Can a simple blood test forecast heart failure years before it strikes?

NCT ID NCT04190420

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 31, 2026 · Last updated Sep 01, 2026 · Updated 1 time

Summary

This study follows 250 people with high blood pressure and 60 healthy volunteers over several years. Researchers use heart imaging and blood tests to track changes in heart structure and function. The goal is to understand why some people with hypertension develop heart failure, and to find early markers that could predict this transition.

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 this study succeeds, it could identify early warning signs that predict which people with high blood pressure will develop heart failure, opening the door to prevention strategies.
What could go wrong
This is an observational study, not a treatment trial, so it cannot prove cause and effect. The follow-up period may be too short to capture heart failure development in many participants.

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 310 people

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

Started

Oct 2018

Expected to finish

Dec 2030

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

Patients with primary hypertension will be recruited from health care centers in various socioeconomic areas in Stockholm. To include 250 patients and with an expected response rate of 25-30%, each health care center will identify and randomly select and invite 100 patients, gender 1:1. Patients will be characterized at baseline, after 1 and 6 years per standardized protocol and they will have their medication optimized at baseline and follow-ups, according to guidelines. Parallel with patient recruitment, healthy control subjects, matched in age and gender will be recruited by advertisement in local newspapers. Inclusion will be performed following a telephone interview, confirming they are apparently healthy and have no daily medication. Control subjects will follow the same study protocol as the patients but planned to be examined at inclusion only.

Ages

18 to 99 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: * Primary hypertension * Age ≥ 18 years * Preserved cognitive function and expected longevity 1 year * Written informed consent Exclusion Criteria: * Heart failure and/or reduced LVEF * Valvular heart disease of hemodynamic importance * Resistant hypertension * Pregnancy * Renal failure, GFR \<30 mL/min/1,73 m2

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Mattias Ekström

    Stockholm, 18288, Sweden

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