Clinical Trial of Several Contact Lenses in Extended Wear
1 other identifier
interventional
350
1 country
1
Brief Summary
The study is to clinically evaluate currently marketed contact lenses when used in an extended wear modality of up to seven days/six nights.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Feb 2007
Typical duration 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
February 1, 2007
CompletedFirst Submitted
Initial submission to the registry
September 26, 2008
CompletedFirst Posted
Study publicly available on registry
September 30, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2009
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2009
CompletedResults Posted
Study results publicly available
May 15, 2015
CompletedJune 29, 2015
June 1, 2015
2.6 years
September 26, 2008
September 11, 2014
June 1, 2015
Conditions
Outcome Measures
Primary Outcomes (2)
Incidence of Corneal Infiltrative Events
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
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
Study Arms (6)
senofilcon A contact lens
ACTIVE COMPARATORACUVUE OASYS
lotrafilcon A contact lens
ACTIVE COMPARATORNIGHT\&DAY
lotrafilcon B contact lens
ACTIVE COMPARATORO2Optix
balafilcon A contact lens
ACTIVE COMPARATORPureVision
comfilcon A contact lens
ACTIVE COMPARATORBiofinity
etafilcon A contact lens
ACTIVE COMPARATORACUVUE 2
Interventions
Eligibility Criteria
You may qualify if:
- 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.
You may not qualify if:
- 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.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Vision Research Foundation
Chennai, Tamil Nadu, 600 006, India
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Limitations and Caveats
Cautions for results: low completed enrollment numbers and number of non-neophytes lower than required per protocol. Arms not gender matched; Proportion of neophytes/non-neophytes not balanced; High rate of drop-out among subjects enrolled.
Results Point of Contact
- Title
- Kathy Osborn, OD, MS, FAAO, FBCLA Senior Principal Research Optometrist
- Organization
- Vistakon
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- GT60
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 26, 2008
First Posted
September 30, 2008
Study Start
February 1, 2007
Primary Completion
September 1, 2009
Study Completion
September 1, 2009
Last Updated
June 29, 2015
Results First Posted
May 15, 2015
Record last verified: 2015-06