Comparing bougie sizes in laparoscopic sleeve gastrectomy for obesity
Official title: Multicentric Randomized Prospective Study Assessing the Impact of the Bougie Calibration Size During Laparoscopic Sleeve Gastrectomy on the Rate of Postoperative Staple-line Leak Rate
Run by Assistance Publique - Hôpitaux de Paris · NCT02937649 · Data updated 2026-11-12
This study is testing whether using different sizes of a tool called a bougie during weight loss surgery can help prevent leaks in the stomach for people with severe obesity.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 70 Years |
| Sex | All |
| Enrollment | 1658 (estimated) |
| Sponsor | Assistance Publique - Hôpitaux de Paris Academic / other |
| Locations | 12 sites (Boulogne-Billancourt and 11 other locations) |
| Status | Recruiting |
| Started | October 8, 2020 |
| Main results expected | June 8, 2025 |
| Study ends | September 8, 2027 |
| Registry record updated | April 6, 2025 |
| Trial ID | NCT02937649 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 18 to 70 with a BMI over 40 or over 35 with related comorbidities, seeking primary bariatric surgery.
✕Probably not a fit
Patients with previous upper abdominal surgeries, significant comorbidities, or specific esophageal disorders may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial aims to evaluate the impact of different bougie sizes on the rate of staple-line leaks following laparoscopic sleeve gastrectomy (LSG) in patients with morbid obesity. It is a prospective randomized trial that compares the outcomes of using standard bougie calibers (34, 36, or 38 Fr) versus a larger 48-Fr bougie. The hypothesis is that a larger bougie diameter may reduce the risk of gastric leaks without compromising long-term weight loss results. The study will involve patients who meet specific eligibility criteria and will be conducted at multiple hospital locations.
Why it matters
Potential benefit: If successful, this study could lead to reduced complications and improved outcomes for patients undergoing bariatric surgery.
How similar studies have gone: Other studies have explored bougie sizes in bariatric surgery, but this specific comparison of standard versus larger bougie sizes is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients between 18 and 70 years * Sleeve gastrectomy as a primary bariatric procedure * Body Mass Index (BMI) \> 40 kg/m² or \> 35 kg/m² associated with at least one comorbidity susceptible to improve after surgery (including arterial hypertension, obstructive sleep apnea syndrome and other severe respiratory disorders, severe metabolic disorders, particularly type 2 diabetes, incapacitating osteo-articular disorders, non alcoholic steatohepatitis) * Decision for intervention after multidisciplinary discussion * Written informed consent Exclusion Criteria: * Previous upper abdominal surgery (cholecystectomy excepted) * ASA (American Society of Anesthesiologists) score \> 3 * Ongoing pregnancy or breast feeding * Esophagus pathology or disorder (esophageal varices, esophageal diverticula, esophageal tumors, esophageal strictures) * Coagulation disorder * Patient not covered by social security service and patient on AME * Patient under legal guardianship and trusteeship * Patient with known silicon allergy (calibration bougie contains medical silicon) * More generally, all other contraindications to the use of esophageal bougie MID-TUBE that have been the subject of a scientific paper or have been identified by the practitioner or practitioners
Where it's running
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CHU Antoine Béclère
Clamart, France Recruiting -
Clinique de l'Yvette
Longjumeau, France Recruiting -
Service de chirurgie générale et digestive, œsogastrique et bariatrique - Hôpital Bichat
Paris, France Recruiting -
CHI - Centre Hospitalier Poissy/Saint-Germain-en-Laye
Poissy, France Recruiting -
CH Saint-Denis
Saint-Denis, France Recruiting -
Hôpitaux de Brabois
Vandœuvre-lès-Nancy, France Recruiting
Show 6 more locations
-
Hôpital Ambroise Paré
Boulogne-Billancourt, France Suspended -
Hôpital Côte de Nacre CHU de Caen
Caen, France Withdrawn -
Centre hospitalier Intercommunal de Créteil
Créteil, France Withdrawn -
Hôpital MICHALLON, CHU de Grenoble
La Tronche, France Withdrawn -
Hôpital Dupuytren - Limoges
Limoges, France Withdrawn -
Clinique Mutualiste Chirurgicale
Saint-Etienne, France Withdrawn
Study contacts
- Principal investigator: Hadrien TRANCHART, Dr — Assistance Publique - Hôpitaux de Paris
- Study coordinator: Hadrien TRANCHART, Dr
- Email: hadrien.tranchart@aphp.fr
- Phone: (+33)145374037
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
TSBL-based vs BMI-based limb length in one-anastomosis gastric bypass
This trial tests whether calculating the biliopancreatic limb length by total small bowel length (TSBL) helps weight loss and safety more than using standard BMI-based lengths in adults undergoing a single-center OAGB for obesity.
-
Gut stool tests after sleeve vs gastric bypass
This study tests whether routine stool tests can reveal changes in gut function six months after sleeve gastrectomy or gastric bypass in adults with morbid obesity.
-
Impact of Bariatric Surgery on Female Sexual Function and Hormones
This observational study will see how weight loss surgery affects sexual function and hormone levels in women with severe obesity, six months after surgery.
-
Dual-chamber patient-controlled pain relief after laparoscopic sleeve gastrectomy
This test checks whether a dual-chamber IV patient-controlled pump delivering fentanyl plus ketorolac reduces pain and postoperative nausea and vomiting in adults having laparoscopic sleeve gastrectomy.
-
Exercise program to improve weight, strength, and recovery around bariatric surgery
This program will test whether a structured exercise plan supported by telerehabilitation helps adults with severe obesity who are having bariatric surgery lose more body fat and gain more strength than usual care.
-
Comparing rivaroxaban and enoxaparin for preventing blood clots in obese patients undergoing weight loss surgery
This study tests whether the blood thinner rivaroxaban works better than enoxaparin to prevent blood clots in obese patients having weight loss surgery.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.