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Aspirin for metal stent in malignant distal common bile duct obstruction (AIMS): study protocol for a multicenter randomized controlled trial
Cited 1 time in
Web of Science
Cited 2 time in Scopus
- Authors
- Issue Date
- 2020-01-30
- Publisher
- BMC
- Citation
- Trials, 21(1):120
- Keywords
- Endoscopic retrograde cholangiopancreatography ; Self-expandable metallic stents ; Randomized controlled trial ; Aspirin
- Abstract
- Endoscopic retrograde biliary drainage (ERBD) is the treatment of choice for patients with malignant distal common bile duct (CBD) obstruction. Self-expandable metal stents (SEMS), which are commonly used in unresectable cases, have many clinical advantages, including longer stent patency. Although the expected patency of SEMS is around 8 months, it has recently been reported that the duration of SEMS patency in patients using aspirin is prolonged. Our study, therefore, aims to investigate the effect of aspirin on SEMS patency.
This is an investigator-initiated, prospective, multicenter, double-blind, randomized placebo-controlled trial that will be conducted from November 2017 in four tertiary centers in South Korea. We intend to include in our study 184 adult (aged ≥ 20 years) patients with malignant distal CBD obstruction for whom ERBD with SEMS was successfully performed. The patients will be randomly allocated to two groups, which will comprise patients who have either taken 100 mg aspirin or a placebo for 6 months after index ERBD. The primary outcome will be the rate of stent dysfunction, and the secondary outcomes will be the duration of patency, the rate of reintervention, and the occurrence of adverse events.
The aspirin for metal stents in malignant distal common bile duct obstruction (AIMS) study should determine the efficacy of aspirin in maintaining metal-stent patency in patients with malignant distal CBD obstructive.
ClinicalTrials.gov, ID: NCT03279809. Registered on 5 September 2017.
- ISSN
- 1745-6215
- Language
- English
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