Spa therapy for knee pain: new study tests if heat and water help movement
NCT ID NCT07534189
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study will follow 300 adults aged 50 and older with knee osteoarthritis who are scheduled for a 3-week thermal spa treatment. Researchers will use wearable sensors to measure knee movement fluidity before and after the spa program, and at 3 and 12 months later. They will also track pain, physical function, and quality of life to see if the spa therapy provides lasting benefits.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- thermal spa treatment
- What this could lead to
- If it works, this could provide evidence that spa therapy is an effective non-drug option for improving knee movement and reducing pain in osteoarthritis.
- What could go wrong
- This is an observational study, not a controlled trial, so results may be influenced by other factors. The study is not yet recruiting, and the primary outcome is a movement measure, not a direct symptom improvement.
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 300 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jul 2026
An estimate. Start dates often move.
- Expected to finish
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Jul 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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50 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: * Adults aged 50 years or older * Diagnosis of knee osteoarthritis affecting at least one knee, with radiographic Kellgren-Lawrence grade ≥ 2 confirmed by an X-ray performed within the past 3 years * Average knee pain intensity \> 30 mm on a 100-mm Visual Analog Scale (VAS) during the month prior to inclusion * Participants scheduled to undergo a 3-week thermal spa treatment at the Balaruc-les-Bains thermal center Exclusion Criteria: * Use of systemic or injectable corticosteroids within 1 month prior to inclusion * Intra-articular injection of hyaluronic acid or platelet-rich plasma (PRP) within the 3 months prior to inclusion * Active inflammatory joint disease (e.g., rheumatoid arthritis, spondyloarthritis, or crystal-induced arthropathies) * Current major depressive episode or psychotic disorders * Thermal spa treatment within the previous 6 months * Inability to read or write * Inability to complete follow-up for the entire study period (e.g., planned relocation, travel, professional commitments, or residence located more than 100 km from the study site) * Lack of informed consent * Pregnant or breastfeeding women * Individuals under legal protection (guardianship or curatorship) * Not affiliated with a national health insurance system * Individuals under judicial protection (safeguard of justice) * Participation in another clinical study with an ongoing exclusion period
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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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Centre thermal de Balaruc les Bains
Balaruc-les-Bains, France
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