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

Sponsor
Refocus Group, Inc. (Industry)
Overall Status
Unknown status
CT.gov ID
NCT03811249
Collaborator
(none)
360
13
1
30.9
27.7
0.9

Study Details

Study Description

Brief Summary

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.

Condition or Disease Intervention/Treatment Phase
  • Device: VisAbility™ Micro Insert
N/A

Detailed Description

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.

Study Design

Study Type:
Interventional
Anticipated Enrollment :
360 participants
Allocation:
N/A
Intervention Model:
Single Group Assignment
Intervention Model Description:
A non-randomized single group design. All subjects who were implanted with the VisAbility™ Micro Insert (360 subjects) will be invited to participate. Actual sample size will be determined at the completion of enrollment.A non-randomized single group design. All subjects who were implanted with the VisAbility™ Micro Insert (360 subjects) will be invited to participate. Actual sample size will be determined at the completion of enrollment.
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official 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
Actual Study Start Date :
Dec 3, 2018
Anticipated Primary Completion Date :
Jul 1, 2021
Anticipated Study Completion Date :
Jul 1, 2021

Arms and Interventions

Arm Intervention/Treatment
Experimental: Implantation-Non-randomized

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 for an additional 36 month period to measure long term safety and effectiveness outcomes.

Device: VisAbility™ Micro Insert
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.

Outcome Measures

Primary Outcome Measures

  1. Primary safety measure - Partial explantation [From date of enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.]

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

  2. Primary safety measure - Anterior Segment Ischemia [From date of enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.]

    Anterior Segment Ischemia (Grades 2 - 4). Safety measure will be recorded if the event occurs.

  3. Primary safety measure - Segment exposure. [From date of 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. Safety measure will be recorded if the event occurs.

  4. Primary safety measure - Serious Adverse Events [From date of enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.]

    Rate of Serious Adverse Events (SAE's). Safety measure will be recorded if the event occurs.

Secondary Outcome Measures

  1. Secondary safety measure - Best Corrected Distance Visual Acuity (BCDVA) [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) will be measured and recorded.

  2. Secondary safety measure - Intraocular Pressure (IOP) [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

  3. Secondary safety measure - Slit Lamp [From date of enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.]

    Slit Lamp findings

  4. Secondary safety measure - Fundus Exam [From date of enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.]

    Fundus exam findings

  5. Secondary safety measure - Adverse Events [From date of 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)

  6. Secondary effectiveness measure - Uncorrected and Distance Corrected Near Visual Acuity [From date of enrollment until the date of study withdrawal or study completion, whichever comes first, assessed up to 60 months post-surgery.]

    Change in uncorrected and distance corrected near visual acuity and letters correct in the primary eye of bilaterally implanted subjects (with all eight implants in place), as compared to baseline (VIS-2014).

Eligibility Criteria

Criteria

Ages Eligible for Study:
47 Years to 62 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Subjects who were implanted with the VisAbility™ Micro Insert in Protocol VIS-2014
Exclusion Criteria:
  • N/A

Contacts and Locations

Locations

Site City State Country Postal Code
1 Coastal Vision Orange California United States 92868
2 Gordon Schanzlin New Vision Institute San Diego California United States 92122
3 Aloha Laser Vision Honolulu Hawaii United States 96814
4 The Midwest Center for Sight Des Plaines Illinois United States 60016
5 Eye Surgeons Of Indiana PC Indianapolis Indiana United States 46260
6 Eye Care Institute Louisville Kentucky United States 40206
7 Chu Vision Institute Bloomington Minnesota United States 55420
8 South Shore Eye Care LLP Wantagh New York United States 11793
9 Physicians Protocol Greensboro North Carolina United States 27401
10 Comprehensive EyeCare of Central Ohio Westerville Ohio United States 43082
11 Bucci Laser Vision Wilkes-Barre Pennsylvania United States 18702
12 Key Whitman Eye Center Dallas Texas United States 75242
13 Braverman-Terry-Oei-Eye Associates San Antonio Texas United States 78212

Sponsors and Collaborators

  • Refocus Group, Inc.

Investigators

  • Principal Investigator: David Schanzlin, Dr, Chief Medical Officer

Study Documents (Full-Text)

None provided.

More Information

Additional Information:

Publications

None provided.
Responsible Party:
Refocus Group, Inc.
ClinicalTrials.gov Identifier:
NCT03811249
Other Study ID Numbers:
  • VIS-2014-5YR
First Posted:
Jan 22, 2019
Last Update Posted:
Oct 18, 2019
Last Verified:
Oct 1, 2019
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
Yes
Keywords provided by Refocus Group, Inc.
Additional relevant MeSH terms:

Study Results

No Results Posted as of Oct 18, 2019