UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056846
Receipt number R000064972
Scientific Title Evaluating the Use of a Video-assisted Informed Consent Tool "MediOS" to Reduce Decision Conflict in Gastric Cancer Surgery: A Single-Center Open-Label Randomized Controlled Trial
Date of disclosure of the study information 2025/01/28
Last modified on 2025/01/31 16:39:28

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Basic information

Public title

Evaluating the Use of a Video-assisted Informed Consent Tool to Reduce Decision Conflict in Gastric Cancer Surgery: A Single-Center Open-Label Randomized Controlled Trial

Acronym

Evaluating the Use of a Video-assisted Informed Consent Tool to Reduce Decision Conflict in Gastric Cancer Surgery: A Single-Center Open-Label Randomized Controlled Trial

Scientific Title

Evaluating the Use of a Video-assisted Informed Consent Tool "MediOS" to Reduce Decision Conflict in Gastric Cancer Surgery: A Single-Center Open-Label Randomized Controlled Trial

Scientific Title:Acronym

Evaluating the Use of a Video-assisted Informed Consent Tool to Reduce Decision Conflict in Gastric Cancer Surgery: A Single-Center Open-Label Randomized Controlled Trial

Region

Japan


Condition

Condition

Gastric Cancer

Classification by specialty

Surgery in general Hepato-biliary-pancreatic surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To explore the impact of watching a video after preoperative informed consent on decisional conflict and IC time.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Phase II


Assessment

Primary outcomes

Decisional Conflict Scale Score

Key secondary outcomes

Change in Informed Consent Time
Change in Total Time Required for Outpatient Consultations
Surgery-related Parameters: Operative Time, Blood Loss, Postoperative Complications
Exploratory Evaluation Items


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Numbered container method


Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Other

Interventions/Control_1

Pre-Consultation Video (PreVid) Group: Patients viewed the video before the face-to-face consultation with the surgeon.

Interventions/Control_2

Post-Consultation Video Group (PostVid) Group: Patients viewed the video after the physician's consultation.

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

20 years-old <=

Age-upper limit

75 years-old >

Gender

Male and Female

Key inclusion criteria

Patients who have provided written informed consent based on sufficient explanation, thorough understanding, and their own free will.
Patients aged 20 years or older but under 75 years at the time of consent.
Patients diagnosed with clinically resectable gastric cancer at stage I-III.
Patients scheduled for informed consent for elective surgery
Patients for whom the principal investigator or sub-investigators confirm that the attending physician can clearly present the treatment plan during the initial consultation based on prior diagnostic results.

Key exclusion criteria

Patients with a history of gastric cancer surgery (e.g., remnant gastric cancer patients).
Patients classified as Grade 3 or higher by the American Society of Anesthesiologists (ASA).
Patients are scheduled for neoadjuvant chemotherapy (NAC).
Patients with comorbid psychiatric disorders, psychological symptoms, or cognitive impairment, were deemed unable to participate in the study.
Patients or accompanying family members unable to operate the MediOS system.
Any other patients deemed unsuitable by the principal investigator or sub-investigators.

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Koichi
Middle name
Last name Suda

Organization

Fujita Health University

Division name

Department of Surgery

Zip code

470-1192

Address

1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi

TEL

0562-93-9254

Email

ko-suda@nifty.com


Public contact

Name of contact person

1st name Susumu
Middle name
Last name Shibasaki

Organization

Fujita Health University

Division name

Department of Surgery

Zip code

470-1192

Address

1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi

TEL

0562-93-9254

Homepage URL


Email

susumu.shibasaki@fujita-hu.ac.jp


Sponsor or person

Institute

Fujita Health University

Institute

Department

Personal name



Funding Source

Organization

NA

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

NA

Address

Same as above

Tel

-

Email

irb-sys@fujita-hu.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

2025 Year 01 Month 28 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

60

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

No longer recruiting

Date of protocol fixation

2022 Year 04 Month 25 Day

Date of IRB

2022 Year 06 Month 01 Day

Anticipated trial start date

2022 Year 07 Month 01 Day

Last follow-up date

2024 Year 10 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 01 Month 28 Day

Last modified on

2025 Year 01 Month 31 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064972