UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000059098
Receipt number R000067569
Scientific Title Exploratory study on exercise capacity assessment using a sweat lactate sensor in patients with heart failure and implanted left ventricular assist devices
Date of disclosure of the study information 2025/12/01
Last modified on 2025/09/16 17:20:08

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Basic information

Public title

A study of non-invasive exercise evaluation using a sweat lactate sensor in patients with heart failure and ventricular assist devices

Acronym

SWEAT-HF study

Scientific Title

Exploratory study on exercise capacity assessment using a sweat lactate sensor in patients with heart failure and implanted left ventricular assist devices

Scientific Title:Acronym

SWEAT-HF trial

Region

Japan


Condition

Condition

patients with heart failure and ventricular assist devices

Classification by specialty

Cardiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The aim of this study is to evaluate the validity and feasibility of sweat lactate threshold (sLT) measurement using a sweat lactate sensor in patients with heart failure and implanted left ventricular assist devices, in order to explore its utility as a non-invasive method for assessing exercise capacity.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Agreement between sweat lactate threshold (sLT) and ventilatory threshold (VT) in patients who underwent cardiopulmonary exercise testing (CPX), assessed by correlation coefficient and Bland-Altman analysis. The evaluation will be performed at baseline (registration).

Key secondary outcomes

Success rate of sweat lactate threshold (sLT) measurement in all subjects, determined by three independent evaluators. Evaluation at baseline (registration).
Association of sLT with exercise heart rate, Borg scale, and walking distance. Evaluation at baseline (registration).


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


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients hospitalized for heart failure or patients with an implanted left ventricular assist device(LVAD)at our hospital
Age >= 20 years
Patients who have received an explanation of the study objectives and methods and have provided written informed consent

Key exclusion criteria

Patients with skin lesions on the forehead that make sensor attachment difficult
Patients with severe activity limitation who cannot undergo exercise testing or rehabilitation
Patients judged inappropriate for participation by the principal investigator

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Yoshitaka
Middle name
Last name Isotani

Organization

Institute of Science Tokyo Hospital

Division name

Department of Cardiology

Zip code

1138519

Address

1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan

TEL

03-3813-6111

Email

isotani.yoshitaka@tmd.ac.jp


Public contact

Name of contact person

1st name Yoshitaka
Middle name
Last name Isotani

Organization

Institute of Science Tokyo Hospital

Division name

Department of Cardiology

Zip code

1138519

Address

1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan

TEL

03-3813-6111

Homepage URL


Email

isotani.yoshitaka@tmd.ac.jp


Sponsor or person

Institute

Institute of Science Tokyo Hospital

Institute

Department

Personal name



Funding Source

Organization

Institute of Science Tokyo Hospital

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Institute of Science Tokyo Hospital

Address

1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan

Tel

03-5803-4547

Email

rinri.adm@tmd.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 12 Month 01 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

2025 Year 09 Month 16 Day

Date of IRB


Anticipated trial start date

2025 Year 11 Month 01 Day

Last follow-up date

2026 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

This study will be conducted as an exploratory clinical study with the approval of the Ethics Committee of Tokyo Science University Hospital. The sweat lactate sensor (GI-1) used in this study is provided free of charge by Grace Imaging Inc., and the investigators have no financial conflicts of interest. Patient enrollment will begin after ethics committee approval.


Management information

Registered date

2025 Year 09 Month 16 Day

Last modified on

2025 Year 09 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000067569