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A Clinical Trial to Evaluate Investigational Silicone Hydrogel Contact Lenses Worn Continuously for One Week

Echo Ionic Silicone Hydrogel 6-Month Extended Wear Investigation

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02543528
Enrollment
171
Registered
2015-09-07
Start date
2015-06-01
Completion date
2016-11-08
Last updated
2019-10-01

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

Conditions

Visual Disorder

Brief summary

This study is a prospective, randomized, double-masked, bilateral, dispensing, parallel-group clinical trial design. All subjects will participate in a 2-week daily disposable contact lens adaptation period prior to being randomized into one of the four extended wear lenses. The study has a total of 9 scheduled study visits and a total duration of \ 197 days. The lenses will be replaced with a fresh pair after 6 nights / 7 days of wear.

Interventions

DEVICEInvestigational Lens 1

One fresh pair of Investigational Lens 1 contact lenses worn continuously in 6 nights/7 days wear cycles for 6 months of total wear.

DEVICEInvestigational Lens 2

One fresh pair of Investigational Lens 2 contact lenses worn continuously in 6 nights/7 days wear cycles for 6 months of total wear.

DEVICEInvestigational Lens 3

One fresh pair of Investigational Lens 3 contact lenses worn continuously in 6 nights/7 days wear cycles for 6 months of total wear.

DEVICEetafilcon A (Reusable)

One fresh pair of etafilcon A (Reusable) contact lenses worn continuously in 6nights/7 days wear cycles for 6 months of total wear.

DEVICEetafilcon A (1-Day)

2-week contact lens adaptation period wearing prior to randomization

Sponsors

Johnson & Johnson Vision Care, Inc.
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 39 Years
Healthy volunteers
Yes

Inclusion criteria

* The subject must read and understand English and sign the STATEMENT OF INFORMED CONSENT and receive a fully executed copy of the form. * The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol. * The subject must be at least 18 and no more than 39 years of age. * The subject's spherical equivalent distance refraction must be in the range of -1.00 to -5.50 diopters in each eye. * The subject's refractive cylinder must be less than 1.00 diopters in each eye. * The subject must have best corrected visual acuity of 20/30 or better in each eye. * The subject must be without history of contact lens use in the past 12 months. * The subject must have normal eyes (i.e., no ocular medications or infections of any type).

Exclusion criteria

* Any previous experience wearing contact lenses on an overnight or extended wear basis (at least 1 night per month) * Currently pregnant or lactating (self reported) (subjects who become pregnant during the study will be discontinued). * Currently a regular smoker (1 or more times per month). * Current routine swimmer (1 or more times per month). * Any ocular or systemic allergies or diseases that may interfere with contact lens wear. * Any systemic disease (ex. Sjögren's Syndrome), autoimmune disease (ex. rheumatoid arthritis), or use of medication (ex. chronic steroid use), which may interfere with contact lens wear. * Entropion, ectropion, extrusions, chalazia, recurrent styes, glaucoma, history of recurrent corneal erosions, aphakia, or moderate or above corneal distortion by keratometry. * Any previous or planned, ocular or interocular surgery (e.g., radial keratotomy, photorefractive keratectomy (PRK), laser in situ keratomileusis (LASIK), etc.). * Any grade 3 or greater slit lamp findings (e.g., edema, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival injection) on the FDA classification scale, 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. * Any ocular infection. * Any corneal distortion resulting from previous hard or rigid gas permeable contact lens wear. * Participation in any contact lens or lens care product clinical trial within 7 days prior to study enrollment. * History of binocular vision abnormality or strabismus. * Any infectious disease (e.g., hepatitis, tuberculosis) or a contagious immunosuppressive disease (e.g., HIV) by self report). * Employee of investigational clinic (e.g., Investigator, Coordinator, Technician).

Design outcomes

Primary

MeasureTime frameDescription
Number of First Occurred Serious and Significant Lens-related Corneal Infiltrative Event (CIE)Up to 6 monthsThe number of first serious and significant corneal infiltrative adverse events deemed to be related to contact lens wear (possible, probable or very likely) during a 6-month period (contact lens extended wear period) was assessed via Biomicroscopy. A biomicroscope was used to detect the presence of a corneal infiltrate for each subject eye (Yes: corneal infiltrates detected, No: None present). The number of subjects with corneal infiltrative events was reported for each lens type.

Secondary

MeasureTime frameDescription
Overall Comfort ScoreTime Frame Up to 6 monthsOverall comfort was assessed using the Contact Lens User Experience (CLUE)TM questionnaire. CLUE is a validated patient-reported outcomes questionnaire to assess patient experience attributes of soft, disposable contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Scores follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response. 97% of the scores fall within 0 and 120 (mean +/-3XSD). CLUE was collected at the 1-day, 5-day, 12-day, 26-day, 88-day and 180-day follow-up evaluation.
Overall Vision ScoreTime Frame Up to 6 monthsOverall quality of vision score was assessed using the Contact Lens User Experience (CLUE)TM questionnaire. CLUE is a validated patient-reported outcomes questionnaire to assess patient experience attributes of soft, disposable contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Scores follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response. 97% of the scores fall within 0 and 120 (mean +/-3XSD). CLUE was collected at the 1-day, 5-day, 12-day, 26-day, 88-day and 180-day follow-up evaluation.

Countries

India

Participant flow

Recruitment details

This study utilized an adaptation period of 14 days prior to dispensing the extended wear contact lenses. A total of 171 subjects were enrolled into the adaption period. Of those enrolled into this period 168 were dispensed a study lens and 3 did not meet the eligibility criteria. Of the 168 dispensed subjects 142 completed the adaptation period.

Pre-assignment details

A total of 26 subjects were discontinued from the adaptation period. A total of 142 subjects were enrolled into the extended wear period. Of the enrolled subjects, all 142 were dispensed a study lens. Of the dispensed subjects in the extended wear period 58 completed the study and 84 subjects discontinued from the study.

Participants by arm

ArmCount
All Dispensed Subjects
All subjects dispensed at least 1 study lens.
168
Total168

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Adaptation PeriodAdverse Event00002
Adaptation PeriodLens Handling Difficultes00008
Adaptation PeriodLost to Follow-up000014
Adaptation PeriodUnsatisfactory Lens Fitting00002
Extended Wear PeriodAdverse Event17111630
Extended Wear PeriodLost to Follow-up01210
Extended Wear PeriodMissed too many scheduled visits00130
Extended Wear PeriodUnsatisfactory Lens Fitting10000
Extended Wear PeriodWithdrawal by Subject109450

Baseline characteristics

CharacteristicAll Dispensed Subjects
Age, Continuous20.2 Years
STANDARD_DEVIATION 2.8
Race/Ethnicity, Customized
Asian Indian
168 Participants
Sex/Gender, Customized
Female
108 Participants
Sex/Gender, Customized
Male
60 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 1680 / 360 / 350 / 360 / 35
other
Total, other adverse events
12 / 16836 / 3627 / 3533 / 3622 / 35
serious
Total, serious adverse events
0 / 1680 / 360 / 353 / 361 / 35

Outcome results

Primary

Number of First Occurred Serious and Significant Lens-related Corneal Infiltrative Event (CIE)

The number of first serious and significant corneal infiltrative adverse events deemed to be related to contact lens wear (possible, probable or very likely) during a 6-month period (contact lens extended wear period) was assessed via Biomicroscopy. A biomicroscope was used to detect the presence of a corneal infiltrate for each subject eye (Yes: corneal infiltrates detected, No: None present). The number of subjects with corneal infiltrative events was reported for each lens type.

Time frame: Up to 6 months

Population: The analysis population consists of all subjects that were enrolled into the extended wear period.

ArmMeasureValue (NUMBER)
Investigational Lens 1Number of First Occurred Serious and Significant Lens-related Corneal Infiltrative Event (CIE)14 Number of Events
Investigational Lens 3Number of First Occurred Serious and Significant Lens-related Corneal Infiltrative Event (CIE)13 Number of Events
Investigational Lens 2Number of First Occurred Serious and Significant Lens-related Corneal Infiltrative Event (CIE)12 Number of Events
Etafilcon A (Resuable)Number of First Occurred Serious and Significant Lens-related Corneal Infiltrative Event (CIE)1 Number of Events
Secondary

Overall Comfort Score

Overall comfort was assessed using the Contact Lens User Experience (CLUE)TM questionnaire. CLUE is a validated patient-reported outcomes questionnaire to assess patient experience attributes of soft, disposable contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Scores follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response. 97% of the scores fall within 0 and 120 (mean +/-3XSD). CLUE was collected at the 1-day, 5-day, 12-day, 26-day, 88-day and 180-day follow-up evaluation.

Time frame: Time Frame Up to 6 months

Population: The analysis population consists of all subjects that have completed all study visits without a major protocol deviation in both the adaptation and extended wear periods.

ArmMeasureGroupValue (MEAN)Dispersion
Investigational Lens 1Overall Comfort Score1-Day Follow-up59.39 Units on a ScaleStandard Deviation 14.263
Investigational Lens 1Overall Comfort Score5-Day Follow-up58.38 Units on a ScaleStandard Deviation 9.293
Investigational Lens 1Overall Comfort Score12-Day Follow-up60.94 Units on a ScaleStandard Deviation 9.62
Investigational Lens 1Overall Comfort Score26-Day Follow-up60.20 Units on a ScaleStandard Deviation 12.851
Investigational Lens 1Overall Comfort Score88-Day Follow-up59.54 Units on a ScaleStandard Deviation 7.474
Investigational Lens 1Overall Comfort Score180-Day Follow-up57.81 Units on a ScaleStandard Deviation 9.133
Investigational Lens 3Overall Comfort Score180-Day Follow-up62.69 Units on a ScaleStandard Deviation 14.6
Investigational Lens 3Overall Comfort Score26-Day Follow-up65.41 Units on a ScaleStandard Deviation 16.467
Investigational Lens 3Overall Comfort Score1-Day Follow-up60.22 Units on a ScaleStandard Deviation 9.005
Investigational Lens 3Overall Comfort Score12-Day Follow-up65.74 Units on a ScaleStandard Deviation 12.091
Investigational Lens 3Overall Comfort Score5-Day Follow-up60.12 Units on a ScaleStandard Deviation 8.447
Investigational Lens 3Overall Comfort Score88-Day Follow-up55.59 Units on a ScaleStandard Deviation 15.247
Investigational Lens 2Overall Comfort Score5-Day Follow-up58.29 Units on a ScaleStandard Deviation 9.735
Investigational Lens 2Overall Comfort Score12-Day Follow-up58.95 Units on a ScaleStandard Deviation 13.457
Investigational Lens 2Overall Comfort Score26-Day Follow-up57.35 Units on a ScaleStandard Deviation 15.28
Investigational Lens 2Overall Comfort Score180-Day Follow-up54.91 Units on a ScaleStandard Deviation 7.578
Investigational Lens 2Overall Comfort Score88-Day Follow-up57.71 Units on a ScaleStandard Deviation 12.15
Investigational Lens 2Overall Comfort Score1-Day Follow-up58.85 Units on a ScaleStandard Deviation 13.102
Etafilcon A (Resuable)Overall Comfort Score88-Day Follow-up65.00 Units on a ScaleStandard Deviation 15.657
Etafilcon A (Resuable)Overall Comfort Score180-Day Follow-up64.49 Units on a ScaleStandard Deviation 16.12
Etafilcon A (Resuable)Overall Comfort Score5-Day Follow-up64.59 Units on a ScaleStandard Deviation 13.301
Etafilcon A (Resuable)Overall Comfort Score26-Day Follow-up65.57 Units on a ScaleStandard Deviation 14.513
Etafilcon A (Resuable)Overall Comfort Score1-Day Follow-up62.51 Units on a ScaleStandard Deviation 13.431
Etafilcon A (Resuable)Overall Comfort Score12-Day Follow-up64.87 Units on a ScaleStandard Deviation 13.831
Secondary

Overall Vision Score

Overall quality of vision score was assessed using the Contact Lens User Experience (CLUE)TM questionnaire. CLUE is a validated patient-reported outcomes questionnaire to assess patient experience attributes of soft, disposable contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Scores follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response. 97% of the scores fall within 0 and 120 (mean +/-3XSD). CLUE was collected at the 1-day, 5-day, 12-day, 26-day, 88-day and 180-day follow-up evaluation.

Time frame: Time Frame Up to 6 months

Population: The analysis population consists of all subjects that have completed all study visits without a major protocol deviation in both the adaptation and extended wear periods.

ArmMeasureGroupValue (MEAN)Dispersion
Investigational Lens 1Overall Vision Score1-Day Follow-up55.27 Units on a ScaleStandard Deviation 15.819
Investigational Lens 1Overall Vision Score5-Day Follow-up53.02 Units on a ScaleStandard Deviation 9.117
Investigational Lens 1Overall Vision Score12-Day Follow-up52.17 Units on a ScaleStandard Deviation 13.614
Investigational Lens 1Overall Vision Score26-Day Follow-up52.85 Units on a ScaleStandard Deviation 5.218
Investigational Lens 1Overall Vision Score88-Day Follow-up50.23 Units on a ScaleStandard Deviation 17.08
Investigational Lens 1Overall Vision Score180-Day Follow-up53.49 Units on a ScaleStandard Deviation 9.883
Investigational Lens 3Overall Vision Score180-Day Follow-up54.07 Units on a ScaleStandard Deviation 10.654
Investigational Lens 3Overall Vision Score26-Day Follow-up57.84 Units on a ScaleStandard Deviation 13.257
Investigational Lens 3Overall Vision Score1-Day Follow-up56.78 Units on a ScaleStandard Deviation 14.299
Investigational Lens 3Overall Vision Score12-Day Follow-up59.63 Units on a ScaleStandard Deviation 17.147
Investigational Lens 3Overall Vision Score5-Day Follow-up54.66 Units on a ScaleStandard Deviation 14.398
Investigational Lens 3Overall Vision Score88-Day Follow-up54.22 Units on a ScaleStandard Deviation 14.718
Investigational Lens 2Overall Vision Score5-Day Follow-up52.11 Units on a ScaleStandard Deviation 13.284
Investigational Lens 2Overall Vision Score12-Day Follow-up50.73 Units on a ScaleStandard Deviation 11.715
Investigational Lens 2Overall Vision Score26-Day Follow-up50.38 Units on a ScaleStandard Deviation 17.434
Investigational Lens 2Overall Vision Score180-Day Follow-up50.92 Units on a ScaleStandard Deviation 9.699
Investigational Lens 2Overall Vision Score88-Day Follow-up50.67 Units on a ScaleStandard Deviation 10.777
Investigational Lens 2Overall Vision Score1-Day Follow-up52.87 Units on a ScaleStandard Deviation 12.857
Etafilcon A (Resuable)Overall Vision Score88-Day Follow-up63.83 Units on a ScaleStandard Deviation 17.096
Etafilcon A (Resuable)Overall Vision Score180-Day Follow-up61.68 Units on a ScaleStandard Deviation 16.426
Etafilcon A (Resuable)Overall Vision Score5-Day Follow-up59.55 Units on a ScaleStandard Deviation 15.169
Etafilcon A (Resuable)Overall Vision Score26-Day Follow-up59.76 Units on a ScaleStandard Deviation 14.244
Etafilcon A (Resuable)Overall Vision Score1-Day Follow-up60.28 Units on a ScaleStandard Deviation 14.723
Etafilcon A (Resuable)Overall Vision Score12-Day Follow-up59.59 Units on a ScaleStandard Deviation 14.892

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