UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059198
Receipt number R000067705
Scientific Title Retrospective Observational Study on Treatment Efficacy Following Switching from Neutralizing Antibodies to Receptor Antibodies in EGPA
Date of disclosure of the study information 2025/11/01
Last modified on 2025/09/26 09:55:40

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Basic information

Public title

A Retrospective Observational Study on Treatment Outcomes Following Switching to Anti-IL-5 Therapy in EGPA

Acronym

Observational Study on Treatment Outcomes Following Treatment Modifications in EGPA

Scientific Title

Retrospective Observational Study on Treatment Efficacy Following Switching from Neutralizing Antibodies to Receptor Antibodies in EGPA

Scientific Title:Acronym

Observational Study on Switching Antibody Therapies in EGPA

Region

Japan


Condition

Condition

eosinophilic granulomatosis with polyangiitis: EGPA

Classification by specialty

Medicine in general Clinical immunology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Confirm the impact on treatment efficacy following changes in antibody therapy

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Asthma Symptom Score (ACT), Lung Function, Peripheral Eosinophil Count

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

18 years-old <=

Age-upper limit

100 years-old >

Gender

Male and Female

Key inclusion criteria

Patients undergoing anti-IL-5 antibody therapy for EGPA.
Patients who provided consent.

Key exclusion criteria

Patients who did not provide consent.

Target sample size

5


Research contact person

Name of lead principal investigator

1st name Takao
Middle name
Last name ATSUMI

Organization

Saitama Medical University Hospital

Division name

General Internal Medicine

Zip code

350-0495

Address

38 Morohon'go, Moroyama-machi, Iruma-gun, Saitama Prefecture

TEL

0492761667

Email

atsumi-takao@saitama-med.ac.jp


Public contact

Name of contact person

1st name Takehito
Middle name
Last name KOBAYASHI

Organization

Saitama Medical University Hospital / Saitama Prefectural Cardiovascular and Respiratory Center

Division name

General Internal Medicine, Respiratory Medicine, Emergency Medicine / General Internal Medicine

Zip code

350-0495 / 360-0197

Address

38 Morohon'go, Moroyama-machi, Iruma-gun, Saitama / 1696 Itai, Kumagaya City, Saitama Prefe

TEL

048-536-9900

Homepage URL


Email

kobayashi.takehito@1972.saitama-med.ac.jp


Sponsor or person

Institute

Saitama Medical University

Institute

Department

Personal name

Takehito KOBAYASHI


Funding Source

Organization

none

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

Saitama Medical University Hospital Clinical Research Center Hospital IRB Office

Address

38 Morohon'go, Moroyama-machi, Iruma-gun, Saitama Prefecture

Tel

049-276-1354

Email

hirb@saitama-med.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 11 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 04 Month 01 Day

Date of IRB


Anticipated trial start date

2025 Year 04 Month 10 Day

Last follow-up date

2028 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Nothing to report
This examination is an observational study


Management information

Registered date

2025 Year 09 Month 26 Day

Last modified on

2025 Year 09 Month 26 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067705