New procedure aims to ease knee arthritis pain by blocking blood flow
NCT ID NCT07361198
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a minimally invasive treatment for chronic knee pain from osteoarthritis or after knee replacement. Doctors guide a thin tube to knee arteries and inject a temporary agent to reduce blood flow to inflamed tissue. The goal is to see if this procedure safely reduces pain and improves knee function over 24 months. The study enrolls 20 adults aged 40-80 who haven't gotten enough relief from standard treatments.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 20 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2026
- Expected to finish
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Dec 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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40 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adults aged 40 to 80 years * Clinical symptoms consistent with chronic knee pain * Radiographically confirmed knee osteoarthritis of Kellgren-Lawrence grade II-IV or persistent knee pain following total knee arthroplasty * Insufficient pain relief after standard conservative treatment (e.g., pharmacological therapy, physical therapy, or injections) * Ability to understand the study procedures and provide written informed consent \_ Willingness and ability to comply with the study procedures and follow-up schedule Exclusion Criteria: * Active local or systemic infection * Known coagulation disorders or ongoing anticoagulation that cannot be safely interrupted * Significant peripheral arterial disease affecting the lower limbs * Known allergy or contraindication to iodinated contrast agents * Severe renal impairment * History of fibromyalgia or other generalized chronic pain syndromes that may confound pain assessment * Pregnancy or breastfeeding
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Masarykova nemocnice v Ústí nad Labem
RECRUITINGÚstí nad Labem, 40011, Czechia
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a smaller cut in robotic knee surgery mean less pain and faster healing?
- Blocking knee blood vessels may offer new pain relief for severe osteoarthritis
- One shot, one year: could a single injection ease knee arthritis pain?
- Could a pinch of radiation ease arthritis pain?