| Unique ID issued by UMIN | UMIN000063576 |
|---|---|
| Receipt number | R000072743 |
| Scientific Title | Evaluation of the Feasibility of Early Detection of Immune-Related Adverse Events and Usability of a Smartphone Application in Patients with Liver Cancer Receiving Immune Checkpoint Inhibitor Therapy in an Outpatient Setting: A Single-Arm Exploratory Prospective Study |
| Date of disclosure of the study information | 2026/11/10 |
| Last modified on | 2026/11/10 09:56:36 |
A Study of the Usability and Usefulness of a Smartphone Application for Early Detection of Adverse Events in Patients with Liver Cancer Receiving Immune Checkpoint Inhibitors
Liver Cancer AE App Study
Evaluation of the Feasibility of Early Detection of Immune-Related Adverse Events and Usability of a Smartphone Application in Patients with Liver Cancer Receiving Immune Checkpoint Inhibitor Therapy in an Outpatient Setting: A Single-Arm Exploratory Prospective Study
Liver Cancer irAE App Feasibility Study
| Japan |
Hepatocellular Carcinoma
| Hepato-biliary-pancreatic medicine | Nursing | Adult |
Malignancy
NO
This study aims to explore the usability (effectiveness, efficiency, and satisfaction) of a smartphone application designed to support the early detection of immune-related adverse events (irAEs) in patients with primary liver cancer receiving immune checkpoint inhibitor (ICI) therapy in an outpatient setting. It also aims to assess the feasibility of early detection of adverse events by healthcare professionals using the application. Additionally, application usage, feedback from patients and healthcare professionals, and areas for improvement will be evaluated to inform future clinical implementation and randomized controlled trials.
Others
Evaluation of the usability of a smartphone application and the feasibility of early detection of immune-related adverse events
Exploratory
Pragmatic
Not applicable
We will assess the smartphone application's usability using a patient satisfaction questionnaire 6-8 weeks after the application's initiation.
1. Effectiveness of the Application: The ease of use, clarity of instructions, and comprehensibility of the application interface will be evaluated using a patient usability questionnaire at 3-4 weeks and again at 6-8 weeks after the initiation of application use.
2. Efficiency of the Application: The ease of operation, time required for use, responsiveness, and readability of text will be assessed through a patient usability questionnaire at 3-4 weeks and again at 6-8 weeks.
3. Feasibility of Early Detection of Immune-Related Adverse Events: The feasibility of early detection of adverse events, including immune-related adverse events (irAEs), will be investigated through patient-reported symptoms and the review of these reports by healthcare professionals during the application-use period of 6-8 weeks.
4. User Experience and Areas for Improvement: Patient experiences, perceptions of application functions, and suggestions for improvement will be explored through semi-structured interviews conducted at 3-4 weeks and again at 6-8 weeks.
5. Health-Related Quality of Life: Health-related quality of life will be measured using the EORTC QLQ-C30 and EORTC QLQ-HCC18 questionnaires at baseline, at 3-4 weeks, and at 6-8 weeks.ks.
Interventional
Single arm
Non-randomized
Open -no one is blinded
Uncontrolled
NO
NO
Institution is not considered as adjustment factor.
NO
No need to know
1
Prevention
| Device,equipment |
Patients with primary liver cancer who are receiving immune checkpoint inhibitor (ICI) therapy will use a smartphone application designed to aid in the early detection of immune-related adverse events (irAEs) for 6 to 8 weeks.
After providing written informed consent, research staff will help participants install the application on their smartphones and provide instructions on how to use it. They are expected to report their symptoms whenever they notice changes in their health and must submit symptom reports at least once a week, even if they do not experience any changes.
Healthcare professionals, including physicians and nurses, will review the symptoms reported by patients, which will be stored in a secure cloud-based system. Based on these reports, they may contact patients or recommend a medical consultation as needed.
Questionnaire assessments will be conducted at baseline and again at 3 to 4 weeks and 6 to 8 weeks after the application is initiated. Additionally, semi-structured interviews will take place at 3 to 4 weeks and 6 to 8 weeks to evaluate the application's usability and identify areas for improvement.
The application will serve as a research tool to support routine clinical care. Participants will also be instructed to contact the hospital directly by telephone if they experience any urgent symptoms.
| 18 | years-old | <= |
| Not applicable |
Male and Female
1. Patients with primary liver cancer receiving immune checkpoint inhibitor (ICI) therapy at the Department of Gastroenterology, Tokai University Hospital
2. Patients aged 18 years or older
3. Patients without psychiatric disorders or cognitive impairment
4. Patients who can operate a smartphone application independently or with assistance from a cohabiting family member or caregiver
5. Patients who have received sufficient information about the study and provided written informed consent to participate voluntarily
1. Patients who do not meet the inclusion criteria
2. Patients who are considered unsuitable for participation in this study by the principal investigator or other study investigators
20
| 1st name | Masako |
| Middle name | |
| Last name | Shomura |
Tokai University
Faculty of Nursing, Department of Medicine
2591193
Shimokasuya 143, Isehara, Kanagawa, Japan
0463931121
s-masako@tokai.ac.jp
| 1st name | Masako |
| Middle name | |
| Last name | Shomura |
Tokai University
Faculty of Nursing, Department of Medicine
2591193
Shimokasuya 143, Isehara, Kanagawa, Japan
0463931121
s-masako@tokai.ac.jp
Tokai University
Masako Shomura
Japan Society for the Promotion of Science
Non profit foundation
Japan
Smileforce Co., Ltd.
Research Ethics Committee, Tokai University School of Medicine
143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
0463931121
tokai-rec@tokai.ac.jp
YES
24R224
Research Ethics Committee, Tokai University School of Medicine
東海大学医学部付属病院(神奈川県)
| 2026 | Year | 11 | Month | 10 | Day |
Unpublished
13
Completed
| 2025 | Year | 05 | Month | 15 | Day |
| 2025 | Year | 06 | Month | 09 | Day |
| 2025 | Year | 11 | Month | 25 | Day |
| 2026 | Year | 11 | Month | 09 | Day |
| 2026 | Year | 11 | Month | 10 | Day |
| 2026 | Year | 11 | Month | 10 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072743