UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000057809
Receipt number R000066077
Scientific Title Effect of seated vs supine posture during docetaxel infusion on left lower-limb extracellular water and clinical edema in patients with breast cancer: a single-center, parallel-group, open-label, exploratory randomized controlled trial
Date of disclosure of the study information 2025/05/09
Last modified on 2026/05/09 19:58:52

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Basic information

Public title

A study of how seated or supine posture during docetaxel infusion affects lower-limb water content in patients with breast cancer

Acronym

DTX-POSTUREl

Scientific Title

Effect of seated vs supine posture during docetaxel infusion on left lower-limb extracellular water and clinical edema in patients with breast cancer: a single-center, parallel-group, open-label, exploratory randomized controlled trial

Scientific Title:Acronym

DTX-POSTURE

Region

Japan


Condition

Condition

Breast Cancer

Classification by specialty

Breast surgery Nursing

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To exploratorily evaluate the effects of sitting versus lying down postures on lower limb fluid volume during docetaxel administration in breast cancer patients.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Body composition

Key secondary outcomes

Incidence of edema


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Numbered container method


Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Other

Interventions/Control_1

Seated group: After randomization, participants receive docetaxel infusion in a seated position in a reclining chair during all 4 cycles of docetaxel therapy. The backrest angle may be adjusted for patient comfort, but both lower limbs are kept dependent toward the floor during infusion. The docetaxel dose, infusion time, premedication, fluid administration, supportive care, and usual care are determined by the attending physician and institutional practice. Compression therapy, dietary guidance, diuretics, or other edema- or fluid-related management are not specified as study interventions.

Interventions/Control_2

Supine group: After randomization, participants receive docetaxel infusion in a supine position on a bed during all 4 cycles of docetaxel therapy. The trunk and lower limbs are kept approximately horizontal. Use of a pillow is allowed, but additional cushions for the purpose of lower-limb elevation are not used. The docetaxel dose, infusion time, premedication, fluid administration, supportive care, and usual care are determined by the attending physician and institutional practice. Compression therapy, dietary guidance, diuretics, or other edema- or fluid-related management are not specified as study interventions.

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

100 years-old >=

Gender

Male and Female

Key inclusion criteria

-Patients who have received sufficient explanation and provided written informed consent voluntarily
-Patients who are 18 years or older at the time of consent

Key exclusion criteria

Patients will be excluded if they meet any of the following conditions:

-Presence of lower limb lymphedema

-Diagnosed with conditions that may cause edema:
Deep vein thrombosis of the lower limbs
Severe cardiac or pulmonary disease
Severe hepatic or renal dysfunction
Other metabolic disorders

-Implanted pacemaker

-Unable to maintain posture required for ultrasound examination

-Any other reason deemed inappropriate by the principal or co-investigators

Rationale: To exclude confounding causes of edema and ensure safety and data validity.

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Nagae
Middle name
Last name KAWASUSO

Organization

Fujita Health University

Division name

Department of Gerontological Nursing, School of Nursing, Faculty of Health Sciences, Fujita Health University

Zip code

470-1192

Address

1-98 Dengakugakubo, Kutsukake-cho,Toyoake, Aichi

TEL

0562-93-9084

Email

nagae.kawasuso@fujita-hu.ac.jp


Public contact

Name of contact person

1st name Nagae
Middle name
Last name KAWASUSO

Organization

Fujita Health University

Division name

Faculty of Nursing, School of Health Sciences

Zip code

470-1192

Address

1-98 Dengakugakubo, Kutsukake-cho,Toyoake, Aichi

TEL

0562-93-9084

Homepage URL


Email

nagae.kawasuso@fujita-hu.ac.jp


Sponsor or person

Institute

Fujita Health University

Institute

Department

Personal name

Nagae KAWASUSO


Funding Source

Organization

Fujita Health University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Fujita Health University

Address

1-98 Dengakugakubo, Kutsukake-cho,Toyoake, Aichi

Tel

0562-93-2865

Email

f-irb@fujita-hu.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

愛知県


Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 05 Month 09 Day


Related information

URL releasing protocol

https://center6.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=R000066077

Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled

25

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

Completed

Date of protocol fixation

2024 Year 10 Month 24 Day

Date of IRB

2024 Year 12 Month 16 Day

Anticipated trial start date

2025 Year 01 Month 06 Day

Last follow-up date

2026 Year 08 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Study Type: Interventional study (minimally invasive)
Design: Randomized controlled trial (pilot study)
Ethics Approval: Approved by the Ethics Review Committee of Fujita Health University
Data Collection: Body composition via InBody, ultrasound imaging, physical examination, and questionnaires
Data Anonymization: Use of subject codes with strict data protection (password-locked and physically secured)
Participant Considerations: Efforts made to minimize physical and psychological burden and avoid interfering with routine clinical care


Management information

Registered date

2025 Year 05 Month 09 Day

Last modified on

2026 Year 05 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066077