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Background: Non-Alcoholic Steatohepatitis (NASH) represents one of the stages of Non-Alcoholic Fatty Liver Disease (NAFLD) with a very high risk to evolve in cirrhosis and hepato-carcinoma.
Currently, the only diagnostic method is a liver biopsy that remains the gold standard for characterizing liver histologic alterations and fibrosis stages. There is no specific treatment for NASH, in fact no drugs are currently licensed specifically for treating this disease.
Aim: Our aim is to conduct a non-inferiority, randomized-controlled trial (RCT) comparing Roux-en-Y Gastric bypass (RYGB) with an intensive lifestyle modification plan (Very low-calorie diet, VLCD) for the reduction of advanced stages of fibrosis in subjects with obesity and NASH after 25% weight loss.
Materials and Methods: The Investigators will screen patients with obesity, NAFLD fibrosis score (NFS) >0.676 and FibroScan > 9.5 kPA who have a high probability of NASH with advanced stage of fibrosis.
Participants will undergo liver biopsy to make diagnosis according to the Steatosis Activity Fibrosis (SAF) score algorithm. Subjects with BMI ≥ 30 and ≤50 kg/m2, age 25-65 years and F3-F4 fibrosis stage at liver biopsy will be included and randomized 1:1 to RYGB or VLCD. Anthropometric parameters, body composition with DEXA and liver function with blood samples will be assessed at the enrolment. A mixed meal metabolic test will be also performed to evaluate insulin sensitivity and secretion. These procedures will be repeated after 25% weight loss. Expectation: The Investigators expect a reduction of 2 points of histological fibrosis after 25% weight loss following either metabolic surgery or dieting. The investigators foresee also reversal of NASH, improvement of metabolic syndrome and glycemic control, changes in insulin sensitivity and secretion, changes in lipid profile, in NASH liver markers, in Fibroscan variables and in body composition
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| intensive lifestyle modifications | Active Comparator | VLCD 800-850 Kcal/day |
|
| Roux-en-y-gastric bypass | Active Comparator | laparoscopic RYGB |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| roux -en-y- gastric bypass | Procedure | Roux-&-Y Gastric Bypass (RYGB) involves the use of a surgical stapler to create a small and vertically oriented gastric pouch with a volume of 30 ml. The upper pouch is completely divided by the gastric remnant and is anastomosed to the jejunum, 75 cm distally to the Treitz's ligament, through a narrow gastrojejunal anastomosis in a Roux-en-Y fashion. Bowel continuity is restored by an entero-entero anastomosis, between the excluded biliary limb and the alimentary limb, performed at 100 cm from the gastrojejunostomy. |
| Measure | Description | Time Frame |
|---|---|---|
| histological reduction of fibrosis | The primary outcome is the rate of histological reduction of 2 points of fibrosis after 25% weight loss following either metabolic surgery or dieting | 2 years |
| Measure | Description | Time Frame |
|---|---|---|
| Liver histology | Reversal of NASH: number of partcipant with a NAFLD activity score (NAS: from 0 to 8) < 3; Changes in Fibroscan evaluation: number of participant with a FibroScan <9.5 kPa. | 2 years |
| Liver Markers |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| geltrude mingrone, professor | Policlinico A. Gemelli IRCCS | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Mingrone Geltrude | Roma | 00188 | Italy |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 30414863 | Result | Younossi ZM. Non-alcoholic fatty liver disease - A global public health perspective. J Hepatol. 2019 Mar;70(3):531-544. doi: 10.1016/j.jhep.2018.10.033. Epub 2018 Nov 9. | |
| 19691668 | Result | Vilar Gomez E, Rodriguez De Miranda A, Gra Oramas B, Arus Soler E, Llanio Navarro R, Calzadilla Bertot L, Yasells Garcia A, Del Rosario Abreu Vazquez M. Clinical trial: a nutritional supplement Viusid, in combination with diet and exercise, in patients with nonalcoholic fatty liver disease. Aliment Pharmacol Ther. 2009 Nov 15;30(10):999-1009. doi: 10.1111/j.1365-2036.2009.04122.x. Epub 2009 Aug 18. |
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| ID | Term |
|---|---|
| D015431 | Weight Loss |
| ID | Term |
|---|---|
| D001836 | Body Weight Changes |
| D001835 | Body Weight |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| ID | Term |
|---|---|
| D015390 | Gastric Bypass |
| ID | Term |
|---|---|
| D050110 | Bariatric Surgery |
| D049088 | Bariatrics |
| D000073319 | Obesity Management |
| D013812 | Therapeutics |
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|
| intensive life style modification | Dietary Supplement | Weight loss will be induced using a VLCD (800-850 kcal/day; 59% carbohydrate, 13% fat, 26% protein, 2% fiber) with replacement meals for 2 months, followed by structured food reintroduction every 2-8 weeks (about 50% carbohydrate, 35% total fat, and 15% protein), and an ongoing structured program with follow-up visits up to 25% body weight loss |
|
Changes in liver markers: number of participant with a significant reduction of AST and ALT from baseline;
| 2 years |
| Non-alcoholic Fatty Liver Disease Fibrosis score | Changes in Non-alcoholic Fatty Liver Disease Fibrosis score from baseline | 2 years |
| Fibrosis-4 (FIB-4) Index | Changes in Fibrosis-4 (FIB-4) Index for Liver Fibrosis from baseline; | 2 years |
| Fibroscan | Changes in Fibroscan evaluation: number of participant with a FibroScan <9.5 kPa. | 2 years |
| 15185306 | Result | Dixon JB, Bhathal PS, Hughes NR, O'Brien PE. Nonalcoholic fatty liver disease: Improvement in liver histological analysis with weight loss. Hepatology. 2004 Jun;39(6):1647-54. doi: 10.1002/hep.20251. |
| 25354830 | Result | Glass LM, Dickson RC, Anderson JC, Suriawinata AA, Putra J, Berk BS, Toor A. Total body weight loss of >/= 10 % is associated with improved hepatic fibrosis in patients with nonalcoholic steatohepatitis. Dig Dis Sci. 2015 Apr;60(4):1024-30. doi: 10.1007/s10620-014-3380-3. Epub 2014 Oct 30. |
| 26369473 | Result | Mingrone G, Panunzi S, De Gaetano A, Guidone C, Iaconelli A, Nanni G, Castagneto M, Bornstein S, Rubino F. Bariatric-metabolic surgery versus conventional medical treatment in obese patients with type 2 diabetes: 5 year follow-up of an open-label, single-centre, randomised controlled trial. Lancet. 2015 Sep 5;386(9997):964-73. doi: 10.1016/S0140-6736(15)00075-6. |
| 25917783 | Result | Lassailly G, Caiazzo R, Buob D, Pigeyre M, Verkindt H, Labreuche J, Raverdy V, Leteurtre E, Dharancy S, Louvet A, Romon M, Duhamel A, Pattou F, Mathurin P. Bariatric Surgery Reduces Features of Nonalcoholic Steatohepatitis in Morbidly Obese Patients. Gastroenterology. 2015 Aug;149(2):379-88; quiz e15-6. doi: 10.1053/j.gastro.2015.04.014. Epub 2015 Apr 25. |
| 32553765 | Result | Lassailly G, Caiazzo R, Ntandja-Wandji LC, Gnemmi V, Baud G, Verkindt H, Ningarhari M, Louvet A, Leteurtre E, Raverdy V, Dharancy S, Pattou F, Mathurin P. Bariatric Surgery Provides Long-term Resolution of Nonalcoholic Steatohepatitis and Regression of Fibrosis. Gastroenterology. 2020 Oct;159(4):1290-1301.e5. doi: 10.1053/j.gastro.2020.06.006. Epub 2020 Jun 15. |
| 25865049 | Result | Vilar-Gomez E, Martinez-Perez Y, Calzadilla-Bertot L, Torres-Gonzalez A, Gra-Oramas B, Gonzalez-Fabian L, Friedman SL, Diago M, Romero-Gomez M. Weight Loss Through Lifestyle Modification Significantly Reduces Features of Nonalcoholic Steatohepatitis. Gastroenterology. 2015 Aug;149(2):367-78.e5; quiz e14-5. doi: 10.1053/j.gastro.2015.04.005. Epub 2015 Apr 10. |
| 22707395 | Result | Bedossa P, Poitou C, Veyrie N, Bouillot JL, Basdevant A, Paradis V, Tordjman J, Clement K. Histopathological algorithm and scoring system for evaluation of liver lesions in morbidly obese patients. Hepatology. 2012 Nov;56(5):1751-9. doi: 10.1002/hep.25889. |
| 17393509 | Result | Angulo P, Hui JM, Marchesini G, Bugianesi E, George J, Farrell GC, Enders F, Saksena S, Burt AD, Bida JP, Lindor K, Sanderson SO, Lenzi M, Adams LA, Kench J, Therneau TM, Day CP. The NAFLD fibrosis score: a noninvasive system that identifies liver fibrosis in patients with NAFLD. Hepatology. 2007 Apr;45(4):846-54. doi: 10.1002/hep.21496. |
| 16545157 | Result | de Almeida SR, Rocha PR, Sanches MD, Leite VH, da Silva RA, Diniz MT, Diniz Mde F, Rocha AL. Roux-en-Y gastric bypass improves the nonalcoholic steatohepatitis (NASH) of morbid obesity. Obes Surg. 2006 Mar;16(3):270-8. doi: 10.1381/096089206776116462. |
| D005763 |
| Gastroenterostomy |
| D000714 | Anastomosis, Surgical |
| D013514 | Surgical Procedures, Operative |
| D013505 | Digestive System Surgical Procedures |