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CompletedNCT03912584Updated Sep 23, 2022Results posted

Study Comparing the P200TE and the P200TxE in Glaucoma Patients

An interventional study of P200TE and P200TxE in Glaucoma, sponsored by Optos, PLC. Completed at 1 site in United States. Open to participants aged 22 Years and older. Per ClinicalTrials.gov, last updated 2022-09-23.

Sponsored by Optos, PLC · Not applicable, Interventional, and Diagnostic

Phase
Not applicable
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
22 Years and older
Sex
All
01

Study summary

The study evaluates the image quality between two OCT devices.

Read the detailed description

The objective of this study is to collect OCT scans to compare the qualitative B scan images produced by the P200TxE to the P200TE device in glaucoma subjects.

02

Conditions studied

  • Glaucoma

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03

In context

Glaucoma

1,844 studies on the registry are indexed under Glaucoma; 233 are open to participants now.

This study's enrollment of 10 is below the median of 65 across 1,296 interventional studies indexed under Glaucoma.

Browse Glaucoma studies →

Lead sponsor

Optos, PLC is the lead sponsor of 18 studies on the registry; 3 are open to participants now.

Of its 10 completed or terminated interventional studies of FDA-regulated products, 1 (10%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
22 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

  • Male or female subjects 22 years of age or older who have full legal capacity to volunteer on the date the informed consent is signed;
  • Subjects who can follow the instructions by the clinical staff at the clinical site,
  • Subjects who agree to participate in the study;
  • Subjects who have been diagnosed with glaucoma in the study eye as confirmed by the investigator;

Exclusion criteria

Exclusion Criteria:

  • Subjects unable to tolerate ophthalmic imaging;
  • Subjects with ocular media not sufficiently clear to obtain acceptable OCT images;
  • Subjects with any clinically significant ocular pathology except glaucoma, as determined by self-report and/or investigator assessment on the day of the study visit;
  • Subjects who are not reliably tested with at least one Humphrey Field Analyzer (HFA) visual field (24-2 or 30-2, white on white) measured on the day of the study visit or within the previous year from the study visit, defined as fixation losses > 20% or false positives > 33%, or false negatives > 33%;
  • Subjects with history of dementia or multiple sclerosis
05

Study design

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

Study arms

  • Other
    Optical Coherence Tomographer

    Device: P200TE · Device: P200TxE

Interventions

  • DeviceP200TE

    The P200TE Ophthalmoscope provides widefield Scanning Laser Ophthalmoscope (SLO) fundus imaging and Optical Coherence Tomography (OCT) imaging in one device.

  • DeviceP200TxE

    The P200TxE Ophthalmoscope provides widefield Scanning Laser Ophthalmoscope (SLO) fundus imaging and Optical Coherence Tomography (OCT) imaging in one device.

06

What researchers measure

Primary outcomes

  1. Qualitative B-Scan Assessment

    Scores will be based on a 4 point grading scale (0 to 3), with 0 corresponding to failure, 1 is poor, 2 is fair, and 3 is good. The four point scale is defined as follows: 0 indicates the scan is a failure, and contains no clinically useful information. No relevant structures are visible in the scan. 1. indicates the condition of the structure or feature being assessed is poor, and it contains very limited clinical utility. 2. indicates the condition of the structure or feature being assessed is fair or average. It contains some useful clinical information and therefore provides adequate clinical utility. 3. indicates the condition of the structure or feature being assessed is good. It contains useful clinical information. The clinical utility is high or good.

    Time frame: 1 day (start: April 29, 2019 - completed: April 30, 2019)

Secondary outcomes

  1. Number of Participants With Adverse Events

    Analysis of safety will be assessed through adverse events reported by the site and documented on each subject's case report form. No AEs were recorded during this study.

    Time frame: 1 day

07

Results

Posted Sep 23, 2022

Participant flow

Participant flow — Overall Study
MilestoneOptical Coherence Tomographer
Started10
Completed10
Not completed0

Outcome measures

PrimaryQualitative B-Scan Assessment

Scores will be based on a 4 point grading scale (0 to 3), with 0 corresponding to failure, 1 is poor, 2 is fair, and 3 is good. The four point scale is defined as follows: 0 indicates the scan is a failure, and contains no clinically useful information. No relevant structures are visible in the scan. 1. indicates the condition of the structure or feature being assessed is poor, and it contains very limited clinical utility. 2. indicates the condition of the structure or feature being assessed is fair or average. It contains some useful clinical information and therefore provides adequate clinical utility. 3. indicates the condition of the structure or feature being assessed is good. It contains useful clinical information. The clinical utility is high or good.

Time frame:
1 day (start: April 29, 2019 - completed: April 30, 2019)
Reported as:
Mean · Mean score on a scale (0-3)
Qualitative B-Scan Assessment
Mean score on a scale (0-3)Optical Coherence Tomographer - P200TEOptical Coherence Tomographer - P200TxE
Average score (0-3) for clinical utility and clinical quality Indy (P200TxE) Posterior scans—2.78 ± .45
Average score (0-3) for clinical utility and clinical quality Indy (P200TxE) Peripheral scans—2.77 ± .46
Average score (0-3) for clinical utility and clinical quality Monaco (P200TE) scans2.08 ± .64—
SecondaryNumber of Participants With Adverse Events

Analysis of safety will be assessed through adverse events reported by the site and documented on each subject's case report form. No AEs were recorded during this study.

Time frame:
1 day
Reported as:
Count of participants · Participants
Number of Participants With Adverse Events
ParticipantsOptical Coherence Tomographer P200TEOptical Coherence Tomographer - P200TxE
Number of Participants With Adverse Events00

Adverse events

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

Adverse event summary by group
GroupDeathsSeriousOther
Optical Coherence Tomographer: P200TE0/10 (0%)0/10 (0%)0/10 (0%)
Optical Coherence Tomographer: P200TxE0/10 (0%)0/10 (0%)0/10 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Optical Coherence Tomographer
<=18 years0
Between 18 and 65 years5
>=65 years5
Sex/Gender, Customized
Sex/Gender, Customized(Participants)Optical Coherence Tomographer
Male or Female10
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Optical Coherence Tomographer
Region of Enrollment
Region of Enrollment(participants)Optical Coherence Tomographer
United States10
Glaucoma in Subject eye
Glaucoma in Subject eye(Participants)Optical Coherence Tomographer
Count of participants10
08

Study locations

1 site
  • Medical Center Ophthalmology Associates
    San Antonio, Texas 78240, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Apr 1, 2019

Documents are hosted by the registry — open the source record to download them.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar 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

Ran from Apr 2019 to primary completion in Apr 2019, 0 months.

Results were first posted in Sep 2022, 3 years 4 months after primary completion.

Of 83 industry-sponsored interventional studies with no phase under Glaucoma, half reached primary completion within 27 months of starting (the median), counting those still running; a quarter within 15 and three quarters within 50. This study's 0 months is below that.

Counting every sponsor, half of 355 studies reached it within 29 months; a quarter within 15 and three quarters within 55.

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

Registered
Apr 9, 2019
First posted
Apr 11, 2019
StartActual
Apr 29, 2019
Primary completionActual
Apr 30, 2019
CompletionActual
Apr 30, 2019
Results first posted
Sep 23, 2022
Last update
Sep 23, 2022
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 Sep 23, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03912584
Lead sponsor
Optos, PLC
Responsible party
Sponsor
First posted
Apr 11, 2019
Start date
Apr 29, 2019
Primary completion
Apr 30, 2019
Completion
Apr 30, 2019
Results posted
Sep 23, 2022
Last update
Sep 23, 2022

Oversight

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

Not currently enrolling

This study is completed, as verified in Sep 2022. You cannot join it, but the record below documents what was studied.

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