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99 studies found for:    Open Studies | "gastric bypass"
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21 Recruiting Impact of Body Weight and Weight Loss on Drug Bioavailability, Cardiovascular Risk Factors and Metabolic Biomarkers
Condition: Obesity
Interventions: Procedure: Gastric bypass;   Behavioral: Very low calorie diet
22 Recruiting Changes in Oral Contraceptive Hormones After Gastric Bypass Surgery
Conditions: Bariatric Surgery Candidate;   Contraception
Intervention: Drug: ethinyl estradiol-levonorgestrel
23 Recruiting Obesity Surgery and Kidney Transplant for Patients With Obesity and Renal Failure
Conditions: Severe Obesity;   Renal Failure
Interventions: Procedure: Gastric Bypass;   Other: Weight Loss Program
24 Recruiting Investigation of the Optimal Calcium Supplement Following Roux-en-Y Gastric Bypass
Conditions: Roux-en-Y Gastric Bypass;   Hyperparathyroidism, Secondary
Interventions: Dietary Supplement: Calcium Carbonate;   Dietary Supplement: Calcium Citrate;   Dietary Supplement: Placebo;   Procedure: Roux-en-Y gastric bypass
25 Recruiting Weight Loss-Independent Metabolic Effects of Roux-En-Y Gastric Bypass in Diabetes
Conditions: Obesity;   Type 2 Diabetes
Interventions: Procedure: Roux-en-Y gastric bypass surgery;   Behavioral: Low-calorie diet;   Procedure: BPD;   Procedure: SG;   Procedure: LAGB
26 Recruiting Impact of Weight Loss After a Bypass Surgery on Renal Hemodynamic Under Stress Conditions
Conditions: Obesity;   Bariatric Surgery;   Blood Pressure
Intervention: Procedure: bariatric surgery (gastric bypass)
27 Recruiting Gut Microbiota Post Roux-en-Y Gastric Bypass Surgery
Condition: Obesity
Intervention: Other: Meal challenge
28 Recruiting Carbohydrates and Gut Hormones After Gastric Bypass Surgery
Condition: Overweight
Interventions: Other: Glucose + Fructose;   Other: Sucrose;   Other: Isomaltulose;   Other: Sucrose + Acarbose
29 Recruiting Changes in Body Composition Following Bariatric Surgery
Condition: Obesity
Intervention: Procedure: Bariatric Surgery
30 Recruiting Bariatric Surgery for the Treatment of Type 2 Diabetes - Clinical Effects and Underlying Mechanisms
Conditions: Type 2 Diabetes Mellitus;   Obesity
Intervention: Procedure: Laparoscopic Gastric Bypass
31 Recruiting The Effect of Different Macronutrients on Gastrointestinal Hormone Secretion After Gastric Bypass Operation
Conditions: Bariatric Surgery (Gastric Bypass);   Overweight
Interventions: Other: Mealtest: High protein 200 kcal 200 ml liquid meal consumed during 10 minutes;   Other: Mealtest: High fat 200 kcal 200 ml liquid meal consumed during 10 minutes;   Other: Mealtest: High carbohydrate 200 kcal 200 ml liquid meal consumed during 10 minutes;   Other: Mealtest: High fat 200 kcal 200 ml liquid meal with pancreatic lipase inhibitor consumed during 10 minutes
32 Recruiting Prospective Study of Hormone Levels After Bariatric Surgery
Condition: Obesity
Interventions: Procedure: Gastric bypass;   Procedure: Gastric banding
33 Recruiting Glucagon-like Peptide 1, Glucose Metabolism and Gastric Bypass
Condition: Post-bariatric Surgery
Interventions: Drug: exendin-(9-39);   Drug: exendin -(9-39)
34 Recruiting Bupivacaine Liposomal Injection (Exparel) for Postsurgical Analgesia in Patients Undergoing Laparoscopic Gastric Bypass
Condition: Pain, Postoperative
Interventions: Drug: Exparel;   Drug: Bupivacain;   Drug: Saline
35 Recruiting Study on the Use of Low Dose Ketamine After Gastric Bypass and Gastrectomy
Conditions: Pain;   Postoperative Depression
Interventions: Drug: Ketamine;   Other: Placebo Comparator
36 Recruiting MGB/OAGB and LSG Effects on Lower Esophageal Sphincter (LES) Function
Conditions: Morbid Obesity;   Gastroesophageal Reflux;   Bariatric Surgery Candidate
Interventions: Procedure: MGB/OAGB;   Procedure: LSG
37 Recruiting Muscle Assessment in Women Who Have Undergone Roux-en-Y Gastric Bypass Surgery
Condition: Muscle Function, Handgrip Strength Test
Intervention: Other: Assess muscle function
38 Recruiting 4XL Study - Obesity Surgery in Adolescence
Condition: Obesity, Morbid
Interventions: Procedure: Laparoscopic gastric bypass;   Behavioral: Standard conservative treatment
39 Recruiting Randomized Clinical Trial; Medical vs Bariatric Surgery for Adolescents (13-16 y) With Severe Obesity
Conditions: Obesity;   Diabetes;   Hypertension;   Steatohepatitis;   Inflammation
Interventions: Procedure: Laparoscopic Roux-en-Y gastric bypass;   Procedure: Intense conservative treatment
40 Recruiting Role of Neural and Hormonal Regulation Factors on Insulin Secretion After Gastric Bypass Surgery
Conditions: Post Bariatricsurgery;   Hypoglycemia
Interventions: Drug: Exendin-(9-39);   Drug: Atropine;   Drug: GLP-1 and GIP

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Study has passed its completion date and status has not been verified in more than two years.