UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000051259
Receipt number R000058453
Scientific Title A multicenter prospective observational study to confirm the effectiveness and safety of trastuzumab deruxtecan for unresectable and/or metastatic breast cancer patients with HER2-low expression
Date of disclosure of the study information 2023/06/16
Last modified on 2023/10/02 18:23:58

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Basic information

Public title

A multicenter prospective observational study to confirm the effectiveness and safety of trastuzumab deruxtecan for unresectable and/or metastatic breast cancer patients with HER2-low expression

Acronym

HALLOW study

Scientific Title

A multicenter prospective observational study to confirm the effectiveness and safety of trastuzumab deruxtecan for unresectable and/or metastatic breast cancer patients with HER2-low expression

Scientific Title:Acronym

HALLOW study

Region

Japan


Condition

Condition

Unresectable and/or metastatic breast cancer patients with HER2-low expression

Classification by specialty

Hematology and clinical oncology Breast surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

・To confirm the effectiveness and safety of Trastuzumab Deruxtecan (T-DXd) for breast cancer patients with human epidermal growth factor receptor type 2 (HER2) -low expression in real clinical practice, mainly hormone receptor (HR)negative /HER2-low expression breast cancer among triple-negative breast cancer (TNBC).
・To confirm the effectiveness and safety of T-DXd for patients with breast cancer with brain metastasis in HER2 low expression.
・To evaluate and characterize the differences between HER2 scoring under clinical and central pathological diagnosis for breast cancer patients with HER2-low expression and their influences on effectiveness based on the results of HER2 scoring.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

<Effectiveness and safety endpoints>
・Overall survival (OS)
・Progression-free survival (PFS)
・Time to treatment failure (TTF)
・Time to treatment discontinuation (TTD)
・Time to next treatment (TTNT)
・PFS2
・TTF2
・TTNT2
・Objective response rate (ORR)
・Disease control rate (DCR)
・Clinical benefit rate (CBR)
・Duration of response (DOR)
・Patient background (height, weight, age, sex, Eastern Cooperative Oncology Group performance status (ECOG-PS) and Karnofsky Performance Status (Karnofsky-PS), etc.)
・Adverse events
- Grade 3 or higher adverse events
- Grade 1 or higher interstitial lung disease (ILD)
- Adverse events leading to discontinuation of T-DXd
・Death related to T-DXd treatment
・Patient Reported Outcome (PRO)
-Health-related quality of life (QOL)
-MD Anderson Symptom Inventory (MDASI) for brain tumor (MDASI-BT) -specific items


<Effectiveness endpoints for brain metastases>
・Intra cranial-ORR (IC-ORR)
・IC-CBR (Intra-cranial-CBR)
・IC-PFS (Intra-cranial-PFS)


<Endpoints in subgroups>
・The concordance rate between human epidermal growth factor receptor 2 (HER2) scoring under clinical settings and Pathological independent central review (Path-ICR)
・Effectiveness evaluation based on each result of HER2 scoring under clinical settings and Path-ICR
・Evaluation of effectiveness and safety, etc. in other subgroups

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

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1. Patients aged 18 years or older at the time of informed consent
2. Patients with unresectable and/or metastatic breast cancer with HER2-low expression who previously treated with chemotherapy
3. Patients scheduled for T-DXd administration
4. Patients for whom written consent was obtained

Key exclusion criteria

1. Patients who are hypersensitive to T-DXd components
2. Patients with active multiple cancers (Carcinoma in situ considered curable by local treatment (carcinoma in situ) or intramucosal carcinoma equivalent lesions should not be included in active multiple cancers)
3. Patients judged by investigators to be ineligible for this study

Target sample size

600


Research contact person

Name of lead principal investigator

1st name Shigehira
Middle name
Last name Saji

Organization

Fukushima Medical University Hospital

Division name

Department of Medical Oncology

Zip code

960-1295

Address

1 Hikariga-oka, Fukushima, 960-1295, Japan

TEL

024-547-1511

Email

ss-saji@wa2.so-net.ne.jp


Public contact

Name of contact person

1st name Shigehira
Middle name
Last name Saji

Organization

Fukushima Medical University Hospital

Division name

Department of Medical Oncology

Zip code

960-1295

Address

1 Hikariga-oka, Fukushima, 960-1295, Japan

TEL

024-547-1511

Homepage URL


Email

ss-saji@wa2.so-net.ne.jp


Sponsor or person

Institute

Fukushima Medical University

Institute

Department

Personal name



Funding Source

Organization

DAIICHI SANKYO CO., LTD.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Fukushima Medical University, Research Ethics Committee

Address

1 Hikariga-oka, Fukushima, 960-1295, Japan

Tel

024-547-1825

Email

fmurec@fmu.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

2023 Year 06 Month 16 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

Open public recruiting

Date of protocol fixation

2023 Year 04 Month 03 Day

Date of IRB

2023 Year 05 Month 17 Day

Anticipated trial start date

2023 Year 06 Month 16 Day

Last follow-up date

2026 Year 07 Month 31 Day

Date of closure to data entry

2026 Year 07 Month 31 Day

Date trial data considered complete

2026 Year 07 Month 31 Day

Date analysis concluded

2027 Year 01 Month 31 Day


Other

Other related information

The treatment results of T-DXd in breast cancer patients with HER2-low expression were only around 400 cases in DESTINY-Breast04 (DB-04)/DS8201-A-J101 study, etc. The diverse and large Real World Evidence (RWE) for this drug, which has no analogues for the treatment of this patient population, is evidence of great medical value.
Effective pharmacotherapy for TNBC is the most significant Unmet Medical Needs (UMN) in breast cancer, and this study focusing on breast cancer with HR negative/HER2-low expression among TNBC may provide complementary evidence to DB-04. In addition, the effective pharmacotherapy for breast cancer patients with brain metastasis is UMN in which the medical necessity is even higher, and the data-generation will contribute to the public benefit.
Dissemination of diagnostic criteria for HER2-low expression and its concepts will make it possible to provide breast cancer patients with new treatment opportunities. And, it is expected that it can contribute to the penetration of proper diagnosis of HER2-low expression, and that it contributes to the accessibility expansion to the therapeutic drug of the patient.
Based on the significance of the above study, we planned this study.


Management information

Registered date

2023 Year 06 Month 05 Day

Last modified on

2023 Year 10 Month 02 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000058453


Research Plan
Registered date File name

Research case data specifications
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Research case data
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