Dispensing Evaluation of a Prototype Contact Lens and a Marketed Contact Lens
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Florida
-
Jacksonville, Florida, United States
-
-
Virginia
-
Salem, Virginia, United States
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- The subject must be at least 18 years of age and no more than 39 years of age.
- The subject is a current spherical soft contact lens wearer (defined as a minimum of 6 hours of DW for a minimum of 1 month prior to the study) and willing to wear the study lenses on a daily wear basis (defined as a minimum of 6 hours of wear per day at least five days of the week) for the duration of the study.
- The subject's optimal vertexed spherical equivalent distance correction must be between -1.00 and - 9.00D.
- Any cylinder power must be ≤ -0.75D.
- The subject must have visual acuity best correctable to 20/25+3 or better for each eye.
- The subject must read and sign the Statement of Informed Consent.
- The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol.
Exclusion Criteria:
- Ocular or systemic allergies or disease which might interfere with contact lens wear.
- Systemic disease or use of medication which might interfere with contact lens wear.
- Clinically significant (grade 3 or 4) corneal edema, corneal vascularization, corneal staining, or any other abnormalities of the cornea which would contraindicate contact lens wear.
- Clinically significant (grade 3 or 4) tarsal abnormalities or bulbar injection which might interfere with contact lens wear.
- Any ocular infection.
- Any corneal distortion resulting from previous hard or rigid gas permeable contact lens wear.
- Pregnancy or lactation.
- Diabetes.
- Infectious diseases (e.g. hepatitis, tuberculosis) or an immuno-suppressive disease (e.g. HIV).
- Habitual contact lens type is toric, multifocal, or is worn as extended wear.
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 |
|---|---|
|
Other: galyfilcon A prototype lens / lotrafilcon B lens
The galyfilcon A prototype lenses will be worn during the first period and lotrafilcon B lenses will be worn during the second period.
Each period consists of daily lens wear for one week.
|
Silicone hydrogel contact lens
Silicon Hydrogel contact lens
|
|
Other: lotrafilcon B lens / galyfilcon A prototype lens
The lotrafilcon B lenses will be worn during the first period and galyfilcon A prototype lenses will be worn during the second period.
Each period consists of daily lens wear for one week.
|
Silicone hydrogel contact lens
Silicon Hydrogel contact lens
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Visual Acuity Monocular
Time Frame: after 1 week of lens wear
|
Snellen monocular visual acuity measurement
|
after 1 week of lens wear
|
|
Visual Acuity Binocular
Time Frame: after 1 week of lens wear
|
Snellen binocular visual acuity measurement
|
after 1 week of lens wear
|
|
Subjective Assessment of Lens Comfort
Time Frame: after 1 week of lens wear
|
Contact Lens User Experience (CLUE)TM questionnaire: A validated patient-reported outcomes questionnaire to assess patient-experience attributes of soft, disposable contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65.
Scores follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response.
|
after 1 week of lens wear
|
|
Subjective Assessment of Quality of Vision
Time Frame: after 1 week of lens wear
|
Contact Lens User Experience (CLUE)TM questionnaire: A validated patient-reported outcomes questionnaire to assess patient-experience attributes of soft, disposable contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65.
Scores follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response.
|
after 1 week of lens wear
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Limbal Redness
Time Frame: after 1 week of lens wear
|
Scale of 0 to 4, where 0=None, 2=Trace, 3=Mild, 4=Moderate, 5=Severe.
|
after 1 week of lens wear
|
|
Bulbar Redness
Time Frame: after 1 week of lens wear
|
Scale of 0 to 4, where 0=None, 2=Trace, 3=Mild, 4=Moderate, 5=Severe.
|
after 1 week of lens wear
|
|
Subjective Assessment of Lens Comfort
Time Frame: 10 minutes after lens insertion at time of initial lens fitting
|
Contact Lens User Experience (CLUE)TM questionnaire: A validated patient-reported outcomes questionnaire to assess patient-experience attributes of soft, disposable contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65.
Scores follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response.
|
10 minutes after lens insertion at time of initial lens fitting
|
Collaborators and Investigators
Sponsor
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
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
- CR-1636AZ
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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