# The Marker Expression of Corneal Surface From Penetrating Keratopathy After Collagenase A Assisted COMET Case Series

> **NCT04066439** · — · UNKNOWN · sponsor: **National Taiwan University Hospital** · enrollment: 4 (estimated)

## Conditions studied

- Cornea

## Interventions

- **OTHER:** specimen

## Key facts

- **NCT ID:** NCT04066439
- **Lead sponsor:** National Taiwan University Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2019-08-01
- **Primary completion:** 2020-08-06
- **Final completion:** 2020-08-06
- **Target enrollment:** 4 (ESTIMATED)
- **Last updated:** 2019-08-28


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04066439

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04066439, "The Marker Expression of Corneal Surface From Penetrating Keratopathy After Collagenase A Assisted COMET Case Series". Retrieved via AI Analytics 2026-09-27 from https://api.ai-analytics.org/clinical/NCT04066439. Licensed CC0.

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