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Showing 1–24 of 104 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Post Operative Nutrition Clear all
Completed No phase listed Observational

Gastric Bypass After Previous Anti-reflux Surgery

NCT01041105
View directory record Official record
Conditions
Clinically Severe Obesity, Gastroesophageal Reflux Disease
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 60 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Dec 31, 2009 · Synced Jul 22, 2026, 2:02 PM EDT
Not listed Not applicable Interventional

Effect of Vitamin D Status and Repletion on Postoperative Total Joint Arthroplasty Complications

NCT04229368
View directory record Official record
Conditions
Hip Arthropathy, Knee Arthropathy, Vitamin D Deficiency
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 15, 2023 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Phase 4 Interventional Results available

Ketamine vs Hydromorphone

NCT03001843
View directory record Official record
Conditions
Laparoscopic Gastric Bypass, Obesity, Pain, Postoperative
Interventions
Ketamine, Narcotics, pain scale
Drug · Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 8, 2021 · Synced Jul 22, 2026, 2:02 PM EDT
Completed No phase listed Observational

Mobile APP Utilization for Enhanced Post-Operative Nutritional Recovery

NCT04091165
View directory record Official record
Conditions
GI Cancer, Nutritional Deficiency
Interventions
My Plate Calorie Tracker
Other
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Apr 10, 2023 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Not applicable Interventional Results available

Effect of Single Dose Ketamine and Magnesium on Postoperative Pain in Patients Undergoing Bariatric Surgery

NCT02334059
View directory record Official record
Conditions
Obesity
Interventions
Ketamine, Ketamine plus magnesium, Placebo
Drug · Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 31, 2020 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Not applicable Interventional

Home Parenteral Nutrition (HPN) Families' Mobile Distance Connections to Care Research

NCT01900288
View directory record Official record
Conditions
Short Bowel Syndrome, Malabsorption, Malnutrition
Interventions
HPN Group Clinic Appointments using Mobile Devices (experimental), Mobile Device Access (placebo)
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
13 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 26, 2017 · Synced Jul 22, 2026, 2:02 PM EDT
Not listed Not applicable Interventional

Use of 48 Hour Course of Antibiotics to Prevent Surgical Site Infection in Obese Patients Undergoing Cesarean Delivery

NCT01194115
View directory record Official record
Conditions
Surgical Site Infection in Obese Women Undergoing C-section
Interventions
cephalexin & metronidazole, placebo
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
13 Years and older · Female only
Enrollment
475 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2010
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 10, 2011 · Synced Jul 22, 2026, 2:02 PM EDT
Terminated Not applicable Interventional

Routine Post-Operative Supplemental Nutrition

NCT02297607
View directory record Official record
Conditions
Esophageal Cancer
Interventions
Tube Feeding
Dietary Supplement
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 99 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 26, 2020 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Phase 1 Interventional

Cholestasis Prevention: Efficacy of IV Fish Oil

NCT00512629
View directory record Official record
Conditions
Cholestasis, Parenteral Nutrition
Interventions
Omegaven, Intralipid
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Up to 3 Months
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 2, 2020 · Synced Jul 22, 2026, 2:02 PM EDT
Recruiting Not applicable Interventional

A 90 Day, Phase 3,Open Labeled Exploratory Study of RELiZORB

NCT03530852
View directory record Official record
Conditions
Short Bowel Syndrome, Malabsorption
Interventions
Relizorb
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
2 Years to 18 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
2
States / cities
Los Angeles, California • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Not applicable Interventional

Enhanced Recovery After Surgery in Laparoscopic Sleeve Gastrectomy

NCT03520803
View directory record Official record
Conditions
Obesity
Interventions
Enhanced recovery after surgery protocol
Other
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 8, 2021 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Phase 3 Interventional Results available

Short Bowel Syndrome Research Study for Children Up To 17 Years of Age on Parenteral Nutrition

NCT02682381
View directory record Official record
Conditions
Short Bowel Syndrome
Interventions
Teduglutide 0.05mg/kg, Teduglutide 0.025 mg/kg, Standard of Care
Drug · Other
Lead sponsor
Shire
Industry
Eligibility
0 Years to 17 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
18
States / cities
Los Angeles, California • San Francisco, California • Washington D.C., District of Columbia + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2021 · Synced Jul 22, 2026, 2:02 PM EDT
Not listed Not applicable Interventional

Efficacy of IV Acetaminophen in Acute Post-Operative Pain Control in Laparoscopic Roux-en-Y Gastric Bypass Surgery (LRYGBP) Patients

NCT01460667
View directory record Official record
Conditions
Morbid Obesity
Interventions
IV acetaminophen, IV normal saline
Drug
Lead sponsor
McLaren Regional Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
1
States / cities
Flint, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 26, 2011 · Synced Jul 22, 2026, 2:02 PM EDT
Withdrawn Phase 4 Interventional

SMOFLipid in Patients Who Are Intralipid Intolerant

NCT03054948
View directory record Official record
Conditions
Home Parenteral Nutrition, Short Bowel Syndrome
Interventions
SMOFLipid, Standard therapy
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 21, 2018 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Enteral Glutamine in Reducing Bloodstream Infections in Short Bowel Syndrome Infants

NCT01576003
View directory record Official record
Conditions
Bloodstream Infections, Short Bowel Syndrome, Development, Nutrition, Biological Markers
Interventions
Glutamine, L-alanine
Drug · Dietary Supplement
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
6 Weeks to 12 Months
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
2
States / cities
Ann Arbor, Michigan • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 10, 2020 · Synced Jul 22, 2026, 2:02 PM EDT
Withdrawn Not applicable Interventional

Vitamin D Status in Lower Extremity Joint Replacement Surgery Patients

NCT01858051
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
Cholecalciferol, Placebo
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 29, 2017 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Not applicable Interventional

Assessing Metabolic and Sleep Consequences of Overnight Home Parenteral Nutrition

NCT04743960
View directory record Official record
Conditions
Feeding Patterns, Sleep, Glucose Intolerance, Short Bowel Syndrome
Interventions
Time-of-day of parenteral nutrition provision
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 79 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced Jul 22, 2026, 2:02 PM EDT
Terminated Phase 2 Interventional

Effects of Caloric Restriction Alone Versus Postoperative Caloric Restriction Following Bariatric Surgery on Glucose Metabolism in Patients With Diabetes Mellitus

NCT01083108
View directory record Official record
Conditions
Obesity, Bariatric Surgery, Morbid Obesity, Diabetes Mellitus Type 2, Diet Therapy
Interventions
Roux-en-Y Gastric Bypass, Caloric Restriction
Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 60 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
3
States / cities
Baltimore, Maryland • Bethesda, Maryland • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Not applicable Interventional

Teen and Young Adult Connections for Support From Multidisciplinary Professionals & Peers

NCT02987569
View directory record Official record
Conditions
Short Bowel Syndrome, Malabsorption, Malnutrition
Interventions
mConnect plus mobile connections to multidisciplinary professionals & peers, iPad use plus one mobile connections to multidisciplinary professionals & peers
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
13 Years to 30 Years
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 1, 2020 · Synced Jul 22, 2026, 2:02 PM EDT
Enrolling by invitation No phase listed Observational

Endoscopic Metabolic and Bariatric Therapies

NCT05725967
View directory record Official record
Conditions
Obesity, Obesity, Morbid, Obesity Associated Disorder, Bariatric Surgery Candidate, Fistula, Gastric, Roux-en-y Anastomosis Site, Ulcer, Gastric, Abdominal Pain, Abdominal Obesity, Complication of Surgical Procedure, Complication of Treatment, Complication,Postoperative, Weight Gain, Weight Loss, Leak, Anastomotic, Delayed Gastric Emptying Following Procedure
Interventions
Primary Obesity Endoscopic Procedures, Endoscopic Revision of Bariatric Surgical Procedures, Bariatric Surgery Procedures, Endoscopic Sleeve Gastroplasty, Trans-oral Outlet Reduction, Intragastric Balloon, Primary obesity surgery endoluminal, Restorative obesity surgery endoluminal, Argon Plasma Coagulation, Gastroplasty with Endoscopic Myotomy, Bariatric Endoscopic Antral Myotomy, Pylorus Sparing Antral Myotomy, Aspiration Therapy
Procedure · Device
Lead sponsor
Christopher C. Thompson, MD, MSc
Other
Eligibility
18 Years to 80 Years
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Phase 1 Interventional

Antibiotics, Gastric Bypass, and the Microbiome

NCT05367479
View directory record Official record
Conditions
Obesity, Morbid, Hypertension, Bariatric Surgery Candidate
Interventions
Antibiotic
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years to 70 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 9, 2022 · Synced Jul 22, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Results available

Omegaven® in the Treatment of Parenteral Nutrition (PN) Induced Liver Injury

NCT01845116
View directory record Official record
Conditions
Total Parenteral Nutrition-induced Cholestasis
Interventions
Omegaven®
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
4 Weeks to 18 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2020
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 22, 2022 · Synced Jul 22, 2026, 2:02 PM EDT
Terminated Phase 2 Interventional Results available

Pre to Postoperative Smoking Cessation

NCT02683161
View directory record Official record
Conditions
Cigarette Smoking, Obesity
Interventions
Varenicline, Contingency Management, Behavioral Counseling
Drug · Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced Jul 22, 2026, 2:02 PM EDT
Withdrawn Not applicable Interventional

Incisional Wound Vac in Obese Patients

NCT00789659
View directory record Official record
Conditions
Wound Infection, Postoperative Complication
Interventions
Negative pressure dressing
Other
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years to 64 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Feb 9, 2017 · Synced Jul 22, 2026, 2:02 PM EDT