Clinical trial Recruiting at 2 sites Interventional Ages 18 to 65

Psycho-physiological profiling of people with low versus high heat resilience

Official title: Physiological Phenotyping

Run by University of Thessaly · NCT07510061 · Data updated 2026-11-12

This project will test whether controlled heat and UV exposures plus physiological and psychological measurements can identify healthy adults who are more or less resilient to heat.

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Quick facts

Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment80 (estimated)
SponsorUniversity of Thessaly
Academic / other
Drugs / interventionsradiation
Locations2 sites (Copenhagen and 1 other locations)
StatusRecruiting
StartedNovember 1, 2025
Main results expectedApril 30, 2027
Study endsApril 30, 2027
Registry record updatedApril 3, 2026
Trial IDNCT07510061 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal participants are healthy adults aged 18–65 living in Denmark or Greece who can undergo controlled heat exposure, provide blood, urine and optional skin biopsy samples, have Fitzpatrick skin type I–IV, and have not had recent heat acclimatization or extensive sun exposure.

Probably not a fit

People with cardiovascular, metabolic, neurological, or dermatological disease, a history of heat-related illness, pregnancy or breastfeeding, use of medications affecting thermoregulation, smokers, or those outside the 18–65 age range are excluded and unlikely to benefit from participation.

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

What this trial studies

The project combines controlled laboratory heat and ultraviolet exposures with behavioral and physiological measurements to profile heat tolerance in adults from northern and southern Europe. Participants will complete heat-exposure and light-exercise protocols while researchers collect blood, urine, and optional skin biopsy samples and record cardiovascular, thermoregulatory, and psychological responses. Data from Copenhagen and Trikala sites will be integrated and analyzed with machine-learning algorithms to derive predictive signatures of heat vulnerability. Field investigations in ecological settings will complement lab findings to improve real-world applicability and support development of personalized alert and advisory tools.

Why it matters

Potential benefit: If successful, this work could enable personalized warnings and guidance that reduce heat-related illness and decrease strain on healthcare services.

How similar studies have gone: Prior laboratory and epidemiological research has linked physiological and behavioral factors to heat vulnerability, but combining controlled exposures across climates with machine-learning for personalized alerts is largely novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Study Population

Healthy adult volunteers residing in Denmark (Northern Europe) or Greece (Southern Europe).

Inclusion Criteria

* Age 18-65 years (or your protocol-specific age range)
* Healthy as determined by medical history screening questionnaire
* Able to provide written informed consent
* Able to complete heat exposure and light exercise protocol
* No heat acclimatization or extensive sun exposure in the previous 4 weeks
* Fitzpatrick skin type I-IV (if applicable for UV testing)
* Willing to undergo blood sampling, urine collection, and skin biopsy

Exclusion Criteria

* History of cardiovascular, metabolic, neurological, or dermatological disease
* History of heat-related illness (e.g., heat stroke)
* Use of medications affecting thermoregulation or cardiovascular function
* Smoking or substance abuse
* Pregnancy or breastfeeding
* Abnormal ECG or uncontrolled hypertension
* Recent severe sunburn or UV treatment
* Contraindications to skin biopsy
* Inability to tolerate heat exposure during screening

Where it's running

  • Københavns Universitet
    Copenhagen, Denmark
    Recruiting
  • Department of Physical Education and Sport Science
    Trikala, Thessaly, Greece
    Recruiting

Study contacts

  • Principal investigator: Andreas D Flouris, PhD — 1FAME Laboratory, Department of Exercise Science, University of Thessaly, Trikala, Greece
  • Study coordinator: Maria Vliora, PhD
  • Email: mvliora@gmail.com
  • Phone: 6979642540

Similar studies

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

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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.