# Difficult Biliary Cannulation in Patients With Distal Malignant Biliary Obstruction: an Underestimated Problem

> **NCT04709666** · — · COMPLETED · sponsor: **Istituto Clinico Humanitas** · enrollment: 600 (actual)

## Conditions studied

- Biliary Condition

## Interventions

- **PROCEDURE:** Endsocopic Retrograde ColangioPancreatography (ERCP)

## Key facts

- **NCT ID:** NCT04709666
- **Lead sponsor:** Istituto Clinico Humanitas
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2014-01-01
- **Primary completion:** 2021-07-31
- **Final completion:** 2021-07-31
- **Target enrollment:** 600 (ACTUAL)
- **Last updated:** 2021-09-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04709666

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04709666, "Difficult Biliary Cannulation in Patients With Distal Malignant Biliary Obstruction: an Underestimated Problem". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04709666. Licensed CC0.

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