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Could a finger sensor replace the blood pressure cuff?

NCT ID NCT05554315

Knowledge-focused Sponsor: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested a new technique called speckle plethysmography to measure blood pressure continuously using light sensors on the fingers and toe. Forty healthy adults wore the sensors while doing tasks like slow breathing, math problems, and putting a hand in ice water. The goal was to see if this method could track blood pressure changes without a traditional cuff.

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 lead to a simpler, wearable device for tracking blood pressure continuously at home.
What could go wrong
This is a small, early-stage study in healthy people only. The technique may not work well in real-world conditions or in people with health issues.

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.

Participants

40 people

The number who actually took part.

Started

Apr 2023

Finished

Aug 2025

Lead sponsor

A government research agency

The lead sponsor is the US National Institutes of Health.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Male or female, aged 18 or greater in good general health as evidenced by medical history

Ages

18 to 99 years

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: In order to be eligible to participate in this study, an individual must meet all of the following criteria: * Male or female, aged 18 or greater. * In good general health as evidenced by medical history and physical. EXCLUSION CRITERIA: An individual who meets any of the following criteria will be excluded from participation in this study: * Any active cardiovascular or pulmonary disorders or use of vasoactive medications. * History of aneurysm or stroke. * Pregnant by history. * History of fainting or seizures. * An open cut, sore, or bone fracture on or near the hands or feet. * Known retinopathy, intraocular lens implantation, or glaucoma. * Any other condition that in the opinion of the investigator would place the participant at unacceptable risk.

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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

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States

More trials for these conditions

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