ExCrossV Multi Site Trial for Vascularized High Risk Keratoplasty (ExCrossV)
Multicenter klinisk forsøg til evaluering af sikkerheden og effektiviteten af ex vivo hornhinde-tværbinding af donor hornhindevæv brugt til vaskulariseret højrisiko-keratoplastik
The main objective of this study is to determine the safety of Ex Vivo Cross Linking (CXL) of donor corneal tissue in participants who have undergone high-risk penetrating keratoplasty.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
This is a randomized, double-masked, multi site clinical trial to determine the safety of Ex Vivo CXL of donor corneal tissue in 96 participants who have undergone high-risk penetrating keratoplasty.
Participants will be randomized to receive either a corneal tissue that has been untreated vs. a corneal tissue that has been treated with Photrexa® Viscous & Photrexa® and UV light. The tissue will be prepared by a Corneal Tissue Bank under Current-Good-Tissue-Practice (CGTP) and delivered to the respective institutions for transplantation. Participants will be monitored up to 24 months post-transplantation to assess for adverse events of the randomized tissue.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Fase 2
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Michael Cheung, MSc, CCRP
- Telefonnummer: 6175736060
- E-mail: mcheung0@meei.harvard.edu
Undersøgelse Kontakt Backup
- Navn: Nikolay Boychev, OD, PhD
Studiesteder
-
-
California
-
Irvine, California, Forenede Stater, 92617
- Ikke rekrutterer endnu
- University of California Irvine - Gavin Herbert Eye Institute
-
Ledende efterforsker:
- Marjan Farid, MD
-
Los Angeles, California, Forenede Stater, 90095
- Ikke rekrutterer endnu
- The University of California Los Angeles - Doris Stein Eye Research Center
-
Ledende efterforsker:
- Anthony Aldave, MD
-
San Francisco, California, Forenede Stater, 94158
- Ikke rekrutterer endnu
- University of California San Francisco - Wayne and Gladys Valley Center for Vision
-
Kontakt:
- Beth Cutrer
- E-mail: Beth.Cutrer@ucsf.edu
-
Ledende efterforsker:
- Julie Schallhorn, MD
-
-
Florida
-
Miami, Florida, Forenede Stater, 33136
- Rekruttering
- University of Miami - Bascom Palmer Eye Institute
-
Ledende efterforsker:
- Guillermo Amescua, MD
-
Kontakt:
- Jeremy Sandoval
- E-mail: jxs7997@med.miami.edu
-
Kontakt:
- Javier Parades, MBA, CCRP
- E-mail: jxp2537@med.miami.edu
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-
Indiana
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Indianapolis, Indiana, Forenede Stater, 46260
- Rekruttering
- Price Vision Group
-
Ledende efterforsker:
- David Price, MD
-
Kontakt:
- Marianne Price, PhD
- Telefonnummer: 317-844-5530
- E-mail: mprice@cornea.org
-
Kontakt:
- Lauren Blisset
- Telefonnummer: (317) 814-2996
- E-mail: lauren@cornea.org
-
-
Kansas
-
Overland Park, Kansas, Forenede Stater, 66204
- Rekruttering
- Kansas City Eye Clinic
-
Ledende efterforsker:
- Christopher Ketcherside, MD
-
Underforsker:
- Megan Haghnegahdar, MD
-
Kontakt:
- Megan Hefer, CCRP
- Telefonnummer: 913-341-3100
- E-mail: mhefter@kceyeclinic.com
-
-
Maryland
-
Towson, Maryland, Forenede Stater, 21204
- Rekruttering
- Mid-Atlantic Cornea Consultant
-
Ledende efterforsker:
- Sudeep Pramanik, MD
-
Ledende efterforsker:
- Alexander Altman, MD
-
Kontakt:
- Lauren West
- Telefonnummer: 410-616-9952
- E-mail: lwest@midatlanticcornea.com
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Massachusetts
-
Boston, Massachusetts, Forenede Stater, 02114
- Rekruttering
- Massachusetts Eye and Ear
-
Kontakt:
- Nikolay Boychev, OD, PhD
- E-mail: nboychev@meei.harvard.edu
-
Ledende efterforsker:
- Joseph Ciolino, MD
-
Kontakt:
- Michael Cheung, MSc, CCRP
- Telefonnummer: 617-573-6060
- E-mail: mcheung0@meei.harvard.edu
-
-
Michigan
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Ann Arbor, Michigan, Forenede Stater, 48015
- Rekruttering
- University of Michigan - Kellogg Eye Center
-
Ledende efterforsker:
- Shahzad Mian, MD
-
Kontakt:
- Lianne Shami, BS
- Telefonnummer: 734-647-8397
- E-mail: liannes@med.umich.edu
-
-
North Carolina
-
Bermuda Run, North Carolina, Forenede Stater, 27006
- Ikke rekrutterer endnu
- Wake Forest Baptist Eye Center
-
Ledende efterforsker:
- Matthew Giegengack, MD
-
Kontakt:
- Christina Robbins
- Telefonnummer: 336-716-3859
- E-mail: Christina.Robbins@Advocatehealth.org
-
Durham, North Carolina, Forenede Stater, 27705
- Rekruttering
- Duke University - Duke Eye Center
-
Ledende efterforsker:
- Esen Akpek, MD
-
Kontakt:
- Nathan Hamilton
- Telefonnummer: 919-668-0230
- E-mail: nathan.hamilton@duke.edu
-
Kontakt:
- Kyle Munar
- E-mail: kyle.munar@duke.edu
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Ohio
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Cincinnati, Ohio, Forenede Stater, 45242
- Rekruttering
- Cincinnati Eye Institute
-
Ledende efterforsker:
- Kavitha Sivaraman, MD
-
Kontakt:
- Lee Stokes
- Telefonnummer: 513-569-3213
- E-mail: lstokes@cvphealth.com
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Age 18 and older
- Willing and able to provide written informed consent
- Willing and able to comply with study assessments for the full duration of the study
- Patients undergoing high-risk penetrating keratoplasty, defined as corneal neovascularization (NV) in 1 or more quadrants ≥2 mm from the limbus or extension of corneal NV to the graft-host junction in a previously failed graft
- Superficial vessels are defined as those within the anterior one-third of the cornea and deep vessels within the posterior two-thirds of the cornea (i.e., deep stroma).
Superficial CNV involving ≤2 quadrants (equivalent to ≤6 clock hours) without deep CNV are classified as mild. CNV with >2 quadrants of superficial vessels (>6 clock hours) or 1 quadrant of deep vessels (>3 clock hours) as severe (36).
Exclusion Criteria:
- History of Stevens-Johnson syndrome or ocular pemphigoid
- Ocular or periocular malignancy
- Non-healing epithelial defect of at least 0.5x0.5 mm in host corneal bed lasting ≥6 weeks preoperatively
- Uncontrolled glaucoma
- Change in topical corticosteroid regimen within 14 days of transplantation
- Use of systemic immunosuppressive for indication other than corneal graft rejection
- Participation in another simultaneous medical investigation or trial
- Pregnancy (positive pregnancy test) or lactating
- Pre-menopausal women not using adequate contraception (Reliable intrauterine devices, hormonal contraception or a spermicide in combination with a barrier method)
- Ocular infection within 30 days prior to study entry.
- Presence of anterior chamber intraocular lens
- Active uveitis within 90 days prior to the study entry.
- No ocular surgery or procedure within 90 days prior to the study entry or concomitant to the study procedure.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Enkelt gruppeopgave
- Maskning: Firedobbelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: Participants Receiving Treated Cross Linked Corneal Tissue
Participants in this group will receive tissue that has been treated with 0.1% riboflavin (Vitamin B2) and 20% dextran (Photrexa® viscous and Photrexa®) with UV light treatment. Participants will be monitored over a period of 24 months. |
Participants are transplanted with corneal donor tissue that has been treated with 0.1% riboflavin (Vitamin B2) and 20% dextran (Photrexa® Viscous & Photrexa®) with UV light treatment.
Andre navne:
|
|
Placebo komparator: Participants Receiving Untreated Cross Linked Corneal Tissue
Participants in this group will receive tissue that has has not been treated with 0.1% riboflavin (Vitamin B2) and 20% dextran (Photrexa® viscous and Photrexa®) without UV light treatment. Participants will be monitored over a period of 24 months. |
Participants are transplanted with corneal donor tissue that has not been treated with the UV light and the 0.1% riboflavin (Vitamin B2) and 20% dextran (Photrexa® Viscous & Photrexa®) without UV light treatment, this is the control group.
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Determining the Primary Safety of Corneal Cross Linking
Tidsramme: 24 Months
|
The occurrence of adverse events throughout study including:
|
24 Months
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Measure of the Frequency of Graft Failures though Corneal Cross Linking
Tidsramme: 24 Months
|
To determine the efficacy of using cross linked tissue for the indicated keratoplasty for the prevention of corneal graft rejection and corneal neovascularization, by measuring the frequency of primary graft failures over 24 months. |
24 Months
|
|
Measure of Time from Surgery to Overall Graft Failure for Corneal Cross Linking over 24 Months
Tidsramme: 24 Months
|
The efficacy of using cross linked tissue for the indicated keratoplasty for the prevention of corneal graft rejection and corneal neovascularization, by measuring the time from surgery to overall graft failure (regardless of cause). |
24 Months
|
|
Measure of Time from Surgery to Graft Rejection for Corneal Cross Linking over 24 Months
Tidsramme: 24 Months
|
The efficacy of using cross linked tissue for the indicated keratoplasty for the prevention of corneal graft rejection and corneal neovascularization, by measuring the occurrence of any rejection episode. (Epithelial, Endothelia, Sub Epithelial, or Mixed) determined as either definite rejection, probably rejection, and possible rejection, from the time of surgery over 24 months. |
24 Months
|
|
Measure of the Efficacy of Corneal Cross Linking Through Image Review
Tidsramme: 24 Months
|
The efficacy of using cross linked tissue for the indicated keratoplasty for the prevention of corneal graft rejection and corneal neovascularization. 1. Corneal Neovascularization (CNV) measured and analyzed from slit-lamp photography. |
24 Months
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Joseph Ciolino, MD, Massachusetts Eye and Ear
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
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
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 2023P002687
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