UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062842
Receipt number R000071935
Scientific Title Nationwide Multicenter Study of Clinical Characteristics and Treatment of Kimura Disease in the Head and Neck
Date of disclosure of the study information 2026/10/01
Last modified on 2026/09/07 20:11:34

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Basic information

Public title

Nationwide Multicenter Study of Clinical Characteristics and Treatment of Kimura Disease in the Head and Neck

Acronym

Nationwide Multicenter Study of Clinical Characteristics and Treatment of Kimura Disease in the Head and Neck

Scientific Title

Nationwide Multicenter Study of Clinical Characteristics and Treatment of Kimura Disease in the Head and Neck

Scientific Title:Acronym

KIMURA study

Region

Japan


Condition

Condition

Kimura Disease

Classification by specialty

Oto-rhino-laryngology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Kimura disease is a relatively rare chronic inflammatory disorder that predominantly affects the head and neck region, and its clinical characteristics and optimal treatment strategies remain insufficiently understood. This nationwide multicenter study aims to collect and analyze clinical data from patients with Kimura disease involving the head and neck, including symptoms, lesion site, comorbidities, laboratory findings, treatment modalities, and clinical outcomes. The objectives are to characterize the patient demographics, clinical features, treatment patterns, and outcomes of Kimura disease in Japan and to provide evidence that may contribute to the establishment of appropriate clinical management strategies and improvement of treatment outcomes.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Proportion of patients receiving each treatment modality (surgery, pharmacotherapy, radiotherapy, etc.)
Response and recurrence rates according to treatment modality

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

5 years-old <=

Age-upper limit

90 years-old >=

Gender

Male and Female

Key inclusion criteria

1.Patients diagnosed with Kimura disease. The diagnosis is primarily based on histopathological findings. Patients without histopathological confirmation may also be included if the attending physician at each participating institution diagnoses Kimura disease based on a comprehensive assessment of imaging findings, laboratory findings, and clinical course. Such patients will be classified as suspected cases in this study.
2.Patients with lesions involving the head and neck region.
3.Patients who received inpatient or outpatient care at the Department of Otolaryngology Head and Neck Surgery of a participating institution between January 1, 2010 and June 30, 2026.
4.Patients who have not opted out of participation in this study.

Key exclusion criteria

1.Patients who have opted out of participation in this study.
2.Patients who are deemed inappropriate for inclusion in the study by the principal investigator or other study investigators.

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Yuka
Middle name
Last name Morita

Organization

University of Toyama

Division name

Department of Otolaryngology Head and Neck Surgery

Zip code

930-0194

Address

2630 Sugitani, Toyama-shi, Toyama

TEL

+81-76-434-7368

Email

kentoko@med.u-toyama.ac.jp


Public contact

Name of contact person

1st name Kento
Middle name
Last name Ko

Organization

University of Toyama

Division name

Department of Otolaryngology Head and Neck Surgery

Zip code

930-0194

Address

2630 Sugitani, Toyama-shi, Toyama-ken

TEL

+81-76-434-7368

Homepage URL


Email

kentoko@med.u-toyama.ac.jp


Sponsor or person

Institute

University of Toyama

Institute

Department

Personal name



Funding Source

Organization

University of Toyama

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, University of Toyama

Address

3190 Gofuku, Toyama-shi, Toyama

Tel

076-415-8857

Email

kenrinri@adm.u-toyama.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 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

Enrolling by invitation

Date of protocol fixation

2026 Year 10 Month 01 Day

Date of IRB

2026 Year 08 Month 31 Day

Anticipated trial start date

2027 Year 01 Month 01 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

This is a nationwide multicenter retrospective observational study of patients with Kimura disease involving the head and neck region. Clinical data, treatment modalities, and outcomes will be collected to investigate the clinical characteristics and treatment outcomes of Kimura disease in in otolaryngology head and neck surgery departments in Japan.


Management information

Registered date

2026 Year 09 Month 07 Day

Last modified on

2026 Year 09 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071935