UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059317
Receipt number R000067848
Scientific Title Development and Evaluation of a Remote Support Program Based on the Self-Determination Theory Healthcare Model for Outpatients Undergoing Hemodialysis
Date of disclosure of the study information 2025/10/08
Last modified on 2025/10/07 15:55:12

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Basic information

Public title

Development and Evaluation of a Remote Support Program Based on the Self-Determination Theory Healthcare Model for Outpatients Undergoing Hemodialysis

Acronym

SDT-MI for HD

Scientific Title

Development and Evaluation of a Remote Support Program Based on the Self-Determination Theory Healthcare Model for Outpatients Undergoing Hemodialysis

Scientific Title:Acronym

SDT-MI for HD

Region

Japan


Condition

Condition

End-stage renal disease (outpatients receiving hemodialysis)

Classification by specialty

Nephrology Nursing Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to develop a remote support program to implement online motivational interviewing based on the framework of the Self-Determination Theory Healthcare Model for outpatients receiving hemodialysis at dialysis facilities, and to conduct an interventional study to evaluate its effects on optimizing interdialytic weight gain, improving self-management behaviors, and enhancing quality of life (QOL).

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

nterdialytic weight gain (IDWG).
The mean IDWG will be measured at baseline, immediately after the intervention, 3 months, and 6 months after completion, and changes over time will be evaluated.

Key secondary outcomes

1. Psychological variables based on the Self-Determination Theory constructs
Assessed using the Japanese version of the Self-Determination Theory measurement scales (Yamamoto et al., 2009) at baseline, immediately after the intervention, 3 months, and 6 months after the intervention.

Health Care Climate Questionnaire (HCCQ): one-factor, 6-item scale; 7-point Likert scale (1 = not at all true - 7 = very true).
Treatment Self-Regulation Questionnaire (TSRQ): three-factor, 15-item scale; 7-point Likert scale (1 = not at all true - 7 = very true).
Perceived Competence Scale (PCS): one-factor, 4-item scale; 7-point Likert scale (1 = not at all true - 7 = very true).

2. Self-management behavior
Assessed using the Hemodialysis Self-Management Instrument (HDSMI, Japanese version; Nozawa et al., 2007) at baseline, immediately after the intervention, 3 months, and 6 months after the intervention.

3. Health-related quality of life (HR-QOL)
Assessed using the Japanese version of the SF-8 Health Survey (Fukuhara et al., 2005) at baseline, immediately after the intervention, 3 months, and 6 months after the intervention.
The SF-8 consists of eight subscales (physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional, and mental health) and yields Physical Component Summary (PCS) and Mental Component Summary (MCS) scores.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Active

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is considered as a block.

Blocking

NO

Concealment

Numbered container method


Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Behavior,custom

Interventions/Control_1

As "educational material-based knowledge provision," participants will receive a pamphlet summarizing key points necessary for appropriate control of interdialytic weight gain, which will be distributed and explained in person.
Subsequently, five online counseling sessions (approximately 30 minutes each) will be conducted based on the framework of the Self-Determination Theory healthcare model, using motivational interviewing (MI) techniques.

During each session, a goal-setting sheet that participants can complete themselves will be used as supplementary material and shared on screen to facilitate the following steps:
(1) clarification of personal values, (2) collaborative setting of specific behavioral goals, (3) review of progress and adjustment of plans, and (4) resetting of goals.
These processes aim to enhance intrinsic motivation and promote behavioral change.

Interventions/Control_2

Distribute a pamphlet on appropriate control of interdialytic weight gain and provide only educational material-based knowledge provision. No online interviews will be conducted.

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

90 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Outpatients receiving maintenance hemodialysis (HD) three times per week at participating facilities
2. Patients who have been on dialysis for more than 6 months
3. Mean interdialytic weight gain over the past 4 weeks of >=4% after one non-dialysis day or >=6% after two non-dialysis days
4. Able to operate a smartphone

Key exclusion criteria

1.Cognitive impairment
2.Severe comorbidities such as significant visual impairment, lower limb amputation, cerebrovascular disease, heart failure, or malignancy

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Tamako
Middle name
Last name Yonezawa

Organization

Kobe Women's University

Division name

Doctoral Program, Graduate School of Nursing

Zip code

650-0046

Address

4-7-2 Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo 650-0046, Japan

TEL

078-303-4705

Email

k5820103@suma.kobe-wu.ac.jp


Public contact

Name of contact person

1st name Tamako
Middle name
Last name Yonezawa

Organization

Kobe Women's University

Division name

Doctoral Program, Graduate School of Nursing

Zip code

650-0046

Address

4-7-2 Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo 650-0046, Japan

TEL

078-303-4705

Homepage URL


Email

k5820103@suma.kobe-wu.ac.jp


Sponsor or person

Institute

Kobe Women's University

Institute

Department

Personal name

Tamako Yonezawa


Funding Source

Organization

Takarazuka University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee, Kobe Women's University and Kobe Women's Junior College

Address

4-7-2 Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo 650-0046, Japan

Tel

078-303-4705

Email

info@kobe-wu.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



Other administrative information

Date of disclosure of the study information

2025 Year 10 Month 08 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 18 Day

Date of IRB


Anticipated trial start date

2025 Year 12 Month 10 Day

Last follow-up date

2028 Year 03 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

2025 Year 10 Month 07 Day

Last modified on

2025 Year 10 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067848