Status:

RECRUITING

Anti-vascular Endothelial Growth Factor (Anti-VEGF) Monotherapy vs Anti-VEGF Followed by Subthreshold Micropulse Laser for Treating Severe Diabetic Macular Oedema When the Central Retina Goes <400 Microns

Lead Sponsor:

Belfast Health and Social Care Trust

Collaborating Sponsors:

Queen's University, Belfast

Conditions:

Severe Diabetic Macular Oedema

Eligibility:

All Genders

18+ years

Phase:

PHASE3

Brief Summary

The macula is the centre of the retina; it gives central sight, colour and fine detail. People with diabetes may develop diabetic macular oedema (DMO). In DMO, fluid leaks from blood vessels and build...

Detailed Description

Background DMO is a leading cause of sight loss in people living with diabetes (PLWD). Considering the prevalence of DMO (7%) and diabetes (\~4.8 million), around 336,000 PLWD have DMO in the UK. With...

Eligibility Criteria

Inclusion

  • Adults (\>18 years)
  • Diabetes type 1 or type 2
  • Presented with severe centre-involving (CI)-DMO (CRT ≥400 μm)
  • Within the first year of initiating anti-VEGF therapy but who still have DMO and their CRT is below 400 μm (and it remains, at the time of randomisation) following anti-VEGF therapy in either one eye or both eyes

Exclusion

  • Causes of macular oedema other than DMO
  • DMO with CRT ≥400 μm
  • Receipt of anti-VEGFs before their presentation with severe DMO (previous macular laser treatment for DMO is allowed)
  • Use of unlicensed anti-VEGFs (e.g. bevacizumab)
  • Inability, for any reason, to attend study visits
  • Active proliferative diabetic retinopathy (PDR) (treated and inactive PDR is allowed)
  • Use of pioglitazone which cannot be stopped for the duration of the trial
  • Cataract surgery or laser pan-retinal photocoagulation (PRP) within the previous 6 weeks
  • Currently enrolled in a Clinical Trial of an Investigational Medical Product
  • Declined consent for participation

Key Trial Info

Start Date :

May 19 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

November 30 2028

Estimated Enrollment :

264 Patients enrolled

Trial Details

Trial ID

NCT06985706

Start Date

May 19 2025

End Date

November 30 2028

Last Update

September 19 2025

Active Locations (22)

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Page 1 of 6 (22 locations)

1

The Royal Hospitals Belfast

Belfast, United Kingdom

2

Birmingham and Midland Eye Centre

Birmingham, United Kingdom

3

Sussex Eye Hospital

Brighton, United Kingdom

4

Bristol Eye Hospital

Bristol, United Kingdom