Clinical Trial of Several Contact Lenses in Extended Wear
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
-
-
Tamil Nadu
-
Chennai, Tamil Nadu, India, 600 006
- Vision Research Foundation
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Be of legal age, and be between 18 and 39 years of age.
- Signed Written Informed Consent and Investigator to record this on Case Report Form (CRF) in appropriate space.
- Require a visual correction in both eyes (Monovision not allowed)
- Require a soft contact lens spherical correction between -0.50 and -9.00D.
- Have an astigmatic correction less than 1.50D in both eyes.
- Be able to wear the lens powers available for this study.
- Be able to regularly wear the lenses on a 7 day/6 night extended wear basis (e.g. does not regularly swim more than once a week)
- Be correctable to a visual acuity of 20/30 or better in each eye.
- Have normal eyes with no evidence of abnormality or disease. For the purposes of this study a normal eye is defined as one having:
- No amblyopia.
- No evidence of lid abnormality or infection.
- No clinically significant slit lamp findings
- No other active ocular disease.
- No previous ocular surgery.
Exclusion Criteria:
- Requires concurrent ocular medication.
- Any systemic illness which would contraindicate lens wear or the medical treatment of which would affect vision or successful lens wear.
- No Clinically significant (Grade 3 or 4) slit lamp findings including corneal edema, corneal vascularization, corneal staining, tarsal abnormalities, bulbar injection, or any other abnormality of the cornea that would contraindicate contact lens wear.
- Diabetic.
- Infectious disease (e.g., hepatitis, tuberculosis) or an immunosuppressive disease (e.g., HIV).
- PMMA or RGP lens wear in the previous 8 weeks.
- Has had refractive surgery. Has had eye injury/surgery within 8 weeks immediately prior to enrolment for this study.
- Abnormal lacrimal secretions.
- Pre-existing ocular irritation that would preclude contact lens fitting.
- Keratoconus or other corneal irregularity.
- Pregnancy, lactating or planning a pregnancy at the time of enrollment only.
- Participation in any concurrent clinical trial.
- Currently wearing B&L PureVision, Ciba O2 Optix, Ciba Night & Day, CooperVision Biofinity, Vistakon ACUVUE® OASYS, or Vistakon ACUVUE®2 on an EW basis
- Has had previous adverse event(s) contraindicating EW e.g. MK or greater than 2 corneal scars which appear to be contact lens related (e.g. not trauma related).
- Has had an eye injury or surgery within the last eight weeks.
Study Plan
How is the study designed?
Design Details
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Active Comparator: senofilcon A contact lens
ACUVUE OASYS
|
1 week extended wear contact lens
|
|
Active Comparator: lotrafilcon A contact lens
NIGHT&DAY
|
1 week extended wear contact lens
|
|
Active Comparator: lotrafilcon B contact lens
O2Optix
|
1 week extended wear contact lens
|
|
Active Comparator: balafilcon A contact lens
PureVision
|
1 week extended wear contact lens
|
|
Active Comparator: comfilcon A contact lens
Biofinity
|
1 week extended wear contact lens
|
|
Active Comparator: etafilcon A contact lens
ACUVUE 2
|
1 week extended wear contact lens
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Incidence of Corneal Infiltrative Events
Time Frame: 52 weeks
|
Extended wear is defined as 7 days, 6 nights of lens wear, weekly replacement of lenses.
Incidence was calculated as the number of subjects with event divided by the total number of subjects assigned to that lens type.
|
52 weeks
|
|
Incidence of Adverse Events
Time Frame: 52 weeks
|
Occurrence of any Adverse Event by study lens.
Incidence was calculated as the number of subjects with event divided by the total number of subjects assigned to that lens type.
|
52 weeks
|
Collaborators and Investigators
Sponsor
Sponsor
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 (Estimate)
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-4472
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