# Safety and Effectiveness of Collagen Cross Linking in Progressive Mild and Moderate Keratoconus

> **NCT00815256** · PHASE3 · UNKNOWN · sponsor: **Federal University of São Paulo** · enrollment: 15 (estimated)

## Conditions studied

- Cornea Degeneration
- Progressive Keratoconus

## Interventions

- **PROCEDURE:** Collagen Cross Linking with Riboflavin and UVA light

## Key facts

- **NCT ID:** NCT00815256
- **Lead sponsor:** Federal University of São Paulo
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2008-08
- **Primary completion:** 2009-08
- **Final completion:** —
- **Target enrollment:** 15 (ESTIMATED)
- **Last updated:** 2008-12-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00815256

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00815256, "Safety and Effectiveness of Collagen Cross Linking in Progressive Mild and Moderate Keratoconus". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT00815256. Licensed CC0.

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