Trial Outcomes & Findings for Controlling Myopia Progression With Soft Contact Lenses (NCT NCT01787760)

NCT ID: NCT01787760

Last Updated: 2018-06-19

Results Overview

Axial Length was measured with the IOLMaster at baseline, and then every 6 months throughout the course of the study. Five measurements were collected for each eye at each visit and the average of the 5 measurements were used for the analysis. Higher values of axial elongation indicate worse vision.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

221 participants

Primary outcome timeframe

Baseline and every 6 months post-baseline up to 3 years

Results posted on

2018-06-19

Participant Flow

Of those 221 screened subjects, 56 were ineligible to participate in the study and 13 were eligible but not randomized to the study lens groups.

Participant milestones

Participant milestones
Measure
Test Soft Contact Lens B
Lenses will be worn in a daily disposable modality
Test Soft Contact Lens C
Lenses will be worn in a daily disposable modality
Spectacle Lenses
Control spectacle lenses worn daily.
Overall Study
STARTED
51
50
51
Overall Study
COMPLETED
25
34
46
Overall Study
NOT COMPLETED
26
16
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Test Soft Contact Lens B
Lenses will be worn in a daily disposable modality
Test Soft Contact Lens C
Lenses will be worn in a daily disposable modality
Spectacle Lenses
Control spectacle lenses worn daily.
Overall Study
Anisometropia > -1.00D in spherical equi
1
0
0
Overall Study
Decompensated on left exotropia
0
0
1
Overall Study
Dryness
0
1
0
Overall Study
Relocation
1
1
0
Overall Study
Lens discomfort
3
0
0
Overall Study
Lens handling difficulty
1
2
0
Overall Study
Protocol Violation
6
0
1
Overall Study
Withdrawal by Subject
5
1
2
Overall Study
Lost to Follow-up
1
0
1
Overall Study
Stroke
1
0
0
Overall Study
Unsatisfactory lens fitting performance
3
6
0
Overall Study
Unsatisfactory physiological response
2
4
0
Overall Study
Unsatisfactory visual response
1
1
0
Overall Study
Near vision blur
1
0
0

Baseline Characteristics

Controlling Myopia Progression With Soft Contact Lenses

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Test Soft Contact Lens B
n=51 Participants
Lenses will be worn in a daily disposable modality
Test Soft Contact Lens C
n=50 Participants
Lenses will be worn in a daily disposable modality
Spectacle Lenses
n=51 Participants
Control spectacle lenses worn daily.
Total
n=152 Participants
Total of all reporting groups
Age, Categorical
<=18 years
51 Participants
n=5 Participants
50 Participants
n=7 Participants
51 Participants
n=5 Participants
152 Participants
n=4 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Age, Continuous
9.5 years
STANDARD_DEVIATION 1.1 • n=5 Participants
9.6 years
STANDARD_DEVIATION 1.1 • n=7 Participants
9.5 years
STANDARD_DEVIATION 1.1 • n=5 Participants
9.5 years
STANDARD_DEVIATION 1.1 • n=4 Participants
Sex: Female, Male
Female
18 Participants
n=5 Participants
31 Participants
n=7 Participants
23 Participants
n=5 Participants
72 Participants
n=4 Participants
Sex: Female, Male
Male
33 Participants
n=5 Participants
19 Participants
n=7 Participants
28 Participants
n=5 Participants
80 Participants
n=4 Participants
Region of Enrollment
United States · Hong Kong
51 Participants
n=5 Participants
50 Participants
n=7 Participants
51 Participants
n=5 Participants
152 Participants
n=4 Participants

PRIMARY outcome

Timeframe: Baseline and every 6 months post-baseline up to 3 years

Population: Analysis was conducted on all randomized subjects who have at least one data point.

Axial Length was measured with the IOLMaster at baseline, and then every 6 months throughout the course of the study. Five measurements were collected for each eye at each visit and the average of the 5 measurements were used for the analysis. Higher values of axial elongation indicate worse vision.

Outcome measures

Outcome measures
Measure
Spectacle Lenses
n=96 eyes
Control spectacle lenses worn daily.
Test Soft Contact Lens B
n=70 eyes
Lenses will be worn in a daily disposable modality.
Test Soft Contact Lens C
n=74 eyes
Lenses will be worn in a daily disposable modality.
Axial Length (Axial Elongation)
Change from baseline 6 months
0.158 millimeter (mm)
Standard Deviation 0.0981
0.144 millimeter (mm)
Standard Deviation 0.0834
0.121 millimeter (mm)
Standard Deviation 0.0749
Axial Length (Axial Elongation)
Change from baseline 12 months
0.242 millimeter (mm)
Standard Deviation 0.1448
0.236 millimeter (mm)
Standard Deviation 0.1267
0.222 millimeter (mm)
Standard Deviation 0.1288
Axial Length (Axial Elongation)
Change from baseline 18 months; N=92, N=54, N=72
0.348 millimeter (mm)
Standard Deviation 0.2129
0.355 millimeter (mm)
Standard Deviation 0.1837
0.344 millimeter (mm)
Standard Deviation 0.1676
Axial Length (Axial Elongation)
Change from baseline 24 months; N=92, N=54, N=72
0.455 millimeter (mm)
Standard Deviation 0.2520
0.409 millimeter (mm)
Standard Deviation 0.2247
0.445 millimeter (mm)
Standard Deviation 0.2444
Axial Length (Axial Elongation)
Change from baseline 30 months
0.565 millimeter (mm)
Standard Deviation 0.2941
0.512 millimeter (mm)
Standard Deviation 0.2634
0.511 millimeter (mm)
Standard Deviation 0.2564
Axial Length (Axial Elongation)
Change from baseline 36 months
0.640 millimeter (mm)
Standard Deviation 0.3199
0.634 millimeter (mm)
Standard Deviation 0.3249
0.512 millimeter (mm)
Standard Deviation 0.3072

PRIMARY outcome

Timeframe: Baseline and every 6 months post-baseline up to 3 years

Population: Analysis was conducted on all randomized subjects who have at least one data point.

Spherical Equivalent Refraction was computed from the sphero-cylindrical refraction measured with an open-field auto refractor. The median of 3 repeated measurements, each of which was the average of 3 consecutive readings, was used for the analysis. Higher values of spherical refraction indicate progression in Myopia.

Outcome measures

Outcome measures
Measure
Spectacle Lenses
n=96 eyes
Control spectacle lenses worn daily.
Test Soft Contact Lens B
n=70 eyes
Lenses will be worn in a daily disposable modality.
Test Soft Contact Lens C
n=72 eyes
Lenses will be worn in a daily disposable modality.
Spherical Equivalent Refraction
Change from baseline 6 months
-0.238 diopter (D)
Standard Deviation 0.3443
-0.327 diopter (D)
Standard Deviation 0.3038
-0.230 diopter (D)
Standard Deviation 0.3436
Spherical Equivalent Refraction
Change from baseline 12 months
-0.417 diopter (D)
Standard Deviation 0.4557
-0.456 diopter (D)
Standard Deviation 0.3733
-0.429 diopter (D)
Standard Deviation 0.4199
Spherical Equivalent Refraction
Change from baseline 18 months
-0.562 diopter (D)
Standard Deviation 0.5841
-0.692 diopter (D)
Standard Deviation 0.3965
-0.720 diopter (D)
Standard Deviation 0.4988
Spherical Equivalent Refraction
Change from baseline 24 months
-0.776 diopter (D)
Standard Deviation 0.6185
-0.781 diopter (D)
Standard Deviation 0.4447
-0.861 diopter (D)
Standard Deviation 0.5504
Spherical Equivalent Refraction
Change from baseline 30 months
-0.966 diopter (D)
Standard Deviation 0.7592
-1.000 diopter (D)
Standard Deviation 0.5485
-1.003 diopter (D)
Standard Deviation 0.6829
Spherical Equivalent Refraction
Change from baseline 36 months
-1.073 diopter (D)
Standard Deviation 0.9922
-1.266 diopter (D)
Standard Deviation 0.3193
-0.824 diopter (D)
Standard Deviation 0.8244

Adverse Events

Spectacle Lenses

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

Test Soft Contact Lens B

Serious events: 0 serious events
Other events: 7 other events
Deaths: 0 deaths

Test Soft Contact Lens C

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

Not Randomized

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Spectacle Lenses
n=51 participants at risk
Control spectacle lenses worn daily.
Test Soft Contact Lens B
n=51 participants at risk
Lenses will be worn in a daily disposable modality.
Test Soft Contact Lens C
n=50 participants at risk
Lenses will be worn in a daily disposable modality.
Not Randomized
n=13 participants at risk
Subjects who met the all study eligible criteria but did not randomize to the study arm.
Eye disorders
Slit-lamp finding
0.00%
0/51
13.7%
7/51 • Number of events 10
8.0%
4/50 • Number of events 5
0.00%
0/13

Additional Information

XU CHENG, PRINCIPAL CLINICAL SCIENTIST

Vistakon, USA

Phone: 1 904 443-1245

Results disclosure agreements

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