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Mitigation of Health Effects in Outdoor Workers by Reducing Exposure to Heat and Air Pollution (ISMED-CLIM OW)

2026. június 12. frissítette: Panayiotis Yiallouros, University of Cyprus

Innovative Solutions Across the MEDiterranean for Mitigation of Climate Change-related heaLth rIsks in Outdoor Workers

The goal of this clinical trial is to assess the effectiveness of an intervention (combination of behavioural recommendations and technical measures) in reducing personal exposure to heat and air pollution and related health effects in outdoor workers.

The main questions it aims to answer are:

  • Does the intervention (combination of behavioral recommendations for heat mitigation) reduce personal ambient temperature exposure, measured using a wearable device (iButton)?
  • Does the intervention (combination of behavioral recommendations for air pollution mitigation and use of indoor air cleaners) reduce indoor exposure to air pollution, measured using indoor air quality sensors (Purple Air)?
  • Does the intervention (combination of behavioral recommendations for heat mitigation) reduce physiological strain experienced by individuals working in hot environments, measured using the Heat Strain Score Index?

Researchers will compare measurements between outdoor workers carrying out their activities in the absence of intervention (control group), those carrying out their activities with behavioural recommendations (recommendation intervention group) and those carrying out their activities with both behavioural recommendations for heat mitigation and continuous use of indoor air cleaners in their house (heat and air pollution mitigation intervention group) to see if changes in temperature exposure and physiological strain are different between intervention groups.

Participants will:

  • Wear the wearable devise for continuous personal ambient temperature monitoring (ibutton) daily for a period of three months
  • Have their core temperature measured using an eCelsius medical capsule in three repeated assessments
  • Complete the Heat Strain Score Index questionnaire in three repeated assessments
  • Provide samples of urine, blood, saliva and hair for measurement of various biomarkers in three repeated assessments

A tanulmány áttekintése

Tanulmány típusa

Beavatkozó

Beiratkozás (Becsült)

102

Fázis

  • Nem alkalmazható

Kapcsolatok és helyek

Ez a rész a vizsgálatot végzők elérhetőségeit, valamint a vizsgálat lefolytatásának helyére vonatkozó információkat tartalmazza.

Tanulmányi kapcsolat

Tanulmányozza a kapcsolattartók biztonsági mentését

Tanulmányi helyek

      • Trikala, Görögország
        • Toborzás
        • University of Thessaly
        • Kapcsolatba lépni:
          • Andreas Flouris, Professor
          • Telefonszám: +30 24310 47072
          • E-mail: aflouris@uth.gr
      • León, Spanyolország
        • Toborzás
        • University of Léon
        • Kapcsolatba lépni:
          • Belén Carballo-Leyenda, Professor
          • Telefonszám: +34 987 293 023
          • E-mail: abcarl@unileon.es

Részvételi kritériumok

A kutatók olyan embereket keresnek, akik megfelelnek egy bizonyos leírásnak, az úgynevezett jogosultsági kritériumoknak. Néhány példa ezekre a kritériumokra a személy általános egészségi állapota vagy a korábbi kezelések.

Jogosultsági kritériumok

Tanulmányozható életkorok

  • Felnőtt
  • Idősebb felnőtt

Egészséges önkénteseket fogad

Igen

Leírás

Inclusion Criteria:

  • 18-65 years old
  • Municipality outdoor workers
  • Regularly working outdoors for al least 6 hours per day
  • Living in León (Spain) or Trikala (Greece)
  • Clinically healthy
  • No history of diabetes mellitus type 2 (DM2)
  • No history of arterial hypertension

Exclusion Criteria:

  • Currently smoking
  • Presence of any smoking residents in the household
  • Not residing at the household for at least 5 days a week
  • Planning to move from the current home within the next two months
  • No access to Wi-Fi or 4G/5G mobile phone
  • Severe chronic conditions (congestive heart failure, ischemic heart disease, significant valvular heart disease, DM2, inflammatory diseases, renal failure, or active cancer)
  • Drugs abuse
  • Alcohol abuse
  • Psychiatric disorders
  • Severe mental disability that interferes with answering questions or following instructions

Tanulási terv

Ez a rész a vizsgálati terv részleteit tartalmazza, beleértve a vizsgálat megtervezését és a vizsgálat mérését.

Hogyan készül a tanulmány?

Tervezési részletek

  • Elsődleges cél: Megelőzés
  • Kiosztás: Véletlenszerűsített
  • Beavatkozó modell: Párhuzamos hozzárendelés
  • Maszkolás: Nincs (Open Label)

Fegyverek és beavatkozások

Résztvevő csoport / kar
Beavatkozás / kezelés
Nincs beavatkozás: Control group
Subjects in this arm will receive no alerts for high temperatures nor recommendations for mitigation of heat-related health effects.
Kísérleti: Heat intervention - Personal Alerts and Specific Recommendations
Subjects in this group will receive timely personal alerts for high temperatures and specific recommendations to reduce exposure to heat and mitigation of heat-related health effects in written and animated format through mobile phones, mobile applications and online tools.
The participants in this group of intervention will receive timely personal alerts for high temperatures and specific recommendations to reduce exposure to heat by changing patterns of time spent and physical activity performed outdoors, regulating indoor temperature using fans and/or air conditioning devices, as well as recommendations for mitigation of heat-related health effects (hydration, body cooling) in written and animated format, through mobile phones, web application and online tools to be developed by the project research team
Más nevek:
  • Behavioral intervention to reduce exposure to heat
Kísérleti: Heat and air pollution intervention - Group Alerts, Recommendations and Air Cleaners
Subjects in this group will receive alerts and recommendations as in group "Heat intervention" and in addition, continuously use of air cleaners with HEPA filter for removing PM from indoor air in their residences and workplaces to provide evidence for health benefits.
The participants in this intervention group will receive alerts and recommendations as in group "Heat intervention" and, in addition, continuously use air cleaners with HEPA filters for removing PM from indoor air in their residences and workplaces.
Más nevek:
  • Behavioral intervention to reduce exposure to heat and air-pollution

Mit mér a tanulmány?

Elsődleges eredményintézkedések

Eredménymérő
Intézkedés leírása
Időkeret
Heat Strain Score Index
Időkeret: The HSSI will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
The Heat Strain Score Index (HSSI) is a questionnaire-based assessment tool used to assess the risk of heat strain on individuals exposed to hot environments, using a questionnaire. It integrates multiple factors, such as environmental conditions, work intensity, clothing, and physiological responses, to estimate the likelihood of heat stress affecting a person.
The HSSI will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).

Másodlagos eredményintézkedések

Eredménymérő
Intézkedés leírása
Időkeret
Heart Rate
Időkeret: Heart Rate will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Heart rate will be measured using ECG.
Heart Rate will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
The personal ambient temperature profile of all participants
Időkeret: Daily measurements - for the whole duration of follow-up (2 months)
Personal exposures of participants will be monitored continuously during the two observation months with wearable sensors to be always worn and assess personal exposure to ambient (indoor and outdoor) temperature (iButton).
Daily measurements - for the whole duration of follow-up (2 months)
Serum Urea Levels
Időkeret: Serum levels of urea will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum levels of urea (mg/dL), as a marker of renal function, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum levels of urea will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum Creatinine Levels
Időkeret: Serum levels of creatinine will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum levels of creatinine (mg/dL), as a marker of renal function, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum levels of creatinine will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum Sodium levels
Időkeret: Serum levels of sodium will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum levels of sodium (mmol/L), as a marker of hydration, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum levels of sodium will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum Osmolality
Időkeret: Serum osmolality will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum osmolality (mOsm/kg), as a marker of hydration, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum osmolality will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine Creatinine Levels
Időkeret: Urine levels of creatinine will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine levels of creatinine (mg/dL), as a marker of renal function, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine levels of creatinine will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine Sodium levels
Időkeret: Urine levels of sodium will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine levels of sodium (mmol/L), as a marker of hydration, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine levels of sodium will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine Potassium levels
Időkeret: Urine levels of potassium will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine levels of potassium (mmol/L), as a marker of hydration, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine levels of potassium will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine Osmolality
Időkeret: Urine osmolality will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine osmolality (mOsm/kg), as a marker of hydration, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Urine osmolality will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Hair cortisol levels
Időkeret: Hair cortisol levels will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Hair cortisol levels (pg/mg), as a marker of stress, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Hair cortisol levels will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Saliva alpha-amylase levels
Időkeret: Saliva levels of alpha-amylase will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Saliva levels of alpha-amylase (U/mL), as a marker of stress, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Saliva levels of alpha-amylase will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Pittsburgh Sleep Quality Index (PSQI)
Időkeret: The PSQI will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
The Pittsburgh Sleep Quality Index (PSQI) is a self-report questionnaire that assesses sleep quality over a one-month time interval. The PSQI is commonly used in both clinical and research settings to evaluate various aspects of sleep. It is a valuable tool for assessing sleep quality as it captures multiple dimensions of sleep, including both subjective experiences and objective parameters. Higher scores indicate poorer sleep quality, with a score greater than 5 suggesting significant sleep difficulties.
The PSQI will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Hamilton Anxiety Rating Scale
Időkeret: The Hamilton Anxiety Rating Scale will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
The Hamilton Anxiety Rating Scale will be carried out to assess the severity of a person's anxiety. The Hamilton Anxiety Rating Scale ranges from 0 to 56, where higher scores indicate greater anxiety severity. The scoring is divided into severity tiers: <17 (mild), 18-24 (mild to moderate), and 25-56 (moderate to severe). The scale consists of 14 items, each rated from 0 to 4 points. It evaluates both psychic anxiety (e.g., tension, fears, mood) and somatic anxiety (physical complaints).
The Hamilton Anxiety Rating Scale will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Systolic/Diastolic Blood Pressure
Időkeret: Systolic/Diastolic blood pressure will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Measurements of Systolic/Diastolic Blood Pressure will be recorded.
Systolic/Diastolic blood pressure will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Heart Rate Variability
Időkeret: The heart rate variability will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Heart rate variability will be measured using ECG.
The heart rate variability will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum C-reactive Protein Levels
Időkeret: Serum levels of C-reactive protein will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum levels of C-reactive protein (mg/L), as a marker of systemic inflammation, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum levels of C-reactive protein will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum Potassium Levels
Időkeret: Serum levels of potassium will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum levels of potassium (mmol/L), as a marker of hydration, will be measured from each participant at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Serum levels of potassium will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
Wet-bulb globe temperature (WGBT)
Időkeret: Daily measurements - for the whole duration of follow-up (2 months).
Wet-bulb globe temperature, will be assessed as a thermal stress indicator.
Daily measurements - for the whole duration of follow-up (2 months).
Humidity
Időkeret: Daily measurements - for the whole duration of follow-up (2 months).
Humidity will be measured using iButton.
Daily measurements - for the whole duration of follow-up (2 months).
Indoor concentration levels of Particulate Matter 2.5 (PM 2.5) at residence
Időkeret: Daily measurements - for the whole duration of follow-up (2 months).
Indoor concentration levels of PM2.5 (micrograms per cubic meter of air) at participants' residences will be measured continuously indoors using commercial lightweight sensors (Alpha sense).
Daily measurements - for the whole duration of follow-up (2 months).
Indoor concentration levels of Particulate Matter 10 (PM 10) at residence
Időkeret: Daily measurements - for the whole duration of follow-up (2 months).
Indoor concentration levels of PM10 (micrograms per cubic meter of air) at participants' residences will be measured continuously indoors using commercial lightweight sensors (Alpha sense).
Daily measurements - for the whole duration of follow-up (2 months).
Number of daily steps
Időkeret: Daily measurements - for the whole duration of follow-up (2 months)
Number of daily steps will be measured throughout the day by a wearable device (wristband).
Daily measurements - for the whole duration of follow-up (2 months)
Daily heart rate
Időkeret: Daily measurements - for the whole duration of follow-up (2 months) .
Heart rate measurements taken throughout the day by a wearable device (wristband).
Daily measurements - for the whole duration of follow-up (2 months) .
Sleep-wake time
Időkeret: Daily measurements - for the whole duration of follow-up (2 months)
Sleep-wake time (minutes) will be estimated based on measurements of movement and heart rate obtained from a wearable device (wristband)
Daily measurements - for the whole duration of follow-up (2 months)
Sleep-Wake Time self-reported evaluation
Időkeret: The sleep-wake self-reported evaluation will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).
The sleep-wake time (minutes) self-reported evaluation will be carried out using a predefined sleep diary which will be completed by the participant on the morning after he/she wakes up. Each assessment of sleep-wake time self-reported evaluation will be carried out for a whole week.
The sleep-wake self-reported evaluation will be assessed at baseline, middle (after 1 month), and at end of observation period (after 2 months).

Együttműködők és nyomozók

Itt találhatja meg a tanulmányban érintett személyeket és szervezeteket.

Nyomozók

  • Kutatásvezető: Panayiotis Yiallouros, Professor, University of Cyprus

Tanulmányi rekorddátumok

Ezek a dátumok nyomon követik a ClinicalTrials.gov webhelyre benyújtott vizsgálati rekordok és összefoglaló eredmények benyújtásának folyamatát. A vizsgálati feljegyzéseket és a jelentett eredményeket a Nemzeti Orvostudományi Könyvtár (NLM) felülvizsgálja, hogy megbizonyosodjon arról, hogy megfelelnek-e az adott minőség-ellenőrzési szabványoknak, mielőtt közzéteszik őket a nyilvános weboldalon.

Tanulmány főbb dátumok

Tanulmány kezdete (Tényleges)

2026. május 1.

Elsődleges befejezés (Becsült)

2027. július 31.

A tanulmány befejezése (Becsült)

2027. július 31.

Tanulmányi regisztráció dátumai

Először benyújtva

2026. június 3.

Először nyújtották be, amely megfelel a minőségbiztosítási kritériumoknak

2026. június 3.

Első közzététel (Tényleges)

2026. június 9.

Tanulmányi rekordok frissítései

Utolsó frissítés közzétéve (Tényleges)

2026. június 16.

Az utolsó frissítés elküldve, amely megfelel a minőségbiztosítási kritériumoknak

2026. június 12.

Utolsó ellenőrzés

2026. június 1.

Több információ

A tanulmányhoz kapcsolódó kifejezések

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