Myopia
Conditions
Keywords
CLEAR CARE®, AOSEPT® Plus, ReNu MultiPlus®, silicone hydrogel, hydrogel, ACUVUE® 2®, AIR OPTIX® AQUA, eyelid response, wettability, contamination, contact lenses
Brief summary
The purpose of this study was to assess and compare the effect of the repeated usage of 2 different care systems (one hydrogen peroxide based cleaning and disinfecting system and one PHMB containing multipurpose system) with ACUVUE® 2® and AIR OPTIX® AQUA contact lenses worn on a daily wear basis for a 3-month period.
Detailed description
This study was divided into 2 periods, a Screening Phase and an Investigational Phase. During the Screening Phase, subjects were fitted and dispensed with either ACUVUE® 2® (for current hydrogel wearers) or AIR OPTIX® AQUA (for current silicone hydrogel wearers) contact lenses and used COMPLETE® MPS Easy Rub® Formula to clean and disinfect their lenses. At the completion of the Screening Phase, the symptomatic status of the subjects was re-assessed. Those subjects who qualified proceeded to the Investigational Phase and were dispensed with new pair of study contact lenses identical to the lenses they wore during the Screening Phase to use in conjunction with the allocated study care product, CLEAR CARE® /AOSEPT® Plus or ReNu MultiPlus®.
Interventions
PHMB 0.0001% and poloxamer 0.05% multipurpose solution
Hydrogen peroxide-based cleaning and disinfection system
Polyaminopropyl biguanide (PHMB) preserved multipurpose solution
Hydrogel contact lenses worn on a daily wear basis for 14 days (Screening Phase) and 3 months (Investigational Phase). During the Investigational Phase, the contact lenses lenses were worn a minimum of six hours per day, 5 days per week, with a fresh pair dispensed every 2 weeks.
Silicone hydrogel contact lenses worn on a daily wear basis for 30 days (Screening Phase) and 3 months (Investigational Phase). During the Investigational Phase, the contact lenses lenses were worn a minimum of six hours per day, 5 days per week, with a fresh pair dispensed monthly.
Sponsors
Study design
Eligibility
Inclusion criteria
* Read and understand the Participant Information Sheet; * Read, sign, and date an Informed Consent; * Successfully wearing a frequent replacement hydrogel or silicone hydrogel contact lens brand under a frequent replacement (biweekly or monthly) daily wear modality; * Classified as symptomatic according to protocol-specified criteria; * Agree to wear study contact lenses as directed for the duration of the study; * Best corrected visual acuity (BCVA) of 6/9 or better in each eye; * Other protocol-defined inclusion criteria may apply.
Exclusion criteria
* Any known sensitivity or intolerance to any of the contact lenses or contact lens care products to be used; * Monocular vision (only one eye with functional vision or only one eye fitted with contact lenses); * History of seasonal allergies, which may have an adverse impact on contact lens wear, or data and information obtained in this study; * Systemic disease or use of medication which might interfere with contact lens wear or produce dry eye side effects; * Ocular allergies or ocular disease which might interfere with contact lens wear or data and information obtained in this study; * Active ocular infection; * Use of any concomitant topical ocular medications during the study period; * Significant ocular anomaly; * Previous ocular surgery; * History of recent, significant changes in visual acuity; * Any medical condition that might be prejudicial to the study; * Pregnant, planning to be become pregnant, or lactating at time of enrollment; * Any infectious disease (e.g. hepatitis, tuberculosis), immunosuppressive disease (e.g. HIV), or diabetes; * Participation in an investigational drug or device study within 30 days of entering study; * Other protocol-defined
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Maximum Papillae | Baseline (Day 0), Month 3 | Eyelid papillae (bumps on the inner eyelid) were recorded separately for three zones of the upper lid and overall for the lower lid on a 5-point forced choice scale: 0 = None; 1 = Slight (diffuse papillae); 2 = Mild (diffuse & tufts papillae); 3 = Moderate (moderate & tufts papillae); 4 = Severe (giant papillae). The maximum value represents the worse grade in any zone. Both eyes were included in the model for analysis. Contact lenses were not worn for this assessment. |
| Maximum Eyelid Hyperaemia | Baseline (Day 0), Month 3 | Eyelid hyperaemia (redness) was recorded separately for three zones of the upper lid and overall for the lower lid on a 5-point forced choice scale: 0 = Clear; 1 = Slight redness; 2 = Mild redness; 3 = Moderate redness; 4 = Severe redness). The maximum value represents the worst grade in any zone. Both eyes were included in the model for analysis. Contact lenses were not worn for this assessment. |
| Mean Upper Eyelid Redness | Baseline (Day 0), Month 3 | The contact lenses were removed and upper eyelid redness was objectively measured through digital images. The coverage of the palpebral surface by blood vessels is expressed as percentage of the total surface measured. Both eyes were included in the model for analysis. Contact lenses were not worn for this assessment. |
| Mean Upper Eyelid Margin Staining | Baseline (Day 0), Month 3 | The contact lens was removed and ophthalmic dye was instilled. Upper eyelid margin staining was objectively measured through digital images. The extent of true staining (i.e., the total area of lid margin covered by staining) was recorded. Both eyes were included in the model for analysis. Contact lenses were not worn for this assessment. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Median Non-Invasive Pre-Lens Tear Film Break Up Time (PL-NIBUT) | Month 3 | The pre-lens tear film is the layer of tears located on top of the contact lens (i.e., between the eyelid and the contact lens). The time required for a dry spot to appear on the pre-lens surface after blinking is referred to as the pre-lens tear film break up time. PL-NIBUT was evaluated using a biomicroscope with a diffuse illumination source, i.e., Tearscope. A longer PL-NIBUT indicates a more stable tear film and greater on-eye lens wettability. Three PL-NIBUT measurements were recorded, and the median value was used for analysis. Both eyes were included in the model for analysis. Contact lenses were on-eye for this assessment. |
Participant flow
Pre-assignment details
Of the 100 participants enrolled, 21 were exited as screen failures prior to initiation of the Investigational Phase. This reporting group includes all participants randomized into the Investigational Phase (79).
Participants by arm
| Arm | Count |
|---|---|
| AOSEPT Plus AOSEPT® Plus contact lens solution used with etafilcon A contact lenses or lotrafilcon B contact lenses for 3 months (Investigational Phase) | 35 |
| ReNu MultiPlus ReNu MultiPlus® contact lens solution used with etafilcon A contact lenses or lotrafilcon B contact lenses for 3 months (Investigational Phase) | 36 |
| Total | 71 |
Baseline characteristics
| Characteristic | AOSEPT Plus | ReNu MultiPlus | Total |
|---|---|---|---|
| Age, Continuous | 35.7 years STANDARD_DEVIATION 11.1 | 37.1 years STANDARD_DEVIATION 10.7 | 36.4 years STANDARD_DEVIATION 10.9 |
| Sex: Female, Male Female | 21 Participants | 25 Participants | 46 Participants |
| Sex: Female, Male Male | 14 Participants | 11 Participants | 25 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — |
| other Total, other adverse events | 3 / 39 | 0 / 39 |
| serious Total, serious adverse events | 2 / 39 | 2 / 39 |
Outcome results
Maximum Eyelid Hyperaemia
Eyelid hyperaemia (redness) was recorded separately for three zones of the upper lid and overall for the lower lid on a 5-point forced choice scale: 0 = Clear; 1 = Slight redness; 2 = Mild redness; 3 = Moderate redness; 4 = Severe redness). The maximum value represents the worst grade in any zone. Both eyes were included in the model for analysis. Contact lenses were not worn for this assessment.
Time frame: Baseline (Day 0), Month 3
Population: This analysis population includes all participants who completed the study as per the protocol, minus missing responses.
| Arm | Measure | Group | Value (MEDIAN) |
|---|---|---|---|
| AOSEPT Plus | Maximum Eyelid Hyperaemia | Baseline (Day 0) | 2.00 units on a scale |
| AOSEPT Plus | Maximum Eyelid Hyperaemia | Month 3 | 2.00 units on a scale |
| ReNu MultiPlus | Maximum Eyelid Hyperaemia | Baseline (Day 0) | 2.00 units on a scale |
| ReNu MultiPlus | Maximum Eyelid Hyperaemia | Month 3 | 2.00 units on a scale |
Maximum Papillae
Eyelid papillae (bumps on the inner eyelid) were recorded separately for three zones of the upper lid and overall for the lower lid on a 5-point forced choice scale: 0 = None; 1 = Slight (diffuse papillae); 2 = Mild (diffuse & tufts papillae); 3 = Moderate (moderate & tufts papillae); 4 = Severe (giant papillae). The maximum value represents the worse grade in any zone. Both eyes were included in the model for analysis. Contact lenses were not worn for this assessment.
Time frame: Baseline (Day 0), Month 3
Population: This analysis population includes all participants who completed the study as per the protocol, minus missing responses.
| Arm | Measure | Group | Value (MEDIAN) |
|---|---|---|---|
| AOSEPT Plus | Maximum Papillae | Baseline (Day 0) | 1.50 Units on a scale |
| AOSEPT Plus | Maximum Papillae | Month 3 | 1.50 Units on a scale |
| ReNu MultiPlus | Maximum Papillae | Baseline (Day 0) | 1.00 Units on a scale |
| ReNu MultiPlus | Maximum Papillae | Month 3 | 1.00 Units on a scale |
Mean Upper Eyelid Margin Staining
The contact lens was removed and ophthalmic dye was instilled. Upper eyelid margin staining was objectively measured through digital images. The extent of true staining (i.e., the total area of lid margin covered by staining) was recorded. Both eyes were included in the model for analysis. Contact lenses were not worn for this assessment.
Time frame: Baseline (Day 0), Month 3
Population: This analysis population includes all participants who completed the study as per the protocol, minus missing responses.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| AOSEPT Plus | Mean Upper Eyelid Margin Staining | Baseline (Day 0) | 5.36 square millimeters | Standard Deviation 4.21 |
| AOSEPT Plus | Mean Upper Eyelid Margin Staining | Month 3 | 4.49 square millimeters | Standard Deviation 2.9 |
| ReNu MultiPlus | Mean Upper Eyelid Margin Staining | Baseline (Day 0) | 4.33 square millimeters | Standard Deviation 2.65 |
| ReNu MultiPlus | Mean Upper Eyelid Margin Staining | Month 3 | 4.80 square millimeters | Standard Deviation 2.82 |
Mean Upper Eyelid Redness
The contact lenses were removed and upper eyelid redness was objectively measured through digital images. The coverage of the palpebral surface by blood vessels is expressed as percentage of the total surface measured. Both eyes were included in the model for analysis. Contact lenses were not worn for this assessment.
Time frame: Baseline (Day 0), Month 3
Population: This analysis population includes all participants who completed the study as per the protocol, minus missing responses.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| AOSEPT Plus | Mean Upper Eyelid Redness | Baseline (Day 0) | 34.7 percentage of total surface measured | Standard Deviation 15.5 |
| AOSEPT Plus | Mean Upper Eyelid Redness | Month 3 | 33.4 percentage of total surface measured | Standard Deviation 13.4 |
| ReNu MultiPlus | Mean Upper Eyelid Redness | Baseline (Day 0) | 31.9 percentage of total surface measured | Standard Deviation 9.1 |
| ReNu MultiPlus | Mean Upper Eyelid Redness | Month 3 | 30.8 percentage of total surface measured | Standard Deviation 12.7 |
Median Non-Invasive Pre-Lens Tear Film Break Up Time (PL-NIBUT)
The pre-lens tear film is the layer of tears located on top of the contact lens (i.e., between the eyelid and the contact lens). The time required for a dry spot to appear on the pre-lens surface after blinking is referred to as the pre-lens tear film break up time. PL-NIBUT was evaluated using a biomicroscope with a diffuse illumination source, i.e., Tearscope. A longer PL-NIBUT indicates a more stable tear film and greater on-eye lens wettability. Three PL-NIBUT measurements were recorded, and the median value was used for analysis. Both eyes were included in the model for analysis. Contact lenses were on-eye for this assessment.
Time frame: Month 3
Population: This analysis population includes all participants who completed the study as per the protocol, minus missing responses.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| AOSEPT Plus | Median Non-Invasive Pre-Lens Tear Film Break Up Time (PL-NIBUT) | 4.16 seconds | Standard Deviation 3.5 |
| ReNu MultiPlus | Median Non-Invasive Pre-Lens Tear Film Break Up Time (PL-NIBUT) | 4.52 seconds | Standard Deviation 3.46 |