UMIN-ICDS Clinical Trial

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

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Basic information

Public title

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

Acronym

Liver Cancer AE App Study

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

Scientific Title:Acronym

Liver Cancer irAE App Feasibility Study

Region

Japan


Condition

Condition

Hepatocellular Carcinoma

Classification by specialty

Hepato-biliary-pancreatic medicine Nursing Adult

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

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.

Basic objectives2

Others

Basic objectives -Others

Evaluation of the usability of a smartphone application and the feasibility of early detection of immune-related adverse events

Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

We will assess the smartphone application's usability using a patient satisfaction questionnaire 6-8 weeks after the application's initiation.

Key secondary outcomes

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.


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

No need to know


Intervention

No. of arms

1

Purpose of intervention

Prevention

Type of intervention

Device,equipment

Interventions/Control_1

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.

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. 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

Key exclusion criteria

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

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Masako
Middle name
Last name Shomura

Organization

Tokai University

Division name

Faculty of Nursing, Department of Medicine

Zip code

2591193

Address

Shimokasuya 143, Isehara, Kanagawa, Japan

TEL

0463931121

Email

s-masako@tokai.ac.jp


Public contact

Name of contact person

1st name Masako
Middle name
Last name Shomura

Organization

Tokai University

Division name

Faculty of Nursing, Department of Medicine

Zip code

2591193

Address

Shimokasuya 143, Isehara, Kanagawa, Japan

TEL

0463931121

Homepage URL


Email

s-masako@tokai.ac.jp


Sponsor or person

Institute

Tokai University

Institute

Department

Personal name

Masako Shomura


Funding Source

Organization

Japan Society for the Promotion of Science

Organization

Division

Category of Funding Organization

Non profit foundation

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor

Smileforce Co., Ltd.

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee, Tokai University School of Medicine

Address

143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan

Tel

0463931121

Email

tokai-rec@tokai.ac.jp


Secondary IDs

Secondary IDs

YES

Study ID_1

24R224

Org. issuing International ID_1

Research Ethics Committee, Tokai University School of Medicine

Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

東海大学医学部付属病院(神奈川県)


Other administrative information

Date of disclosure of the study information

2026 Year 11 Month 10 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

13

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

Completed

Date of protocol fixation

2025 Year 05 Month 15 Day

Date of IRB

2025 Year 06 Month 09 Day

Anticipated trial start date

2025 Year 11 Month 25 Day

Last follow-up date

2026 Year 11 Month 09 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 11 Month 10 Day

Last modified on

2026 Year 11 Month 10 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072743