Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Cure My Disease

Don't miss your cure!

 Log in / Sign up

Could a seaweed supplement boost blood vessel function?

NCT ID NCT05651230

Disease control Sponsor: University of Texas at Austin 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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 a supplement made from seaweed, called rhamnan sulfate, can improve blood vessel function in middle-aged and older adults who have at least one risk factor for heart disease (like high blood pressure or obesity). Participants take the supplement or a placebo for three weeks each, with a two-week break in between. The goal is to see if this natural compound can help keep blood vessels healthy.

What this could mean

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

Active substance
rhamnan sulfate (a seaweed extract)
What this could lead to
If it works, this could point toward a simple dietary supplement to help protect blood vessels and reduce heart disease risk.
What could go wrong
This is a very small, early-stage trial with only 15 people. Results may not apply to everyone, and the supplement may not improve vascular function as hoped.

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

15 people

The number who actually took part.

Started

Apr 2023

Finished

Feb 2025

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

35 to 85 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: * at least one risk factor for cardiovascular disease (e.g., dyslipidemia, hypertension, obesity, impaired fasting glucose) * a BMI of \<40 kg/m2 Exclusion Criteria: * gastrointestinal disorders and/or renal disease * pregnancy or lactation * strenuous physical activity (\>3 times/week) * alcohol abuse

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Cardiovascular diseases are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

cardiovascular disorder

As listed by the trial registrant

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

Cardiovascular diseases

Contacts and locations

Locations

  • Cardiovascular Aging Research Lab at UT Austin

    Austin, Texas, 78712, United States

More trials for these conditions

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