Trial Outcomes & Findings for Dispensing Study for a New Study Lens (NCT NCT02642991)

NCT ID: NCT02642991

Last Updated: 2020-12-01

Results Overview

Distance visual acuity High Illumination was assessed using logMAR

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

44 participants

Primary outcome timeframe

Baseline (after 10 minutes of lens dispense)

Results posted on

2020-12-01

Participant Flow

Participant milestones

Participant milestones
Measure
Phenacite Test Lens Then Comfilcon A Control Lens
Participants were randomized to wear Phenacite test lens for one week then cross-over to wear comfilcon A control lens for one week. Phenacite: contact lens comfilcon A: contact lens
Comfilcon A Control Lens Then Phenacite Test Lens
Participants were randomized to wear comfilcon A control lens for one week then cross over to Phenacite test lens for one week. Phenacite: contact lens comfilcon A: contact lens
First Intervention
STARTED
22
22
First Intervention
COMPLETED
22
22
First Intervention
NOT COMPLETED
0
0
Second Intervention
STARTED
22
22
Second Intervention
COMPLETED
22
22
Second Intervention
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Overall Study
n=44 Participants
Subjects were randomized to wear phenacite study lens and comfilcon A control lens for one week.
Age, Categorical
<=18 years
0 Participants
n=44 Participants
Age, Categorical
Between 18 and 65 years
44 Participants
n=44 Participants
Age, Categorical
>=65 years
0 Participants
n=44 Participants
Age, Continuous
23.1 years
STANDARD_DEVIATION 3.5 • n=44 Participants
Sex: Female, Male
Female
34 Participants
n=44 Participants
Sex: Female, Male
Male
10 Participants
n=44 Participants
Region of Enrollment
Canada
16 participants
n=44 Participants
Region of Enrollment
United States
28 participants
n=44 Participants

PRIMARY outcome

Timeframe: Baseline (after 10 minutes of lens dispense)

Distance visual acuity High Illumination was assessed using logMAR

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Distance Visual Acuity (VA) - High Illumination
Monocular
-0.10 logMAR
Standard Deviation 0.07
-0.11 logMAR
Standard Deviation 0.08
Distance Visual Acuity (VA) - High Illumination
Binocular
-0.15 logMAR
Standard Deviation 0.06
-0.17 logMAR
Standard Deviation 0.07

PRIMARY outcome

Timeframe: 1 week

Distance visual acuity High Illumination was assessed using logMAR

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Distance Visual Acuity (VA) - High Illumination
Monocular
-0.10 logMAR
Standard Deviation 0.08
-0.11 logMAR
Standard Deviation 0.08
Distance Visual Acuity (VA) - High Illumination
Binocular
-0.15 logMAR
Standard Deviation 0.07
-0.16 logMAR
Standard Deviation 0.06

PRIMARY outcome

Timeframe: Baseline (after 10 minutes of lens dispense)

Near Visual Acuity (VA) - High Illumination assessed using logMAR

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Near Visual Acuity (VA) - High Illumination
Monocular
-0.07 logMAR
Standard Deviation 0.09
-0.08 logMAR
Standard Deviation 0.08
Near Visual Acuity (VA) - High Illumination
Binocular
-0.13 logMAR
Standard Deviation 0.09
-0.14 logMAR
Standard Deviation 0.08

PRIMARY outcome

Timeframe: 1 week

Near Visual Acuity (VA) - High Illumination assessed using logMAR

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Near Visual Acuity (VA) - High Illumination
Monocular
-0.06 logMAR
Standard Deviation 0.10
-0.07 logMAR
Standard Deviation 0.09
Near Visual Acuity (VA) - High Illumination
Binocular
-0.11 logMAR
Standard Deviation 0.09
-0.13 logMAR
Standard Deviation 0.10

PRIMARY outcome

Timeframe: Baseline (after 10 minutes of lens dispense)

Distance Visual Acuity (VA) - Low Illumination assessed using logMAR

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Distance Visual Acuity (VA) - Low Illumination
Monocular
0.07 logMAR
Standard Deviation 0.08
0.05 logMAR
Standard Deviation 0.08
Distance Visual Acuity (VA) - Low Illumination
Binocular
0.02 logMAR
Standard Deviation 0.06
0.00 logMAR
Standard Deviation 0.06

PRIMARY outcome

Timeframe: 1 week

Distance Visual Acuity (VA) - Low Illumination assessed using logMAR

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Distance Visual Acuity (VA) - Low Illumination
Monocular
0.06 logMAR
Standard Deviation 0.08
0.05 logMAR
Standard Deviation 0.10
Distance Visual Acuity (VA) - Low Illumination
Binocular
-0.01 logMAR
Standard Deviation 0.06
0.01 logMAR
Standard Deviation 0.07

PRIMARY outcome

Timeframe: Baseline (after 10 minutes of lens dispense)

Near Visual Acuity (VA) - Low illumination assessed using logMAR

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Near Visual Acuity (VA) - Low Illumination
Monocular
0.15 logMAR
Standard Deviation 0.16
0.14 logMAR
Standard Deviation 0.15
Near Visual Acuity (VA) - Low Illumination
Binocular
0.10 logMAR
Standard Deviation 0.16
0.08 logMAR
Standard Deviation 0.15

PRIMARY outcome

Timeframe: 1 week

Near Visual Acuity (VA) - Low illumination assessed using logMAR

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Near Visual Acuity (VA) - Low Illumination
Monocular
0.16 logMAR
Standard Deviation 0.17
0.18 logMAR
Standard Deviation 0.17
Near Visual Acuity (VA) - Low Illumination
Binocular
0.09 logMAR
Standard Deviation 0.16
0.11 logMAR
Standard Deviation 0.17

PRIMARY outcome

Timeframe: Baseline (after 10 minutes of lens dispense)

Subjective scoring of Quality of Distance Vision assessed using 0-100 continuous scale: (0=extremely poor vision all of the time. 100=excellent vision all of the time)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Quality of Distance Vision
91 units on a scale
Standard Deviation 9
88 units on a scale
Standard Deviation 15

PRIMARY outcome

Timeframe: 1 week

Subjective scoring of Quality of Distance Vision assessed using 0-100 continuous scale: (0=extremely poor vision all of the time. 100=excellent vision all of the time)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Quality of Distance Vision
87 units on a scale
Standard Deviation 16
90 units on a scale
Standard Deviation 12

PRIMARY outcome

Timeframe: Baseline (After 10 minutes of lens dispense)

Patient subjective scoring for quality of near vision using 0-100 continuous scale: 0=extremely poor vision all of the time. 100=excellent vision all of the time

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Quality of Near Vision
94 units on a scale
Standard Deviation 8
91 units on a scale
Standard Deviation 11

PRIMARY outcome

Timeframe: 1 week

Patient subjective scoring for quality of near vision using 0-100 continuous scale: 0=extremely poor vision all of the time. 100=excellent vision all of the time

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Quality of Near Vision
90 units on a scale
Standard Deviation 12
90 units on a scale
Standard Deviation 12

PRIMARY outcome

Timeframe: Baseline (After 10 minutes of lens dispense)

Subjective scoring of Quality of Vision with digital device use assessed using 0-100 continuous scale: (0=extremely poor vision all of the time. 100=excellent vision all of the time)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Quality of Vision With Digital Device Use
96 units on a scale
Standard Deviation 8
94 units on a scale
Standard Deviation 7

PRIMARY outcome

Timeframe: 1 week

Subjective scoring of Quality of Vision with digital device use assessed using 0-100 continuous scale: (0=extremely poor vision all of the time. 100=excellent vision all of the time)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Quality of Vision With Digital Device Use
91 units on a scale
Standard Deviation 13
90 units on a scale
Standard Deviation 12

PRIMARY outcome

Timeframe: Baseline (After 10 minutes of lens dispense)

Subjective scoring of Quality of Intermediate Vision assessed using 0-100 continuous scale: (0=extremely poor vision all of the time. 100=excellent vision all of the time)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Quality of Intermediate Vision
97 units on a scale
Standard Deviation 6
93 units on a scale
Standard Deviation 9

PRIMARY outcome

Timeframe: 1 week

Subjective scoring of Quality of Intermediate Vision assessed using 0-100 continuous scale: (0=extremely poor vision all of the time. 100=excellent vision all of the time)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Quality of Intermediate Vision
92 units on a scale
Standard Deviation 11
92 units on a scale
Standard Deviation 10

PRIMARY outcome

Timeframe: Baseline (After 10 minutes of lens dispense)

Subjective scoring of overall vision quality assessed using 0-100 continuous scale: (0=extremely poor vision all of the time. 100=excellent vision all of the time)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Overall Vision Quality
95 units on a scale
Standard Deviation 6
89 units on a scale
Standard Deviation 13

PRIMARY outcome

Timeframe: 1 week

Subjective scoring of overall vision quality assessed using 0-100 continuous scale: (0=extremely poor vision all of the time. 100=excellent vision all of the time)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Overall Vision Quality
88 units on a scale
Standard Deviation 15
89 units on a scale
Standard Deviation 12

SECONDARY outcome

Timeframe: 1 week

Bulbar hyperemia assessment using 5 categories: (0=None, 1= Slight injection to conjunctival vessels, 2= Mild injection, 3= Moderate injection, 4= Severe injection) in (0.25 steps)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Biomicroscopy Findings - Bulbar Hyperemia
1.24 units on a scale
Standard Deviation 0.67
1.37 units on a scale
Standard Deviation 0.82

SECONDARY outcome

Timeframe: 1 week

Investigator assessment using 5 categories: (0=None, 1= Slight injection to conjunctival vessels, 2= Mild injection, 3= Moderate injection, 4= Severe injection) in (0.25 steps)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Biomicroscopy Findings- Limbal Hyperemia
0.98 units on a scale
Standard Deviation 0.69
1.21 units on a scale
Standard Deviation 0.89

SECONDARY outcome

Timeframe: 1 week

Investigator Assessment on Biomicroscopy Findings - Corneal Staining Extent on a scale of 0-4 : 0=No staining, 1=1-15% of area, 2=16-30% of area, 3=31-45% of area, 4= \>45% of area

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Biomicroscopy Findings - Corneal Staining Extent
Central
0.05 units on a scale
Standard Deviation 0.21
0.10 units on a scale
Standard Deviation 0.34
Biomicroscopy Findings - Corneal Staining Extent
Nasal
0.14 units on a scale
Standard Deviation 0.34
0.16 units on a scale
Standard Deviation 0.39
Biomicroscopy Findings - Corneal Staining Extent
Temporal
0.07 units on a scale
Standard Deviation 0.26
0.03 units on a scale
Standard Deviation 0.20
Biomicroscopy Findings - Corneal Staining Extent
Superior
0.13 units on a scale
Standard Deviation 0.37
0.19 units on a scale
Standard Deviation 0.40
Biomicroscopy Findings - Corneal Staining Extent
Inferior
0.34 units on a scale
Standard Deviation 0.58
0.51 units on a scale
Standard Deviation 0.74

SECONDARY outcome

Timeframe: 1 week

Patient subjective scoring using 0-100 continuous scale:0=Intolerable;100=Not noticable

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Ghosting - Distance Vision
93 units on a scale
Standard Deviation 12
93 units on a scale
Standard Deviation 12

SECONDARY outcome

Timeframe: 1 week

Patient subjective scoring using 0-100 continuous scale:0=Intolerable;100=Not noticable

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Ghosting - Near Vision
93 units on a scale
Standard Deviation 10
93 units on a scale
Standard Deviation 10

SECONDARY outcome

Timeframe: Baseline (After 10 minutes of lens dispense)

Patient subjective scoring using 0-100 continuous scale, 0= cannot be worn, 100= cannot be felt ever.

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Overall Comfort
91 units on a scale
Standard Deviation 8
89 units on a scale
Standard Deviation 12

SECONDARY outcome

Timeframe: 1 week

Patient subjective scoring for overall comfort using 0-100 continuous scale, 0= cannot be worn, 100= cannot be felt ever.

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Overall Comfort
78 units on a scale
Standard Deviation 23
79 units on a scale
Standard Deviation 19

SECONDARY outcome

Timeframe: Baseline (after 10 minutes of lens dispense)

Patient subjective scoring for overall dryness using 0-100 continuous scale, 0=cannot be worn, 100=no dryness experienced at any time.

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Overall Dryness
92 units on a scale
Standard Deviation 12
92 units on a scale
Standard Deviation 12

SECONDARY outcome

Timeframe: 1 week

Patient subjective scoring for overall dryness using 0-100 continuous scale, 0=cannot be worn, 100=no dryness experienced at any time.

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Overall Dryness
76 units on a scale
Standard Deviation 23
77 units on a scale
Standard Deviation 21

SECONDARY outcome

Timeframe: 1 week

Subjective rating of lens preference for overall vision preference (Phenacite, comfilcon A, No preference)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Lens Preference - Overall Vision Preference
Phenacite
14 Participants
Lens Preference - Overall Vision Preference
comfilcon A
25 Participants
Lens Preference - Overall Vision Preference
No Preference
5 Participants

SECONDARY outcome

Timeframe: 1 week

Subjective rating of change in eye fatigue frequency of tiredness assessed using Eye fatigue Experience Questionnaire (EFEG)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Ratings of Change in Frequency of Tiredness
Much Better
11 percentage of participants
18 percentage of participants
Subjective Ratings of Change in Frequency of Tiredness
Better
50 percentage of participants
39 percentage of participants
Subjective Ratings of Change in Frequency of Tiredness
No Difference
36 percentage of participants
39 percentage of participants
Subjective Ratings of Change in Frequency of Tiredness
Worse
0 percentage of participants
4 percentage of participants
Subjective Ratings of Change in Frequency of Tiredness
Much Worse
4 percentage of participants
0 percentage of participants

SECONDARY outcome

Timeframe: 1 week

Subjective rating of change in eye fatigue severity of tiredness assessed using Eye fatigue Experience Questionnaire (EFEG)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Ratings of Change in Severity of Tiredness
Much Better
17 percentage of participants
17 percentage of participants
Subjective Ratings of Change in Severity of Tiredness
Better
48 percentage of participants
39 percentage of participants
Subjective Ratings of Change in Severity of Tiredness
No Difference
26 percentage of participants
35 percentage of participants
Subjective Ratings of Change in Severity of Tiredness
Worse
4 percentage of participants
9 percentage of participants
Subjective Ratings of Change in Severity of Tiredness
Much Worse
4 percentage of participants
0 percentage of participants

SECONDARY outcome

Timeframe: 1 week

Subjective rating of change in eye fatigue bothersome rating for tiredness assessed using Eye fatigue Experience Questionnaire (EFEG)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Ratings of Change in Bothersome Rating for Tiredness
Much Better
20 percentage of participants
10 percentage of participants
Subjective Ratings of Change in Bothersome Rating for Tiredness
Better
45 percentage of participants
45 percentage of participants
Subjective Ratings of Change in Bothersome Rating for Tiredness
No Difference
35 percentage of participants
40 percentage of participants
Subjective Ratings of Change in Bothersome Rating for Tiredness
Worse
0 percentage of participants
5 percentage of participants
Subjective Ratings of Change in Bothersome Rating for Tiredness
Much Worse
0 percentage of participants
0 percentage of participants

SECONDARY outcome

Timeframe: 1 week

Subjective rating of change in eye fatigue frequency of dryness assessed using Eye fatigue Experience Questionnaire (EFEG)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Ratings of Change in Frequency of Dryness
Much Better
15 percentage of participants
20 percentage of participants
Subjective Ratings of Change in Frequency of Dryness
Better
35 percentage of participants
15 percentage of participants
Subjective Ratings of Change in Frequency of Dryness
No Difference
25 percentage of participants
35 percentage of participants
Subjective Ratings of Change in Frequency of Dryness
Worse
15 percentage of participants
25 percentage of participants
Subjective Ratings of Change in Frequency of Dryness
Much Worse
10 percentage of participants
5 percentage of participants

SECONDARY outcome

Timeframe: 1 week

Subjective rating of change in eye fatigue severity of dryness assessed using Eye fatigue Experience Questionnaire (EFEG)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Ratings of Change in Severity of Dryness
Much Better
9 percentage of participants
5 percentage of participants
Subjective Ratings of Change in Severity of Dryness
Better
41 percentage of participants
41 percentage of participants
Subjective Ratings of Change in Severity of Dryness
No Difference
32 percentage of participants
27 percentage of participants
Subjective Ratings of Change in Severity of Dryness
Worse
9 percentage of participants
23 percentage of participants
Subjective Ratings of Change in Severity of Dryness
Much Worse
9 percentage of participants
5 percentage of participants

SECONDARY outcome

Timeframe: 1 week

Subjective rating of change in eye fatigue bothersome rating for dryness assessed using Eye fatigue Experience Questionnaire (EFEG)

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Ratings of Change in Bothersome Rating of Dryness
Much Better
15 percentage of participants
10 percentage of participants
Subjective Ratings of Change in Bothersome Rating of Dryness
Better
40 percentage of participants
40 percentage of participants
Subjective Ratings of Change in Bothersome Rating of Dryness
No Difference
25 percentage of participants
25 percentage of participants
Subjective Ratings of Change in Bothersome Rating of Dryness
Worse
15 percentage of participants
20 percentage of participants
Subjective Ratings of Change in Bothersome Rating of Dryness
Much Worse
5 percentage of participants
5 percentage of participants

SECONDARY outcome

Timeframe: 1 week

Subjective questionnaire response for " My eyes don't feel strained while wearing these lenses" - Agree, Disagree

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Questionnaire Response - Eye Strain
Agree
75 percentage of participants
75 percentage of participants
Subjective Questionnaire Response - Eye Strain
Disagree
25 percentage of participants
25 percentage of participants

SECONDARY outcome

Timeframe: 1 week

Subjective questionnaire response for " These lenses make my eyes feel good" - Agree, Disagree

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Questionnaire Response - Eye Feel Good
Agree
86 percentage of participants
71 percentage of participants
Subjective Questionnaire Response - Eye Feel Good
Disagree
14 percentage of participants
29 percentage of participants

SECONDARY outcome

Timeframe: 1 week

Subjective questionnaire response for " These lenses make my eyes feel relaxed" - Agree, Disagree

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Questionnaire Response - Eye Feel Relaxed
Agree
79 percentage of participants
79 percentage of participants
Subjective Questionnaire Response - Eye Feel Relaxed
Disagree
21 percentage of participants
21 percentage of participants

SECONDARY outcome

Timeframe: 1 week

Subjective questionnaire response for " These lenses help my vision" - Agree, Disagree

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Questionnaire Response - Vision
Agree
96 percentage of participants
96 percentage of participants
Subjective Questionnaire Response - Vision
Disagree
4 percentage of participants
4 percentage of participants

SECONDARY outcome

Timeframe: 1 week

Subjective questionnaire response for " These lenses make my eyes feel less tired" - Agree, Disagree

Outcome measures

Outcome measures
Measure
Phenacite Test Lens
n=44 Participants
Participants were randomized to wear Phenacite test lens for one week Phenacite: contact lens
Comfilcon A Control Lens
n=44 Participants
Participants were randomized to wear comfilcon A control lens for one week comfilcon A: contact lens
Subjective Questionnaire Response - Eye Tired
Agree
82 percentage of participants
75 percentage of participants
Subjective Questionnaire Response - Eye Tired
Disagree
18 percentage of participants
25 percentage of participants

Adverse Events

Phenacite Test Lens

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Comfilcon A Control Lens

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Paul Chamberlain

CooperVision, Inc.

Phone: 925 730-6754

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place