# High Definition Colonoscopy (HDC) vs. Dye Spraying Chromo-colonoscopy (DSC) in Screening Patients With Long-standing Inflammatory Bowel Disease (IBD)

> **NCT04191655** · NA · COMPLETED · sponsor: **Beth Israel Deaconess Medical Center** · enrollment: 211 (actual)

## Conditions studied

- Inflammatory Bowel Diseases
- Colon Dysplasia
- Ulcerative Colitis
- Crohn Colitis
- Indeterminate Colitis

## Interventions

- **DEVICE:** High Definition Colonoscopy
- **DEVICE:** Dye Spraying Chromocolonoscopy

## Key facts

- **NCT ID:** NCT04191655
- **Lead sponsor:** Beth Israel Deaconess Medical Center
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-04-03
- **Primary completion:** 2024-01-01
- **Final completion:** 2024-01-01
- **Target enrollment:** 211 (ACTUAL)
- **Last updated:** 2026-03-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04191655

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04191655, "High Definition Colonoscopy (HDC) vs. Dye Spraying Chromo-colonoscopy (DSC) in Screening Patients With Long-standing Inflammatory Bowel Disease (IBD)". Retrieved via AI Analytics 2026-08-02 from https://api.ai-analytics.org/clinical/NCT04191655. Licensed CC0.

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