UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062598
Receipt number R000071239
Scientific Title Multicenter Prospective Observational Study of the Safety and Efficacy of ICI Rechallenge After Severe ICI-Induced Liver Injury
Date of disclosure of the study information 2026/08/18
Last modified on 2026/08/18 09:58:30

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Basic information

Public title

Multicenter Prospective Observational Study of Immune Checkpoint Inhibitor Rechallenge After Recovery From Severe ICI-Induced Liver Injury

Acronym

ICI-Liver Injury Rechallenge Study

Scientific Title

Multicenter Prospective Observational Study of the Safety and Efficacy of ICI Rechallenge After Severe ICI-Induced Liver Injury

Scientific Title:Acronym

ICI-Liver Injury Rechallenge Study

Region

Japan


Condition

Condition

Patients with malignancies who experienced Grade 3 or higher immune checkpoint inhibitor-induced liver injury

Classification by specialty

Hepato-biliary-pancreatic medicine Hematology and clinical oncology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To prospectively follow patients who have recovered from Grade 3 or higher ICI-induced liver injury and undergo ICI rechallenge as part of routine clinical care, and to evaluate the recurrence rate of Grade 2 or higher ICI-induced liver injury within 6 months after rechallenge, the severity of recurrent liver injury, other immune-related adverse events, and antitumor efficacy. The study will also explore factors associated with the risk of liver injury recurrence using clinical data, blood biomarkers, and liver biopsy findings.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Recurrence rate of Grade 2 or higher ICI-induced liver injury within 6 months after ICI rechallenge

Key secondary outcomes

Severity of recurrent ICI-induced liver injury after ICI rechallenge
Immunosuppressive treatment for recurrent ICI-induced liver injury
Incidence of immune-related adverse events involving organs other than the liver after ICI rechallenge
Objective response rate
Disease control rate
Duration of treatment after ICI rechallenge
Reasons for treatment discontinuation
Progression-free survival
Overall survival
Clinical factors associated with the risk of recurrent ICI-induced liver injury
Exploratory biomarker analyses using blood samples and existing liver biopsy specimens


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) Age 18 years or older
2) History of ICI treatment for a malignant tumor
3) Recovery after grade 3 or higher ICI-induced liver injury
4) The treating physician or clinical team has carefully assessed the risks and benefits and determined that ICI retreatment is clinically appropriate

Key exclusion criteria

Patients who do not provide written informed consent to participate in the study

Target sample size

150


Research contact person

Name of lead principal investigator

1st name Takanori
Middle name
Last name Ito

Organization


Nagoya University Hospital

Division name

Department of Gastroenterology and Hepatology

Zip code

466-8560

Address

9th Floor, Medical Science Research Building 1, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan

TEL

052-744-2169

Email

ito.takanori.d9@f.mail.nagoya-u.ac.jp


Public contact

Name of contact person

1st name Kazuyuki
Middle name
Last name Mizuno

Organization

Nagoya University Hospital

Division name

Department of Clinical Oncology and Chemotherapy

Zip code

466-8560

Address

9th Floor, Medical Science Research Building 1, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi

TEL

052-744-2169

Homepage URL


Email

mizuno.kazuyuki.g2@f.mail.nagoya-u.ac.jp


Sponsor or person

Institute

Nagoya University

Institute

Department

Personal name



Funding Source

Organization

Ministry of Education, Culture, Sports, Science and Technology, Japan

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)

Takeda Science Foundation


IRB Contact (For public release)

Organization

Bioethics Review Committee, Nagoya University Graduate School of Medicine and School of Medicine

Address

65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan

Tel

052-744-2423

Email

iga-shinsa@t.mail.nagoya-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 08 Month 18 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 04 Day

Date of IRB

2026 Year 04 Month 14 Day

Anticipated trial start date

2026 Year 09 Month 01 Day

Last follow-up date

2031 Year 12 Month 31 Day

Date of closure to data entry

2031 Year 12 Month 31 Day

Date trial data considered complete

2032 Year 03 Month 31 Day

Date analysis concluded

2032 Year 12 Month 31 Day


Other

Other related information

This is a multicenter prospective cohort-type observational study. ICI retreatment is not assigned by the study protocol; independently of study participation, the treating physician or clinical team determines retreatment as part of routine clinical care after assessing the risks and benefits. During the three-year enrollment period, consecutive eligible patients who provide written informed consent at participating institutions will be registered. Patients will be prospectively followed using REDCap. Collected data will include patient characteristics, malignancy and treatment history, initial ICI treatment, onset, severity and management of the initial liver injury, type and timing of ICI retreatment, laboratory findings, recurrent liver injury, other immune-related adverse events, antitumor response, progression-free survival and overall survival. With additional consent, blood samples will be obtained before retreatment and at recurrence of liver injury for exploratory analyses of inflammatory cytokines and chemokines, immune-related proteins, autoantibodies, immunoglobulins and immune-cell subsets. Existing liver biopsy specimens obtained for clinical purposes may also be analyzed to explore pathologic predictors of recurrence.


Management information

Registered date

2026 Year 08 Month 18 Day

Last modified on

2026 Year 08 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071239