# Cholangioscopy or Conventional Techniques for Indeterminate Biliary Stenosis

> **NCT04840537** · NA · UNKNOWN · sponsor: **Frederic PRAT, MD, PhD** · enrollment: 150 (estimated)

## Conditions studied

- Malignant Biliary Stenosis

## Interventions

- **PROCEDURE:** endoscopic retrograde cholangiopancreatography with cholangioscopy in the first procedure of ERCP

## Key facts

- **NCT ID:** NCT04840537
- **Lead sponsor:** Frederic PRAT, MD, PhD
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2018-12-26
- **Primary completion:** 2018-12-26
- **Final completion:** 2022-12-26
- **Target enrollment:** 150 (ESTIMATED)
- **Last updated:** 2021-04-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04840537

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04840537, "Cholangioscopy or Conventional Techniques for Indeterminate Biliary Stenosis". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04840537. Licensed CC0.

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