Skip to content

Clinical Evaluation of Etafilcon A Contact Lenses Using a Novel Molding Process 2

Clinical Evaluation of Etafilcon A Contact Lenses Using a Novel Molding Process 2

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03701516
Enrollment
268
Registered
2018-10-10
Start date
2018-09-24
Completion date
2019-04-01
Last updated
2022-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myopia

Brief summary

This study is a multi-site, group sequential, adaptive, randomized, double-masked, 2×2 crossover design, 1-week dispensing study. Subjects will wear bilaterally both Test and Control lenses in a random order for 1-week each as a daily disposable modality with a wash-out period of 1 week between the wearing periods.

Interventions

DEVICEetafilcon A with novel molding process

TEST Lens

DEVICEetafilcon A with current molding process

CONTROL Lens

Sponsors

Johnson & Johnson Vision Care, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* Potential subjects must satisfy all of the following criteria to be enrolled in the study: 1. The subject must 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. Must be at least 18 and not more than 70 years of age (including 70) at the time of screening. 4. The subject must be a habitual and adapted wearer of hydrogel daily disposable brand contact lens in both eyes (at least 1 month of daily wear). 5. The subject must have normal eyes (i.e., no ocular medications or infections of any type). 6. The subject's required spherical contact lens prescription must be in the range of -1.00 to -4.50 D in each eye. 7. The subject's refractive cylinder must be \< 0.75 D in each eye. 8. The subject must have best corrected visual acuity of 20/25 or better in each eye.

Exclusion criteria

* Potential subjects who meet any of the following criteria will be excluded from participating in the study: 1. Currently pregnant or lactating (subjects who become pregnant during the study will be discontinued). 2. Any systemic disease, autoimmune disease, or use of medication that may interfere with contact lens wear. 3. Any previous, or planned, ocular or interocular surgery (e.g., radial keratotomy, PRK, LASIK, etc.). 4. Any ocular infection. 5. Any corneal distortion resulting from previous hard or rigid gas permeable contact lens wear. 6. Monovision or multi-focal contact lens correction. 7. Participation in any contact lens or lens care product clinical trial within 14 days prior to study enrollment. 8. History of binocular vision abnormality or strabismus. 9. Any infectious disease (e.g., hepatitis, tuberculosis) or a contagious immunosuppressive disease (e.g., HIV, by self-report). 10. Suspicion of or recent history of alcohol or substance abuse. 11. History of serious mental illness. 12. History of seizures. 13. Employee or immediate family member of an employee of clinical site (e.g., Investigator, Coordinator, Technician) 14. Any ocular allergies, infections or other ocular abnormalities that are known to interfere with contact lens wear and/or participation in the study. This may include, but not be limited to entropion, ectropion, extrusions, chalazia, recurrent styes, glaucoma, history of recurrent corneal erosions, aphakia, or corneal distortion. 15. Any Grade 3 or greater slit lamp findings (e.g., edema, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival injection) on the FDA classification scale. 16. Any previous history or signs of a contact lens-related corneal inflammatory event (e.g., past peripheral ulcer or round peripheral scar), or any other ocular abnormality that may contraindicate contact lens wear.

Design outcomes

Primary

MeasureTime frameDescription
Overall Comfort Scores1-week Follow-upOverall comfort was assessed using the Contact Lens User Experience™ (CLUE) questionnaire. CLUE is a validated patient-reported outcomes (PRO) questionnaire to assess patient experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using Item Response Theory (IRT) follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response with a range of 0-120.
Overall Vision Scores1-week Follow-upOverall vision was assessed using the CLUE questionnaire. CLUE is a validated PRO questionnaire to assess patient experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using IRT follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response with a range of 0-120.

Secondary

MeasureTime frameDescription
Average Daily Wear Time1-week Follow-upAverage daily wear time was calculated as the number of hours between subjects reported time of insertion and time of removal of the study lenses, on an average day, at 1-week follow-up evaluation. Higher wear times indicate better lens performance. The average wear time was reported for each lens type.
LLHC LogMAR Visual Performance1-week Follow-upVisual performance was calculated as monocular contact lens-corrected distance visual acuity using a logMAR visual acuity scale. This was evaluated under low luminance and high contrast conditions (LLHC) at 4 meters from Early Treatment Diabetic Retinopathy Study (ETDRS) charts at the 1-week follow-up visit. Lower visual performance values indicate better vision. Two measurements were performed for each eye at 1-week follow-up. The average visual performance was reported for each lens type.
HLLC LogMAR Visual Performance1-week Follow-upVisual performance was calculated as monocular contact lens-corrected distance visual acuity using a logMAR visual acuity scale. This was evaluated under high luminance and low contrast conditions (HLLC) at 4 meters from Early Treatment Diabetic Retinopathy Study (ETDRS) charts at the 1-week follow-up visit. Lower visual performance values indicate better vision. Two measurements were performed for each eye at 1-week follow-up. The average visual performance was reported for each lens type.

Countries

United States

Participant flow

Recruitment details

A total of 268 subjects were enrolled in this study. Of those enrolled, 263 dispensed at least one study lens while, 5 subjects failed to meet all eligibility criteria. Of those dispensed subjects, 252 subjects completed the study while, 11 subjects were discontinued from the study.

Participants by arm

ArmCount
Dispensed Subject
All subjects dispensed a study lens.
263
Total263

Withdrawals & dropouts

PeriodReasonFG000FG001
Period 1Adverse Event02
Period 1Lost to Follow-up01
Period 1Non Compliance to Protocol21
Period 1Unsatisfactory Lens Fitting due to Test Article20
Period 1Withdrawal by Subject01
Period 2failed to meet all eligibility creiteria10
Period 2Unsatisfactory Lens Fitting due to Test Article01

Baseline characteristics

CharacteristicDispensed Subject
Age, Continuous31.6 years
STANDARD_DEVIATION 8.5
Race/Ethnicity, Customized
Asian
13 participants
Race/Ethnicity, Customized
Black or African American
17 participants
Race/Ethnicity, Customized
Other
5 participants
Race/Ethnicity, Customized
White
228 participants
Region of Enrollment
United States
263 Participants
Sex: Female, Male
Female
186 Participants
Sex: Female, Male
Male
77 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 2630 / 263
other
Total, other adverse events
0 / 2630 / 263
serious
Total, serious adverse events
0 / 2630 / 263

Outcome results

Primary

Overall Comfort Scores

Overall comfort was assessed using the Contact Lens User Experience™ (CLUE) questionnaire. CLUE is a validated patient-reported outcomes (PRO) questionnaire to assess patient experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using Item Response Theory (IRT) follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response with a range of 0-120.

Time frame: 1-week Follow-up

Population: All subjects who had successfully completed all visits and did not substantially deviate from the protocol.

ArmMeasureValue (MEAN)Dispersion
TestOverall Comfort Scores59.9 unit on a scaleStandard Deviation 24.21
ControlOverall Comfort Scores60.8 unit on a scaleStandard Deviation 24.69
98% CI: [-4.53, 3.85]Bayesian repeated measurement model
Primary

Overall Vision Scores

Overall vision was assessed using the CLUE questionnaire. CLUE is a validated PRO questionnaire to assess patient experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using IRT follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response with a range of 0-120.

Time frame: 1-week Follow-up

Population: All subjects who had successfully completed all visits and did not substantially deviate from the protocol.

ArmMeasureValue (MEAN)Dispersion
TestOverall Vision Scores64.2 unit on a scaleStandard Deviation 20.06
ControlOverall Vision Scores66.5 unit on a scaleStandard Deviation 19.94
98% CI: [-5.36, 0.61]Bayesian repeated measurement model
Secondary

Average Daily Wear Time

Average daily wear time was calculated as the number of hours between subjects reported time of insertion and time of removal of the study lenses, on an average day, at 1-week follow-up evaluation. Higher wear times indicate better lens performance. The average wear time was reported for each lens type.

Time frame: 1-week Follow-up

Population: All subjects who had successfully completed all visits and did not substantially deviate from the protocol.

ArmMeasureValue (MEAN)Dispersion
TestAverage Daily Wear Time14.3 HoursStandard Deviation 1.92
ControlAverage Daily Wear Time14.4 HoursStandard Deviation 1.82
95% CI: [-0.22, 0.1]Bayesian repeated measurement model
Secondary

HLLC LogMAR Visual Performance

Visual performance was calculated as monocular contact lens-corrected distance visual acuity using a logMAR visual acuity scale. This was evaluated under high luminance and low contrast conditions (HLLC) at 4 meters from Early Treatment Diabetic Retinopathy Study (ETDRS) charts at the 1-week follow-up visit. Lower visual performance values indicate better vision. Two measurements were performed for each eye at 1-week follow-up. The average visual performance was reported for each lens type.

Time frame: 1-week Follow-up

Population: All subjects who had successfully completed all visits and did not substantially deviate from the protocol.

ArmMeasureValue (MEAN)Dispersion
TestHLLC LogMAR Visual Performance0.062 logMARStandard Deviation 0.1209
ControlHLLC LogMAR Visual Performance0.065 logMARStandard Deviation 0.1176
95% CI: [-0.009, 0.002]Bayesian repeated measurement model
Secondary

LLHC LogMAR Visual Performance

Visual performance was calculated as monocular contact lens-corrected distance visual acuity using a logMAR visual acuity scale. This was evaluated under low luminance and high contrast conditions (LLHC) at 4 meters from Early Treatment Diabetic Retinopathy Study (ETDRS) charts at the 1-week follow-up visit. Lower visual performance values indicate better vision. Two measurements were performed for each eye at 1-week follow-up. The average visual performance was reported for each lens type.

Time frame: 1-week Follow-up

Population: All subjects who had successfully completed all visits and did not substantially deviate from the protocol.

ArmMeasureValue (MEAN)Dispersion
TestLLHC LogMAR Visual Performance-0.059 logMARStandard Deviation 0.1123
ControlLLHC LogMAR Visual Performance-0.060 logMARStandard Deviation 0.1176
95% CI: [-0.005, 0.006]Bayesian repeated measurement random-eff

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026