Non Exudative AMD Imaged With SS-OCT

NCT ID: NCT03688243

Last Updated: 2022-03-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

225 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-01-18

Study Completion Date

2023-03-31

Brief Summary

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The investigators wish to better understand the role of the choriocapillaris (CC) in the formation and progression of non-exudative in age related macular degeneration (armd) by imaging the retinal pigment epithelium (rpe) and the choroidal microvasculature and by studying their inter-dependence to determine if the loss of the CC could prove useful as an anatomic clinical trial endpoint in future drug trials.

Detailed Description

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This is a longitudinal observational study where the investigators will look at 450 subjects, 200 with intermediate AMD in at least one eye, or with AMD in one eye, either early or intermediate, and with late AMD (exudative) in the other eye, and 250 subjects with nGA or GA in at least one eye.

Conditions

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Dry Macular Degeneration

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Cohort 1 'IMPACT Cohort'

Subjects with intermediate AMD in both eyes, and at least one eye with a drusen volume in the central 3 mm circle centered on the fovea of at least 0.02mm3 in the absence of GA or nGA as diagnosed with OCT en face imaging OR subjects with AMD (early or intermediate) diagnosed in one eye and exudative AMD diagnosed in the fellow eye will undergo SS-OCT imaging every 3 months for 2 years

SS-OCT imaging

Intervention Type DEVICE

All subjects will undergo retinal imaging using the Zeiss PlexElite SS-OCT, a non-contact, non-invasive ocular imaging instrument

Cohort 2 'SWAGGER Cohort'

Subjects with GA or nGA secondary to AMD that is at least the size of a large druse (125 microns in diameter; 0.05 mm2) and no greater than 7 disc areas (17 mm2) in at least one eye will undergo SS-OCT imaging every 3 months for 2 years

SS-OCT imaging

Intervention Type DEVICE

All subjects will undergo retinal imaging using the Zeiss PlexElite SS-OCT, a non-contact, non-invasive ocular imaging instrument

Cohort 3

Subjects with GA enrolled in another trial

SS-OCT imaging

Intervention Type DEVICE

All subjects will undergo retinal imaging using the Zeiss PlexElite SS-OCT, a non-contact, non-invasive ocular imaging instrument

Interventions

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SS-OCT imaging

All subjects will undergo retinal imaging using the Zeiss PlexElite SS-OCT, a non-contact, non-invasive ocular imaging instrument

Intervention Type DEVICE

Other Intervention Names

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Zeiss PlexElite PlexElite 9000 Swept Source OCT Optical Coherence Tomography Angiography

Eligibility Criteria

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Inclusion Criteria

1. Aged 50 and over
2. Clinic diagnosis of non-exudative iAMD in at least one eye with a drusen volume in the central 3 mm circle centered on the fovea of at least 0.02 mm3 in the absence of GA or nGA as diagnosed with OCT en face imaging OR Clinical diagnosis of early or early/intermediate stage AMD in one eye in the absence of nGA or GA and exudative AMD in the other eye OR clinical diagnosis of GA or nGA secondary to AMD that is at least the size of a large druse (125 microns in diameter; 0.05 mm2) and no greater than 7 disc areas (17 mm2) in at least one eye which has never been treated with anti-VEGF agents
3. Willing and able to comply with clinic visits and study-related procedures
4. Provide signed informed consent

Exclusion Criteria

A subject who meets any of the following criteria will be excluded from the study:

1. Below the age of 50
2. Subjects with exudative AMD in both eyes
3. Eyes with evidence of non-proliferative and proliferative diabetic retinopathy.
4. Presence of confounding ocular diagnosis such as myopia \>6D, or other ocular conditions that may cause retinal pigment epithelium atrophy or exudative MNV
5. Subjects unable to give informed consent.
6. Subjects who are unable to comply with imaging guidelines
Minimum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Boston Image Reading Center

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Nadia Waheed, MD

Role: PRINCIPAL_INVESTIGATOR

Boston Image Reading Center/Tufts Medical Center

Philip Rosenfield, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Bascom Palmer Eye Institute

Locations

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University of California Los Angeles Doheny Eye Institute

Los Angeles, California, United States

Site Status

Bascom Palmer Eye Institue

Miami, Florida, United States

Site Status

New England Eye Center/Tufts Medical Center

Boston, Massachusetts, United States

Site Status

Vitreous Retina Macular Consultants of NY

New York, New York, United States

Site Status

Melbourne University CERA

East Melbourne, Victoria, Australia

Site Status

Countries

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United States Australia

Other Identifiers

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BIRC-01 IMPACT

Identifier Type: -

Identifier Source: org_study_id

NCT03972800

Identifier Type: -

Identifier Source: nct_alias

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