UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000063166
Receipt number R000072283
Scientific Title Feasibility Study of Pulse Wave-Like Signal Measurement in Healthy Adults Using an Ultrasound Sensor System
Date of disclosure of the study information 2026/10/05
Last modified on 2026/10/03 19:30:13

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Basic information

Public title

Feasibility Study of Pulse Wave-Like Signal Measurement in Healthy Adults Using an Ultrasound Sensor System

Acronym

Feasibility Study of Pulse Wave-Like Signal Measurement in Healthy Adults Using an Ultrasound Sensor System

Scientific Title

Feasibility Study of Pulse Wave-Like Signal Measurement in Healthy Adults Using an Ultrasound Sensor System

Scientific Title:Acronym

Feasibility Study of Pulse Wave-Like Signal Measurement in Healthy Adults Using an Ultrasound Sensor System

Region

Japan


Condition

Condition

healthy adults

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This exploratory study will assess noninvasive pulse waveform acquisition using an ultrasound sensor system under development in healthy adults. At the radial artery, two-site PWV will be assessed at rest, during leg elevation, and during deep breathing, and compared with changes in systolic blood pressure. At rest, waveforms from both common carotid arteries will be acquired and compared.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Success rate of pulse waveform acquisition. For the radial artery, separate and simultaneous two-site acquisition will be evaluated at rest, after lower limb elevation, and after deep breathing. For the common carotid arteries, separate left- and right-side and bilateral acquisition will be evaluated at rest. Successful acquisition is defined as clear identification of the pulse upstroke and main peak without interference from signal saturation or motion artifacts.

Key secondary outcomes

Waveform acquisition stability; success rate of radial artery PWV calculation; directional agreement and correlation of changes between systolic blood pressure and PWV; and comparison of the morphological and temporal characteristics of the left and right common carotid artery waveforms at rest.


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Prevention

Type of intervention

Maneuver

Interventions/Control_1

Several minutes of lower limb elevation/Several deep breaths

Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

(1) Individuals aged 18 years or older at the time of enrollment
(2) Individuals who self-report that they have not been diagnosed by a physician with hypertension, cardiovascular disease, cerebrovascular disease, or respiratory disease that may affect their ability to perform deep breathing
(3) Individuals who are able to perform deep breathing and lower limb elevation without assistance
(4) Individuals who have provided written informed consent to participate in the study

Key exclusion criteria

(1) Individuals with a resting systolic blood pressure of 140 mmHg or higher or a resting diastolic blood pressure of 90 mmHg or higher before the start of measurement
(2) Individuals with wounds, inflammation, infection, or other skin conditions on the forearm or neck where the sensors and fixation devices will be placed
(3) Individuals with an allergy to polyurethane gel or a history of itching or redness associated with the use of ultrasound gel
(4) Individuals who are pregnant or who self-report the possibility of pregnancy

Target sample size

12


Research contact person

Name of lead principal investigator

1st name Yoichi
Middle name
Last name Haga

Organization

Tohoku university

Division name

Biomedical Engineering

Zip code

980-8579

Address

6-6-12, Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, Japan

TEL

022-795-5250

Email

haga@tohoku.ac.jp


Public contact

Name of contact person

1st name Mayu
Middle name
Last name Hayama

Organization

Tohoku university

Division name

Biomedical Engineering

Zip code

980-8579

Address

6-6-12, Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, Japan

TEL

022-795-5251

Homepage URL


Email

hayama.mayu.p7@dc.tohoku.ac.jp


Sponsor or person

Institute

Tohoku university

Institute

Department

Personal name



Funding Source

Organization

Tohoku University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee, Tohoku University

Address

2-1-1, Katahira, Aoba-ku, Sendai, Miyagi, Japan

Tel

N/A

Email

tuhrp-soudan1@grp.tohoku.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 10 Month 05 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2026 Year 09 Month 25 Day

Date of IRB


Anticipated trial start date

2026 Year 11 Month 01 Day

Last follow-up date

2027 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 10 Month 03 Day

Last modified on

2026 Year 10 Month 03 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072283