Unique ID issued by UMIN | UMIN000050326 |
---|---|
Receipt number | R000057285 |
Scientific Title | Cohort study of treatment strategy for low risk HER2 positive breast cancer based on response-guided therapy and shared decision making |
Date of disclosure of the study information | 2023/03/01 |
Last modified on | 2023/04/23 16:37:55 |
Cohort study of treatment strategy for low risk HER2 positive breast cancer based on response-guided therapy and shared decision making
HERREST study
Cohort study of treatment strategy for low risk HER2 positive breast cancer based on response-guided therapy and shared decision making
HERREST study
Japan |
HER2 positive breast cancer
Breast surgery |
Malignancy
NO
The objective is to evaluate whether choosing treatment through Response-guided therapy for low-risk HER2 positive breast cancer patients with tumor size of 1-3 cm leads to a reduction in side effects and improvement in prognosis. Additionally, it aims to evaluate whether the choice of treatment based on Shared decision making improves the satisfaction of medical staff and patients.
Safety,Efficacy
Exploratory
Pragmatic
Not applicable
Disease-free survival for all prospective study subjects
Pathological evaluation by each subgroup
OS for all prospective study subjects
DFS,OS for each subgroup
Final percentage of patients who did not receive EC
Adverse events overall and by each subgroup
Treatment response of each regimen
Clinical response especially for taxane and anti-HER2 therapy
Actual results of SDM and the reasons for their decisions
Patient and medical staff with the process of response-guided therapy
Qualitative evaluation of SDM in response-guided therapy
Observational
20 | years-old | <= |
80 | years-old | >= |
Female
1) Histologically diagnosed invasive cancer that has not been treated in any way
2) 1cm =<cT =< 3cm, cN0
3) Women between 20 and 80 years of age
4) HER2 positive breast cancer IHC 3 plus or FISH amplification
5) The latest laboratory values within 4 weeks prior to enrollment meet all of the following
1 Neutrophil count >=1500/mm3 or white blood cell count >= 3000/mm3
2 Hemoglobin >= 8.0 g/dl
3 Platelet count >=100000/mm3
4 Total bilirubin =< less than twice the institutional standard
5 AST or ALT =< 2.5 times or less than the institutional standard
6 Creatinine =< 2.0 mg/dL
6) Left ventricular ejection fraction >50% on the most recent echocardiography
7) PS, 0-2
1) Concurrent bilateral breast cancer, multiple ipsilateral breast cancers of different subtypes
2) History of breast cancer, active overlapping cancers, history of allergies that would result in protocol interruption
3) History of serious cardiac disease (heart failure, myocardial infarction, ischemic disease, vascular disease requiring treatment)
4) Difficulty in continuing hospital visits due to physical inactivity
5) Complicated mental illness or psychiatric symptoms that make participation in the study difficult
6) In case the attending physician determines that the subject is not suitable for participation in the study
100
1st name | Eiichi |
Middle name | |
Last name | Shiba |
Osaka Breast Clinic
Department of Breast and Endocrine Surgery
553-0007
1-13-8 Ohiraki, Fukushima, Osaka City, Osaka
06-6465-4108
eshiba@goo.jp
1st name | Noriko |
Middle name | |
Last name | Fujita |
Osaka Breast Clinic
Department of Breast and Endocrine Surgery
553-0007
1-13-8 Ohiraki, Fukushima, Osaka City, Osaka
06-6465-4108
noriko_f_0505@yahoo.co.jp
Eiichi Shiba,the Department of Breast and Endocrine Surgery, Osaka Breast Clinic
Osaka Breast Clinic
Other
Osaka Breast Clinic
1-13-8 Ohiraki, Fukushima, Osaka City, Osaka
06-6465-4108
noriko_f_0505@yahoo.co.jp
NO
2023 | Year | 03 | Month | 01 | Day |
Unpublished
Open public recruiting
2023 | Year | 01 | Month | 30 | Day |
2023 | Year | 01 | Month | 30 | Day |
2023 | Year | 02 | Month | 13 | Day |
2033 | Year | 02 | Month | 28 | Day |
Research Methodology Overview
Prospective study
Enrollment period: 5 years from February 13, 2023.
Follow-up period: 5 years after the last case enrollment.
Study period: 12 years from February 13, 2023.
Retrospective study
Enrollment period: from September 1, 2006 to the last enrollment.
Follow-up period: 5 years after the last enrollment.
(1) Survival curves using the Kaplan-Meier method and recurrence-free survival and overall survival rates will be calculated for all patients in the prospective study and for DFS and OS in each subgroup. The results will be compared among retrospective studies, previously reported results, and each subgroup.
(2) The percentage of satisfaction with response-guided therapy will be evaluated at four points (preoperative, 1 year postoperative, 3 years postoperative, and 5 years postoperative) to investigate the change over time in the percentage of satisfaction with each question on the part of both providers and patients.
(3) The quality of SDM will be evaluated using the SDM-Q-9/SDM-Q-Doc before and 1 year after surgery.
2023 | Year | 02 | Month | 13 | Day |
2023 | Year | 04 | Month | 23 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000057285