Ocular Physiology
Conditions
Brief summary
This is a bilateral wear, dispensing, randomized, controlled, double-masked, 2-sequence ×2-period crossover study to evaluate ocular physiology following contact lens wear.
Interventions
DEVICEMyDay® Toric Soft Contact Lenses
CONTROL
DEVICEPRECISION1® for Astigmatism Contact Lenses
TEST
Sponsors
Johnson & Johnson Vision Care, Inc.
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
ALL
Age
18 Years to 39 Years
Healthy volunteers
Yes
Inclusion criteria
Potential subjects must satisfy of all the following criteria to be enrolled in the study. The subject must: 1. Read, understand, and sign the STATEMENT OF INFORMED CONSENT and receive a fully executed copy of the form. 2. Appear able and willing to adhere to the instructions set forth in this clinical protocol. 3. Be between 18 and 39 (inclusive) years of age at the time of screening. 4. By self-report, habitually wear soft contact lenses in both eyes in a daily reusable or daily disposable wear modality (i.e. not extended wear modality). Habitual wear is defined as a minimum of 6 hours of wear per day, for a minimum of 2 days per week during the past month. 5. Possess a wearable pair of spectacles that provide correction for distance vision. Inclusion Criteria at Baseline Evaluation The subject must: 6. Have the spherical component of their vertex-corrected distance refraction must be between -0.875 to -4.625 DS (inclusive) in each eye. 7. Have the magnitude of the cylindrical component of their vertex-corrected distance refraction between 0.625 DC and 1.625 DC in both eyes. 8. Have the cylinder axis of their distance refraction between 165° and 15° (i.e., 180±15°, inclusive) or between 75° and 105° (i.e., 90±15°, inclusive) in each eye. 9. Have best corrected monocular distance visual acuity of 20/30 or better in each eye.
Exclusion criteria
Potential subjects who meet any of the following criteria will be excluded from participating in the study: The subject must not: 1. Be currently pregnant or lactating. 2. Be diabetic. 3. Be currently using any ocular medications or have any ocular infection of any type. 4. By self-report, have any ocular or systemic disease, allergies, infection, or use of medication that might contraindicate or interfere with contact lens wear, or otherwise compromise study endpoints, including infectious disease (e.g., hepatitis, tuberculosis), contagious immunosuppressive disease (e.g., Human Immunodeficiency Virus \[HIV\]), autoimmune disease (e.g. rheumatoid arthritis, Sjögren's syndrome), or history of serious mental illness or seizures. See section 9.1 for additional details regarding excluded systemic medications. 5. Have habitually worn rigid gas permeable (RGP) lenses, orthokeratology lenses, or hybrid lenses (e.g. SynergEyes, SoftPerm) within the past 6 months. 6. Be currently wearing monovision or multifocal contact lenses. 7. Be currently wearing lenses in an extended wear modality. 8. Have a history of strabismus or amblyopia. 9. Be an employee (e.g., Investigator, Coordinator, Technician) or immediate family member of an employee (including partner, child, parent, grandparent, grandchild or sibling of the employee or their spouse) of the clinical site. 10. Have participated in a contact lens or lens care product clinical trial within 7 days prior to study enrollment.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Proportion of Eyes With Grade 3 or Higher Slit Lamp Findings | Up to 1-Week Follow-up | Slit Lamp Findings (SLF) were assessed using a biomicroscope and was graded using the FDA grading scale (Grade: 0, 1,2, 3 and 4) with grade 0 represents the absence of findings and 1 to 4 representing successively worse findings (i.e. Grade 1 = trace, Grade 2 = Mild, Grade 3 = moderate and Grade 4 = severe). This was performed on each subject eye at every study visit (baseline, unscheduled visits and 1-week follow-up). The data was then dichotomized into two groups. Those with grade 3 or higher and those with grade 2 or lower. The proportion of eyes with SLF with grade 3 or higher was reported. |
Countries
United States
Participant flow
Recruitment details
A total of 78 subjects were enrolled in this study. Of those enrolled, 73 subjects were dispensed at least one study lens, while 5 subjects failed to meet all eligibility criteria. Of those dispensed, 69 subjects completed the study while 4 subjects were discontinued.
Participants by arm
| Arm | Count |
|---|---|
| Dispensed Subjects All subjects dispensed a study lens. | 73 |
| Total | 73 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Period 1 | Unsatisfactory Visual Response due to Test Article | 0 | 1 |
| Period 1 | Withdrew Consent during study | 1 | 0 |
| Period 2 | Adverse Event | 0 | 1 |
| Period 2 | Unsatisfactory Visual Response due to Test Article | 1 | 0 |
Baseline characteristics
| Characteristic | Dispensed Subjects |
|---|---|
| Age, Continuous | 28.9 Years STANDARD_DEVIATION 5.33 |
| Race/Ethnicity, Customized Asian | 3 Participants |
| Race/Ethnicity, Customized Black or African American | 7 Participants |
| Race/Ethnicity, Customized Other | 1 Participants |
| Race/Ethnicity, Customized White | 62 Participants |
| Region of Enrollment United States | 73 Participants |
| Sex: Female, Male Female | 48 Participants |
| Sex: Female, Male Male | 25 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 72 | 0 / 72 |
| other Total, other adverse events | 0 / 72 | 0 / 72 |
| serious Total, serious adverse events | 0 / 72 | 0 / 72 |
Outcome results
Primary
Proportion of Eyes With Grade 3 or Higher Slit Lamp Findings
Slit Lamp Findings (SLF) were assessed using a biomicroscope and was graded using the FDA grading scale (Grade: 0, 1,2, 3 and 4) with grade 0 represents the absence of findings and 1 to 4 representing successively worse findings (i.e. Grade 1 = trace, Grade 2 = Mild, Grade 3 = moderate and Grade 4 = severe). This was performed on each subject eye at every study visit (baseline, unscheduled visits and 1-week follow-up). The data was then dichotomized into two groups. Those with grade 3 or higher and those with grade 2 or lower. The proportion of eyes with SLF with grade 3 or higher was reported.
Time frame: Up to 1-Week Follow-up
Population: All dispensed subjects regardless of subsequent withdrawal from study or deviation from protocol.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Verofilcon A | Proportion of Eyes With Grade 3 or Higher Slit Lamp Findings | 0 Proportion of eyes |
| Stenfilcon A | Proportion of Eyes With Grade 3 or Higher Slit Lamp Findings | 0 Proportion of eyes |