Clinical trial Recruiting at 1 site Interventional Ages 50 and up

Using Nexsphere-F to treat knee osteoarthritis pain

Official title: A Single Arm, Single Center, Open Label , Pilot Clinical Study to Evaluate the Efficacy and Safety of Transcatheter Arterial Micro Embolization (TAME) Using Nexsphere F in Patients With Knee Degenerative Osteoarthritis

Run by Next Biomedical Co., Ltd. · NCT05917028 · Data updated 2026-11-12

This study is testing a new treatment called Nexsphere-F to see if it can help relieve knee pain in people aged 50 and older who haven’t found relief from other treatments.

More Osteoarthritis trials

Quick facts

Study typeInterventional
Ages50 Years and up
SexAll
Enrollment20 (estimated)
SponsorNext Biomedical Co., Ltd.
Industry-sponsored
Locations1 site (Seoul, Seodaemun-gu)
StatusRecruiting
StartedOctober 23, 2023
Main results expectedDecember 2025
Study endsDecember 2025
Registry record updatedApril 2, 2025
Trial IDNCT05917028 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults over 50 with Kellgren-Lawrence grade 2 to 3 osteoarthritis and a VAS pain score exceeding 50mm.

Probably not a fit

Patients with infections, severe vascular disease, or those with a life expectancy of less than six months may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial evaluates the safety and effectiveness of Transcatheter Arterial Micro-Embolization (TAME) using Nexsphere-F in patients aged 50 and older with knee degenerative osteoarthritis. It targets individuals whose pain remains uncontrolled despite conventional treatments. The study is a single-arm, open-label pilot trial conducted at a single center, where participants will undergo TAME and have their pain assessed using various scoring systems before and after the procedure. Written consent is obtained prior to the procedure, and baseline evaluations include MRI and pain scoring.

Why it matters

Potential benefit: If successful, this treatment could provide significant pain relief for patients suffering from knee osteoarthritis who have not responded to standard therapies.

How similar studies have gone: While this approach is novel, similar studies exploring embolization techniques for pain management have shown promise, indicating potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Those who fall under Kellgren-Lawrence grade 2 to 3 according to the criteria in accordance with ACR guidelines and X-ray findings used within 12 months
* VAS score exceeding 50mm
* An adult male and female over 50 years of age
* Preservative therapy Glucosamine chondroitin sulfate/physiological therapy and rehabilitation exercises, and joint injections of hyaluronic acid for more than 12 weeks
* A person who agrees to maintain existing medication treatments during the clinical trial period but does not receive additional medication or new conservative treatments for knee osteoarthritis pain management.

Exclusion Criteria:

* A locally infected patient
* A person whose life expectancy is less than six months
* A person with symptoms of lower extremities that are considered secondary to atherosclerosis or arterial vascular disease (ex: claudication ischemic rest pain)
* A person diagnosed with rheumatism or infectious arthritis
* A person who has undergone knee arthroplasty
* A person who has not had knee microfracture surgery for more than 10 years
* INR 2.5 or less than 30,000 platelets
* Anaphylaxis-causing iodine allergy
* Patients with renal dysfunction or impaired renal function who have been diagnosed with less than 45 GFR (eGFR) within the last 60 days
* Those who have a taboo on MR videos
* Pregnant women
* Other cases where it is deemed inappropriate to participate in this clinical trial at the discretion of the researcher

Where it's running

  • Severance Hospital
    Seoul, Seodaemun-gu, South Korea
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.