To assess the efficacy of S-adenosyl methionine (SAMe) in symptomatic relief of primary biliary cirrhosis (PBC), we will treat up to 50 patients with either SAM-e (800 mg BID) or placebo for 12 weeks in a cross-over, double-blind placebo-controlled study.

S-adenosyl methionine is a nutritional supplement which is available as an over-the-counter formula and is used for treatment of depression and arthritic pain. SAMe is produced in virtually all cells and participates in many biochemical pathways as a major methyl contributor. Intracellular levels of SAMe are often decreased in advanced liver disease. At present SAMe is undergoing extensive evaluation in a large multicenter, randomized controlled trial as an adjunctive therapy of alcoholic liver disease. SAMe has also been evaluated in patients with intrahepatic cholestasis and cholestasis of pregnancy with promising effects of relieving pruritus and fatigue and improving serum liver associated enzymes.

In this study, we will recruit patients with PBC who have pruritus or fatigue despite therapy with ursodiol (the currently recommended therapy of PBC which is partially effective in relieving pruritus and fatigue). After medical evaluation and a brief period of monitoring, patients will be randomized to receive either SAMe or placebo given in oral form in similar appearing capsules twice daily. Patients will be followed at regular intervals for symptoms as monitored by validated questionnaires as well as for side effects and serum biochemical and hematological tests. After 12 weeks, therapy will be withdrawn for 2 weeks and patients will then be switched to the alternative capsules, either SAMe or placebo, for another 12 weeks. The primary endpoints of therapy will be improvements in symptoms of pruritus or fatigue or both. Secondary endpoints will be improvements in serum biochemical liver related enzymes.

Intervention	Phase
Drug: S-adenosyl-methionine (SAMe) capsules	Phase II

Further Study Details: 

Expected Total Enrollment:  50

To assess the efficacy of S-adenosyl methionine (SAMe) in symptomatic relief of primary biliary cirrhosis (PBC), we will treat up to 50 patients with either SAM-e (800 mg BID) or placebo for 12 weeks in a cross-over, double-blind placebo-controlled study.

S-adenosyl methionine is a nutritional supplement which is available as an over-the-counter formula and is used for treatment of depression and arthritic pain. SAMe is produced in virtually all cells and participates in many biochemical pathways as a major methyl contributor. Intracellular levels of SAMe are often decreased in advanced liver disease. At present SAMe is undergoing extensive evaluation in a large multicenter, randomized controlled trial as an adjunctive therapy of alcoholic liver disease. SAMe has also been evaluated in patients with intrahepatic cholestasis and cholestasis of pregnancy with promising effects of relieving pruritus and fatigue and improving serum liver associated enzymes.

In this study, we will recruit patients with PBC who have pruritus or fatigue despite therapy with ursodiol (the currently recommended therapy of PBC which is partially effective in relieving pruritus and fatigue). After medical evaluation and a brief period of monitoring, patients will be randomized to receive either SAMe or placebo given in oral form in similar appearing capsules twice daily. Patients will be followed at regular intervals for symptoms as monitored by validated questionnaires as well as for side effects and serum biochemical and hematological tests. After 12 weeks, therapy will be withdrawn for 2 weeks and patients will then be switched to the alternative capsules, either SAMe or placebo, for another 12 weeks. The primary endpoints of therapy will be improvements in symptoms of pruritus or fatigue or both. Secondary endpoints will be improvements in serum biochemical liver related enzymes.

Genders Eligible for Study:  Both

Criteria

INCLUSION CRITERIA:

Age at entry at least 21 years old.

Pathologically diagnosed primary biliary cirrhosis (made by a liver biopsy performed within 10 years of enrollment) with receipt of stable doses of ursodiol for at least 6 months before enrollment. The dose of urosodiol will be adjusted to achieve stable serum liver enzymes levels.

Symptoms of itching or fatigue or both. The presence of symptoms will be verified by medical history, symptom questionnaire and visual analogue scales (results greater than 20 mm) on at least two screening visits.

Written informed consent.

EXCLUSION CRITERIA:

Evidence of another form of liver disease.

Hepatitis B as defined as presence of hepatitis B surface antigen (HBsAg) in serum.

Hepatitis C as defined by presence of hepatitis C virus (HCV) RNA in serum.

Primary sclerosing cholangitis as defined by liver histology.

Wilson disease as defined by ceruloplasmin below the limits of normal and liver histology consistent with Wilson disease.

Autoimmune hepatitis as defined by antinuclear antibody (ANA) of 3 EU or greater (ELISA) and liver histology consistent with autoimmune hepatitis or previous response to immunosuppressive therapy for autoimmune hepatitis.

Alpha-1-antitrypsin deficiency as defined by alpha-1-antitrypsin level less than normal and liver histology consistent with alpha-1-antitrypsin deficiency.

Hemochromatosis as defined by presence of 3+ or 4+ stainable iron on liver biopsy and homozygosity for C282Y or compound heterozygosity for C282Y/H63D. Patients with iron saturation indices of greater than 45% and serum ferritin levels of greater than 300 ng/ml for men and greater 250 ng/ml for women will undergo genetic testing for C282Y and H63D.

Drug induced liver disease as defined on the basis of typical exposure and history.

Bile duct obstruction as suggested by imaging studies done within the previous six months.

Decompensated liver disease as defined by a Child-Pugh score of 7 or greater.

Significant systemic or major illnesses other than liver disease, including congestive heart failure, coronary artery disease, cerebrovascular disease, pulmonary disease with hypoxia, renal failure, organ transplantation, serious psychiatric disease including depression, malignancy and any other conditions that in the opinion of the investigator would preclude treatment. Patients who are suffering from severe depression defined by a score of greater than or equal to 25 in CES-D screening test will not be eligible for enrollment.

Known HIV infection.

Active substance abuse, such as alcohol , inhaled or injection drugs within the previous one year.

Pregnancy, lactation or inability to practice adequate contraception in women in child bearing age.

Evidence of hepatocellular carcinoma as shown by a liver mass on imaging studies or alphafetoprotein levels greater than 200 ng/ml.

Any other condition, which in the opinion of the investigators would impede competence or compliance or possibility hinder completion of the study.

History of hypersensitivity reactions to S-adenosyl methionine.

Serum creatinine greater than 1.5mg/dl in men and greater than 1.4 mg/dl for women.

Please refer to this study by ClinicalTrials.gov identifier  NCT00125281

Maryland
      National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), 9000 Rockville Pike,  Bethesda,  Maryland,  20892,  United States; Recruiting

Study ID Numbers:  050207; 05-DK-0207
Last Updated:  July 29, 2005
Record first received:  July 29, 2005
ClinicalTrials.gov Identifier:  NCT00125281
Health Authority: United States: Federal Government
ClinicalTrials.gov processed this record on 2005-08-02