Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03683589
Other study ID # 2012544
Secondary ID R01DK113701
Status Completed
Phase
First received
Last updated
Start date February 1, 2019
Est. completion date July 31, 2020

Study information

Verified date October 2020
Source University of Missouri-Columbia
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

NAFLD is the most prevalent liver disease in the U.S., and there is a serious need to understand its progression to the advanced state, nonalcoholic steatohepatitis (NASH). Previous studies has shown that elevated de novo lipogenesis (DNL) is the unique, early event distinguishing patients with NAFLD from equally-obese subjects with low IHTG. The purpose of this study is to directly by measure DNL in human liver tissue and comparing it to liver histological scores from patient biopsies.


Description:

The development of nonalcoholic fatty liver disease (NAFLD) progresses from a state of elevated intrahepatic triglycerides (IHTG) to liver inflammation, and ultimately, hepatic apoptosis and fibrosis. NAFLD is the most prevalent liver disease in the U.S., and there is a serious need to understand its progression to the advanced state, nonalcoholic steatohepatitis (NASH). Elevated de novo lipogenesis (DNL) is the unique, early event distinguishing patients with NAFLD from equally-obese participants with low IHTG. DNL is the process of liver synthesis of fatty acids (FAs) from carbohydrate. In humans, studies have shown that DNL significantly predicts the magnitude of IHTG, however, it is unknown whether the pathway plays a role in disease progression. Evidence supporting this concept includes the fact that the primary product of DNL is the saturated FA, palmitate, which in cell culture has been shown to significantly contribute to oxidative stress and inflammation. Recent rodent data show that upregulation of DNL through dietary supplementation of sucrose exacerbated the hepatotoxic effects of excess dietary FAs. A preliminary abstract presented by others at the 2017 Liver Meeting suggested that DNL may not be different between patients with low and high liver fibrosis, although these data were collected using an indirect measure of liver disease. Here, in the present study, the hypothesis will be tested directly by measuring DNL in human liver tissue and comparing it to liver histological scores (NAFLD Activity Score, NAS) from patient samples.


Recruitment information / eligibility

Status Completed
Enrollment 49
Est. completion date July 31, 2020
Est. primary completion date August 21, 2019
Accepts healthy volunteers
Gender All
Age group 22 Years to 65 Years
Eligibility Inclusion and exclusion criteria are similar to the criteria set by a larger project (NCT03151798). Inclusion criteria: - Men and women (pre and post-menopausal) - Overweight/obese with BMI = 25.9 or = 50.0 kg/m2 - Characteristics of the metabolic syndrome, pre-diabetes (fasting glucose 100-125 mg/dL or 2h glucose 140-200 mg/dL) or diabetes type II - 22-65 years of age - use of tobacco products or no use of these products - Sedentary, = 60 minutes per week of structured physical activity Exclusion criteria: • The following conditions exclude subjects for this project because bariatric surgery would not be performed in these populations. Individuals with acute disease or advanced cardiac, liver, or renal disease, excessive alcohol use, anticoagulation therapy, or any severe co-morbid condition limiting life expectancy < 1 year. Women pregnant or trying to become pregnant.

Study Design


Locations

Country Name City State
United States University of Missouri Columbia Missouri

Sponsors (3)

Lead Sponsor Collaborator
University of Missouri-Columbia American Society for Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Country where clinical trial is conducted

United States, 

References & Publications (2)

Donnelly KL, Smith CI, Schwarzenberg SJ, Jessurun J, Boldt MD, Parks EJ. Sources of fatty acids stored in liver and secreted via lipoproteins in patients with nonalcoholic fatty liver disease. J Clin Invest. 2005 May;115(5):1343-51. — View Citation

Lambert JE, Ramos-Roman MA, Browning JD, Parks EJ. Increased de novo lipogenesis is a distinct characteristic of individuals with nonalcoholic fatty liver disease. Gastroenterology. 2014 Mar;146(3):726-35. doi: 10.1053/j.gastro.2013.11.049. Epub 2013 Dec 4. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary De novo lipogenesis DNL will be measured directly in the liver biopsies Dec 2019
Secondary Histological scores (NAFLD activity score) Tissue histology will be performed to obtain NAFLD activity score (NAS). A pathologist, trained in determining the NAS of histological samples, grades them for the quantity of fat present, and the levels of inflammation and fibrosis. A score of 0 is considered completely healthy (devoid of any of these three characteristics), while a score of 8 indicates severe pathology, advanced as far as cirrhosis. Dec 2019
Secondary Liver enzymes AST and ALT will be measured on the day when liver biopsy is collected Dec 2019
Secondary FibroScan Liver fat and fibrosis will also be measured non-invasively via FibroScan TM Dec 2019
See also
  Status Clinical Trial Phase
Recruiting NCT05650307 - CV Imaging of Metabolic Interventions
Not yet recruiting NCT05536466 - The Influence of Having Bariatric Surgery on the Pharmacokinetics, Safety and Efficacy of the Novel Non-nucleoside Reverse Transcriptase Inhibitor Doravirine N/A
Active, not recruiting NCT04583683 - Effects of Very Low Calorie Diet vs Metabolic Surgery on Weight Loss and Obesity Comorbidities N/A
Completed NCT04099654 - The Effect of Core Stabilization Exercise Program in Obese Subjects Awaiting Bariatric Surgery N/A
Completed NCT03809182 - Effect of Dexmedetomidine on Postoperative Glucose and Insulin Levels. Phase 4
Completed NCT03638843 - Endoscopic Gastric Mucosal Devitalization (GMD) as a Primary Obesity Therapy - Part 2 N/A
Withdrawn NCT05845359 - Intraoperative Methadone for Postoperative Pain Control Phase 4
Not yet recruiting NCT04343040 - Perioperative Evaluation of Glucose Profile Using Continuous Glucose Monitoring System in Glucose Intolerant Patients N/A
Withdrawn NCT03095404 - Intravenous Lidocaine for Post-Operative Pain Control in Patients Undergoing Bariatric Bowel Surgery Early Phase 1
Recruiting NCT03100292 - Korean OBEsity Surgical Treatment Study N/A
Active, not recruiting NCT04357119 - Common Limb Length in One-anastomosis Gastric Bypass N/A
Completed NCT04883268 - Focusing on Body Functionality After Bariatric Surgery N/A
Completed NCT03210207 - Gastric Plication in Mexican Patients N/A
Completed NCT02300168 - Neuromuscular Blockade: Outcome and Recovery for Laparoscopic Bariatric Surgery N/A
Unknown status NCT01264120 - The Impact of a Bariatric Rehabilitation Service on Patient Outcomes N/A
Recruiting NCT03972319 - Omega-3 Supplementation for LIver VolumE Reduction Study (OLIVER) Study Early Phase 1
Terminated NCT04626232 - Comparison of the Sleeve Gastrectomy Technique With a Nissen Fundoplication Added to the Conventional Sleeve Gastrectomy Technique in Morbidly Obese Patients N/A
Completed NCT03643783 - Impact of Plasma Soluble Prorenin Receptor in Obese and Type 2 Diabetic Patients
Completed NCT04219852 - Contraception and Bariatric Surgery: Evaluation of Contraception and Contraceptive Knowledge of Women Undergoing Bariatric Surgery at the University Hospital of Reims
Recruiting NCT05570474 - Effect of Protein Supplementation on Fat Free Mass Preservation After Bariatric Surgery N/A