Daily Wear Corneal Infiltrative Event Study

Myopia Clinical Trial

— DWCIE  

Official title:

Infiltrative Events During Silicone Hydrogel Daily Contact Lens (Daily Wear Corneal Infiltrative Event (DWCIE) Study)

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00937105
• Other study ID #: 001
• Status: Completed
• Phase: Phase 4
• First received: July 9, 2009
• Last updated: January 27, 2014
• Start date: November 2009
• Est. completion date: February 2012

Study information

• Verified date: January 2014
• Source: University Hospital Case Medical Center
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Institutional Review Board
• Study type: Interventional

Clinical Trial 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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 218
• Est. completion date: February 2012
• Est. primary completion date: February 2012
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: 15 Years and older

Eligibility

Inclusion Criteria:

1. The patient must be at least 15 years old.

2. The patient must be free of any anterior segment disorders.

3. 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.

4. The patient must be correctable to 20/25 or better with spectacles.

5. Flat and steep corneal curvatures from Simulated Keratometry readings must be between 39.00 and 48.00 D.

6. Can be successfully fit with lotrafilcon A lenses at the enrollment visit.

Exclusion Criteria

1. The patient has worn rigid gas permeable lenses within the last 30 days or polymethylmethacrylate lenses within the last 3 months.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

8. The patient is pregnant.

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Corneal Infiltrative Events
• Hyperopia
• Myopia

Intervention

Device:
• lotrafilcon A contact lenses
FDA approved soft contact lenses
• Renu Multiplus

• Clear Care

Locations

Country	Name	City	State
United States	Department of Ophthalmology University Hospitals Case Medical Center	Cleveland	Ohio

Sponsors (2)

Lead Sponsor	Collaborator
University Hospital Case Medical Center	Alcon Research

Country where clinical trial is conducted

United States, 

References & Publications (1)

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. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	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	Yes
Secondary	Number of Participants With CIE Stratified by Microbial Bioburden on Lenses	Microbial bioburden on lenses was determined with predetermined cutoffs to identify substantial bioburden as high levels of normal flora or presence of pathogenic abnormal flora on lenses	up to 1 year	Yes
Secondary	Number of Participants With CIE Based Stratified by Presence or Absence of Corneal Staining Induced by Solution Use.	Presumed solution induced corneal staining was defined as diffuse punctate fluorescein staining of at least 15% surface area in at least 4 of 5 zones	up to 1 year	Yes
Secondary	Number of Participants With CIE Stratified by Microbial Bioburden on Lens Cases	Microbial bioburden within lens storage cases was determined with predetermined cutoffs to identify substantial bioburden as high levels of normal flora or presence of pathogenic abnormal flora	up to 1 year	Yes
Secondary	Number of Participants With CIE Stratified by Overall Microbial Bioburden on Lid Margins	Microbial bioburden on lid margins was determined with predetermined cutoffs to identify substantial bioburden as high levels of normal flora or presence of pathogenic abnormal flora on lids	up to 1 year	Yes
Secondary	Number of Participants With CIE Stratified by CNS Microbial Bioburden on Lid Margins	Microbial bioburden with coagulase negative staphylococci (CNS) on lid margins was determined with predetermined cutoffs to identify substantial bioburden as high levels of normal CNS flora on lids	up to 1 year	Yes