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Arctic work and heart risk: new study probes hidden dangers

NCT ID NCT05839028

Knowledge-focused Sponsor: Tomsk National Research Medical Center of the Russian Academy of Sciences Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how high blood pressure changes the heart's structure in people who work rotating shifts in the Arctic. Researchers will track 550 workers over a year using heart ultrasounds and blood tests. The goal is to understand why some develop heart failure, not to test a new treatment.

What this could mean

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

What this could lead to
If successful, this research could reveal why some people with high blood pressure develop heart failure, pointing toward future prevention strategies.
What could go wrong
This is an observational study, not a treatment trial. It will not directly help participants, and the findings may not apply to people outside this specific Arctic work setting.

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.

Participants

About 550 people

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

Started

Oct 2022

Expected to finish

Oct 2026

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.

Who is studied

Зatients with hypertension of stages 1 and 2 and practically healthy individuals living in a temperate climate zone and carrying out an Arctic watch. Hypertension in the Arctic is characterized by faster target organ damage and worse prognosis.

Ages

18 to 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * The patient signed the informed consent Exclusion Criteria: * Valvular pathology of the heart * Past cardiac or cerebral complications * Identified heart rhythm disturbances * Coronary heart disease * Patients with severe somatic pathology, whose prognostic survival rate does not exceed 1 year * The presence of a mental disorder of organic origin

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Conditions

The condition(s) this trial relates to.

diastolic heart failure hypertensive disorder

As listed by the trial registrant

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

Heart failure with preserved ejection fraction

Contacts and locations

Locations

  • Tyumen Cardiology Research Center

    Tyumen, Tyumen Oblast, 625026, Russia

More trials for these conditions

Other studies related to the condition(s) this trial covers.