NCT01249326

Brief Summary

The main objective of the study is to evaluate the protein requirement associated with postoperative weight loss caused by by-pass (shunt which leads to a certain degree of malabsorption) or sleeve gastrectomy (more technically conservative with less malabsorption), through the study of nitrogen balance. The benefit of protein supply easily absorbed and with high essential amino acids content (proteins "fast" soluble milk) on protein metabolism and muscle function will also be studied. Endotoxemia and intestinal flora variations were measured before and after bariatric surgery.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
25

participants targeted

Target at below P25 for not_applicable obesity

Timeline
Completed

Started Dec 2010

Longer than P75 for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

November 15, 2010

Completed
14 days until next milestone

First Posted

Study publicly available on registry

November 29, 2010

Completed
2 days until next milestone

Study Start

First participant enrolled

December 1, 2010

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 19, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 19, 2015

Completed
Last Updated

November 13, 2018

Status Verified

November 1, 2018

Enrollment Period

4.3 years

First QC Date

November 15, 2010

Last Update Submit

November 9, 2018

Conditions

Keywords

Morbid obesity,Bariatric surgery, by-pass, sleeve gastrectomy,Nitrogen balance,Protein requirement,Weight lossMuscle wasting, muscle disability

Outcome Measures

Primary Outcomes (1)

  • to measure the nitrogen balance and its variation during weight loss

    before, after 3 months and 1 year after the operation

Secondary Outcomes (9)

  • Protein metabolism of body and muscle will be assessed

    before and 3 months after surgery

  • - Body composition will be assessed using deuterated water (2H2O) ingested and by BIA (Bioelectrical Impedance Analysis )

    before, after 3 months and 1 year after surgery

  • Changes of endotoxemia will be assessed by measuring blood levels of endotoxin, their carriers, inflammatory cytokines, and protein transfer fasting and after a high fat breakfast test

    before and 3 months after surgery

  • The voluntary muscular force and muscular weariness will be assessed in Clermont-Ferrand and Lyon by Dynatrac measurement apparatus

    before, after 3 months and 1 year after the operation

  • Muscle mass will be estimated by urinary creatinine measurements

    before, after 3 months and 1 year after the operation).

  • +4 more secondary outcomes

Interventions

This is a prospective longitudinal study of the effect of bariatric surgery on protein requirements and protein metabolism, and protein supplementation interest, appropriate to the digestive tract changes, for the mass and muscle function

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • \- Males and females.
  • Age between 18 to 60 years.
  • Body mass index: BMI\> 40 kg/m2,
  • Biological Review considered satisfactory by the investigator based on the topics covered
  • Serology HIV ( Human Immunodeficiency Virus )and HCV (Hepatitis C Virus ) negative.
  • Subject giving his written informed consent
  • Affiliated to National Health Insurance

You may not qualify if:

  • Subject under 18 or over 60 years.
  • Balance Organic considered abnormal by the investigator.
  • Serology HIV or HCV positive.
  • Pregnant or lactating.
  • For women of childbearing age: β-HCG assay positive and not having reliable contraceptives (oral contraceptive, IUD (Intrauterine Device), implant or hormone patch, abstinence).
  • Medical or surgical history (judged by investigator to be incompatible with the study).
  • Subject with unstable psychiatric condition
  • Blood donation in the two months preceding the study.
  • Heavy alcohol consumption (\> 2 to 3 glasses per day depending on sex) or presence of an addiction.
  • Tobacco significant (\> 5 cigarettes / day or equivalent in cigars or pipe tobacco).
  • Subjects with an allergy or intolerance to dairy products.
  • Intense sporting activity (\> 5 hours / week).
  • No one under guardianship or not subject to social security.
  • Subjects deprived of their liberty by judicial or administrative decision.
  • Refusal to sign the information sheet and written consent for participation
  • +7 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

CHU Clermont-Ferrand

Clermont-Ferrand, 63003, France

Location

Related Publications (1)

  • Guillet C, Masgrau A, Mishellany-Dutour A, Blot A, Caille A, Lyon N, Pereira B, Slim K, Robert M, Disse E, Feugier N, Le Ruyet P, Louvet C, Miolanne M, Farigon N, Laville M, Boirie Y. Bariatric surgery affects obesity-related protein requirements. Clin Nutr ESPEN. 2020 Dec;40:392-400. doi: 10.1016/j.clnesp.2020.06.007. Epub 2020 Oct 1.

MeSH Terms

Conditions

ObesityObesity, MorbidWeight LossMuscular Atrophy

Interventions

Bariatric Surgery

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBody Weight ChangesNeuromuscular ManifestationsNeurologic ManifestationsNervous System DiseasesAtrophyPathological Conditions, Anatomical

Intervention Hierarchy (Ancestors)

BariatricsObesity ManagementTherapeuticsSurgical Procedures, Operative

Study Officials

  • Yves BOIRIE

    University Hospital, Clermont-Ferrand

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 15, 2010

First Posted

November 29, 2010

Study Start

December 1, 2010

Primary Completion

March 19, 2015

Study Completion

March 19, 2015

Last Updated

November 13, 2018

Record last verified: 2018-11

Locations