Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Kneipp cold-water hydrotherapy for people with Long COVID

Official title: Effects of Kneipp Hydrotherapy in Post-COVID-19 Patients: A Randomized Controlled Trial

Run by Eggensberger OHG · NCT07110714 · Data updated 2026-11-12

This randomized trial will test whether regular Kneipp cold-water hydrotherapy can improve quality of life for people with Post‑COVID Syndrome.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment30 (estimated)
SponsorEggensberger OHG
Industry-sponsored
Locations1 site (Füssen, Bavaria)
StatusRecruiting
StartedDecember 1, 2025
Main results expectedJanuary 31, 2027
Study endsOctober 31, 2027
Registry record updatedDecember 2, 2025
Trial IDNCT07110714 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are people diagnosed with Post‑COVID Syndrome (ICD‑10 U08.9) who have preserved basic function (Barthel Index >80), own a smartphone for HRV monitoring, can travel to Füssen, and have no contraindications to cold hydrotherapy.

Probably not a fit

Patients with severe cardiovascular, venous, or neurological conditions, those unable to attend the site, or those who already practice Kneipp regularly are unlikely to benefit from or be eligible for this intervention.

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

What this trial studies

This randomized controlled study in Füssen, Bavaria compares a program of cold-water Kneipp hydrotherapy plus usual care versus usual care alone in patients with Post‑COVID Syndrome. Participants undergo baseline questionnaires and heart rate variability monitoring via a smartphone app, then are randomized to receive repeated cold-water applications or no hydrotherapy. Primary outcomes focus on change in quality of life, with additional measures of autonomic function, microcirculation, and symptom burden over the intervention period. The protocol excludes patients with major cardiovascular, severe venous, or severe neurological contraindications and those with prior regular Kneipp practice.

Why it matters

Potential benefit: If successful, the intervention could reduce symptom burden and speed functional recovery, improving quality of life for people with Long COVID.

How similar studies have gone: Thermohydrotherapy and cold-stimulation therapies have shown physiological benefits for autonomic balance, circulation, and inflammation in other settings, but randomized evidence specifically in Post‑COVID Syndrome is limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
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

Where it's running

  • Eggensberger Ohg
    Füssen, Bavaria, Germany
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Rehabilitation program to reduce fatigue after COVID-19

    This study is testing a new rehabilitation program called COVIDEx to see if it can help people with Long COVID feel less tired compared to standard care.

    Recruiting London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's · London, Ontario · NCT06156176

  • Transcranial Direct Current Stimulation for Long COVID with Headaches and Chronic Pain

    This study tests whether applying mild brain stimulation (tDCS) can help people with long COVID who have headaches, migraines, and ongoing pain.

    Recruiting at 2 sites Fundación Universidad Católica de Valencia San Vicente Mártir · Paiporta, Valencia and 1 other locations · NCT05780450

  • How your daily body clock relates to breathing, activity, and nutrition after COVID-19

    This project tests whether morning, intermediate, or evening circadian types relate to respiratory muscle strength, physical activity, sleep, and eating habits in adults with post-COVID-19 syndrome.

    Recruiting Hacettepe University · Ankara, Altindağ · NCT07545499

  • Fluvoxamine for post-COVID fatigue and cognitive symptoms

    This study tests whether fluvoxamine can help reduce fatigue and brain-related symptoms after COVID-19 compared with a placebo in adults with long-COVID.

    Recruiting Phase 3 Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) · Amsterdam-Zuidoost · NCT07359482

  • Immunoadsorption blood filter for autoimmune long COVID

    We will test a blood-filter treatment called immunoadsorption in people with long COVID who have specific autoantibodies to see if their fatigue and daily functioning get better.

    Recruiting Phase 2 Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) · Amsterdam · NCT07316127

  • Magnetic brain stimulation for fatigue and brain fog in long COVID

    This trial will see if repetitive transcranial magnetic stimulation (rTMS) can reduce severe fatigue and improve concentration in adults with long COVID.

    Recruiting Amsterdam UMC, location VUmc · Amsterdam · NCT07278206

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.