Riboflavin Mediated Corneal Crosslinking for Stabilizing Progression of Keratoconus (CCL)

January 16, 2013 updated by: D Dr. Philip Maier, University Hospital Freiburg

Background: Corneal cross linking is a procedure that induces collagen cross linking of the corneal stroma due to release of reactive oxygen radicals upon activation of topically applied riboflavine A by UVA exposure. This procedure might be capable of reducing keratocouns progression.

Purpose: Although there are no randomised controlled trials on the effectiveness of corneal cross linking for the treatment of keratoconus it gains more and more importance in the general clinical setting. Therefore, the investigators started such randomised, placebo controlled, double blinded, multicenter trial to find out if this treatment is as effective as it promises to be.

Methods: Randomised, placebo controlled, double blinded, multicenter trial.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Germany
    • Baden-Württemberg
      • Freiburg, Baden-Württemberg, Germany, 79106
        • University eye hospital Freiburg

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

12 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Only early Keratoconus (Contact lens fitting)
  • Progression of Ametropia.
  • Corneal thickness > 450µm

Exclusion Criteria:

  • Further ophthalmic diseases
  • History of ocular surgery
  • Pregnancy, brest feeding
  • Allergy against Riboflavin
  • End stage Keratoconus

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
Procedure: Riboflavin/UVA crosslinking
Removal of epithelium. Riboflavin eye drops. UVA exposure.
Sham Comparator: 2
Procedure: Sham treatment
Fluorescein eye drops. Exposure with blue light

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Keratoconus progression
Time Frame: 3 years
3 years
Endothelial cell loss
Time Frame: 3 years
3 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Hospital Freiburg

Collaborators

Peschke Meditrade, GmbH

Investigators

  • Principal Investigator: Philip Maier, MD, University Eye Hospital, Freiburg

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2007

Primary Completion (Actual)

December 1, 2012

Study Completion (Actual)

December 1, 2012

Study Registration Dates

First Submitted

February 20, 2008

First Submitted That Met QC Criteria

February 28, 2008

First Posted (Estimate)

February 29, 2008

Study Record Updates

Last Update Posted (Estimate)

January 17, 2013

Last Update Submitted That Met QC Criteria

January 16, 2013

Last Verified

January 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • FR-03-CCL

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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