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Recruiting NCT04634591

NCT04634591 The Bialystok Bariatric Surgery Study

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Clinical Trial Summary
NCT ID NCT04634591
Status Recruiting
Phase
Sponsor Medical University of Bialystok
Condition Obesity
Study Type OBSERVATIONAL
Enrollment 1,000 participants
Start Date 2015-09-10
Primary Completion 2026-12-31

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type OBSERVATIONAL
Interventions
Bariatric surgery

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.

This trial targets 1,000 participants in total. It began in 2015-09-10 with a primary completion date of 2026-12-31.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The Bialystok Bariatric Surgery Study (BBSS) is a prospective observational cohort study of patients undergoing bariatric surgery at the First Clinical Department of General and Endocrine Surgery at the Medical University of Bialystok. The BBSS consists of a battery of baseline tests established one month prior to the surgery and repeated at one, three, six, twelve and twenty four-month follow-up clinical visits.

Eligibility 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

Frequently Asked Questions

Who can join the NCT04634591 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, studying Obesity. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT04634591 currently recruiting?

Yes, NCT04634591 is actively recruiting participants. Visit ClinicalTrials.gov or contact Medical University of Bialystok to inquire about joining.

Where is the NCT04634591 trial being conducted?

This trial is being conducted at Bialystok, Poland.

Who is sponsoring the NCT04634591 clinical trial?

NCT04634591 is sponsored by Medical University of Bialystok. The trial plans to enroll 1,000 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology