UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059974
Receipt number R000068586
Scientific Title Misleading Islet Markers in Cases Treated with Immunoglobulin Therapy
Date of disclosure of the study information 2026/01/01
Last modified on 2025/12/04 15:47:09

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Basic information

Public title

Misleading Islet Markers in Cases Treated with Immunoglobulin Therapy

Acronym

Misleading Islet Markers in Cases Treated with Immunoglobulin Therapy

Scientific Title

Misleading Islet Markers in Cases Treated with Immunoglobulin Therapy

Scientific Title:Acronym

MIMIC-Ig

Region

Japan


Condition

Condition

Diseases treated with immunoglobulin therapy, such as myasthenia gravis and idiopathic thrombocytopenic purpura

Classification by specialty

Endocrinology and Metabolism

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to determine the proportion of patients who become positive for islet-related autoantibodies after immunoglobulin administration by measuring islet-related autoantibodies (GAD antibody, IA-2 antibody, insulin antibody, and ZnT8 antibody) before and after immunoglobulin therapy.
Another purpose is to determine how long it takes for patients who become positive for islet-related autoantibodies to become negative.

Basic objectives2

Others

Basic objectives -Others

Biomarker Kinetics and Incidence Study

Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

The proportion of patients who seroconvert to positive for one or more islet-associated autoantibodies (GAD antibody, IA-2 antibody, insulin antibody, and ZnT8 antibody) after immunoglobulin therapy (IVIg).

Key secondary outcomes

1) The time it takes for islet-associated autoantibodies to become negative again in patients who became positive after receiving immunoglobulin.
2) The incidence of diabetes.


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

75 years-old >

Gender

Male and Female

Key inclusion criteria

1) Patients who are scheduled to receive immunoglobulin therapy for diseases such as myasthenia gravis and idiopathic thrombocytopenic purpura.
2) Patients who have received a full explanation of and fully understood the details of participating in this study and have voluntarily provided written consent.

Key exclusion criteria

Patients who meet any of the following criteria are ineligible to participate in this study.
1) Patients who have received immunoglobulin therapy within the past six months.
2) Patients who have been diagnosed with diabetes.
3) Patients with one or more of the following: HbA1c 6.5% or higher, fasting blood glucose 126 mg/dL or higher, or casual blood glucose 200 mg/dL or higher.
4) Patients who tested positive for islet-associated autoantibodies (GAD antibody, IA-2 antibody, insulin antibody, ZnT8 antibody) before starting immunoglobulin therapy.
5) Patients who may discontinue outpatient treatment at our hospital due to reasons such as transferring to another hospital or moving within three months of obtaining consent.
6) Patients who are deemed unsuitable for the safe implementation of this study by the principal investigator or co-investigator.

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Jin
Middle name
Last name Kumagai

Organization

Chiba University Hospital

Division name

Department of Diabetes, Metabolism and Endocrinology

Zip code

260-8677

Address

1-8-1 Inohana, Chuo-ku,Chiba, JAPAN

TEL

043-226-2092

Email

kumaj@chiba-u.jp


Public contact

Name of contact person

1st name Jin
Middle name
Last name Kumagai

Organization

Chiba University Hospital

Division name

Department of Diabetes, Metabolism and Endocrinology

Zip code

260-8677

Address

1-8-1 Inohana, Chuo-ku,Chiba, JAPAN

TEL

043-226-2092

Homepage URL


Email

kumaj@chiba-u.jp


Sponsor or person

Institute

Chiba 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

Chiba University Hospital Clinical Research Center

Address

1-8-1 Inohana, Chuo-ku,Chiba, JAPAN

Tel

043-222-7171

Email

hsp-kansaturinri@chiba-u.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

千葉大学医学部附属病院(千葉県)


Other administrative information

Date of disclosure of the study information

2026 Year 01 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 11 Month 28 Day

Date of IRB

2025 Year 11 Month 28 Day

Anticipated trial start date

2026 Year 01 Month 05 Day

Last follow-up date

2028 Year 12 Month 31 Day

Date of closure to data entry

2029 Year 12 Month 31 Day

Date trial data considered complete

2029 Year 12 Month 31 Day

Date analysis concluded

2030 Year 06 Month 30 Day


Other

Other related information

(1) Prospective observational study
(2) Observation and test items
Age, sex, height, weight, lifestyle (e.g., drinking, smoking), employment history, medical history, concomitant medications, family history, type of immunoglobulin therapy, dosage, and frequency of administration
Clinical test results (including biochemistry, hematology, and urinalysis)
GAD antibody, IA-2 antibody, insulin antibody, ZnT8 antibody, blood glucose level, HbA1c, CPR, IRI


Management information

Registered date

2025 Year 12 Month 04 Day

Last modified on

2025 Year 12 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068586