NCT02785029

Brief Summary

This prospective, single-arm clinical multicenter study intends to measure normal structural parameters of the optic nerve head, the peripapillary retinal nerve fiber layer, and the macula using the Heidelberg Spectralis OCT device. This study is conducted in African-American descent volunteers. The main goal of the study is to provide the range of these structural parameters in normal eyes.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
234

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jun 2016

Longer than P75 for all trials

Geographic Reach
1 country

8 active sites

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 18, 2016

Completed
9 days until next milestone

First Posted

Study publicly available on registry

May 27, 2016

Completed
5 days until next milestone

Study Start

First participant enrolled

June 1, 2016

Completed
6.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2023

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2023

Completed
Last Updated

March 19, 2025

Status Verified

August 1, 2023

Enrollment Period

6.9 years

First QC Date

May 18, 2016

Last Update Submit

March 17, 2025

Conditions

Outcome Measures

Primary Outcomes (3)

  • Bruch-Membrane-Opening - Minimum Rim Width (µm)

    Bruch-Membrane-Opening - Minimum Rim Width (µm)

    Baseline

  • Bruch-Membrane-Opening - Minimum Rim Area (µm^2)

    Bruch-Membrane-Opening - Minimum Rim Area (µm\^2)

    Baseline

  • Peripapillary Retinal Nerve Fibre Layer Thickness (µm)

    Peripapillary Retinal Nerve Fibre Layer Thickness (µm)

    Baseline

Study Arms (1)

Normal healthy Volunteers

OCT imaging

Device: OCT

Interventions

OCTDEVICE
Normal healthy Volunteers

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Healthy eyes without prior intraocular surgery (except cataract surgery and Laser in Situ Keratomileusis) and without clinically significant vitreal, retinal or choroidal diseases, clinically significant diabetic retinopathy (subject may have diabetes), or disease of the optic nerve from subjects of Black or African-American decent (self-reported)

You may qualify if:

  • Able and willing to undergo the test procedures, give consent, and to follow instructions.
  • Signed informed consent
  • Age ≥18 to 90.
  • Healthy eye without prior intraocular surgery (except cataract surgery and Laser in Situ Keratomileusis) and without clinically significant vitreal, retinal or choroidal diseases, clinically significant diabetic retinopathy (subject may have diabetes), or disease of the optic nerve. Small drusen are acceptable in older subjects.
  • Black or African-American decent (self-reported)
  • Negative history of glaucoma (not including family history)
  • Intraocular pressure ≤21mmHg.
  • Best corrected visual acuity ≥20/40.
  • Refraction between +6 and -6 diopters and astigmatism ≤ 2 diopters.
  • Axial length ≤ 26.0 mm (by optical biometry)
  • Normal visual field with Glaucoma Hemifield Test and Mean Deviation within normal limits or not abnormal visual field by judgment of the ophthalmologist / optometrist
  • Clinically normal appearance of the optic disc, with normal appearing neuroretinal rim with respect to color and shape. The optic disc is examined ophthalmoscopically and by evaluation of stereo photographs.
  • If both eyes are eligible, both eyes enter the study.

You may not qualify if:

  • Vulnerable subjects (as defined in ISO 14155 GCP) with the exception of employees of the site, and, if applicable, students of the respective university. Staff that is listed on the delegation form are excluded from participation.
  • Subjects unable to read or write
  • Unreliable visual field. The reliability indices should be used as guide as well as the perimetrist's notes.
  • Unusable disc stereo photos.
  • Inability to undergo the tests.
  • Insufficient quality of Spectralis OCT images (this is not determined until after Spectralis OCT examination, and is an unusual circumstance).
  • Minimum requirements are:
  • Retina completely included in image frame,
  • Quality Score ≥ 20 in the stored ART mean images, and
  • For ONH-R scan: Center position error ≤ 100 μm.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (8)

University California San Diego

La Jolla, California, 92093, United States

Location

Assil Eye Institute

Santa Monica, California, 90404, United States

Location

Mid Florida Eye Center Clinic

Mt. Dora, Florida, 32757, United States

Location

Illinois Eye Institute, Illinois College of Optometry

Chicago, Illinois, 60616, United States

Location

St Albans Community Living, Center, Queens Campus

Jamaica, New York, 11425, United States

Location

SUNY College of Optometry

New York, New York, 10036, United States

Location

Ophthalmic Consultants of Long Island-Valley Stream

Valley Stream, New York, 11581, United States

Location

Wills Eye Hospital

Philadelphia, Pennsylvania, 19107, United States

Location

MeSH Terms

Conditions

Glaucoma

Condition Hierarchy (Ancestors)

Ocular HypertensionEye Diseases

Study Officials

  • Balwantray Chauhan, OD

    Department of Ophthalmology and Visual Sciences Dalhousie University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 18, 2016

First Posted

May 27, 2016

Study Start

June 1, 2016

Primary Completion

May 1, 2023

Study Completion

July 1, 2023

Last Updated

March 19, 2025

Record last verified: 2023-08

Data Sharing

IPD Sharing
Will not share

Locations