A Randomized Controlled Study on the Efficacy and Safety of Neoadjuvant Radiotherapy Combined with Systemic Therapy for Early-stage Breast Cancer

NCT ID: NCT06769919

Last Updated: 2025-01-10

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

NOT_YET_RECRUITING

Clinical Phase

PHASE2/PHASE3

Total Enrollment

340 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-12-31

Study Completion Date

2031-12-31

Brief Summary

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A total of 340 early-stage breast cancer patients with axillary lymph node biopsy-confirmed positivity were enrolled and divided into two groups. The control group received neoadjuvant systemic therapy followed by surgery and adjuvant radiotherapy. The experimental group received neoadjuvant systemic therapy and neoadjuvant radiotherapy followed by surgery. The treatment response of breast cancer, patient survival time, and treatment safety were subsequently evaluated.

Detailed Description

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This study is a randomized, controlled, open-label clinical trial, planned to enroll 340 early-stage breast cancer patients with axillary lymph node biopsy-confirmed positivity. Participants will be divided into two groups. The control group will receive neoadjuvant systemic therapy, followed by surgery and adjuvant radiotherapy. The experimental group will receive neoadjuvant systemic therapy combined with neoadjuvant radiotherapy before undergoing surgery.

After providing full informed consent and signing the informed consent form, eligible participants will enter the trial period upon screening. Within 72 hours of enrollment confirmation, participants will begin neoadjuvant therapy. Patients in the control group will receive a neoadjuvant systemic therapy regimen selected by their physician, followed by surgery and adjuvant radiotherapy. Patients in the experimental group will receive both neoadjuvant systemic therapy and neoadjuvant radiotherapy. The radiotherapy regions will include the whole breast, supraclavicular and infraclavicular areas, and internal mammary regions, with a dose of 50 Gy over 25 fractions, plus a tumor bed boost of 10-16 Gy over 4-8 fractions.

Primary Endpoint:

Residual Cancer Burden (RCB) 0/I.

Secondary Endpoints:

Event-Free Survival (EFS) Invasive Disease-Free Survival (iDFS) Overall Survival (OS) Quality of life scores ECOG performance status scores Surgical incision healing scores Adverse Events (AEs)

Inclusion Criteria:

Participants must meet all of the following criteria to be eligible for the trial:

1. Female patients aged ≥18 years and ≤65 years with newly diagnosed breast cancer;
2. Early-stage or locally advanced invasive breast cancer confirmed by histopathology according to the latest ASCO/CAP guidelines, meeting the following conditions:Axillary lymph node biopsy-positive;ECOG performance status score of 0-1;
3. Presence of at least one measurable lesion based on RECIST 1.1 criteria.

Conditions

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Breast Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

This study is a randomized, controlled, open-label clinical trial, planned to enroll 340 early-stage breast cancer patients with axillary lymph node biopsy-confirmed positivity. Participants will be divided into two groups. The control group will receive neoadjuvant systemic therapy, followed by surgery and adjuvant radiotherapy. The experimental group will receive neoadjuvant systemic therapy combined with neoadjuvant radiotherapy before undergoing surgery.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Adjuvant radiotherapy

receive neoadjuvant systemic therapy, followed by surgery and adjuvant radiotherapy

Group Type NO_INTERVENTION

No interventions assigned to this group

Neoadjuvant radiotherapy

receive neoadjuvant systemic therapy combined with neoadjuvant radiotherapy before undergoing surgery

Group Type EXPERIMENTAL

Neoadjuvant radiotherapy

Intervention Type RADIATION

The experimental group will receive neoadjuvant systemic therapy combined with neoadjuvant radiotherapy before undergoing surgery

Interventions

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Neoadjuvant radiotherapy

The experimental group will receive neoadjuvant systemic therapy combined with neoadjuvant radiotherapy before undergoing surgery

Intervention Type RADIATION

Eligibility Criteria

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Inclusion Criteria

* Female patients aged ≥18 years and ≤65 years;
* newly diagnosed breast cancer;
* Axillary lymph node biopsy-positive;
* ECOG performance status score of 0-1;

Exclusion Criteria

* metastatic breast cancer or bilateral breast cancer;
* inflammatory breast cancer;
* Pregnancy and Lactation;
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Xijing Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Xijing hospital

Xi'an, Shaanxi, China

Site Status

Countries

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China

Central Contacts

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Ju liang Zhang

Role: CONTACT

029-84775271

Mei ling Huang

Role: CONTACT

029-84775271

Facility Contacts

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Ju liang Zhang

Role: primary

029-84775271

Other Identifiers

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WZ-1

Identifier Type: -

Identifier Source: org_study_id

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