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Survival analysis of the sequence between surgery and systemic therapy in stage I-IIIA operable breast cancer patients: A retrospective cohort study in the SEER database by propensity score matching analysis

Survival analysis of the sequence between surgery and systemic therapy in stage I-IIIA operable breast cancer patients: A retrospective cohort study in the SEER database by propensity score matching analysis

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2400081495
Enrollment
Unknown
Registered
2024-03-04
Start date
2024-03-06
Completion date
Unknown
Last updated
2024-03-11

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

Conditions

Breast Cancer

Interventions

Postoperative systemic treatment group:None
Preoperative systemic treatment group:None

Sponsors

Guangdong Provincial People's Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 90 Years

Inclusion criteria

Inclusion criteria: (1) They were diagnosed with primary breast cancer without distant metastasis(T1-3N0-2M0, I-IIIA); (2) Information of neoadjuvant therapy was known; (3) Breast cancer subtypes were known; (4) Surgery of primary site was known; (5) Age of diagnosis was no less than 18 years old; (6) Their survival time were known and greater than 0 month; (7) Patients with invasive breast cancer were diagnosed with pathological confirmation.

Exclusion criteria

Exclusion criteria: None

Design outcomes

Primary

MeasureTime frame
Overall survival;

Countries

China

Contacts

Public ContactXianzhe Chen

Department of Breast Cancer, Cancer Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University

chenxianzhe@gdph.org.cn+86 189 0089 1712

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026