Additivity Study: Additive Effect on Eye Pressure of Azopt and Alphagan P to Travatan

Hermann Eye Center

Status

Completed

Conditions

Pseudoexfoliation Syndrome

Open Angle Glaucoma

Ocular Hypertension

Treatments

Drug: Alphagan P

Drug: Azopt

Drug: Travatan

Study type

Interventional

Funder types

Other

Industry

Identifiers

NCT00121147

HEF-042

Details and patient eligibility

About

The purpose of this study is to compare the additive effect on eye pressure of Azopt and Alphagan P to Travatan.

Full description

The purpose of this research study is to compare the effect on the pressure inside the eye when Brinzolamide Ophthalmic Suspension, 1% (Azopt), a carbonic anhydrase inhibitor, and Brimonidine Tartrate Ophthalmic Solution, 0.15% (Alphagan-P), an alpha 2 agonist, are added to Travoprost Ophthalmic Solution, 0.004% (Travatan), a prostaglandin, in patients with primary open angle glaucoma, ocular hypertension and pseudoexfoliation syndrome. Brinzolamide Ophthalmic Suspension, 1% (Azopt), Brimonidine Tartrate Ophthalmic Solution, 0.15% (Alphagan-P), and Travoprost Ophthalmic Solution, 0.004% (Travatan) are all currently approved by the FDA and on the market, being used by patients. Even though all three medications are currently approved for the purpose of the study they will be considered study medicines.

Glaucoma, Ocular Hypertension and Pseudoexfoliation syndrome have been treated with IOP-lowering medications or surgery to lower the pressure inside the eye to reduce the risk of visual field loss. Today, common treatments for a patient often begins with the prescription of a prostaglandin (Travoprost). If the prostaglandin does not lower the pressure inside the eye enough, a second drug is usually added. Topical carbonic anhydrase inhibitors (Brinzolamide) and alpha 2 agonists (Brimonidine) are common choices as additive medicines.

Sex

All

Ages

35+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

Minimum age: 35 years
Uni or bilateral primary open angle glaucoma, ocular hypertension or pseudoexfoliation syndrome (POAG is defined as having VF and optic nerve changes consistent with glaucomatous disease)
Insufficient response to monotherapy: defined as IOP > 18mm Hg (mean diurnal) and less than 32 mm Hg on Travatan at baseline
Informed consent and HIPPA consent obtained at screening visit prior to any study events
Ability to adhere to study treatment visit plan

Exclusion criteria

Closed, occluded, or potentially occludable angle
History of angle closure
Previous intraocular surgery, except uncomplicated clear cornea phacoemulsification or argon laser trabeculoplasty
Argon laser trabeculoplasty or phacoemulsification within the last 3 months
Central corneal thickness outside the 500 - 600 (inclusive) micron range as measured by ultrasonic pachymetry
Ocular or periocular inflammation within 3 months prior to study (except blepharitis related or seasonal allergic conjunctivitis)
History of uveitis or previous intraocular inflammation (other than post-operatively)
Hypersensitivity to sulfa, alpha agonists or benzalkonium chloride
History of use of any steroids for over 1 week within 3 months of screening or likely need for any corticosteroids during the study (except inhaled, nasal or topical non-ocular)
Use of systemic medications known to effect IOP (e.g. Alpha agonists, Beta blockers, Ace inhibitors and angiotensin II receptor blockers) which have not been stable for three months prior to baseline and the dosage is not expected to change during the course of the study

Women

Pregnancy (study medications have been determined to cause possible harm to the fetus)
Women of childbearing potential who are not using contraceptive methods. Childbearing potential is defined as any woman who is not postmenopausal (12 months without a menstrual period) or surgically sterile. Contraceptive methods are defined as abstinence, having a vasectomized partner, or ongoing use of approved oral, injectable, topical or implanted contraceptives, a barrier method or an IUD

General: