Evaluation of Silicone Hydrogel Daily Wear Contact Lenses for Up to One (1) Month of Daily Wear

Not Applicable

Completed

Conditions: Myopia
Astigmatism
Hyperopia

Interventions: Device: Invigor A (test)
Device: Invigor B (control)

Registration Number: NCT03722784

Lead Sponsor: Coopervision, Inc.

Brief Summary: The aim of the study is to evaluate if the performance of Invigor A is substantially equivalent to Invigor B contact lenses when used in a one month recommended replacement, daily wear modality.

Detailed Description: This study is a multi-centered, daily wear, monthly replacement, bilateral, randomized in a ratio of two to one (2:1) Test to Control, lens blocked (subjects remain in the same lens brand throughout the study), licensed investigator and subject masked, concurrent controlled study with a study duration of approximately three months evaluating performance equivalence of Invigor A (test) over Invigor B (control) contact lenses.

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 88

Inclusion Criteria

Be at least 18 years of age as of the date of evaluation for the study
Have
1. Read the informed consent document
2. Been given an explanation of the informed consent document
3. indicated understanding of the informed consent document
4. Signed the informed consent document
Be willing and able to adhere to the instructions provided by the investigational site and be willing to keep all specified appointments.
Be an adapted, frequent replacement, current full - time silicone hydrogel or soft contact lens wearer. An adapted full- time wearer is defined as wearing contact lenses at least 5 days per week for at least 8 hours per day for at least one month prior to participation in the study.
Possess or obtain prior to dispensing, wearable and visually functional (20/40 or better) eyeglasses.
Be in good general health, based on his/her knowledge.

Exclusion Criteria

Wearing lenses in a monovision modality and is unwilling to be fit with distance lenses in both eyes for the duration of the study. Note: Subjects may not wear lenses in a monovision modality at any time during the study as it will interfere with the visual acuity analysis.
Poor personal hygiene.
Any active participation in another clinical trial during this trial or within 30 days prior to this study.
To the best of the subject's knowledge, she is currently pregnant, is lactating or is planning a pregnancy within the next 3 months.
A member, relative or household member of the investigator(s) or of the investigational office staff.
A known sensitivity to the ingredients used in the multi-purpose solution approved for use in the study and is unable or unwilling to use the alternate care system.
Had previous refractive surgery; or current or previous orthokeratology treatment.
Aphakic or pseudophakic.
Ocular or systemic disease such as, but not limited to: anterior uveitis or iritis (past or present), glaucoma, Sjögren's syndrome, lupus erythematosus, scleroderma, keratoconus or uncontrolled diabetes.
The need for topical ocular medications or any systemic medication which might interfere with contact lens wear or require the lenses to be removed during the day.
A known history of corneal hypoesthesia (reduced corneal sensitivity), corneal ulcer, corneal infiltrates, iritis, bacterial or fungal infections.
A history of papillary conjunctivitis that has interfered with contact lens wear.

Study & Design

Study Type: INTERVENTIONAL

Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Invigor A (test)	Invigor A (test)	Subjects will be randomized to wear Invigor A (test) for one month of daily wear during the study.
Invigor B (Control)	Invigor B (control)	Subjects will be randomized to wear Invigor B (Control) for one month of daily wear during the study.

Primary Outcome Measures

Name	Time	Method
Number of Eyes With Corneal Infiltrates - Slit Lamp Findings	One Month	Number of Eyes With Corneal Infiltrates on slit lamp findings - Present / Absent
Number of Eyes With Palpebral Conjunctival Observations - Slit Lamp Findings	Baseline	Number of Eyes With Palpebral Conjunctival Observations on slit lamp findings - Present / Absent
Number of Eyes With Epithelial Edema - Slit Lamp Findings	One Month	Epithelial edema on slit lamp grading scale 0 - 4 (0- No microcysts; normal transparency, 1 Trace - 1 to 20 microcysts; barely discernible local epithelial haziness, 2 Mild - 21 to 50 microcysts; faint but definite localized or generalized haziness, 3 Moderate - 51 to 100 microcysts; significant localized or generalized haziness, 4 Severe - \>100 microcysts; definite widespread epithelial cloudiness giving a dull glass appearance to the cornea, or numerous coalescing bullae)
Number of Eyes With Corneal Vascularization - Slit Lamp Findings	One Month	Corneal Vascularization on slit lamp grading scale 0-4 (0 None: No vessel penetration, 1 Trace: \<1.00 mm vessel penetration, 2 Mild: \>1.00 mm to \<1.50 mm vessel penetration, 3 Moderate: \>1.50 mm to \<2.00 mm vessel penetration, 4 Severe: Vessel penetration \>2.00 mm) Depth: a. - Epithelial b. - Anterior Stromal c. - Mid/Posterior Stromal Location: N - Nasal T - Temporal I - Inferior S - Superior
Number of Eyes With Stromal Edema - Slit Lamp Findings	One Month	Stromal edema on slit lamp grading scale 0-4 (0 None - No edema, 1 Trace - Just detectable clouding, 2 Mild - faint corneal striae, 3 Moderate - Pronounced corneal striae, 4 severe - folds in Descemet's membrane and ≥4 pronounced striae
Number of Eyes With Corneal Staining - Slit Lamp Findings	One Month	Corneal Staining with fluorescent on slit lamp findings - Present / Absent
Number of Eyes With Limbal Hyperemia - Slit Lamp Findings	One Month	Limbal Hyperemia on slit lamp grading scale 0-4 (0 None: No hyperemia, 1 Trace: Slight limbal hyperemia (mild segmented), 2 Mild: Mild limbal hyperemia (mild circumcorneal), 3 Moderate: Significant limbal hyperemia (marked segmented), 4 Severe: Severe limbal hyperemia (marked circumcorneal).
Number of Eyes With Bulbar Hyperemia - Slit Lamp Findings	One Month	Bulbar Hyperemia on slit lamp grading scale 0-4 (0 None: No hyperemia, 1 Trace: Slight regional hyperemia, 2 Mild: Diffuse hyperemia, 3 Moderate: Marked regional or diffuse hyperemia, 4 Severe: Diffuse episcleral or scleral hyperemia)
Number of Eyes With Palpebral Conjunctiva - Slit Lamp Findings	One Month	Palpebral Conjunctival Observations on slit lamp findings - Present / Absent
Number of Eyes With Other Findings - Conjunctival Infection, Epidemic Keratoconjunctivitis, Corneal Ulcers, Iritis, Lens Adhesions and Recurrent Erosion - Slit Lamp Findings	One Month	Clinical entities such as conjunctival infection, epidemic keratoconjunctivitis, corneal ulcers, iritis, lens adhesions and recurrent erosion on Slit lamp grading scale of 0-4 (0 None 1 Trace, 2 Mild, 3 Moderate, 4 Severe)

Secondary Outcome Measures

Name	Time	Method
Number of Eyes With Visual Acuity for an Effective Visual Distance of 20 Feet	One Month	Number of Eyes With Visual Acuity was assessed using Snellen VA Chart for an effective visual distance of 20 feet

Trial Locations

Locations (6): The Koetting Associates
🇺🇸
Saint Louis, Missouri, United States
Quinn, Foster & Associates
🇺🇸
Athens, Ohio, United States
Vision Care Associates
🇺🇸
East Lansing, Michigan, United States
Primary Eyecare Group, P.C
🇺🇸
Brentwood, Tennessee, United States
Mark Nakano. O.D
🇺🇸
Torrance, California, United States
Ziegler Leffingwell Eye Center
🇺🇸
West Allis, Wisconsin, United States