CI

At a glance

ClinicalIndex Comparison Record
N/AActive· 356 enrolled
Drug / intervention
CCL (Corneal Cross Linking)procedure
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT00560651
NCT00560651N/AActive

German Corneal Cross Linking Register

Suphi Taneri·observational·Posted Nov 20, 2007·Updated Jun 18, 2026

In Brief

An observational study evaluating CCL (Corneal Cross Linking) for Keratoconus. Active but no longer recruiting, targeting 356 participants across 2 sites.

Detailed Summary

Corneal Cross Linking is new treatment modality for patients with keratoconus. A keratoconus is characterized by progressive bulging and thinning of the eye's cornea. Keratoconus is a potentially severely sight impairing condition that may necessitate corneal transplantation in the progressive state. Corneal Cross Linking is designed to * increase the cornea's mechanical stability * to stop progression of bulging and thinning of the cornea * to prevent the need for corneal transplantation Corneal Cross Linking is performed by 1. Applying Riboflavin (Vitamin B2) eye drops every 2 minutes for 30 minutes to the cornea 2. Illuminating the cornea with UV-light This register of Corneal Cross Linking procedures performed in Germany serves to * gather long-term results * detect rare complications and side-effects * evaluate the efficacy in a large number of patients

Study Details

Study Typeobservational
Allocation--
Masking--
Primary Purpose--
ConditionsKeratoconus
CountriesGermany
Collaborators--

Timeline

N/AActive
200820092010201120122013201420152016201720182019202020212022202320242025202620272028
First PostedNov 20, 2007
Enrollment StartNov 1, 2007
Primary CompletionNov 1, 2024
Study CompletionNov 1, 2027
TodayJul 2, 2026
Enrollment to primary: 17 yearsPosted 18.6 years ago

Interventions

CCL (Corneal Cross Linking)procedure

Apply Riboflavin 0.1% in Dextran 500 20% in NaCl solution Illuminate with UV-light of 365 nm wave-length and 3.0 mW/cm² intensity at 5 cm distance