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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

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Columbia University Medical Center
Coordinator of this site? Confirm its status
New YorkUnited StatesUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.