UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000057654
Receipt number R000065874
Scientific Title An observational study on the relationship between tissue oxygen saturation and mottling score measured by a finger-mounted oximeter, shock withdrawal time, mortality, and ICU length of stay in critically ill patients.
Date of disclosure of the study information 2025/04/18
Last modified on 2025/04/18 18:39:41

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Basic information

Public title

Observational study of tissue oxygen saturation measurement using a finger-mounted oximeter for critically ill patients

Acronym

Observational study of tissue oxygen saturation measurement in critically ill patients

Scientific Title

An observational study on the relationship between tissue oxygen saturation and mottling score measured by a finger-mounted oximeter, shock withdrawal time, mortality, and ICU length of stay in critically ill patients.

Scientific Title:Acronym

Observational study of tissue oxygen saturation using a finger-mounted in critically ill patients

Region

Japan


Condition

Condition

circulatory failure

Classification by specialty

Intensive care medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the relationship between tissue oxygen saturation and mottling score, time to shock withdrawal, mortality, and ICU length of stay in patients with circulatory failure.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

shock withdrawal time, mortality rate, ICU stay time

Key secondary outcomes



Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


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

20 years-old <=

Age-upper limit

100 years-old >

Gender

Male and Female

Key inclusion criteria

Systolic blood pressure below 90 mmHg or lactate above 2 mmol/L at the time of arrival at the hospital

Key exclusion criteria

Patients who had received cardiopulmonary resuscitation, those under 20 years of age, and those who were unable to consent to this study.

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Jun
Middle name
Last name Sato

Organization

Nihon University School of Medicine

Division name

Division of Emergency and Critical Care Medicine, Department of Acute Medicine

Zip code

173-8610

Address

30-1 Oyaguchi Kami-cho Itabashi-ku, Tokyo

TEL

03-3972-8111

Email

sato.jun@nihon-u.ac.jp


Public contact

Name of contact person

1st name Jun
Middle name
Last name Sato

Organization

Nihon University School of Medicine

Division name

Division of Emergency and Critical Care Medicine, Department of Acute Medicine

Zip code

173-8610

Address

30-1 Oyaguchi Kami-cho Itabashi-ku, Tokyo

TEL

03-3972-8111

Homepage URL


Email

sato.jun@nihon-u.ac.jp


Sponsor or person

Institute

Nihon University School of Medicine

Institute

Department

Personal name

Jun Sato


Funding Source

Organization

Nothing

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

Ethics Committee of Nihon University Hospital

Address

1-6, Kanda Surugadai, Chiyoda-ku, Tokyo-to

Tel

03-3293-1711

Email

sato.jun@nihon-u.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

2025 Year 04 Month 18 Day


Related information

URL releasing protocol

https://www.mdpi.com/2075-4418/14/21/2428

Publication of results

Partially published


Result

URL related to results and publications

https://www.mdpi.com/2075-4418/14/21/2428

Number of participants that the trial has enrolled

38

Results

In patients with circulatory failure, subcutaneous tissue oxygen saturation did not correlate with blood pressure but showed a significant negative correlation with the SOFA score. In particular, measurement of subcutaneous tissue oxygen saturation at the knee was valid.

Results date posted

2025 Year 04 Month 18 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results

2024 Year 10 Month 30 Day

Baseline Characteristics

The median age was 73 years, and septic shock accounted for 18 cases (47%).

Participant flow

A total of 259 patients met the selection criteria, 129 cases of cardiac arrest were excluded, and 92 cases for which consent could not be obtained were also excluded, resulting in a final analysis of 38 cases.

Adverse events

none

Outcome measures

Correlation between tissue oxygen saturation, blood pressure, and SOFA score

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2020 Year 06 Month 02 Day

Date of IRB

2020 Year 06 Month 02 Day

Anticipated trial start date

2020 Year 06 Month 15 Day

Last follow-up date

2022 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Observation parameters include vital signs, blood test results, mottling score, subcutaneous and cerebral tissue oxygen saturation, etc.


Management information

Registered date

2025 Year 04 Month 18 Day

Last modified on

2025 Year 04 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000065874