ClinicalTrials.gg
TerminatedNCT04485858Updated Sep 24, 2024Results posted

First in Human (FIH) Study to Assess Safety and Efficacy of the CorNeat KPro for the Treatment of Corneal Blindness

An interventional study of CorNeat KPro in Corneal Disease, Corneal Opacity and Corneal Injuries, sponsored by CorNeat Vision Ltd.. Terminated at 8 sites in 5 countries. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2024-09-24.

Sponsored by CorNeat Vision Ltd. · Not applicable, Interventional, and Treatment

Why this study was terminated
Sponsor's decision
Phase
Not applicable
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
18 Years to 80 Years
Sex
All
01

Study summary

Prospective, open label, single arm, First in Human (FIH) clinical study to assess safety and efficacy of the CorNeat Keratoprosthesis, a synthetic cornea, for the treatment of corneal blindness

Read the detailed description

The objective of this clinical study is to prove the safety and effectiveness of the CorNeat Keratoprosthesis (KPro), a synthetic, artificial cornea for or the treatment of corneal blindness in subjects who are not candidates for traditional corneal transplant.

Ten subjects who are willing to take part in the study will undergo screening examinations to verify their eligibility.

The CorNeat KPro will be implanted unilaterally in eligible subjects. Follow up procedures will be performed at 1 day, 1 week, 1, 2, 3, 6, 9 \& 12 months post implantation and will include clinical assessment of the implanted eye using slit-lamp biomicroscopy, intra ocular pressure measurement and ocular imaging. Additionally, subjects' visual acuity will be assessed and recorded throughout the 12 months follow up period.

02

Conditions studied

  • Corneal Disease
  • Corneal Opacity
  • Corneal Injuries
03

In context

Corneal Diseases

219 studies on the registry are indexed under Corneal Diseases; 43 are open to participants now.

This study's enrollment of 10 is below the median of 40 across 132 interventional studies indexed under Corneal Diseases.

Browse Corneal Diseases studies →

Lead sponsor

CorNeat Vision Ltd. is the lead sponsor of 4 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Male or female aged ≥ 18 and ≤ 80 years on the day of screening
  • Candidates must have the ability and willingness to attend all scheduled visits and comply with all study procedures
  • Keratoprosthesis surgery is indicated in cases when keratoplasty is not a reasonable option or following a verifiable history of prior failed corneal transplantation
  • Indications that fall under poor candidate for keratoplasty include but are not limited to: herpetic keratitis, vascularized corneal scar, Ocular Cicatricial Pemphigoid, alkali burn, Steven Johnson Syndrome, and limbal stem cell deficiency
  • Pseudophakia
  • Adequate tear film and lid function
  • Perception of light in all quadrants
  • Female patients of childbearing age must have negative pregnancy test at screening and agree to use an effective method of throughout the study

Exclusion criteria

Exclusion Criteria:

  • Reasonable chance of success with traditional keratoplasty
  • Current retinal detachment
  • Connective tissue diseases
  • End-stage glaucoma
  • History or evidence of severe inflammatory eye diseases (i.e. uveitis, retinitis, scleritis) in one or both eyes within 6 months prior to planned implantation
  • History of ocular or periocular
  • History of extensive keloid formation
  • Any known intolerance or to topical anaesthetics, mydriatics, or component of the device
  • Signs of current infection, including fever and current treatment with antibiotics
  • Severe generalized disease that results in a shorter than a year
  • Any clinical evidence that the investigator feels would place the subject at increased risk with the placement of the device
  • Corneal thickness less than 400 or higher than 1,200 microns in any region of the pachymetry map of the eye intended to be operated
  • Currently pregnant or breastfeeding
  • Participation in any study involving an drug or device within the past 30 days or 5 half-lives of the drug (whichever longer) or ongoing participation in a study with an investigational drug or device
  • Intraoperative complication that would preclude implantation of the study device
  • Vulnerable populations
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    CorNeat KPro

    Intraocular implantation of the CorNeat KPro

    Device: CorNeat KPro

Interventions

  • DeviceCorNeat KPro

    CorNeat KPro will be implanted into the subject's eye where the optic component snaps into the patient's trephined cornea and is sutured to the eye wall using 3 non-degradable sutures and the skirt component is placed under the conjunctiva

06

What researchers measure

Primary outcomes

  1. Safety Endpoint as Determined by the Frequency and Severity of All Unanticipated Adverse Device-related Events (UADE)

    The frequency and severity of all unanticipated adverse device-related events (UADE) or treatment-related adverse events, during and after implantation of the CorNeat KPro and up to 12 months should be less than SOC

    Time frame: Throughout the 12 months follow up period

Secondary outcomes

  1. Secondary Effectiveness Endpoint - Improvement in BCDVA

    Improvement in BCDVA (using ETDRS visual acuity chart, where applicable) compared to baseline

    Time frame: Throughout the 12-months post operation

07

Results

Posted Sep 24, 2024

Participant flow

Participant flow — Overall Study
MilestoneCorNeat KPro
Started10
Implantations in israel, france, canada10
Improved visual acuity at some point throughout the study8
Va improvement at their last follow up visit they attended (after 6-24 months from surgery)4
Completed5
Not completed5

Outcome measures

PrimarySafety Endpoint as Determined by the Frequency and Severity of All Unanticipated Adverse Device-related Events (UADE)

The frequency and severity of all unanticipated adverse device-related events (UADE) or treatment-related adverse events, during and after implantation of the CorNeat KPro and up to 12 months should be less than SOC

Time frame:
Throughout the 12 months follow up period
Reported as:
Number · Participants
Safety Endpoint as Determined by the Frequency and Severity of All Unanticipated Adverse Device-related Events (UADE)
ParticipantsCorNeat KPro
Safety Endpoint as Determined by the Frequency and Severity of All Unanticipated Adverse Device-related Events (UADE)7
SecondarySecondary Effectiveness Endpoint - Improvement in BCDVA

Improvement in BCDVA (using ETDRS visual acuity chart, where applicable) compared to baseline

Time frame:
Throughout the 12-months post operation
Reported as:
Count of participants · Participants
Secondary Effectiveness Endpoint - Improvement in BCDVA
ParticipantsCorNeat KPro
Secondary Effectiveness Endpoint - Improvement in BCDVA8

Adverse events

Collected over 2 years. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
CorNeat KPro0/10 (0%)7/10 (70%)7/10 (70%)
Most frequent serious events
Most frequent serious events
EventCorNeat KPro
Covid 19 InfectionInfections and infestations1/10
Exposure of implantEye disorders1/10
Flat AC with bleedingEye disorders1/10
Fungal infection in the skirt of artificial corneaEye disorders1/10
HeadacheGeneral disorders1/10
Shallow retinal detachmentEye disorders1/10
Dehiscence of prosthesis superiorlyEye disorders1/10
Conjunctival retraction with dehiscence of prosthesis & possible corneal epithelial ingrowthEye disorders1/10
Choroidal detachment and exudative detachmentEye disorders1/10
Most frequent other events
Showing 10 of 25
Most frequent other events
EventCorNeat KPro
Exposed synthetic skirt of the implantEye disorders3/10
Severe headache (crown top right)General disorders2/10
Choroidal HemorrhageEye disorders2/10
Vitreous HemorrhageEye disorders2/10
Metabolic acidosisEye disorders1/10
Retro prosthetic membraneEye disorders1/10
White nodule on the prosthetic skirtEye disorders1/10
left eye ocular painEye disorders1/10
fungal infection in the skirt of cornet artificial corneaEye disorders1/10
abnormal serum enzyme levelsEye disorders1/10

Baseline characteristics

Age, Continuous
Age, Continuous(Years)CorNeat KPro
Mean64.6 (38 to 78)
Sex: Female, Male
Sex: Female, Male(Participants)CorNeat KPro
Female1
Male9
Race (NIH/OMB)
Race (NIH/OMB)(Participants)CorNeat KPro
American Indian or Alaska Native1
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American0
White7
More than one race0
Unknown or Not Reported2
Region of Enrollment
Region of Enrollment(participants)CorNeat KPro
Canada5
Israel3
France2
Slit lamp examinations
Slit lamp examinations(participants)CorNeat KPro
Normal Lids/Lashes/Lacrimal5
Trichiasis Lids/Lashes/Lacrimal2
Tarsorrhaphy Lids/Lashes/Lacrimal2
Ptosis Lids/Lashes/Lacrimal1
Normal conjunctiva10
Mild cornea edema1
Moderate cornea edema5
Severe cornea edema4
AC deep8
AC medium1
No flare5
No Fibrin present7
No cells present5
Normal iris5
Anirdia iris1
Morcher, iris prosthetic1
Normal pupil7
Normal vitreous body4
Pale optic nerve1
Normal macula1
Normal retinal vessels2
Normal retinal periphery2
Ocular imaging
Ocular imaging(Participants)CorNeat KPro
Pachymetry7
AC depth3
AC Morphology6
Location and position of IOL5
Angle Morphology7
Pain assessment
Pain assessment(participants)CorNeat KPro
No or minimal pain (grades 0-2)8
Mild pain (grades 3-4)1
Moderate pain (grades 5-7)1
Severe pain (grades 8-10)0
08

Study locations

8 sites
  • Cincinnati Eye Institute
    Edgewood, Kentucky 41017, United States
  • University of British Columbia
    Vancouver, British Columbia V5Z 3N9, Canada
  • UHN - University Health Network
    Toronto, Ontario M5T 2S8, Canada
  • CHU de Montpellier
    Montpellier, 34295, France
  • Hopital Fondation Adolphe de Rothschild
    Paris, France
  • Rabin Medical Center - Beilinson
    Petah tikva, 4941492, Israel
  • Amsterdam UMC - Location AMC
    Amsterdam, Netherlands
  • Maastricht UMC+
    Maastricht, 6229 HX, Netherlands
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Undecided

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2021 to primary completion in Jun 2023, 28 months.

Results were first posted in Sep 2024, 1 year 3 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 8, 2020
First posted
Jul 24, 2020
StartActual
Jan 3, 2021
Primary completionActual
Jun 1, 2023
CompletionActual
Jun 1, 2023
Results first posted
Sep 24, 2024
Last update
Sep 24, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 24, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04485858
Lead sponsor
CorNeat Vision Ltd.
Responsible party
Sponsor
First posted
Jul 24, 2020
Start date
Jan 3, 2021
Primary completion
Jun 1, 2023
Completion
Jun 1, 2023
Results posted
Sep 24, 2024
Last update
Sep 24, 2024

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is terminated, as verified in Sep 2024. You cannot join it, but the record below documents what was studied.

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