Can a simple tool help you cut salt and boost potassium for better blood pressure?

NCT ID NCT07025928

Disease control Sponsor: Sun Jingfeng Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study is testing a new educational tool called the Decreased Salt High Potassium (DSHP) Tool, designed to help adults with high blood pressure reduce their salt intake and eat more potassium-rich foods. About 190 participants from two clinics in Singapore will either receive the tool plus standard care, or standard care alone. Researchers will measure changes in urinary sodium and potassium levels, blood pressure, and body mass index over 24 weeks to see if the tool is helpful and practical.

What this could mean

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

Active substance: Decreased Salt High Potassium (DSHP) Tool (educational resource)
What this could lead to: If effective, this tool could offer a simple, low-cost way for people with high blood pressure to better manage their condition through diet.
What could go wrong: This is a small, early feasibility study, so results may not apply broadly. The tool's success depends on people actually changing their eating habits, which can be hard to sustain.

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 190 people

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

Expected to start

Apr 2026

An estimate. Start dates often move.

Expected to finish

Jul 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.

Ages

21 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 for patients: * Participants who are 21 years old and above. * Participants who self-reports to have hypertension for at least six months and/ or taking at least one type of antihypertensive medication daily for at least six months * Able to read English Exclusion Criteria for patients: * Participants with type 1/ type 2 or secondary diabetes mellitus * Participants with CKD stage 3B and above * Participants with serum potassium of above 4.5mmol/L (on the latest blood test) * Participants with serum sodium of less than 135 mmol/L (on the latest blood test) * Participants who are on daily potassium chloride * Participants who are on diuretics (thiazide or thiazide like diuretics) * Participants who are pregnant * Participants who had been diagnosed with any terminal illnesses, visually impaired, disability or mental health related illnesses (visually impaired refers to individuals who self-report to have difficulty reading the wordings on the patient consent form, even with the use of visual aids) * Participants who are not clinically stable (Clinically stable patients are defined in this study as: * Has clinic BP 100-160/60-100 mmHg, Heart Rate (HR) 60-100 bpm * No recent hospitalizations (within the last 3 months) due to hypertensive emergencies, strokes, myocardial infarctions or other acute cardiovascular events * No recent symptoms such as severe dizziness, fainting, or chest pain) \*Participants who are on PRN potassium supplements is not an exclusion criteria Inclusion criteria for Healthcare providers: * HCPs who had prior experience in advising patients on dietary salt reduction * HCPs who self-reported to have ever treated patients with hypertension Exclusion criteria for healthcare providers -nil

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Conditions

The condition(s) this trial relates to.

essential hypertension hypertensive disorder

As listed by the trial registrant

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

Hypertension

How to take part

Only the study team decides who joins. These are the ways to reach them.

The places running it

1 site. The list below names each one and where it is.
The official record

ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

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A doctor treating you

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Can a simple tool help you cut salt and boost potassium for better blood pressure?

What the study statuses mean