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Protein Digestion After Bariatric Surgery in Older Adults

Study acronym: ProDigBO
StatusCompleted
PhaseNot specified
Started2023-05-15
View on ClinicalTrials.gov ↗

Amendment history

2026-09-01
Study Status, Oversight, Study Design, Contacts/Locations v4
Trial completed
Primary completion confirmed: April 2026 (last estimated November 2026)
Primary completion dateestimated 2026-11-25→confirmed 2026-04-01
Completion dateestimated 2026-11-25→confirmed 2026-04-20
Enrollment targetestimated 72→confirmed 66
Study sitesdetails revised at 2 of 2 sites
2025-02-25
Study Status, Eligibility v3
2025-02-21
Study Identification, Study Status, Oversight, Study Description, Study Design, Arms and Interventions, Eligibility, Contacts/Locations v2
Primary completion date2025-05-01→2026-11-25
Completion date2025-05-01→2026-11-25
Start date2023-05-01→2023-05-15
Enrollment target30→72
Study sites1→2
Study arms3→6
InterventionsDual isotope method (Other)→Dual isotope protein digestibility method (Other)
Eligibility criteria+49 characters
Inclusion Criteria: Signed informed consent Group 1,2,3: Age 65 years or older Group 4,5,6: Age 18 to 65 years Group 1 & ,2,4,5: Previous bariatric surgery for obesity 1 - 10 years ago Group 3,6: No previous weight loss surgery Exclusion Criteria: Curren [...]
Study description+206 characters
The aimPurpose of clinical trial is to investigate the studydigestion of dietary protein in older patients who have undergone Roux-and-Y Bypass (RYGB) or sleeve gastrectomy (SG) surgery. The primary objective is to compare thedietary prevalenceprotein ofdigestion sarcopeniaduring anda nutritionaltest status between adults older than 65 yearsmeal who have previously undergone bariatrica RYGB surgery, SG surgery, or control patients, using a dual stable-isotope method. The secondary objectives are to investigate the relationship between protein intake corrected for protein digestion and patients [...]
Study title-25 characters
The Proportion of Dietary Protein DigestedDigestion asAfter MeasuredBariatric bySurgery thein Dual-isotopeOlder Method.Adults
2024-06-27
Study Status v1
Primary completion date2024-05-01→2025-05-01
Completion date2024-05-01→2025-05-01
2023-10-06
Original filing
The goal of this clinical trial is to investigate protein digestibility after bariatric surgery. Does protein digestibility decrease after Roux-en-Y-Gastric Bypass? Does protein digestibility decrease after Sleeve Gastrectomy surgery? Does protein digestibility effect the ability to meet protein requirements?
Trial Details
NCT Number NCT06076187
Lead Sponsor Universitaire Ziekenhuizen KU Leuven
Conditions Overweight and Obesity, Bariatric Surgery Candidate, Aging, Protein Malabsorption
Enrollment 66 participants
Start Date 2023-05-15
Primary Completion 2026-04-01 (estimated)
Study Completion 2026-04-20 (estimated)
Updated on ClinicalTrials.gov 2026-09-04