# Nasolacrimal Sac Biopsy in Endoscopic Dacryocystorhinostomy

> **NCT04793230** · — · COMPLETED · sponsor: **Al-Azhar University** · enrollment: 50 (actual)

## Conditions studied

- Dacryocystitis; Chronic

## Interventions

- **DIAGNOSTIC_TEST:** biopsying

## Key facts

- **NCT ID:** NCT04793230
- **Lead sponsor:** Al-Azhar University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2019-01-01
- **Primary completion:** 2020-12-30
- **Final completion:** 2021-03-09
- **Target enrollment:** 50 (ACTUAL)
- **Last updated:** 2021-03-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04793230

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04793230, "Nasolacrimal Sac Biopsy in Endoscopic Dacryocystorhinostomy". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04793230. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*