NCT04258787

Brief Summary

This is an observational study using optical coherence tomography (OCT) technology to quantify corneal edema in Fuchs' endothelial dystrophy and predict refractive shift from resolving corneal edema after surgical treatments.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
26mo left

Started Jun 2020

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress74%
Jun 2020Jun 2028

First Submitted

Initial submission to the registry

February 4, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

February 6, 2020

Completed
5 months until next milestone

Study Start

First participant enrolled

June 26, 2020

Completed
6.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2028

Last Updated

September 9, 2025

Status Verified

September 1, 2025

Enrollment Period

6.9 years

First QC Date

February 4, 2020

Last Update Submit

September 5, 2025

Conditions

Keywords

FuchsPseudophakic Bullous KeratopathyOptical Coherence Tomography (OCT)PBK

Outcome Measures

Primary Outcomes (2)

  • Corneal Epithelial Edema/Haze

    OCT will be used to measure corneal epithelial edema/haze (in microns) in participants with Fuchs' or PBK

    up to 2 years

  • Corneal Stromal Edema/Haze

    OCT will be used to measure corneal stromal edema/haze (in microns) in participants with Fuchs' or PBK

    up to 2 years

Study Arms (2)

Group A: No Surgery Group

This group consists of adults ages 18 or older who have been diagnosed with Fuchs' dystrophy or pseudophakic bullous keratopathy but do not require surgery per standard-of-care guidelines.

Group B: Surgery Group

This group consists of adults ages 18 or older who have been diagnosed with Fuchs' dystrophy or pseudophakic bullous keratopathy, who require Descemet's Stripping Endothelial Keratoplasty (DSAEK), Descemet's Membrane Endothelial Keratoplasty (DMEK), or Descemet's Stripping Only (DSO) surgery. All treatment decisions will be made by the attending physician based on standard-of-care guidelines. (The study does not designate a treatment modality or pay for the treatment.)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adults age 18 or older with Fuchs' or PBK

You may qualify if:

  • Damaged or diseased corneal endothelium from Fuchs' or PBK
  • Willingness to commit to required study visits

You may not qualify if:

  • Prior Endothelial Keratoplasty (EK) or any other surgery except uncomplicated cataract surgery
  • Presence of a condition that increases the probability for treatment failure (e.g., heavily vascularized cornea, uncontrolled uveitis)
  • Other primary endothelial dysfunction conditions (e.g., posterior polymorphous corneal dystrophy and congenital hereditary corneal dystrophy, iridocorneal endothelial syndrome)
  • Central sub-epithelial or stromal scarring that could impact post-operative clarity assessment
  • Peripheral anterior synechiae in the angle greater than 3 clock hours
  • Hypotony
  • Uncontrolled glaucoma
  • Visually significant optic nerve or macular pathology

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Oregon Health & Science University

Portland, Oregon, 97239, United States

RECRUITING

MeSH Terms

Conditions

Fuchs' Endothelial Dystrophy

Condition Hierarchy (Ancestors)

Corneal Dystrophies, HereditaryCorneal DiseasesEye DiseasesEye Diseases, HereditaryGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

  • Winston Chamberlain, MD, PhD

    Oregon Health and Science University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Humberto Martinez, COT

CONTACT

Denzil Romfh, OD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

February 4, 2020

First Posted

February 6, 2020

Study Start

June 26, 2020

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

June 1, 2028

Last Updated

September 9, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations