Exploring the role of vitamin status and epigenetics in severe obesity

Influence of Vitamins Status on Severe Obesity Related Complications

Observational University of Lorraine · NCT02663388

This study is trying to see how vitamin levels and genetic factors affect health problems in people with severe obesity who are considering weight loss surgery.

Quick facts

Study typeObservational
Enrollment20000 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorUniversity of Lorraine Academic / other
Locations1 site (Vandoeuvre Les Nancy)
Trial IDNCT02663388 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate how vitamin levels and epigenetic factors contribute to complications associated with severe obesity. It focuses on patients who are candidates for bariatric surgery, including procedures like gastric bypass, sleeve gastrectomy, and gastric banding. By collecting biological tissue samples, the study seeks to understand the underlying mechanisms that may influence obesity-related health issues such as diabetes and non-alcoholic fatty liver disease.

Who should consider this trial

Good fit: Ideal candidates are individuals with a BMI greater than 35 kg/m2 who are indicated for bariatric surgery.

Not a fit: Patients who are unable to provide informed consent or refuse to participate will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of severe obesity and its complications.

How similar studies have performed: While the specific approach of this study may be novel, other studies have explored the relationship between epigenetics and obesity, showing promising results.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* indication for bariatric surgery with BMI \> 35 kg/m2

Exclusion Criteria:

* unable to receive clear information
* refusal to sign the consent form

Where this trial is running

Vandoeuvre Les Nancy

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions ObesityDiabetesMetabolic DiseasesNon-alcoholic Fatty Liver Disease
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.