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  • Title: Multicenter study of lumen-apposing metal stents with or without pigtail in endoscopic ultrasound-guided biliary drainage for malignant obstruction-BAMPI TRIAL: an open-label, randomized controlled trial protocol.
    Author: Garcia-Sumalla A, Loras C, Sanchiz V, Sanz RP, Vazquez-Sequeiros E, Aparicio JR, de la Serna-Higuera C, Luna-Rodriguez D, Andujar X, Capilla M, Barberá T, Foruny-Olcina JR, Martínez B, Dura M, Salord S, Laquente B, Tebe C, Videla S, Perez-Miranda M, Gornals JB, Spanish Working Group on Endoscopic Ultrasound Guided Biliary Drainage.
    Journal: Trials; 2022 Feb 25; 23(1):181. PubMed ID: 35216619.
    Abstract:
    BACKGROUND: It is unclear whether the insertion of an axis-orienting double-pigtail plastic stent (DPS) through biliary lumen-apposing meal stent (LAMS) in EUS-guided choledochoduodenostomy (CDS) improves the stent patency. The aim of this study is to determine whether this technical variant offers a clinical benefit in EUS-guided biliary drainage (BD) for the management of distal malignant biliary obstruction. METHODS/DESIGN: This is a multicenter open-label, randomized controlled trial with two parallel groups. Eighty-four patients with malignant biliary obstruction will undergo EUS-BD (CDS type) using LAMS in 7 tertiary hospitals in Spain and will be randomized to the LAMS and LAMS plus DPS groups. The primary endpoint is the rate of recurrent biliary obstruction, as a stent dysfunction parameter, detected during follow-up. Secondary endpoints: technical and clinical success (reduction in bilirubin > 50% within 14 days of stent placement), safety, and others (number of reinterventions, time to biliary obstruction, prognostic factors, survival rate). DISCUSSION: The BAMPI trial has been designed to determine whether the addition of a coaxial axis-orienting DPS through LAMS is superior to LAMS alone to prevent stent dysfunction. TRIAL REGISTRATION: ClinicalTrials.gov NCT04595058 . Registered on October 14, 2020.
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