Clinical trials recruiting for Bariatric Surgery

Phase breakdown

Drugs and treatments being studied

Where trials are recruiting (top US states)

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Recruiting trials

• 2024 Tirzepatide-Bariatric Surgery
  NCT06721507 · Phase: Phase 4 · Ages: 18 Years and older · Sex: All (male and female) · 1 location
• Bone Health After Bariatric Surgery in Patients With Type 2 Diabetes
  NCT03455868 · Phase: Not specified · Ages: 18 Years to 60 Years · Sex: All (male and female) · 6 locations
• Bone and Muscle Health Following Sleeve Gastrectomy in Men, Premenopausal and Postmenopausal Women
  NCT06547515 · Phase: Not specified · Ages: 18 Years and older · Sex: All (male and female) · 1 location
• Chinese Obesity and MEtabolic Surgery Database (COMES Database)
  NCT06275061 · Phase: Not specified · Ages: No age limits stated · Sex: All (male and female) · 1 location
• Collagen Supplements and Post-MBS Muscle Mass/Body Image
  NCT07809152 · Phase: Not specified · Ages: 18 Years to 65 Years · Sex: All (male and female) · 1 location
• Comparison of Hormonal Response to a Mixed-Meal Tolerance Test After Laparoscopic Roux-en-Y Gastric Bypass Versus Laparoscopic Sleeve Gastrectomy With Duodenojejunal Bypass in Patients With Super Morbid Obesity
  NCT07747779 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 60 Years · Sex: All (male and female) · 1 location
• Comparison of Nissen-Sleeve and Gastric Bypass for GERD in Obese Patients
  NCT07158008 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 65 Years · Sex: All (male and female) · 1 location
• Comparison of the Occurrence of Postoperative Complications Between Robotic and Laparoscopic Surgery in Revision Bariatric Surgery
  NCT07180316 · Phase: Not specified · Ages: 18 Years to 70 Years · Sex: All (male and female) · 2 locations
• Comparisons of Metabolic Effect of Sleeve Gastrectomy With Duodenojejunal Bypass and Sleeve Gastrectomy (MEDUSA): A Multicenter Randomized Controlled Trial
  NCT05211375 · Phase: Phase 3 · Ages: 18 Years and older · Sex: All (male and female) · 1 location
• Database Concerning Patients Consulting the Obesity Clinic
  NCT04614961 · Phase: Not specified · Ages: 18 Years and older · Sex: All (male and female) · 1 location
• Digital Follow-Up and Nursing Education in Bariatric Surgery Patients
  NCT07457034 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 65 Years · Sex: All (male and female) · 1 location
• Dramatherapy for Psychological and Social Well-Being in Obesity and Bariatric Care
  NCT07685483 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years and older · Sex: All (male and female) · 1 location
• EFFECTS OF SUPERVISED PHYSICAL EXERCISE AFTER BARIATRIC SURGERY ON MUSCLE MASS AND BONE DENSITY (OBEFIT STUDY)
  NCT07324447 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years and older · Sex: All (male and female) · 2 locations
• Effect of Bariatric Surgery on Cardiac Function in Patients With Hypertension
  NCT05166954 · Phase: Not specified · Ages: 17 Years to 70 Years · Sex: All (male and female) · 1 location
• Effect of Transcutaneous Electrical Nerve Stimulation on PODD in Bariatric Surgery Patients
  NCT07569705 · Phase: Not applicable (e.g. observational or device study) · Ages: 20 Years to 60 Years · Sex: All (male and female) · 2 locations
• Effects of Respiratory Muscle Training in Post-bariatric Surgery Patients
  NCT07289958 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 60 Years · Sex: All (male and female) · 1 location
• Endoscopic Conversion of Sleeve Gastrectomy to Single Anastomosis Sleeve-ileal Bypass (SASI) for Gastroesophageal Reflux (GERD), Primary and Secondary Non-responder.
  NCT06757296 · Phase: Not applicable (e.g. observational or device study) · Ages: 21 Years to 65 Years · Sex: All (male and female) · 3 locations
• Establishment of a Classification System and Postoperative Risk Warning Model for Patients Undergoing Bariatric Metabolic Surgery for Severe Obesity
  NCT07093502 · Phase: Not specified · Ages: 18 Years to 50 Years · Sex: All (male and female) · 1 location
• Exercise to Fight Obesity
  NCT06934681 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 65 Years · Sex: All (male and female) · 2 locations
• Fecal Microbiota Transfer to Improve Diabetes Control Post-bariatric Surgery
  NCT06192693 · Phase: Phase 3 · Ages: 18 Years to 65 Years · Sex: All (male and female) · 1 location
• Flow-Controlled Versus Volume-Controlled Ventilation in Bariatric Surgery
  NCT07430111 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 65 Years · Sex: All (male and female) · 1 location
• Gastro-Intestinal Digestion and Physiology After Bariatric Surgery
  NCT07286968 · Phase: Not specified · Ages: 18 Years to 65 Years · Sex: All (male and female) · 1 location
• Identification of Pre-surgical Phenotypic Indicators Predictive of Quality of Life Trajectories in Obese Patients Following Bariatric Surgery
  NCT06951893 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years and older · Sex: All (male and female) · 1 location
• Impact of a Pro-diversity Gut Microbiota Diet After a Bariatric Surgery on Gut Microbiota, Eating Behaviour and Sensory Function
  NCT07268508 · Phase: Not applicable (e.g. observational or device study) · Ages: 25 Years to 65 Years · Sex: All (male and female) · 3 locations
• Implant-based Breast Reconstruction in Post-bariatric Women - a Registry-based National Study
  NCT07059104 · Phase: Not specified · Ages: No age limits stated · Sex: Female · 1 location
• Indocyanine Green Fluorescence Angiography (ICG-FA) in Revisional Bariatric Surgery
  NCT07000539 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years and older · Sex: All (male and female) · 1 location
• Magnetic Compression Anastomosis Procedure for Partial Jejuno-ileal Diversion: Evaluating the Feasibility of a Novel Endoscopic Magnetic Metabolic Interventional Therapy
  NCT07350967 · Phase: Not applicable (e.g. observational or device study) · Ages: 25 Years to 65 Years · Sex: All (male and female) · 1 location
• Mechanistic and Clinical Outcomes of a Surgical Innovation Aimed at Minimizing GERD Associated With VSG (INNOVATE-VSG)
  NCT06783751 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 65 Years · Sex: All (male and female) · 2 locations
• Modified Thoracoabdominal Nerve Plane Block In Laparoscopic Sleeve Gastrectomy
  NCT06515691 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 65 Years · Sex: All (male and female) · 1 location
• Monitoring Nutritional Consequences of Obesity Treatment on Women's Health
  NCT06945016 · Phase: Not specified · Ages: 18 Years to 55 Years · Sex: Female · 1 location
• Ovarian Reserve and Bariatric Surgery
  NCT04583150 · Phase: Not specified · Ages: 18 Years to 37 Years · Sex: Female · 14 locations
• Periodontal Microbiota of Patients Candidates for Bariatric Surgery With Body Mass Index Greater Than 30
  NCT06781229 · Phase: Not specified · Ages: 18 Years and older · Sex: All (male and female) · 1 location
• Physiologic Response to Bariatric Surgery and the Impact of Adjunct Semaglutide in Adolescents
  NCT06575738 · Phase: Phase 1 · Ages: 12 Years to 24 Years · Sex: All (male and female) · 1 location
• Postoperative Nausea, Vomiting and Pain After Bariatric Surgery - a National Registry Study
  NCT07797374 · Phase: Not specified · Ages: 18 Years and older · Sex: All (male and female) · 2 locations
• Radiomics of Intra-abdominal and Subcutaneous Adipose Tissue Predict the Efficacy of Bariatric Surgery (RISABS)
  NCT06169033 · Phase: Not specified · Ages: 16 Years to 70 Years · Sex: All (male and female) · 1 location
• Role of Tranexamic Acid in Reducing Hemorrhagic Events in Bariatric Surgery
  NCT07098780 · Phase: Phase 4 · Ages: 18 Years to 60 Years · Sex: All (male and female) · 1 location
• Sarcopenia Indicators After Bariatric Surgery
  NCT07717333 · Phase: Not specified · Ages: 18 Years to 65 Years · Sex: All (male and female) · 1 location
• Scalp Hair Metabolomics in Severe Obesity
  NCT07368842 · Phase: Not specified · Ages: 21 Years to 70 Years · Sex: All (male and female) · 1 location
• Sleeve Gastrectomy and Roux-en-Y Gastric Bypass in the Treatment of Type 2 Diabetes Mellitus.
  NCT01984762 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 60 Years · Sex: All (male and female) · 1 location
• Study on Supplement of Intravenous Ferric Derisomaltose to Prevent Anemia and Improve the Quality of Life in Obese Patients With Iron Deficiency.
  NCT07236788 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 65 Years · Sex: All (male and female) · 1 location
• Tailored Stapled SADI-S: Initial Report and Preliminary Results
  NCT07289555 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 65 Years · Sex: All (male and female) · 1 location
• Time-Restricted Eating After Bariatric Surgery
  NCT07672821 · Phase: Not applicable (e.g. observational or device study) · Ages: 18 Years to 65 Years · Sex: All (male and female) · 2 locations

Related conditions

Trials recruiting for Bariatric Surgery often also study these conditions. Each links to its own recruiting-trial list.

Common questions

Are these trials free to join?

Study-related care in a clinical trial is usually provided at no cost to participants, and some trials reimburse travel. Costs vary by study - the trial team will explain what is and is not covered. Confirm this directly with them.

How do I know if I am eligible for Bariatric Surgery trials?

Each trial lists inclusion and exclusion criteria. The screener above checks stated age and sex only. The full eligibility (your medical history, current medications, test results) is assessed by the study team. Open any trial to read its criteria, then contact the site.

Is this list complete?

No. For the full list, search ClinicalTrials.gov.