Effects of Multifocal Contact Lens on Ocular Tissue
Effects on Ocular Tissues of Vistakon® Investigational Multifocal Contact Lenses - Asian Population Study
1 other identifier
interventional
23
1 country
1
Brief Summary
The purpose of this study is to evaluate the etafilcon - PVP (multi-focal)
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Dec 2014
Shorter than P25 for not_applicable
1 active site
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
Study Start
First participant enrolled
December 1, 2014
CompletedFirst Submitted
Initial submission to the registry
January 19, 2015
CompletedFirst Posted
Study publicly available on registry
January 26, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2015
CompletedResults Posted
Study results publicly available
October 5, 2016
CompletedJune 19, 2018
October 1, 2016
5 months
January 19, 2015
June 20, 2016
June 18, 2018
Conditions
Outcome Measures
Primary Outcomes (3)
Upper Eye Lid Margin Staining
Upper Eye Lid Margin Staining is assessed via Ocular Photography using proprietary algorithm. The average grade across upper eye lid margin was reported in mm\^2.
30 days Post wear
Limbal Staining
Measured via Ocular Photography using proprietary algorithm. The limbal conjunctival lissamine green staining average surface area in % of the overall limbal area was reported.
30 Days Post Wear
Corneal Staining
The corneal fluorescein staining average surface area in % of the upper corneal quadrant was reported.
30 Days Post Wear
Study Arms (1)
etafilcon - PVP (multi-focal)
EXPERIMENTALThe investigational soft contact lenses will be worn in a daily wear modality for 30 days over the course of the study.
Interventions
The investigational contact lens must be worn at least six hours daily.
Eligibility Criteria
You may qualify if:
- The subject must read, understand, and sign the statement of Informed Consent and receive a fully executed copy of the form.
- The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol.
- The subject must be between 40 and 70 years of age.
- The subject's vertex corrected spherical equivalent distance refraction must be in the range of 1.00 too -5.75 in each eye.
- The subject must identify themselves as Asian by self-report and have eyes and eyelids with an automatically Asian appearance.
- The subject's refractive cylinder must be less than or equal to -0.75D in each eye.
- The subject's ADD power must be in the range of +0.75 D to +2.5 D in each eye.
- The subject must have best corrected visual acuity of 20/20-3 or better in each eye.
- Subjects own a wearable pair of spectacles, if required for their distance vision.
- The subject must be an adapted soft contact lens wearer in both eyes (i.e. worn lenses a minimum of 5 days per week for at least 8 hours per day, for one month or more duration).
- The subject must already be wearing a presbyopic contact lens correction (e.g. reading spectacles over contact lenses, multifocal or monovision contact lenses, etc.) or if not respond positively to at least one symptom on the "Presbyopic Symptoms Questionnaire".
You may not qualify if:
- Currently pregnant or lactating (subjects who become pregnant during the study will be discontinued)
- Any ocular or systemic allergies that contraindicate contact lens wear.
- Any ocular or systemic disease, autoimmune disease, or use of medication, that will contraindicate contact lens wear.
- Any ocular abnormality that may interfere with contact lens wear.
- Use of any ocular medications, with the exception of rewetting drops.
- Any previous intraocular surgery (e.g. radial keratotomy, PRK, LASIK, etc.).
- Any grade 3 or greater slit lamp findings (e.g. edema, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival injection) which may contraindicate contact lens wear.
- History of herpetic keratitis.
- Any ocular infection or inflammation.
- Any corneal distortion or irregular cornea.
- History of binocular vision abnormality or strabismus.
- Any infectious disease (e.g. hepatitis, tuberculosis) or a contagious immunosuppressive disease (e.g. HIV).
- History of diabetes.
- Habitual wearer of etafilcon-A contact lens material.
- Participation in any contact lens or lens care product clinical trial within 30 days prior to study enrollment.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Unknown Facility
London, SW1E6AU, United Kingdom
Results Point of Contact
- Title
- Tom Karkkainen, OD, MS, FAAO
- Organization
- Johnson & Johnson Vision Care Inc.
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- GT60
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 19, 2015
First Posted
January 26, 2015
Study Start
December 1, 2014
Primary Completion
May 1, 2015
Study Completion
May 1, 2015
Last Updated
June 19, 2018
Results First Posted
October 5, 2016
Record last verified: 2016-10