EUS-Guided Gallbladder Drainage Versus Conservative Management in Patients Unfit for Surgery After a Biliary Event Without Cholecystitis. DRECON Study (DRECON)
17 juin 2026 mis à jour par: Hospital Mutua de Terrassa
Multicenter Comparative Clinical Trial: EUS-Guided Gallbladder Drainage Versus Conservative Management in Patients Unfit for Surgery After a Biliary Event Without Cholecystitis. DRECON Study: (DRainage, Endoscopic Ultrasound, CONservative)
Cholecystectomy is considered the standard definitive treatment after an acute biliary event (biliary colic, acute pancreatitis, cholangitis, or choledocholithiasis). However, in elderly patients and/or those with significant comorbidities, surgery is often not feasible, leaving this population at high risk of biliary event recurrence (approximately 25-31% per year without treatment).
EUS-guided gallbladder drainage (EUS-GBD) using a lumen-apposing metal stent (LAMS) is an established endoscopic technique currently recommended for acute cholecystitis in patients unfit for surgery. It creates an internal fistula between the gallbladder and the adjacent digestive tract, allowing direct endoscopic access for stone clearance (cholecystoscopy). This approach could theoretically prevent biliary event recurrence similarly to cholecystectomy.
The DRECON study (DRainaige, Endoscopic ultrasound, CONservative) is a multicenter, randomized, comparative clinical trial evaluating whether EUS-GBD with LAMS reduces biliary recurrence at 1 year compared to conservative managment (CM) in patients unfit for surgery after a biliary event without acute cholecystitis who are candidates for elective cholecystectomy.
Primary hypothesis: EUS-GBD will reduce the risk of biliary event recurrence (biliary colic, acute pancreatitis, cholangitis, choledocholithiasis, or cholecystitis) at 1 year of follow-up compared to conservative management in patients unfit for surgery with gallbladder lithiasis.
Estimated sample: 110 patients (55 per arm). Randomization 1:1 (EUS-GBD vs CM), stratified by centre and prior biliary sphincterotomy. Duration: 24 months recruitment + 12 months follow-up (total 3 years).
Participating centres: Hospital Universitari Mútua de Terrassa (coordinating centre), Hospital Universitari de Bellvitge, Hospital General de Granollers, Hospital Universitari Parc Taulí de Sabadell, Hospital Universitari de la Santa Creu i Sant Pau, Hospital Clínico Universitario de Valencia, Hospital General Universitario Dr Balmis and Complexo Hospitalario Universitario de A Coruña.
Aperçu de l'étude
Statut
Pas encore de recrutement
Les conditions
Intervention / Traitement
Type d'étude
Interventionnel
Inscription (Estimé)
110
Phase
- N'est pas applicable
Contacts et emplacements
Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.
Coordonnées de l'étude
- Nom: Emma Sudrià López
- Numéro de téléphone: 937 36 50 50
- E-mail: malaltiaceliaca@mutuaterrrassa.cat
Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Non
La description
Inclusion Criteria:
- Patients ≥ 18 years of age
- Patients who have experienced a benign biliary event (biliary colic, acute pancreatitis, cholangitis, or choledocholithiasis) and are candidates for elective cholecystectomy
- Patients deemed unfuit for surgery (age ≥ 80 years, ASA score ≥ 3, Charlson Comorbidity Index ≥ 5) or who voluntarily refuse surgery
- Diagnosis of lithogenic/lithiasic material in the gallbladder by imaging (biliary sludge, microlithiasis, and/or cholelithiasis)
- Signed informed consent
Exclusion Criteria:
- No signed informed consent
- Prior cholecystectomy
- Biliary event secondary to malignant etiology
- Acute cholecystitis diagnosed according to Tokyo 2018 criteria
- Moderate-to-severe ascites without prior paracentesis
- Perforated gallbladder
- Severe coagulopathy (INR > 1.5) or thrombocytopenia (platelets < 50,000/μL) not correctable
- Any clinical condition preventing sedation
- Patient dependent for daily activities (ECOG ≥ 4)
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: EUS-GBD
|
Endoscopic procedure under CO2 insufflation using a therapeutic linear echoendoscope (therapeutic channel >3.7 mm).
A cholecystogastrostomy or cholecystoduodenostomy is created by deploying a LAMS between the gallbladder and the gastric antrum or duodenal bulb (operator's choice).
A coaxial double-pigtail plastic stent (7Fr, 3-5 cm) is placed through the LAMS.
|
|
Comparateur actif: CM
|
Standard supportive medical care will be determined by the treating medical team according to clinical evolution (analgesia, fluid support, antibiotic therapy, etc.).
Patients with lithogenic material in the extrahepatic bile duct confirmed by imaging or EUS will undergo endoscopic retrograde cholangiopancreatography (ERCP).
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Clinical biliary recurrence rate at 1-year follow-up
Délai: 12 months after procedure (in experimental Arm 1- EUS-GBD) or randomization (in case of Arm 2 - CM)
|
Percentage of patients presenting a new biliary event (biliary colic, acute pancreatitis, cholangitis, choledocholithiasis, or cholecystitis) defined according to Tokyo 2018 guidelines and revised Atlanta 2012 criteria.
|
12 months after procedure (in experimental Arm 1- EUS-GBD) or randomization (in case of Arm 2 - CM)
|
Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Parrainer
Publications et liens utiles
La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.
Publications générales
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- Bazaga S, Garcia-Alonso FJ, Aparicio Tormo JR, Martinez Moreno B, Sanchiz V, Gornals JB, Loras C, Teran A, Vazquez-Sequeiros E, Pedraza Sanz R, Subtil JC, Perez-Millan A, Uceda Porta F, Vila JJ, de la Serna-Higuera C, Couto-Worner I, Guarner-Argente C, Perez-Miranda M; RNPAL (Registro nacional de protesis de aposicion luminal, national lumen-apposing metal stent registry) study group. Endoscopic ultrasound-guided gallbladder drainage with long-term lumen-apposing metal stent indwell: 1-year results from a prospective nationwide observational study. J Gastroenterol Hepatol. 2024 Feb;39(2):360-368. doi: 10.1111/jgh.16392. Epub 2023 Nov 3.
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- Canakis A, Tugarinov N, Deliwala S, Twery B, Miro-Gonzalez A, Beran A, Gorman EF, Hathorn K, Gilman AJ, Chawla S, Irani SS, Baron TH. Clinical outcomes of Endoscopic ultrasound--guided gallbladder drainage in patients with acute cholecystitis with >/=1 year of follow-up: a systematic review and meta-analysis. Gastrointest Endosc. 2026 Jan;103(1):48-56.e11. doi: 10.1016/j.gie.2025.07.025. Epub 2025 Jul 22.
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Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude (Estimé)
1 juillet 2026
Achèvement primaire (Estimé)
1 juillet 2029
Achèvement de l'étude (Estimé)
1 juillet 2029
Dates d'inscription aux études
Première soumission
12 juin 2026
Première soumission répondant aux critères de contrôle qualité
12 juin 2026
Première publication (Réel)
18 juin 2026
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
22 juin 2026
Dernière mise à jour soumise répondant aux critères de contrôle qualité
17 juin 2026
Dernière vérification
1 juin 2026
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- E/26-045
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Non
Étudie un produit d'appareil réglementé par la FDA américaine
Non
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