number of the mechanisms responsible for the appearance of portal hypertension by specifically assessing the following 1 months An increase in sinusoidal vascular resistance and the relative importance of its structural (sinusoidal compression) and functional (endothelial dysfunction and activation of starry cells) components, Splanchnic vasodilatation leading to portal hyperflow and hyperdynamic circulation, proinflammatory state and Activation of angiogenesis.
- Secondary Outcome Measures
Name Time Method Impact of portal hypertension and hepatic fibrosis on early cardiovascular risk and the degree of liver and kidney function. 1 months Non-invasive biomarkers of the presence and severity of portal hypertension through metabolomics, extracellular vesicles and / or other analytical markers 1 months liquid biopsy