Comparative Study of Two Marketed 1-day Soft Contact Lenses

Study Overview
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Brief Summary
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This study is designed to evaluate ocufilcon D lens compared to ocufilcon B lens in a 1-week crossover, daily wear regimen.

Detailed Description
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This study is designed to evaluate 2 daily disposable contact lenses that are both currently cleared for the USA market. Study of the ocufilcon D lens compared to the ocufilcon B lens in a 1-week crossover, daily wear regimen. The primary objective is the comparison of fitting characteristics. The secondary objective is the comparison of comfort, end of day comfort and dryness measures.

Official Title
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Clinical Performance of Ocufilcon D With a Wetting Agent to Ocufilcon B

Conditions
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Myopia

Intervention / Treatment
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* Device: ocufilcon D
* Device: ocufilcon B


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Has had a self reported oculo-visual examination in the last two years. Is able to wear the study lenses for at least eight hours a day, seven days a week Aged 18-40 years and has full legal capacity as a volunteer Has a distance contact lens prescription from -0.25 and -6.00D inclusive Has spectacle astigmatism of < 1.00D in each eye Baseline vision of 20/20 best-corrected in each eye. Is correctable to at least 20/25 distance visual acuity with study contact lenses in each eye Has read and understood the consent form and willing to sign consent form Willing and able to follow participant instructions and attend the required study visits Has worn soft contact lenses for at least two weeks prior to the study (daily wear only). Exclusion Criteria: Currently wears contact lenses on an extended wear basis. Not a current or past wearer of the ocufilcon B 52% 1-day lenses. Has undergone anterior ocular surgery Is aphakic Has never worn contact lenses before Has any systemic disease which clinically contraindicates contact lenses Has active ocular disease or severe insufficiency of lacrimal secretion (dry eye) Use of systemic or topical medications that will affect ocular health or visual performance Slit lamp findings with a grading of greater than 1.0 using the grading scales in Appendix 3 Not possible to achieve a satisfactory fit with the lens design used in the study Has keratoconus or other corneal irregularity Participating in another eye-related clinical trial Pregnant, lactating or planning a pregnancy

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: ocufilcon D<br>Participants wear a first pair of lenses for one week and then crossover and wear an alternate second pair of lenses for one week. | Device: ocufilcon B<br>* Participants wear a first pair of lenses for one week and then crossover and wear an alternate second pair of lenses for one week.<br>* Other names: oculfilcon B (Daily wear soft contact lens);|
| Active Comparator: ocufilcon B<br>Participants wear a first pair of lenses for one week and then crossover and wear an alternate second pair of lenses for one week. | Device: ocufilcon D<br>* Participants wear a first pair of lenses for one week and then crossover and wear an alternate second pair of lenses for one week.<br>* Other names: oculfilcon D (Daily wear soft contact lens);|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Lens Fit - Decentration After Insertion | The ophthalmologist's objective assessment of lens fit measurement of decentration after insertion (20 minutes settling) of Pair #1 (measured at baseline visit) and Pair #2 (measured at 7 days after baseline visit). (mm, horizontal and vertical). | Baseline and 7 days from baseline visit | 
| Lens Fit - Decentration at One Week | The ophthalmologist's objective assessment of lens fit measurement of decentration of Pair #1 (measured at 7 days after baseline visit) and Pair #2 (measured at 14 days after baseline visit). Each pair worn for one week daily disposable wear basis (at least 8 hours per day, 7 days per week). Lenses worn minimum 2 hours prior to visit. (mm, horizontal and vertical). | 7 days and 14 days from baseline visit | 
| Lens Fit - Tightness After Insertion | The ophthalmologist's rating of lens fit measurement of push-up tightness after insertion (20 minutes settling) of Pair #1 (measured at baseline visit) and Pair #2 (measured at 7 days after baseline visit). (0-100%, 5% steps, 0%=excessively loose, 50%=optimum, 100%=excessively tight ). | Baseline and 7 days from baseline visit | 
| Lens Fit - Tightness at One Week | The ophthalmologist's rating of lens fit measurement of push-up tightness of Pair #1 (measured at 7 days after baseline visit) and Pair #2 (measured at 14 days after baseline visit). Each pair worn for one week daily disposable wear basis (at least 8 hours per day, 7 days per week). Lenses worn minimum 2 hours prior to visit. (0-100%, 5% steps, 0%=excessively loose, 50%=optimum, 100%=excessively tight ). | 7 days and 14 days from baseline visit | 
| Lens Fit - Post-Blink Lens Movement After Insertion | The ophthalmologist's objective assessment of lens fit measurement of post-blink lens movement after insertion (20 minutes settling) of Pair #1 (measured at baseline visit) and Pair #2 (measured at 7 days after baseline visit). (mm). | Baseline and 7 days from baseline visit | 
| Lens Fit - Post-Blink Lens Movement Prior to Removal | The ophthalmologist's objective assessment of lens fit measurement of post-blink lens movement prior to removal of Pair #1 (measured at 7 days after baseline visit) and Pair #2 (measured at 14 days after baseline visit). (mm). | 7 days and 14 days from baseline visit | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Overall Preference - Comfort After Insertion | Participant's subjective rating for overall preference of lens comfort immediately after insertion for lens pair #1 or Pair #2. Surveyed at 14 days after baseline visit. (Each pair worn for one week daily disposable wear basis, at least 8 hours per day, 7 days per week). Rated by Likert scale, (forced choices - Strongly Prefer New Lenses (Week 2), Slightly Prefer New Lenses (Week 2), No Preference, Slightly Prefer Previous Lenses (Week 1), Strongly Prefer Previous Lenses (Week 1). Reported as Strongly Prefer Test Lenses, Slightly Prefer Test Lenses, No Preference, Slightly Prefer Control Lenses, Strongly Prefer Control Lenses. | 14 days from baseline visit | 
| Overall Preference - Comfort Before Removal | Participant's subjective rating for overall preference of lens comfort immediately before removal for lens pair #1 or Pair #2. Surveyed at 14 days after baseline visit. (Each pair worn for one week daily disposable wear basis, at least 8 hours per day, 7 days per week). Rated by Likert scale, (forced choices - Strongly Prefer New Lenses (Week 2), Slightly Prefer New Lenses (Week 2), No Preference, Slightly Prefer Previous Lenses (Week 1), Strongly Prefer Previous Lenses (Week 1). Reported as Strongly Prefer Test Lenses, Slightly Prefer Test Lenses, No Preference, Slightly Prefer Control Lenses, Strongly Prefer Control Lenses. | 14 days from baseline visit | 
| Overall Preference - Dryness After Insertion | Participant's subjective rating for overall preference of lens dryness immediately after insertion for lens pair #1 or Pair #2. Surveyed at 14 days after baseline visit. (Each pair worn for one week daily disposable wear basis, at least 8 hours per day, 7 days per week). Rated by Likert scale, (forced choices - Strongly Prefer New Lenses (Week 2), Slightly Prefer New Lenses (Week 2), No Preference, Slightly Prefer Previous Lenses (Week 1), Strongly Prefer Previous Lenses (Week 1). Reported as Strongly Prefer Test Lenses, Slightly Prefer Test Lenses, No Preference, Slightly Prefer Control Lenses, Strongly Prefer Control Lenses. | 14 days from baseline visit | 
| Overall Preference - Dryness Before Removal | Participant's subjective rating for overall preference of lens dryness immediately before removal for lens pair #1 or Pair #2. Surveyed at 14 days after baseline visit. (Each pair worn for one week daily disposable wear basis, at least 8 hours per day, 7 days per week). Rated by Likert scale, (forced choices - Strongly Prefer New Lenses (Week 2), Slightly Prefer New Lenses (Week 2), No Preference, Slightly Prefer Previous Lenses (Week 1), Strongly Prefer Previous Lenses (Week 1). Reported as Strongly Prefer Test Lenses, Slightly Prefer Test Lenses, No Preference, Slightly Prefer Control Lenses, Strongly Prefer Control Lenses. | 14 days from baseline visit | 
| Overall Preference - Handling, Inserting | Participant's subjective rating for overall preference of lens ease of handling at inserting for lens pair #1 or Pair #2. Surveyed at 14 days after baseline visit. (Each pair worn for one week daily disposable wear basis, at least 8 hours per day, 7 days per week). Rated by Likert scale, (forced choices - Strongly Prefer New Lenses (Week 2), Slightly Prefer New Lenses (Week 2), No Preference, Slightly Prefer Previous Lenses (Week 1), Strongly Prefer Previous Lenses (Week 1). Reported as Strongly Prefer Test Lenses, Slightly Prefer Test Lenses, No Preference, Slightly Prefer Control Lenses, Strongly Prefer Control Lenses. | 14 days from baseline visit | 
| Overall Preference - Handling, Removing | Participant's subjective rating for overall preference of lens ease of handling at removing for lens pair #1 or Pair #2. Surveyed at 14 days after baseline visit. (Each pair worn for one week daily disposable wear basis, at least 8 hours per day, 7 days per week). Rated by Likert scale, (forced choices - Strongly Prefer New Lenses (Week 2), Slightly Prefer New Lenses (Week 2), No Preference, Slightly Prefer Previous Lenses (Week 1), Strongly Prefer Previous Lenses (Week 1). Reported as Strongly Prefer Test Lenses, Slightly Prefer Test Lenses, No Preference, Slightly Prefer Control Lenses, Strongly Prefer Control Lenses. | 14 days from baseline visit | 
| Overall Lens Pair Preference | Participant's subjective rating for overall preference for lens pair #1 or Pair #2 based on comfort, vision and handling. Surveyed at 14 days after baseline visit. (Each pair worn for one week daily disposable wear basis, at least 8 hours per day, 7 days per week). Rated by Likert scale, (forced choices - Strongly Prefer New Lenses (Week 2), Slightly Prefer New Lenses (Week 2), No Preference, Slightly Prefer Previous Lenses (Week 1), Strongly Prefer Previous Lenses (Week 1). Reported as Strongly Prefer Test Lenses, Slightly Prefer Test Lenses, No Preference, Slightly Prefer Control Lenses, Strongly Prefer Control Lenses. | 14 days from baseline visit | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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contact lenses