The OrQA-UK (Organ Quality Assessment) trial: testing a new artificial intelligence tool to help increase the use of donated livers in the UK

ISRCTN ISRCTN16126004
DOI https://doi.org/10.1186/ISRCTN16126004
Integrated Research Application System (IRAS) 354517
Central Portfolio Management System (CPMS) 64647
National Institute for Health and Care Research (NIHR) 208448
Sponsor Newcastle upon Tyne Hospitals NHS Foundation Trust
Funder National Institute for Health and Care Research
Submission date
19/05/2026
Registration date
29/05/2026
Last edited
29/05/2026
Recruitment status
Not yet recruiting
Overall study status
Ongoing
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Organ transplants have transformed the prospects for patients with organ failure, but there are fewer organs available to transplant than people needing them. Those available are under-used because of concerns about quality.
Liver quality can be assessed by sending a biopsy to a laboratory, but this costs time and money. Photographs of organs are often used as part of decision-making through the TransplantPath NHS online platform, which is used for transplant administration, but image quality is varied and open to error. This means that transplant services rely on surgeons taking out the donor organs to judge their quality and health by how they look and feel. Transplant surgeons will often play it safe, for example by overestimating the amount of fat in a liver. This cautious approach means that some good quality organs may not be used.
Our team has developed an Artificial Intelligence-powered tool (OrQA, Organ Quality Assessment) that can standardise an organ photograph by accurately assessing the organ’s quality and providing an OrQA quality score. The aim of the OrQA-UK clinical trial is to show that the OrQA-Liver (OrQA-L) quality score can assist transplant surgeons in evaluating the quality of donated livers, and reduce the rate at which donated livers are not used by 25%. This could mean 60 extra liver transplants taking place a year.

Who can participate?
This trial does not recruit participants, it enrols donor livers as the trial entity

What does the study involve?
In this clinical trial, photographs of livers will be randomly allocated to either having an OrQA-L quality score displayed with them, or not. The scores will be displayed alongside the liver images for transplant surgeons to see. This will mean we can assess scientifically if the OrQA-L quality score is helpful to surgeons, while still ensuring patient safety.

What are the possible benefits and risks of participating?
N/A, participants are not directly recruited into this study

Where is the study run from?
The study is Sponsored by Newcastle Upon Tyne Hospitals NHSFT who have delegated trial management to the NHS Blood & Transplant Clinical Trials Unit based in Cambridge

When is the study starting and how long is it expected to run for?
Expected to start in August 2026 until January 2029

Who is funding the study?
NIHR Invention for Innovation Programme

Who is the main contact?
The OrQA-UK trial team at NHSBT Clinical Trials Unit, OrQATrial@nhsbt.nhs.uk

Contact information

Ms Charlotte Hickman
Public, Scientific

NHSBT Clinical Trials Unit Cambridge
Long Road
Cambridge
CB2 0PT
United Kingdom

Phone +44 7553 525940
Email charlotte.hickman@nhsbt.nhs.uk
Prof Colin Wilson
Principal investigator

Honorary Professor of Transplantation and Hepato-Pancreato-Biliary Surgery, Newcastle-Upon-Tyne Hospitals NHSFT
Newcastle-Upon-Tyne
NE1 4LP
United Kingdom

ORCiD logoORCID ID 0000-0002-1515-8690
Phone +44 7801414519
Email colin.wilson6@nhs.net

Study information

Primary study designInterventional
AllocationRandomized controlled trial
MaskingOpen (masking not used)
ControlActive
AssignmentParallel
PurposeDiagnostic, Screening
Scientific titleOrQA-UK (Organ Quality Assessment): novel clinical trial of an AI enabled photograph assessment tool to improve organ utilisation in the United Kingdom
Study acronymOrQA-UK trial
Study objectives Primary Objective: To compare the non-use rate of livers between the control arm and intervention arm, which have the OrQA-L score displayed
Secondary Objective: To assess the quality of the graft and transplant outcome
Exploratory Objective: To compare the two arms using data obtained from livers which were perfused using ex-situ machine perfusion
Ethics approval(s)

Approved 15/05/2026, Yorkshire & The Humber - Sheffield Research Ethics Committee (NHS Blood and Transplant Blood Donor Centre, Holland Drive, Newcastle upon Tyne, NE2 4NQ, United Kingdom; +44 207 104 8010; sheffield.rec@hra.nhs.uk), ref: 26/YH/0086

Health condition(s) or problem(s) studiedAI enabled photograph assessment tool to improve liver organ use in the United Kingdom
InterventionCollection of follow up data from the NHSBT UK Transplant Registry, NHSBT statistician
Intervention typeOther
Primary outcome measure(s)
  1. Proportion of livers which were not transplanted measured using Data taken from the NHSBT TransplantPath platform at Between retrieval and transplantation/non-use
Key secondary outcome measure(s)

Measured using Data taken from the UK Transplant Registry at Between transplantation and 3 months post-transplant:
1. Proportion of recipients alive
2. Proportion of recipients with graft functioning at 3 months post-transplant
3. Proportion of recipients experiencing primary non-function
4. Proportion of recipients experiencing renal impairment
5. Proportion of recipients requiring reoperation due to haemorrhage
6. Proportion of recipients experiencing hepatic artery thrombosis
7. Proportion of recipients experiencing biliary tract leaks
8. Proportion of recipients experiencing biliary tract strictures requiring intervention
9. Proportion of recipients experiencing portal vein thrombosis
10. Proportion of recipients experiencing IVC/hepatic vein occlusion
11. Proportion of recipients experiencing post-operative wound sepsis
12. Proportion of recipients experiencing post-operative fungal infections
13. Mean number of treated rejection episodes since transplant

Completion date01/01/2029

Eligibility

Participant type(s)
Age groupAdult
SexAll
Target sample size at registration2040
Key inclusion criteria1. Donor family consent for research provided and no restrictions against commercial involvement, confirmed in TransplantPath
2. Donor liver with at least one back-bench image, confirmed in TransplantPath
3. Has assigned Donor ODT number, confirmed in TransplantPath
4. Donor type (DCD/DBD) provided, confirmed in TransplantPath
5. Liver image(s) passes OrQA image quality check, confirmed by the OrQA system
6. Liver image(s) passes OrQA liver/non-liver check, confirmed by the OrQA system
7. OrQA-L score completed by the OrQA system
Key exclusion criteria1. Living donor livers, confirmed in TransplantPath
2. Livers not offered through TransplantPath (e.g. Domino), confirmed in TransplantPath
Date of first enrolment01/08/2026
Date of final enrolment30/09/2028

Locations

Countries of recruitment

  • United Kingdom

Study participating centre

This is a decentralised trial and there are no participating centres/sites
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-
-
England

Results and Publications

Individual participant data (IPD) Intention to shareNo

Editorial Notes

19/05/2026: Study's existence confirmed by the National Institute for Health and Care Research (NIHR) (UK).