Isolated Bowman Layer Graft for Reducing and Stabilizing Advanced Keratoconus

NCT ID: NCT01686906

Last Updated: 2023-01-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

35 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-01-31

Study Completion Date

2020-12-31

Brief Summary

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To evaluate the efficacy of mid-stromal implantation of an isolated Bowman layer graft, to reduce and stabilize ectasia in eyes with advanced keratoconus

Detailed Description

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Conditions

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Advanced Keratoconus

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Bowman layer graft implantation

Group Type EXPERIMENTAL

Bowman layer graft implantation

Intervention Type PROCEDURE

For patients with progressive advanced keratoconus, a mid-stromal manual dissection is made and a donor isolated Bowman layer is positioned into the stromal pocket.

Interventions

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Bowman layer graft implantation

For patients with progressive advanced keratoconus, a mid-stromal manual dissection is made and a donor isolated Bowman layer is positioned into the stromal pocket.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

•Advanced keratoconus

Exclusion Criteria

* Further ophthalmic diseases
* History of ocular surgery
* Pregnancy, brest feeding
Minimum Eligible Age

16 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Amnitrans Eyebank Rotterdam

OTHER

Sponsor Role collaborator

Netherlands Institute for Innovative Ocular Surgery

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Gerrit RJ Melles, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Netherlands Institute for Innovative Ocular Surgery

Locations

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Netherlands Institute for Innovative Ocular Surgery

Rotterdam, , Netherlands

Site Status

Countries

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Netherlands

References

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van Dijk K, Liarakos VS, Parker J, Ham L, Lie JT, Groeneveld-van Beek EA, Melles GR. Bowman layer transplantation to reduce and stabilize progressive, advanced keratoconus. Ophthalmology. 2015 May;122(5):909-17. doi: 10.1016/j.ophtha.2014.12.005. Epub 2015 Jan 14.

Reference Type BACKGROUND
PMID: 25596620 (View on PubMed)

van Dijk K, Parker J, Tong CM, Ham L, Lie JT, Groeneveld-van Beek EA, Melles GR. Midstromal isolated Bowman layer graft for reduction of advanced keratoconus: a technique to postpone penetrating or deep anterior lamellar keratoplasty. JAMA Ophthalmol. 2014 Apr 1;132(4):495-501. doi: 10.1001/jamaophthalmol.2013.5841.

Reference Type BACKGROUND
PMID: 24557359 (View on PubMed)

Groeneveld-van Beek EA, Parker J, Lie JT, Bourgonje V, Ham L, van Dijk K, van der Wees J, Melles GR. Donor Tissue Preparation for Bowman Layer Transplantation. Cornea. 2016 Dec;35(12):1499-1502. doi: 10.1097/ICO.0000000000000905.

Reference Type BACKGROUND
PMID: 27362885 (View on PubMed)

Parker JS, van Dijk K, Melles GR. Treatment options for advanced keratoconus: A review. Surv Ophthalmol. 2015 Sep-Oct;60(5):459-80. doi: 10.1016/j.survophthal.2015.02.004. Epub 2015 Mar 5.

Reference Type BACKGROUND
PMID: 26077628 (View on PubMed)

van der Star L, van Dijk K, Vasiliauskaite I, Dapena I, Oellerich S, Melles GRJ. Long-Term Outcomes of Bowman Layer Inlay Transplantation for the Treatment of Progressive Keratoconus. Cornea. 2022 Sep 1;41(9):1150-1157. doi: 10.1097/ICO.0000000000002871. Epub 2021 Oct 5.

Reference Type BACKGROUND
PMID: 34620767 (View on PubMed)

Other Identifiers

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NIIOS-BL-2012

Identifier Type: -

Identifier Source: org_study_id

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