UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000054006
Receipt number R000061647
Scientific Title A prospective study comparing airway lesions in patients with asthma and cough-variant asthma using impulse oscillometry (IOS) examination results based on the MOST graph conducted on patients diagnosed with asthma and cough-variant asthma after November 2020.
Date of disclosure of the study information 2024/03/29
Last modified on 2025/09/29 09:15:07

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

A prospective study comparing airway lesions in patients with asthma and cough-variant asthma using impulse oscillometry (IOS) examination results based on the MOST graph conducted on patients diagnosed with asthma and cough-variant asthma after November 2020.

Acronym

A prospective study comparing airway lesions in patients with asthma and cough-variant asthma using impulse oscillometry (IOS) examination results based on the MOST graph conducted on patients diagnosed with asthma and cough-variant asthma after November 2020.

Scientific Title

A prospective study comparing airway lesions in patients with asthma and cough-variant asthma using impulse oscillometry (IOS) examination results based on the MOST graph conducted on patients diagnosed with asthma and cough-variant asthma after November 2020.

Scientific Title:Acronym

A prospective study comparing airway lesions in patients with asthma and cough-variant asthma using impulse oscillometry (IOS) examination results based on the MOST graph conducted on patients diagnosed with asthma and cough-variant asthma after November 2020.

Region

Japan


Condition

Condition

Asthma and Clinical Cough-Variant Asthma

Classification by specialty

Medicine in general Pneumology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To prospectively compare impulse oscillometry (IOS) results using MOST graph in patients registered since ethical approval from November 2020 onwards at our facility, diagnosed with asthma and those considered to have cough-variant asthma with a potential to transition to asthma.

Basic objectives2

Others

Basic objectives -Others

To prospectively compare various examination results and impulse oscillometry (IOS) results using MOST graph in patients diagnosed with asthma who have been enrolled since ethical approval from November 2020 onwards at our facility, and patients diagnosed with cough-variant asthma, which is considered a prodromal state of asthma with potential transition to asthma.

Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

A comparison of Impedance Oscillation system utilizing MOST graph at the time of diagnosis between asthma patients enrolled since ethical approval from November 2020 at our facility and patients diagnosed with clinical cough-variant asthma

Key secondary outcomes

To compare various examination results and Impulse Oscillometry (IOS) results using MOST graph between asthma patients enrolled since ethical approval from November 2020 at our facility and patients diagnosed with cough-variant asthma, which is considered a prodromal state of asthma with potential transition to asthma.


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

Treatment

Type of intervention

Maneuver

Interventions/Control_1

Measure airway resistance using MostGraph in patients diagnosed with asthma or cough variant asthma, in conjunction with diagnostic tests.

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

From November 2020 to March 2024, patients diagnosed with clinical cough-variant asthma and asthma at the Japan Medical University Hospital Respiratory Medicine Department and Japan Medical University Respiratory Care Clinic were prospectively enrolled and their data analyzed. This study was devised and executed to investigate the results obtained when performing Impulse Oscillometry (IOS) using the MostGraph in asthma patients, compare these results with those of patients with cough-variant asthma, and assess whether the MostGraph results reflect the airway lesions of asthma patients. The aim was to examine the potential usefulness of the MostGraph in understanding the airway lesions of asthma patients. The selection criteria were as follows:

1 Patients aged 20 years or older (both sexes).
2 Patients diagnosed with asthma or CVA at our facility or those referred from other institutions with a diagnosis of asthma based on reversible airflow tests and clinical history, where exclusion of other diseases was confirmed.
3 Patients with stable symptoms persisting for at least three months, continuing until the completion of the assessments, and not requiring the introduction of new treatments until the initiation of treatment for the disease diagnosed after these assessments.
4 Patients without any severe condition requiring immediate treatment.
5 Patients in whom any disease associated with airflow obstruction requiring medications other than bronchodilators could be ruled out, and who were not taking ACE inhibitors.
6 Patients without diseases that could obscure the diagnosis of asthma or CVA.
7 Patients who have been informed about the study using an informed consent document and have provided consent to participate in this study.
Note: CVA typically stands for cough-variant asthma.

Key exclusion criteria

Exclusion criteria:

1) Patients who have no symptoms, including cough or symptoms derived from asthma.
2) Patients with acute symptoms requiring immediate treatment intervention.
3) Patients with diseases causing cough requiring medication other than bronchodilators, unrelated to asthma or CVA.
4) Patients receiving medication (such as ACE inhibitors) that hinder the definitive diagnosis of asthma or CVA.
5) Patients with conditions that hinder the definitive diagnosis of asthma or CVA.
6) Patients lacking decision-making capacity.

Target sample size

380


Research contact person

Name of lead principal investigator

1st name Yosuke
Middle name
Last name Tanaka

Organization

Niippon Medical School

Division name

Department of Respiratory Medicine

Zip code

113-8603

Address

1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan

TEL

03-3822-2131

Email

yosuke-t@nms.ac.jp


Public contact

Name of contact person

1st name Yosuke
Middle name
Last name Tanaka

Organization

Nippon Medical School

Division name

Department of Respiratory Medicine

Zip code

113-8603

Address

1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan

TEL

03-3822-2131

Homepage URL


Email

yosuke-t@nms.ac.jp


Sponsor or person

Institute

Nippon Medical School

Institute

Department

Personal name

Yosuke Tanaka


Funding Source

Organization

Nippon Medical School

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization

N/A


Other related organizations

Co-sponsor

None

Name of secondary funder(s)

None


IRB Contact (For public release)

Organization

the ethics committees of the Nippon Medical School Hospital

Address

1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan

Tel

03-3822-2131

Email

nms@esct.bvits.com


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

日本医科大学付属病院(東京都)


Other administrative information

Date of disclosure of the study information

2024 Year 03 Month 29 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

No longer recruiting

Date of protocol fixation

2020 Year 11 Month 24 Day

Date of IRB

2020 Year 11 Month 24 Day

Anticipated trial start date

2020 Year 11 Month 24 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

Compare and evaluate the results of Impulse Oscillometry (IOS) using the MOST graph, diagnosed with asthma or cough variant asthma at our facility, alongside other indicators.


Management information

Registered date

2024 Year 03 Month 29 Day

Last modified on

2025 Year 09 Month 29 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000061647

Research Plan
Registered date File name
2024/07/05 BACVA実施計画書(大・付)_1712.docx
Research case data specifications
Registered date File name
2024/04/09 登録仕様.xlsx
Research case data
Registered date File name
2024/04/09 UMIN用.jmp

Single case data URL

Value
https://center6.umin.ac.jp/ice/61647