Heat StressNCT07864103
Efficacy of Electric Fans in Children During Heat Waves
A study testing Simulated exposure to indoor overheating without fans and Simulated exposure to indoor overheating with fans in people with Heat Stress and Physiological Stress, run by University of Ottawa at 1 site in Canada.
Trial summary
Extreme heat exposure is an escalating global public health concern, with climate change driving increases in the frequency, duration, and intensity of heat events. Projections indicate substantial increases in heat-related morbidity and mortality in the coming decades, including among children and youth, who are… Read more about this study
- Who is it for?
- Ages 9 to 25 yearsHealthy volunteers can take part
- Conditions the study is for
- Heat Stress, Physiological Stress, Child Development
- What is being tested?
- Simulated exposure to indoor overheating without fans and Simulated exposure to indoor overheating with fans
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- 1 siteCanada
- Study dates
- 2 Oct 2026to 30 Jun 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 9 to 25 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- Participants must be healthy males or females within the specified age ranges (9-12 years, 13-16 years, or 20-25 years).
- All participants must be habitually active, defined as participation in regular physical activity at least three times per week for a minimum of 20 minutes per session over the previous six months.
- Participants must be able to understand and communicate in English or French.
- For participants under 18 years of age, written parental or guardian consent and participant assent will be required prior to participation.
Who cannot join
- Individuals will be excluded from participation if they have any acute illness at the time of testing (e.g., cold, flu, or infection), or a history of chronic medical conditions that may affect thermoregulation, cardiovascular function, or exercise capacity, including but not limited to cardiovascular, metabolic, respiratory, or neurological disorders. Individuals taking medications known to influence thermoregulation, hydration status, or cardiovascular responses will also be excluded.
- Participants with a history of heat-related illness (e.g., heat exhaustion or heat stroke) will not be eligible.
- Individuals with digestive abnormalities or gastrointestinal conditions that may contraindicate ingestion of a telemetry pill will also be excluded.
- Any individual who, in the opinion of the investigators, may be at increased risk or unable to safely complete the study procedures will be excluded.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Canada1 site, 1 recruiting
- Recruiting
University of Ottawa
Ottawa, Ontario, K1N 6N5
Glen P Kenny, 613-562-5800 ext. 4282, gkenny@uottawa.ca
About this study
Official title: Effectiveness of Heat Mitigation Strategies in Mitigating Increases in Physiological Strain in Children and Youth Exposed to Indoor Overheating
Extreme heat exposure is an escalating global public health concern, with climate change driving increases in the frequency, duration, and intensity of heat events. Projections indicate substantial increases in heat-related morbidity and mortality in the coming decades, including among children and youth, who are increasingly recognized as a physiologically vulnerable population. The purpose of this project is to evaluate the effectiveness of commonly used heat-mitigation strategies, specifically midday access daylong electric fan use, in reducing physiological strain and maintaining cognitive function, perceptual comfort, and psychological well-being in children and youth exposed to prolonged indoor heat. The study also aims to determine whether these strategies provide comparable protection in children and youth relative to young adults. Participants will complete four sessions under the same environmental conditions (31°C and 36°C), with each temperature completed twice: once with continuous electric fan use and once without fan use. The four sessions therefore consist of: (1) 31°C without fan use; (2) 31°C with fan use; (3) 36°C without fan use; and (4) 36°C with fan use.
- Conditions
- Heat Stress, Physiological Stress, Child Development
- Being tested
- Simulated exposure to indoor overheating without fans, Simulated exposure to indoor overheating with fans
- Medical subject headings
- Heat Stress Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Simulated exposure to indoor overheating without fansOther
Children and young adults exposed to a 6-hour simulated heat exposure without fans.
Simulated exposure to indoor overheating with fansOther
Children and young adults exposed to a 6-hour simulated heat exposure without fans.
| Study group | Role | What they receive |
|---|---|---|
| Warm indoor environment of 31°C without fans | Experimental | Participants exposed daylong (6 hours) to an indoor temperature maintained at 31°C and 45% relative humidity without fan exposure. Receives: Other: Simulated exposure to indoor overheating without fans |
| Warm indoor environment of 31°C with fans | Experimental | Participants exposed daylong (6 hours) to an indoor temperature maintained at 31°C and 45% relative humidity with fan exposure. Receives: Other: Simulated exposure to indoor overheating with fans |
| Hot indoor environment of 36°C without fans | Experimental | Participants exposed daylong (6 hours) to an indoor temperature maintained at 36°C and 45% relative humidity with fan exposure. Receives: Other: Simulated exposure to indoor overheating without fans |
| Hot indoor environment of 36°C with fans | Experimental | Participants exposed daylong (6 hours) to an indoor temperature maintained at 36°C and 45% relative humidity with fan exposure. Receives: Other: Simulated exposure to indoor overheating with fans |
What is being measured
The primary outcome is the main question the study is designed to answer.
Core temperature (Peak) during daylong exposure to indoor overheating
Peak core (indexed by visceral temperature) temperature (15 min average) during exposure. Visceral temperature is measured continuously throughout the 6 hour exposure to the simulated indoor overheating.
Measured: End of 6 hour daylong exposure
Secondary outcomes (28)
Profiles of Mood States (POMS) during daylong exposure to indoor overheating
Potential changes in mood (7 subscales of mood: tension, anger, depression, fatigue, confusion, vigor and esteem related affect). The POMS-40 is a validated, self-administered questionnaire that examines seven distinct aspects of mood state across two positive subscales (Esteem-Related Affect, and Vigor) and five negative subscales (Fatigue, Tension, Confusion, Anger, and Depression), which are described across 40 distinct adjectives. For each individual item, participants are asked to describe "how you feel right now" by responding using a 5-point Likert scale (0 = "Not at all", 1 = "A little", 2 = "Moderately", 3 = "Quite a lot", or 4 = "Extremely"). The values of items associated with a specific subscale (e.g., Fatigue) are summed to calculate its score.
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Environmental Symptoms Questionnaire (ESQ) during daylong exposure to indoor overheating
Self-reported environmental reactions and medical symptomatology associated with prolonged heat exposure. The ESQ-IV is a validated 68-item, self-administered questionnaire that has been used successfully in identifying symptomatology during exposure to a wide variety of environmental conditions, including heat exposure. Participants are asked to assess and described "how you have been feeling today" by responding to each item using a 6-point Likert scale (0 = "Not at all", 1 = "Slight", 2 = "Somewhat", 3 = "Moderate", 4 = "Quite a bit", or 5 = "Extreme"). Total Symptom Score is calculated from this data by taking the sum of the intensity ratings from all 68 individual items using reverse scores for the three positive items from the list ("I Felt Good", "I Felt Alert", and "I Felt Wide Awake").
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Perceived exertion scale during daylong exposure to indoor temperature limit
Perceived exertional assessed via an ordinal scale ("How hard are you working?") ranging from "no exertional at all" to "maximal exertion"
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Activity levels (total steps taken) during daylong exposure to indoor overheating
Activity levels, quantified by number of steps taken per hour and totaled for each 6 hour exposure, assessed via a wearable accelerometer worn on the wrist and hip.
Measured: End of 6 hour daylong exposure
Feel good scale during daylong exposure to indoor overheating
Feel good scale assessed via an ordinal scale (How good do you feel?) ranging from "very good" to "very bad" (midpoint: neutral)
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Thirst sensation scale during daylong exposure to indoor overheating
Thirst sensation assessed via an ordinal scale ranging from very, very thirsty to not thirsty at all.
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Thermal comfort scale during daylong exposure to indoor overheating
Thermal comfort assessed via an ordinal scale ("How comfortable does your body temperature feel?") ranging from "very uncomfortable" to "comfortable".
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Thermal sensation 2 scale during daylong exposure to indoor overheating
Thermal sensation assessed via an ordinal scale ("How do you feel?") ranging from "hot" to "cold" (midpoint: neutral)
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Thermal sensation scale during daylong exposure to indoor overheating
Thermal sensation assessed via an ordinal scale (How hot do you feel?) ranging from "extremely hot" to "neutral".
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Fluid loss during daylong exposure to indoor overheating
Fluid loss calculated as the change in body mass during each exposure presented as a percentage of baseline body mass (corrected for food consumption).
Measured: At end of 6 hour daylong exposure
Fluid consumption during daylong exposure to indoor overheating
Average hourly fluid consumption calculated by weighing participant water intake at the start and end of each hour of exposure (normalized to the exposure duration).
Measured: At end of 6 hour daylong exposure
Hydration status during daylong exposure to indoor overheating
Hydration status measured via assessing the urine specific gravity of a urine sample.
Measured: At the start (hour 0) and end of 6 hour daylong exposure
BTrackS Balance Assessment during daylong exposure to indoor overheating (postural stability)
To assess postural stability, participants will be asked to stand on a BTracks force plate with their feet spread out to shoulder width, hand on their hips and eyes closed. The assessment will comprise of four trials (one practice trial) lasting 20 seconds in length and 20 seconds between trials. Center of pressure (COP) vector data along vertical (y) and horizontal (x) axes will be summed for the total path excursion length (cm) during each trial
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Executive function during daylong exposure to indoor overheating (cognitive function).
Participants will be provided with a tablet device with the Sway Medical testing platform for the assessment of executive function. Participants will complete the Cued Stroop test, in which they are presented a sequence of congruent, neutral and incongruent color-word tasks.
Measured: At the start (hour 0) and end of 6 hour daylong exposure
CDC 4-Stage Balance Test during daylong exposure to indoor overheating (postural stability).
To assess postural stability, participants hold a tablet to their chest, then auditory cues guide participants through four consecutive stances, feet side by side, instep of one foot touching the big toe of the other foot, tandem stand with one foot in front of the other, heel touching toe, and stand on one foot. The balance assessment will be evaluated based on movement detected by an accelerometer integrated into the hardware of the tablet device (Sway Medical Inc).
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Memory recall during daylong exposure to indoor overheating (cognitive function).
Participants will be provided with a tablet device with the Sway Medical testing platform for the assessment of memory recall. Participants complete both a delayed recall test and a working memory test.
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Impulse control during daylong exposure to indoor overheating (cognitive function).
Participants will be provided with a tablet device with the Sway Medical testing platform for the assessment of impulse control. Participants will be asked to respond to both "go" and "no-go" visual cues. In response to the "go" cue, participants will initiate a movement of the device.
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Reaction time during daylong exposure to indoor overheating (cognitive function).
Participants will be provided with a tablet device with the Sway Medical testing platform for the assessment of reaction time. Participants will be asked to initiate a movement of the device in response to a visual cue.
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Diastolic blood pressure during daylong exposure to indoor overheating.
Diastolic blood pressure measured in triplicate via automated oscillometry (~60 seconds between measures).
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Systolic blood pressure during daylong exposure to indoor overheating
Systolic blood pressure measured in triplicate via automated oscillometry (~60 seconds between measures).
Measured: At the start (hour 0) and end of 6 hour daylong exposure
Heart rate end of daylong exposure to indoor overheating
Heart rate measured at hour 6 of exposure to indoor overheating (15-min average).
Measured: End of 6 hour daylong exposure
Heart rate (AUC) during daylong exposure to indoor overheating
Areas under the curve (AUC) of heart rate during the 6 hour exposure to the simulate indoor overheating.
Measured: End of 6 hour daylong exposure
Heat rate (Peak) during daylong exposure to indoor overheating
Peak heart rate (15 min average) during exposure. Heart rate is measured continuously throughout the 6 hour exposure to the simulated indoor overheating.
Measured: End of 6 hour daylong exposure
Mean skin temperature end of daylong exposure to indoor overheating
Mean skin temperature measured over 7 body regions at hour 6 of exposure to indoor overheating (15-min average).
Measured: End of 6 hour daylong exposure
Mean skin temperature (AUC) during daylong exposure to indoor overheating
Areas under the curve (AUC) of mean skin temperature as calculated over 7 body regions during the 6 hour exposure to the simulate indoor overheating.
Measured: End of 6 hour daylong exposure
Mean skin temperature (Peak) during daylong exposure to indoor overheating
Peak mean skin temperature (15 min average) during exposure. Mean skin temperature as calculated from skin temperature measured across 7 body regions is measured continuously throughout the 6 hour exposure to the simulated indoor overheating.
Measured: End of 6 hour daylong exposure
Core temperature end of daylong exposure to indoor overheating
Visceral temperature measured at hour 6 of exposure to indoor overheating (15-min average).
Measured: End of 6 hour daylong exposure
Core temperature (AUC) during daylong exposure to indoor overheating
Areas under the curve (AUC) of visceral temperature during the 6 hour exposure to the simulate indoor overheating.
Measured: End of 6 hour daylong exposure
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Oct 2026
- Study start2 Oct 2026 (estimated)
- Primary completion30 Apr 2027 (estimated)
- Study completion30 Jun 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Heat StressStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 60 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Ottawa
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Glen P. Kenny, University of Ottawa
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07864103
- Sponsor's protocol ID
- HEPRU-2026-10-C
- Status last verified
- Oct 2026
- First submitted
- 1 Oct 2026
- Last updated
- 7 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 7 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effectiveness of Heat Mitigation Strategies in Mitigating Increases in Physiological Strain in Children and Youth Exposed to Indoor Overheating
- ClinicalTrials.gov ID
- NCT07864103
- Acronym / sponsor ID
- HEPRU-2026-10-C
- Conditions
- Heat Stress, Physiological Stress, Child Development
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 60 participants (estimated)
- Lead sponsor
- University of OttawaUniversity, hospital or other
- Study start
- 2 Oct 2026 (estimated)
- Primary completion
- 30 Apr 2027 (estimated)
- Study completion
- 30 Jun 2027 (estimated)
- First posted
- 7 Oct 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Extreme heat exposure is an escalating global public health concern, with climate change driving increases in the frequency, duration, and intensity of heat events. Projections indicate substantial increases in heat-related morbidity and mortality in the coming decades, including among children and youth, who are increasingly recognized as a physiologically vulnerable population. The purpose of this project is to evaluate the effectiveness of commonly used heat-mitigation strategies, specifically midday access daylong electric fan use, in reducing physiological strain and maintaining cognitive function, perceptual comfort, and psychological well-being in children and youth exposed to prolonged indoor heat. The study also aims to determine whether these strategies provide comparable protection in children and youth relative to young adults. Participants will complete four sessions under the same environmental conditions (31°C and 36°C), with each temperature completed twice: once with continuous electric fan use and once without fan use. The four sessions therefore consist of: (1) 31°C without fan use; (2) 31°C with fan use; (3) 36°C without fan use; and (4) 36°C with fan use.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Warm indoor environment of 31°C without fans | Experimental | Other: Simulated exposure to indoor overheating without fansParticipants exposed daylong (6 hours) to an indoor temperature maintained at 31°C and 45% relative humidity without fan exposure. |
| Warm indoor environment of 31°C with fans | Experimental | Other: Simulated exposure to indoor overheating with fansParticipants exposed daylong (6 hours) to an indoor temperature maintained at 31°C and 45% relative humidity with fan exposure. |
| Hot indoor environment of 36°C without fans | Experimental | Other: Simulated exposure to indoor overheating without fansParticipants exposed daylong (6 hours) to an indoor temperature maintained at 36°C and 45% relative humidity with fan exposure. |
| Hot indoor environment of 36°C with fans | Experimental | Other: Simulated exposure to indoor overheating with fansParticipants exposed daylong (6 hours) to an indoor temperature maintained at 36°C and 45% relative humidity with fan exposure. |
Who may qualify
- Ages
- 9 to 25 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (4 listed)
- Participants must be healthy males or females within the specified age ranges (9-12 years, 13-16 years, or 20-25 years).
- All participants must be habitually active, defined as participation in regular physical activity at least three times per week for a minimum of 20 minutes per session over the previous six months.
- Participants must be able to understand and communicate in English or French.
- For participants under 18 years of age, written parental or guardian consent and participant assent will be required prior to participation.
Key exclusion criteria (4 listed)
- Individuals will be excluded from participation if they have any acute illness at the time of testing (e.g., cold, flu, or infection), or a history of chronic medical conditions that may affect thermoregulation, cardiovascular function, or exercise capacity, including but not limited to cardiovascular, metabolic, respiratory, or neurological disorders. Individuals taking medications known to influence thermoregulation, hydration status, or cardiovascular responses will also be excluded.
- Participants with a history of heat-related illness (e.g., heat exhaustion or heat stroke) will not be eligible.
- Individuals with digestive abnormalities or gastrointestinal conditions that may contraindicate ingestion of a telemetry pill will also be excluded.
- Any individual who, in the opinion of the investigators, may be at increased risk or unable to safely complete the study procedures will be excluded.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Simulated exposure to indoor overheating without fansChildren and young adults exposed to a 6-hour simulated heat exposure without fans. | Other | Hot indoor environment of 36°C without fans, Warm indoor environment of 31°C without fans |
| Simulated exposure to indoor overheating with fansChildren and young adults exposed to a 6-hour simulated heat exposure without fans. | Other | Hot indoor environment of 36°C with fans, Warm indoor environment of 31°C with fans |
Primary outcome
Core temperature (Peak) during daylong exposure to indoor overheating
Time frame: End of 6 hour daylong exposure
Peak core (indexed by visceral temperature) temperature (15 min average) during exposure. Visceral temperature is measured continuously throughout the 6 hour exposure to the simulated indoor overheating.
28 secondary outcomes
Profiles of Mood States (POMS) during daylong exposure to indoor overheating
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Environmental Symptoms Questionnaire (ESQ) during daylong exposure to indoor overheating
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Perceived exertion scale during daylong exposure to indoor temperature limit
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Activity levels (total steps taken) during daylong exposure to indoor overheating
Time frame: End of 6 hour daylong exposure
Feel good scale during daylong exposure to indoor overheating
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Thirst sensation scale during daylong exposure to indoor overheating
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Thermal comfort scale during daylong exposure to indoor overheating
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Thermal sensation 2 scale during daylong exposure to indoor overheating
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Thermal sensation scale during daylong exposure to indoor overheating
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Fluid loss during daylong exposure to indoor overheating
Time frame: At end of 6 hour daylong exposure
Fluid consumption during daylong exposure to indoor overheating
Time frame: At end of 6 hour daylong exposure
Hydration status during daylong exposure to indoor overheating
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
BTrackS Balance Assessment during daylong exposure to indoor overheating (postural stability)
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Executive function during daylong exposure to indoor overheating (cognitive function).
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
CDC 4-Stage Balance Test during daylong exposure to indoor overheating (postural stability).
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Memory recall during daylong exposure to indoor overheating (cognitive function).
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Impulse control during daylong exposure to indoor overheating (cognitive function).
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Reaction time during daylong exposure to indoor overheating (cognitive function).
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Diastolic blood pressure during daylong exposure to indoor overheating.
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Systolic blood pressure during daylong exposure to indoor overheating
Time frame: At the start (hour 0) and end of 6 hour daylong exposure
Heart rate end of daylong exposure to indoor overheating
Time frame: End of 6 hour daylong exposure
Heart rate (AUC) during daylong exposure to indoor overheating
Time frame: End of 6 hour daylong exposure
Heat rate (Peak) during daylong exposure to indoor overheating
Time frame: End of 6 hour daylong exposure
Mean skin temperature end of daylong exposure to indoor overheating
Time frame: End of 6 hour daylong exposure
Mean skin temperature (AUC) during daylong exposure to indoor overheating
Time frame: End of 6 hour daylong exposure
Mean skin temperature (Peak) during daylong exposure to indoor overheating
Time frame: End of 6 hour daylong exposure
Core temperature end of daylong exposure to indoor overheating
Time frame: End of 6 hour daylong exposure
Core temperature (AUC) during daylong exposure to indoor overheating
Time frame: End of 6 hour daylong exposure
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Oct 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Simulated exposure to indoor overheating without fans and Simulated exposure to indoor overheating with fans in people with Heat Stress and Physiological Stress, run by University of Ottawa at 1 site in Canada.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 7 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Glen P Kenny (613-562-5800 ext. 4282, gkenny@uottawa.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Core temperature (Peak) during daylong exposure to indoor overheating (time frame: End of 6 hour daylong exposure). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Oct 2026.