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Magnesium pills tested as simple blood pressure fix

NCT ID NCT05690464

Disease control Sponsor: Brigham and Women's Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests whether taking 480 mg of magnesium glycinate daily for 12 weeks can lower blood pressure in adults with slightly high systolic blood pressure (130-159 mmHg). 120 participants will be randomly assigned to get the supplement or a placebo. The main goal is to see if magnesium can safely reduce blood pressure.

What this could mean

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

Active substance
magnesium glycinate supplement
What this could lead to
If it works, this could point toward a simple, low-cost way to help manage blood pressure without medication.
What could go wrong
This is a small, early-stage trial with only 120 people. The effect may be small or not last, and results may not apply to everyone.

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 120 people

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

Started

Jan 2023

Expected to finish

Dec 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.

Ages

30 to 74 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: * Self-report of systolic blood pressure 125-159 mmHg * Measured seated systolic blood pressure 130-159 mmHg at screening visit * Body mass index less than 40 kg/m2 * Total magnesium intake from supplements of no more than 100 mg/day * Willing to maintain current diet and supplement use patterns during the 12-week intervention period Exclusion Criteria: * Measured seated diastolic blood pressure 100 mmHg or greater at screening visit * Antacid or laxative use 4 times/week or more within the past 3 months * History of cardiovascular disease (myocardial infarction, stroke, revascularization \[coronary artery bypass graft or percutaneous transluminal coronary angioplasty\], or angina pectoris) * History of invasive cancer diagnosed within the last 5 years (non-melanoma skin cancer permitted) * History of type 1 or 2 diabetes * History of renal disease * History of kidney failure * History of dialysis * History of pancreatitis * History of inflammatory bowel disease * History of hypermagnesemia * Women who are pregnant, nursing, or intend to become pregnant during the period of treatment * Plan to relocate out of Boston area within the next year * Unwillingness and/or inability to swallow 4 pills per day * Inability to provide written informed consent

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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

  • Brigham and Women's Hospital

    Boston, Massachusetts, 02215, United States

More trials for these conditions

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