Comparing Biofinity Toric Multifocal to Ultra Multifocal for Astigmatism
1 other identifier
interventional
64
2 countries
7
Brief Summary
The objective of the study was to compare the handling and performance of Biofinity Toric Multifocal to Ultra Multifocal for Astigmatism.
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 Aug 2020
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
May 22, 2020
CompletedFirst Posted
Study publicly available on registry
May 27, 2020
CompletedStudy Start
First participant enrolled
August 6, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 29, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
July 29, 2021
CompletedResults Posted
Study results publicly available
March 3, 2022
CompletedMarch 3, 2022
February 1, 2022
12 months
May 22, 2020
January 20, 2022
February 9, 2022
Conditions
Outcome Measures
Primary Outcomes (1)
Ease of Lens Handling at Insertion
Subjective at-home ratings for ease of lens handling for insertion, using a 0-10 scale (0-Very difficult, 10 - Very easy).
Day 28
Study Arms (2)
comfilcon A then samfilcon A
EXPERIMENTALSubjects were randomized to wear comfilcon A for one month then Samfilcon A for one month in this randomized, bilateral cross-over study.
samfilcon A then comfilcon A
ACTIVE COMPARATORSubjects were randomized to wear samfilcon A for one month then comfilcon A for one month in this randomized, bilateral cross-over study.
Interventions
Subjects will be randomized to wear comfilcon A for one month.
Subjects will be randomized to wear samfilcon A for one month.
Eligibility Criteria
You may qualify if:
- Is at least 42 years of age and has full legal capacity to volunteer;
- Has read and signed an information consent letter;
- Self reports having a full eye examination in the previous two years;
- Anticipates being able to wear the study lenses for at least 8 hours a day, 5 days a week;
- Is willing and able to follow instructions and maintain the appointment schedule;
- Habitually wears soft contact lens for the past 3 months minimum;
- Has refractive astigmatism of at least -0.75DC;
- Is presbyopic and requires a reading addition of at least +0.75D;
- Can be fit and achieve binocular distance vision of at least 20/30 Snellen (or +0.20 logMAR) which participants also deem to be 'acceptable', with the available study lens parameters (sphere +4 to -6; cylinder -0.75 to -1.75DC; near addition +0.75 to +2.50).
You may not qualify if:
- Is participating in any concurrent clinical or research study;
- Habitually wears one of the study contact lenses;
- Has any known active\* ocular disease and/or infection;
- Has a systemic condition that in the opinion of the investigator may affect a study outcome variable;
- Is using any systemic or topical medications that in the opinion of the investigator may affect contact lens wear or a study outcome variable;
- Has known sensitivity to the diagnostic sodium fluorescein and/or the care product Opti-Free PureMoist being used in the study;
- Self-reports as pregnant, lactating or planning a pregnancy at the time of enrolment;
- Has undergone refractive error surgery. \* For the purposes of this study, active ocular disease is defined as infection or inflammation which requires therapeutic treatment. Mild (i.e. not considered clinically relevant) lid abnormalities (blepharitis, meibomian gland dysfunction, papillae), corneal and conjunctival staining and dry eye are not considered active ocular disease. Neovascularization and corneal scars are the result of previous hypoxia, infection or inflammation and are therefore not active.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (7)
Athens Eye care
Athens, Ohio, 45701, United States
Nittany Eye Associates
State College, Pennsylvania, 16801, United States
Glasses Half Full
Edmonton, Alberta, T5N1S5, Canada
Oakley Eyecare
Winnipeg, Manitoba, R2C 3B4, Canada
Dolman Eyecare Centre
New Hamburg, Ontario, N3A 1K2, Canada
Spadina Optometry
Toronto, Ontario, M5V 2K8, Canada
Lyndon Jones
Waterloo, Ontorio, N2L 3G1, Canada
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Jose Vega, OD, MSc, FAAO
- Organization
- CooperVision, Inc
Study Officials
- PRINCIPAL INVESTIGATOR
Lyndon Jones, PhD FCOptom
University of Waterloo
- PRINCIPAL INVESTIGATOR
Fiona Soong
Eyes on Sheppard Clinic
- PRINCIPAL INVESTIGATOR
Adam Keech
Oakley Eyecare
- PRINCIPAL INVESTIGATOR
Howard Dolman
Dolman Eyecare Centre
- PRINCIPAL INVESTIGATOR
Kristin Heeney
Spadina Optometry
- PRINCIPAL INVESTIGATOR
Michael Kreuzer
Glasses Half Full
- PRINCIPAL INVESTIGATOR
Shane Foster
Athens Eye Care
- PRINCIPAL INVESTIGATOR
Michael Cymbor
Nittany Eye Associates
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 22, 2020
First Posted
May 27, 2020
Study Start
August 6, 2020
Primary Completion
July 29, 2021
Study Completion
July 29, 2021
Last Updated
March 3, 2022
Results First Posted
March 3, 2022
Record last verified: 2022-02