CataractNCT00352807
Absorption of Brimonidine Ophthalmic Solution in the Aqueous Humor of Cataract Patients
A study testing Brimonidine Purite in people with Cataract, run by Indiana University at 4 sites in United States.
Trial summary
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… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Cataract
- What is being tested?
- Brimonidine Purite
- How many people
- 22 participants
- Where
- 4 sitesUnited States
- Study dates
- Feb 2005to Dec 2005
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- All subjects must:
- Be willing and able to provide written Informed Consent
- Be able and willing to follow instructions and likely to complete the entire course of the study.
- Be male or female of any race at least 18 years of age.
- Have visually significant cataract for which they have elected to undergo cataract surgery.
Who cannot join
- No subject may:
- Known allergy or sensitivity to the study medication or its components
- Contraindications to brimonidine therapy: concurrent use of monoamine oxidase (MAO) inhibitor therapy
- 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.
- Any ocular surgery (including laser, refractive, intraocular filtering surgery, or any other ocular surgery) within 3 months.
- Require use of ocular medications (including glaucoma medications), except intermittent use of artificial tears.
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- 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.
- Be concurrently enrolled in an investigational drug or device study or participation within the last 30 days in any investigational drug or device study.
- Be pregnant, nursing, planning a pregnancy, or be of childbearing potential and not using a reliable form of contraception.
- 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)
Trial locations and contacts
4 sites in 1 country.
United States4 sites
University Hospital
Indianapolis, Indiana, 46202
Veterans Affairs Medical Center
Indianapolis, Indiana, 46202
Wishard Memorial Hospital
Indianapolis, Indiana, 46202
Iu Eye at Carmel
Indianapolis, Indiana, 46290
About this study
Official title: Absorption of Brimonidine Ophthalmic Solution in the Aqueous Humor of Cataract Patients.
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)
Read the detailed description
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
- Cataract
- Being tested
- Brimonidine Purite
- Keywords
- Cataract
- Medical subject headings
- Cataract
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Brimonidine PuriteDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
Bioanalysis of brimonidine concentrations.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Jul 2006 (estimated)
- Study startFeb 2005
- Study completionDec 2005
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for CataractStudies of the same condition, open and under way.
- More trials run by Indiana UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Enrolment
- 22 participants
Sponsor and investigators
- Lead sponsor
- Indiana University
- Sponsor type
- University, hospital or other
- Collaborators
- Allergan
- Investigators
- Louis B Cantor, MD, Principal investigator, IUPUI/Clarian
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00352807
- Sponsor's protocol ID
- 0501-45
- Status last verified
- Oct 2007
- First submitted
- 14 Jul 2006
- Last updated
- 17 Oct 2007
- Results posted
- No
Publications
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.
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.
Study at a glance
From the registry record, last updated by the sponsor on 17 Oct 2007. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Absorption of Brimonidine Ophthalmic Solution in the Aqueous Humor of Cataract Patients.
- ClinicalTrials.gov ID
- NCT00352807
- Acronym / sponsor ID
- 0501-45
- Conditions
- Cataract
- Keywords
- Cataract
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 22 participants
- Lead sponsor
- Indiana UniversityUniversity, hospital or other
- Collaborators
- Allergan
- Study start
- Feb 2005
- Study completion
- Dec 2005
- First posted
- 17 Jul 2006 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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
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 design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- All subjects must:
Key exclusion criteria (10 listed)
- No subject may:
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Brimonidine Purite | Drug | – |
Primary outcome
Bioanalysis of brimonidine concentrations.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Oct 2007.
- BackgroundPK-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.
- BackgroundPK-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.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Louis B Cantor, MD principal investigator
IUPUI/Clarian
4 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Brimonidine Purite in people with Cataract, run by Indiana University at 4 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 17 Oct 2007. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 4 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Bioanalysis of brimonidine concentrations.. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00352807, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Oct 2007.