Pre-Lens Tear Film Performance of Silicone Hydrogel Daily Disposable Contact Lenses
Randomized Cross-Over Evaluation of Silicone Hydrogel Daily Disposable Soft Contact Lenses
1 other identifier
interventional
39
0 countries
N/A
Brief Summary
The purpose of this study was to compare the pre-lens tear film stability of DAILIES TOTAL1® silicone hydrogel daily disposable contact lenses with that of two other silicone hydrogel daily disposable contact lenses.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Mar 2012
Shorter than P25 for not_applicable
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
March 1, 2012
CompletedFirst Submitted
Initial submission to the registry
March 6, 2012
CompletedFirst Posted
Study publicly available on registry
March 8, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2012
CompletedResults Posted
Study results publicly available
June 24, 2013
CompletedJune 24, 2013
June 1, 2013
1 month
March 6, 2012
April 22, 2013
June 6, 2013
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Pre-Lens Non-Invasive Tear Break-Up Time (PL-NITBUT)
The pre-lens tear film is the layer of tears located on top of the contact lens (i.e., between the eye lid and the contact lens). The time required for a dry spot to appear on the corneal surface after blinking is referred to as the tear film break-up time. Circular images were projected onto the corneal surface using a CA-1000 topographer, and the tear film reflection was observed on a 30-inch flat panel monitor. PL-NITBUT was recorded at the first sign of image distortion. Three measurements were taken and averaged together. A higher number represents a longer tear film break up time.
Day 7, 16 hours after lens insertion
Study Arms (3)
Dailies Total 1
EXPERIMENTALDelefilcon A, followed by narafilcon A and filcon II 3 in randomized order. Each product worn for 1 week in a daily wear, daily disposable manner.
TruEye
ACTIVE COMPARATORNarafilcon A, followed by delefilcon A and filcon II 3 in randomized order. Each product worn for 1 week in a daily wear, daily disposable manner.
Clariti
ACTIVE COMPARATORFilcon II 3, followed by narafilcon A and delefilcon A in randomized order. Each product worn for 1 week in a daily wear, daily disposable manner.
Interventions
Silicone hydrogel contact lens for single use, daily disposable wear.
Silicone hydrogel contact lens for single use, daily disposable wear.
Silicone hydrogel contact lens for single use, daily disposable wear
Eligibility Criteria
You may qualify if:
- Be of legal age of consent and sign written Informed Consent document, or if under legal age, have written consent of parent or guardian to participate.
- Require vision correction in both eyes.
- Wear either daily disposable contact lenses or weekly/monthly replacement contact lenses in powers between -0.50 and -10.00 diopters, cylinder ≤0.75 diopter, no ADD correction.
- Wear habitual contact lenses an average of 12-14 hours per day, at least 5 days per week.
- Willing and able to wear study contact lenses 16 hours per day.
- Able to achieve visual acuity of at least 6/7.5 in each eye with study lenses.
You may not qualify if:
- Currently wearing DAILIES TOTAL1®, 1-DAY ACUVUE® TRUEYE™, or Clariti™ 1day contact lenses.
- Require monovision correction.
- Any systemic or ocular disease or disorder (refractive disorder allowed and dry eye permitted), complicating factors, or structural abnormality that would negatively affect the conduct or outcome of the study.
- Ocular surgery/trauma within the last 6 months.
- Topical or systemic antibiotic use within 7 days of enrollment.
- Topical ocular or systemic corticosteroid use within 14 days of enrollment.
- Pregnant and nursing women.
- Participation in any other ophthalmic drug or device clinical trial within 30 days of enrollment.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Alcon Researchlead
- Aston Universitycollaborator
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Jami Kern, PhD
- Organization
- Alcon Research, Ltd.
Study Officials
- STUDY DIRECTOR
Jami Kern, PhD
Alcon Research
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 6, 2012
First Posted
March 8, 2012
Study Start
March 1, 2012
Primary Completion
April 1, 2012
Study Completion
April 1, 2012
Last Updated
June 24, 2013
Results First Posted
June 24, 2013
Record last verified: 2013-06