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Sauna bathing may offer a sweat-based path to lower blood pressure

NCT ID NCT07796048

Symptom relief Sponsor: University of Calgary Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 31, 2026 · Last updated Sep 01, 2026 · Updated 1 time

Summary

This pilot study tests whether adding regular sauna sessions to usual care can help lower blood pressure in people with primary aldosteronism, a condition that causes high blood pressure. Ten adults will attend three 30-minute sauna sessions per week for two weeks while wearing a continuous blood pressure monitor. The main goal is to see if patients find sauna bathing acceptable and can stick with it, with blood pressure changes as a secondary focus.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
sauna bathing (behavioral intervention)
What this could lead to
If sauna bathing proves acceptable and feasible, it could become a non-drug way to help lower blood pressure in people with primary aldosteronism.
What could go wrong
This is a small pilot study focused on feasibility, not proof of effectiveness. It may not show a clear blood pressure benefit, and results may not apply to broader populations.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 10 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Sep 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * a) Age 18-65 b) Hypertension with PA diagnosed using Endocrine Society's 2025 criteria c) Stable medical therapy with no change in dose/agent in prior 6 weeks d) BP uncontrolled, clinic \> 140/90 or ABPM mean \> 135/85 e) Dietary sodium moderate or higher (\> 128 mmol/d) f) Subject owns iPhone (12-16) or Android and willing to install HiLo app Exclusion Criteria: 1. BP \> 160/105 in clinic or \> 155/100 on ABPM 2. Planning adrenalectomy or other surgery during trial 3. Recent hospitalization for any reason, in the past 3 months 4. Confirmed or suspected MI, angina, CHF or arrhythmia diagnosis in the past 6 months 5. CKD, eGFR \< 30 ml/min/m2 6. Pregnancy, planned pregnancy, or non-use of contraceptive during study 7. Recent hypotensive event/syncope in the past 3 months 8. Any complex medical condition where sauna exposure is not advised 9. Planning major dietary change 10. History of medication non-adherence 11. Night shift worker / at work after 2000h 12. Planned vacation/absence during 6-week study 13. Inability to read English or consent to participation

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Conditions

The condition(s) this trial relates to.

hyperaldosteronism hypertensive disorder primary aldosteronism

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Hypertension Primary aldosteronism

How to take part

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  1. The official record

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