Trial Outcomes & Findings for A Dispensing Clinical Trial of a Study Test Silicone Hydrogel Lens Against Control Lens Over 1 Week (NCT NCT02500368)
NCT ID: NCT02500368
Last Updated: 2020-07-29
Results Overview
Subjective ratings scale (0-100) assessed: 0=Cannot be worn, causes pain, 20=Frequently irritating, 40=Occasionally irritating, 60=Occasionally noticable but not irritating, 80=Rarely noticeable, 100=Cannot be felt ever. Time points for comfort: lens dispense at baseline, lens insertion at 1 week, and overall at 1 week.
COMPLETED
NA
41 participants
Baseline and 1 week
2020-07-29
Participant Flow
One participant discontinued from the study as a screen failure before lens randomization.
Participant milestones
| Measure |
Silicone Hydrogel Lens (Test), Then Enfilcon A Lens (Control)
Participants were randomized to wear silicone hydrogel lens (test) for 1 week, then cross over to the enfilcon A lens (control).
silicone hydrogel lens (test): contact lens
enfilcon A lens (control): contact lens
|
Enfilcon A Lens (Control), Then Silicone Hydrogel Lens (Test)
Participants were randomized to wear enfilcon A lens (control) for 1 week, then cross over to the silicone hydrogel lens (test).
enfilcon A lens (control): contact lens
silicone hydrogel lens (test): contact lens
|
|---|---|---|
|
First Intervention (1 Week)
STARTED
|
20
|
20
|
|
First Intervention (1 Week)
COMPLETED
|
20
|
20
|
|
First Intervention (1 Week)
NOT COMPLETED
|
0
|
0
|
|
Second Intervention (1 Week)
STARTED
|
20
|
20
|
|
Second Intervention (1 Week)
COMPLETED
|
20
|
20
|
|
Second Intervention (1 Week)
NOT COMPLETED
|
0
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
A Dispensing Clinical Trial of a Study Test Silicone Hydrogel Lens Against Control Lens Over 1 Week
Baseline characteristics by cohort
| Measure |
Overall Baseline Characteristics
n=41 Participants
Participants were randomized to wear silicone hydrogel lens (test) or enfilcon A lens (control) for 1 week during the cross over study.
|
|---|---|
|
Age, Continuous
|
24 years
n=5 Participants
|
|
Sex: Female, Male
Female
|
28 Participants
n=5 Participants
|
|
Sex: Female, Male
Male
|
13 Participants
n=5 Participants
|
PRIMARY outcome
Timeframe: Baseline and 1 weekSubjective ratings scale (0-100) assessed: 0=Cannot be worn, causes pain, 20=Frequently irritating, 40=Occasionally irritating, 60=Occasionally noticable but not irritating, 80=Rarely noticeable, 100=Cannot be felt ever. Time points for comfort: lens dispense at baseline, lens insertion at 1 week, and overall at 1 week.
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Comfort
Lens dispense at baseline
|
90 units on a scale
Standard Deviation 11
|
91 units on a scale
Standard Deviation 10
|
|
Comfort
Lens insertion at 1 week
|
92 units on a scale
Standard Deviation 9
|
90 units on a scale
Standard Deviation 14
|
|
Comfort
Overall comfort at 1 week
|
79 units on a scale
Standard Deviation 15
|
81 units on a scale
Standard Deviation 13
|
PRIMARY outcome
Timeframe: Baseline and 1 weekSubjective ratings scale (0-100): 0=Cannot be worn, extremely dry, 20=Frequently Irritating, 40=Occasionally irritating, 60=Occasionally noticeable but not irritating, 80=Rarely noticeable, 100=No dryness experienced at any time. Time points for dryness: lens dispense at baseline, lens insertion at 1 week, and overall at 1 week.
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Dryness
Lens dispense at baseline
|
94 units on a scale
Standard Deviation 10
|
94 units on a scale
Standard Deviation 10
|
|
Dryness
Lens insertion at 1 week
|
94 units on a scale
Standard Deviation 8
|
92 units on a scale
Standard Deviation 12
|
|
Dryness
Overall dryness at 1 week
|
75 units on a scale
Standard Deviation 19
|
78 units on a scale
Standard Deviation 16
|
SECONDARY outcome
Timeframe: Baseline and 1 weekGrading scale 0-4, 0.25 steps, 0=excellent; 4=severely reduced.
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Lens Wettability
Baseline
|
1.09 units on a scale
Standard Deviation 0.60
|
1.18 units on a scale
Standard Deviation 0.87
|
|
Lens Wettability
1 week
|
1.17 units on a scale
Standard Deviation 0.76
|
1.38 units on a scale
Standard Deviation 0.79
|
SECONDARY outcome
Timeframe: BaselineGrade ratings category (smooth, grainy, or other)
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=80 Eyes
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=80 Eyes
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Surface Appearance
Smooth
|
76 Eyes
|
70 Eyes
|
|
Surface Appearance
Grainy
|
3 Eyes
|
4 Eyes
|
|
Surface Appearance
Other
|
1 Eyes
|
6 Eyes
|
SECONDARY outcome
Timeframe: 1 weekGrade ratings category (smooth, grainy, or other)
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=80 Eyes
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=80 Eyes
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Surface Appearance
Smooth
|
77 Eyes
|
72 Eyes
|
|
Surface Appearance
Grainy
|
1 Eyes
|
4 Eyes
|
|
Surface Appearance
Other
|
2 Eyes
|
4 Eyes
|
SECONDARY outcome
Timeframe: Baseline and 1 weekLogarithm of the Minimum Angle or Resolution (LogMAR) Chart
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
High Contrast Acuity at High Room Illumination
Baseline
|
-0.10 LogMAR
Standard Deviation 0.06
|
-0.09 LogMAR
Standard Deviation 0.04
|
|
High Contrast Acuity at High Room Illumination
1 week
|
-0.10 LogMAR
Standard Deviation 0.05
|
-0.08 LogMAR
Standard Deviation 0.06
|
SECONDARY outcome
Timeframe: Baseline and 1 weekLens Deposits Scale 0-4, 0.25 steps. 0=excellent; 4=severely reduced
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Lens Deposition
Baseline
|
0.06 units on a scale
Standard Deviation 0.13
|
0.12 units on a scale
Standard Deviation 0.21
|
|
Lens Deposition
1 week
|
0.28 units on a scale
Standard Deviation 0.32
|
0.38 units on a scale
Standard Deviation 0.48
|
SECONDARY outcome
Timeframe: Baseline and 1 weekLenses were evaluated for defects, scratches, fibers, blue specks, and other findings.
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=80 Lenses
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=80 Lenses
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Lens Problems
Baseline, Blue specs
|
0 Lenses
|
2 Lenses
|
|
Lens Problems
Baseline, Fibers
|
0 Lenses
|
1 Lenses
|
|
Lens Problems
Baseline, Nick
|
0 Lenses
|
1 Lenses
|
|
Lens Problems
1 week, Blue specs
|
0 Lenses
|
2 Lenses
|
|
Lens Problems
1 week, Nick
|
0 Lenses
|
1 Lenses
|
|
Lens Problems
1 week, Particles
|
0 Lenses
|
3 Lenses
|
SECONDARY outcome
Timeframe: BaselineLens centration was evaluated by the conjunctival overlap to determine whether lens was slightly or excessively decentered. (mm, 0.1 steps) N - Nasal, T - Temporal, S - Superior, I - Interior, N/S - Nasal/Superior, N/I - Nasal/Interior, T/S - Temporal/Superior T/I - Temporal/Interior
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=80 Eyes
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=80 Eyes
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Lens Centration
No decentration
|
46 eyes
|
32 eyes
|
|
Lens Centration
N
|
4 eyes
|
3 eyes
|
|
Lens Centration
T
|
16 eyes
|
16 eyes
|
|
Lens Centration
S
|
6 eyes
|
6 eyes
|
|
Lens Centration
I
|
4 eyes
|
11 eyes
|
|
Lens Centration
N/S
|
0 eyes
|
0 eyes
|
|
Lens Centration
N/I
|
0 eyes
|
2 eyes
|
|
Lens Centration
T/S
|
2 eyes
|
6 eyes
|
|
Lens Centration
T/I
|
2 eyes
|
4 eyes
|
SECONDARY outcome
Timeframe: 1 weekLens centration was evaluated by the conjunctival overlap to determine whether lens was slightly or excessively decentered. (mm, 0.1 steps) N - Nasal, T - Temporal, S - Superior, I - Interior, N/S - Nasal/Superior, N/I - Nasal/Interior, T/S - Temporal/Superior T/I - Temporal/Interior
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=80 Eyes
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=80 Eyes
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Lens Centration
T/S
|
3 eyes
|
2 eyes
|
|
Lens Centration
No decentration
|
43 eyes
|
51 eyes
|
|
Lens Centration
N
|
1 eyes
|
1 eyes
|
|
Lens Centration
T
|
12 eyes
|
6 eyes
|
|
Lens Centration
S
|
8 eyes
|
4 eyes
|
|
Lens Centration
I
|
10 eyes
|
9 eyes
|
|
Lens Centration
N/S
|
1 eyes
|
0 eyes
|
|
Lens Centration
N/I
|
1 eyes
|
0 eyes
|
|
Lens Centration
T/I
|
1 eyes
|
7 eyes
|
SECONDARY outcome
Timeframe: Baseline and 1 weekPost-blink movement evaluated by estimating the distance the lens was moving immediately after a blink. Primary Gaze: (mm, 0.1 steps)
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Post-blink Movement
Baseline
|
0.26 mm steps
Standard Deviation 0.16
|
0.25 mm steps
Standard Deviation 0.10
|
|
Post-blink Movement
1 week
|
0.24 mm steps
Standard Deviation 0.10
|
0.27 mm steps
Standard Deviation 0.13
|
SECONDARY outcome
Timeframe: Baseline and 1 weekLens tightness Scale 0%-100%, 0%=extremely loose fit, 50%=optimal push resistance and smooth return, 100%=no movement.
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Lens Tightness
Baseline
|
50.9 percentage of tightness
Standard Deviation 7.8
|
48.1 percentage of tightness
Standard Deviation 6.3
|
|
Lens Tightness
1 week
|
48.8 percentage of tightness
Standard Deviation 9.1
|
47.9 percentage of tightness
Standard Deviation 6.4
|
SECONDARY outcome
Timeframe: Baseline and 1 weekSubjective ratings scale (0-100): 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. Different time points were taken for vision quality: lens dispense at baseline, lens insertion at 1 week, and overall at 1 week.
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Visual Quality
Lens dispense at baseline
|
94 units on a scale
Standard Deviation 7
|
93 units on a scale
Standard Deviation 9
|
|
Visual Quality
Lens insertion at 1 week
|
95 units on a scale
Standard Deviation 7
|
94 units on a scale
Standard Deviation 9
|
|
Visual Quality
Overall vision quality at 1 week
|
88 units on a scale
Standard Deviation 12
|
88 units on a scale
Standard Deviation 13
|
SECONDARY outcome
Timeframe: Baseline and 1 weekSubjective ratings scale (0-100): 0=Could not place lens on eye, 20=Frequently takes multiple attempts to place on eye; often unsuccessful, 40=Frequently takes multiple attempts to place on eye, 60=Occasionally takes a few attempts to place on eye, 80=Rarely difficult to place on eye, 100=Always easy to place lens on eye
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Ease of Lens Insertion
Baseline
|
97 units on a scale
Standard Deviation 5
|
92 units on a scale
Standard Deviation 10
|
|
Ease of Lens Insertion
1 week
|
91 units on a scale
Standard Deviation 9
|
90 units on a scale
Standard Deviation 10
|
SECONDARY outcome
Timeframe: 1 weekSubjective ratings scale (0-100): 0=Could not remove lens from eye, 20=Frequently takes multiple attempts to remove from eye; often unsuccessful, 40=Frequently takes multiple attempts to remove from eye, 60=Occasionally takes a few attempts to remove from eye, 80=Rarely difficult to remove from eye, 100=Always easy to remove lens from eye.
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Ease of Lens Removal
|
86 units on a scale
Standard Deviation 15
|
90 units on a scale
Standard Deviation 12
|
SECONDARY outcome
Timeframe: Baseline and 1 weekOverall Lens Fit Scale 0-4, 0.25 steps 0=Very poor (lens should not be worn at all); 1. Poor (lens could be worn with supervision only); 2. Fair (would prefer to refit, but clinically acceptable); 3. Good (fit could be slightly improved); 4. Very good (optimal)
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Overall Lens Fit
Baseline
|
3.35 units on a scale
Standard Deviation 0.42
|
3.33 units on a scale
Standard Deviation 0.36
|
|
Overall Lens Fit
1 week
|
3.36 units on a scale
Standard Deviation 0.41
|
3.38 units on a scale
Standard Deviation 0.48
|
SECONDARY outcome
Timeframe: Baseline and 1 weekBulbar hyperemia assessed using scale 0-4, 0.5 steps, 0=No hyperemia, 4=Severe hyperemia.
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Bulbar Hyperemia
Baseline
|
1.96 units on a scale
Standard Deviation 0.50
|
1.96 units on a scale
Standard Deviation 0.50
|
|
Bulbar Hyperemia
1 week
|
1.87 units on a scale
Standard Deviation 0.44
|
1.95 units on a scale
Standard Deviation 0.41
|
SECONDARY outcome
Timeframe: Baseline and 1 weekLimbal hyperemia assessed using scale 0-4, 0.5 steps, 0=No hyperemia, 4=Severe hyperemia.
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Limbal Hyperemia
Baseline
|
1.76 units on a scale
Standard Deviation 0.51
|
1.76 units on a scale
Standard Deviation 0.51
|
|
Limbal Hyperemia
1 week
|
1.68 units on a scale
Standard Deviation 0.42
|
1.71 units on a scale
Standard Deviation 0.37
|
SECONDARY outcome
Timeframe: 1 weekCorneal Staining: Dehydration Staining: Yes/No
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Corneal Dehydration Staining
Both eyes
|
3 participants
|
1 participants
|
|
Corneal Dehydration Staining
One eye
|
2 participants
|
2 participants
|
SECONDARY outcome
Timeframe: Baseline and 1 weekCorneal staining extent, grade as % of each zone: C - Central, N - Nasal, T - Temporal, S - Superior, I - Interior
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Corneal Staining (Extent)
Central - baseline
|
1.21 percentage of cornea
Standard Deviation 4.97
|
1.21 percentage of cornea
Standard Deviation 4.97
|
|
Corneal Staining (Extent)
Central - 1 week
|
0.64 percentage of cornea
Standard Deviation 1.73
|
0.75 percentage of cornea
Standard Deviation 4.97
|
|
Corneal Staining (Extent)
Nasal - baseline
|
4.76 percentage of cornea
Standard Deviation 9.10
|
4.76 percentage of cornea
Standard Deviation 9.10
|
|
Corneal Staining (Extent)
Nasal - 1 week
|
2.20 percentage of cornea
Standard Deviation 6.68
|
1.43 percentage of cornea
Standard Deviation 4.79
|
|
Corneal Staining (Extent)
Temporal - baseline
|
2.04 percentage of cornea
Standard Deviation 5.47
|
2.04 percentage of cornea
Standard Deviation 5.47
|
|
Corneal Staining (Extent)
Temporal - 1 week
|
1.38 percentage of cornea
Standard Deviation 4.05
|
1.04 percentage of cornea
Standard Deviation 2.92
|
|
Corneal Staining (Extent)
Superior - baseline
|
2.15 percentage of cornea
Standard Deviation 7.21
|
2.15 percentage of cornea
Standard Deviation 7.21
|
|
Corneal Staining (Extent)
Superior - 1 week
|
1.75 percentage of cornea
Standard Deviation 4.42
|
0.69 percentage of cornea
Standard Deviation 2.07
|
|
Corneal Staining (Extent)
Inferior - baseline
|
5.88 percentage of cornea
Standard Deviation 10.85
|
5.88 percentage of cornea
Standard Deviation 10.85
|
|
Corneal Staining (Extent)
Inferior - 1 week
|
6.48 percentage of cornea
Standard Deviation 11.52
|
5.01 percentage of cornea
Standard Deviation 9.23
|
SECONDARY outcome
Timeframe: Baseline and 1 week.Conjunctival Indentation 5 locations (central, nasal, temporal, superior, inferior): Scale 0-4, 0.5 steps; 0=None, 1=Trace, 2=Mild, 3=Moderate, 4=Severe
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Conjunctival Indentation
Nasal - baseline
|
0.01 units on a scale
Standard Deviation 0.11
|
0.01 units on a scale
Standard Deviation 0.11
|
|
Conjunctival Indentation
Nasal - 1 week
|
0.36 units on a scale
Standard Deviation 0.64
|
0.01 units on a scale
Standard Deviation 0.06
|
|
Conjunctival Indentation
Temporal - baseline
|
0.00 units on a scale
Standard Deviation 0.00
|
0.00 units on a scale
Standard Deviation 0.00
|
|
Conjunctival Indentation
Temporal - 1 week
|
0.39 units on a scale
Standard Deviation 0.68
|
0.02 units on a scale
Standard Deviation 0.10
|
|
Conjunctival Indentation
Superior - baseline
|
0.00 units on a scale
Standard Deviation 0.00
|
0.00 units on a scale
Standard Deviation 0.00
|
|
Conjunctival Indentation
Superior - 1 week
|
0.21 units on a scale
Standard Deviation 0.49
|
0.02 units on a scale
Standard Deviation 0.10
|
|
Conjunctival Indentation
Inferior - baseline
|
0.00 units on a scale
Standard Deviation 0.00
|
0.00 units on a scale
Standard Deviation 0.00
|
|
Conjunctival Indentation
Inferior - 1 week
|
0.34 units on a scale
Standard Deviation 0.67
|
0.03 units on a scale
Standard Deviation 0.15
|
SECONDARY outcome
Timeframe: Baseline and 1 weekConjunctival Staining 5 locations (central, nasal, temporal, superior, inferior): Scale 0-4; 0.5 steps, 0=None,1=Minimal diffuse punctuate, 2=Coalescent punctuate, 3=Confluent, 4=Deep confluent
Outcome measures
| Measure |
Silicone Hydrogel Lens (Test)
n=40 Participants
Participants were randomized to wear silicone hydrogel lens (test) for 1 week during the cross over study.
silicone hydrogel lens (test): contact lens
|
Enfilcon A Lens (Control)
n=40 Participants
Participants were randomized to wear enfilcon A lens (control) for 1 week during the cross over study.
enfilcon A lens (control): contact lens
|
|---|---|---|
|
Conjunctival Staining
Nasal - baseline
|
0.48 units on a scale
Standard Deviation 0.45
|
0.48 units on a scale
Standard Deviation 0.45
|
|
Conjunctival Staining
Nasal - 1 week
|
0.67 units on a scale
Standard Deviation 0.58
|
0.46 units on a scale
Standard Deviation 0.40
|
|
Conjunctival Staining
Temporal - baseline
|
0.47 units on a scale
Standard Deviation 0.49
|
0.47 units on a scale
Standard Deviation 0.49
|
|
Conjunctival Staining
Temporal - 1 week
|
0.72 units on a scale
Standard Deviation 0.63
|
0.55 units on a scale
Standard Deviation 0.43
|
|
Conjunctival Staining
Superior - baseline
|
0.12 units on a scale
Standard Deviation 0.29
|
0.12 units on a scale
Standard Deviation 0.29
|
|
Conjunctival Staining
Superior - 1 week
|
0.25 units on a scale
Standard Deviation 0.38
|
0.14 units on a scale
Standard Deviation 0.26
|
|
Conjunctival Staining
Inferior - baseline
|
0.23 units on a scale
Standard Deviation 0.38
|
0.23 units on a scale
Standard Deviation 0.38
|
|
Conjunctival Staining
Inferior - 1 week
|
0.49 units on a scale
Standard Deviation 0.52
|
0.32 units on a scale
Standard Deviation 0.37
|
Adverse Events
Silicone Hydrogel Lens (Test)
Enfilcon A Lens (Control)
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place
Restriction type: OTHER