Chronic Angle Closure GlaucomaNCT00823706
Prevalence of Angle Closure in Caucasian Hyperopes
An observational study of Chronic Angle Closure Glaucoma, run by Assaf-Harofeh Medical Center at 1 site in Israel.
Trial summary
The primary purpose of this study is to assess the prevalence of asymptomatic chronic angle closure in high risk Caucasian individuals, namely those with hyperopia. A secondary purpose is to assess whether specific demographic or ocular-anatomic parameters in this population are associated with a higher risk for angle… Read more about this study
- Who is it for?
- Ages 40 years and older
- Conditions the study is for
- Chronic Angle Closure Glaucoma
- How many people
- 100 participants
- Where
- 1 siteIsrael
- Study dates
- Jan 2009to not given
- Phase
- Observational
- 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 40 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Caucasian subjects aged 40 years or more with hyperopia
Who may be able to join
- Age greater than 40 years
- Hyperopia greater then +1.00 D spherical equivalent
Who cannot join
- Any identifiable eye disease or previous eye surgery that can affect the anatomy of the irido-corneal angle
Trial locations and contacts
1 site in 1 country.
Israel1 site, 1 recruiting
- Recruiting
Assaf Harofe Medical Center Ophthalmology Department
Tsrifin, 70300
Yaniv Barkana, yanivbarkana@gmail.com
About this study
Official title: Prevalence of Chronic Angle Closure in Caucasian Hyperopic Subjects
The primary purpose of this study is to assess the prevalence of asymptomatic chronic angle closure in high risk Caucasian individuals, namely those with hyperopia. A secondary purpose is to assess whether specific demographic or ocular-anatomic parameters in this population are associated with a higher risk for angle closure.
Read the detailed description
Caucasian subjects aged > 40 years with hyperopia will undergo complete eye examination including subjective refraction and gonioscopy. In addition we will measure axial length, anterior chamber depth and lens thickness using ultrasound biometry.
- Conditions
- Chronic Angle Closure Glaucoma
- Keywords
- chronic angle closure hyperopia
What is being measured
The primary outcome is the main question the study is designed to answer.
prevalence of chronic angle closure in Caucasian hyperopes
Measured: 1 year
Secondary outcomes (1)
relative risk for chronic angle closure measured for demographic and ocular-anatomic parameters
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Jan 2009 (estimated)
- Study startJan 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Chronic Angle Closure GlaucomaStudies of the same condition, open and under way.
- 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
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Assaf-Harofeh Medical Center
- Sponsor type
- Other government
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00823706
- Sponsor's protocol ID
- 122/08
- Status last verified
- Jan 2009
- First submitted
- 15 Jan 2009
- Last updated
- 5 Apr 2011
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 5 Apr 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Prevalence of Chronic Angle Closure in Caucasian Hyperopic Subjects
- ClinicalTrials.gov ID
- NCT00823706
- Acronym / sponsor ID
- 122/08
- Conditions
- Chronic Angle Closure Glaucoma
- Keywords
- chronic angle closure hyperopia
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Assaf-Harofeh Medical CenterOther government
- Study start
- Jan 2009
- First posted
- 16 Jan 2009 (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 primary purpose of this study is to assess the prevalence of asymptomatic chronic angle closure in high risk Caucasian individuals, namely those with hyperopia. A secondary purpose is to assess whether specific demographic or ocular-anatomic parameters in this population are associated with a higher risk for angle closure.
Detailed description
Caucasian subjects aged > 40 years with hyperopia will undergo complete eye examination including subjective refraction and gonioscopy. In addition we will measure axial length, anterior chamber depth and lens thickness using ultrasound biometry.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 40 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Caucasian subjects aged 40 years or more with hyperopia
Key inclusion criteria (2 listed)
- Age greater than 40 years
- Hyperopia greater then +1.00 D spherical equivalent
Key exclusion criteria (1 listed)
- Any identifiable eye disease or previous eye surgery that can affect the anatomy of the irido-corneal angle
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
prevalence of chronic angle closure in Caucasian hyperopes
Time frame: 1 year
1 secondary outcome
relative risk for chronic angle closure measured for demographic and ocular-anatomic parameters
Time frame: 1 year
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Apr 2011.
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Active, not recruitingObservational study
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Primary Open Angle Glaucoma, Pseudoexfoliative Glaucoma
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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Chronic Angle Closure Glaucoma, run by Assaf-Harofeh Medical Center at 1 site in Israel.
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 2 inclusion and 1 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: status not confirmed, as of the sponsor's last update on 5 Apr 2011. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Israel. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact yaniv barkana, md (97289779358, yanivbarkana@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
prevalence of chronic angle closure in Caucasian hyperopes (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 5 Apr 2011.