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Can stretching leg veins raise blood pressure? new study investigates

NCT ID NCT03496792

Knowledge-focused Sponsor: Milton S. Hershey Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 Jul 10, 2026 · Updated 2 times

Summary

This study looks at whether stretching the veins in your legs causes a rise in blood pressure when you stand up, a condition called orthostatic hypertension. Researchers will use a tilt table and inflatable trousers to gently stretch leg veins in 30 healthy adults and people with high standing blood pressure. They will measure nerve activity and blood pressure to understand the body's reflex response.

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 successful, this could help explain why some people's blood pressure rises when they stand, pointing toward better treatments for orthostatic hypertension.
What could go wrong
This is a small, early-stage observational study with only 30 participants, so results may not apply broadly. It measures nerve activity and blood pressure, not a treatment, so direct patient benefits are far off.

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 30 people

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

Started

Mar 2020

Expected to finish

Nov 2027

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

18 years and older

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: * Are capable of giving informed consent * Are of any race or ethnicity * Are fluent in written and spoken English * Whose history and physical exam did not uncover any exclusion criteria * Are 18 years of age For subjects with elevated standing BP * Systolic BP (SBP) during standing is at least 10 mmHg \> the supine SBP * Patients with a diagnosis of stage I hypertension without other chronic diseases may be INCLUDED For normal subjects without elevated standing BP * The change in SBP by standing is within ± 5 mmHg from the supine SBP * Matched gender, similar age and BMI (within 10%) to participants with elevated standing BP * Free of acute or chronic medical conditions Exclusion Criteria: * Age \< 18 years of age * Are a pregnant or nursing woman * Are a prisoner or institutionalized individual or unable to consent * Have chronic diseases (e.g. heart, lung, neuromuscular disease, or cancer) other than stage I hypertension * Have orthostatic hypotension or a history of syncope * Current smoker * History of blood clots

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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.

Blood pressure

How to take part

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

  1. The places running it

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

  2. The official record

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

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Penn State Milton S. Hershey Medical Center

    RECRUITING

    Hershey, Pennsylvania, 17033, United States

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