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EUS-Guided Gallbladder Drainage Versus Conservative Management in Patients Unfit for Surgery After a Biliary Event Without Cholecystitis. DRECON Study (DRECON)

2026年6月17日 更新者：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.

研究概览

地位

尚未招聘

条件

干预/治疗

研究类型

介入性

注册 (估计的)

110

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习联系方式

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 成人
  • 年长者

接受健康志愿者

不

描述

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)

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 主要用途：治疗
  • 分配：随机化
  • 介入模型：并行分配
  • 屏蔽：无（打开标签）

武器和干预

参与者组/臂
干预/治疗
实验性的：EUS-GBD
程序：EUS-guided gallbladder drainage (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.
有源比较器：CM
其他：Conservative management (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).

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
Clinical biliary recurrence rate at 1-year follow-up
大体时间：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)

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Hospital Mutua de Terrassa

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (估计的)

2026年7月1日

初级完成 (估计的)

2029年7月1日

研究完成 (估计的)

2029年7月1日

研究注册日期

首次提交

2026年6月12日

首先提交符合 QC 标准的

2026年6月12日

首次发布 (实际的)

2026年6月18日

研究记录更新

最后更新发布 (实际的)

2026年6月22日

上次提交的符合 QC 标准的更新

2026年6月17日

最后验证

2026年6月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • E/26-045

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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