NCT07275203

Brief Summary

the study will discuss the concordance of the biology of primary breast carcinoma and the biology of recurrence. The study will be conducted at Department of Clinical Oncology, Sohag University Hospital and Sohag Cancer center, Sohag, Egypt. including Patients diagnosed and treated between 2015 and 2025 and Data will be collected from medical records, pathology reports, and radiology reports.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
200

participants targeted

Target at P75+ for all trials

Timeline
5mo left

Started Mar 2026

Shorter than P25 for all trials

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress32%
Mar 2026Oct 2026

First Submitted

Initial submission to the registry

November 27, 2025

Completed
13 days until next milestone

First Posted

Study publicly available on registry

December 10, 2025

Completed
3 months until next milestone

Study Start

First participant enrolled

March 1, 2026

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2026

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2026

Last Updated

January 29, 2026

Status Verified

November 1, 2025

Enrollment Period

4 months

First QC Date

November 27, 2025

Last Update Submit

January 27, 2026

Conditions

Breast Carcinoma

Outcome Measures

Primary Outcomes (1)

  • Rate of receptor discordance between primary and recurrent breast cancer.

    2015-2025

Interventions

No interventionOTHER

No intervention

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study will be conducted at Department of Clinical Oncology, Sohag University Hospital and Sohag Cancer center, Sohag, Egypt.

You may qualify if:

  • Age more than18 years old at time of diagnosis of breast cancer.
  • Patients who had recurrent breast cancer following adjuvant treatment.
  • Biopsy was taken from the site of recurrence and biology was done.

You may not qualify if:

  • Patients with distant metastasis at time of presentation.
  • Patients diagnosed with double malignancy.
  • Patients with incomplete data records.
  • Recurrent breast cancer and biopsy difficult to be taken .

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Breast Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principle Investigator

Study Record Dates

First Submitted

November 27, 2025

First Posted

December 10, 2025

Study Start

March 1, 2026

Primary Completion (Estimated)

July 1, 2026

Study Completion (Estimated)

October 1, 2026

Last Updated

January 29, 2026

Record last verified: 2025-11