Unique ID issued by UMIN | UMIN000051259 |
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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 |
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
HALLOW study
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
HALLOW study
Japan |
Unresectable and/or metastatic breast cancer patients with HER2-low expression
Hematology and clinical oncology | Breast surgery |
Malignancy
NO
・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.
Safety,Efficacy
<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
Observational
18 | years-old | <= |
Not applicable |
Male and Female
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
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
600
1st name | Shigehira |
Middle name | |
Last name | Saji |
Fukushima Medical University Hospital
Department of Medical Oncology
960-1295
1 Hikariga-oka, Fukushima, 960-1295, Japan
024-547-1511
ss-saji@wa2.so-net.ne.jp
1st name | Shigehira |
Middle name | |
Last name | Saji |
Fukushima Medical University Hospital
Department of Medical Oncology
960-1295
1 Hikariga-oka, Fukushima, 960-1295, Japan
024-547-1511
ss-saji@wa2.so-net.ne.jp
Fukushima Medical University
DAIICHI SANKYO CO., LTD.
Profit organization
Japan
Fukushima Medical University, Research Ethics Committee
1 Hikariga-oka, Fukushima, 960-1295, Japan
024-547-1825
fmurec@fmu.ac.jp
NO
2023 | Year | 06 | Month | 16 | Day |
Unpublished
Open public recruiting
2023 | Year | 04 | Month | 03 | Day |
2023 | Year | 05 | Month | 17 | Day |
2023 | Year | 06 | Month | 16 | Day |
2026 | Year | 07 | Month | 31 | Day |
2026 | Year | 07 | Month | 31 | Day |
2026 | Year | 07 | Month | 31 | Day |
2027 | Year | 01 | Month | 31 | Day |
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.
2023 | Year | 06 | Month | 05 | Day |
2023 | Year | 10 | Month | 02 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000058453
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