UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000060953
Receipt number R000069753
Scientific Title Identification of Factors Associated With Psychiatric Readmission and Evaluation of Practice Adjustment Based on These Findings in Day-Care Hospital Users: A Single-Center Two-Phase Study Combining a Retrospective Observational Study and a Prospective Longitudinal Study
Date of disclosure of the study information 2026/03/20
Last modified on 2026/03/16 20:09:37

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Basic information

Public title

Study on Preventing Psychiatric Readmission to Support Community Living in Day-Care Hospital Users

Acronym

Readmission Prevention and Life Support DC Study

Scientific Title

Identification of Factors Associated With Psychiatric Readmission and Evaluation of Practice Adjustment Based on These Findings in Day-Care Hospital Users: A Single-Center Two-Phase Study Combining a Retrospective Observational Study and a Prospective Longitudinal Study

Scientific Title:Acronym

Readmission-Associated Determinants And Response in Day-Care Hospital Study

Region

Japan


Condition

Condition

Psychiatry

Classification by specialty

Psychiatry

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to identify factors associated with psychiatric readmission among users of psychiatric day care and to examine whether organizing and adjusting day care practice and support systems based on these findings may contribute to reducing or preventing readmission. In Study 1, a retrospective observational study will be conducted among users of a psychiatric day care center to identify factors associated with readmission, including daily functioning, subjective recovery, interpersonal difficulties, and service-related characteristics. In Study 2, day care practice organized and adjusted on the basis of the findings from Study 1 will be implemented, and changes in readmission status and related outcomes before and after the intervention will be examined prospectively.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Presence or absence of psychiatric readmission.
The presence or absence of psychiatric readmission during the 1-year period before and the 1-year period after the introduction of adjusted psychiatric day care practice will be assessed. Participants with at least one psychiatric readmission during each period will be classified as yes, and those with no readmission will be classified as no. Assessment will be based on medical records.

Key secondary outcomes

Changes in daily functioning, subjective happiness, subjective recovery, and mental health status
Secondary outcomes will include scores on the Daily Living Functioning Scale (activity domain), the Subjective Happiness Scale (SHS), the Recovery Assessment Scale (RAS), and the 12-item General Health Questionnaire (GHQ-12). These measures will be assessed at baseline and at 1 year after the introduction of adjusted psychiatric day care practice, and changes in scores over time will be examined. Higher scores on the Daily Living Functioning Scale (activity domain), SHS, and RAS indicate better status, whereas higher scores on the GHQ-12 indicate poorer mental health.


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Historical

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Treatment

Type of intervention

Behavior,custom

Interventions/Control_1

Intervention
Based on factors associated with psychiatric readmission identified in Study 1, the content and support system of routine psychiatric day care practice will be organized and adjusted. Specifically, the intervention will include support aimed at maintaining and improving daily functioning, individualized support to facilitate continued day care use, and adjustment of the support environment, including outreach support by staff at the study site. The intervention will be delivered by a multidisciplinary team and individually tailored within existing day care programs according to each participant s age, living background, and service use status. The intervention period will be 1 year.
Control
No separate control intervention will be used. Each participant s psychiatric readmission status during the 1 year period before the intervention will be used as a historical control for comparison.

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

20 years-old <=

Age-upper limit

90 years-old >

Gender

Male and Female

Key inclusion criteria

Participants must meet all of the following criteria:
1) Diagnosed with a psychiatric disorder by the attending physician and receiving treatment for at least 1 year;
2) Aged 20 years or older and younger than 90 years at study entry;
3) Participated in Study 1 and continued to use the psychiatric day care service at the study site after completion of Study 1;
4) Provided written informed consent after receiving a full explanation of the purpose and procedures of the study;
5) Available for follow-up assessment during the study period.

Key exclusion criteria

Participants meeting any of the following criteria will be excluded:
1) Judged by the attending physician to be inappropriate for study participation because of unstable psychiatric condition at study entry;
2) Inability or unwillingness to provide written informed consent for participation in this study;
3) Discontinuation of psychiatric day care use at the study site after completion of Study 1;
4) Judged to be difficult to follow during the study period;
5) Difficulty in collecting the required outcome data during the study period.

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Takuya
Middle name
Last name Noguchi

Organization

Zikei Hospital

Division name

Day-Care Section

Zip code

702-8026

Address

100-2 Urayasu Honmachi Minami ku Okayama shi Okayama Japan

TEL

0862621191

Email

ngc_1557_ngc@chic.ocn.ne.jp


Public contact

Name of contact person

1st name Takuya
Middle name
Last name Noguchi

Organization

Zikei Hospital

Division name

day-Care Section

Zip code

702-8026

Address

100-2 Urayasu Honmachi Minami ku Okayama shi Okayama Japan

TEL

0862621191

Homepage URL


Email

ngc_1557_ngc@chic.ocn.ne.jp


Sponsor or person

Institute

Other

Institute

Department

Personal name

Takuya Noguchi


Funding Source

Organization

Noting

Organization

Division

Category of Funding Organization

Non profit foundation

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Zikei Hospital

Address

100-2 Urayasu Honmachi Minami ku Okayama shi Okayama Japan

Tel

086-262-1191

Email

ngc_1557_ngc@chic.ocn.ne.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

慈圭病院(岡山県)


Other administrative information

Date of disclosure of the study information

2026 Year 03 Month 20 Day


Related information

URL releasing protocol


Publication of results

Partially published


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

Suspended

Date of protocol fixation

2025 Year 03 Month 01 Day

Date of IRB

2025 Year 02 Month 03 Day

Anticipated trial start date

2025 Year 04 Month 01 Day

Last follow-up date

2026 Year 04 Month 01 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 03 Month 16 Day

Last modified on

2026 Year 03 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000069753