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COLOMBES Project:Constitution of a Population-based Cohort of Obese Subjects With Longitudinal Long-term Follow-up (COLOMBES)

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
Assistance Publique - Hôpitaux de Paris Identifier:
First received: February 29, 2008
Last updated: December 31, 2013
Last verified: December 2013
The objective of the project is the constitution of a population-based cohort of 500 persons with severe or morbid obesity (BMI over 35 kg/m2) with annual follow-up for 10 years. It aims to improve the physiopathological, epidemiological and prognostic knowledge of obesity and its consequences. Clinical data, biological material, exams and questionaires will be collected and stored, allowing the realisation of research works, initiated by research teams from our hospital or from other settings.


Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Constitution of a Population-based Cohort of Obese Subjects With Longitudinal Long-term Follow-up.

Further study details as provided by Assistance Publique - Hôpitaux de Paris:

Primary Outcome Measures:
  • Rate of follow-up at annual visit [ Time Frame: annual ]

Secondary Outcome Measures:
  • Assessment of knee arthrosis (pain and radiological exam), at inclusion and after loss-weight (comparison after one and two years of follow-up of patients that did or did not undergo bariatric surgery). [ Time Frame: one and two years of follow-up ]

Biospecimen Retention:   Samples With DNA
plasma, serum, DNA, RNA, cell blood, for persons undergoing bariatric surgery (specific consentment): samples of liver and adipocytes

Enrollment: 311
Study Start Date: March 2005
Estimated Study Completion Date: June 2018
Estimated Primary Completion Date: June 2018 (Final data collection date for primary outcome measure)
Obese persons cohorte
constitution of a prospective data collection (biological, clinical, paraclinical and questionnaires) in morbidly obese persons.

Detailed Description:

The objective of this observational study is the follow-up of a cohort of 500 adult persons with morbid obesity (BMI>35 kg/m2).

Clinical and paraclinical data, and biological samples (plasma, serum, DNA, RNA, cell blood, for persons undergoing bariatric surgery (specific consent): samples of liver and adipocytes) will be collected and stored during the follow-up visits. These visits take place at inclusion, at 6 months, twelve months and every year for ten years. The collection of parental DNA will be proposed when feasable for genetic studies.

Persons will be recruited for four years, with an expected number of 350 persons included, in the clinical research unit of Louis MOURIER university hospital (AP-HP).

Each person included will participate in the study for ten years. When included, patients agree to come every year to follow-up visits. They are informed that data collected will be used only for research on obesity and its health consequences.


Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Morbidly obese subjects

Inclusion Criteria:

  • BMI>35

Exclusion Criteria:

  • previous bariatric surgery
  • pregnancy
  Contacts and Locations
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Please refer to this study by its identifier: NCT00632671

Louis Mourier hospital (AP-HP)
Colombes, France, 92700
Sponsors and Collaborators
Assistance Publique - Hôpitaux de Paris
Principal Investigator: Simon Msika, MD, PhD Louis Mourier University Hospital (AP-HP)
  More Information

Responsible Party: Assistance Publique - Hôpitaux de Paris Identifier: NCT00632671     History of Changes
Other Study ID Numbers: P040807
AOM04013 ( Other Identifier: french ministry )
Study First Received: February 29, 2008
Last Updated: December 31, 2013

Keywords provided by Assistance Publique - Hôpitaux de Paris:
Obesity cohort processed this record on May 23, 2017