Three M Study (Malabsorption, Microbiota, Mini-Gastric Bypass)

NCT03412149 | Completed

• 1 other identifier: RG11715C7CE1AD8A
• Study Type: interventional
• Target: 90
• Locations: 1 country
• Sites: 1

Brief Summary

Bariatric surgery represents the best therapeutic option to induce sustainable weight loss and to solve serious comorbidities improving the life-expectancy and the quality of life. Actually the choice of the procedure is based on the surgeon's and patients preference . Mini gastric bypass(MGB) is an emerging procedure offering excellent results in terms of weight loss and comorbidities (mainly metabolic) control. On the other hand, recent data indicated that the gut microbiota may mediate some of the beneficial effects of bariatric surgery and changes in the composition and diversity of the gut microbiota have been observed after RY Gastric Bypass (RYGB) in humans as well as in mice. However, there are no prospective investigations on Gut Microbiota changes after MGB, despite the procedure is described as "malabsorptive" and there are no studies comparing gut microbiota shift and malabsorption entity in humans after RYGB vs MGB. Thereafter prospective data on the incidence of bile reflux esophageal lesions after MGB are lacking. The aim of the present multicentric prospective comparative study is to evaluate malabsorption and gut microbiota shift after laparoscopic RYGB vs MGB at 1 year.

Conditions

Obesity (Disorder)

Keywords

Malabsorption, Mini Gastric Bypass, Roux en Y Gastric Bypass

Outcome Measures

Primary Outcomes (1)

• Gut Microbiota

  To evaluate and compare Roux en Y Gastric Bypass vs Mini Gastric Bypass microbiota profile shift 1 year after surgery and its impact on metabolic and nutritional status after surgery.

  0-6-12 Months

Secondary Outcomes (1)

• Glucagon - like peptide 1 (GLP-1)

  0-12 Months

Study Arms (2)

Mini Gastric Bypass

ACTIVE COMPARATOR

Mini Gastric Bypass: The gastric pouch will be performed starting below the incisura angularis (transverse resection 4 cm) on the lesser curvature (18).Then the stomach will be transected against a 36 Fr bougie up to the gastro-esophageal junction Then 1/3 of the small bowel will be excluded (approximately 200cms) and 3.5-4 cm gastro-jejunostomy will be performed by linear stapler.

Procedure: Mini Gastric Bypass

Roux en Y Gastric Bypass

ACTIVE COMPARATOR

Roux en Y Gastric Bypass: The steps of the standard double loop RYGB technique will be followed (17). The gastric pouch will be created 7 cm from the gastro-esophageal junction to obtain a volume of 30-40 ml, and the length of the alimentary limb will be 150 cm and 3.5-4 cm gastro-jejunostomy will be performed by linear stapler. The length of the biliopancreatic limb will be from 65 to 75 cm beyond the ligament of Treitz. The lengths of both limbs should carefully measured with a graduated instrument. The mesenteric defects will be closed.

Procedure: Roux en Y Gastric Bypass

Interventions

Mini Gastric Bypass PROCEDURE

Standardization of the techniques will be guaranteed: 1. Mini Gastric Bypass Arm 2. Roux en Y Gastric Bypass arm All patients will have intraoperative measurement of the whole length of bowel from Treitz ligament to the ileocecal junction (expected range 6-8 m).The common limb will be therefore about 2/3 of total small bowel length.

Mini Gastric Bypass

Roux en Y Gastric Bypass PROCEDURE

Standardization of the techniques will be guaranteed: 1. Mini Gastric Bypass Arm 2. Roux en Y Gastric Bypass arm All patients will have intraoperative measurement of the whole length of bowel from Treitz ligament to the ileocecal junction (expected range 6-8 m).The common limb will be therefore about 2/3 of total small bowel length.

Roux en Y Gastric Bypass

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• BMI 40-55 kg/m2
• Non smokers
• Primary Mini Gastric Bypass or Roux en Y Gastric Bypass without any concomitant surgeries except hiatal hernia repair
• Enrollment in the two study groups will be on the basis of patient choice.

You may not qualify if:

• Smokers
• Different bowel measurement (plus or minus 10%).
• Conversion to open surgery, reoperation
• Helicobacter Pylori positive previous or current
• Free PPI 4 weeks before 6th month (after surgery)
• Corticosteroids, vitamine E, fish oil treatment 2 months before surgery
• Anti or pre- biotics treatment 2 months before surgery
• Chronic gastrointestinal diseases or syndromes
• Previous bariatric surgery (intragastric balloon excluded)
• Previous resective bowel surgery
• Previous pancreatic surgery
• Previous Hepato BilioPancreatic surgery
• Gallbladder gallstones

Sponsors & Collaborators

• University of Roma La Sapienza: lead

Study Sites (1)

ICOT Hospital

Latina, 04100, Italy

Location

Related Publications (19)

• Milone M, De Placido G, Musella M, Sosa Fernandez LM, Sosa Fernandez LV, Campana G, Di Minno MN, Milone F. Incidence of Successful Pregnancy After Weight Loss Interventions in Infertile Women: a Systematic Review and Meta-Analysis of the Literature. Obes Surg. 2016 Feb;26(2):443-51. doi: 10.1007/s11695-015-1998-7.

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• Campanile FC, Boru CE, Rizzello M, Puzziello A, Copaescu C, Cavallaro G, Silecchia G. Acute complications after laparoscopic bariatric procedures: update for the general surgeon. Langenbecks Arch Surg. 2013 Jun;398(5):669-86. doi: 10.1007/s00423-013-1077-2. Epub 2013 Mar 22.

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• Rutledge R. The mini-gastric bypass: experience with the first 1,274 cases. Obes Surg. 2001 Jun;11(3):276-80. doi: 10.1381/096089201321336584.

  PMID: 11433900 BACKGROUND

• Rutledge R, Walsh TR. Continued excellent results with the mini-gastric bypass: six-year study in 2,410 patients. Obes Surg. 2005 Oct;15(9):1304-8. doi: 10.1381/096089205774512663.

  PMID: 16259892 BACKGROUND

• Alexandrou A, Davis PA, Law S, Whooley BP, Murthy SC, Wong J. Esophageal cancer in patients with a history of distal gastrectomy. Arch Surg. 2002 Nov;137(11):1238-42. doi: 10.1001/archsurg.137.11.1238.

  PMID: 12413309 BACKGROUND

• Lee WJ, Ser KH, Lee YC, Tsou JJ, Chen SC, Chen JC. Laparoscopic Roux-en-Y vs. mini-gastric bypass for the treatment of morbid obesity: a 10-year experience. Obes Surg. 2012 Dec;22(12):1827-34. doi: 10.1007/s11695-012-0726-9.

  PMID: 23011462 BACKGROUND

• Bruzzi M, Rau C, Voron T, Guenzi M, Berger A, Chevallier JM. Single anastomosis or mini-gastric bypass: long-term results and quality of life after a 5-year follow-up. Surg Obes Relat Dis. 2015 Mar-Apr;11(2):321-6. doi: 10.1016/j.soard.2014.09.004. Epub 2014 Sep 16.

  PMID: 25614356 BACKGROUND

• Noun R, Skaff J, Riachi E, Daher R, Antoun NA, Nasr M. One thousand consecutive mini-gastric bypass: short- and long-term outcome. Obes Surg. 2012 May;22(5):697-703. doi: 10.1007/s11695-012-0618-z.

  PMID: 22411569 BACKGROUND

• Lee WJ, Lee YC, Ser KH, Chen SC, Chen JC, Su YH. Revisional surgery for laparoscopic minigastric bypass. Surg Obes Relat Dis. 2011 Jul-Aug;7(4):486-91. doi: 10.1016/j.soard.2010.10.012. Epub 2010 Oct 30.

  PMID: 21159561 BACKGROUND

• Wang W, Wei PL, Lee YC, Huang MT, Chiu CC, Lee WJ. Short-term results of laparoscopic mini-gastric bypass. Obes Surg. 2005 May;15(5):648-54. doi: 10.1381/0960892053923752.

  PMID: 15946455 BACKGROUND

• Cavin JB, Voitellier E, Cluzeaud F, Kapel N, Marmuse JP, Chevallier JM, Msika S, Bado A, Le Gall M. Malabsorption and intestinal adaptation after one anastomosis gastric bypass compared with Roux-en-Y gastric bypass in rats. Am J Physiol Gastrointest Liver Physiol. 2016 Sep 1;311(3):G492-500. doi: 10.1152/ajpgi.00197.2016. Epub 2016 Jul 14.

  PMID: 27418681 BACKGROUND

• Graessler J, Qin Y, Zhong H, Zhang J, Licinio J, Wong ML, Xu A, Chavakis T, Bornstein AB, Ehrhart-Bornstein M, Lamounier-Zepter V, Lohmann T, Wolf T, Bornstein SR. Metagenomic sequencing of the human gut microbiome before and after bariatric surgery in obese patients with type 2 diabetes: correlation with inflammatory and metabolic parameters. Pharmacogenomics J. 2013 Dec;13(6):514-22. doi: 10.1038/tpj.2012.43. Epub 2012 Oct 2.

  PMID: 23032991 BACKGROUND

• Tremaroli V, Karlsson F, Werling M, Stahlman M, Kovatcheva-Datchary P, Olbers T, Fandriks L, le Roux CW, Nielsen J, Backhed F. Roux-en-Y Gastric Bypass and Vertical Banded Gastroplasty Induce Long-Term Changes on the Human Gut Microbiome Contributing to Fat Mass Regulation. Cell Metab. 2015 Aug 4;22(2):228-38. doi: 10.1016/j.cmet.2015.07.009.

  PMID: 26244932 BACKGROUND

• Liou AP, Paziuk M, Luevano JM Jr, Machineni S, Turnbaugh PJ, Kaplan LM. Conserved shifts in the gut microbiota due to gastric bypass reduce host weight and adiposity. Sci Transl Med. 2013 Mar 27;5(178):178ra41. doi: 10.1126/scitranslmed.3005687.

  PMID: 23536013 BACKGROUND

• Peterson LA, Zeng X, Caufield-Noll CP, Schweitzer MA, Magnuson TH, Steele KE. Vitamin D status and supplementation before and after bariatric surgery: a comprehensive literature review. Surg Obes Relat Dis. 2016 Mar-Apr;12(3):693-702. doi: 10.1016/j.soard.2016.01.001. Epub 2016 Jan 6.

  PMID: 27036669 BACKGROUND

• Madan AK, Harper JL, Tichansky DS. Techniques of laparoscopic gastric bypass: on-line survey of American Society for Bariatric Surgery practicing surgeons. Surg Obes Relat Dis. 2008 Mar-Apr;4(2):166-72; discussion 172-3. doi: 10.1016/j.soard.2007.08.006. Epub 2007 Dec 19.

  PMID: 18069071 BACKGROUND

• Musella M, Milone M, Deitel M, Kular KS, Rutledge R. What a Mini/One Anastomosis Gastric Bypass (MGB/OAGB) Is. Obes Surg. 2016 Jun;26(6):1322-3. doi: 10.1007/s11695-016-2168-2. No abstract available.

  PMID: 27091050 BACKGROUND

• Donini LM, Brunani A, Sirtori A, Savina C, Tempera S, Cuzzolaro M, Spera G, Cimolin V, Precilios H, Raggi A, Capodaglio P; SIO-ISDCA Task Force. Assessing disability in morbidly obese individuals: the Italian Society of Obesity test for obesity-related disabilities. Disabil Rehabil. 2011;33(25-26):2509-18. doi: 10.3109/09638288.2011.575529. Epub 2011 May 4.

  PMID: 21542694 BACKGROUND

MeSH Terms

Conditions

Obesity; Malabsorption Syndromes

Interventions

Gastric Bypass

Condition Hierarchy (Ancestors)

Overweight; Overnutrition; Nutrition Disorders; Nutritional and Metabolic Diseases; Body Weight; Signs and Symptoms; Pathological Conditions, Signs and Symptoms; Intestinal Diseases; Gastrointestinal Diseases; Digestive System Diseases; Metabolic Diseases

Intervention Hierarchy (Ancestors)

Bariatric Surgery; Bariatrics; Obesity Management; Therapeutics; Gastroenterostomy; Anastomosis, Surgical; Surgical Procedures, Operative; Digestive System Surgical Procedures

Study Officials

• Gianfranco Silecchia, MD PhD

  University of Roma La Sapienza

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: MD PhD Prof. G. Silecchia

Study Record Dates

• First Submitted: December 24, 2017
• First Posted: January 26, 2018
• Study Start: March 21, 2018
• Primary Completion: February 19, 2020
• Study Completion: November 19, 2020
• Last Updated: April 28, 2021

Record last verified: 2021-04

Locations

IT (1)