GlaucomaNCT02988752
Comparison Between an Electronic Mobile Device and Optical Coherence Tomography to Determine Cup-to-disc Ratio
A study testing Electronic Mobile Device and Optical Coherence Tomography in people with Glaucoma, run by Clinica Oftamologica Zona Sul at 1 site in Brazil.
Trial summary
This study was a non-inferiority trial with masked data analysis. Individuals ranging from 18 to 60 years from both genders that met the pre-defined criteria were included. This study was carried out in Recife at Clinica Oftalmologica Zona Sul and at Centro de Informatica-UFPE. Read more about this study
- Who is it for?
- Ages 18 to 60 yearsHealthy volunteers can take part
- Conditions the study is for
- Glaucoma
- What is being tested?
- Electronic Mobile Device and Optical Coherence Tomography
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 110 participants
- Where
- 1 siteBrazil
- Study dates
- Oct 2016to Nov 2017
- 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 to 60 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Anyone from 18 to 60 Years old without any of the Specified Exclusion Criteria.
Who cannot join
- Cancer
- Cataract
- Eyes transparency loss
- Best Av < 0.4
- Eye surgery in the last 12 Months
- Use of drugs that leads to any kind of Neuropathy
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Comparison Between an Electronic Mobile Device(DEM) and Optical Coherence Tomography (OCT) to Determine Cup-to-disc Ratio (C/D) Through a Non-inferiority Trial With Masked Data Analysis
This study was a non-inferiority trial with masked data analysis. Individuals ranging from 18 to 60 years from both genders that met the pre-defined criteria were included. This study was carried out in Recife at Clinica Oftalmologica Zona Sul and at Centro de Informatica-UFPE. Using both equipment, 5 vertical cup-to-disc ratio (VCDR) evaluations were performed for each eye of the individuals, under midriatic conditions. Evaluations were done by examiners who did not know previously results obtained from other equipment. Data was collected by the main researcher of this research. This study was approved by the ethics committee before it started and all research members signed the TCLE agreement. The statistical test employed in this study was Pearson Correlation test.
Read the detailed description
Glaucoma is the second major cause of blindness in the world, lagging only behind cataract. However, unlike cataract, blindness caused by glaucoma is irreversible. Early diagnosis of the disease and progression monitoring is thus essential for proper treatment in order to avoid irreversible blindness. The most common screening exam for glaucoma diagnosis and monitoring is the eye fundus evaluation where Cup-to-Disc ratio (CDR) among other parameters are assessed. This kind of evaluation is performed by ophthalmologists based on their visual perception, requiring not only specific training but also some significant amount of time of eye examination.Objective measurement of CDR involves high cost equipment which in turn requires some specific training in order to use them. Currently, the Optical Coherence Tomography is used as the gold standard for CDR measurement. An OCT exam uses a high cost and complex equipment that most of the time is not affordable for low-income people. This study proposes a portable electronic device that captures eye fundus images, analyzes these images, performs CDR calculation and allows storing these images for further analysis. This low cost and portable device was developed to be used in several health services (public or private) and has low energy consumption, easing its mobility. Moreover, using this device is easy, not requiring any significant learning effort from ophthalmologists. In developing countries where screening programs for early diagnosis of glaucomatous neuropathy are adopted, an ever-growing number of researchers are putting a significant amount of effort to develop cost-benefit solutions that can reach low-income people and remote areas.
Objective: This study compared CDR measurements from the portable electronic device (PED) developed by Centro de Informatica da Universidade Federal de Pernambuco to CDR measurements provided by OCT.
Methods:This study was a non-inferiority trial with masked data analysis. Individuals ranging from 18 to 60 years from both genders that met the pre-defined criteria were included. This study was carried out in Recife at Clinica Oftalmologica Zona Sul and at Centro de Informatica-UFPE. Using both equipment, 5 vertical cup-to-disc ratio (VCDR) evaluations were performed for each eye of the individuals, under midriatic conditions. Evaluations were done by examiners who did not know previously results obtained from other equipment. Data was collected by the main researcher of this research. This study was approved by the ethics committee before it started and all research members signed the TCLE agreement. The statistical test employed in this study was Pearson Correlation test.
- Conditions
- Glaucoma
- Being tested
- Electronic Mobile Device, Optical Coherence Tomography
- Medical subject headings
- Glaucoma
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Electronic Mobile DeviceDevice
Measure C/D Ratio With An Equipment Attached To A Ophthalmoscope That Will Determine C/D Ratio Without Touching Patient's Eyes. To Perform It We Need Mydriatic Conditions.
Optical Coherence TomographyDevice
Also called OCT
Measure C/D Ratio With OCT, Considered Gold Standard Equipment
| Study group | Role | What they receive |
|---|---|---|
| Electronic Mobile Device | Experimental | Use an Electronic Low Cost Mobile Device To Determine C/D Ratio And Compare Results With Gold Standard Optical Coherence Tomography Results. The equipment needs mydriatic conditions and does not touch the patient's eye. The equipment uses a panoptik and a camera to access eye fundus. Receives: Device: Electronic Mobile Device |
| Optical Coherence Tomography | Active comparator | Device considered as gold standard to determine c/d ratio. Needs mydriatic conditions. Receives: Device: Optical Coherence Tomography |
What is being measured
The primary outcome is the main question the study is designed to answer.
Objective C/D Ratio measure
To measure vertical cup to disc ratio in an objective way
Measured: One Year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Dec 2016 (estimated)
- Study startOct 2016
- Primary completionNov 2016
- Study completionNov 2017 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Diagnosis
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- Single blind
- Who is masked
- Investigator
- Enrolment
- 110 participants (actual)
Sponsor and investigators
- Lead sponsor
- Clinica Oftamologica Zona Sul
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Andrea Gondim Leitao Sarmento, Clinica Oftamologica Zona Sul
- Investigators
- ANDREA SARMENTO, Principal investigator, COZ
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02988752
- Sponsor's protocol ID
- COZ001
- Status last verified
- Dec 2016
- First submitted
- 2 Jun 2016
- Last updated
- 9 Dec 2016
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 9 Dec 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison Between an Electronic Mobile Device(DEM) and Optical Coherence Tomography (OCT) to Determine Cup-to-disc Ratio (C/D) Through a Non-inferiority Trial With Masked Data Analysis
- ClinicalTrials.gov ID
- NCT02988752
- Acronym / sponsor ID
- COZ001
- Conditions
- Glaucoma
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 110 participants (actual)
- Lead sponsor
- Clinica Oftamologica Zona SulUniversity, hospital or other
- Study start
- Oct 2016
- Primary completion
- Nov 2016 (actual)
- Study completion
- Nov 2017 (estimated)
- First posted
- 9 Dec 2016 (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.
This study was a non-inferiority trial with masked data analysis. Individuals ranging from 18 to 60 years from both genders that met the pre-defined criteria were included. This study was carried out in Recife at Clinica Oftalmologica Zona Sul and at Centro de Informatica-UFPE. Using both equipment, 5 vertical cup-to-disc ratio (VCDR) evaluations were performed for each eye of the individuals, under midriatic conditions. Evaluations were done by examiners who did not know previously results obtained from other equipment. Data was collected by the main researcher of this research. This study was approved by the ethics committee before it started and all research members signed the TCLE agreement. The statistical test employed in this study was Pearson Correlation test.
Detailed description
Glaucoma is the second major cause of blindness in the world, lagging only behind cataract. However, unlike cataract, blindness caused by glaucoma is irreversible. Early diagnosis of the disease and progression monitoring is thus essential for proper treatment in order to avoid irreversible blindness. The most common screening exam for glaucoma diagnosis and monitoring is the eye fundus evaluation where Cup-to-Disc ratio (CDR) among other parameters are assessed. This kind of evaluation is performed by ophthalmologists based on their visual perception, requiring not only specific training but also some significant amount of time of eye examination.Objective measurement of CDR involves high cost equipment which in turn requires some specific training in order to use them. Currently, the Optical Coherence Tomography is used as the gold standard for CDR measurement. An OCT exam uses a high cost and complex equipment that most of the time is not affordable for low-income people. This study proposes a portable electronic device that captures eye fundus images, analyzes these images, performs CDR calculation and allows storing these images for further analysis. This low cost and portable device was developed to be used in several health services (public or private) and has low energy consumption, easing its mobility. Moreover, using this device is easy, not requiring any significant learning effort from ophthalmologists. In developing countries where screening programs for early diagnosis of glaucomatous neuropathy are adopted, an ever-growing number of researchers are putting a significant amount of effort to develop cost-benefit solutions that can reach low-income people and remote areas.
Objective: This study compared CDR measurements from the portable electronic device (PED) developed by Centro de Informatica da Universidade Federal de Pernambuco to CDR measurements provided by OCT.
Methods:This study was a non-inferiority trial with masked data analysis. Individuals ranging from 18 to 60 years from both genders that met the pre-defined criteria were included. This study was carried out in Recife at Clinica Oftalmologica Zona Sul and at Centro de Informatica-UFPE. Using both equipment, 5 vertical cup-to-disc ratio (VCDR) evaluations were performed for each eye of the individuals, under midriatic conditions. Evaluations were done by examiners who did not know previously results obtained from other equipment. Data was collected by the main researcher of this research. This study was approved by the ethics committee before it started and all research members signed the TCLE agreement. The statistical test employed in this study was Pearson Correlation test.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- Single blind (investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Electronic Mobile Device | Experimental | Device: Electronic Mobile DeviceUse an Electronic Low Cost Mobile Device To Determine C/D Ratio And Compare Results With Gold Standard Optical Coherence Tomography Results. The equipment needs mydriatic conditions and does not touch the patient's eye. The equipment uses a panoptik and a camera to access eye fundus. |
| Optical Coherence Tomography | Active comparator | Device: Optical Coherence TomographyDevice considered as gold standard to determine c/d ratio. Needs mydriatic conditions. |
Who may qualify
- Ages
- 18 to 60 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- Anyone from 18 to 60 Years old without any of the Specified Exclusion Criteria.
Key exclusion criteria (6 listed)
- Cancer
- Cataract
- Eyes transparency loss
- Best Av < 0.4
- Eye surgery in the last 12 Months
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 |
|---|---|---|
| Electronic Mobile DeviceMeasure C/D Ratio With An Equipment Attached To A Ophthalmoscope That Will Determine C/D Ratio Without Touching Patient's Eyes. To Perform It We Need Mydriatic Conditions. | Device | Electronic Mobile Device |
| Optical Coherence TomographyAlso: OCTMeasure C/D Ratio With OCT, Considered Gold Standard Equipment | Device | Optical Coherence Tomography |
Primary outcome
Objective C/D Ratio measure
Time frame: One Year
To measure vertical cup to disc ratio in an objective way
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Dec 2016.
- Individual participant dataSharing planned: No
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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.
ANDREA SARMENTO principal investigator
COZ
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Electronic Mobile Device and Optical Coherence Tomography in people with Glaucoma, run by Clinica Oftamologica Zona Sul at 1 site in Brazil.
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 1 inclusion and 6 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 9 Dec 2016. 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 Brazil. 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?
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?
Objective C/D Ratio measure (time frame: One 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 9 Dec 2016; AzTrials last refreshed its copy on 30 Oct 2026.