Effect of Fixed Brinzolamide-brimonidine Combination on Intraocular Pressure After Phacoemulsification

NCT ID: NCT03494257

Last Updated: 2018-04-11

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

COMPLETED

Clinical Phase

NA

Total Enrollment

62 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-09-04

Study Completion Date

2018-04-06

Brief Summary

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This study aims to evaluate the effect of fixed brinzolamide-brimonidine combination on intaocular pressure after uncomplicated phacoemulsification surgery.

Patients scheduled for phacoemulsification will be randomly assigned to 1 of 2 groups.

The treatment group will receive 1 drop of brimonidine-brinzolamide fixed combination immediately after surgery, and the control group will receive no treatment. The IOP will be measured preoperatively and at 6, 12, and 24 hours postoperatively.

Detailed Description

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Phacoemulsification with the use of an ophthalmic viscosurgical device (OVD) and implantation of a foldable intraocular lens (IOL) is the preferred technique for cataract surgery today.

OVDs in spite of their advantages in phacoemulsification surgery, have been correlated with intraocular pressure (IOP) increase within the first 24 hours postoperatively. This constitutes a frequent short-term complication of cataract surgery and can lead to corneal edema and pain. This IOP rise may also increase the risk of retinal artery occlusion, ischemic optic neuropathy, and deterioration of preexisting glaucomatous nerve damage.

DuoVisc, an OVD that consists of Viscoat (chondroitin sulfate 4.0%-sodium hyaluronate 3.0%) in combination with Provisc (sodium hyaluronate 1.0%) is the most frequently used OVD during cataract surgery.

To prevent IOP spikes postoperatively, various antiglaucoma agents have been used. Brinzolamide is a carbonic anhydrase inhibitor that acts upon the ciliary processes and reduces aqueous humor secretion.Brimonidine is a highly selective a2-adrenergic agonist that increases uveoscleral outflow and reduces aqueous humor production.

Conditions

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Cataract Intraocular Pressure

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Prospective randomized double-masked comparative study
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators
Patients will be unaware of their groupe assignment. The investigator who will measure the IOP will also be masked to group assignment.

Study Groups

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Brinzolamide-Brimonidine fixed combination

1 drop of the brinzolamide-brimonidine fixed combination instilled in the patients cul de sac immediately after surgery

Group Type ACTIVE_COMPARATOR

Brinzolamide-Brimonidine fixed combination

Intervention Type DRUG

Simbrinza 0.2%-1% Ophthalmic Suspension

No topical IOP reducing medication

No IOP reducing drops instilled after surgery

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Brinzolamide-Brimonidine fixed combination

Simbrinza 0.2%-1% Ophthalmic Suspension

Intervention Type DRUG

Other Intervention Names

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Simbrinza, 0.2%-1% Ophthalmic Suspension

Eligibility Criteria

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Inclusion Criteria

* Patients scheduled to undergo cataract surgery by phacoemulsification.

Exclusion Criteria

* previous ocular surgery
* ocular hypertension
* pseudoexfoliation syndrome
* pigment dispersion syndrome
* glaucoma
* history of severe cardiovascular disease, cerebral or coronary insufficiency, depression, Raynaud's phenomenon, orthostatic hypotension or thromboangiitis obliterans
* hypersensitivity to sulfonamides or brimonidine
Minimum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital of Patras

OTHER

Sponsor Role lead

Responsible Party

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Constantinos D. Georgakopoulos, MD, PhD

Associate Professor in Ophthalmology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Constantine Georgakopoulos, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Medical School, University of Patras, Greece

Locations

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University Hospital of Patras

Pátrai, Achaia, Greece

Site Status

Countries

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Greece

Other Identifiers

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58/15.02.2018/5104

Identifier Type: -

Identifier Source: org_study_id

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