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Active, not recruitingNCT03694145Updated Oct 22, 2026

Predicting Diabetic Retinopathy From Risk Factor Data and Digital Retinal Images

An observational study in Diabetic Retinopathy and Diabetic Macular Edema, sponsored by Charles Drew University of Medicine and Science. Active, not recruiting at 3 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-22.

Sponsored by Charles Drew University of Medicine and Science · Observational

Updated Oct 22, 2026Primary completion movedStudy completion movedGo to Updates ↓
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
300
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 267 studies in Diabetic Retinopathy with a site in United States — 36 open to participants now, 56 under way, 6 of them phase 3. Diabetic Retinopathy · United States.

Enrollment
24th of 70
300 · median 161
Started
2018
with 10 others
Observational
70 of 267
8 open now
Primary completion
2027-05
later than 25 of 54 live
Registered
144th of 267
by date

Among the 267 studies in Diabetic Retinopathy with a site in United States, this one is the 24th largest by enrollment of the 70 observational ones, is one of 11 that started in 2018, is one of 70 observational ones, reaches primary completion later than 25 of the 54 other live ones, and was the 144th registered.

By phase

267 studies; the count open now beside each. This study's row is marked.

Observationalthis study70 · 8 open
No phase53 · 10 open
Phase 252 · 3 open
Phase 331 · 4 open
Phase 129 · 4 open
Phase 420 · 6 open
Phase 1/28 · 0 open
Phase 2/34 · 1 open

By the year they started

First in 1992; this study’s year is marked. 11 started in 2018.

Size and results

Median enrollment 72 across the 196 interventional studies, 161 across the 70 observational. Of the 186 that completed or were terminated, 66 (35%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 267 studies in Diabetic Retinopathy with a site in United States, or all of them as a file.
02

Study summary

The objective of this study is to compare the results of a deep learning approach to diabetic retinopathy assessment with results from (1) an in-person examination with an ophthalmologist, and (2) the assessments of optometrists involved in a teleretinal screening program.

Read the detailed description

This study represents the third aim of a grant with five aims. The study will compare and evaluate the predictive accuracy of: (a) machine learning models developed to grade diabetic retinopathy and assess the presence or absence of diabetic macular edema and (b) the assessments of optometrist readers, both from digital retinal images, against standard of care dilated retinal examinations by board-certified ophthalmologists and/or retinal-specialty fellows for 300 diabetic patients utilizing a Los Angeles County reading center.

For the study, the investigators will recruit 300-500 eligible diabetic patients for in-person eye examinations performed by board certified ophthalmologists and/or retinal-specialty fellows at Los Angeles County reading centers. The study will take place over the course of two visits: a teleretinal screening and an in-person eye examination.

The in-person dilated eye examinations that the study participants will participate in and be compensated for follow the usual standard of care that patients receive in a setting that does not utilize teleretinal screening. Yearly dilated eye examinations are standard of care for all persons with diabetes.

03

Conditions studied

  • Diabetic Retinopathy
  • Diabetic Macular Edema

Browse trials for

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The study population comprises patients with Type I or Type II diabetes who are normally seen at LACDHS clinics and usually screened for diabetic retinopathy via teleretinal screening.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients diagnosed with Type I or Type II Diabetes
  • Patients who are over the age of 18 years
  • Patients who have not previously been seen in the current year by the LACDHS Teleretinal Diabetic Retinopathy Screening Program and Reading Center
  • Patients whose teleretinal screening exam images yield readable results

Exclusion criteria

Exclusion Criteria:

  • Patients under the age of 18 years
  • Patients with gestational diabetes
  • Patients who have previously been seen in the current year by LACDHS's Teleretinal Diabetic Retinopathy Screening Program and Reading Center
  • Patients whose teleretinal screening exam images do not yield readable results, as gradable images are needed for later comparison against ophthalmologist reads.
  • Previously eligible patients who do not return for an in-person eye exam within 3 months of receiving a teleretinal screening (In order for the results of the teleretinal screening and in-person eye examinations to yield similar information, patients who do not return for their in-person eye exam within 3 months of their teleretinal screening will not be able to remain in the study. This is because significant eye changes not documented by the teleretinal screening may occur after a 3-month period).
05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
300 participants (actual)
Patient registry
No

Groups and cohorts

  • Diabetic patients w. risk of retinopathy

    The 300-500 patients to be enrolled for the study are diabetic patients normally seen by the Los Angeles County Department of Health Services (LACDHS) Teleretinal Diabetic Retinopathy Screening Program and Reading Center. In addition to receiving their recommended LACDHS annual teleretinal screening, for the study, participants will receive an additional in-person eye examination.

    Other: In-Person Eye Examination

Interventions

  • OtherIn-Person Eye Examination

    Dilated in-person eye examination by a board-certified ophthalmologist or retinal fellow.

06

What researchers measure

Primary outcomes

  1. Proportion of patients accurately diagnosed with retinopathy

    Proportion of patients accurately diagnosed with retinopathy using machine learning versus proportion accurately diagnosed by teleretinal screening optometrists with in-person eye examinations by ophthalmologists used as a gold standard.

    Time frame: 11/2022

07

Study locations

3 sites
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedDate before it movedWhere the date was before it movedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Oct 2018 (actual). Primary completion is estimated for May 2027, 103 months after the start.

Of 73 non-industry observational studies under Diabetic Retinopathy, half reached primary completion within 32 months of starting (the median), counting those still running; a quarter within 14. This study's planned 103 months is above that.

Counting every sponsor, half of 90 studies reached it within 28 months; a quarter within 13 and three quarters within 61.

Since we started tracking on Sep 25, 2026, the dates moved once, on Oct 22, 2026: primary completion May 2025 → May 2027 and completion Jul 2025 → Jul 2027.

Earlier changes are on the record history on ClinicalTrials.gov ↗

How these figures are worked out, and which studies are left out of them.

Registered
Oct 1, 2018
First posted
Oct 3, 2018
StartActual
Oct 25, 2018
Primary completionEst.
May 31, 2027was May 2025
CompletionEst.
Jul 31, 2027was Jul 2025
Last update
Oct 22, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Primary completion
May 31, 2025→May 31, 2027
Oct 22, 2026
Study completion
Jul 31, 2025→Jul 31, 2027
Oct 22, 2026
Show all 1 update
  1. Oct 22, 2026
    Primary completion May 31, 2025→May 31, 2027
    Study completion Jul 31, 2025→Jul 31, 2027
    + 2 other changes: index terms and verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT03694145
Lead sponsor
Charles Drew University of Medicine and Science
Collaborators
National Library of Medicine (NLM), Los Angeles County Department of Public Health, University of California, Los Angeles
Responsible party
Sponsor
First posted
Oct 3, 2018
Start date
Oct 25, 2018
Primary completion
May 31, 2027 (estimated)
Completion
Jul 31, 2027 (estimated)
Last update
Oct 22, 2026

Study contacts

Omolola Ogunyemi, PhD
principal investigator · Charles Drew University of Medicine and Science

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

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