Multi-Centre Clinical Evaluation Of Two Daily Disposable Contact Lenses
1 other identifier
interventional
100
1 country
7
Brief Summary
The purpose of this study is to compare the subjective performance for handling of two daily disposable contact lenses, stenfilcon A and etafilcon A.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Oct 2012
Shorter than P25 for not_applicable
7 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 21, 2012
CompletedStudy Start
First participant enrolled
October 1, 2012
CompletedFirst Posted
Study publicly available on registry
October 16, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2013
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2013
CompletedResults Posted
Study results publicly available
August 27, 2014
CompletedAugust 3, 2020
July 1, 2020
3 months
September 21, 2012
April 1, 2014
July 19, 2020
Conditions
Outcome Measures
Primary Outcomes (2)
Handling
Participant's subjective rating for lens handling of Pair #1 surveyed at 2 weeks (+3) days after baseline visit and Pair #2 surveyed at 4 weeks (+3) days after baseline visit. Each pair worn for two weeks daily disposable wear basis (at least 40 hours per week). Lenses worn minimum 2 hours prior to visit. Rated by questionnaires (0-10, 10= very easy).
two weeks and four weeks from baseline visit
Satisfaction With Handling
Participant's subjective rating for overall satisfaction of lens handling of Pair #1 surveyed at 2 weeks (+3) days after baseline visit and Pair #2 surveyed at 4 weeks (+3) days after baseline visit. Each pair worn for two weeks daily disposable wear basis (at least 40 hours per week). Lenses worn minimum 2 hours prior to visit. Rated by questionnaires (5 point Likert scale - Completely Dissatisfied, Somewhat Dissatisfied, Neither, Somewhat Satisfied, Completely Satisfied).
two weeks and four weeks from baseline visit
Secondary Outcomes (4)
Comfort
two weeks and four weeks from baseline visit
Dryness
two weeks and four weeks from baseline visit
Satisfaction With Dryness
two weeks and four weeks from baseline visit
Satisfaction With Comfort
two weeks and four weeks from baseline visit
Study Arms (2)
stenfilcon A
EXPERIMENTALParticipants wear a first pair of lenses for two weeks and then crossover and wear an alternate second pair of lenses for two weeks.
etafilcon A
ACTIVE COMPARATORParticipants wear a first pair of lenses for two weeks and then crossover and wear an alternate second pair of lenses for two weeks.
Interventions
Participants wear a first pair of lenses for two weeks and then crossover and wear an alternate second pair of lenses for two weeks.
Participants wear a first pair of lenses for two weeks and then crossover and wear an alternate second pair of lenses for two weeks.
Eligibility Criteria
You may qualify if:
- Be between 16 and 45 years of age (inclusive)
- Adapted soft contact lens (CL) wearers (i.e. \> 1 month)
- Spherical distance CL prescription between -1.00 and -6.00D (inclusive)
- Spectacle cylinder ≤0.75D in the least astigmatic eye, ≤1.00D in the other.
- Correctable to 6/9 (20/30) in both eyes
- Have the use of a mobile phone to send and receive text messages throughout the day for the duration of the study.
- Have read, understood and signed the informed consent
- Willing to comply with the wear schedule (at least 40 hours per week)
- Willing to comply with the study visit schedule
You may not qualify if:
- Any active corneal infection, injury or inflammation
- Systemic or ocular allergies, which might interfere with CL wear
- Systemic disease, which might interfere with CL wear
- Ocular disease, which might interfere with CL wear
- Strabismus, amblyopia
- Subjects who have undergone corneal refractive surgery and any anterior segment surgery
- Subjects with keratoconus or other severe corneal irregularity contraindicating lens wear
- Pregnant or lactating
- Use of systemic/topical medication contraindicating CL wear
- Use of gas permeable contact lenses within the last month
- Employees of the investigational site or immediate family members of Investigators
- Participation in any concurrent clinical trial or in the last 30 days
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (7)
Keith Tempany Opticians
Broadstone, Dorset, MH18, United Kingdom
Cameron-Davies Optometrists
Southsea, Hampshire, PO5 2AT, United Kingdom
Cameron-Davies Optometrists
Portchester, Hants, PO16 9UN, United Kingdom
Leightons Opticians
St Albans, Hertfordshire, AL1 3LH, United Kingdom
David Gould Opticians
Rawtenstall, Lancashire, BB4 7QN, United Kingdom
Vision Express Optical Lab
Hendon, London, NW4 3FB, United Kingdom
S.H. Harrold
Uxbridge, London, UB8 1JX, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Graeme Young
- Organization
- Visioncare Research Ltd.
Study Officials
- STUDY DIRECTOR
Graeme Young
Visioncare Research Ltd.
- STUDY DIRECTOR
Ruth Craven
Visioncare Research Ltd.
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- OTHER
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 21, 2012
First Posted
October 16, 2012
Study Start
October 1, 2012
Primary Completion
January 1, 2013
Study Completion
March 1, 2013
Last Updated
August 3, 2020
Results First Posted
August 27, 2014
Record last verified: 2020-07