UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000061236
Receipt number R000070069
Scientific Title A multicenter repeated point prevalence study of delirium recognition in hospitalized non-cancer patients, comparing 4AT-based assessment by trained raters with clinical documentation in medical records
Date of disclosure of the study information 2026/04/13
Last modified on 2026/04/11 14:40:54

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Basic information

Public title

Multicenter repeated point prevalence study of the recognition gap of delirium in hospitalized non-cancer patients

Acronym

Delirium Recognition Gap Study in Non-cancer Inpatients

Scientific Title

A multicenter repeated point prevalence study of delirium recognition in hospitalized non-cancer patients, comparing 4AT-based assessment by trained raters with clinical documentation in medical records

Scientific Title:Acronym

4AT-based Delirium Recognition Study in Non-cancer Inpatients

Region

Japan


Condition

Condition

Delirium in hospitalized patients with non-cancer progressive life-limiting illnesses

Classification by specialty

Medicine in general Gastroenterology Hepato-biliary-pancreatic medicine
Cardiology Pneumology Nephrology
Neurology Geriatrics

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Delirium is a common and clinically important syndrome among hospitalized patients, and failure to recognize it may lead to inappropriate management and poorer outcomes. However, in hospitalized patients with non-cancer progressive life-limiting illnesses, the gap between delirium detected by a standardized tool and delirium recognized and documented by the clinical team has not been sufficiently studied. This multicenter study aims to estimate the proportion of delirium cases identified by trained raters using the 4AT on the same day that are also recognized and documented as delirium by physicians or nurses in the medical record. In addition, the study will explore point prevalence of delirium, associations of recognition status with outcomes and interventions, and inter-facility variation.

Basic objectives2

Others

Basic objectives -Others

Assessment of real-world delirium recognition in clinical practice

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The proportion of patients judged to have delirium by trained raters using the 4AT on the same day who were also recognized and documented as having delirium in the medical record by physicians or nurses

Key secondary outcomes



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


Not applicable

Gender

Male and Female

Key inclusion criteria

Hospitalized patients meeting all of the following criteria will be included:

Admitted to a general ward of a participating institution.
Have a non-cancer progressive life-limiting illness.
Present in the ward on the study assessment day.
Judged eligible according to the operational criteria predefined in the study protocol.
Delirium assessment can be performed, or the reason for non-availability can be recorded.

Key exclusion criteria

1) Patients managed in the ICU or HCU
2) Patients who declined participation through the opt-out process
3) Patients for whom even minimal required data collection is not feasible on the study day
4) Patients considered inappropriate for inclusion by the principal investigator or subinvestigators

Target sample size

1000


Research contact person

Name of lead principal investigator

1st name Noriyuki
Middle name
Last name Kawabata

Organization

Osaka Rosai Hospital

Division name

Department of Palliative Care

Zip code

591-8025

Address

1179-3 Nagasone-cho Kita-ku Sakai city Osaka

TEL

072-252-3561

Email

off.kawabata@gmail.com


Public contact

Name of contact person

1st name Noriyuki
Middle name
Last name Kawabata

Organization

Osaka Rosai Hospital

Division name

Department of Palliative Care

Zip code

5918025

Address

1179-3 Nagasone-cho Kita-ku Sakai city Osaka

TEL

072-252-3561

Homepage URL


Email

off.kawabata@gmail.com


Sponsor or person

Institute

Osaka Rosai Hospital

Institute

Department

Personal name



Funding Source

Organization

None

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

Osaka Rosai Hospital

Address

1179-3 Nagasone-cho Kita-ku Sakai city Osaka

Tel

072-252-3561

Email

somuk-osakah@m.johas.go.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

2026 Year 04 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

Preinitiation

Date of protocol fixation

2026 Year 02 Month 04 Day

Date of IRB


Anticipated trial start date

2026 Year 06 Month 01 Day

Last follow-up date

2026 Year 11 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

This is a multicenter observational study without intervention, conducted under routine clinical practice. Consent procedures will follow approval by each institutional review board and will be handled using an opt-out approach where applicable.


Management information

Registered date

2026 Year 04 Month 12 Day

Last modified on

2026 Year 04 Month 11 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000070069