Evaluation of a new corneal implant for severe eye conditions

Prospective, Investigator Initiated Feasibility Study to Evaluate the Safety, and Indicative Effectiveness of Gebauer™ Lenticules in Patients Suffering From Severe Keratoconus or Post LASIK Ectasia

Not applicable Interventional The Royal Wolverhampton Hospitals NHS Trust · NCT04741230

This study is testing a new corneal implant to see if it can help people with severe eye conditions like keratoconus and post-LASIK ectasia improve their vision without needing more invasive surgery.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment15 (estimated)
Ages18 Years to 79 Years
SexAll
SponsorThe Royal Wolverhampton Hospitals NHS Trust Government
Locations1 site (Wolverhampton, West Midlands)
Trial IDNCT04741230 on ClinicalTrials.gov

What this trial studies

This study investigates the use of the Gebauer™ Lenticule, a novel corneal implant derived from porcine collagen, for treating severe keratoconus and post-LASIK ectasia. The implant is designed for intra-stromal insertion to improve corneal stability without impairing vision, particularly in patients who wish to avoid more invasive surgical options like corneal transplants. The procedure is reversible, allowing for removal of the implant if necessary. Patients will be monitored for outcomes related to vision and corneal health following the intervention.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 to 80 with severe keratoconus or post-LASIK ectasia who prefer to avoid corneal transplant surgery.

Not a fit: Patients with other significant ocular pathologies or those who are not suitable for the procedure due to health concerns may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a less invasive option for patients with severe keratoconus or post-LASIK ectasia, potentially preserving or improving their vision.

How similar studies have performed: While this approach is novel, similar studies evaluating corneal implants have shown promise in improving vision outcomes in patients with corneal ectatic conditions.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of severe keratoconus in patients who would prefer to avoid corneal transplant surgery / penetrating keratoplasty OR
* Diagnosis of severe post-LASIK Ectasia in patients who would prefer to avoid corneal transplant surgery / penetrating keratoplasty
* In terms of general health, patients must be free of diagnosed terminal illnesses (life expectancy of greater than or equal to 2 years).
* Patients must be aged 18 years or over and less than 80 years old
* Patients' contact lenses must have been removed at least one-week prior to surgery for soft lenses and two weeks prior to surgery for hard lenses
* Subject understands the study requirements and the treatment procedures and provides written Informed Consent before any study-specific tests or procedures are performed
* Patient must be able and willing to complete all study visits and comply with the study-specific requirements

Exclusion Criteria:

* History or presence of any ocular pathologies that may interfere with the planned surgical treatment, including corneal epithelial problems
* Previous corneal transplantation or corneal implant in the designated eye
* Cataract with anticipated surgical intervention (IOL implantation) within 2 years
* Active inflammation and/or infection of the eye or the eye lid
* Patients with Intra Ocular Pressure (IOP) \<10 mmHg or \>21 mmHg
* Professionally diagnosed and currently treated autoimmune diseases
* Current strong symptoms of any allergy
* History of major organ transplantation and/or current continuing immunosuppressive treatment
* History of blood transfusion within the last 12 months
* Subject who is currently participating or has participated in another investigational clinical study within the past 60 days Pregnancy and lactation

Where this trial is running

Wolverhampton, West Midlands

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions KeratoconusPost-Laser Retinal Condition
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.