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Trabeculectomy Versus Canaloplasty to Treat Glaucoma

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00854256
Recruitment Status : Unknown
Verified April 2013 by University of Cologne.
Recruitment status was:  Recruiting
First Posted : March 3, 2009
Last Update Posted : April 15, 2013
iScience Interventional Corporation
Information provided by:
University of Cologne

Tracking Information
First Submitted Date  ICMJE March 2, 2009
First Posted Date  ICMJE March 3, 2009
Last Update Posted Date April 15, 2013
Study Start Date  ICMJE April 2009
Estimated Primary Completion Date December 2013   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: May 3, 2010)
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.
Original Primary Outcome Measures  ICMJE
 (submitted: March 2, 2009)
Eye pressure [ Time Frame: 1 day, 1 week, 1 month, 3 month, 12 month ]
Change History Complete list of historical versions of study NCT00854256 on Archive Site
Current Secondary Outcome Measures  ICMJE Not Provided
Original Secondary Outcome Measures  ICMJE Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
Descriptive Information
Brief Title  ICMJE Trabeculectomy Versus Canaloplasty to Treat Glaucoma
Official Title  ICMJE Comparison of Canaloplasty and Trabeculectomy in Patients With Open Angle Glaucoma and Inadequate Local Eye Pressure Lowering Therapy - a Prospective, Randomized Study
Brief Summary 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.
Detailed Description Not Provided
Study Type  ICMJE Interventional
Study Phase  ICMJE Not Applicable
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Condition  ICMJE Glaucoma
Intervention  ICMJE
  • Procedure: Canaloplasty
    Canaloplasty surgery
  • Procedure: Trabeculectomy with mitomycin C
    Trabeculectomy with mitomycin C surgery
Study Arms  ICMJE
  • Experimental: Canaloplasty
    Intervention: Procedure: Canaloplasty
  • Active Comparator: Trabeculectomy with mitomycin C
    Intervention: Procedure: Trabeculectomy with mitomycin C
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status  ICMJE Unknown status
Estimated Enrollment  ICMJE
 (submitted: March 2, 2009)
Original Estimated Enrollment  ICMJE Same as current
Estimated Study Completion Date  ICMJE May 2014
Estimated Primary Completion Date December 2013   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

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)
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Germany
Removed Location Countries  
Administrative Information
NCT Number  ICMJE NCT00854256
Other Study ID Numbers  ICMJE iScience-022-CG
Has Data Monitoring Committee No
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Gerhard Welsandt, MD, University of Cologne
Study Sponsor  ICMJE University of Cologne
Collaborators  ICMJE iScience Interventional Corporation
Investigators  ICMJE Not Provided
PRS Account University of Cologne
Verification Date April 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP