One Week Assessment of The Phenacite Lens

Sponsor
Coopervision, Inc. (Industry)
Overall Status
Completed
CT.gov ID
NCT02553395
Collaborator
(none)
30
1
2
30
30.4

Study Details

Study Description

Brief Summary

This study will investigate performance criteria over one week of daily wear to determine if the Study Test contact lens performs equivalently to the comfilcon A contact lenses in terms of subjective ratings and of visual performance.

The study test lens was not the final optical design and the study results were not used for the design validation.

Condition or Disease Intervention/Treatment Phase
  • Device: Phenacite (Test) contact lens
  • Device: comfilcon A contact lens
N/A

Detailed Description

This will be double-masked, randomized, bilateral crossover study comparing the Study Test lens against the comfilcon A control lens, each worn over one week of daily wear.

The study test lens was not the final optical design and the study results were not used for the design validation.

Study Design

Study Type:
Interventional
Actual Enrollment :
30 participants
Allocation:
Randomized
Intervention Model:
Crossover Assignment
Masking:
Double (Participant, Investigator)
Primary Purpose:
Other
Official Title:
One Week Assessment of The Phenacite Lens
Study Start Date :
Sep 1, 2015
Actual Primary Completion Date :
Sep 1, 2015
Actual Study Completion Date :
Oct 1, 2015

Arms and Interventions

Arm Intervention/Treatment
Experimental: Phenacite contact lens

Study Test Contact Lens

Device: Phenacite (Test) contact lens

Active Comparator: comfilcon A contact lens

Control Contact Lens

Device: comfilcon A contact lens

Outcome Measures

Primary Outcome Measures

  1. Binocular Distance Visual Acuity (VA) - High Illumination High Contrast [Baseline - After 5 minutes of lens settling]

    Binocular Distance visual acuity High Illumination High Contrast was assessed using logMAR (0.02 logMAR= 1 letter)

  2. Binocular Distance Visual Acuity (VA) -High Illumination High Contrast [1 week]

    Binocular Distance visual acuity High Illumination High Contrast was assessed using logMAR (0.02 logMAR= 1 letter)

  3. Binocular Near Visual Acuity (VA) - High Illumination High Contrast [Baseline - after 5 minutes of lens dispense]

    Binocular Near Visual Acuity High Illumination High Contrast was assessed on logMAR VA (0.02 logMAR= 1 letter)

  4. Binocular Near Visual Acuity (VA) - High Illumination High Contrast [1-week]

    Binocular Near Visual Acuity High Illumination High Contrast was assessed on logMAR VA (0.02 logMAR= 1 letter)

  5. Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast [Baseline (After 5 minutes of lens settling)]

    Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)

  6. Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast [1 week]

    Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)

  7. Binocular Near Visual Acuity (VA) - Low Illumination High Contrast [Baseline (after 5 minutes of lens settling)]

    Binocular Near Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)

  8. Binocular Near Visual Acuity (VA) - Low Illumination High Contrast [1week]

    Binocular Near Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)

  9. Subjective Ratings for Distance Quality of Vision [1 week]

    Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Distance Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time)

  10. Subjective Ratings for Intermediate Quality of Vision [1 week]

    Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Intermediate Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time)

  11. Subjective Ratings for Near Quality of Vision [1 week]

    Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Near Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time)

Secondary Outcome Measures

  1. Post Blink Movement - [Baseline (After 5 minutes of lens dispense)]

    Post blink movement was assessed by the investigator by the amount of movement (to the nearest 0.1mm) immediately after the blink (0.1mm steps)

  2. Post Blink Movement [1 week]

    Investigator assessment of Amount of movement (to the nearest 0.1mm) immediately after the blink (0.1mm steps)

  3. Push - Up Test for Lens Tightness [Baseline (After 5 minutes of lens dispense)]

    Investigator assessment using Continuous Scale 0-100% (1% steps): 0%=Falls from cornea without lid support, 50%=Optimum, 100%=No movement

  4. Push - Up Test for Lens Tightness [1 week]

    Investigator assessment using Continuous Scale 0-100% (1% steps): 0%=Falls from cornea without lid support, 50%=Optimum, 100%=No movement

  5. Lens Mobility Rating [Baseline (after 5 minutes of lens dispense)]

    Investigator assessment using 5 Categories in 0.50 steps: 0=Immobile - no lag in any versions, 1=Restricted - no lag in some directions but slight lag (0-0.25mm) in others, 2=Secure - slight lag (0.25-0.5mm in each version), 3=Unrestricted - freely lags in a controlled manner on all versions, but not excessive (0.5-1.0mm), 4=Very mobile - excessive lag (>1mm) on versions in all directions in 0.25 steps

  6. Lens Mobility Rating [1 week]

    Investigator assessment using 5 Categories in 0.50 steps: 0=Immobile - no lag in any versions, 1=Restricted - no lag in some directions but slight lag (0-0.25mm) in others, 2=Secure - slight lag (0.25-0.5mm in each version), 3=Unrestricted - freely lags in a controlled manner on all versions, but not excessive (0.5-1.0mm), 4=Very mobile - excessive lag (>1mm) on versions in all directions in 0.25 steps

  7. Overall Lens Fit Acceptance [Baseline (After 5 minutes of lens dispense)]

    Investigator assessment using 5 Categories in 0.25 steps: 0=Can't be worn, 1=Poor - should not be dispensed although no immediate danger, 2=Fair, 3=Good, 4=Optimum in 0.25 steps

  8. Overall Lens Fit Acceptance [1 week]

    Investigator assessment using 5 Categories in 0.25 steps: 0=Can't be worn,, 1=Poor - should not be dispensed although no immediate danger, 2=Fair, 3=Good, 4=Optimum in 0.25 steps

  9. Subjective Lens Preference - Distance Vision [1 week]

    Patient subjective preference: Phenacite lens, comfilcon A or No Preference

  10. Subjective Lens Preference -Overall Vision Preference [1 week]

    Patient subjective preference: Phenacite test lens, comfilcon A or No Preference

  11. Subjective Lens Preference - Comfort [1 week]

    Patient subjective preference: Phenacite test lens, comfilcon A or No Preference

  12. Subjective Overall Lens Preference [1 week]

    Patient subjective overall preference: Phenacite test lens, comfilcon A or No Preference

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 35 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • A person is eligible for inclusion in the study if he/she:

  • Oculo-visual examination in the last two years

  • Between 18 and 35 years of age and has full legal capacity to volunteer

  • Has read and understood the informed consent letter

  • Is willing and able to follow instructions and maintain the appointment schedule

  • Is correctable to a visual acuity of 20/25 or better (in each eye) with their habitual correction or 20/20 best corrected

  • Currently wears, or has previously successfully worn, soft contact lenses between -1.00D (Diopter) and -4.50D

  • Spherical Contact Lens Rx between -1.00 and -4.00 and spectacle cylinder <-0.75

  • Currently spends a minimum of 4 hours a day; 5 days a week on digital devices and can replicate this time during the study period

  • Is willing and able to wear the study contact lenses a minimum of 10 hours per day; 5 days a week.

Exclusion Criteria:
  • A person will be excluded from the study if he/she:

  • Has never worn contact lenses before.

  • Has any systemic disease affecting ocular health.

  • Is using any systemic or topical medications that will affect ocular health.

  • Has any ocular pathology or severe insufficiency of lacrimal secretion (moderate to severe dry eyes) that would affect the wearing of contact lenses.

  • Has persistent, clinically significant corneal or conjunctival staining using sodium fluorescein dye.

  • Has any clinically significant lid or conjunctival abnormalities, active neovascularization or any central corneal scars.

  • Is aphakic.

  • Has undergone corneal refractive surgery.

  • Is participating in any other type of eye related clinical or research study.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Clinical Optics Research Lab (CORL) Indiana University School of Optometry, Indiana University Bloomington Indiana United States 47405

Sponsors and Collaborators

  • Coopervision, Inc.

Investigators

  • Principal Investigator: Peter Kollbaum, OD, PhD, Clinical Optics Research Lab (CORL)

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Coopervision, Inc.
ClinicalTrials.gov Identifier:
NCT02553395
Other Study ID Numbers:
  • CV-15-40
First Posted:
Sep 17, 2015
Last Update Posted:
Dec 22, 2020
Last Verified:
Nov 1, 2020
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Phenacite Contact Lens Then Comfilcon A Comfilcon A Contact Lens Then Phenacite Contact Lens
Arm/Group Description Subjects were randomized to wear test lenses for one week and then cross-over to comfilcon A contact lens for one week. Phenacite : Contact Lens comfilcon A: contact lens Subjects were randomized to wear comfilcon A lenses for one week and then cross-over to test contact lens for one week. comfilcon A: contact lens Phenacite : Contact Lens
Period Title: First Intervention
STARTED 12 18
COMPLETED 12 18
NOT COMPLETED 0 0
Period Title: First Intervention
STARTED 12 18
COMPLETED 12 18
NOT COMPLETED 0 0

Baseline Characteristics

Arm/Group Title Overall Study
Arm/Group Description Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week.
Overall Participants 30
Age (Count of Participants)
<=18 years
0
0%
Between 18 and 65 years
30
100%
>=65 years
0
0%
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
25
(3)
Sex: Female, Male (Count of Participants)
Female
24
80%
Male
6
20%
Race and Ethnicity Not Collected (Count of Participants)
Region of Enrollment (participants) [Number]
United States
30
100%

Outcome Measures

1. Primary Outcome
Title Binocular Distance Visual Acuity (VA) - High Illumination High Contrast
Description Binocular Distance visual acuity High Illumination High Contrast was assessed using logMAR (0.02 logMAR= 1 letter)
Time Frame Baseline - After 5 minutes of lens settling

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Mean (Standard Deviation) [logMAR]
-0.22
(0.05)
-0.24
(0.05)
2. Primary Outcome
Title Binocular Distance Visual Acuity (VA) -High Illumination High Contrast
Description Binocular Distance visual acuity High Illumination High Contrast was assessed using logMAR (0.02 logMAR= 1 letter)
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Mean (Standard Deviation) [logMAR]
-0.20
(0.05)
-0.22
(0.06)
3. Primary Outcome
Title Binocular Near Visual Acuity (VA) - High Illumination High Contrast
Description Binocular Near Visual Acuity High Illumination High Contrast was assessed on logMAR VA (0.02 logMAR= 1 letter)
Time Frame Baseline - after 5 minutes of lens dispense

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Mean (Standard Deviation) [logMAR]
-0.18
(0.06)
-0.19
(0.07)
4. Primary Outcome
Title Binocular Near Visual Acuity (VA) - High Illumination High Contrast
Description Binocular Near Visual Acuity High Illumination High Contrast was assessed on logMAR VA (0.02 logMAR= 1 letter)
Time Frame 1-week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Mean (Standard Deviation) [logMAR]
-0.19
(0.06)
-0.19
(0.06)
5. Primary Outcome
Title Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast
Description Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)
Time Frame Baseline (After 5 minutes of lens settling)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Mean (Standard Deviation) [LogMAR]
-0.02
(0.05)
-0.04
(0.07)
6. Primary Outcome
Title Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast
Description Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Mean (Standard Deviation) [LogMAR]
0.00
(0.08)
-0.04
(0.06)
7. Primary Outcome
Title Binocular Near Visual Acuity (VA) - Low Illumination High Contrast
Description Binocular Near Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)
Time Frame Baseline (after 5 minutes of lens settling)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Mean (Standard Deviation) [LogMAR]
-0.00
(0.07)
0.00
(0.07)
8. Primary Outcome
Title Binocular Near Visual Acuity (VA) - Low Illumination High Contrast
Description Binocular Near Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)
Time Frame 1week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Mean (Standard Deviation) [LogMAR]
-0.01
(0.08)
-0.00
(0.06)
9. Primary Outcome
Title Subjective Ratings for Distance Quality of Vision
Description Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Distance Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time)
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Overall Study
Arm/Group Description Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week.
Measure Participants 30
Phenacite Test Contact Lens
85
(15)
comfilcon A control lens
91
(9)
10. Primary Outcome
Title Subjective Ratings for Intermediate Quality of Vision
Description Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Intermediate Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time)
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Overall Study
Arm/Group Description Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week.
Measure Participants 30
Phenacite Test Lens
91
(10)
comfilcon A control lens
95
(7)
11. Primary Outcome
Title Subjective Ratings for Near Quality of Vision
Description Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Near Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time)
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Overall Study
Arm/Group Description Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week.
Measure Participants 30
Phenacite Test Lens
92
(11)
comfilcon A control lens
95
(6)
12. Secondary Outcome
Title Post Blink Movement -
Description Post blink movement was assessed by the investigator by the amount of movement (to the nearest 0.1mm) immediately after the blink (0.1mm steps)
Time Frame Baseline (After 5 minutes of lens dispense)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Right eye
0.23
(0.06)
0.24
(0.08)
Left eye
0.23
(0.06)
0.25
(0.08)
13. Secondary Outcome
Title Post Blink Movement
Description Investigator assessment of Amount of movement (to the nearest 0.1mm) immediately after the blink (0.1mm steps)
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Right eye
0.24
(0.06)
0.24
(0.07)
Left Eye
0.25
(0.08)
0.25
(0.06)
14. Secondary Outcome
Title Push - Up Test for Lens Tightness
Description Investigator assessment using Continuous Scale 0-100% (1% steps): 0%=Falls from cornea without lid support, 50%=Optimum, 100%=No movement
Time Frame Baseline (After 5 minutes of lens dispense)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Right eye
50.83
(4.17)
49.67
(2.92)
Left Eye
50.33
(4.14)
49.17
(3.49)
15. Secondary Outcome
Title Push - Up Test for Lens Tightness
Description Investigator assessment using Continuous Scale 0-100% (1% steps): 0%=Falls from cornea without lid support, 50%=Optimum, 100%=No movement
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Right Eye
50.33
(4.14)
49.17
(3.73)
Left eye
49.33
(6.53)
49.17
(2.65)
16. Secondary Outcome
Title Lens Mobility Rating
Description Investigator assessment using 5 Categories in 0.50 steps: 0=Immobile - no lag in any versions, 1=Restricted - no lag in some directions but slight lag (0-0.25mm) in others, 2=Secure - slight lag (0.25-0.5mm in each version), 3=Unrestricted - freely lags in a controlled manner on all versions, but not excessive (0.5-1.0mm), 4=Very mobile - excessive lag (>1mm) on versions in all directions in 0.25 steps
Time Frame Baseline (after 5 minutes of lens dispense)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Right eye
2.97
(0.20)
3.00
(0.26)
Left eye
2.97
(0.22)
3.02
(0.25)
17. Secondary Outcome
Title Lens Mobility Rating
Description Investigator assessment using 5 Categories in 0.50 steps: 0=Immobile - no lag in any versions, 1=Restricted - no lag in some directions but slight lag (0-0.25mm) in others, 2=Secure - slight lag (0.25-0.5mm in each version), 3=Unrestricted - freely lags in a controlled manner on all versions, but not excessive (0.5-1.0mm), 4=Very mobile - excessive lag (>1mm) on versions in all directions in 0.25 steps
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Right Eye
2.98
(0.25)
3.04
(0.16)
Left eye
3.02
(0.31)
3.04
(0.16)
18. Secondary Outcome
Title Overall Lens Fit Acceptance
Description Investigator assessment using 5 Categories in 0.25 steps: 0=Can't be worn, 1=Poor - should not be dispensed although no immediate danger, 2=Fair, 3=Good, 4=Optimum in 0.25 steps
Time Frame Baseline (After 5 minutes of lens dispense)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Right Eye
3.48
(0.22)
3.42
(0.36)
Left Eye
3.46
(0.22)
3.44
(0.33)
19. Secondary Outcome
Title Overall Lens Fit Acceptance
Description Investigator assessment using 5 Categories in 0.25 steps: 0=Can't be worn,, 1=Poor - should not be dispensed although no immediate danger, 2=Fair, 3=Good, 4=Optimum in 0.25 steps
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
Measure Participants 30 30
Right eye
3.42
(0.28)
3.48
(0.28)
Left Eye
3.35
(0.52)
3.49
(0.28)
20. Secondary Outcome
Title Subjective Lens Preference - Distance Vision
Description Patient subjective preference: Phenacite lens, comfilcon A or No Preference
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Overall Study
Arm/Group Description Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week.
Measure Participants 30
Phenacite Lens
17
56.7%
comfilcon A
50
166.7%
No preference
33
110%
21. Secondary Outcome
Title Subjective Lens Preference -Overall Vision Preference
Description Patient subjective preference: Phenacite test lens, comfilcon A or No Preference
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Overall Study
Arm/Group Description Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week.
Measure Participants 30
Phenacite
27
90%
comfilcon A
56
186.7%
No Preference
17
56.7%
22. Secondary Outcome
Title Subjective Lens Preference - Comfort
Description Patient subjective preference: Phenacite test lens, comfilcon A or No Preference
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Overall Study
Arm/Group Description Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week.
Measure Participants 30
Phenacite
43
143.3%
comfilcon A
40
133.3%
No preference
17
56.7%
23. Secondary Outcome
Title Subjective Overall Lens Preference
Description Patient subjective overall preference: Phenacite test lens, comfilcon A or No Preference
Time Frame 1 week

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Overall Study
Arm/Group Description Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week.
Measure Participants 30
Phenacite
33
110%
comfilcon A
57
190%
No preference
10
33.3%

Adverse Events

Time Frame From dispense up to one week on each study lens, a total of 2 weeks.
Adverse Event Reporting Description
Arm/Group Title Phenacite Contact Lens Comfilcon A Contact Lens
Arm/Group Description Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens
All Cause Mortality
Phenacite Contact Lens Comfilcon A Contact Lens
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/30 (0%) 0/30 (0%)
Serious Adverse Events
Phenacite Contact Lens Comfilcon A Contact Lens
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/30 (0%) 0/30 (0%)
Other (Not Including Serious) Adverse Events
Phenacite Contact Lens Comfilcon A Contact Lens
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/30 (0%) 0/30 (0%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

Results Point of Contact

Name/Title Paul Chamberlain
Organization CooperVision Inc.
Phone 925 730-6754
Email PChamberlain@coopervision.com
Responsible Party:
Coopervision, Inc.
ClinicalTrials.gov Identifier:
NCT02553395
Other Study ID Numbers:
  • CV-15-40
First Posted:
Sep 17, 2015
Last Update Posted:
Dec 22, 2020
Last Verified:
Nov 1, 2020