Observational study on bariatric surgery outcomes
Official title: The Bialystok Bariatric Surgery Study
Run by Medical University of Bialystok · NCT04634591 · Data updated 2026-11-12
This study looks at how bariatric surgery affects weight loss and related health issues like diabetes in patients over two years after their surgery.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 1000 (estimated) |
| Sponsor | Medical University of Bialystok Academic / other |
| Locations | 1 site (Bialystok, Podlaskie Voivodeship) |
| Status | Recruiting |
| Started | September 10, 2015 |
| Main results expected | December 31, 2026 |
| Study ends | December 31, 2026 |
| Registry record updated | April 14, 2026 |
| Trial ID | NCT04634591 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are individuals with a BMI of 40 or higher, or a BMI of 35 or higher with obesity-related co-morbidities.
✕Probably not a fit
Patients with substance abuse issues, uncontrolled psychiatric illnesses, or advanced-stage cancer may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
The Bialystok Bariatric Surgery Study is a prospective observational cohort study focusing on patients undergoing bariatric surgery at the Medical University of Bialystok. Participants will undergo a series of baseline tests one month prior to surgery, with follow-up assessments at one, three, six, twelve, and twenty-four months post-surgery. The study aims to evaluate the effects of bariatric surgery on obesity and related conditions such as diabetes and metabolic syndrome.
Why it matters
Potential benefit: If successful, this study could provide valuable insights into the long-term benefits of bariatric surgery for managing obesity and its associated health conditions.
How similar studies have gone: Other studies have shown positive outcomes with bariatric surgery for obesity and related conditions, indicating that this approach is well-supported in the literature.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * BMI ≥ 40 kg/m2, or BMI ≥ 35 and at least one or more obesity-related co-morbidities such as type 2 diabetes (T2D), hypertension, sleep apnea and other respiratory disorders, non-alcoholic fatty liver disease, osteoarthritis, lipid abnormalities, gastrointestinal disorders, or heart disease. * Inability to achieve a healthy weight loss sustained for a period of time with prior weight loss efforts * Patient consent for participation in research project * Willingness in participation in follow-up visits Exclusion Criteria: * substance abuse, * uncontrolled psychiatric illness * expected lack of compliance * advanced-stage cancer Non-obese control group: * BMI \<30
Where it's running
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Clinical Research Centre, Medical University of Bialystok
Bialystok, Podlaskie Voivodeship, Poland Recruiting
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.