NCT04350892Completed
Cerebrospinal Fluid Biomarkers in Bariatric Surgery
Changes in Cerebrospinal Fluid Biomarkers After Bariatric Surgery
Source: ClinicalTrials.gov · Last updated 28 Jan 2026
Brief summary (registry, in English)
The goal of this project is to understand why bariatric surgery is such an effective treatment for obesity with a focus on brain mechanisms. Cerebrospinal fluid (CSF) neuropeptide, hormone and protein levels will be measured as a surrogate for changes in brain activity in participants before and after bariatric surgery as compared with participants before and after diet-induced weight loss. The investigators are studying neuropeptides and hormones that are know to be involved with the regulation of appetite and body weight to determine if some of the changes that are expected to occur after diet-induced weight loss do not occur after bariatric surgery. In addition, proteomic analysis will be used to uncover new protein biomarkers that are unique to surgical weight loss. The results of these studies will help explain why bariatric surgery is so effective in achieving long-term weight loss. Understanding how the central nervous system responds to bariatric surgery could help the development of alternative nonsurgical therapies for obesity and its metabolic complications.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 51 (actual)
- First submitted
- 15 Apr 2020
- Start date
- 20 Oct 2020
- Primary completion date
- 29 Dec 2025
- Lead sponsor
- Columbia University
- Diseases
- Obesity
- NCT number
- NCT04350892
What you commit to
- Study type: Interventional
- Participants enrolled: 51
- From 20 Oct 2020 to the primary completion date, 29 Dec 2025
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- No alcohol or drug abuse
- No recent weight change (+/-5%) within prior 6 months
Other illness
- No clinically significant medical conditions
- No diabetes medications, beta-blockers, opiates or glucocorticoids
Lab values
- No medications that may affect body weight or blood glucose
Other
- No use of tobacco
- No pregnancy, breastfeeding, or planning to become pregnant during the study (diet group only)
- No lactose intolerance
Who the study is looking for
- 18-65 years old
- BMI 35-55
Age in the registry: 18 years to 65 years · Sex: All · Accepts healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Columbia University Medical Center Coordinator of this site? Confirm its status | New York | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.