Clinical Performance of Existing Wearers of Avaira Sphere Following a Refit With Clariti Elite Sphere
Clinical Performance of Existing Wearers of Avaira Sphere (Enfilcon A) Following a Refit With Clariti Elite Sphere (Somofilcon A) Lenses for 4 Weeks
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Studientyp
Einschreibung (Tatsächlich)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
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Valencia, Spanien, 46100
- Optometry Research Group (GIO) Optics Department, University of Valencia
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
- Is between 18 and 40 years of age (inclusive)
- Has had a self-reported visual exam in the last two years
- Is an adapted Avaira sphere contact lens (CL) wearer (at least 1 week in Avaira sphere)
- Has a contact lens spherical prescription between -1.00 to - 6.00 (inclusive)
- Has a spectacle cylinder up to 0.75D in each eye.
- Can achieve best corrected spectacle distance visual acuity of 20/25 (0.10 logMAR) or better in each eye.
- Can achieve a distance visual acuity of 20/30 (0.18 logMAR) or better in each eye with the study contact lenses.
- Has clear corneas and no active ocular disease
- Has read, understood and signed the information consent letter.
- Patient contact lens refraction should fit within the available parameters of the study lenses.
- Is willing to comply with the wear schedule (at least 5 days per week, > 8 hours/day assuming there are no contraindications for doing so).
- Is willing to comply with the visit schedule
Exclusion Criteria:
- Is not a habitual wearer of Avaira sphere lenses
- Has a contact lens prescription outside the range of the available parameters of the study lenses.
- Has a spectacle cylinder ≥1.00D of cylinder in either eye.
- Has a history of not achieving comfortable CL wear (5 days per week; > 8 hours/day)
- Has contact lens best corrected distance vision worse than 20/25 (0.10 logMAR) in either eye.
- Presence of clinically significant (grade 2-4) anterior segment abnormalities
- Presence of ocular or systemic disease or need of medications which might interfere with contact lens wear.
Slit lamp findings that would contraindicate contact lens wear such as:
- Pathological dry eye or associated findings
- Pterygium, pinguecula, or corneal scars within the visual axis
- Neovascularization > 0.75 mm in from of the limbus
- Giant papillary conjunctivitis (GCP) worse than grade 1
- Anterior uveitis or iritis (past or present)
- Seborrheic eczema, Seborrheic conjunctivitis
- History of corneal ulcers or fungal infections
- Poor personal hygiene
- Has a known history of corneal hypoesthesia (reduced corneal sensitivity)
- Has aphakia, keratoconus or a highly irregular cornea.
- Has Presbyopia or has dependence on spectacles for near work over the contact lenses.
- Has undergone corneal refractive surgery.
- Is participating in any other type of eye related clinical or research study.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Nicht randomisiert
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Single
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
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Aktiver Komparator: enfilcon A
All participants are habitual wearers of enfilcon A lens and who are refitted with somofilcon A lens
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Somofilcon A-Linse
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Experimental: somofilcon A
All participants are habitual wearers of enfilcon A lens and who are refitted with somofilcon A lens
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Somofilcon A-Linse
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Visual Acuity - Enfilcon A and Somofilcon A
Zeitfenster: Baseline, 1 Week, 2 Week, 4 Week
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Monocular and binocular logMAR visual acuity for enfilcon A / somofilcon A assessed at baseline and somofilcon A lenses assessed at 1 week, 2 week, 4 week.
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Baseline, 1 Week, 2 Week, 4 Week
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Subjective Assessments. - Enfilcon A and Somofilcon A
Zeitfenster: Baseline, 1 Week, 2 Week, 4 Week
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Subjective assessments for: comfort, dryness, handling, overall vision satisfaction, and eye whiteness.
Enfilcon A was assessed at baseline and somofilcon A lenses assessed at 1 week, 2 week, 4 week.
Scale(s): comfort (0=very poor; 10=excellent), dryness (0=very dry; 10=no dryness), handling (0=very difficult; 10=very easy), overall vision satisfaction (0=very unsatisfied; 10=very satisfied), habitual eye whiteness (0=not white; 10= totally white)
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Baseline, 1 Week, 2 Week, 4 Week
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Hauptermittler: Robert Montés-Mico, O.D., Optometry Research Group (GIO) University of Valencia
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Studienbeginn
Primärer Abschluss (Tatsächlich)
Primärer Abschluss
Studienabschluss (Tatsächlich)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- EX-MKTG-52
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