A Longitudinal Observational Study of Patients With Nonalcoholic Steatohepatitis (NASH) and Related Conditions Across the Entire Spectrum of Nonalcoholic Fatty Liver Disease (NAFLD)

Establish an understanding of the current natural history of NASH at academic and community medical centers

A detailed analysis of demographics, concurrent medications, metabolic and cardiovascular co-morbidities, staging of liver disease, and outcomes for patients with NASH managed in diverse clinical settings will serve as an important comparator for subsequent interventions that alter the treatment paradigm for this disease.

Time frame: 10 years

Evaluate NASH treatment regimens being used in clinical practice

Currently, there are no FDA approved therapies for NASH, however clinicians may use a variety of interventions including diet and exercise programs, vitamin E, bariatric surgery or other unapproved uses of some cholesterol, lipid lowering, anti-diabetic and anti-inflammatory medications as well as alternative medications. TARGET-NASH will monitor the safety and effectiveness of the various treatment choices in enrolled patients.

Time frame: 10 years

Examine populations underrepresented in phase II-III clinical trials

Patients with cirrhosis, age \> 70, patients who consume moderate amounts of alcohol and patients with multiple comorbidities such as severe depression, chronic fatigue, fibromyalgia, type 2 diabetes, inflammatory bowel disease, or cardiovascular disease.

Time frame: 10 years

Evaluate optimal duration and combination of NASH therapies to achieve clinical response and clinical remission

In addition to diet and exercise, type, dose and duration of therapy of each NASH treatment (both current unapproved therapies and future FDA approved drugs) will be closely followed, with a goal to monitor treatment paradigms and various combination regimens for clinical response and clinical remission.

Time frame: 10 years

Examine liver histology

Time frame: 10 years

Estimate adverse event frequency and severity and describe management practices

NASH can often be an asymptomatic disease in the setting of other disease-related comorbidities such as diabetes and cardiovascular disease. Once NASH progresses to cirrhosis, these patients can suffer the attendant complications of decompensated liver disease including debilitating fatigue, muscle wasting, ascites, bleeding, encephalopathy, hepatocellular carcinoma, and death. NASH therapies may increase the frequency and severity of certain adverse events, such as edema (pioglitazone), some cancers (vitamin E), and new agents or combinations of agents may have their own unique adverse event profiles and varying needs for management plans (e.g., pruritus and dyslipidemia).

Time frame: 10 years

Evaluate the impact of NASH therapies on medical co-morbidities

Time frame: 10 years