UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058443
Receipt number R000066824
Scientific Title Effects of loving-Kindness Meditation on PTSD and complex PTSD symptoms associated with adverse childhood experiences: A Randomized Controlled Trial
Date of disclosure of the study information 2025/07/15
Last modified on 2025/07/12 16:57:55

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Basic information

Public title

Effects of loving-kindness meditation for adults with adverse childhood experiences: A Randomized Controlled Trial

Acronym

LKM for ACEs

Scientific Title

Effects of loving-Kindness Meditation on PTSD and complex PTSD symptoms associated with adverse childhood experiences: A Randomized Controlled Trial

Scientific Title:Acronym

A RCT study of LKM for PTSD and CPTSD with ACEs

Region

Japan


Condition

Condition

Post-traumatic stress disorder
Complex post-traumatic stress disorder

Classification by specialty

Psychiatry

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study aims to investigate the effects of an internet-based compassion and mindfulness meditation program on psychological distress (primary outcome measures: PTSD and CPTSD symptoms), emotional regulation (secondary outcome measures: resilience, self-compassion, etc.), and well-being (secondary outcome measures: life satisfaction, positive emotions, depression, anxiety, etc.) in adults with ACEs, compared to a waiting list control group (waiting group).

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

The total score of the ITQ [ Time Frame: pre, post, 3 month follow-up , and 6 month follow-up ]
The total score of ITI [ Time Frame: pre, post, 3 month follow-up , and 6 month follow-up ]

Key secondary outcomes

1) The severity ratings of PTSD symptoms by the Clinical Global Impressions Scale - Severity. [Time Frame: pre, post, 3 month follow-up , and 6 month follow-up]
2) Improvements of PTSD symptoms measured by the Clinical Global Impressions -Improvement. [Time Frame: pre, post, 3 month follow-up , and 6 month follow-up]
3) The total score of the PCL-5. [Time Frame: pre, post, 3 month follow-up , and 6 month follow-up]
4) Psychological indices: The Connor-Davidson Resilience Scale, Emotion Regulation Skills Questionnaire, Self-compassion Scale, Self-esteem scale, Watts Connectedness Scale, Nondual Awareness Dimensional Assessment, Five Facet Mindfulness Questionnaire, Satisfaction With Life Scale, Dispositional Positive Emotion Scale, and DASS 21. [Time Frame: pre, post, 3 month follow-up , and 6 month follow-up]


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -investigator(s) and assessor(s) are blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Pseudo-randomization


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

A 12-week loving-kindness meditation program(weekly one and half hour group session, everyday homework)

Interventions/Control_2

A 12-week wait-list control(receiving the same 12-wwek LKM program after the waiting period)

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

75 years-old >=

Gender

Male and Female

Key inclusion criteria

1) Adult between 18 and 75 years
2) Have one or more adverse childhood experience as measured by the ACE.
3) Have one or more self-organization disorders as measured by the ITI.
4) Have online interviews, surveys, and sessions in Japanese.
5) Provide informed consent for participation in 12 week sessions.

Key exclusion criteria

(a) Experienced intervention with meditation or yoga practices
(b) Severe substance use disorders, lifetime history of bipolar I, schizophrenia, schizoaffective or cognitive disorders (assessed by clinical interview)
(c)Actively considering plans of suicide or homicide (assessed by clinical interview)
(d)Severe physical disorders or cognitive disorders (dementia, severe traumatic Brain Injury)
(e) No permission from their physician or psychologist for any psychological problems
(f) Other relevant reason decided by the investigators

Target sample size

72


Research contact person

Name of lead principal investigator

1st name Kohki
Middle name
Last name Arimitsu

Organization

Kwansei Gakuin University

Division name

Department of Psychological Science

Zip code

663-8501

Address

1-155 Uegahara Ichiban-cho, Nishinomiya, Hyogo 662-8501, Japan

TEL

080-1361-9039

Email

caslstudies@gmail.com


Public contact

Name of contact person

1st name Kohki
Middle name
Last name Arimitsu

Organization

Kwansei Gakuin University

Division name

Department of Psychological Sciences

Zip code

662-8501

Address

1-155 Uegahara Ichiban-cho, Nishinomiya, Hyogo 662-8501, Japan

TEL

0798546048

Homepage URL

https://clinical-affective-science.org/LKM.html

Email

caslstudies@gmail.com


Sponsor or person

Institute

Kwansei Gakuin University

Institute

Department

Personal name

Kohki Arimitsu


Funding Source

Organization

Grants-in-Aid for Scientific Research-KAKENHI

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kwansei Gakuin University

Address

2-1, Gakuen, Sanda, Hyogo, Japan, 669-1337

Tel

079-565-9052

Email

med-ethic@kwansei.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

関西学院大学文学部総合心理科学科および心理科学実践センター(兵庫県)


Other administrative information

Date of disclosure of the study information

2025 Year 07 Month 15 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

2025 Year 07 Month 09 Day

Date of IRB

2025 Year 07 Month 09 Day

Anticipated trial start date

2025 Year 07 Month 16 Day

Last follow-up date

2027 Year 03 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 07 Month 12 Day

Last modified on

2025 Year 07 Month 12 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066824