Absorption of Brimonidine Ophthalmic Solution in the Aqueous Humor of Cataract Patients

NCT ID: NCT00352807

Last Updated: 2007-10-17

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

COMPLETED

Clinical Phase

NA

Total Enrollment

22 participants

Study Classification

INTERVENTIONAL

Study Start Date

2005-02-28

Study Completion Date

2005-12-31

Brief Summary

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The purpose of this study is to obtain and assay human aqueous samples following pre-operative dosing with 0.1% Brimonidine Purite™ (pH 7.8) or with 0.15% Brimonidine Purite® (pH 7.2) from patients undergoing routine cataract surgery in order to evaluate the aqueous concentration of the two formulations.Study hypothesis: The aqueous humor concentration 45 minutes following dosing of 0.1% Brimonidine Purite™ (pH 7.8) is comparable with 0.15% Brimonidine Purite® (pH 7.2)

Detailed Description

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The purpose of this study is to obtain and assay human aqueous samples following pre-operative dosing with 0.1% Brimonidine Purite™ (pH 7.8) or with 0.15% Brimonidine Purite® (pH 7.2) from patients undergoing routine cataract surgery in order to evaluate the aqueous concentration of the two formulations.

Conditions

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Cataract

Keywords

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Cataract

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Interventions

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Brimonidine Purite

Intervention Type DRUG

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 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 visually significant cataract for which they have elected to undergo cataract surgery.

Exclusion Criteria

* No subject may:

1. Known allergy or sensitivity to the study medication or its components
2. Contraindications to brimonidine therapy: concurrent use of monoamine oxidase (MAO) inhibitor therapy
3. Have any active ocular disease other than glaucoma or ocular hypertension that would interfere with study parameters (such as: uveitis, ocular infection, or severe dry eye). Patients with mild chronic blepharitis, age-related macular degeneration, background diabetic retinopathy may be enrolled at the discretion of the investigator.
4. Any ocular surgery (including laser, refractive, intraocular filtering surgery, or any other ocular surgery) within 3 months.
5. Require use of ocular medications (including glaucoma medications), except intermittent use of artificial tears.
6. Have corneal abnormalities that would interfere with the ability to obtain an adequate sample safely or have a shallow anterior chamber which would make obtaining an aqueous sample difficult at the time of surgery in the opinion of the investigator.
7. Be concurrently enrolled in an investigational drug or device study or participation within the last 30 days in any investigational drug or device study.
8. Be pregnant, nursing, planning a pregnancy, or be of childbearing potential and not using a reliable form of contraception.
9. 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 such as, significant cardiovascular disease, hepatic or renal impairment, depression, Raynaud's, orthostatic hypotension; uncontrolled high blood pressure. or concomitant use of other potential CNS depressants and tricyclics, (Amendment 1, May 25, 2005)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Allergan

INDUSTRY

Sponsor Role collaborator

Indiana University School of Medicine

OTHER

Sponsor Role lead

Principal Investigators

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Louis B Cantor, MD

Role: PRINCIPAL_INVESTIGATOR

IUPUI/Clarian

Locations

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University Hospital

Indianapolis, Indiana, United States

Site Status

Veterans Affairs Medical Center

Indianapolis, Indiana, United States

Site Status

Wishard Memorial Hospital

Indianapolis, Indiana, United States

Site Status

Iu Eye at Carmel

Indianapolis, Indiana, United States

Site Status

Countries

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United States

References

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PK-02-P027 Relative ocular bioavailability of 0.2% Alphagan and 0.15% Brimonidine-BAK to that of 0.15% Alphagan P in female albino rabbits. Allergan 2002.

Reference Type BACKGROUND

PK-02-P041 Comparison of ocular and systemic bioavailability of three 0.10% brimonidine purite formulations to that of 0.15% Alphagan P in albino rabbits. Allergan 2002.

Reference Type BACKGROUND

Other Identifiers

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0501-45

Identifier Type: -

Identifier Source: org_study_id