UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000057179
Receipt number R000065350
Scientific Title The tumor bed size change after surgery of breast cancer patients undergoing breast conserving therapy.
Date of disclosure of the study information 2025/02/28
Last modified on 2025/02/28 18:23:01

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Basic information

Public title

The tumor bed size change after surgery of breast cancer patients undergoing breast conserving therapy.

Acronym

The tumor bed size change after surgery of breast cancer patients undergoing breast conserving therapy.

Scientific Title

The tumor bed size change after surgery of breast cancer patients undergoing breast conserving therapy.

Scientific Title:Acronym

The tumor bed size change after surgery of breast cancer patients undergoing breast conserving therapy.

Region

Japan


Condition

Condition

breast cancer

Classification by specialty

Breast surgery Radiology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the volumetric change in the postoperative tumor bed right after breast conserving therapy, before, and during radiotherapy, in patients with breast cancer in the Japanese surgical way; suturing of the breast cavity, where approximately the outer one-third of the mammary gland on the skin side would be apposed.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Size difference of the tumor bed on CT of the breast on the next day of breast conserving therapy, before the start of radiotherapy, and before the tumor bed boost.

Key secondary outcomes



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

Other

Interventions/Control_1

In addition to the usual planning CT scan before the start of radiation therapy, CT scans are taken immediately after surgery and before boost irradiation.

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

18 years-old <=

Age-upper limit

100 years-old >

Gender

Male and Female

Key inclusion criteria

All cases scheduled for BCT treatment at our hospital

Key exclusion criteria

N/A

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Anneyuko
Middle name Ikeda
Last name Saito

Organization

Juntendo University Urayasu hospital

Division name

division of Radiation oncology departement of radiology

Zip code

279-0021

Address

2-1-1 Tomioka Urayasushi Chibaken

TEL

047-353-3111

Email

anne@juntendo.ac.jp


Public contact

Name of contact person

1st name Anneyuko
Middle name Ikeda
Last name Saito

Organization

Juntendo University Urayasu Hospital

Division name

Division of radiation oncology department of radiology

Zip code

279-0021

Address

2-1-1 Tomioka Urayasushi Chibaken

TEL

047-353-3111

Homepage URL


Email

anne@juntendo.ac.jp


Sponsor or person

Institute

Juntendo University

Institute

Department

Personal name



Funding Source

Organization

None

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

Juntendo University IRB

Address

2-1-1 Hongo Bunkyoku Tokyoto

Tel

03-5802-1584

Email

hongo-rinri@juntendo.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 02 Month 28 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

46

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

No longer recruiting

Date of protocol fixation

2018 Year 01 Month 16 Day

Date of IRB

2018 Year 01 Month 16 Day

Anticipated trial start date

2018 Year 12 Month 01 Day

Last follow-up date

2025 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 02 Month 28 Day

Last modified on

2025 Year 02 Month 28 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000065350