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Potassium power: can supplements tame high blood pressure?

NCT ID NCT05758142

Disease control Sponsor: Tulane University Source: ClinicalTrials.gov ↗

What the study statuses mean

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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
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early This study
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This status has not been confirmed recently, so it may be out of date.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 looked at how different amounts of potassium supplements affect blood pressure in adults with high blood pressure. Researchers aimed to find the best potassium level to help lower blood pressure. The study was stopped early and included 25 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.

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

25 people

The number who actually took part.

Started

Mar 2023

Finished

May 2024

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 years and older

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: * Men or women aged \>18 years of any race/ethnicity * Elevated BP or hypertension at screening (untreated office systolic BP 120-159 and diastolic BP \<100 mm Hg) * Willing and able to provide informed consent Exclusion Criteria: * Medical condition in which potassium supplementation is contraindicated: history of heart failure, myocardial infarction, stroke, cardiac arrythmia, chronic kidney disease or estimated glomerular filtration rate \<60 ml/min/1.73 m\^2, diabetes or non-fasting glucose \>200 mg/dL, major depressive disorder (PHQ-9 score ≥15), psychosis, ulcer diseases including esophageal-gastric ulcer, malignancy in the past 5 years, liver disease, organ transplant, Addison's disease (adrenal insufficiency) * Use of medications which may alter serum potassium levels or in which potassium supplementation is contraindicated: antihypertensive agents, antihistamines, antiparkinson agents, antimuscarinic agents, antipsychotics, muscle relaxants, systemic corticosteroids, or chronic use of non-steroidal anti-inflammatory drugs * Serum potassium ≥5.0 mEq/L * Metabolic acidosis * Consumption of \>85th percentile of usual potassium intake among US adults (\>3,750 mg/day) * For women, current pregnancy, breastfeeding, or plans to become pregnant during the study * Consumption of ≥21 alcoholic beverages per week or consumption of ≥6 beverages per occasion * Current or planned residence making it difficult to meet trial requirements or travel to the study site * Current participation in another intervention or pharmaceutical trial * Unable or unwilling to complete 24-hour BP or urinary sample collection * Other concerns regarding ability to meet trial requirements, at the discretion of the investigators or staff

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Conditions

The condition(s) this trial relates to.

hypertensive disorder

As listed by the trial registrant

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

Blood pressure

Contacts and locations

Locations

  • Tulane University Office of Health Research

    New Orleans, Louisiana, 70112, United States

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