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Cohort Study to Evaluate the Efficacy and Safety of Postoperative Adjuvant Therapy in HER2 Positive Elderly Breast Cancer Patients

Cohort Study to Evaluate the Efficacy and Safety of Postoperative Adjuvant Therapy in HER2 Positive Elderly Breast Cancer Patients - Cohort Study accompanying with N-SAS BC07/RESPECT

Status
Active, not recruiting
Phases
Phase 3
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000028476
Enrollment
300
Registered
2017-08-01
Start date
2010-01-22
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HER2 positive primary breast cancer in elderly

Interventions

None listed

Sponsors

RESPECT executive committee
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Histologically diagnosed as invasive breast cancer and received curative operation for primary breast cancer. 2. Stage: 1 (tumor size [pT] > 0.5 cm), 2A, 2B or 3A/ M0 3. Female between 69 and 81 years old 4. Primary region is HER 2 positive: either 3+ overexpression by IHC or positive by FISH 5. Baseline left ventricular ejection fraction (LVEF) is >=55% measured by echocardiography or MUGA scan within 4 weeks before registration. 6. PS: 0-1 (ECOG) 7. Sufficient organ function meeting following criteria within 4 weeks before registration: (1) Leukocyte >=2500 mm3 (2) Neutrophil >=1500 mm3 (3) Platelet >=100 000 mm3 (4) Serum total bilirubin >=2.0 x upper limit of normal (ULN) (5) ALT (GPT) or AST (GOT) >=2.5 x ULN (6) Serum creatinine >=2.0 x ULN (7) ALP >=2.5 x ULN 8. No previous endocrine therapy or chemotherapy for breast cancer 9. Signed written informed consent 10.Patient who refused to participate in the N-SAS BC 07 randomized control study

Exclusion criteria

Exclusion criteria: 1. Active multiple primary cancer (synchronous multiple primary cancer and invasive cancer of other organs) 2. Postoperative histological axillary lymph node metastasis >=4 3. Axillary lymph node is not histologically evaluated 4. Histologically confirmed positive margin in breast conservation surgery (evaluation of margin status is based on policy of site) 5. History of drug-related allergy which could hinder planned treatment 6. Any history or complication of following cardiac disorders - History of congestive heart failure, cardiac infarction - Complication requires treatment such as: ischemic cardiac disorder, arrhythmia, valvular heart disease 7. Poorly controlled hypertension (ex. Systolic arterial pressure >=180 mmHg or diastolic blood pressure >=100 mmHg) 8. Poorly controlled diabetes 9. Continuous visit to a medial institution is considered difficult due to deterioration of activity of daily living (ADL) 10. Difficult to participate in the trial because of psychiatric disorder or psychiatric symptoms 11. Ineligible to the trial based on decision of an investigator

Design outcomes

Primary

MeasureTime frame
Disease-Free Survival (DFS)

Secondary

MeasureTime frame
Overall Survival (OS), Relapse-free Survival (RFS), Safety, HRQOL, CGA

Countries

Japan

Contacts

Public ContactAkira Yamao

Public Health Research Foundation Comprehensive Support Project for Clinical Research

support@csp.or.jp03-5287-2633

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026