Daily Wear Corneal Infiltrative Event Study
DWCIE
Infiltrative Events During Silicone Hydrogel Daily Contact Lens (Daily Wear Corneal Infiltrative Event (DWCIE) Study)
1 other identifier
interventional
218
1 country
1
Brief Summary
This DWCIE Study is a prospective cohort study of patients fit to the FDA approved and marketed lotrafilcon A (Ciba Vision, Air Optix Night \& Day Aqua) soft contact lenses for daily wear (DW) with monthly disposal. 218 healthy myopic (nearsighted) or hyperopic (farsighted) patients with minimal or no astigmatism and no contraindications to DW lens use will be followed for 1 year. The primary outcome is the risk of development of a corneal inflammatory event (CIE) as defined by slit lamp findings and patient symptoms. The main exposure of interest is microbial contamination of study lenses.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Nov 2009
Typical duration for phase_4
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 9, 2009
CompletedFirst Posted
Study publicly available on registry
July 10, 2009
CompletedStudy Start
First participant enrolled
November 1, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2012
CompletedResults Posted
Study results publicly available
March 10, 2014
CompletedMarch 10, 2014
January 1, 2014
2.3 years
July 9, 2009
July 1, 2013
January 27, 2014
Conditions
Outcome Measures
Primary Outcomes (1)
Number of Participants Developing a Corneal Inflammatory Event (CIE)
Raw number of participants in each solution arm developing CIE over 12 month follow-up period
up to 1 year
Secondary Outcomes (5)
Number of Participants With CIE Stratified by Microbial Bioburden on Lenses
up to 1 year
Number of Participants With CIE Based Stratified by Presence or Absence of Corneal Staining Induced by Solution Use.
up to 1 year
Number of Participants With CIE Stratified by Microbial Bioburden on Lens Cases
up to 1 year
Number of Participants With CIE Stratified by Overall Microbial Bioburden on Lid Margins
up to 1 year
Number of Participants With CIE Stratified by CNS Microbial Bioburden on Lid Margins
up to 1 year
Study Arms (2)
ReNu Multiplus and lotrafilcon A lenses
ACTIVE COMPARATORReNu Multiplus contact lens care solution
Clear Care solution and lotrafilcon A lenses
ACTIVE COMPARATORClear Care Contact Lens Care Solution
Interventions
FDA approved soft contact lenses
Eligibility Criteria
You may qualify if:
- The patient must be at least 15 years old.
- The patient must be free of any anterior segment disorders.
- The patient must have a spectacle corrected spherical refractive error between +5.50 D and -11.00 D with less than or equal to 1.00 D refractive cylinder.
- The patient must be correctable to 20/25 or better with spectacles.
- Flat and steep corneal curvatures from Simulated Keratometry readings must be between 39.00 and 48.00 D.
- Can be successfully fit with lotrafilcon A lenses at the enrollment visit.
You may not qualify if:
- The patient has worn rigid gas permeable lenses within the last 30 days or polymethylmethacrylate lenses within the last 3 months.
- The patient must not be a current successful daily wear user of lotrafilcon A lenses. They may have tried lotrafilcon A lenses in the past, but must not have successfully worn these lenses for daily wear within the last 12 months.
- The patient has an autoimmune disease (except for Hashimoto's Thyroiditis), immunocompromising disease, connective tissue disease, atopic dermatitis, insulin dependent diabetes, or any other systemic disease that in the investigator's opinion will affect ocular health.
- The patient is taking chronic systemic medications such as corticosteroids, antimetabolites, or non-steroidal anti-inflammatory agents or any other medication that in the investigator's opinion will affect ocular physiology or study participation.
- The patient has any ocular disease or condition such as aphakia, corneal dystrophies, corneal edema, external ocular infection, iritis, or had any anterior segment surgery.
- The patient is taking any ocular medications. If a patient was previously taking any ocular medications, the medications must have been discontinued at least 2 weeks prior to enrollment.
- The patient must have less than or equal to grade 2 on any of the slit lamp observations of: upper tarsal papilla, corneal staining, corneal neovascularization, conjunctival injection, and lid erythema or scales. Slit lamp findings higher than grade 2 bias the patient toward an adverse event and it may be difficult to detect true change related to contact lens use.
- The patient is pregnant.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University Hospitals Cleveland Medical Centerlead
- Alcon Researchcollaborator
Study Sites (1)
Department of Ophthalmology University Hospitals Case Medical Center
Cleveland, Ohio, 44106, United States
Related Publications (2)
Szczotka-Flynn L, Jiang Y, Raghupathy S, Bielefeld RA, Garvey MT, Jacobs MR, Kern J, Debanne SM. Corneal inflammatory events with daily silicone hydrogel lens wear. Optom Vis Sci. 2014 Jan;91(1):3-12. doi: 10.1097/OPX.0000000000000105.
PMID: 24240354RESULTJiang Y, Jacobs M, Bajaksouzian S, Foster AN, Debanne SM, Bielefeld R, Garvey M, Raghupathy S, Kern J, Szczotka-Flynn LB. Risk factors for microbial bioburden during daily wear of silicone hydrogel contact lenses. Eye Contact Lens. 2014 May;40(3):148-56. doi: 10.1097/ICL.0000000000000026.
PMID: 24756119DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Limitations and Caveats
Mostly asymptomatic CIE events occurred which limited the ability to retrieve the lens worn (for culture) precisely at the time of CIE development; this may have hindered our ability to capture bioburden at the time of the adverse event.
Results Point of Contact
- Title
- Loretta Szczotka-Flynn OD, PhD
- Organization
- University Hospitals Eye Institute
Study Officials
- PRINCIPAL INVESTIGATOR
Loretta Szczotka-Flynn, OD, PhD
University Hospitals Cleveland Medical Center
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- LTE60
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- OD, PhD
Study Record Dates
First Submitted
July 9, 2009
First Posted
July 10, 2009
Study Start
November 1, 2009
Primary Completion
February 1, 2012
Study Completion
February 1, 2012
Last Updated
March 10, 2014
Results First Posted
March 10, 2014
Record last verified: 2014-01