Unique ID issued by UMIN | UMIN000019556 |
---|---|
Receipt number | R000022616 |
Scientific Title | Hormonal therapy resistant estorgen receptor positive metastatic breast cancer cohort study |
Date of disclosure of the study information | 2015/11/01 |
Last modified on | 2020/05/11 12:20:19 |
Hormonal therapy resistant estorgen receptor positive metastatic breast cancer cohort study
HORSE-BC
Hormonal therapy resistant estorgen receptor positive metastatic breast cancer cohort study
HORSE-BC
Japan |
Breast cancer
Hematology and clinical oncology | Breast surgery |
Malignancy
NO
(1)To demonstrate the efficacy and safety of secondary endocrine therapy in general as well as that of different drugs in estrogen receptor-positive, HER2-negative postmenopausal metastatic breast cancer in which the primary endocrine therapy did not have a favorable clinical effect (i.e., low sensitivity to primary endocrine therapy).
(2)To clarify the effects of reactivity to the previous endocrine therapy (the period from the start of postoperative endocrine therapy to recurrence) and the biological characteristics of each tumor (expression intensity of ER and presence or absence of PgR expression) on the results of the secondary endocrine therapy, and to obtain information to complement Hortobagyi's therapeutic algorithm.
Efficacy
Exploratory
Explanatory
Not applicable
Clinical benefit rate
Progression free survival
overall survival
time to treatment failure
time to chemotherapy
response rate
health-related quality of life
adverse events
Observational
Not applicable |
Not applicable |
Male and Female
Cases that satisfy all of the following conditions are included in this study as subjects.
(1) A patient with estrogen receptor positive postmenopausal breast cancer who is histologically diagnosed as breast cancer.
(2) Diagnosis of breast cancer corresponds to either of the following. No distinction is made according to the presence or absence of measurable lesions.
1. Stage 4 breast cancer associated with distant metastasis that cannot be a candidate for surgery at the first visit.
2. Breast cancer associated with progression or recurrence caused by distant metastasis after initial treatment for breast cancer aiming at curing.
(3) Endocrine therapy for metastatic breast cancer is planned.
(4) Performance status of ECOG is 0 or 1.
(5) Previous endocrine therapy for breast cancer corresponds to either of the following. No distinction is made according to the type of endocrine therapeutic medicines used.
1. A case that has continuously received endocrine therapeutic medicines as a postoperative adjunct therapy and in which recurrence occurred within 5 years after the initiation of the endocrine therapy.
2. A case that received endocrine therapy as the primary treatment for metastatic breast cancer and in which progression of the disease occurred within 9 months after the initiation of the endocrine therapy.
(6) Previous chemotherapy for breast cancer corresponds to either of the following:
1. No previous chemotherapy was administered.
2. When chemotherapy was administered as a preoperative or postoperative adjunct therapy, it has been at least 6 months since the final day of administration.
(7) Previous radiotherapy for breast cancer corresponds to the following:
1. It has been at least 14 days after the final day of radiotherapy administration.
(8)Agreement about the participation in the study will be obtained from the subject him/herself using the consent form.
A case that corresponds to any of the following is excluded from participating in this study as a subject.
(1)HER2-positive breast cancer.
(2)A case not indicated for endocrine therapy.
(3)Any other case that a physician determines to be unsuitable for participation in this study.
200
1st name | |
Middle name | |
Last name | Naruto Taira |
Okayama university hospital
breast and endocrine surgery
Shikata-cho 2-5-1, Kita-ku, Okayama city
086-235-7265
ntaira@md.okayama-u.ac.jp
1st name | |
Middle name | |
Last name | Tomomi Fujisawa |
Gunma Prefectural Cancer Center
Breast oncology
617-1 Takahayashinishicho, Ota, Gunma,
0276-38-077
fujisawa@gunma-cc.jp
General Incorporated Association of CSPOR-BC
Research funds from the Investigator Initiated-Sponsored Research of the Externally Sponsored Research program of AstraZeneca K.K..
Outside Japan
NO
2015 | Year | 11 | Month | 01 | Day |
http://cspor-bc.or.jp/members/horse-bc/index.html
Unpublished
Completed
2015 | Year | 08 | Month | 12 | Day |
2015 | Year | 11 | Month | 26 | Day |
2016 | Year | 02 | Month | 22 | Day |
2019 | Year | 02 | Month | 22 | Day |
This study aims to clarify the efficacy and safety of secondary endocrine therapy using endocrine therapeutic medicines in estrogen receptor-positive, HER2-negative postmenopausal metastatic breast cancer for which the primary endocrine therapy had no favorable clinical effect through prospective observation using outcome indices including the clinical benefit rate, progression free survival, overall survival, time to treatment failure, time to chemotherapy, response rate, health-related quality of life, and adverse events.
Secondary aims include to categorize the wide variety of endocrine therapeutic medicines that are currently usable in Japan based on their action mechanisms and to evaluate their efficacy and safety.
2015 | Year | 10 | Month | 29 | Day |
2020 | Year | 05 | Month | 11 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000022616