Trabeculectomy Versus Canaloplasty to Treat Glaucoma

April 12, 2013 updated by: University of Cologne

Comparison of Canaloplasty and Trabeculectomy in Patients With Open Angle Glaucoma and Inadequate Local Eye Pressure Lowering Therapy - a Prospective, Randomized Study

The aim of the study is to investigate pressure lowering effect of two surgical methods canaloplasty and trabeculectomy in patients with open angle glaucoma, in which under local pressure lowering therapy the progression of the disease could not be stopped, and thus a pressure lowering surgical intervention is necessary. The risks in the postoperative course in Canaloplasty in the literature as lower than for the trabeculectomy with mitomycin-C. Conversely, large glaucoma centers questioning the effectiveness of permanent pressure lowering of canaloplasty. Precisely this question is investigated in the study.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

60

Phase

  • Not Applicable

Contacts and Locations

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

Study Contact

Study Locations

  • Germany
    • NRW
      • Cologne, NRW, Germany, 50924
        • Recruiting
        • Centre of Ophthalmology, University of Cologne

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

16 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patients with open angle glaucoma and excavation of 0.4 - 0.8
  • 60 eyes of 60 patients (30 patients for trabeculectomy, 30 patients for Canaloplasty) The ratio of female / male is not involved.
  • Eye pressure under local therapy: 20mmHg and above (corrected with pachymetry table).
  • Local drug therapy: at least 2 eye pressure lowering ingredients or absolute intolerance to preservatives or eye drops.
  • general anesthesia possible.
  • The operation must be signed by the surgeon as a state-of-the-art performed without complication to be evaluated. If the operation does not meet this criterion, the patient is excluded from the study.

Exclusion Criteria:

  • all patients are not included in the group of inclusion criteria, or:
  • Phenprocoumon therapy.
  • operation is not done state-of-the-art.
  • after the surgery: additional eye pressure lowering surgery, cataract surgery, keratoplasty, laser surgery in the anterior eye segment (except suture lysis after trabeculectomy)
  • Uveitis, or possible inflammation of the eye
  • Previous eye pressure lowering operations or laser interventions
  • Corneal Refractive Surgery (pseudophakia allowed)

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: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Canaloplasty
Procedure: Canaloplasty
Canaloplasty surgery
Active Comparator: Trabeculectomy with mitomycin C
Procedure: Trabeculectomy with mitomycin C
Trabeculectomy with mitomycin C surgery

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Eye pressure
Time Frame: Within 12 month after surgery
Eye pressure is measured after 1 month, 2 months, 3 months, 6 months, 9 months, and 12 months after surgery.
Within 12 month after surgery

Collaborators and Investigators

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

Sponsor

University of Cologne

Collaborators

iScience Interventional Corporation

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

April 1, 2009

Primary Completion (Anticipated)

December 1, 2013

Study Completion (Anticipated)

May 1, 2014

Study Registration Dates

First Submitted

March 2, 2009

First Submitted That Met QC Criteria

March 2, 2009

First Posted (Estimate)

March 3, 2009

Study Record Updates

Last Update Posted (Estimate)

April 15, 2013

Last Update Submitted That Met QC Criteria

April 12, 2013

Last Verified

April 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • iScience-022-CG

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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