TIL Relation to pCR After Neoadjuvant Therapy in Breast Cancer Patients

NCT ID: NCT05206396

Last Updated: 2023-07-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

270 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-07-24

Study Completion Date

2024-09-30

Brief Summary

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Neoadjuvant systemic treatment for breast cancer (used in locally advanced and operable breast cancer) includes anthracycline based chemotherapy (Doxorubicin/Cyclophosphamide) followed by taxanes (weekly Paclitaxel or Docetaxel) with antiHer-2 Trastuzumab or dual antiHer-2 Trastuzumab plus Pertuzumab. Other regimens include Docetaxel plus Carboplatin plus Trastuzumab alone or combined with pertuzumab for Her-2 positive patients.

The tumor microenvironment, which includes extracellular matrix and stromal cells, is a key factor in tumorigenicity and the prediction of the efficacy of immunotherapy, conventional chemotherapy, and other anticancer therapies. Tumor-infiltrating lymphocytes (TILs), one of the most important components of the tumor microenvironment, were reported to predict the response to NAC both for tumors and axillary lymph nodes in breast cancer patients. This study is conducted to examine the relationship between tumor-infiltrating lymphocytes (categorized into three levels) and the pathologic complete response to neoadjuvant systemic therapy in breast cancer patients, and to examine the relationship between TILs and 1-year invasive disease-free survival (IDFS).

Detailed Description

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Neoadjuvant systemic treatment for breast cancer is used in locally advanced and operable breast cancer. Standard neoadjuvant systemic therapy regimens for breast cancer patients include anthracycline based chemotherapy (Doxorubicin/Cyclophosphamide) followed by taxanes (weekly Paclitaxel or Docetaxel) with antiHer-2 Trastuzumab or dual antiHer-2 Trastuzumab plus Pertuzumab. Other regimens include Docetaxel plus Carboplatin plus Trastuzumab alone or combined with pertuzumab for Her-2 positive patients.

The tumor microenvironment, which includes extracellular matrix and stromal cells, is a key factor in tumorigenicity and the prediction of the efficacy of immunotherapy, conventional chemotherapy, and other anticancer therapies. Tumor-infiltrating lymphocytes (TILs), one of the most important components of the tumor microenvironment, were reported to predict the response to NAC both for tumors and axillary lymph nodes in breast cancer patients. This study is conducted to examine the relationship between tumor-infiltrating lymphocytes (categorized into three levels) and the pathologic complete response to neoadjuvant systemic therapy in breast cancer patients, and to examine the relationship between TILs and 1-year invasive disease-free survival (IDFS).

Conditions

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Breast Cancer

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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TIL in breast cancer patients who completed neoadjuvant therapy

* Tumour infiltrating lymphocytes will be examined on pre-existing histopathologic samples.
* Data will be extracted from the files of the patients including:
* Demographic data, clinicopathologic data, pathologic complete response, and date of last follow up.

TIL assessment in pre-existing histopathological specimens

Intervention Type DIAGNOSTIC_TEST

TIL assessment in pre-existing histopathological specimens and their relation to complete pathological response and 1-year invasive disease-free interval

Interventions

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TIL assessment in pre-existing histopathological specimens

TIL assessment in pre-existing histopathological specimens and their relation to complete pathological response and 1-year invasive disease-free interval

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Patients aged 18 years old or more
* Histologically proven invasive breast cancer
* All patients diagnosed with breast cancer except T1N0 and Metastatic breast cancer
* Patients who completed their systemic neoadjuvant therapy

Exclusion Criteria

* Second malignancy
* Patients who started but didn't complete neoadjuvant systemic therapy
* Patients who didn't undergo surgery after neoadjuvant systemic therapy
* Pregnant patients
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Ain Shams University

OTHER

Sponsor Role lead

Responsible Party

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Iman Aly

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Iman Sharawy, MD

Role: PRINCIPAL_INVESTIGATOR

Ain Shams University

Locations

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Faculty of Medicine, Ain Shams University

Cairo, , Egypt

Site Status RECRUITING

Countries

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Egypt

Central Contacts

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Iman A Sharawy, MD

Role: CONTACT

01068280224

Ahmad Gab Allah, MD

Role: CONTACT

01066882266

Facility Contacts

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Iman Sharawy, MD

Role: primary

Other Identifiers

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R148/2021

Identifier Type: -

Identifier Source: org_study_id

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