NCT01422525

Brief Summary

At present, trabeculectomy is the most common performed and effective surgical method of filtration surgery for patients with medically uncontrolled glaucoma. The aim of this prospective observational case study is to determine changes of the peripapillary retinal nerve fiber layer thickness using spectral domain optical coherence tomography in patients with glaucoma after surgical reduction of intraocular pressure.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
12

participants targeted

Target at below P25 for all trials

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 21, 2011

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 24, 2011

Completed
2 months until next milestone

Study Start

First participant enrolled

November 1, 2011

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2012

Completed
Last Updated

December 2, 2014

Status Verified

December 1, 2014

Enrollment Period

3 months

First QC Date

August 21, 2011

Last Update Submit

December 1, 2014

Conditions

Outcome Measures

Primary Outcomes (1)

  • change of retinal nerve fiber layer thickness

    study was terminated

    6 months

Study Arms (1)

Trabeculectomy RNFL thickness OCT

Procedure: spectral domain optical coherence tomography

Interventions

RNFL thickness measurement using spectral domain optical coherence tomography at baseline, 1, 3 and 6 months postoperatively.

Trabeculectomy RNFL thickness OCT

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

glaucoma patients

You may qualify if:

  • primary or secondary open angle glaucoma
  • target intraocular pressure under medical treatment was not reached
  • progression of visual loss
  • best corrected visual acuity of 20/100 or more
  • spherical equivalent refraction of -8.0 to +4.0 D
  • perimetry: less than 20% false positive answers

You may not qualify if:

  • primary or secondary angle closure glaucoma
  • congenital glaucoma
  • normal tension glaucoma
  • neovascular glaucoma

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Eye Hospital Wuerzburg

Würzburg, Bavaria, 97080, Germany

Location

MeSH Terms

Conditions

Optic Nerve Diseases

Condition Hierarchy (Ancestors)

Cranial Nerve DiseasesNervous System DiseasesEye Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Dr.

Study Record Dates

First Submitted

August 21, 2011

First Posted

August 24, 2011

Study Start

November 1, 2011

Primary Completion

February 1, 2012

Last Updated

December 2, 2014

Record last verified: 2014-12

Locations