Cold water splash: new study tests hydrotherapy for long COVID relief
NCT ID NCT07110714
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests if cold water therapy (Kneipp hydrotherapy) can improve quality of life for people with Long COVID. Thirty adults with a Post-COVID diagnosis will either receive the cold water treatment or continue usual care. Researchers will measure changes in fatigue, sleep, and overall well-being to see if this simple approach offers real benefits.
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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 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2025
- Expected to finish
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Oct 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
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: * Diagnosis of Post-COVID Syndrome (ICD-10 code: U08.9) * Barthel-Index \>80 * Owning a smartphone to receive digital questionnaires and to use the measurement app for heart rate variability * Written informed consent Exclusion Criteria: * Existing contraindications for Kneipp hydrotherapy like severe cardiovascular diseases (e.g., decompensated heart failure, unstable angina pectoris, acute myocardial infarction), severe venous diseases (e.g., acute deep vein thrombosis of the leg), severe neurological diseases (e.g., uncontrolled epilepsy) * Prior regular practice of Kneipp applications
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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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Eggensberger Ohg
RECRUITINGFüssen, Bavaria, D-87629, Germany
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Ear-Zapping device may help long COVID patients recover energy
- Can magnetic pulses to the brain reverse Long-COVID smell loss, tinnitus, and fatigue?
- Can our genes and gut explain long COVID?
- Brain fog after COVID: can a mental workout restore focus?
- Will a digital boost keep Post-COVID recovery on track?
- Can tape or therapy soothe Post-COVID back pain?