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Comparative Expression of ER,PR and HER2/Neu in Initial and Recurrent Breast Cancer.

Comparative Expression of ER,PR and HER2/Neu in Initial and Recurrent Breast Cancer.

Status
Enrolling by invitation
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07056205
Enrollment
100
Registered
2025-07-09
Start date
2021-01-01
Completion date
2025-12-31
Last updated
2025-07-09

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

Conditions

Breast Cancer

Keywords

ER,PR,HER2/neu,breast cancer

Brief summary

Expression of ER, PR and HER2/neu in initial and recurrent breast cancer and correlate the results to different clinical and pathological parameters as patient age,sex, tumor location, status of nodal involvement and lymphovascular invasion

Detailed description

Clinical data, pathological data, expression status of ER, PR and HER2/neu of both initial tumor and recurrent tumor and received treatment for BC patients diagnosed between January 2021 and December 2024 will be extracted from archive of multidisciplinary team (MDT) for management of BC at Sohag Oncology Center. In addition; hematoxylin and eosin stained slides and immune-stained slides for ER, PR and HER2/neu for selected patient's will be retrieved from archives of Pathology unit at Sohag Oncology Center and reviewed to confirm pathological features, ER expression, PR expression and HER2 status of both initial and recurrent tumor tissues.

Interventions

None listed

Sponsors

Sohag University
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Healthy volunteers
No

Inclusion criteria

Patients with excised breast cancer then experienced recurrence at same site. Patients with evaluated ER, PR and HER2/neu for both initial and recurrent tumors.

Exclusion criteria

* Cases with insufficient clinical of pathological data. Deficient ER, PR and HER2/neu status in either initial or recurrent tumor

Design outcomes

Primary

MeasureTime frame
Comparison between initial and recurrent breast cancer in immunohistochemical expression of ER,PR and HER2/neu6 months

Secondary

MeasureTime frame
Correlate the results of immunohistochemical expression of ER,PRand HER2/neu with the patients age ,sex,nodal status and lymphovascular invasion6 months

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026