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CompletedNCT05741450Updated Jan 10, 2024Results posted

A Clinical Comparison of Two Soft Contact Lenses

An interventional study of Lens 1 (monthly replacement) and Lens 2 (daily disposable) in Myopia and Hyperopia, sponsored by CooperVision, Inc.. Completed at 1 site in United Kingdom. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-01-10.

Sponsored by CooperVision, Inc. · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
45
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

The study objective was to gather short-term clinical performance data for two soft contact lenses.

Read the detailed description

The aim of this subject-masked, non-randomized, controlled non-dispensing study was to evaluate the short-term clinical performance of a monthly sphere contact lens when compared to a daily disposable contact lens after 15 minutes of daily wear each.

02

Conditions studied

  • Myopia
  • Hyperopia

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03

In context

Hyperopia

140 studies on the registry are indexed under Hyperopia; 18 are open to participants now.

This study's enrollment of 45 is below the median of 60 across 112 interventional studies indexed under Hyperopia.

Browse Hyperopia studies →

Lead sponsor

CooperVision, Inc. is the lead sponsor of 37 studies on the registry; none are open to participants now.

Of its 31 completed or terminated interventional studies of FDA-regulated products, 29 (94%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • They are of legal age (18) and capacity to volunteer.
  • They understand their rights as a research subject and are willing and able to sign a Statement of Informed Consent.
  • They are willing and able to follow the protocol.
  • They currently wear soft contact lenses, or have done so within the past two years.
  • They are expected to be able to be fitted with the study lenses within the power range available.

Exclusion criteria

Exclusion Criteria:

  • They have an ocular disorder which would normally contra-indicate contact lens wear.
  • They have a systemic disorder which would normally contra-indicate contact lens wear.
  • They are using any topical medication such as eye drops or ointment.
  • They are aphakic.
  • They have had corneal refractive surgery.
  • They have any corneal distortion resulting from previous hard or rigid lens wear or have keratoconus.
  • They are pregnant or lactating.
  • They have an eye or health condition including an immunosuppressive or infectious disease which would, in the opinion of the investigator, contraindicate contact lens wear or pose a risk to study personnel; or a history of anaphylaxis or severe allergic reaction.
  • They have taken part in any contact lens or care system clinical research within two weeks prior to starting this study.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Crossover assignment
Masking
Single (Participant)
Enrollment
45 participants (actual)

Study arms

  • Experimental
    Lens 1

    All participants wore Lens 1 for 15 minutes (Period 1)

    Device: Lens 1 (monthly replacement)

  • Experimental
    Lens 2

    All participants wore Lens 2 for 15 minutes (Period 2)

    Device: Lens 2 (daily disposable)

Interventions

  • DeviceLens 1 (monthly replacement)

    Monthly replacement spherical silicone hydrogel contact lens for 15 minutes

  • DeviceLens 2 (daily disposable)

    Daily disposable spherical silicone hydrogel contact lens for 15 minutes

06

What researchers measure

Primary outcomes

  1. Subjective Overall Score

    Subjective overall score was assessed using 0-100 visual analogue scale, where 0=Extremely poor, cannot use lenses and 100=Excellent, highly impressed with these lenses overall

    Time frame: 15 minutes

Secondary outcomes

  1. Subjective Comfort

    Subjective comfort score was assessed using 0-100 visual analogue scale, where 0=Causes pain, cannot be tolerated and 100=Excellent, cannot be felt

    Time frame: 15 minutes

  2. Subjective Vision

    Subjective vision score was assessed using a 0-100 visual analogue scale, where 0=Unacceptable, lens cannot be worn and 100=Excellent, unaware of any visual loss

    Time frame: 15 minutes

07

Results

Posted Jan 10, 2024

Participant flow

Period 1: Lens 1, 15 Minutes
Participant flow — Period 1: Lens 1, 15 Minutes
MilestoneLens 1 (Monthly Replacement)Lens 2 (Daily Disposable)
Started450
Completed450
Not completed00
Period 2: Lens 2, 15 Minutes
Participant flow — Period 2: Lens 2, 15 Minutes
MilestoneLens 1 (Monthly Replacement)Lens 2 (Daily Disposable)
Started045
Completed045
Not completed00

Outcome measures

PrimarySubjective Overall Score

Subjective overall score was assessed using 0-100 visual analogue scale, where 0=Extremely poor, cannot use lenses and 100=Excellent, highly impressed with these lenses overall

Time frame:
15 minutes
Reported as:
Mean · score on a scale
Subjective Overall Score
score on a scaleLens 1Lens 2
Subjective Overall Score84.7 ± 15.582.5 ± 14.6
SecondarySubjective Comfort

Subjective comfort score was assessed using 0-100 visual analogue scale, where 0=Causes pain, cannot be tolerated and 100=Excellent, cannot be felt

Time frame:
15 minutes
Reported as:
Mean · score on a scale
Subjective Comfort
score on a scaleLens 1Lens 2
Subjective Comfort86.4 ± 16.486.6 ± 13.5
SecondarySubjective Vision

Subjective vision score was assessed using a 0-100 visual analogue scale, where 0=Unacceptable, lens cannot be worn and 100=Excellent, unaware of any visual loss

Time frame:
15 minutes
Reported as:
Mean · score on a scale
Subjective Vision
score on a scaleLens 1Lens 2
Subjective Vision85.8 ± 14.982.7 ± 15.9

Adverse events

Collected over The duration of the clinical trial, approximately 1.5 hours. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Lens 10/45 (0%)0/45 (0%)0/45 (0%)
Lens 20/45 (0%)0/45 (0%)0/45 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Overall Study
Female32.4 ± 11.9
Male37.3 ± 15.0
Sex: Female, Male
Sex: Female, Male(Participants)Overall Study
Female28
Male17
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Overall Study
08

Study locations

1 site
  • Eurolens Research
    Manchester, United Kingdom
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Nov 4, 2022

Documents are hosted by the registry — open the source record to download them.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 10, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05741450
Lead sponsor
CooperVision, Inc.
Responsible party
Sponsor
First posted
Feb 23, 2023
Start date
Nov 24, 2022
Primary completion
Dec 5, 2022
Completion
Dec 5, 2022
Results posted
Jan 10, 2024
Last update
Jan 10, 2024

Study contacts

Philip Morgan, PhD, MCOptom
principal investigator · Eurolens Research

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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