| Not Yet Recruiting | Feasibility and Health-economic Evaluation of Remote Clinical Monitoring Enabling Same-day Discharge After Bar NCT07483775 | Jessa Hospital | N/A |
| Recruiting | Gastro-Intestinal Digestion and Physiology After Bariatric Surgery NCT07286968 | Universitaire Ziekenhuizen KU Leuven | — |
| Recruiting | IV Iron-induced Hypophosphatemia After RYGB NCT06350955 | Lucie Favre | Phase 4 |
| Completed | The Effect of Physical Activity in Individuals With Post-bariatric Hypoglycemia NCT05560789 | Joslin Diabetes Center | N/A |
| Active Not Recruiting | A Registry of Laparoscopic Bariatric Surgery Using Stapling Devices: Observation of Safety and Clinical Effica NCT04808206 | Duomed | — |
| Completed | Forecasting and Preventing Post-Bariatric Hypoglycaemia WP 3 NCT05216926 | Lia Bally | N/A |
| Completed | Forecasting and Preventing Post-Bariatric Hypoglycaemia WP 1 NCT05212207 | Lia Bally | — |
| Completed | Forecasting and Preventing Post-Bariatric Hypoglycaemia WP 2 NCT05250271 | Lia Bally | N/A |
| Withdrawn | A Post-market Observational Study With the easyEndoTM Universal Linear Cutting Stapler in Standard Laparoscopi NCT04543526 | Duomed | — |
| Completed | Evaluation of the Neuro-endocrine Response to Post-prandial Hyperinsulinaemic Hypoglycaemia. NCT04334161 | Lia Bally | — |
| Active Not Recruiting | A Post-market, Observational Registry With the easyEndoTM Universal Linear Cutting Stapler in Laparoscopic Bar NCT04422236 | Duomed | — |
| Completed | Effect of Postprandial Hyperinsulinaemic Hypoglycaemia on Driving Performance. NCT04330196 | Lia Bally | N/A |
| Unknown | Bariatric Surgery and Male Reproductive Function NCT04237311 | The Third Xiangya Hospital of Central South University | — |
| Unknown | Continuous Glucose Monitoring (CGM) After Surgical Variations of the Roux-en-y Gastric Bypass NCT04172116 | Medical University of Vienna | — |
| Completed | Assessing the Safety and Performance of the easyEndoTM Universal Linear Cutting Stapler in Laparoscopic Gastri NCT03968757 | Duomed | — |
| Unknown | Impact of Bariatric Surgery on Pharmacokinetic Study of Simvastatin and Carvedilol NCT04049786 | Natalia Valadares de Moraes | Phase 4 |
| Completed | Photographic Food Recognition and Meal Size Estimation Before and After Roux-en-Y Gastric Bypass NCT04600596 | Marco Bueter | — |
| Completed | Microstructure of Ingestive Behavior and Body Weight Loss After Roux-en-Y Gastric Bypass NCT04933305 | Marco Bueter | — |
| Completed | Bariatric Procedures and Changes Gastric Passage NCT04972357 | Rijnstate Hospital | — |
| Unknown | Randomized Trial Comparing Gastric Bypass With and Without Cholecystectomy NCT04324515 | University of Geneva, Switzerland | N/A |
| Completed | Skeletal Health in Bariatric Surgery Patients NCT03331536 | University of Alabama at Birmingham | — |
| Completed | Meal Glycaemic Index and Exercise After Gastric Bypass NCT03478098 | Kirstine Nyvold Bojsen-Moeller | N/A |
| Enrolling By Invitation | Physiologic and Functional Adaptations of Insulin Sensitive Tissues NCT03407833 | Vanderbilt University Medical Center | — |
| Completed | Microstructural Analysis of Ingestive Behavior After Roux-en-Y Gastric Bypass - Pilot NCT03747445 | Marco Bueter | — |
| Completed | Defining Benchmarks in Bariatric Surgery NCT03440138 | Marco Bueter | — |
| Unknown | Does Participation in a Pre-Operative Physical Activity Program Improve Patient Outcomes and Quality of Life? NCT03049696 | University of Manitoba | N/A |
| Completed | Investigation of the Optimal Calcium Supplement Following Roux-en-Y Gastric Bypass NCT02830789 | University of Aarhus | N/A |
| Completed | Comparing the Benefits and Harms of Three Types of Weight Loss Surgery -- The PCORnet® Bariatric Study NCT02741674 | Kaiser Permanente | — |
| Completed | A Comparison Between Short vs. Long Biliopancreatic Limb Gastric Bypass NCT04609449 | CARLOS ZERRWECK LOPEZ | N/A |
| Completed | The Predictive Role of Preoperative Pentraxin-3 (PTX3) in Metabolic and Inflammatory Outcomes After Roux-en-Y NCT07241741 | Istanbul University | — |
| Completed | Iron Absorption Trial NCT02228902 | Rijnstate Hospital | Phase 4 |
| Unknown | Changes in Food Preference and Food Cue Responsivity After Bariatric Surgery NCT02068001 | Wageningen University | — |
| Completed | To Define the Role of GLP-1 for Improving Glucose Homeostasis in Humans Following Gastric Bypass Surgery NCT02204813 | Washington University School of Medicine | Phase 1 |
| Completed | A Comparison of Sustained and Extended Release Bupropion Following Bariatric Surgery NCT02173886 | North Dakota State University | Phase 4 |
| Completed | A Dose-response of the Effects of Exendin-9,39 on GI Symptoms and Food Intake NCT02128581 | Mayo Clinic | Phase 1 |
| Completed | Venlafaxine PK Following Bariatric Surgery NCT02005107 | North Dakota State University | Phase 4 |
| Completed | Study to Examine the Effect of Gastric Bypass Surgery on Venlafaxine ER Blood Levels NCT01867255 | Mayo Clinic | Phase 1 |
| Completed | Safety and Efficacy Study of Duet TRS NCT00950872 | Medtronic - MITG | N/A |