Daily Wear Corneal Infiltrative Event Study (DWCIE)
Infiltrative Events During Silicone Hydrogel Daily Contact Lens (Daily Wear Corneal Infiltrative Event (DWCIE) Study)
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 4
Kontakter og lokationer
Studiesteder
-
-
Ohio
-
Cleveland, Ohio, Forenede Stater, 44106
- Department of Ophthalmology University Hospitals Case Medical Center
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- 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.
Exclusion Criteria
- 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.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Aktiv komparator: ReNu Multiplus and lotrafilcon A lenses
ReNu Multiplus contact lens care solution
|
FDA approved soft contact lenses
Andre navne:
|
|
Aktiv komparator: Clear Care solution and lotrafilcon A lenses
Clear Care Contact Lens Care Solution
|
FDA approved soft contact lenses
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Number of Participants Developing a Corneal Inflammatory Event (CIE)
Tidsramme: up to 1 year
|
Raw number of participants in each solution arm developing CIE over 12 month follow-up period
|
up to 1 year
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Number of Participants With CIE Stratified by Microbial Bioburden on Lenses
Tidsramme: up to 1 year
|
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
|
|
Number of Participants With CIE Based Stratified by Presence or Absence of Corneal Staining Induced by Solution Use.
Tidsramme: up to 1 year
|
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
|
|
Number of Participants With CIE Stratified by Microbial Bioburden on Lens Cases
Tidsramme: up to 1 year
|
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
|
|
Number of Participants With CIE Stratified by Overall Microbial Bioburden on Lid Margins
Tidsramme: up to 1 year
|
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
|
|
Number of Participants With CIE Stratified by CNS Microbial Bioburden on Lid Margins
Tidsramme: up to 1 year
|
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
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Loretta Szczotka-Flynn, OD, PhD, University Hospitals Cleveland Medical Center
Publikationer og nyttige links
Generelle publikationer
- 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.
- Jiang 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.
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 001 (Marta Eliza Miller Foundation)
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