NCT02939664

Brief Summary

This study try to identify differences in length of operation, weight loss and complications, between two different bariatric surgical techniques, the laparoscopic Roux-en-Y gastric bypass and the laparoscopic Roux-en-Y banded gastric bypass. The study will be conducted in a Spanish public health system hospital. The patients of the trial will have the preoperative studies, hospital treatment during the admission, postoperative treatment and follow up as any other patient included in the hospital bariatric surgery program. The study cases will have placed around the gastric pouch a band of polypropylene mesh, and will be randomly choose between the participants. Patients will be randomized in a 5/3 (study/control) ratio.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
92mo left

Started Apr 2016

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress57%
Apr 2016Jan 2034

Study Start

First participant enrolled

April 1, 2016

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

September 28, 2016

Completed
22 days until next milestone

First Posted

Study publicly available on registry

October 20, 2016

Completed
17.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2034

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2034

Last Updated

April 21, 2020

Status Verified

April 1, 2020

Enrollment Period

17.8 years

First QC Date

September 28, 2016

Last Update Submit

April 18, 2020

Conditions

Keywords

banded gastric bypassweight loss

Outcome Measures

Primary Outcomes (2)

  • Change from operation date, in excess weight loss at 10 years

    % of excess weight loss at 10 years

    10 years

  • Postoperative complications at 10 years

    Number of participants with adverse events (surgical complications) and/or abnormal Laboratory values that are related to treatment

    10 years

Secondary Outcomes (6)

  • Excess weight loss at 5 years

    5 years

  • Total Hospital cost at 3 months

    up to 3 months

  • Postoperative complications 1 year

    1 year

  • Postoperative complications 2 years

    2 years

  • Postoperative complications 3 years

    3 years

  • +1 more secondary outcomes

Study Arms (2)

Banded Gastric Bypass

ACTIVE COMPARATOR

The patient will have done a laparoscopic Roux-en-Y banded (with polypropylene mesh) gastric bypass at the time of the surgical procedure.

Device: Banded (with polypropylene mesh) gastric bypass

Gastric Bypass.

ACTIVE COMPARATOR

The patient will have done a Laparoscopic Roux-en-Y gastric bypass at the time of the surgical procedure

Procedure: Gastric bypass

Interventions

The patient will be submitted to a Laparoscopic Roux-en-Y banded gastric bypass at the time of the operation, with a polypropylene mesh around the gastric pouch.

Also known as: Laparoscopic banded gastric bypass, Laparoscopic Roux-en-Y banded gastric bypass, Laparoscopic Banded Roux-en-Y gastric bypass
Banded Gastric Bypass

In this case a simplified conventional gastric bypass will be performed

Also known as: Laparoscopic Gastric bypass
Gastric Bypass.

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • criteria for bariatric surgery published in 1991 for the National Institutes of Health of the USA.
  • Body mass index (BMI)\> 40 and \<55 kg/m2
  • Obesity for more than 5 years of evolution
  • Fail in medical supervised weight loss program
  • patient knowing of the mechanism of weight loss after surgery and agreement to collaborate with medical recommendations, diet, medical treatment, as well as the visit established in the follow up program
  • patient accepting that surgery objective is not to achieve the ideal weight.
  • signed specific informed consent
  • women will agree in avoid gestation during one year after surgery

You may not qualify if:

  • Patients unable to sign the informed consent form because of a mental disorder.
  • endocrine diseases causing obesity
  • unstable mental disorder, evaluated for a psychiatry MD.
  • high anesthetic risk making surgery too risky.
  • Malignant neoplasm
  • Inflammatory bowel disease
  • Severe liver disease
  • Digestive disease that makes unwise the bypass technique (mainly gastric illness that may required upper endoscopy for control)
  • abdominal wall hernias
  • Symptomatic biliary pathology that requires cholechistectomy at the same time of the bariatric surgery
  • any known pathology that requieres or recomend simultaneous surgery at the time of the bariatric surgery.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Servicio de Cirugía General. Hospital Universitario Puerta de Hierro Majadahonda

Majadahonda, Madrid, 28222, Spain

Location

Related Publications (8)

  • Arceo-Olaiz R, Espana-Gomez MN, Montalvo-Hernandez J, Velazquez-Fernandez D, Pantoja JP, Herrera MF. Maximal weight loss after banded and unbanded laparoscopic Roux-en-Y gastric bypass: a randomized controlled trial. Surg Obes Relat Dis. 2008 Jul-Aug;4(4):507-11. doi: 10.1016/j.soard.2007.11.006. Epub 2008 Jan 28.

    PMID: 18226982BACKGROUND
  • Bessler M, Daud A, Kim T, DiGiorgi M. Prospective randomized trial of banded versus nonbanded gastric bypass for the super obese: early results. Surg Obes Relat Dis. 2007 Jul-Aug;3(4):480-4; discussion 484-5. doi: 10.1016/j.soard.2007.01.010. Epub 2007 Jun 4.

    PMID: 17544335BACKGROUND
  • Buchwald H, Buchwald JN, McGlennon TW. Systematic review and meta-analysis of medium-term outcomes after banded Roux-en-Y gastric bypass. Obes Surg. 2014 Sep;24(9):1536-51. doi: 10.1007/s11695-014-1311-1.

    PMID: 25001288BACKGROUND
  • Capella JF, Capella RF. An assessment of vertical banded gastroplasty-Roux-en-Y gastric bypass for the treatment of morbid obesity. Am J Surg. 2002 Feb;183(2):117-23. doi: 10.1016/s0002-9610(01)00871-6.

    PMID: 11918873BACKGROUND
  • Capella JF, Capella RF. The weight reduction operation of choice: vertical banded gastroplasty or gastric bypass? Am J Surg. 1996 Jan;171(1):74-9. doi: 10.1016/S0002-9610(99)80077-4.

    PMID: 8554155BACKGROUND
  • Mahawar KK, Parikh C, Carr WR, Jennings N, Balupuri S, Small PK. Primary banded Roux-en-Y gastric bypass: a systematic review. Obes Surg. 2014 Oct;24(10):1771-92. doi: 10.1007/s11695-014-1346-3.

    PMID: 24968745BACKGROUND
  • Rasera I Jr, Coelho TH, Ravelli MN, Oliveira MR, Leite CV, Naresse LE, Henry MA. A Comparative, Prospective and Randomized Evaluation of Roux-en-Y Gastric Bypass With and Without the Silastic Ring: A 2-Year Follow Up Preliminary Report on Weight Loss and Quality of Life. Obes Surg. 2016 Apr;26(4):762-8. doi: 10.1007/s11695-015-1851-z.

    PMID: 26314349BACKGROUND
  • Zarate X, Arceo-Olaiz R, Montalvo Hernandez J, Garcia-Garcia E, Pablo Pantoja J, Herrera MF. Long-term results of a randomized trial comparing banded versus standard laparoscopic Roux-en-Y gastric bypass. Surg Obes Relat Dis. 2013 May-Jun;9(3):395-7. doi: 10.1016/j.soard.2012.09.009. Epub 2012 Oct 3.

    PMID: 23260801BACKGROUND

MeSH Terms

Conditions

Obesity, MorbidWeight LossPostoperative Complications

Interventions

Gastric Bypass

Condition Hierarchy (Ancestors)

ObesityOverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBody Weight ChangesPathologic Processes

Intervention Hierarchy (Ancestors)

Bariatric SurgeryBariatricsObesity ManagementTherapeuticsGastroenterostomyAnastomosis, SurgicalSurgical Procedures, OperativeDigestive System Surgical Procedures

Study Officials

  • Miguel J Garcia-Oria, MD PhD FACS

    General Surgery Department. Hospital Universitario Puerta de Hierro

    STUDY CHAIR
  • Miguel J Garcia-Oria, MD PhD

    Servicio de Cirugía General. Hospital Universitario Puerta de Hierro Majadahonda

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, PhD

Study Record Dates

First Submitted

September 28, 2016

First Posted

October 20, 2016

Study Start

April 1, 2016

Primary Completion (Estimated)

January 1, 2034

Study Completion (Estimated)

January 1, 2034

Last Updated

April 21, 2020

Record last verified: 2020-04

Data Sharing

IPD Sharing
Will not share

We will publish the results of the study in a surgical journal

Locations