# The Discovery of the Double Sphincter in Gallbladder

> **NCT01998451** · PHASE4 · UNKNOWN · sponsor: **The First Affiliated Hospital of Guangzhou Medical University** · enrollment: 150 (estimated)

## Conditions studied

- Gallstone

## Interventions

- **DRUG:** Tauroursodeoxycholic acid

## Key facts

- **NCT ID:** NCT01998451
- **Lead sponsor:** The First Affiliated Hospital of Guangzhou Medical University
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2012-12
- **Primary completion:** 2018-12
- **Final completion:** 2018-12
- **Target enrollment:** 150 (ESTIMATED)
- **Last updated:** 2016-03-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01998451

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01998451, "The Discovery of the Double Sphincter in Gallbladder". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT01998451. Licensed CC0.

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