UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062267
Receipt number R000071238
Scientific Title A Cohort Study of Intravenous Immunoglobulin Dosing Interval Adherence in Maintenance Therapy for Chronic Inflammatory Demyelinating Polyneuropathy Using Japanese Real-World Data
Date of disclosure of the study information 2026/07/17
Last modified on 2026/07/17 13:54:08

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Basic information

Public title

A Study of Infusion Treatment Intervals in Patients Receiving Maintenance Therapy for Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)

Acronym

CIDP-IVIG Interval Study

Scientific Title

A Cohort Study of Intravenous Immunoglobulin Dosing Interval Adherence in Maintenance Therapy for Chronic Inflammatory Demyelinating Polyneuropathy Using Japanese Real-World Data

Scientific Title:Acronym

CIDP-IVIG Interval Study

Region

Japan


Condition

Condition

Chronic inflammatory demyelinating polyneuropathy (CIDP)

Classification by specialty

Neurology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To characterize adherence to IVIG dosing intervals in maintenance therapy for CIDP in routine clinical practice.

Basic objectives2

Others

Basic objectives -Others

To explore the association between adherence to IVIG dosing intervals in maintenance therapy for CIDP and patient characteristics, treatment patterns, and comorbidities in routine clinical practice.

Trial characteristics_1

Exploratory

Trial characteristics_2

Explanatory

Developmental phase

Phase IV


Assessment

Primary outcomes

As a measure of adherence to the administered IVIG dosing interval, the proportion of days covered (PDC) will be assessed during the periods from the index date to Week 12, Weeks 13-24, Weeks 25-48, and Weeks 49-96.

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


Not applicable

Gender

Male and Female

Key inclusion criteria

1. A confirmed diagnosis of CIDP was recorded during the calendar month including the first day of the IVIG induction therapy cycle or within the preceding 6 months.
2. A nerve conduction study was recorded during the calendar month including the first day of the IVIG induction therapy cycle or within the preceding 6 months.
3. The patient was aged 18 years or older on the first day of the IVIG induction therapy cycle.

Key exclusion criteria

Patients who had a confirmed diagnosis (excluding suspected diagnoses) of an autoimmune neuropathy requiring differential diagnosis from CIDP during the calendar month including the first day of the IVIG induction therapy cycle (inclusive) or within the preceding 6 months. For the purposes of this study, the following conditions are considered autoimmune neuropathies:
-Multifocal motor neuropathy(MMN)
-Guillain-Barre syndrome (GBS)
-Fisher syndrome
-Anti-myelin-associated glycoprotein (anti-MAG) neuropathy
-POEMS syndrome
-Paraneoplastic neurological syndrome and Lambert-Eaton myasthenic syndrome (LEMS}

Target sample size

1000


Research contact person

Name of lead principal investigator

1st name Yuji
Middle name
Last name Tomizawa

Organization

Juntendo University

Division name

Department of Neurology, Faculty of Medicine and Graduate School of Medicine

Zip code

113-8431

Address

3-1-3 Hongo, Bunkyo-ku, Tokyo

TEL

+81-3-3813-3111

Email

zawa@juntendo.ac.jp


Public contact

Name of contact person

1st name Mamoru
Middle name
Last name Doi

Organization

CSL Behring K.K.

Division name

Medical Affairs

Zip code

107-0061

Address

1-2-3 Kita-Aoyama, Minato-ku, Tokyo

TEL

0120-534-587

Homepage URL


Email

JPN.Medical_Affairs@cslbehring.com


Sponsor or person

Institute

CSL Behring K.K.

Institute

Department

Personal name



Funding Source

Organization

CSL Behring K.K.

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

None

Address

None

Tel

+81 (--) ---- -----

Email

none@none.org


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 07 Month 17 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

2026 Year 07 Month 07 Day

Date of IRB


Anticipated trial start date

2026 Year 07 Month 07 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

Analysis using an existing database containing anonymized information


Management information

Registered date

2026 Year 07 Month 17 Day

Last modified on

2026 Year 07 Month 17 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071238