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Completed

NCT Number: NCT03811249

Long Term Follow-up of the VisAbility™ Micro Insert System for Presbyopic Patients

The objective of this study is to obtain an additional 36 months of safety and effectiveness data from all subjects who were implanted with the VisAbility™ Micro Insert in the VIS-2014 clinical trial.

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Key information

Age range

45 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Coastal Vision, Orange, California, United States

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About this study

VIS-2014-5YR is a multicenter, observational study to evaluate the long-term safety of the VisAbility™ Micro Inserts in subjects who were implanted with the VisAbility™ Micro Insert in the VIS-2014 clinical trial. Study subjects will be examined at 36, 48, and 60 months post-operatively (based on the anniversary of their first VisAbility™ surgery) with no planned interventions.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subjects who were implanted with the VisAbility™ Micro Insert in Protocol VIS-2014

Exclusion criteria

  • N/A

Treatment and study plan

VisAbility™ Micro Insert

Device

No (new) intervention will be administered during the course of this long term follow-up study. Subjects that previously participated in the VIS-2014 clinical trial that had VisAbility™ Micro Inserts surgically implanted in the eye(s) will be followed prospectively.

Primary outcomes

  1. Primary Safety Measure - Partial or Complete Explantation

    Time frame: From date of VIS-2014-5YR enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.

    Partial explantation (surgical removal of 1-3 Micro Inserts per eye), or complete explantation (surgical removal of all 4 Micro inserts per eye), and reason(s). Safety measure will be recorded if the event occurs.

  2. Primary Safety Measure - Anterior Segment Ischemia

    Time frame: From date of VIS-2014-5YR enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.

    Anterior Segment Ischemia (decreased blood perfusion to the anterior segment of the eye (Grades 2 - 4--the higher the grade, the worse the outcome).

    Grade 2 is decreased pupil reactivity (<25% of Percent Constriction using Neuroptics Pupillometry) Grade 3 is decreased pupil reactivity, plus anterior chamber reaction of Grade 2 cell and/or flare as assessed via biomicrosope examination Grade 4 is decreased pupil reactivity, plus anterior chamber reaction of Grade 2 cell and/or flare, plus corneal edema (Grade 3 with Striate Keratopathy) as assessed via biomicroscope examination Safety measure will be recorded if the event occurs.

  3. Primary Safety Measure - Segment Exposure.

    Time frame: From date of VIS-2014-5YR enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.

    Segment exposure due to conjunctival and/or scleral erosion as assessed via biomicroscopic examination. Safety measure will be recorded if the event occurs.

  4. Primary Safety Measure -Participants With Serious Ocular and Serious Non-Ocular Adverse Events

    Time frame: From date of VIS-2014-5YR enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.

    Rate of Individual Participants with Serious Ocular and Serious Non-Ocular Adverse Events (SAE's). Safety measure will be recorded if the event occurs.

Secondary outcomes

  1. Secondary Safety Measure - Best Corrected Distance Visual Acuity (BCDVA) in Eyes Examined at 36, 48 and 60 Month Visits

    Time frame: From date of enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.

    Best Corrected Distance Visual Acuity (BCDVA, which is distance visual acuity with the best distance refractive corretion in place) in all eyes seen at the 36 month postoperative visit, 48 month postoperative visit and 60 month postoperative visit will be measured and recorded.

  2. Secondary Safety Measure - Intraocular Pressure (IOP)

    Time frame: From date of enrollment until the date of study withdrawal or study completion, whichever came first, assessed up to 60 months post-surgery.

    IOP increase > 10 mm Hg over baseline or IOP > 30 mm Hg as measured via Goldmann applanation tonometry

  3. Secondary Safety Measure - Slit Lamp

    Time frame: From date of VIS-2014-5YR enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.

    Slit Lamp findings in all eyes implanted or explanted during the VIS-2014 clinical study and subsequently enrolled in the VIS-2014-5YR

  4. Secondary Safety Measure - Fundus Exam

    Time frame: From date of VIS-2014-5YR enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.

    Fundus exam findings (using binocular indirect ophthalmoscopy and/or the biomicroscope/slit lamp and a condensing lens) in all eyes implanted or explanted in the VIS-2014 clinical study and subsequently enrolled in the VIS-2014-5YR study

  5. Secondary Safety Measure - Number of Participants With Adverse Events

    Time frame: From date of VIS-2014-5YR enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.

    Rate of Adverse Events (AE's) in all participants implanted or explanted during the VIS-2014 clinical study and subsequently enrolled in the VIS-2014-5YR study

  6. Secondary Effectiveness Measure - Distance Corrected Near Visual Acuity--Effectiveness Cohort

    Time frame: From date of VIS-2014-5YR enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.

    distance corrected near visual acuity of 20/40 or better in the primary eye of bilaterally implanted subjects (with all eight implants in place), as compared to baseline (VIS-2014).

  7. Secondary Effectiveness Measure--Uncorrected Near Visual Acuity-Effectivness Cohort

    Time frame: From date of VIS-2014-5YR enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.

    uncorrected near visual acuity of 20/40 or better in the primary eye of bilaterally implanted subjects (with all eight implants in place), as compared to baseline (VIS-2014).

Sponsors and collaborators

Lead sponsor

Refocus Group, Inc.

Industry

Registry information

Official study title

A Prospective, Multicenter Clinical Trial of the VisAbility™ Micro Insert System for the Improvement of Near Visual Acuity in Presbyopic Subjects - Long Term Follow-up

Important dates

Study start
2018
Primary completion
2021
Study completion
2021
First posted
Jan 22, 2019
Registry last updated
Nov 18, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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