Actively Recruiting

Phase 3
Age: 18Years +
All Genders
ID05275972

Descemet Endothelial Thickness Comparison Trials (DETECT I & II)

Led by Stanford University · Updated on 2026-05-08

60

Participants Needed

8

Research Sites

52 weeks

Total Duration

On this page

Sponsors

S

Stanford University

Lead Sponsor

O

Oregon Health and Science University

Collaborating Sponsor

AI-Summary

What this Trial Is About

The trial investigates treatments for Fuchs endothelial dystrophy, a condition affecting the cornea's inner layer. It is a Phase 3, multi-center, randomized clinical trial comparing two surgical approaches for this condition. The goal is to better understand how different procedures affect vision and eye health in adults with this disease. The study is led by Stanford University and includes 60 participants who will be randomly assigned to treatment groups with masked outcome assessors to reduce bias. Participants will be randomly assigned to one of two groups: one receiving Descemet Membrane Endothelial Keratoplasty (DMEK) with a topical placebo, and the other undergoing Descemet Stripping Only (DSO) combined with topical Ripasudil 0.4%. The study is triple-masked, meaning patients, surgeons, and outcome assessors are unaware of the treatment assignments. Both treatments are delivered as eye procedures, and the Ripasudil is administered topically to the eye in the DSO group. During the 24-month study period, participants will undergo regular assessments including measuring their best spectacle-corrected visual acuity (BSCVA) at 3, 6, 12, and 24 months. Endothelial cell density will also be measured at 3, 6, and 24 months to monitor the cornea's cell health. Safety and adherence to the protocol will be monitored throughout to ensure accurate evaluation of each treatment's outcomes. Participants will be followed closely to assess the impact of treatments on vision and corneal health over time.

CONDITIONS

Brief Title

Descemet Endothelial Thickness Comparison Trial II

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Dysfunctional endothelium from FECD with few guttata extending beyond 4.5 mm
  • Peripheral endothelial cell count >1000 cells/mm2 in at least one quadrant
  • Good surgical candidate for either procedure as determined by the surgeon
  • Willingness to participate
  • Age greater than 18 years
Not Eligible

You will not qualify if you...

  • Aphakia, anterior chamber IOL or scleral fixated IOL in study eye prior to or anticipated during EK
  • Pre-operative central sub-epithelial or stromal scarring that could impact post-operative stromal clarity assessment
  • Other primary endothelial dysfunction such as PPMD
  • Visually significant optic nerve or macular pathology
  • Hypotony (Intraocular pressure <10mmHg)
  • Any prior intraocular surgery other than cataract surgery
  • More than 3 clock hours of any anterior or posterior synechiae
  • More than 1 quadrant of stromal corneal vascularization
  • Inability to comply with post-operative instructions
  • Pregnancy

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

Duration - Up to 24 months

Participants undergo one of two surgical procedures combined with topical eye drops as part of the treatment.

Regular visits at 3, 6, 12, and 24 months for assessments

Trial Site Locations

Total: 8 locations

1

Stanford University

Palo Alto, California, United States, 94303

Actively Recruiting

2

University of California Davis

Sacramento, California, United States, 95817

Actively Recruiting

3

University of Miami

Palm Beach Gardens, Florida, United States, 33418

Actively Recruiting

4

Dartmouth-Hitchcock Medical Center

Lebanon, New Hampshire, United States, 03766

Actively Recruiting

5

Legacy Devers Eye Institute

Portland, Oregon, United States, 97210

Actively Recruiting

6

Oregon Health & Science University

Portland, Oregon, United States, 97239

Actively Recruiting

7

University of Pennsylvania

Philadelphia, Pennsylvania, United States, 19104

Actively Recruiting

8

Wills Eye Hospital

Philadelphia, Pennsylvania, United States, 19107

Actively Recruiting

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Research Team

N

Nicole Varnado, MPH

How is the study designed?

Study Type

INTERVENTIONAL

Masking

TRIPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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Published Research Related To This Trial

Descemet Endothelial Thickness Comparison Trial II (DETECT II): multicentre, outcome assessor-masked, placebo-controlled trial comparing Descemet membrane endothelial keratoplasty (DMEK) to Descemet stripping only (DSO) with adjunctive ripasudil for Fuchs dystrophy.

Charles C Lin, Winston Chamberlain, Beth Ann Benetz...

https://pubmed.ncbi.nlm.nih.gov/39353677