Ask to take part

Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

Dr Anjali Shah
+44 (0)1865 613460
anjali.shah@ndorms.ox.ac.uk


Prof Andrew Price
+44 (0)1865 223421
andrew.price@ndorms.ox.ac.uk


Dr Raman Uberoi
+44 (0)1865 221497
raman.uberoi@ouh.nhs.uk


More information about this study, what is involved and how to take part can be found on the study website.

Study Location:

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Be Part of Research - Trial Details - Genicular embolisation for knee osteoarthritis

Genicular embolisation for knee osteoarthritis

Recruiting

Open to: All Genders

Age: Adult

Medical Conditions

Knee osteoarthritis


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


This study is looking at whether a new treatment called genicular artery embolisation (GAE) could be a helpful option for people with ongoing pain from knee osteoarthritis. Knee osteoarthritis is a painful condition. In the early stages, patients often benefit from lifestyle changes and exercises. When the knee becomes very damaged, they may require a knee replacement surgery to alleviate the pain and improve symptoms. In between the early and advanced stages, pain can become a major problem. A new treatment has been developed which aims to relieve pain in the knee by blocking (embolisation) small extra blood vessels around the knee. Early studies seem to show some benefit, but a larger study is needed to see if the treatment is effective at reducing pain. If it works, it could help a lot of people with knee osteoarthritis who are in a “treatment gap” between simple care and complex surgery.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

31 Jul 2025 30 Jun 2026

Participants will be randomly assigned to either receive the active treatment (GAE), which uses microbeads to block off extra blood vessels in the knee, or a very similar placebo where only salt water is injected. Participants will not be aware what treatment they are undergoing. Participants will also have one or two MRI scans and will be asked to complete questionnaires assessing pain and function up to 12 months later.


Adult patients with diagnosed painful knee osteoarthritis who have presented to secondary (hospital) care and previously tried existing treatments

You can take part if:



You may not be able to take part if:


1. Patient previously participated in the GEKO trial (only one knee can be entered into the trial)2. Received a steroid injection in the study knee in the past 6 weeks, or is scheduled to have a steroid injection prior to the study procedure3. Infection or malignancy around the knee4. Inflammatory arthropathy5. History of acute injury to the knee (within 6 months)6. Surgery to the involved knee in the past 6 months7. Previous knee replacement (partial or total) in either limb8. Severe allergic reaction to radiological contrast media, including iodine-based CT-contrast or Gadolinium-based MRI contrast9. Objection (religious or personal) to the use of medical materials made from pigs 10. Allergy to gelatine from pigs (which is within the micro-beads used in the intervention) 11. Known significant renal impairment12. Peripheral artery disease of the affected leg 13. Pregnant or lactating14. Hepatic impairment15. Clotting abnormality16. Osteonecrosis


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • North Bristol NHS Trust
    Southmead Hospital Southmead Road Westbury-on-trym
    Bristol
    BS10 5NB
  • Oxford University Hospitals NHS Foundation Trust
    John Radcliffe Hospital Headley Way Headington
    Oxford
    OX3 9DU
  • University Hospitals Coventry and Warwickshire NHS Trust
    Walsgrave General Hospital Clifford Bridge Road
    Coventry
    CV2 2DX
  • Cambridge University Hospitals NHS Foundation Trust
    Cambridge Biomedical Campus Hills Road
    Cambridge
    CB2 0QQ
  • Cardiff & Vale University Lhb
    Woodland House Maes-y-coed Road
    Cardiff
    CF14 4HH
  • Royal Cornwall Hospitals NHS Trust
    Royal Cornwall Hospital Treliske
    Truro
    TR1 3LJ
  • Imperial College Healthcare NHS Trust
    The Bays St Marys Hospital South Wharf Road
    London
    W2 1BL
  • Barts Health NHS Trust
    The Royal London Hospital 80 Newark Street
    London
    E1 2ES
  • Liverpool University Hospitals NHS Foundation Trust
    Royal Liverpool University Hospital Prescot Street
    Liverpool
    L7 8XP
  • University Hospitals Plymouth NHS Trust
    Derriford Hospital Derriford Road Derriford
    Plymouth
    PL6 8DH
  • Guy's & St Thomas Hospital
    Westminster Bridge Road
    London
    SE1 7EH
  • Hull University Teaching Hospitals NHS Trust
    Hull Royal Infirmary Anlaby Road
    Hull
    HU3 2JZ
  • Aneurin Bevan University Lhb
    Headquarters - St Cadoc's Hospital Lodge Road Caerleon
    Newport
    NP18 3XQ

Participants' knee pain may or may not improve following the procedure. With all medical procedures, there is a small risk of problems, which will be assessed by treating clinicians and discussed with participants.

Dr Anjali Shah
+44 (0)1865 613460
anjali.shah@ndorms.ox.ac.uk


Dr Raman Uberoi
+44 (0)1865 221497
raman.uberoi@ouh.nhs.uk


Prof Andrew Price
+44 (0)1865 223421
andrew.price@ndorms.ox.ac.uk



More information about this study, what is involved and how to take part can be found on the study website.


The study is sponsored by University of Oxford and funded by National Institute for Health and Care Research.





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Read full details for Trial ID: ISRCTN50216144

Or CPMS 68970

Last updated 14 July 2025

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