Heat treatment for Post-Replacement knee pain put to the test
NCT ID NCT05473663
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a procedure called radiofrequency ablation can safely reduce chronic knee pain in people who still have pain at least a year after total knee replacement. Fourteen participants will either get the real procedure or a sham version, and researchers will check if they feel better after 3 months. The goal is to see if this treatment is worth offering more widely.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Radiofrequency ablation (a procedure using heat to deaden nerves around the knee)
- What this could lead to
- If it works, this could offer a non-surgical option for people with lingering knee pain after a knee replacement.
- What could go wrong
- This is a very small, early study with only 14 participants. The procedure may not provide lasting relief, and there are risks like infection or nerve damage.
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
-
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 14 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2022
- Expected to finish
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Sep 2026
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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18 years and older
- 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: 1. Eligible individuals over 18 years of age in general good health apart from their chronic knee pain 2. At least one year post-TKA 3. Report of chronic knee pain classified using a standard question about the presence of "pain, aching, or stiffness in the knee on most days for at least one month during the prior 6 months" 4. In an unacceptable symptom state classified using a validated question: "Think about all consequences of your arthroplasty in the last week. If you were to remain for the rest of your life as you were during the last week, would the current state be acceptable or unacceptable for you?" 5. Willingness to complete all the study procedures, including a daily pain NRS, AE, and medication usage questions via daily notification 6. Subjects must have read and understood the informed consent form (ICF), and must have signed and dated it prior to any study-related procedure being performed Exclusion Criteria: 1. Pregnant women, breastfeeding women, and women who are not post-menopausal (defined at 12 months with no menses without an alternative medical cause) or permanently surgically sterile (includes hysterectomy, bilateral salpingectomy, and bilateral oophorectomy) 2. Women who are not post-menopausal or permanently surgically sterile who are sexually active, and who are not willing to use birth control as outlined in Section 5.3.1 during the study period 3. Significant evidence of infection within the knee or radiographic evidence of prosthesis loosening as defined by the orthopedic surgeon 4. Individuals with pain exclusively located in the posterior knee, evaluated systematically using a validated Knee Pain Map 5. Individuals who do not achieve a 70% pain reduction following the initial prognostic block, consistent with clinical practice 6. Participation in a clinical research trial that included the receipt of an investigational product (IP) or any experimental therapeutic procedure within 30 days prior to the Screening Visit, or planned participation in any such trial 7. Use of anticoagulants and inability to withhold for three days prior to the study RFA procedure with clearance by the prescribing physician 8. Other conditions that, in the opinion of the Investigator, constitutes a risk or contraindication for participation in the study or that could interfere with the study objectives, conduct, or evaluation
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of Massachusetts Chan Medical School
Worcester, Massachusetts, 01655, United States
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