Breast cancer
Conditions
Interventions
Breast cancer secondary primary tumor group:None
Breast cancer without secondary primary tumor group:None
Sponsors
National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
Eligibility
Sex/Gender
Female
Age
26 Years to 78 Years
Inclusion criteria
Inclusion criteria: 1. Infiltrative breast cancer was confirmed by puncture pathology or biopsy pathology in SEER database; 2. Breast cancer was the patient's first diagnosed malignant tumor; 3. Subsequent primary tumors are found at least 2 months after diagnosis of breast cancer.
Exclusion criteria
Exclusion criteria: 1. Follow-up information is incomplete; 2. Carcinoma in situ, inflammatory breast cancer, phyllostoma and other breast tumors except invasive breast cancer; 3. Patients with severe cardiovascular diseases, respiratory diseases, malnutrition, autoimmune diseases, diabetes, liver disease, kidney disease, history of deep vein thrombosis, coagulation mechanism disorders, etc.; 4. Patients or relatives refuse to participate in clinical trials.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary breast cancer hormone receptor (HR) status;Relationship between molecular subtypes and the occurrence and development of second primary tumors; | — |
Secondary
| Measure | Time frame |
|---|---|
| Relationship between time from primary breast cancer diagnosis to second primary tumor (TTSPC) and clinicopathological properties of second primary tumor (SPC); | — |
Countries
China
Contacts
Public ContactKong Xiangyi
China National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
Outcome results
None listed