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Effectiveness of a Marketed One-Step Peroxide Lens Care Solution in Symptomatic Contact Lens Wearers

Not Applicable
Completed
Conditions
Refractive Error
Interventions
Device: Hydrogen peroxide-based contact lens solution
Device: Habitual contact lens solution
Device: Habitual contact lenses
Registration Number
NCT01996709
Lead Sponsor
Alcon Research
Brief Summary

The purpose of this study is to assess improvement of palpebral roughness and associated symptoms with 3 months use of Clear Care®.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
142
Inclusion Criteria
  • Current biweekly or monthly silicone hydrogel contact lens wearer (excluding Air Optix® brand) and have worn these lenses bilaterally for at least three (3) months prior to Visit 1 (daily wear use only).
  • Symptoms of contact lens discomfort as defined by the protocol.
  • Habitual use of a biguanide-preserved multi-purpose solution for at least 30 days prior to Visit 1.
  • Mild to severe (grade 2-4) Investigator rated palpebral roughness in one or more zones of either eye.
  • Other protocol-specified inclusion criteria may apply.
Exclusion Criteria
  • Extended (over-night) contact lens wearer.
  • Any systemic or ocular disease or disorder (refractive disorder allowed and mild dry eye with successful contact lens wear is permitted), complicating factors or structural abnormality that would negatively affect the conduct or outcome of the study.
  • Topical ocular over the counter (OTC) or prescribed medications, with the exception of contact lens rewetting drops, within 7 days of enrollment.
  • Other protocol-specified exclusion criteria may apply.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Clear CareHydrogen peroxide-based contact lens solutionHydrogen peroxide-based contact lens solution used with habitual contact lenses for 90 days
Clear CareHabitual contact lensesHydrogen peroxide-based contact lens solution used with habitual contact lenses for 90 days
Habitual MPSHabitual contact lens solutionHabitual contact lens solution used with habitual contact lenses for 90 days
Habitual MPSHabitual contact lensesHabitual contact lens solution used with habitual contact lenses for 90 days
Primary Outcome Measures
NameTimeMethod
Mean Change From Baseline in Investigator Rated Lid Papillae Maximum Score at Day 90Baseline (Day 0), Day 90

Lid papillae (bumps on the inner eyelid) were assessed by the investigator using slit-lamp biomicroscopy and classified independently for the four palpebral zones (upper lid=1-3; lower lid=4) on a 5-point forced choice scale, where 0 = None; 1 = Slight (diffuse papillae); 2 = Mild (diffuse \& tufts papillae); 3 = Moderate (moderate \& tufts papillae); 4 = Severe (giant papillae). The maximum of the four zones was selected for the analysis. Both eyes were included in the model for analysis. A higher change value indicates a larger reduction in the severity of the lid papillae.

Secondary Outcome Measures
NameTimeMethod
Top 2 Box Percentage Agreement for "My Lenses Feel Like New" at Day 90Day 90

As interpreted and reported by the subject on a questionnaire. A 5-point Likert scale was used, where 1=strongly disagree; 2=disagree; 3=undecided; 4=agree; 5=strongly agree. The Top-2-box response (agree, strongly agree) was calculated and reported as a percentage of all responses.

Mean Frequency Score for Symptoms of Grittiness at Day 90Day 90

As interpreted and reported by the subject on a questionnaire. The subject was asked, "During a typical day in the past 2 weeks, how often did your eyes feel gritty and/or scratchy while wearing your contact lenses?" and responded on a 5-point scale (1 = Never; 2 = Rarely; 3 = Sometimes; 4 = Frequently; 5 = Constantly).

Mean Frequency Score for Symptoms of Dryness at Day 90Day 90

As reported and interpreted by the subject on a questionnaire. The subject was asked "During a typical day in the past 2 weeks, how often did your eyes feel dry?" and responded on a 5-point scale ((0 = Never; 1 = Rarely; 2 = Sometimes; 3 = Frequently; 4 = Constantly).

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