Metabolic Syndrome Clinical Trial
Official title:
Prediction of Severity of Liver Disease in Patients With Suspected Nonalcoholic Fatty Liver Disease (NAFLD) by 13C Octanoate Breath Test (OBT)
The purpose of the study is to demonstrate that the ¹³C-Octanoate Breath Test (OBT) can be used as an aid, in conjunction with other clinical information and medical history, for evaluating disease severity and detecting NASH with a high probability.
Status | Terminated |
Enrollment | 61 |
Est. completion date | June 2012 |
Est. primary completion date | May 2012 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - Adult men or women (>18 years of age) - • Liver -biopsy ( at least 1.7 cm and 4 portal tracts) performed within 6 months of breath test or planned within the next 6 weeks, providing no treatment for liver disease was given between the biopsy and the OBT Any elevation of liver enzymes above the upper limit of normal (any or all of the following: AST,ALT, GGT, Alkaline phosphatase) - At least one of the features of the metabolic syndrome - waist circumference > 100 cm for men, 88 cm for women - triglycerides > 150 mg/dl - fasting blood sugar > 110 mg/dl - HDL cholesterol < 40 mg/dl - blood pressure > 130/85 mm Hg - No other known co-existent liver disease, excluded by appropriate serologic testing Exclusion Criteria: - Positive studies for any of the following: - hepatitis C (PCR) - hepatitis B (surface antigen or DNA) - iron saturation > 60% + gene test for hereditary hemochromatosis - antinuclear antibody at a titer > 1: 160 along with hypergammaglobulinemia and ALT levels>250 U/L - Patient has Alpha-1-antitrypsin level below lower limit of normal (< 150 mg/dl) - Patient has alcohol consumption > 20 gm/day for women and > 30 gm/day for men - Patient is pregnant - Patient has been taking known hepatotoxic drugs e.g. (e.g.acebutolol, indomethacin,phenylbutazone,allopurinol,isoniazid,phenytoin,atenolol,ketoconazole,piroxicam,carbamazepine,labetalol,probenecid,cimetidine,maprotiline,pyrazinamide,dantrolene, metoprolol,quinidine,diclofenac, mianserin)• Patients that have had more than 10% reduction in body weight since biopsy - Patient with known severe congestive heart failure (LVEF on echocardiogram < 20%) - Patient with known severe pulmonary hypertension (By echocardiogram, PAS >45 mmHg) - Patient with uncontrolled diabetes mellitus (HA1c>10) - Patient with previous surgical bypass surgery - Patient with extensive short bowel syndrome(>100 cm) - Patient currently receiving total parenteral nutrition - Patient is a recipients of any organ transplant - Patients that received any anti-viral treatment or any other liver therapy between the time of the biopsy and the breath test. - Women who are pregnant - Patients with an acute current exacerbation of chronic obstructive pulmonary disease or bronchial asthma. - Patient has taken drugs that can interfere with octanoate metabolism or can also cause NAFLD independent of the metabolic syndrome, including: corticosteroids, amiodarone, tetracycline, valproic acid, methotrexate, stavudine, zidovudine. - Patients unable or refuse to sign informed consent - Patients that based on the opinion of the investigator should not be enrolled into this study - Patients that are participating in other clinical trials evaluating experimental treatments or procedures |
Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic
Country | Name | City | State |
---|---|---|---|
United States | Baylor College of Medicine | Houston | Texas |
United States | Virginia Commonwealth University | Richmond | Virginia |
Lead Sponsor | Collaborator |
---|---|
Virginia Commonwealth University | Exalenz Bioscience LTD. |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | The Peak Value of the PDR (Percentage Dose Recovery of 13C) of OBT (Octanoate Breath Test) | To assess the ability of the OBT to assess disease severity in patients with suspected NAFLD (non alcoholic fatty liver disease) compared to NAS (Non-alcoholic-steatohepatitis (NASH) Activity Score) scoring system, where steatosis is scaled from 0-3, lobular inflammation is scaled from 0-3 and hepatocellular ballooning is scaled from 0-2. NAS score greater or equal to 5 indicates NASH. The higher the PDR peak, the better the liver health and function.PDR units are percent per hour of 13C dose recovery and describes rate of metabolism. The PDR peak is the highest rate of metabolism the liver reaches.The total range of NAS is 0-8. | 1 hour | No |
Secondary | Histology -NAS Scoring of Liver Biopsy | OBT will be compared to histology (including NAS score as described above)and other parameters to develop severity score. Only subjects with biopsy from routine clinical practice will be enrolled. NAS (Non-alcoholic-steatohepatitis (NASH) Activity Score) scoring system includes the following components: steatosis, which is scaled from 0-3, lobular inflammation, which is scaled from 0-3 and hepatocellular ballooning, which is scaled from 0-2. NAS score greater or equal to 5 indicates NASH. The range of the NAS score is from 0-8. |
Up to 6 months | No |
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