UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060076
Receipt number R000068704
Scientific Title A Study on AI-Based Assessment of Ulcerative Colitis Severity Using Abdominal CT Images
Date of disclosure of the study information 2025/12/13
Last modified on 2025/12/13 21:19:54

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Basic information

Public title

A Study on AI-Based Assessment of Ulcerative Colitis Severity Using Abdominal CT Images

Acronym

AI-Based Assessment of UC Severity Using CT

Scientific Title

A Study on AI-Based Assessment of Ulcerative Colitis Severity Using Abdominal CT Images

Scientific Title:Acronym

AI-Based Assessment of UC Severity Using CT

Region

Japan


Condition

Condition

Ulcerative colitis patients

Classification by specialty

Gastroenterology Radiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To develop an artificial intelligence (AI) model with diagnostic accuracy comparable to that of expert physicians for assessing the severity of ulcerative colitis using abdominal CT images.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Association Between AI-Based Assessment of Intestinal Inflammation Using CT Images and Clinical and Endoscopic Disease Activity

Key secondary outcomes

1. Association Between CT Findings and Clinical Disease Activity (MHLW Criteria and Partial Mayo Score)
2. Association Between CT Findings and Endoscopic Disease Activity (Mayo Endoscopic Subscore [MES])
3. Association Between CT Findings and Laboratory Biomarkers, Including Blood Tests (CRP, LRG), Stool Tests (Fecal Calprotectin [FCP]), and Urine Tests (PEG-MUM)


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

100 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Derivation Dataset for AI Model Development:
Patients with ulcerative colitis who underwent abdominal CT examinations at Aizu Medical Center Hospital between May 2013 and August 2025.

2. Test Dataset for AI Model Validation:
Patients with ulcerative colitis who underwent abdominal CT examinations at Jichi Medical University Hospital or Takeda General Hospital between May 2013 and August 2025.

Key exclusion criteria

Patients whose ulcerative colitis disease activity was not evaluated by colonoscopy within +-2 weeks of the CT examination.

Target sample size

200


Research contact person

Name of lead principal investigator

1st name Kazutomo
Middle name
Last name Togashi

Organization

Fukushima Medical University, Aizu Medical Center

Division name

Department of Gastroenterology

Zip code

969-3492

Address

21-2 Maeda, Tanisawa, Kawahigashi-machi, Aizuwakamatsu-shi, Fukushima, Japan

TEL

0242-75-2100

Email

togashik@fmu.ac.jp


Public contact

Name of contact person

1st name Masato
Middle name
Last name Aizawa

Organization

Fukushima Medical University, Aizu Medical Center

Division name

Department of Gastroenterology

Zip code

969-3492

Address

21-2 Maeda, Tanisawa, Kawahigashi-machi, Aizuwakamatsu-shi, Fukushima, Japan

TEL

0242-75-2100

Homepage URL


Email

aizawa-m@fmu.ac.jp


Sponsor or person

Institute

Fukushima Medical University

Institute

Department

Personal name



Funding Source

Organization

Fukushima Medical University

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Institutional Review Board of Fukushima Medical University

Address

1 Hikarigaoka, Fukushima-city, Japan

Tel

024-547-1825

Email

fmucrb@fmu.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

会津医療センター(福島県)、自治医科大学(栃木県)、竹田綜合病院(福島県)


Other administrative information

Date of disclosure of the study information

2025 Year 12 Month 13 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

Enrolling by invitation

Date of protocol fixation

2025 Year 08 Month 31 Day

Date of IRB

2025 Year 10 Month 27 Day

Anticipated trial start date

2025 Year 10 Month 27 Day

Last follow-up date

2026 Year 09 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

We will develop an artificial intelligence system to automatically assess disease activity in ulcerative colitis using CT imaging data from Aizu Medical Center Hospital, and evaluate its diagnostic performance using CT imaging data from Jichi Medical University Hospital and Takeda General Hospital.


Management information

Registered date

2025 Year 12 Month 13 Day

Last modified on

2025 Year 12 Month 13 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068704