UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059178
Receipt number R000066622
Scientific Title A multicenter retrospective observational study of real-world T-DXd treatment for stage4 HER2-mutated non-small cell lung cancer patients in Japan (REAL-HER2 Study) (WJOG21224L)
Date of disclosure of the study information 2025/09/25
Last modified on 2025/09/24 16:55:14

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Basic information

Public title

A multicenter retrospective observational study of real-world T-DXd treatment for stage4 HER2-mutated non-small cell lung cancer patients in Japan (REAL-HER2 Study) (WJOG21224L)

Acronym

REAL-HER2 Study

Scientific Title

A multicenter retrospective observational study of real-world T-DXd treatment for stage4 HER2-mutated non-small cell lung cancer patients in Japan (REAL-HER2 Study) (WJOG21224L)

Scientific Title:Acronym

REAL-HER2 Study

Region

Japan


Condition

Condition

Lung Cancer

Classification by specialty

Pneumology

Classification by malignancy

Malignancy

Genomic information

YES


Objectives

Narrative objectives1

To investigate real-world treatment patterns in previously treated patients with stage IV HER2-mutant non-small cell lung cancer (NSCLC) in Japan, and to assess the effectiveness and safety of trastuzumab deruxtecan (T-DXd) in routine clinical practice.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

rwPFS (real-world Progression Free Survival)

Key secondary outcomes

1) OS (Overall Survival)
2) TTF (Time to treatment failure)
3) rwORR (Real-world objective response rate)
4) rwDCR (Real-world disease control rate)
5) Treatment duration
6) Adverse Event
7) Analysis of prognostic factors


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 aged >_18 years at the time of first administration of T-DXd.
2.Patients diagnosed with stage IV HER2-mutant non-small cell lung cancer (NSCLC) by February 28, 2025.
3.Patients who received their first dose of T-DXd between August 23, 2023, and February 28, 2025.
4.Patients who received T-DXd as second-line or later therapy for stage IV HER2-mutant NSCLC.
Note: Patients with recurrence after definitive therapy (surgery, definitive chemoradiotherapy, or definitive radiotherapy) are excluded.

Key exclusion criteria

1.Patients who declined to participate in the study.
2.Patients deemed inappropriate for inclusion based on the investigator's judgment.

Target sample size

70


Research contact person

Name of lead principal investigator

1st name Hidetoshi
Middle name
Last name Hayashi

Organization

Kindai University Faculty of Medicine

Division name

Department of Medical Oncology

Zip code

589-8511

Address

377-2 Ohno-higashi, Osaka-Sayama, Osaka

TEL

072-366-0221

Email

hidet31@med.kindai.ac.jp


Public contact

Name of contact person

1st name Naoki
Middle name
Last name Ishizuka

Organization

West Japan Oncology Group

Division name

WJOG datacenter

Zip code

556-0016

Address

Namba Plaza Bldg. 304-1-5-7, Motomachi Naniwa-ku, Osaka 556-0016 JAPAN

TEL

06-6633-7400

Homepage URL

https://www.wjog.jp/

Email

datacenter@wjog.jp


Sponsor or person

Institute

West Japan Oncology Group

Institute

Department

Personal name



Funding Source

Organization

DAIICHI SANKYO CO., LTD.

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

Ethics Committee, Faculty of Medicine, Kinki University

Address

377-2 Ohno-Higashi, Osaka-Sayama, Osaka

Tel

072-366-0221

Email

zizen@med.kindai.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 09 Month 25 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 06 Month 19 Day

Date of IRB

2025 Year 09 Month 09 Day

Anticipated trial start date

2026 Year 01 Month 31 Day

Last follow-up date

2027 Year 11 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Multicenter retrospective cohort study


Management information

Registered date

2025 Year 09 Month 24 Day

Last modified on

2025 Year 09 Month 24 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066622