NCT03226353

Brief Summary

The objective of the study is to determine if habitual or adapted contact lens wearers of Omafilcon A can be confidently refit into Somofilcon A lenses and be successful after one week of daily wear. The primary outcome variables for this study are:

  • Investigator responses to refit questions;
  • Lens fit.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
77

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2017

Shorter than P25 for not_applicable

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

July 6, 2017

Completed
12 days until next milestone

First Submitted

Initial submission to the registry

July 18, 2017

Completed
3 days until next milestone

First Posted

Study publicly available on registry

July 21, 2017

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 27, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 27, 2017

Completed
1.4 years until next milestone

Results Posted

Study results publicly available

February 4, 2019

Completed
Last Updated

September 12, 2019

Status Verified

August 1, 2019

Enrollment Period

3 months

First QC Date

July 18, 2017

Results QC Date

October 26, 2018

Last Update Submit

August 27, 2019

Conditions

Outcome Measures

Primary Outcomes (10)

  • Investigator Opinion On Overall Patient Refit From Omafilcon A to Somofilcon A: Does Somofilcon A Provides Easy and Quick Refit From Omafilcon A?

    Investigator level of agreement using a Likert scale on refitting participants from omafilcon A to somofilcon A at Visit 1 (Strongly Agree, Agree, Slightly Agree, Slightly Disagree, Disagree, Strongly Disagree)

    1 week

  • Investigator Assessment to Refit- Based on the Investigator Opinion and Lens Fit Outcomes, Would the Investigator Refit the Subject Into Somofilcon A From Omafilcon A?

    Investigator level of agreement on the ease of refitting participants from omafilcon A to somofilcon A using Likert scale (Strongly agree, Agree, Slightly Agree, Slightly Disagree, Disagree, Strongly Disagree)

    1 week

  • Investigator Assessment to Refit - Does Somofilcon A Performs Better Than Omafilcon A Day?

    Investigator level of agreement on the ease of refitting participants from omafilcon A to somofilcon A using Likert scale (Strongly agree, Agree, Slightly Agree, Slightly Disagree, Disagree, Strongly Disagree)

    1 week

  • Investigator Assessment to Refit - Does Somofilcon A Provides an Upgrade From Omafilcon A?

    Investigator level of agreement on the ease of refitting participants from omafilcon A to somofilcon A using Likert scale (Strongly agree, Agree, Slightly Agree, Slightly Disagree, Disagree, Strongly Disagree)

    1 week

  • Lens Fit - Post-blink Lens Movement

    Graded on a scale of 0-4, 1 step, 0=Insufficient, unacceptable movement, 4=Excessive, unacceptable movement.

    Dispense and 1 Week

  • Lens Fit - Lens Tightness

    Graded using 0-100 scale (5% steps) where 0 = extremely loose and 100 = extremely tight.

    Dispense and 1 week

  • Lens Fit - Lens Deposition

    Graded on a scale of 0-4, with 0.25 increments, 0=no deposits; 4=deposit ≥ 0.5mm or film \>75% surface.

    Dispense and 1 week

  • Lens Fit - Centration

    (3 point scale: optimum, decentration acceptable, decentration unacceptable)

    Dispense and 1 Week

  • Lens Fit - Lens Wettability

    Graded on a scale of 0-4 with 0.25 increments, 0=excellent; 4=severely reduced.

    Dispense and 1 Week

  • Overall Lens Fit Acceptance

    Graded on a 0-4 point scale (where 0 = should not be worn, 4=perfect), providing a reason if Grade 2 or less

    Dispense and 1 Week

Study Arms (1)

somofilcon A 1-day soft contact lenses

EXPERIMENTAL

Habitual and refitted wearers of omafilcon A were refit into somofilcon A for a week

Device: somofilcon ADevice: omafilcon A

Interventions

contact lens

somofilcon A 1-day soft contact lenses

contact lens

somofilcon A 1-day soft contact lenses

Eligibility Criteria

Age17 Years+
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Is at least 17 years of age and has full legal capacity to volunteer;
  • Has read and signed an information consent letter;
  • Is willing and able to follow instructions and maintain the appointment schedule;
  • Habitually wears soft spherical contact lenses with a power between +6.00 to -10.00D (inclusive) for a minimum 5 days per week, 10 hours per day and anticipates no difficulty wearing contact lenses for 7 days per week, 10 hours per day;
  • Habitually wears, or is able to be adequately refit into Proclear 1 Day lenses;
  • Demonstrates an acceptable fit with Proclear 1 Day and Clariti 1 Day contact lenses;
  • Is correctable to a visual acuity of 0.20 LogMAR (approximately 20/30) or better (in each eye) with the study lenses or habitual correction;
  • Manifest cylindrical spectacle refraction does not exceed -1.00DC in either eye.

You may not qualify if:

  • Is participating in any concurrent clinical research study;
  • Has any known active\* ocular disease and/or infection;
  • Has a systemic condition that in the opinion of the investigator may affect a study outcome variable;
  • Is using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable;
  • Has known sensitivity to the diagnostic pharmaceuticals to be used in the study;
  • Is pregnant, lactating or planning a pregnancy at the time of enrolment (by verbal communication);
  • Is aphakic;
  • Has undergone refractive error surgery;
  • Is an employee of the Centre for Contact Lens Research;
  • Has taken part in another clinical or (pharmaceutical) research study within the last 7 days.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Center for Contact Lens Research, University of Waterloo

Waterloo, Ontario, N2L 3G1, Canada

Location

MeSH Terms

Conditions

Myopia

Condition Hierarchy (Ancestors)

Refractive ErrorsEye Diseases

Results Point of Contact

Title
Jose A. Vega OD MSc FAAO
Organization
CooperVision

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 18, 2017

First Posted

July 21, 2017

Study Start

July 6, 2017

Primary Completion

September 27, 2017

Study Completion

September 27, 2017

Last Updated

September 12, 2019

Results First Posted

February 4, 2019

Record last verified: 2019-08

Data Sharing

IPD Sharing
Will not share

Locations