Actively Recruiting
Treatment of Retinal Detachment in People Who Have Not Had Cataract Surgery With Vitrectomy vs Vitrectomy and Cataract Removal
Led by Queen's University, Belfast · Updated on 2025-05-30
276
Participants Needed
27
Research Sites
155 weeks
Total Duration
On this page
Sponsors
Q
Queen's University, Belfast
Lead Sponsor
N
Northern Ireland Clinical Trials Unit
Collaborating Sponsor
AI-Summary
What this Trial Is About
Background and study aims The retina is the layer at the back of the eye that allows us to see. Sometimes, it can detach from the wall of the eye, causing a condition called rhegmatogenous retinal detachment (RRD), which leads to vision loss and requires surgery. The most common surgery for RRD is vitrectomy, but this can lead to complications like cataracts, which worsen over time and need to be removed with another surgery. Cataract surgery involves replacing the cloudy lens with a clear artificial one. Currently, it's unclear whether it's better to perform both surgeries at the same time or separately. The COMBAT study aims to find out which approach is best by comparing the outcomes of patients who have vitrectomy alone versus those who have both surgeries (vitrectomy and cataract surgery by phacoemulsification and intraocular lens \[IOL\] implantation) together. Who can participate? Adults aged 50 and older who have RRD but are not highly myopic (less than -6 diopters or an axial length of 26.5 mm or less) and have not had previous vitreoretinal surgery. Participants must be scheduled for a pars plana vitrectomy to repair their RRD. What does the study involve? Participants will be randomly assigned to one of two groups: one group will have vitrectomy first and, if needed, cataract surgery later; the other group will have both surgeries at the same time. The study will compare their vision, the number of successful retina reattachments, health related and visual related quality of life, patient satisfaction, complications, additional surgeries and procedures, and costs.
CONDITIONS
Official Title
Treatment of Retinal Detachment in People Who Have Not Had Cataract Surgery With Vitrectomy vs Vitrectomy and Cataract Removal
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adults 50 years of age or older
- Non-highly myopic phakic rhegmatogenous retinal detachment (less than -6 diopters and axial length 26.5 mm or less)
- No previous vitreoretinal surgery
- Scheduled for pars plana vitrectomy to repair their retinal detachment
You will not qualify if you...
- Presence of a formed or established cataract graded as nuclear sclerosis greater than 3 or cortical/posterior cataract involving the visual axis
- Pseudophakia or aphakia
- High myopia (greater than or equal to -6 diopters or axial length over 26.5 mm)
- Giant retinal tear larger than 3 clock hours
- Retinal dialysis
- Participation in an investigational drug study
- Declined consent for participation
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 27 locations
1
Buckinghamshire Healthcare NHS Trust
Aylesbury, United Kingdom
Actively Recruiting
2
Belfast Health and Social Care Trust
Belfast, United Kingdom
Not Yet Recruiting
3
Sandwell and West Birmingham Hospitals NHS Trust
Birmingham, United Kingdom
Not Yet Recruiting
4
Bradford Teaching Hospitals NHS Foundation Trust
Bradford, United Kingdom
Not Yet Recruiting
5
University Hospitals Bristol NHS Foundation Trust
Bristol, United Kingdom
Not Yet Recruiting
6
County Durham and Darlington NHS Foundation Trust
Darlington, United Kingdom
Not Yet Recruiting
7
NHS Greater Glasgow & Clyde
Glasgow, United Kingdom
Not Yet Recruiting
8
Hull University Teaching Hospitals NHS Trust
Hull, United Kingdom
Not Yet Recruiting
9
The Leeds Teaching Hospitals NHS Trust
Leeds, United Kingdom
Not Yet Recruiting
10
University Hospitals Leicester NHS Trust
Leicester, United Kingdom
Not Yet Recruiting
11
Liverpool University Hospitals NHS Foundation Trust
Liverpool, United Kingdom
Not Yet Recruiting
12
Barts Health NHS Trust
London, United Kingdom
Not Yet Recruiting
13
Guys & St Thomas NHS Foundation Trust
London, United Kingdom
Not Yet Recruiting
14
King's College Hospital NHS Foundation Trust
London, United Kingdom
Not Yet Recruiting
15
Moorfields Eye Hospital NHS Foundation Trust
London, United Kingdom
Not Yet Recruiting
16
Manchester University NHS Foundation Trust
Manchester, United Kingdom
Not Yet Recruiting
17
South Tees Hospitals NHS Foundation Trust
Middlesbrough, United Kingdom
Not Yet Recruiting
18
Newcastle Upon Tyne Hospitals NHS Foundation Trust
Newcastle upon Tyne, United Kingdom
Not Yet Recruiting
19
Oxford University Hospitals NHS Foundation Trust
Oxford, United Kingdom
Not Yet Recruiting
20
University Hospitals Plymouth NHS Trust
Plymouth, United Kingdom
Not Yet Recruiting
21
Royal Berkshire NHS Foundation Trust
Reading, United Kingdom
Not Yet Recruiting
22
Sheffield Teaching Hospitals NHS Foundation Trust
Sheffield, United Kingdom
Not Yet Recruiting
23
University Hospital Southampton NHS Foundation Trust
Southampton, United Kingdom
Not Yet Recruiting
24
South Tyneside and Sunderland NHS Trust
Sunderland, United Kingdom
Not Yet Recruiting
25
Mid & South Essex NHS Foundation Trust
Westcliff-on-Sea, United Kingdom
Not Yet Recruiting
26
The Royal Wolverhampton NHS Trust
Wolverhampton, United Kingdom
Not Yet Recruiting
27
York and Scarborough Teaching Hospitals NHS Foundation Trust
York, United Kingdom
Not Yet Recruiting
Research Team
C
Colette Jackson
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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