| 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 |
Multicenter Prospective Observational Study of Immune Checkpoint Inhibitor Rechallenge After Recovery From Severe ICI-Induced Liver Injury
ICI-Liver Injury Rechallenge Study
Multicenter Prospective Observational Study of the Safety and Efficacy of ICI Rechallenge After Severe ICI-Induced Liver Injury
ICI-Liver Injury Rechallenge Study
| Japan |
Patients with malignancies who experienced Grade 3 or higher immune checkpoint inhibitor-induced liver injury
| Hepato-biliary-pancreatic medicine | Hematology and clinical oncology |
Malignancy
NO
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.
Safety,Efficacy
Exploratory
Pragmatic
Not applicable
Recurrence rate of Grade 2 or higher ICI-induced liver injury within 6 months after ICI rechallenge
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
Observational
| 18 | years-old | <= |
| Not applicable |
Male and Female
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
Patients who do not provide written informed consent to participate in the study
150
| 1st name | Takanori |
| Middle name | |
| Last name | Ito |
Nagoya University Hospital
Department of Gastroenterology and Hepatology
466-8560
9th Floor, Medical Science Research Building 1, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan
052-744-2169
ito.takanori.d9@f.mail.nagoya-u.ac.jp
| 1st name | Kazuyuki |
| Middle name | |
| Last name | Mizuno |
Nagoya University Hospital
Department of Clinical Oncology and Chemotherapy
466-8560
9th Floor, Medical Science Research Building 1, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi
052-744-2169
mizuno.kazuyuki.g2@f.mail.nagoya-u.ac.jp
Nagoya University
Ministry of Education, Culture, Sports, Science and Technology, Japan
Japanese Governmental office
Japan
Takeda Science Foundation
Bioethics Review Committee, Nagoya University Graduate School of Medicine and School of Medicine
65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
052-744-2423
iga-shinsa@t.mail.nagoya-u.ac.jp
NO
| 2026 | Year | 08 | Month | 18 | Day |
Unpublished
Preinitiation
| 2025 | Year | 11 | Month | 04 | Day |
| 2026 | Year | 04 | Month | 14 | Day |
| 2026 | Year | 09 | Month | 01 | Day |
| 2031 | Year | 12 | Month | 31 | Day |
| 2031 | Year | 12 | Month | 31 | Day |
| 2032 | Year | 03 | Month | 31 | Day |
| 2032 | Year | 12 | Month | 31 | Day |
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.
| 2026 | Year | 08 | Month | 18 | Day |
| 2026 | Year | 08 | Month | 18 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071239