3 Clinical Trials for Various Conditions
The availability of biological samples from individuals with alcoholic liver disease (ALD), as well as samples from appropriate heavy drinking, yet healthy controls and non-drinking healthy controls, is an essential first step in the translation of basic research advances to the clinic. The purpose of the Clinical Core component of the P50 Northern Ohio Alcohol Center (NOAC) is to provide biological samples (plasma/serum, buffy coats, and urine) from patients with different stages of alcoholic liver disease, as well as healthy control subjects, to members of the NOAC. These samples can then be used to test specific hypotheses related to the presence of specific biomarkers in the serum, functional immune activity in PBMCs and/or genetic polymorphisms that may predict severity of disease, short- and long-term morbidity and mortality and/or responsivity to specific therapeutic interventions commonly used in clinical practice. This study is building on the established biorepositories and the diversity of outstanding clinical expertise at the Cleveland Clinic. This biorepository included clinical samples (plasma, serum, buffy coats, and urine) from patients with different stages of ALD and subjects who are heavy drinkers without ALD, recruited from the Cleveland Clinic alcohol use disorder treatment clinic. This study will be responsible for collecting more data to help build the CCF-ALD biorepository via subject recruitment and communication and specimen collection.
The current goal in the treatment of Alcoholic Liver Disease (ALD) is to manage ALD-associated complications as there are no disease-specific therapies. Identifying disease-specific therapies to slow ALD progression is critical to improving the outcomes in these patients. Despite preclinical treatment studies in animal models that have shown promise, clinical trials in ALD patients have been limited by the absence of sensitive, quantitative methods for identifying severity and monitoring progression of liver disease. The rates of progression of liver disease in ALD are variable and difficult to predict, which makes assessments of therapies difficult. Clinical measures of hepatic or biliary disease (e.g., bilirubin, transaminases) may be normal, only mildly elevated and/or stable despite ongoing organ damage. Liver biopsies are diagnostic, but are invasive and are of limited value for longitudinal monitoring. Currently clinical imaging, including standard volumetric imaging (MRI and ultrasonography) and hepatic fibrosis assessment (e.g. Fibroscan) are also of limited utility in fully staging disease severity and monitoring progression in ALD. The absence of clinically available methods for accurately determining the severity and progression of liver disease progression in ALD has limited implementation of clinical trials using novel therapeutic agents. Development of non-invasive imaging biomarkers to assess rates of liver progression will overcome this barrier and allow for such studies to be undertaken. This study intends to perform a one-time MRI on patients with ALD to search for these biomarkers that can improve the diagnosis and treatment of ALD patients.
Prior studies in animal models have established that the pathogenesis of alcoholic liver disease (ALD) is regulated in part by the effects of chronic alcohol abuse on hepatic methionine metabolism. The hypothesis of the clinical study was that provision of the methionine metabolite S-adenosylmethionine (SAM) would correct abnormal hepatic methionine metabolism thereby effectively treating ALD. The two goals of the clinical research were a)to determine the clinical relationship of aberrant hepatic methionine metabolism to ALD by comparisons of patterns of serum methionine metabolites in groups of ALD patients, alcoholics without liver disease, and normal healthy subjects, and b) to determine the treatment effects of SAM on patterns of serum methionine metabolites and on the histopathology and biochemical features of liver injury in ALD patients.