NCT01386008

Brief Summary

The purpose of this study is to evaluate the performance of the investigational CooperVision silicone hydrogel lens compared to a currently-marketed silicone hydrogel contact lens up to 30 days of daily lens wear.

Trial Health

60
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
28

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started May 2011

Shorter than P25 for not_applicable

Geographic Reach
2 countries

2 active sites

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2011

Completed
21 days until next milestone

First Submitted

Initial submission to the registry

May 22, 2011

Completed
10 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2011

Completed
29 days until next milestone

First Posted

Study publicly available on registry

June 30, 2011

Completed
2.7 years until next milestone

Results Posted

Study results publicly available

March 21, 2014

Completed
Last Updated

September 4, 2019

Status Verified

August 1, 2019

Enrollment Period

1 month

First QC Date

May 22, 2011

Results QC Date

November 1, 2013

Last Update Submit

August 26, 2019

Conditions

Outcome Measures

Primary Outcomes (2)

  • Subjective Comfort Preference - Participants Preference Response

    Subjective responses of participants administered by questionnaire and measured on a linear scale (0-100) measured at each visit.

    V1 (Initial), V2 (Day-7), V3 (Day-14), V4 (Day-30)

  • Ocular Health

    Ocular health determined by biomicroscopy recorded on a severity scale (0-4) for change from baseline over 30 days.

    Change from baseline over 30 days measured at V1 (Initial), V2 (Day-7), V3 (Day-14), V4 (Day-30)

Secondary Outcomes (2)

  • Investigator Surface Preference

    V1 (Initial), V2 (Day-7), V3 (Day-14), V4 (Day-30)

  • Investigator Fit Preference

    V1 (Initial), V2 (Day-7), V3 (Day-14), V4 (Day-30)

Study Arms (1)

enfilcon A + senofilcon A

OTHER

Simultaneous wearing of daily wear contact lenses - investigational enfilcon A contact lenses in one eye and comparator senofilcon A worn in the other

Device: senfilcon A contact lensDevice: investigational enfilcon A

Interventions

senofilcon A spherical contact lens worn in a daily wear modality

enfilcon A + senofilcon A

investigational enfilcon A, worn daily wear modality

enfilcon A + senofilcon A

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Be at least 18 years of age as of the date of evaluation for the study.
  • Not using any ocular medications
  • Have a self-reported full eye examination within 2 years.
  • Have:
  • read the Informed Consent
  • be given an explanation of the Informed Consent
  • indicate understanding of the Informed Consent
  • signed the Informed Consent document.
  • Be willing and able to adhere to the instructions set forth in this protocol and able to keep all specified appointments.
  • Be an adapted, current full-time silicone hydrogel or soft contact lens wearer. An adapted full-time wearer is defined as wearing contact lenses on a daily basis for at least 8 hours per day for at least one month prior to participation in the study.
  • Possess wearable and visually functional eyeglasses.
  • Be in good general health, based on his/her knowledge.
  • Require spectacle lens powers between -1.00 and -6.00 diopters sphere with no more than 0.75 diopter of refractive astigmatism in order to have the best spherical equivalent power of -6.50 or less.
  • Be willing to wear contact lenses in both eyes.
  • Have manifest refraction Snellen visual acuities (VA) equal to or better than 20/25 (less than or equal to LogMAR 0.10) in each eye.
  • +1 more criteria

You may not qualify if:

  • Wearing lenses in a monovision modality and is unwilling to be fit with distance lenses in both eyes. 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.
  • Any active participation in another one-day clinical trial within 7 days prior to this study or another dispensing trial within 30 days prior to this study.
  • Currently pregnant (to the best of the subject's knowledge), is lactating or is planning a pregnancy within the next month.
  • Has a known sensitivity to ingredients used in the over the counter contact lens care approved for use in the study.
  • Previous refractive surgery/anterior segment surgery; or current or previous orthokeratology treatment or irregular cornea.
  • Is aphakic or pseudophakic.
  • Unable to achieve a satisfactory fit with the lens designs used in the study
  • Ocular or systemic disease such as, but not limited to: anterior uveitis or iritis (past or present), glaucoma, Sjögren's syndrome, lupus erythematosus, sclerodermia, keratoconus or type II diabetes.
  • The need for topical ocular medications or any medication which might contradict contact lens wear or which would require the lenses to be removed during the day.
  • The presence of clinically anterior segment infection, inflammations or abnormalities; such as iritis; or any infection of the eye, lids, or associated structures.
  • A history of herpetic keratitis.
  • A known history of corneal hypoesthesia (reduced corneal sensitivity) or active corneal ulcer, corneal infiltrates or fungal infection.
  • A history of papillary conjunctivitis that has interfered with contact lens wear.
  • Slit lamp findings that would contraindicate contact lens wear, including but not limited to:
  • Pathological dry eye or associated dry eye symptoms with decreased tear levels and punctuate staining \> grade 2
  • +6 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Clinical Research Center, University of California, Berkeley

Berkeley, California, 94704, United States

Location

University of Manchester

Manchester, M13 9PL, United Kingdom

Location

MeSH Terms

Conditions

Myopia

Condition Hierarchy (Ancestors)

Refractive ErrorsEye Diseases

Limitations and Caveats

Incomplete data sets / Data not analyzed / Not all subjects completed the study measures at each outcome measurement time frame before the study was terminated. 20 participants completed V1 and only 1 participant completed the V2 follow-up.

Results Point of Contact

Title
Meng Lin, OD, PhD
Organization
Clinical Research Center (CRC) UC Berkeley School of Optometry

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 22, 2011

First Posted

June 30, 2011

Study Start

May 1, 2011

Primary Completion

June 1, 2011

Study Completion

June 1, 2011

Last Updated

September 4, 2019

Results First Posted

March 21, 2014

Record last verified: 2019-08

Locations