UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000057077
Receipt number R000065145
Scientific Title A multi-institutional retrospective cohort study on dynamics of HER2 expression from primary site to metastatic or recurrent site in breast cancer
Date of disclosure of the study information 2025/02/20
Last modified on 2025/05/23 14:07:38

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Basic information

Public title

A multi-institutional retrospective cohort study on dynamics of HER2 expression from primary site to metastatic or recurrent site in breast cancer

Acronym

HER2 PRIME study(JFMC52-2401-N1)

Scientific Title

A multi-institutional retrospective cohort study on dynamics of HER2 expression from primary site to metastatic or recurrent site in breast cancer

Scientific Title:Acronym

HER2 PRIME study(JFMC52-2401-N1)

Region

Japan


Condition

Condition

Brest Cancer

Classification by specialty

Hematology and clinical oncology Breast surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To elucidate the dynamics of HER2 expression in breast cancer tissues over the course of treatment.

Basic objectives2

Others

Basic objectives -Others

To explore factors related to the dynamics in HER2 expression in breast cancer and optimize anti-HER2 therapy through an understanding of the dynamics of HER2 expression based on clinicopathological and biological characteristics.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

1)HER2 scoring of tumor tissue samples
2)Percentage of HER2-expressing cell composition by staining pattern in tumor tissue samples
3)Changes in HER2 expression from the primary site to metastatic or recurrent site in tumor tissue samples from the same patient

Key secondary outcomes

1)Changes in HER2 expression based on the timing or site of tumor tissue sample collection
2)Clinicopathological factors
3)Overall survival
4)Histological and morphological characteristics
5)Gene profiling
6)Protein expression analysis


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

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1) Patients who are at least 18 years of age or older at the time of diagnosis of invasive breast cancer.
2) Patients diagnosed with histologically invasive breast cancer on or after January 1, 2013.
3) Patients diagnosed with histologically local recurrence or metastatic recurrence by December 31, 2023 after initial surgery for primary breast cancer.
4) Subjects where at least one tissue sample from the primary site (specimen at initial diagnosis and/or surgical resection specimen) and at least one tissue sample from the metastatic or recurrent site (specimen from distant metastatic site and/or specimen from locoregional recurrent site) can be submitted.

Key exclusion criteria

"1) Patients with active multiple cancers at the time of diagnosis of invasive breast cancer
2) Patients judged by the principal investigator or subinvestigator to be inappropriate for this study"

Target sample size

250


Research contact person

Name of lead principal investigator

1st name Shigeru
Middle name
Last name Imoto

Organization

Kyorin University

Division name

School of Medicine, Department of Breast Surgery

Zip code

181-8611

Address

6-20-2 Shinkawa, Mitaka-shi, TOKYO 181-8611 JAPAN

TEL

0422-47-5511

Email

imoto@ks.kyorin-u.ac.jp


Public contact

Name of contact person

1st name Shigeru
Middle name
Last name Imoto

Organization

Japanese Foundation for Multidisciplinary Treatment of Cancer

Division name

Office

Zip code

136-0071

Address

1-38-4, kameido, koto-ku, Tokyo, 136-0071 Japan

TEL

03-5627-7594

Homepage URL


Email

jfmc52@jfmc.or.jp


Sponsor or person

Institute

Japanese Foundation for Multidisciplinary Treatment of Cancer

Institute

Department

Personal name



Funding Source

Organization

DAIICHI SANKYO COMPANY, LIMITED

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Nippon Medical School Foundation Central Ethics Commission

Address

1-1-5 Sendagi, Bunkyo-ku, Tokyo

Tel

03-3822-2131

Email

chuorinri.group@nms.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 20 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

No longer recruiting

Date of protocol fixation

2024 Year 11 Month 05 Day

Date of IRB

2025 Year 01 Month 21 Day

Anticipated trial start date

2025 Year 02 Month 21 Day

Last follow-up date

2025 Year 10 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

None


Management information

Registered date

2025 Year 02 Month 19 Day

Last modified on

2025 Year 05 Month 23 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000065145