Bilateral Dispensing Study of Fanfilcon A Toric Versus Enfilcon A Toric Lenses
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Ontario
-
Waterloo, Ontario, Canada, N2L 3G1
- Center for Contact Lens Research, University of Waterloo
-
-
-
-
California
-
Berkeley, California, United States, 94704
- Clinical Research Center, University of California, Berkeley
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Are at least 17 years of age for Canada and 18 years of age for the USA and have full legal capacity to volunteer;
- Have read and signed an information consent letter;
- Are willing and able to follow instructions and maintain the appointment schedule;
- Are an adapted soft contact lens wearer;
Require spectacle lens powers in both eyes;
- Sphere: between -0.50 to -6.00 diopters and
- Astigmatism: between -1.25 to -2.00 and
- Axis: 180 ± 20 degrees
- Are willing to wear contact lens in both eyes;
- Have manifest refraction visual acuities (VA) equal to or better than logMAR equivalent of 20/25 in each eye;
- To be eligible for lens dispensing, the subject must have VA of logMAR equivalent of 20/30 or better in each eye with the study lenses and the investigator must judge the fit including toric orientation as acceptable;
Exclusion Criteria:
- Are participating in any concurrent clinical or research study;
- Have any known active* ocular disease and/or infection;
- Have a systemic condition that in the opinion of the investigator may affect a study outcome variable;
- Are using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable;
- Have known sensitivity to the diagnostic pharmaceuticals to be used in the study;
- Are pregnant, lactating or planning a pregnancy at the time of enrolment (by verbal confirmation at the screening visit);
- Are aphakic;
- Have undergone refractive error surgery;
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Double
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: fanfilcon A
Each subject randomized to wear either the test or control as a matched pair and cross over to the second matched pair.
|
contact lens
contact lens
|
|
Active Comparator: enfilcon A
Each subject randomized to wear either the test or control as a matched pair and cross over to the second matched pair.
|
contact lens
contact lens
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Comfort (Subjective Rating Scale)
Time Frame: Dispensing (Baseline) and 2 weeks
|
Participant rating for comfort at dispense visit and at the 2 week follow-up on a subjective rating scale (0-100, 0=cannot be worn.
Causes pain,100=Cannot be felt ever)
|
Dispensing (Baseline) and 2 weeks
|
|
Comfort Preference
Time Frame: Dispensing (Baseline) and 2 weeks
|
Subjective assessment for comfort preference for each lens pair.
Choices: fanfilcon A lens, enfilcon A lens, No preference.
|
Dispensing (Baseline) and 2 weeks
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Meng Lin, OD PhD, Clinical Research Center, University of California, Berkeley
- Principal Investigator: Lyndon Jones, PhD FCO, Center for Contact Lens Research, University of Waterloo
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- CV-15-13
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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