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AzTrials

Coronary Artery DiseaseNCT05199428

Optina Eye to Heart Connection

An observational study of Coronary Artery Disease, run by Optina Diagnostics Inc. at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a prospective cross-sectional, single-center retinal imaging study expecting to enroll approximately 400 male and female subjects ≥ 18 years of age. Subjects having undergone clinically-indicated coronary angiography or coronary computed tomography angiography (CCTA) within one month of consent at the Montreal… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Coronary Artery Disease
How many people
308 participants
Where
1 siteCanada
Study dates
15 Jun 2022to 22 Mar 2024
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: A sample size of 400 (280 CAD and 120 control) subjects was chosen to allow for the estimation of the sensitivity and specificity of classification models with an acceptable precision, the latter defined as the corresponding 95% confidence intervals. Subjects having undergone clinically-indicated invasive coronary angiography or coronary computed tomography angiography (CCTA) within one month of signed consent will be screened for inclusion in the study.

Who may be able to join

  • Ability and willingness to give written informed consent
  • Age 18 years or older at the time of informed consent
  • Stable (non-emergent) typical or atypical symptoms suspicious for CAD (e.g., chest pain, chest tightness, chest burning, shoulder pain, palpitations, jaw pain, or non-chest pain symptoms such as dyspnea or worsening effort tolerance.
  • Patients having undergone clinically-indicated invasive coronary angiography or coronary computed tomography angiography within one month before consent signature

Who cannot join

  • At Screening Visit 1:
  • Asymptomatic subjects
  • Previous coronary revascularization (e.g., coronary artery bypass graft surgery, stenting)
  • Subjects being evaluated for other cardiac diseases (e.g., valvular disease, cardiomyopathy)
  • Pregnant or breastfeeding women
  • At Study Visit 2 or Ocular Exclusion Criteria:
Show all 12Show fewer
  • Medium or high opacity of the lens
  • Bleeding in vitreous
  • Pupillary dilation inadequate or contraindicated
  • Deficient visual fixation
  • Refractive error outside of the range -15 to +15
  • Inability to obtain satisfactory images with the MHRC

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Montreal heart institute

    Montreal, Quebec

Other trials in Canada

About this study

Official title: Use of a Deep Phenotyping Platform to Develop a Novel Retinal Imaging Test for Coronary Artery Disease: A Prospective Cross-Sectional Study

This is a prospective cross-sectional, single-center retinal imaging study expecting to enroll approximately 400 male and female subjects ≥ 18 years of age. Subjects having undergone clinically-indicated coronary angiography or coronary computed tomography angiography (CCTA) within one month of consent at the Montreal Heart Institute (MHI) will be screened for inclusion in the study.

Read the detailed description

This is a prospective cross-sectional, single-center retinal imaging study expecting to enroll aproximately 400 (280 CAD and 120 control) male and female subjects ≥ 18 years of age. Subjects having undergone clinically-indicated invasive coronary angiography or coronary computed tomography angiography (CCTA) within one month of signed consent will be screened for inclusion in the study.

Subjects will be recruited at the Montreal Heart Institute (MHI). During the screening visit, the investigator will review inclusion/exclusion criteria and the following information will be collected: demographic data including age and sex, relevant medical history including risk factors (hypertension, diabetes, dyslipidemia, smoking and obesity), history of CAD, concomitant cardiovascular medications and laboratory tests (lipid profile, fasting glucose) Subjects who provide written informed consent will undergo cognitive evaluation and an ophthalmic examination to identify any ocular exclusion criteria. All eligible subjects will then undergo hyperspectral retinal imaging using a Metabolic Hyperspectral Retinal Camera (MHRC)

Safety will be assessed through reporting of serious adverse events (SAEs) related to retinal imaging procedures.

Medical subject headings
Coronary Artery Disease

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Sensitivity and specificity of a pre-specified classification model based on retinal imaging parameters

    Sensitivity and specificity of a pre-specified classification model based on retinal imaging parameters to discriminate between control subjects and subjects with CAD (defined as stenosis in at least one epicardial vessel of 50% or greater) as assessed by coronary angiography.

    Measured: 1.5 year

Secondary outcomes (5)
  1. Correlation between retinal imaging parameters and the number of vessels with a stenosis of 50% or greater as assessed by coronary angiography.

    Measured: 1.5 year

  2. Correlation between retinal imaging parameters and the maximal severity of coronary artery stenosis as assessed by coronary angiography.

    Measured: 1.5 year

  3. Sensitivity and specificity of new classification models based on retinal imaging parameters

    Sensitivity and specificity of new classification models based on retinal imaging parameters to discriminate between control subjects and subjects with CAD (defined as stenosis in at least one epicardial vessel of 50% or greater) as assessed by coronary angiography.

    Measured: 1.5 year

  4. Correlation between retinal imaging parameters and cognitive scores on the Montreal Cognitive Assessment (MoCA) and executive tasks

    Measured: 1.5 year

  5. Sensitivity and specificity, among CAD subjects, of a pre-specified classification model, as well as new classification models

    Sensitivity and specificity, among CAD subjects, of a pre-specified classification model, as well as of new classification models, based on retinal imaging parameters to discriminate between subjects with less severe CAD (less vessels with a stenosis of 50% or greater) and subjects with more severe CAD (more vessels with a stenosis of 50% or greater) as assessed by coronary angiography.

    Measured: 1.5 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Jan 2022
  2. Study start15 Jun 2022
  3. Primary completion22 Mar 2024
  4. Study completion22 Mar 2024

Resources

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
Cross-sectional
Enrolment
308 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05199428
Sponsor's protocol ID
DOC100469
Status last verified
May 2024
First submitted
20 Dec 2021
Last updated
23 May 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Coronary Artery Disease, run by Optina Diagnostics Inc. at 1 site in Canada.

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 4 inclusion and 12 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 23 May 2024. 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 Canada. 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?

Sensitivity and specificity of a pre-specified classification model based on retinal imaging parameters (time frame: 1.5 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 23 May 2024.

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