UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056630
Receipt number R000064722
Scientific Title A Retrospective Multi-center Cohort Study Investigating Safety of Sentinel Lymph Node Biopsy in Clinical T3-4c Breast Cancer
Date of disclosure of the study information 2025/01/05
Last modified on 2025/01/05 09:40:58

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Basic information

Public title

A Retrospective Multi-center Cohort Study Investigating Safety of Sentinel Lymph Node Biopsy in Clinical T3-4c Breast Cancer

Acronym

A Retrospective Multi-center Cohort Study Investigating Safety of Sentinel Lymph Node Biopsy in Clinical T3-4c Breast Cancer

Scientific Title

A Retrospective Multi-center Cohort Study Investigating Safety of Sentinel Lymph Node Biopsy in Clinical T3-4c Breast Cancer

Scientific Title:Acronym

A Retrospective Multi-center Cohort Study Investigating Safety of Sentinel Lymph Node Biopsy in Clinical T3-4c Breast Cancer

Region

Japan


Condition

Condition

breast cancer

Classification by specialty

Breast surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

Explore the safety of axillary staging with sentinel lymph nodes in cT3 and T4.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

recurrence free survival

Key secondary outcomes



Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


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


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

cases of cT3-4a-cN0M0 breast cancer who underwent radical surgery at the institution between January 1, 2006 and December 31, 2016

Key exclusion criteria

1. cases in which axillary surgery (SNB or Ax) was not performed
2. cases of positive sentinel node metastasis for which an Ax was omitted
3. cases in which the sentinel node could not be identified and axillary lymph node sampling was performed
4. cases with a history of breast cancer before the diagnosis of cT3-4a-cN0 breast cancer (heterochronic breast cancer), excluding noninvasive ductal carcinoma of the breast
5. cases in which contralateral breast cancer was diagnosed at the same time as the diagnosis of cT3-4a-cN0 breast cancer (contralateral contralateral breast cancer), excluding noninvasive ductal carcinoma of the breast

Target sample size

1000


Research contact person

Name of lead principal investigator

1st name Sayaka
Middle name
Last name Kuba

Organization

Nagasaki University Graduate School of Biomedical Sciences

Division name

Department of Surgery

Zip code

8528501

Address

1-7-1 Sakamoto-Machi, Nagasaki 852-8501, Japan

TEL

0958197316

Email

skuba@nagasaki-u.ac.jp


Public contact

Name of contact person

1st name Sayaka
Middle name
Last name Kuba

Organization

Nagasaki University Graduate School of Biomedical Sciences

Division name

Department of Surgery

Zip code

8528501

Address

1-7-1 Sakamoto-Machi, Nagasaki 852-8501, Japan

TEL

0958197316

Homepage URL


Email

sayaka20041123@yahoo.co.jp


Sponsor or person

Institute

Nagasaki University Graduate School of Biomedical Sciences

Institute

Department

Personal name



Funding Source

Organization

none

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

Nagasaki University Hospital Clinical Research Ethics Committee

Address

1-7-1 Sakamoto, Nagasaki-shi, Nagasaki-ken

Tel

095-819-7229

Email

gaibushikin@ml.nagasaki-u.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 01 Month 05 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

930

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

2022 Year 04 Month 22 Day

Date of IRB

2022 Year 08 Month 30 Day

Anticipated trial start date

2022 Year 08 Month 30 Day

Last follow-up date

2024 Year 01 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

retrospective study


Management information

Registered date

2025 Year 01 Month 05 Day

Last modified on

2025 Year 01 Month 05 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064722