A Clinical Study Comparing the Inflammatory Response of the Ex-Press Mini Shunt to Trabeculectomy

NCT ID: NCT00597181

Last Updated: 2010-09-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE4

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-11-30

Study Completion Date

2010-08-31

Brief Summary

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The less invasive nature of the Ex-Press Mini shunt with mitomycin C induces less post-operative inflammation than trabeculectomy with mitomycin c.

Detailed Description

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The purpose of this study is to quantify the degree of post-operative inflammation in eyes which have undergone either trabeculectomy filtering surgery or Ex-Press mini shunt insertion. Early intraocular pressure control and postoperative complications will also be noted.

Conditions

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Glaucoma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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1

Trabeculectomy with Mitomycin C 0.2 mg/cc for 2 minutes

Group Type ACTIVE_COMPARATOR

Trabeculectomy with mitomycin c

Intervention Type PROCEDURE

mitomycin c 0.2 mg/cc for 2 minutes

2

Ex-Press mini shunt; Model R50 with mitomycin C 0.2 mg/cc for 2 minutes

Group Type ACTIVE_COMPARATOR

Ex-Press mini shunt with mitomycin c

Intervention Type PROCEDURE

mitomycin c 0.2 mg/cc for 2 minutes

Interventions

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Trabeculectomy with mitomycin c

mitomycin c 0.2 mg/cc for 2 minutes

Intervention Type PROCEDURE

Ex-Press mini shunt with mitomycin c

mitomycin c 0.2 mg/cc for 2 minutes

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

All subjects must:

1. Be willing and able to provide written Informed Consent.
2. Be able and willing to follow instructions on the use of post- operative medication and likely to complete the entire course of the study.
3. Be male or female of any race at least 18 years of age.
4. Have medically uncontrolled glaucoma for which they have elected to undergo surgery.
5. Diagnosed with primary open angle glaucoma, pigmentary or pseudoexfoliation glaucoma.

Exclusion Criteria

No subject may:

1. Have any contraindication to intraocular surgery.
2. Diagnosed with: primary angle closure glaucoma, normal tension glaucoma, secondary glaucoma, neovascular glaucoma.
3. Have any active ocular disease other than glaucoma that would interfere with study parameters (such as: uveitis, ocular infection, or severe dry eye). Subjects with mild chronic blepharitis, age-related macular degeneration and background diabetic retinopathy may be enrolled at the discretion of the investigator.
4. Have laser ALT or SLT within the past 3 months or cataract surgery within the last six months.
5. Require use of ocular NSAID or systemic steroids.
6. Have known allergy or sensitivity to mitomycin C
7. Have corneal abnormalities that would interfere with the ability to obtain an adequate laser flare measurement.
8. Be concurrently enrolled in an investigational drug or device study or participation within the last 30 days in any investigational drug or device study.
9. Be pregnant, nursing, planning a pregnancy, or be of childbearing potential and not using a reliable form of contraception (a woman is considered of childbearing potential unless she is postmenopausal, has had a uterus and/or both ovaries removed, or has had a bilateral tubal ligation).
10. Have a situation or condition that in the investigator's opinion may put the subject at significant risk, may confound the study results, or may interfere significantly with participation in the study.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Optonol

UNKNOWN

Sponsor Role collaborator

Indiana University

OTHER

Sponsor Role lead

Responsible Party

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Indiana University

Principal Investigators

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Louis B Cantor, MD

Role: PRINCIPAL_INVESTIGATOR

Indiana University School of Medicine

Locations

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IU Eye at Carmel

Indianapolis, Indiana, United States

Site Status

Countries

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United States

References

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Hille K, Hans J, Manderscheid T, Spang S, Ruprecht KW. [Laser flare in combined cataract and glaucoma surgery]. Ophthalmologe. 2001 Jan;98(1):47-53. doi: 10.1007/s003470170199. German.

Reference Type BACKGROUND
PMID: 11220271 (View on PubMed)

Maris PJ Jr, Ishida K, Netland PA. Comparison of trabeculectomy with Ex-PRESS miniature glaucoma device implanted under scleral flap. J Glaucoma. 2007 Jan;16(1):14-9. doi: 10.1097/01.ijg.0000243479.90403.cd.

Reference Type BACKGROUND
PMID: 17224744 (View on PubMed)

Shah SM, Spalton DJ, Allen RJ, Smith SE. A comparison of the laser flare cell meter and fluorophotometry in assessment of the blood-aqueous barrier. Invest Ophthalmol Vis Sci. 1993 Oct;34(11):3124-30.

Reference Type BACKGROUND
PMID: 8407220 (View on PubMed)

Dahan E, Carmichael TR. Implantation of a miniature glaucoma device under a scleral flap. J Glaucoma. 2005 Apr;14(2):98-102. doi: 10.1097/01.ijg.0000151688.34904.b7.

Reference Type BACKGROUND
PMID: 15741808 (View on PubMed)

Shields, MB Textbook of Glaucoma. Fourth Edition; Williams & Wilkins, Baltimore, 1998.

Reference Type BACKGROUND

Guyer DR, Yannuzzi LA, Chang S, Shields JA, Green WR Retina-Vitreous-Macula. W.B. Saunders Company, Philadelphia, 1999.

Reference Type BACKGROUND

Other Identifiers

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0710-28

Identifier Type: -

Identifier Source: org_study_id