NCT06947850

Brief Summary

TITLE: Toyos Clinic / A Phase 4 Study to Assess Longer Duration of Treatment with Cenegermin in Moderate to Severe Dry Eye-Associated Neurotrophic Keratitis

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
10

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Jan 2023

Typical duration for phase_4

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 21, 2023

Completed
2.2 years until next milestone

First Submitted

Initial submission to the registry

April 17, 2025

Completed
10 days until next milestone

First Posted

Study publicly available on registry

April 27, 2025

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 25, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 25, 2025

Completed
Last Updated

April 27, 2025

Status Verified

April 1, 2025

Enrollment Period

2.7 years

First QC Date

April 17, 2025

Last Update Submit

April 24, 2025

Conditions

Keywords

dry eyeNeurotrophic Keratitis

Outcome Measures

Primary Outcomes (1)

  • TITLE: Toyos Clinic / A Phase 4 Study to Assess Longer Duration of Treatment with Cenegermin in Moderate to Severe Dry Eye-Associated Neurotrophic Keratitis

    8 months

Study Arms (2)

8 week cenegermin treatment

ACTIVE COMPARATOR

All participants receive cenegermin topical ophthalmic drops 20mcg/ml six times daily for a treatment period of either 8 or 16 weeks followed by a follow up period total52 weeks total for each study arm.

Drug: Cenegermin Ophthalmic Solution [Oxervate]

16 week cenegermin

ACTIVE COMPARATOR

All participants receive cenegermin topical ophthalmic drops 20mcg/ml six times daily for a treatment period of either 8 or 16 weeks followed by a follow up period total52 weeks total for each study arm.

Drug: Cenegermin Ophthalmic Solution [Oxervate]

Interventions

Oxervate (cenegermin-bkbj) is commonly used to treat neurotrophic keratitis

16 week cenegermin8 week cenegermin treatment

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • \. Stated willingness to comply with all study procedures and availability for the duration of the study 3. Male or female, aged 18 to 85. 4. Subjects with moderate to severe ocular pain defined as SANDE questionnaire score of \>25 mm at time of screening not due to causes other than dry eye associated with NK in the opinion of the investigator.
  • \. Have used and/or desired to use an artificial tear substitute for dry eye symptoms in the past 3 months.
  • \. Have normal lid anatomy. 7. For females of reproductive potential:use of highly effective contraception for at least 1 month prior to screening and agreement to use such a method during study participation.
  • \. For males of reproductive potential:use of condoms or other methods to ensure effective contraception with partner 9. Are postmenopausal (no menstrual cycle for at least one year prior to Visit 1) or have undergone bilateral tubal ligation, hysterectomy, hysterectomy with uni- or bilateral oophorectomy, or bilateral oophorectomy.
  • \. Patients with stage 1 NK characterized by epithelial irregularity most commonly in the form of punctate keratopathy without epithelial defect or Stage 2 (persistent epithelial defect, PED).
  • \. PED or corneal ulceration of at least 2 weeks duration refractory to one or more conventional non-surgical treatments for neurotrophic keratitis (e.g., preservative-free artificial tears, gels or ointments; discontinuation of preserved topical drops and medications that can decrease corneal sensitivity; therapeutic contact lenses).
  • \. Evidence of decreased corneal sensitivity (≤ 4 cm using the Cochet-Bonnet aesthesiometer) within the area of the PED or corneal ulcer and outside of the area of the defect in at least one corneal quadrant.
  • \. BCDVA of 20/200 or better by Snellen or \>/=0.1 decimal units.

You may not qualify if:

  • Have a known hypersensitivity or contraindication to the investigational product or their components.
  • Severe systemic allergy.
  • Topical glaucoma medications or oral medications that are not being taken at a stable dose for the past 90 days.
  • Topical dry eye medications within the last month except unpreserved artificial tears which will be allowed throughout the study as needed.
  • Active viral, fungal or bacterial infection or active intraocular inflammation.
  • Subjects must be unwilling to abstain from eyelash growth medications for the duration of the trial.
  • Subjects must not have had penetrating intraocular surgery, refractive surgery or corneal transplantation, eyelid surgery within 12 weeks prior to Visit 1.
  • Febrile illness within one week of screening visit.
  • Treatment with another investigational drug or other investigational intervention withinone month of screening visit.
  • Have serious or severe disease or uncontrolled medical condition that in the judgment of the investigator could confound study assessments or limit compliance.
  • Subjects that are currently pregnant or intend to become pregnant during the course of the study, are breastfeeding, or who are unwilling to use highly effective birth control measures such as hormonal contraceptives, and/or mechanical barrier methods during the course of the trial.
  • Use of contact lenses during trial.
  • Amniotic membranes within two weeks prior to screening.
  • Punctal plugs will be allowed as long as they have remained stable for at least 90 days.
  • No neurostimulation including varencicline, acupuncture or TrueTear or like devices within one month of screening.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Toyos Clinic

Nashville, Tennessee, 37215, United States

Location

MeSH Terms

Conditions

Dry Eye Syndromes

Interventions

cenegermin

Condition Hierarchy (Ancestors)

Lacrimal Apparatus DiseasesEye Diseases

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 17, 2025

First Posted

April 27, 2025

Study Start

January 21, 2023

Primary Completion

September 25, 2025

Study Completion

September 25, 2025

Last Updated

April 27, 2025

Record last verified: 2025-04

Locations