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Metagenomics for Ocular Inflammation

Key facts

Who runs it
Moorfields Eye Hospital NHS Foundation Trust
Where
United Kingdom1 site in 1 countryChoose a country to see its sites
Trial code
Status
Recruiting
People taking part
36 people, planned
Started
12 Jun 2025
Expected to end
27 Nov 2027
Type of study
Observational
Treatments tested
  • Metagenomic sequencing of aqueous humor
  • Ocular Imaging
Record updated
21 July 2026

Who can take part

Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 6 criteriaShow less

Who can take part

  • 18 years of age or older with the capacity to consent
  • Standard of care has not determined a clinical diagnosis
  • Active ocular inflammation with risk of visual loss
  • Clinically suspected infectious or para-infectious cause of ocular inflammation

Who cannot take part

  • Contraindication to ocular fluid sampling
  • Where an urgent result within 5 days is clinically required

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

The aim of this study is to apply a diagnostic test called 'metagenomic sequencing' to identify the involvement of potential infections in patients with ocular inflammation, where this hasn't been detected by currently available standard testing. For many people with ocular inflammation, no cause is ever found for their disease. In some cases, an infection or infectious trigger is suspected, but currently available tests are inadequate. Metagenomic sequencing can identify almost every globally known infection (bacteria, virus, fungi, parasites) in a sample. Therefore, it has the potential to identify an infection that has caused or triggered ocular inflammation, and as a consequence may help to identify specific treatments. It has the potential to improve our understanding of how to diagnose and treat people with this problem. This study will allow us to test the technique that has been previously optimised for brain infections, on ocular fluids. Participants will be 18 years of age or over and have active ocular inflammation which is suspected to be due to an infection, or an autoimmune process which has been triggered by an infection, but identification of this infection has not been possible using the investigations available as part of standard NHS care. Participants will be identified by the treating clinical team as requiring a sample of fluid from inside of the eye, and some of this fluid will be sent for metagenomic sequencing alongside standard testing. This study will be conducted at Moorfields Eye Hospital, London and will last for approximately a year. Participants will undergo additional non-invasive ocular imaging on the day of their clinic visit, but will not have to attend any additional research visits.

The group in the trial

  • Patients with ocular inflammation presumed to be infectious or para-infectious

    Patients with Ocular Inflammation undergoing Metagenomics on Aqueous Humour

    Treatment: Metagenomic sequencing of aqueous humor and Ocular Imaging

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Metagenomic Sequencing of Ocular Fluids in Patients With Ocular Inflammation
Record updated
21 July 2026