- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01625598
Computer Detection of Diabetic Retinopathy Compared to Clinical Examination (CDDR)
April 21, 2014 updated by: IDx LLC
A Multicenter Masked Study to Compare Analysis of the Detection Program IDx-DR Against Standard of Care Clinical Examination by Ophthalmologists to Differentiate Levels of Diabetic Retinopathy and Diabetic Macular Edema
The hypothesis is that computer detection of the severity of diabetic retinopathy including the presence of clinically significant macular edema is not inferior to the detection using a dilated eye examination by a Board-certified ophthalmologist.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
The project is a multicenter, observational study to compare the accuracy of the IDX-DR computer detection system to board certified ophthalmologists performing dilated eye examination at identifying between no or mild NPDR without clinically significant diabetic macular edema from more than mild NPDR with or without CSDME.
Approximately 400-600 persons with diabetes will be recruited through 5 clinical centers.
The ophthalmologist who examines the patient will evaluate and record the status of the eye based on his/her clinical examination.
The study subjects will then have two fundus photographs taken of each eye.
The photographic images will be transferred to a central Reading Center at the University of Pennsylvania and interpreted by professional graders.
The Reading Center will then transfer the images to IDx-DR, the computer detection system.
IDx-LLC, the Sponsor of this study, will have no access to the images.
Data from the Reading Center interpretation will be considered the "gold standard".
The results of the clinical examination and IDX-DR will be compared against this gold standard as well as against each other.
Study Type
Observational
Enrollment (Actual)
600
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Arizona
-
Mesa, Arizona, United States, 85206
- Barnet Dulaney Perkins Eye Center
-
Phoenix, Arizona, United States, 85016
- Barnet Dulaney Perkins Eye Center
-
-
Iowa
-
Cedar Rapids, Iowa, United States, 52403
- Iowa Eye Center
-
Iowa City, Iowa, United States, 52242
- University of Iowa Department of Ophthalmology and Visual Sciences
-
-
Texas
-
Houston, Texas, United States, 77030
- Retina Consultants of Houston
-
Houston, Texas, United States, 77030
- Robert Cizik Eye Clinic - University of Texas Houston
-
Houston, Texas, United States, 77090
- Retina Consultants of Houston
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Probability Sample
Study Population
Persons with diabetes, eighteen years of age or older, who have been referred to an ophthalmologists for a dilated eye examination to detect diabetic retinopathy.
Description
Inclusion Criteria:
- a diagnosis of diabetes mellitus
- subject understands study and has signed informed consent
- no history of any other retinal vascular disease, glaucoma, or other disease that may affect the appearance of the retina or optic disc (refractive error and ocular surface disease are allowed);
- other than cataract surgery, no history of intraocular surgery, ocular laser treatments for any retinal disease, or ocular injections for diabetic macular edema or proliferative disease
- no media opacity precluding good retinal photography
- age 18 or older
Exclusion Criteria:
- no diagnosis of diabetes mellitus
- potential subject cannot understand study or informed consent
- a history of retinal vascular disease other than due to diabetic retinopathy, glaucoma, or other disease that may affect the appearance of the retina or optic disc
- previous intraocular surgery other than cataract; previous laser to the retina; or previous intraocular injections for the treatment of diabetic retinopathy
- a media opacity in either eye that is severe enough to preclude good retinal photography
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
People with diabetes
People with diabetes who are referred to an ophthalmologist for a dilated eye examination
|
Every subject will undergo photography of the retina in both eyes
Device Subjects will have photography of both eyes |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Sensitivity of detecting moderate non proliferative diabetic retinopathy or more severe DR and/or significant macular edema on a person-specific basis.
Time Frame: Recruitment over 4 months
|
If the interval excludes differences of 10% or more (IDx worse than clinical examination), then the IDx system will be considered non-inferior to clinical examination by ophthalmologists.
If IDx is non-inferior to clinical examination, a two-sided test of the null hypothesis that the difference in sensitivities is 0 will be conducted to determine if the IDX is superior to clinical examination.
24 McNemar's test for paired proportions will be used to test the difference in proportions.
|
Recruitment over 4 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Specificity (true negatives divided by true negatives plus false positives) at detecting more than moderate non proliferative diabetic retinopathy and/or significant macular edema on a person-specific basis.
Time Frame: Four months
|
Secondary Outcome Variables:
|
Four months
|
Sensitivity on an eye-specific basis [Clinical examination only]
Time Frame: Four months
|
Analysis of secondary outcomes will follow the same approach as for the primary outcome analysis of paired proportions as described above for the comparison of person-specific sensitivity.
|
Four months
|
Specificity on an eye-specific basis [Clinical examination only]
Time Frame: Four months
|
Analysis of secondary outcomes will follow the same approach as for the primary outcome for analysis of paired proportions as described above for the comparison of person-specific sensitivity.
|
Four months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Jordan Graff, MD, Barnet Dulaney Perkins Eye Center - Phoenix & Mesa AZ
- Principal Investigator: Brian Privett, MD, Iowa Eye Center, Cedar Rapids IA
- Principal Investigator: Timothy Johnson, MD, University of Iowa, Iowa City IA
- Principal Investigator: James Major, MD, Retina Consultants of Houston - Houston TX (2 locations)
- Principal Investigator: Judianne Kellaway, MD, Robert Cizik Eye Center - University of Texas Houston
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
April 1, 2012
Primary Completion (ACTUAL)
April 1, 2014
Study Completion (ACTUAL)
April 1, 2014
Study Registration Dates
First Submitted
May 25, 2012
First Submitted That Met QC Criteria
June 19, 2012
First Posted (ESTIMATE)
June 21, 2012
Study Record Updates
Last Update Posted (ESTIMATE)
April 22, 2014
Last Update Submitted That Met QC Criteria
April 21, 2014
Last Verified
April 1, 2014
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 001 (NavyGHB)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Diabetic Retinopathy
-
Retina Institute of HawaiiUnknownDiabetic Macular Edema | Proliferative Diabetic Retinopathy | Severe Nonproliferative Diabetic Retinopathy | Mild Nonproliferative Diabetic Retinopathy | Moderate Nonproliferative Diabetic RetinopathyUnited States
-
University of CataniaUnknownProliferative Diabetic Retinopathy | Non Proliferative Diabetic RetinopathyItaly
-
Asociación para Evitar la Ceguera en MéxicoCompletedProliferative Diabetic Retinopathy | Severe Nonproliferative | Active Photocoagulated Diabetic RetinopathyMexico
-
Asociación para Evitar la Ceguera en MéxicoUnknownProliferative Diabetic Retinopathy | Non Proliferative Diabetic RetinopathyMexico
-
Valo Health, Inc.RecruitingProliferative Diabetic Retinopathy | Non-proliferative Diabetic RetinopathyUnited States
-
Asociación para Evitar la Ceguera en MéxicoUnknownNon Proliferative Diabetic Retinopathy. | Proliferative Diabetic Retinopathy.Mexico
-
AEYE Health IncA. Stein Regulatory Affairs Consulting Ltd.RecruitingDiabetic Mellitus | Diabetic Retinopathy, DRUnited States
-
Ocuphire Pharma, Inc.CompletedDiabetic Retinopathy | Diabetic Macular Edema | NPDR - Non Proliferative Diabetic Retinopathy | PDR - Proliferative Diabetic RetinopathyUnited States
-
King Khaled Eye Specialist HospitalCompletedDiabetic Macular Edema | Proliferative Diabetic Retinopathy | Non-proliferative Diabetic RetinopathySaudi Arabia
-
Retina Macula InstituteAllerganCompletedDiabetic Macular Edema | Proliferative Diabetic Retinopathy | Non-proliferative Diabetic RetinopathyUnited States
Clinical Trials on Photography of the retina
-
DuBois Vision ClinicWithdrawnDry Macular Degeneration
-
Centre Hospitalier National d'Ophtalmologie des...RecruitingStroke | Glaucoma | Hypertension | Diabetes | Retinal Degeneration | Macular Edema | Retinitis Pigmentosa | Retinal Detachment | Vascular Inflammation | Macular Dystrophy | Maculopathy, Age RelatedFrance
-
Retina GlobalVisionQuest Biomedical LLCCompletedDiabetic RetinopathyBolivia
-
Assistance Publique - Hôpitaux de ParisCompleted
-
Centre Hospitalier Universitaire de NīmesRecruiting
-
University of MichiganCompletedAlzheimer Disease | Frontotemporal Dementia | Alzheimer DementiaUnited States
-
Heidelberg Engineering GmbHCompletedNormal Eyes of Subjects Without Diabetes Mellitus | Subjects With Diabetes Mellitus Type 2 Without Coexisting DPN | Subjects With Diabetes Mellitus Type 2 With Coexisting Early to Moderate DPN
-
Centre Hospitalier Universitaire DijonCompletedRhegmatogenous Retinal DetachmentFrance
-
University Hospital, ToulouseRecruiting
-
Retina Implant AGCompletedRetinitis PigmentosaGermany