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NCT05554315

Speckle Plethysmography Pulse Transit Time as a Marker of Blood Pressure Changes

Completed Last updated 27 February 2026
What this trial tests

trial in Blood Pressure in 40 participants. Completed in 8 August 2025.

Timeline
19 April 2023
Primary endpoint
5 August 2025
8 August 2025

Quick facts

Lead sponsorEunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
StatusCompleted
Study typeOBSERVATIONAL
Enrollment40
Start date19 April 2023
Primary completion5 August 2025
Estimated completion8 August 2025
Sites1 location across United States

Conditions studied

Sponsor

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Who can join

Adults 18 to 99, any sex, with Blood Pressure. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Background: Blood pressure is one of the key markers of cardiovascular health. High blood pressure, also called hypertension, can increase the risk of heart disease or stroke. Monitoring a person s blood pressure continuously over a 24-hour period at home is the best way to diagnose hypertension, but the equipment currently used to do it is cumbersome. This natural history study will test a new technique for monitoring blood pressure continuously over time. Objective: To test a new technique (speckle plethysmography) for measuring blood pressure in healthy adults. Eligibility: Healthy people aged 18 years and older. Design: Participants will come to the clinic a minimum of 2 times. The screening visit will last up to 2 hours. Participants will have a physical exam. Their vital signs will be taken. The clinical visit will last up to 1 hour. Participants will recline in a chair. Sensors to measure the activity of the heart will be placed on their chest. Different sensors will be placed on two fingers and one big toe. A device to measure blood pressure will be placed on one arm. While wearing the sensors, participants will undergo 3 tests: They will be asked to breathe slowly for 2 minutes. They will be asked to solve a math problem. They will immerse one hand or foot into an ice bath for up to 2 minutes. Each test will be followed by a 5-minute recovery period. Participants may elect to return for up to 3 more visits during the following week.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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Other recruiting trials for Blood Pressure

Currently open trials in the same condition.

Other Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) trials

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Data sources for this page

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