- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03528720
Evaluation System and Clinical Application for Diabetic Retinopathy
May 16, 2018 updated by: Guangdong Provincial People's Hospital
Diabetic retinopathy(DR) is one of the most common and serious microvascular complications of diabetes,which is the primary cause of vision loss of diabetic patients.
The risk of blindness is 25 times that of healthy people.Fundus fluorescein angiography (FFA) is the gold standard for diagnosing the stage of diabetic retinopathy.However,FFA is an invasive examination which requires the patient to be in good physical condition and is not suitable for large-scale screening.Therefore, it is important to build up an evaluation system for early diagnosis of DR,which is more convenient, safer, and non-invasive.Firstly, this study will retrospectively analyze the FFA images of DR to find the earliest and most frequently occurring fundus quadrant.Secondly,based on the retrospective analysis results, a prospective comparative study will be conducted,which combines the fundus photography with optical coherence tomography angiography(angio-OCT) and physical indicators to find out whether it has consistency, sensitivity and specificity with FFA in diagnosing the stage of DR in order to build up a more effective,safer and faster evaluation system and clinical application for DR.
Study Overview
Status
Completed
Conditions
Detailed Description
Firstly, this study will retrospectively analyze the FFA images of DR to find the earliest and most frequently occurring fundus quadrant.Secondly,based on the retrospective analysis results, a prospective comparative study will be conducted,which combines the fundus photography with angio-OCT and physical indicators to find out whether it has consistency, sensitivity and specificity with FFA in diagnosing the stage of DR.Finally,based on all the results,to build up a more effective,safer and faster evaluation system and clinical application for DR.
Study Type
Observational
Enrollment (Actual)
225
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
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Guangdong
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Guangzhou, Guangdong, China, 510000
- Qianli Meng
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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
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
The retrospective study needs 150 people.The prospective comparative study needs 200 people.
Description
Inclusion Criteria:
Patients with diabetic retinopathy
Exclusion Criteria:
Refractive interstitial turbidity Cannot cooperate with examiner Retinal surgery in patients Malignant tumors Hematological diseases Immune diseases Glaucoma or other retinal diseases
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
- Observational Models: Other
- Time Perspectives: Other
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
The earliest and most frequently occurring fundus quadrant of diabetic retinopathy in fundus fluorescein angiography.
Time Frame: 2 years
|
The study is to find the earliest and most frequently occurring fundus quadrant of diabetic retinopathy.Based on the the retrospective analysis results, a prospective comparative study will be conducted to build up a evaluation system and clinical application for diabetic retinopathy.We divided the FFA images into nine quadrants: posterior pole, superior, superior nasal, nasal, inferior nasal, inferior, inferior temporal, temporal, and superior temporal.
The qualitative analysis of diabetic retinopathy in each quadrant was performed.
The earliest and most common fundus quadrant of diabetic retinopathy was then assessed using a rank sum test, t-test, and analysis of variance.
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2 years
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
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 (Actual)
June 13, 2017
Primary Completion (Actual)
April 30, 2018
Study Completion (Actual)
April 30, 2018
Study Registration Dates
First Submitted
May 7, 2018
First Submitted That Met QC Criteria
May 16, 2018
First Posted (Actual)
May 18, 2018
Study Record Updates
Last Update Posted (Actual)
May 18, 2018
Last Update Submitted That Met QC Criteria
May 16, 2018
Last Verified
April 1, 2018
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2018188H
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
No
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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.
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