NCT06862479

Brief Summary

The global prevalence of obesity has prompted an increase in bariatric surgery, which is the only management strategy that provides long-term weight loss and improvement of obesity-related diseases. Bariatric surgeries include sleeve gastrectomy(SG), Roux-en-Y gastric bypass(RYGB),and laparoscopically adjustable gastric banding(LAGB). The incidence of adverse events depends on the type of bariatric surgery performed, with serious adverse events occurring in approximately 4% and mortality in 0.1% patients. The incidence of fistulas after SG varies between 0.2% to 2.5% and between 1% and 4.9% in patients who have undergone an RYGB. The incidence of strictures after SG is approximately 0.35%. Older, more obese, and male patients with multiple comorbidities related to obesity are at increased risk for the development of fistulas and mortality following bariatric surgery. Additionally, surgery after LAGB increases the risk of adverse events. This study will compare the efficacy and safety of the Luso-Cor esophageal stent versus conventional covered metallic stents versus endoscopic vacuum therapy in the management of fistulas and anastomotic dehiscences after oncologic or bariatric surgery on the stomach and esophagus.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
180

participants targeted

Target at P50-P75 for all trials

Timeline
45mo left

Started Jan 2025

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress27%
Jan 2025Jan 2030

Study Start

First participant enrolled

January 1, 2025

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

February 18, 2025

Completed
16 days until next milestone

First Posted

Study publicly available on registry

March 6, 2025

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2028

Expected
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2030

Last Updated

May 6, 2026

Status Verified

May 1, 2026

Enrollment Period

3 years

First QC Date

February 18, 2025

Last Update Submit

May 5, 2026

Conditions

Keywords

FistulasAnastomotic dehiscencesEndoscopic managementStentsEndoscopic vacuum therapy

Outcome Measures

Primary Outcomes (2)

  • Compare the efficacy of the Luso-Cor versus conventional stents versus endoscopic vacuum therapy in the management of fistulas after oncologic surgery on the stomach and esophagus and bariatric surgery in terms of fistula closure.

    To evaluate and compare the performance of the Luso-Cor oesophageal stent with other stents or EVT in management of fistulas after bariatric and oncologic surgery on the upper digestive tract with regard to fistula closure rate expressed as percentage

    36 months for recruitment of 180 patients.

  • Compare the safety of the Luso-Cor versus conventional stents versus endoscopic vacuum therapy in the management of fistulas after oncologic surgery on the stomach and esophagus and bariatric surgery in terms of rate of adverse events

    To evaluate and compare the safety of the Luso-Cor oesophageal stent with other stents or EVT in management of fistulas after bariatric and oncologic surgery on the upper digestive tract with regard to early and late adverse event rate expressed as percentage.

    36 months for recruitment of 180 patients.

Secondary Outcomes (4)

  • Compare the technical success of the Luso-Cor versus conventional stents versus endoscopic vacuum therapy in the management of fistulas after oncologic surgery on the stomach and esophagus and bariatric surgery

    36 months for recruitment of 180 patients.

  • Compare duration of hospitalization in patients developing fistulas after oncologic surgery on the stomach and esophagus or bariatric surgery managed with the Luso-Cor versus conventional stents versus endoscopic vacuum therapy.

    36 months for recruitment of 180 patients.

  • Compare the number of endoscopies till fistula closure in patients managed with the Luso-Cor versus conventional stents versus endoscopic vacuum therapy who developed fistulas after oncologic surgery on the stomach and esophagus or bariatric surgery.

    36 months for recruitment of 180 patients.

  • Compare the mortality in patients who developed fistulas after oncologic surgery on the stomach and esophagus and bariatric surgery, managed with the Luso-Cor versus conventional stents versus endoscopic vacuum therapy.

    36 months for recruitment of 180 patients.

Study Arms (1)

Fistulas after oncologic or bariatric surgery on the stomach or esophagus

Patients who develop fistulas after oncologic surgery on the stomach or esophagus or those patients who develop fistulas after bariatric surgery (Vertical or sleeve gastrectomy or gastric bypass) managed endoscopically with endoscopic vacuum therapy group.

Procedure: Endoscopic management of fistulas with stents or vacum therapy

Interventions

A prospective registry of patients who develop fistulas after oncologic surgery on the stomach or esophagus as well as those after bariatric surgery and managed endoscopically with stents or endoscopic vacuum therapy will be evaluated to assess and compare the efficacy and safety of the Luso-Cor versus conventional partially or fully covered metallic stents or bariatric stents or endoscopic vacuum therapy.

Fistulas after oncologic or bariatric surgery on the stomach or esophagus

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients who develop fistulas or anastomotic dehiscences after oncologic surgery on the stomach or esophagus or after bariatric surgery.

You may qualify if:

  • Patients undergoing endoscopic management of fistulas after bariatric surgery or dehiscences of esophago-jejunal or gastro-jejunal anastomosis after esophageal or gastric oncologic surgery will be included in the study.

You may not qualify if:

  • Pregnancy
  • Age \< 18years
  • Inability to give informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Serviço de Gastrenterologia e Hepatologia, Unidade Local de Saúde Santa Maria

Lisbon, Lisbon District, 1649-035, Portugal

Location

Related Publications (17)

  • do Monte Junior ES, de Moura DTH, Ribeiro IB, Hathorn KE, Farias GFA, Turiani CV, Medeiros FS, Bernardo WM, de Moura EGH. Endoscopic vacuum therapy versus endoscopic stenting for upper gastrointestinal transmural defects: Systematic review and meta-analysis. Dig Endosc. 2021 Sep;33(6):892-902. doi: 10.1111/den.13813. Epub 2020 Oct 28.

    PMID: 33300634BACKGROUND
  • Clinical Efficacy and Safety of a Novel Stent for Fistula Management Following Sleeve Gastrectomy Noronha Ferreira, Carlos et al. Techniques and Innovations in Gastrointestinal Endoscopy, Volume 26, Issue 1, 12 - 20

    BACKGROUND
  • Eisendrath P, Cremer M, Himpens J, Cadiere GB, Le Moine O, Deviere J. Endotherapy including temporary stenting of fistulas of the upper gastrointestinal tract after laparoscopic bariatric surgery. Endoscopy. 2007 Jul;39(7):625-30. doi: 10.1055/s-2007-966533.

    PMID: 17611917BACKGROUND
  • Kanters AE, Shubeck SP, Varban OA, Dimick JB, Telem DA. Incidence and Efficacy of Stent Placement in Leak Management After Bariatric Surgery: An MBSAQIP Analysis. Ann Surg. 2020 Jan;271(1):134-139. doi: 10.1097/SLA.0000000000003023.

    PMID: 30247333BACKGROUND
  • Swinnen J, Eisendrath P, Rigaux J, Kahegeshe L, Lemmers A, Le Moine O, Deviere J. Self-expandable metal stents for the treatment of benign upper GI leaks and perforations. Gastrointest Endosc. 2011 May;73(5):890-9. doi: 10.1016/j.gie.2010.12.019.

    PMID: 21521563BACKGROUND
  • Bege T, Emungania O, Vitton V, Ah-Soune P, Nocca D, Noel P, Bradjanian S, Berdah SV, Brunet C, Grimaud JC, Barthet M. An endoscopic strategy for management of anastomotic complications from bariatric surgery: a prospective study. Gastrointest Endosc. 2011 Feb;73(2):238-44. doi: 10.1016/j.gie.2010.10.010.

    PMID: 21295637BACKGROUND
  • Eubanks S, Edwards CA, Fearing NM, Ramaswamy A, de la Torre RA, Thaler KJ, Miedema BW, Scott JS. Use of endoscopic stents to treat anastomotic complications after bariatric surgery. J Am Coll Surg. 2008 May;206(5):935-8; discussion 938-9. doi: 10.1016/j.jamcollsurg.2008.02.016.

    PMID: 18471727BACKGROUND
  • Puli SR, Spofford IS, Thompson CC. Use of self-expandable stents in the treatment of bariatric surgery leaks: a systematic review and meta-analysis. Gastrointest Endosc. 2012 Feb;75(2):287-93. doi: 10.1016/j.gie.2011.09.010. Epub 2011 Nov 1.

    PMID: 22047699BACKGROUND
  • Fernandez AZ Jr, DeMaria EJ, Tichansky DS, Kellum JM, Wolfe LG, Meador J, Sugerman HJ. Experience with over 3,000 open and laparoscopic bariatric procedures: multivariate analysis of factors related to leak and resultant mortality. Surg Endosc. 2004 Feb;18(2):193-7. doi: 10.1007/s00464-003-8926-y. Epub 2003 Dec 29.

    PMID: 14691697BACKGROUND
  • van Wezenbeek MR, de Milliano MM, Nienhuijs SW, Friederich P, Gilissen LP. A Specifically Designed Stent for Anastomotic Leaks after Bariatric Surgery: Experiences in a Tertiary Referral Hospital. Obes Surg. 2016 Aug;26(8):1875-80. doi: 10.1007/s11695-015-2027-6.

    PMID: 26699374BACKGROUND
  • Ballesta C, Berindoague R, Cabrera M, Palau M, Gonzales M. Management of anastomotic leaks after laparoscopic Roux-en-Y gastric bypass. Obes Surg. 2008 Jun;18(6):623-30. doi: 10.1007/s11695-007-9297-6. Epub 2008 Apr 8.

    PMID: 18392906BACKGROUND
  • Rosenthal RJ; International Sleeve Gastrectomy Expert Panel; Diaz AA, Arvidsson D, Baker RS, Basso N, Bellanger D, Boza C, El Mourad H, France M, Gagner M, Galvao-Neto M, Higa KD, Himpens J, Hutchinson CM, Jacobs M, Jorgensen JO, Jossart G, Lakdawala M, Nguyen NT, Nocca D, Prager G, Pomp A, Ramos AC, Rosenthal RJ, Shah S, Vix M, Wittgrove A, Zundel N. International Sleeve Gastrectomy Expert Panel Consensus Statement: best practice guidelines based on experience of >12,000 cases. Surg Obes Relat Dis. 2012 Jan-Feb;8(1):8-19. doi: 10.1016/j.soard.2011.10.019. Epub 2011 Nov 10.

    PMID: 22248433BACKGROUND
  • Longitudinal Assessment of Bariatric Surgery (LABS) Consortium; Flum DR, Belle SH, King WC, Wahed AS, Berk P, Chapman W, Pories W, Courcoulas A, McCloskey C, Mitchell J, Patterson E, Pomp A, Staten MA, Yanovski SZ, Thirlby R, Wolfe B. Perioperative safety in the longitudinal assessment of bariatric surgery. N Engl J Med. 2009 Jul 30;361(5):445-54. doi: 10.1056/NEJMoa0901836.

    PMID: 19641201BACKGROUND
  • American Society for Metabolic and Bariatric Surgery Clinical Issues Committee. American Society for Metabolic and Bariatric Surgery position statement on global bariatric healthcare. Surg Obes Relat Dis. 2011 Nov-Dec;7(6):669-71. doi: 10.1016/j.soard.2011.08.009. Epub 2011 Aug 27. No abstract available.

    PMID: 21955741BACKGROUND
  • Sjostrom L, Lindroos AK, Peltonen M, Torgerson J, Bouchard C, Carlsson B, Dahlgren S, Larsson B, Narbro K, Sjostrom CD, Sullivan M, Wedel H; Swedish Obese Subjects Study Scientific Group. Lifestyle, diabetes, and cardiovascular risk factors 10 years after bariatric surgery. N Engl J Med. 2004 Dec 23;351(26):2683-93. doi: 10.1056/NEJMoa035622.

    PMID: 15616203BACKGROUND
  • Schiesser M, Kressig P, Bueter M, Nocito A, Bauerfeind P, Gubler C. Successful endoscopic management of gastrointestinal leakages after laparoscopic Roux-en-Y gastric bypass surgery. Dig Surg. 2014;31(1):67-70. doi: 10.1159/000358849. Epub 2014 May 8.

    PMID: 24819500BACKGROUND
  • Rogalski P, Swidnicka-Siergiejko A, Wasielica-Berger J, Zienkiewicz D, Wieckowska B, Wroblewski E, Baniukiewicz A, Rogalska-Plonska M, Siergiejko G, Dabrowski A, Daniluk J. Endoscopic management of leaks and fistulas after bariatric surgery: a systematic review and meta-analysis. Surg Endosc. 2021 Mar;35(3):1067-1087. doi: 10.1007/s00464-020-07471-1. Epub 2020 Feb 27.

    PMID: 32107632BACKGROUND

MeSH Terms

Conditions

ObesityObesity, MorbidEsophageal NeoplasmsStomach NeoplasmsFistulaAnastomotic Leak

Interventions

Stents

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsHead and Neck NeoplasmsDigestive System DiseasesEsophageal DiseasesGastrointestinal DiseasesStomach DiseasesPathological Conditions, AnatomicalPostoperative ComplicationsPathologic Processes

Intervention Hierarchy (Ancestors)

Prostheses and ImplantsEquipment and Supplies

Study Officials

  • Carlos Noronha Ferreira, MD, MSc, PhD

    Serviço de Gastrenterologia e Hepatologia, Unidade Local de Saúde Santa Maria

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Target Duration
1 Year
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor Dr.

Study Record Dates

First Submitted

February 18, 2025

First Posted

March 6, 2025

Study Start

January 1, 2025

Primary Completion (Estimated)

January 1, 2028

Study Completion (Estimated)

January 1, 2030

Last Updated

May 6, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will not share

This is an investigator driven study which aims to evaluate and compare efficacy of the Luso-Cor esophageal stent versus conventional covered stents versus endoscopic vacuum therapy in the management of fistulas after oncologic surgery on the stomach and esophagus and bariatric surgery

Locations