NCT01093625

Brief Summary

The purpose of this study is to evaluate the effect of an investigational silicone hydrogel soft contact lens on new contact lens wearers (neophytes) compared to a control of spectacle wearers.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
157

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2010

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2010

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

March 24, 2010

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 26, 2010

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2011

Completed
2.9 years until next milestone

Results Posted

Study results publicly available

February 13, 2014

Completed
Last Updated

June 19, 2018

Status Verified

May 1, 2015

Enrollment Period

1.2 years

First QC Date

March 24, 2010

Results QC Date

October 30, 2013

Last Update Submit

June 18, 2018

Conditions

Outcome Measures

Primary Outcomes (7)

  • Papillary Conjunctivitis

    Swelling of the papillary (Papillary conjunctivitis) area of the eye was assessed using a slit-lamp. Comparison between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments. The Efron scale has a range of 0 (normal) to 4 (Severe) and is subjectively assessed for 0.1 increments by the clinician, with the higher the magnitude of the number the worse the score.

    1 Year

  • Conjunctival Hyperemia

    Comparison of the amount of redness in the conjunctival area of the eye, between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments. The Efron scale has a range of 0 (normal) to 4 (Severe) and is subjectively assessed for 0.1 increments by the clinician, with the higher the magnitude of the number the worse the score.

    1 Year

  • Limbal Hyperemia

    Swelling of the vessels in the limbal area of the eye using a slit lamp. Comparison between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments. The Efron scale has a range of 0 (normal) to 4 (Severe) and is subjectively assessed for 0.1 increments by the clinician, with the higher the magnitude of the number the worse the score.

    1 Year

  • Corneal Staining

    Abrasions in the cornea area of the eye using a slit lamp. Comparison between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments.

    1 Year

  • Conjunctival Staining

    Mild abrasions of the conjunctival area of the eye. Comparison between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments. The Efron scale has a range of 0 (normal) to 4 (Severe) and is subjectively assessed for 0.1 increments by the clinician, with the higher the magnitude of the number the worse the score.

    1 Year

  • Corneal Neovascularization

    New vascularization of the Cornea. Comparison between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments. The Efron scale has a range of 0 (normal) to 4 (Severe) and is subjectively assessed for 0.1 increments by the clinician, with the higher the magnitude of the number the worse the score.

    1 Year

  • Differences in Subjective Comfort From the Contact Lens User Experience (CLUE) Questionnaire

    The subjective comfort questionnaire CLUE, assesses the overall lens comfort. The CLUE Questionnaire is a validated patient-reported outcomes questionnaire to assess patient-experience attributes of soft, disposable contact lenses 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, with a range of 0-120. The differences between: (final visit and first visit) and then (final visit and 6 months) are reported.

    1 Year

Secondary Outcomes (1)

  • Comfortable Wearing Time

    1 Year

Study Arms (2)

Narafilcon B Contact Lens

EXPERIMENTAL

Investigational Silicone Hydrogel Contact Lens

Device: Narafilcon B Contact Lens

Spectacles

ACTIVE COMPARATOR
Device: Spectacles

Interventions

Also known as: Investigational Silicone Hydrogel
Narafilcon B Contact Lens

spectacle wearers

Spectacles

Eligibility Criteria

Age15 Years - 39 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Able to read, comprehend and sign an informed consent (or parental consent/subject assent, as appropriate).
  • Willing to comply with the study visit schedule.
  • Ages 15 to 39.
  • Has access to a cellular telephone with text messaging capabilities.
  • Has a current pair of spectacles.
  • 'Neophyte' - In this work, 'neophyte' will be taken to mean any subject who has never been dispensed contact lenses. A subject who has taken part in a non-dispensing clinical study or has been fitted with contact lenses in practice but never went on to actually wear the lenses, will also be classified as a 'neophyte'.
  • Spherical contact lens (CL) prescription between -0.75D and -6.00D and spectacle cylinder equal to or less than 0.75 DC.
  • Monocular best-corrected distance visual acuity (VA) ≥ 20/30 Snellen in each eye.
  • Subject agrees to "intent" of wearing the CLs at minimum 6 hours/day for at least 4 days per week.
  • They agree not to participate in other clinical research during the duration of this study.

You may not qualify if:

  • Active ocular allergy, infection, injury, inflammation, or abnormality (e.g., keratoconus) that might interfere with soft contact lens wear.
  • Prior corneal refractive surgery or corneal irregularity (e.g., keratoconus).
  • Systemic disease, which might interfere with contact lens wear.
  • Medication usage that may be associated with eye dryness.
  • Use of any topical medication such as eye drops or ointment.
  • Pregnant or lactating (by self-report).
  • Aphakia.
  • Grade 2 or greater of any of the following ocular surface signs: corneal edema, corneal vascularization, corneal staining, tarsal conjunctival changes or any other abnormality, which would normally contraindicate contact lens wear.
  • Have participated in any other clinical trial or research in the two weeks prior to starting this study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ohio State University

Columbus, Ohio, 43210, United States

Location

MeSH Terms

Conditions

Myopia

Interventions

Eyeglasses

Condition Hierarchy (Ancestors)

Refractive ErrorsEye Diseases

Intervention Hierarchy (Ancestors)

LensesOptical DevicesEquipment and Supplies

Results Point of Contact

Title
Katherine E. Osborn
Organization
Vistakon

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 24, 2010

First Posted

March 26, 2010

Study Start

January 1, 2010

Primary Completion

April 1, 2011

Study Completion

April 1, 2011

Last Updated

June 19, 2018

Results First Posted

February 13, 2014

Record last verified: 2015-05

Locations