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HyperthermiaNCT07617649

Laboratory Heat Biomarker and Cooling Interventions

A study testing Hand cooling table and Cooling bandana in people with Hyperthermia, run by Stanford University at 1 site in United States.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

Our study has two goals. The first goal is to find a blood test that can detect signs of strain from heat in the body ("a biomarker"). Second, the study team wants to identify types of devices that can help people cool down quickly. Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Hyperthermia
What is being tested?
Hand cooling table and Cooling bandana
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteUnited States
Study dates
Jun 2026to Jun 2028
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 18 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Age 18-50
  • Able to communicate in English or Spanish
  • General good health
  • A lifestyle that includes regular patterns of modest exercise
  • Body weight over 80 pounds

Who cannot join

  • Cannot provide informed consent
  • Known history of cardiac arrhythmias or having a pacemaker
  • Difficulty swallowing pills
  • Planned upcoming X-ray tests or MRI
  • Known history of gastroparesis, diverticulosis or diverticulitis, or inflammatory bowel disease
  • Previous surgery on stomach or intestines (except for appendix or gallbladder)
Show all 10Show fewer
  • Pregnancy
  • Self-reported cardiac, kidney, or pulmonary disease, or diabetes
  • Concurrent use of temperature- or inflammation-modulating medications such as steroids or non-steroidal anti-inflammatory drugs (NSAIDs)
  • Staff under the direct supervision of any project directors or employed in the laboratory of the study investigators

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site
  • Stanford University

    Stanford, California, 94305

    Astrid Elliott, MS, astride@stanford.edu

Other trials in United States

About this study

Official title: Laboratory Based Identification of Heat Stress Biomarkers and Effective Cooling Interventions

Our study has two goals. The first goal is to find a blood test that can detect signs of strain from heat in the body ("a biomarker"). Second, the study team wants to identify types of devices that can help people cool down quickly.

By identifying biomarkers for heat strain, scientists can better track and treat the health effects of heat. The study team will identify such biomarkers by simulating, in a laboratory-based environment, the heat and physical work that real-world workers experience.

In addition, the study team plans to test two cooling technologies that might keep people cool during physical activity.

Conditions
Hyperthermia
Being tested
Hand cooling table, Cooling bandana
Medical subject headings
Hyperthermia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Hand cooling tableOther

    A participant can rest their hand on the cooling table after the one hour exercise session, and this should cool their body quickly. Cold water is pumped throughout the cooling table.

  • Cooling bandanaOther

    A participant will tie a bandana that has been soaked in cold water onto their forehead. They will wear this bandana during the one hour exercise session.

Study groups in NCT07617649
Study groupRoleWhat they receive
Biomarker testing (A), Cooling bandana (B), Hand cooling table (C)ExperimentalOn day 1 participants use the treadmill for one hour at a research laboratory while being monitored by trained research personnel and no cooling intervention is given to the participants. On day 2, participants use a cooling bandana during exercise for 1 hour. On day 3, participants use a hand cooling table after exercise for 10 minutes during a recovery period.
Receives: Other: Hand cooling table; Other: Cooling bandana
Biomarker testing (A), Hand cooling table (C), Cooling bandana (B)ExperimentalOn day 1 participants use the treadmill for one hour at a research laboratory while being monitored by trained research personnel and no cooling intervention is given to the participants. On day 2, participants use a hand cooling table after exercise for 10 minutes during a recovery period. On day 3, participants use a cooling bandana during exercise for 1 hour.
Receives: Other: Hand cooling table; Other: Cooling bandana
Cooling bandana (B), Biomarker testing (A), Hand cooling table (C)ExperimentalOn day 1, participants use a cooling bandana during exercise for 1 hour at a research laboratory while being monitored by trained research personnel. On day 2 participants use the treadmill for one hour and no cooling intervention is given to the participants. On day 3, participants use a hand cooling table after exercise for 10 minutes during a recovery period.
Receives: Other: Hand cooling table; Other: Cooling bandana
Cooling bandana (B), Hand cooling table (C), Biomarker testing (A)ExperimentalOn day 1, participants use a cooling bandana during exercise for 1 hour at a research laboratory while being monitored by trained research personnel. On day 2, participants use a hand cooling table after exercise for 10 minutes during a recovery period. On day 3 participants use the treadmill for one hour and no cooling intervention is given to the participants.
Receives: Other: Hand cooling table; Other: Cooling bandana
Hand cooling table (C), Biomarker testing (A), Cooling bandana (B)ExperimentalOn day 1, participants use a hand cooling table after exercise for 10 minutes during a recovery period at a research laboratory while being monitored by trained research personnel. On day 2 participants use the treadmill for one hour and no cooling intervention is given to the participants. On day 3, participants use a cooling bandana during exercise for 1 hour.
Receives: Other: Hand cooling table; Other: Cooling bandana
Hand cooling table (C), Cooling bandana (B), Biomarker testing (A)ExperimentalOn day 1, participants use a hand cooling table after exercise for 10 minutes during a recovery period at a research laboratory while being monitored by trained research personnel. On day 2, participants use a cooling bandana during exercise for 1 hour. On day 3 participants use the treadmill for one hour and no cooling intervention is given to the participants.
Receives: Other: Hand cooling table; Other: Cooling bandana

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Core body temperature

    Measured: Baseline through end of study (approximately 2 months).

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Jun 2026
  2. Study startJun 2026 (estimated)
  3. Primary completionJun 2028 (estimated)
  4. Study completionJun 2028 (estimated)

Resources

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
Prevention
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07617649
Sponsor's protocol ID
86182
Other IDs
1R01DK146310-01
Status last verified
May 2026
First submitted
23 May 2026
Last updated
1 Jun 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Ray SC, Mason J, O'Connor PM. Ischemic Renal Injury: Can Renal Anatomy and Associated Vascular Congestion Explain Why the Medulla and Not the Cortex Is Where the Trouble Starts? Semin Nephrol. 2019 Nov;39(6):520-529. doi: 10.1016/j.semnephrol.2019.10.002.

    PubMed 31836035
  • Evans RG, Smith DW, Lee CJ, Ngo JP, Gardiner BS. What Makes the Kidney Susceptible to Hypoxia? Anat Rec (Hoboken). 2020 Oct;303(10):2544-2552. doi: 10.1002/ar.24260. Epub 2019 Sep 30.

    PubMed 31566903
  • Febbraio MA. Alterations in energy metabolism during exercise and heat stress. Sports Med. 2001;31(1):47-59. doi: 10.2165/00007256-200131010-00004.

    PubMed 11219501
  • Hymczak H, Golab A, Mendrala K, Plicner D, Darocha T, Podsiadlo P, Hudziak D, Gocol R, Kosinski S. Core Temperature Measurement-Principles of Correct Measurement, Problems, and Complications. Int J Environ Res Public Health. 2021 Oct 10;18(20):10606. doi: 10.3390/ijerph182010606.

    PubMed 34682351
  • Mazloumi A, Golbabaei F, Mahmood Khani S, Kazemi Z, Hosseini M, Abbasinia M, Farhang Dehghan S. Evaluating Effects of Heat Stress on Cognitive Function among Workers in a Hot Industry. Health Promot Perspect. 2014 Dec 30;4(2):240-6. doi: 10.5681/hpp.2014.031. eCollection 2014.

    PubMed 25649311
  • Yin B, Fang W, Liu L, Guo Y, Ma X, Di Q. Effect of extreme high temperature on cognitive function at different time scales: A national difference-in-differences analysis. Ecotoxicol Environ Saf. 2024 Apr 15;275:116238. doi: 10.1016/j.ecoenv.2024.116238. Epub 2024 Mar 21.

    PubMed 38518609
  • Alahmad B, Kessler W, Alwadi Y, Schwartz J, Wagner GR, Michaels D. A nationwide analysis of heat and workplace injuries in the United States. Environ Health. 2025 Oct 6;24(1):65. doi: 10.1186/s12940-025-01231-1.

    PubMed 41047384
  • McTavish RK, Richard L, McArthur E, Shariff SZ, Acedillo R, Parikh CR, Wald R, Wilk P, Garg AX. Association Between High Environmental Heat and Risk of Acute Kidney Injury Among Older Adults in a Northern Climate: A Matched Case-Control Study. Am J Kidney Dis. 2018 Feb;71(2):200-208. doi: 10.1053/j.ajkd.2017.07.011. Epub 2017 Oct 23.

    PubMed 29074166
  • Moyce S, Armitage T, Mitchell D, Schenker M. Acute kidney injury and workload in a sample of California agricultural workers. Am J Ind Med. 2020 Mar;63(3):258-268. doi: 10.1002/ajim.23076. Epub 2019 Nov 26.

    PubMed 31773783
  • Grahn DA, Murray JV, Heller HC. Cooling via one hand improves physical performance in heat-sensitive individuals with multiple sclerosis: a preliminary study. BMC Neurol. 2008 May 12;8:14. doi: 10.1186/1471-2377-8-14.

    PubMed 18474113
  • Grahn DA, Cao VH, Heller HC. Heat extraction through the palm of one hand improves aerobic exercise endurance in a hot environment. J Appl Physiol (1985). 2005 Sep;99(3):972-8. doi: 10.1152/japplphysiol.00093.2005. Epub 2005 May 5.

    PubMed 15879169
  • Lissoway JB, Lipman GS, Grahn DA, Cao VH, Shaheen M, Phan S, Weiss EA, Heller HC. Novel application of chemical cold packs for treatment of exercise-induced hyperthermia: a randomized controlled trial. Wilderness Environ Med. 2015 Jun;26(2):173-9. doi: 10.1016/j.wem.2014.11.006. Epub 2015 Mar 12.

    PubMed 25771030
  • Grahn DA, Cao VH, Nguyen CM, Liu MT, Heller HC. Work volume and strength training responses to resistive exercise improve with periodic heat extraction from the palm. J Strength Cond Res. 2012 Sep;26(9):2558-69. doi: 10.1519/JSC.0b013e31823f8c1a.

    PubMed 22076097
  • Grahn D, Makam M, Craig Heller H. A method to reduce heat strain while clad in encapsulating outerwear. J Occup Environ Hyg. 2018 Aug;15(8):573-579. doi: 10.1080/15459624.2018.1470635.

    PubMed 29708853
  • Kellogg RA, Dunn J, Snyder MP. Personal Omics for Precision Health. Circ Res. 2018 Apr 27;122(9):1169-1171. doi: 10.1161/CIRCRESAHA.117.310909.

    PubMed 29700064

Questions about this trial

What is this clinical trial studying?

A study testing Hand cooling table and Cooling bandana in people with Hyperthermia, run by Stanford University at 1 site in United States.

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 5 inclusion and 10 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: opening soon, as of the sponsor's last update on 1 Jun 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 United States. 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?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Core body temperature (time frame: Baseline through end of study (approximately 2 months).). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07617649, which also lists 18 linked publications.

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 1 Jun 2026.

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