Clinical Performance Comparison of Two Contact Lenses
Clinical Evaluation of Two Silicone Hydrogel Frequent Replacement Contact Lenses
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
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Arkansas
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North Little Rock, Arkansas, United States, 72116
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California
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Campbell, California, United States, 95008
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Colorado
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Colorado Springs, Colorado, United States, 80909
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Florida
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Jacksonville, Florida, United States, 32205
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Jacksonville, Florida, United States, 32256
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Miami, Florida, United States, 33155
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Winter Park, Florida, United States, 32792
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Georgia
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Roswell, Georgia, United States, 30076
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Massachusetts
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Boston, Massachusetts, United States, 02114
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Cambridge, Massachusetts, United States, 02140
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Missouri
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Blue Springs, Missouri, United States, 64015
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New York
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New York, New York, United States, 10001
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Ohio
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Chagrin Falls, Ohio, United States, 44023
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North Olmsted, Ohio, United States, 44070
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Warren, Ohio, United States, 44484
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Pennsylvania
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State College, Pennsylvania, United States, 16801
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Rhode Island
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Warwick, Rhode Island, United States, 02888
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South Dakota
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Chamberlain, South Dakota, United States, 57325
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Hot Springs, South Dakota, United States, 57747
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Tennessee
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Bartlett, Tennessee, United States, 38134
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Brentwood, Tennessee, United States, 37027
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Memphis, Tennessee, United States, 38119
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Texas
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Tyler, Texas, United States, 757703
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Vermont
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Burlington, Vermont, United States, 05401
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Wisconsin
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West Allis, Wisconsin, United States, 53227
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Existing daily soft lens wearer.
- Require a distance visual correction in both eyes.
- Have a contact lens spherical distance refraction between -1.00D and -6.00D.
- Have refractive astigmatism less than or equal to 1.00D in both eyes.
- Achieve 20/30 or better corrected distance acuity.
- Have normal eyes with no evidence of abnormality or disease.
Exclusion Criteria:
- Requires presbyopic correction.
- Requires ocular medications.
- Grade 3 or 4 ocular abnormalities.
- Grade 3 corneal staining in more than one region.
- Has had refractive surgery.
- Any other injury or ocular surgery within 8 weeks prior to study enrollment.
- Has abnormal lacrimal secretions.
- Pre-existing ocular irritation that would preclude contact lens fitting.
- Has keratoconus or other corneal irregularity.
- Polymethyl methacrylate (PMMA), Hybrid or Rigid Gas Permeable (RGP) wear in the previous 8 weeks.
- Wears habitual contact lenses that are toric, multifocal or worn extended wear.
- Any systemic illness which would contraindicate lens wear or the medical treatment of would affect vision or successful lens wear.
- Diabetic.
- Infectious or immunosuppressive disease.
- History of chronic eye disease (e.g glaucoma or age related macular degeneration).
- Pregnancy, lactation or planning pregnancy at time of enrollment.
- Participation in any concurrent clinical trial or in another trial in the last 30 days.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: SINGLE
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
ACTIVE_COMPARATOR: senofilcon A both eyes
soft contact lens worn daily for 2 weeks, with a 2-week replacement regimen.
|
soft contact lens, 2-week replacement indicated
|
|
ACTIVE_COMPARATOR: lotrafilcon B both eyes
soft contact lens worn daily for 4 weeks, with a 4-week replacement regimen
|
soft contact lens with a 4-week replacement indicated.
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Average Corneal Staining
Time Frame: 2 weeks
|
The overall score is the average of the total scores of each of five regions of the cornea.
The minimum average score is 0 and the maximum average score is 3. Corneal surface abnormality as indicated by the severity of staining over five regions of the cornea (central, superior, inferior, nasal and temporal) was assessed by the investigator using the following scale: 0=none, 1=slight, 2=moderate, 3=severe.
|
2 weeks
|
|
Visual Acuity
Time Frame: 2 weeks
|
Visual acuity was assessed by the investigator using the Snellen chart and converted to the logarithm of the minimum angle of resolution (logMAR).
logMAR ideal is 0.0 and represents 20/20 Snellen visual acuity.
logMAR values > 0.00 indicate vision poorer than the ideal and values <0.00 indicate vision greater than the ideal.
|
2 weeks
|
|
Overall Comfort
Time Frame: 2 weeks
|
After two weeks of wear, subjects responded to a phone survey question regarding overall comfort of the study contact lenses (senofilcon A and lotrafilcon B) using the following scale: 5=excellent, 4=very good, 3=good, 2=fair, 1=poor.
|
2 weeks
|
|
Overall Comfort
Time Frame: 2 weeks and 4 weeks
|
After four weeks of wear, subjects responded to a phone survey question regarding overall comfort of the study contact lenses (lotrafilcon B)using the following scale: 5=excellent, 4=very good, 3=good, 2=fair, 1=poor.
|
2 weeks and 4 weeks
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Limbal Redness
Time Frame: 2 weeks
|
The investigator assessed limbal redness using the following scale: 0=None, 1=Trace, 2=Mild, 3=Moderate, 4=Severe
|
2 weeks
|
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Bulbar Redness
Time Frame: 2 weeks
|
The investigator assessed bulbar redness using the following scale: 0=None, 1=Trace, 2=Mild, 3=Moderate, 4=Severe
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2 weeks
|
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Symptoms of Dryness
Time Frame: 2 weeks
|
Subjects responded to a phone survey question regarding the frequency of the sensation of dryness while wearing the study contact lenses using the following scale: 1=Extreme, 2=Moderate, 3=Slight, 4=None
|
2 weeks
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Study Director: Sheila, B Hickson-Curran, BSc, MCOptom, Johnson & Johnson Vision Care, Inc.
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-0907
- PHNX-518
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