UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000063328
Receipt number R000072484
Scientific Title Comparison of 12-Week and 36-Week Maintenance Therapy in Oral Immunotherapy for Wheat Allergy: A Randomized Controlled Trial
Date of disclosure of the study information 2026/11/01
Last modified on 2026/10/18 13:18:13

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Basic information

Public title

Comparison of 12-Week and 36-Week Maintenance Therapy in Oral Immunotherapy for Wheat Allergy: A Randomized Controlled Trial

Acronym

A Study Comparing Maintenance Durations of Oral Immunotherapy for Wheat Allergy

Scientific Title

Comparison of 12-Week and 36-Week Maintenance Therapy in Oral Immunotherapy for Wheat Allergy: A Randomized Controlled Trial

Scientific Title:Acronym

12-week vs 36-week maintenance OIT for wheat allergy

Region

Japan


Condition

Condition

Wheat allergy

Classification by specialty

Clinical immunology Pediatrics

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To compare the efficacy of 12-week and 36-week maintenance therapy in oral immunotherapy for wheat allergy. The primary outcomes are the rates of negative results on the first OFC2 and OFC3 in each group.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Comparison of the rate of a negative result on the first OFC3 between the 12-week and 36-week maintenance groups.

Key secondary outcomes

Comparison of the rate of a negative result on the first OFC2 between the 12-week and 36-week maintenance groups.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Dose comparison

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

Participants undergo wheat oral immunotherapy and receive boiled udon noodles (25 g once daily) for either 12 weeks during the maintenance phase following dose escalation. OFC2 is performed at the end of the maintenance period. Participants with a negative OFC2 undergo OFC3 after the protocol-specified elimination period.

Interventions/Control_2

Participants undergo wheat oral immunotherapy and receive boiled udon noodles (25 g once daily) for 36 weeks during the maintenance phase following dose escalation. OFC2 is performed at the end of the maintenance period. Participants with a negative OFC2 undergo OFC3 after the protocol-specified elimination period.

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

2 years-old <=

Age-upper limit

15 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Patients aged 2 years or older with wheat allergy.
2. Patients who had a positive oral food challenge (OFC) to less than 25 g of boiled udon noodles.

Key exclusion criteria

Patients who experienced severe anaphylactic symptoms during an OFC. Severe anaphylactic symptoms are defined as requiring multiple doses of epinephrine for anaphylaxis or experiencing anaphylactic shock.



Patients who developed clear allergic symptoms following administration of the initial dose of 0.1 g.



Patients with poorly controlled atopic dermatitis or bronchial asthma.



Patients with severe diseases, or diseases that may affect the study, involving the cardiovascular, neurological, renal or urinary, hepatobiliary, or gastrointestinal systems.



Patients deemed unsuitable for participation in the study by the principal investigator or a sub-investigator for any other reason.

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Yuki
Middle name
Last name Okada

Organization

Showa medical university

Division name

pediatrics

Zip code

142--0064

Address

1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan

TEL

0337848000

Email

y.okada@med.showa-u.ac.jp


Public contact

Name of contact person

1st name Yuki
Middle name
Last name Okada

Organization

Showa medical university

Division name

Pediatrics

Zip code

142--0064

Address

1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan

TEL

09072222404

Homepage URL


Email

y.okada@med.showa-u.ac.jp


Sponsor or person

Institute

Showa medical university

Institute

Department

Personal name



Funding Source

Organization

none

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

Showa Medical University Ethics Committee

Address

1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan

Tel

0337848019

Email

zaimu-n@ofc.showa-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

2026 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

44

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 03 Month 18 Day

Date of IRB

2020 Year 05 Month 15 Day

Anticipated trial start date

2021 Year 01 Month 01 Day

Last follow-up date

2026 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 10 Month 18 Day

Last modified on

2026 Year 10 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072484