ClinicalTrials.gg
CompletedNCT03323307Updated Dec 5, 2019Results posted

Low Cost OCT for Point of Care

An interventional study of OCT imaging in Optical Coherence Tomography (OCT) of the Retina, sponsored by Duke University. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-12-05.

Sponsored by Duke University · Not applicable, Interventional, and Diagnostic

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Phase
Not applicable
Study type
Interventional
Enrollment
70
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-15

Among 28 studies in Ornithine Carbamoyltransferase Deficiency Disease with a site in United States — 6 open to participants now, 11 under way, 2 of them phase 3. Ornithine Carbamoyltransferase Deficiency Disease · United States.

Enrollment
Largest of 12
70 · median 15
Started
2018
with 3 others
No phase
Only one
of the 28
Registered
12th of 28
by date
Lead sponsor
1 of 28
Duke University

Among the 28 studies in Ornithine Carbamoyltransferase Deficiency Disease with a site in United States, this one has the largest enrollment of the 12 interventional ones that give a count, is one of 4 that started in 2018, is the only one with no phase, and was the 12th registered.

Ornithine Carbamoyltransferase Deficiency Disease

59 studies on the registry are indexed under Ornithine Carbamoyltransferase Deficiency Disease; 13 are open to participants now.

Browse Ornithine Carbamoyltransferase Deficiency Disease studies →

Open to participants now

6 of the 28 studies in Ornithine Carbamoyltransferase Deficiency Disease with a site in United States are open now. Recruiting first, the newest first:

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All 6 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 10 Ornithine Carbamoyltransferase Deficiency Disease studies recruiting now, 3 (30%) set no upper age limit and 6 (60%) stop at 75 or younger; 7 take children under 18; 3 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 28 studies in Ornithine Carbamoyltransferase Deficiency Disease with a site in United States, or all of them as a file.
02

Study summary

The purpose of this study is to compare the performance of a prototype optical coherence tomography (OCT) machine with currently available high resolution OCT machines.

03

Conditions studied

  • Optical Coherence Tomography (OCT) of the Retina
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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 scheduled to receive standard OCT testing as part of their clinical visit

Exclusion criteria

Exclusion Criteria:

  • none
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
70 participants (actual)

Study arms

  • Experimental
    OCT imaging

    OCT device images retina

    Device: OCT imaging

Interventions

  • DeviceOCT imaging

    imaging of retina using OCT device

06

What researchers measure

Primary outcomes

  1. Number of Participants With Acceptable OCT Image Quality

    measured by: ability to see clearly defined and recognizable structures of the retina with the low cost OCT device

    Time frame: day 1

Secondary outcomes

  1. Central Macular Thickness

    compare measurements of central macular thickness obtained with low cost OCT system and Heidelberg Spectralis OCT system

    Time frame: day 1

  2. Total Macular Volume

    compare total macular volume measurements obtained with low cost OCT system and Heidelberg Spectralis OCT system

    Time frame: day 1

07

Results

Posted Dec 5, 2019
Limitations and caveats
Acquiring data for the secondary endpoints was not feasible given the technical limitations of the current low cost OCT system set up.

Participant flow

Participant flow — Overall Study
MilestoneOCT Imaging
Started70
Completed70
Not completed0

Outcome measures

PrimaryNumber of Participants With Acceptable OCT Image Quality

measured by: ability to see clearly defined and recognizable structures of the retina with the low cost OCT device

Time frame:
day 1
Reported as:
Count of participants · Participants
Number of Participants With Acceptable OCT Image Quality
ParticipantsOCT Imaging
Number of Participants With Acceptable OCT Image Quality60
SecondaryCentral Macular Thickness

compare measurements of central macular thickness obtained with low cost OCT system and Heidelberg Spectralis OCT system

Time frame:
day 1

No measurements were reported for this outcome.

SecondaryTotal Macular Volume

compare total macular volume measurements obtained with low cost OCT system and Heidelberg Spectralis OCT system

Time frame:
day 1

No measurements were reported for this outcome.

Post-hocContrast-to-Noise Ratio (CNR)

Measure of OCT image quality comparing level of image contrast to level of background noise. CNR = (mean of signal of region of interest \[i.e., retina\] - mean of background noise) divided by square root of (the square of the standard deviation of the region of interest + the square of the standard deviation of the background noise). Therefore, CNR is unitless.

Time frame:
day 1
Reported as:
Mean · unitless
Contrast-to-Noise Ratio (CNR)
unitlessOCT Imaging
Heidelberg Spectralis OCT device1.687 ± 0.027
Low Cost OCT device1.592 ± 0.021

Adverse events

Collected over 1 day. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
OCT Imaging0/70 (0%)0/70 (0%)0/70 (0%)

Baseline characteristics

Age, Customized
Age, Customized(Participants)OCT Imaging
<= 50 years12
50 - 59 years6
60 - 69 years9
70 - 79 years13
80 - 89 years7
>= 90 years1
Unknown or Not Reported22
Sex/Gender, Customized
Sex/Gender, Customized(Participants)OCT Imaging
Male29
Female40
Unknown or Not Reported1
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)OCT Imaging
Hispanic or Latino1
Not Hispanic or Latino59
Unknown or Not Reported10
Race (NIH/OMB)
Race (NIH/OMB)(Participants)OCT Imaging
American Indian or Alaska Native0
Asian3
Native Hawaiian or Other Pacific Islander0
Black or African American8
White48
More than one race0
Unknown or Not Reported11
Retinal Pathology
Retinal Pathology(Participants)OCT Imaging
Participants with Retinal Pathology38
Healthy Volunteers32
08

Study locations

1 site
  • University of North Carolina Kittner Eye Center
    Chapel Hill, North Carolina 27517, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2018 to primary completion in Dec 2018, 8 months.

Results were first posted in Dec 2019, 11 months after primary completion.

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

Registered
Oct 24, 2017
First posted
Oct 27, 2017
StartActual
Mar 28, 2018
Primary completionActual
Dec 13, 2018
CompletionActual
Dec 13, 2018
Results first posted
Dec 5, 2019
Last update
Dec 5, 2019
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.
No changes since tracking began. The registry record was last updated on Dec 5, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03323307
Lead sponsor
Duke University
Collaborators
University of North Carolina, Chapel Hill, Wallace H. Coulter Foundation
Responsible party
Sponsor
First posted
Oct 27, 2017
Start date
Mar 28, 2018
Primary completion
Dec 13, 2018
Completion
Dec 13, 2018
Results posted
Dec 5, 2019
Last update
Dec 5, 2019

Study contacts

Adam Wax, Ph.D.
principal investigator · Duke University

Oversight

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

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This study is completed, as verified in Nov 2019. You cannot join it, but the record below documents what was studied.

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