NCT04268836

Brief Summary

The purpose of this study is to determine whether the Optimal Acuity Clear-K® Low Vision Aid System provides a safe and effective treatment to improve vision for patients with age-related macular degeneration.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
200

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2024

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 16, 2018

Completed
2.1 years until next milestone

First Posted

Study publicly available on registry

February 13, 2020

Completed
3.9 years until next milestone

Study Start

First participant enrolled

January 9, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2024

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2025

Completed
Last Updated

March 22, 2023

Status Verified

April 1, 2022

Enrollment Period

5 months

First QC Date

January 16, 2018

Last Update Submit

March 21, 2023

Conditions

Keywords

dry AMDwet AMDneovascular AMDage-related macular degeneration

Outcome Measures

Primary Outcomes (1)

  • Best spectacle-corrected distance visual acuity (CDVA) changes from baseline to 24 months post-Tx

    CDVA will be measured using ETDRS letter scoring both pre-Tx and post-Tx with follow-up to 24 months post-Tx

    Through study completion, an average of 2 years

Secondary Outcomes (1)

  • Visual Function Questionnaire (VFQ)-25 quality of life assessment

    Through study completion, an average of 2 years

Study Arms (1)

Treatment arm

EXPERIMENTAL

Patients will be treated by the Optimal Acuity Clear-K Low Vision Aid System.

Device: Optimal Acuity Clear-K® Low Vision Aid System treatment

Interventions

The treatment involves irradiation of the cornea with low energy light in a treatment pattern that produces corneal shape change.

Treatment arm

Eligibility Criteria

Age50 Years - 100 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or Female
  • Any race
  • Patient is at least 50 years old.
  • Patient has diagnosed dry or wet age-related macular degeneration in one or both eyes, as verified by a complete ocular examination by a retina specialist; the full ocular examination, including optical coherence tomography (OCT) measurements, should be part of the patient's file.
  • Wet AMD eyes should have an inactive disease state (i.e., there is no clinical or OCT evidence of wet AMD disease activity).
  • Patient is pseudophakic or is phakic with no clinically significant cataract in eye(s) to be treated..
  • Patient has manifest refraction, spherical equivalent (MRSE) between -1.50 D to 1.50 D in eye(s) to be treated.
  • Patient has moderate to severe vision impairment due to dry age-related macular degeneration with best spectacle-corrected distance visual acuity (CDVA) of 20/80 or worse (decimal = 0.25 or less; logMAR ≥ 0.60) in the better eye.
  • Patient has CDVA of 20/400 or better (decimal = 0.05 or greater; logMAR ≤ 1.30) in the worse eye.
  • Patient has normal corneal surface topography on videokeratography (i.e., without distorted or unclear corneal mires) in both eyes.
  • Patient is not a contact lens (CL) wearer.
  • Patient is willing and able to comply with all examinations.
  • Patient must be competent to sign an informed consent form before study entry.

You may not qualify if:

  • Corneal disease or disorder in either eye;
  • Corneal topographic astigmatism greater than 2.00 D (mean value within 3.0 mm optical zone);
  • Pathological retinal morphology in either eye that completely affects the entire 10° (3 mm diameter) of the retina centered on the foveola (as evaluated by optical coherence tomography);
  • Potential Visual Acuity (PVA) in both eyes that is not improved by at least three lines compared to CDVA;
  • Increased intraocular pressure (above 20 mm Hg), glaucoma or history of glaucoma; and
  • Presence or history of any other condition or finding that, in the opinion of the investigator, makes the patient unsuitable as a candidate for study participation or that may confound the outcome of the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

1929 Bayview Ave., Suite 117

Toronto, Ontario, M4G 3E8, Canada

Location

MeSH Terms

Conditions

Macular Degeneration

Condition Hierarchy (Ancestors)

Retinal DegenerationRetinal DiseasesEye Diseases

Study Officials

  • Michael Berry, PhD

    Optimal Acuity Corporation

    STUDY DIRECTOR

Central Study Contacts

Michael Berry, PhD

CONTACT

Samuel Markowitz, MD, FRCSC

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Prospective, non-randomized, unmasked clinical study
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 16, 2018

First Posted

February 13, 2020

Study Start

January 9, 2024

Primary Completion

May 31, 2024

Study Completion

May 1, 2025

Last Updated

March 22, 2023

Record last verified: 2022-04

Data Sharing

IPD Sharing
Will not share

Locations