UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062082
Receipt number R000071012
Scientific Title A Study of the Efficacy of Supportive Psychotherapy for Eating Disorders
Date of disclosure of the study information 2026/07/30
Last modified on 2026/06/25 23:55:34

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Basic information

Public title

A Study of the Efficacy of Supportive Psychotherapy for Eating Disorders

Acronym

Evaluation of the efficacy of supportive psychotherapy for eating disorders

Scientific Title

A Study of the Efficacy of Supportive Psychotherapy for Eating Disorders

Scientific Title:Acronym

Evaluation of the efficacy of supportive psychotherapy for eating disorders

Region

Japan


Condition

Condition

eating disorders

Classification by specialty

Psychiatry

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Evaluation of the efficacy of supportive psychotherapy for eating disorders

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

CGI-I (Clinical Global Impressions-Improvement scale), Clinician Rating Scale at 8 weeks and the endpoint

Key secondary outcomes

At 8 weeks and the endpoint
Body weight
BMI (Body Mass Index)
Frequency of binge eating
Frequency of self-induced vomiting
Amount of laxatives
Eating Disorder Examination-Q
Eating Disorders Inventory-3


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Treatment

Type of intervention

Behavior,custom

Interventions/Control_1

12-Session Supportive Psychotherapy (Based on the manual developed by the Supportive Psychotherapy Working Group of the Japanese Society for Eating Disorders)

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

15 years-old <=

Age-upper limit

30 years-old >

Gender

Male and Female

Key inclusion criteria

Persons diagnosed with anorexia nervosa based on DSM-5 criteria.
Body mass index (BMI) is greater than 14.0 at starting.
Duration of illness less than 4 years
Outpatients only
Persons who can understand the purpose and content of this trial and give voluntary written informed consent.
For participants who are minors, voluntary written informed consent must be obtained from their parent(s) or legal guardian(s).

Key exclusion criteria

Physical Crisis: (1) Body mass index (BMI) < 14 (2) Little or no food intake for more than 10 consecutive days (3) Rapid weight loss of more than 5 kg within one month (4) Severe electrolyte abnormalities
Psychological Crisis: (1) severe suicidal ideation; (2) self-injurious behavior; (3) violence toward others
Presence of clinically significant psychiatric comorbidities, including severe major depressive disorder, obsessive-compulsive disorder, and borderline (emotionally unstable) personality disorder.
Any patient considered unsuitable for study participation by the principal investigator at the participating study site.

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Toshihihiko
Middle name
Last name Nagata

Organization

Mental Clinic of Dr. Nagata in Nanba

Division name

Director

Zip code

542-0076

Address

SAN-EI-Midosuji Bldg. 3F, 3-5-8 Nanba, Chuo-Ku, Osaka

TEL

+81-6-6645-1455

Email

clinic@nanba-nagata.com


Public contact

Name of contact person

1st name Toshihihiko
Middle name
Last name Nagata

Organization

Mental Clinic of Dr. Nagata in Nanba

Division name

Director

Zip code

542-0076

Address

SAN-EI-Midosuji Bldg. 3F, 3-5-8 Nanba, Chuo-Ku, Osaka

TEL

+81-6-6645-1455

Homepage URL


Email

clinic@nanba-nagata.com


Sponsor or person

Institute

Mental Clinic of Dr. Nagata in Nanba

Institute

Department

Personal name



Funding Source

Organization

Mental Clinic of Dr. Nagata in Nanba

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, Japanese Association of Neuro-psychiatric Clinics

Address

Miyata Building 7F, 1-38-2 Yoyogi, Shibuya-ku, Tokyo 151-0053, Japan

Tel

03-3320-1423

Email

https://japc.or.jp/japc_contact/


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

北海道大学 大学院医学院健康管理医学教室
金沢大学附属病院 神経科精神科
信州大学医学部精神医学教室
東尾張病院
京都大学医学部附属病院精神科神経科
京都府立医科大学大学院医学研究科精神機能病態学
奈良県立医科大学 精神医学講座
大阪大学大学院連合小児発達学研究科 附属子どものこころの分子統御機構研究センター
大阪公立大学大学院医学研究科神経精神医学
兵庫医科大学精神科神経科学講座
福井大学 医学系部門 病態制御医学講座 精神医学
広島大学保健管理センター
山口大学医学部附属病院 精神科神経科
壱燈会 なんば・ながたメンタルクリニック


Other administrative information

Date of disclosure of the study information

2026 Year 07 Month 30 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

Open public recruiting

Date of protocol fixation

2026 Year 06 Month 13 Day

Date of IRB

2026 Year 06 Month 13 Day

Anticipated trial start date

2026 Year 06 Month 25 Day

Last follow-up date

2027 Year 12 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

2026 Year 06 Month 27 Day

Last modified on

2026 Year 06 Month 25 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071012