Dry Eye OmniLenz Application of Omnigen Research Study

Summary

Dry eye disease (DED) is a disease of the ocular surface characterised by ocular surface inflammation and damage and neurosensory abnormalities. Tear film breakup leading to localised hyperosmolarity can result in ocular surface damage either directly or through the cascade of inflammation that it initiates. Transplantation of human amniotic membrane has been used for many ophthalmic indications including many related to inflammation of the ocular surface.

A recent study published by McDonald and colleagues in 2018 conducted in 84 DED patients (97 eyes) receiving cryopreserved AM treatment (Prokera) in addition to prior maximal medical management demonstrated an improved ocular surface along with a notable reduction in disease severity scores.

Omnigen is a dehydrated amniotic membrane derived from human sources and certified by the UK Human Tissue Authority. OmniLenz Bandage Contact Lens (BCL) is a bespoke bandage contact lens (BCL) designed to enable the application of Omnigen without the need for either sutures or glue. The application procedure takes approximately 15 minutes and the patients wear the lens continually. The McDonald study indicates that any improvement seen persists for at least three months.

This study aims to expand on the work by McDonald et al. The study will be a randomised, parallel group study comparing Omnigen treatment applied with an OmniLenz BCL to OmniLenz BCL alone. The later treatment enables a degree of masking and for any difference to be attributable to the Omnigen rather than a contact lens. This is in line with the recommendations laid out be the DEWS group. Interim data and analysis will be conducted after enrolment of 20 patients. Following the first week application the eye will be assessed, and a further treatment applied for a further week. Therefore, the total treatment period will be two weeks with follow-up assessments at one and three months. At six months patients will complete an OSDI and EQ-5D assessment via email or post. The primary efficacy variability will be change in OSDI score, a patient reported scoring of dry eye symptoms. A number of clinical assessments of the ocular surface will also be performed as part of the secondary outcomes whilst the opportunity to measure a number of exploratory measures will enable further work following this study.

Conditions

• Dry Eye

Interventions

DEVICE

Amniotic membrane Omnigen[TM]

17mm circular disk of processed amniotic tissue donated by mother after birth with a 6mm laser cut aperture to allow unimpeded vision https://www.nu-vision.co.uk/omnigen

DEVICE

Bandage soft Contact Lens OmniLenz[R]

18mm soft silicone-hydrogel contact lens https://www.nu-vision.co.uk/omnilenz

Sponsors & Collaborators

• NuVision

  collaborator UNKNOWN

• Aston University

  lead OTHER

Principal Investigators

• Andrew Hopkinson, PhD · NuVision

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2020-09-24

Primary Completion

2023-06-30

Completion

2023-07-30

Countries

• United Kingdom

Study Locations