Clinical trial Recruiting at 1 site Interventional Ages 40 and up

Comparing genicular artery embolization with steroid knee injections for osteoarthritis pain

Official title: Resorbable Embolization MicroSpheres for OsteoaRthritis Benefit

Run by North American Science Associates Ltd. · NCT06872567 · Data updated 2026-11-12

This trial will test whether genicular artery embolization (using Nexsphere-F) reduces knee osteoarthritis pain more than a standard corticosteroid knee injection.

Quick facts

Study typeInterventional
Ages40 Years and up
SexAll
Enrollment126 (estimated)
SponsorNorth American Science Associates Ltd.
Research network
Locations1 site (Charlottesville, Virginia)
StatusRecruiting
StartedOctober 1, 2025
Main results expectedJune 2026
Study endsDecember 2026
Registry record updatedNovember 24, 2025
Trial IDNCT06872567 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

People with localized knee osteoarthritis pain who are appropriate candidates for an arterial vascular access procedure and willing to comply with study visits are ideal candidates.

Probably not a fit

Patients who are allergic to implant materials, unable to undergo arterial access, or unwilling/unable to follow study requirements are unlikely to benefit from participation.

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

What this trial studies

This is a prospective, randomized, controlled trial comparing genicular artery embolization (GAE) using Nexsphere-F to intra-articular corticosteroid injection for people with localized knee osteoarthritis pain. Eligible participants must be suitable candidates for an arterial vascular access procedure and willing to follow study visits. Participants are randomized to receive either GAE or a steroid injection, with clinical follow-up to monitor pain, function, and safety outcomes over time. The lead site is the University of Virginia and the study is sponsored by North American Science Associates Ltd. with Next Biomedical Co., Ltd. as a collaborator.

Why it matters

Potential benefit: If successful, GAE could offer longer-lasting pain relief for knee osteoarthritis and reduce the need for repeat steroid injections or surgery.

How similar studies have gone: Small early studies and case series have reported promising pain relief with genicular artery embolization, but larger randomized data remain limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient has localized knee pain
* Must be an appropriate candidate for arterial vascular access procedure

Exclusion Criteria:

* Known sensitivity or allergy to implant materials
* Unable or unwilling to comply with study requirements

Where it's running

  • University of Virginia
    Charlottesville, Virginia, United States
    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.