Elective Internal Mammary Node Irradiation in Women With Node-positive Breast Cancer

March 16, 2021 updated by: Yonsei University

Elective Internal Mammary Node Irradiation in Women With Node-positive Breast Cancer: a Randomized, Phase 3 Trial

The aim of this study is to find out whether the inclusion of internal mammary node irradiation in regional nodal irradiation improves outcomes in women with node-positive breast cancer.

Study Overview

Detailed Description

This is a multicenter, prospective, randomized phase 3 trial. Patients with node-positive breast cancer without distant metastases were included. All patients underwent breast conservation surgery or mastectomy with axillary lymph node dissection before irradiation. Patients underwent regional nodal irradiation along with breast or chest wall irradiation and randomly allocated to either IMNI or no IMNI.

Study Type

Interventional

Enrollment (Actual)

747

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

1. Women with histologically confirmed node-positive breast cancer who had undergone modified radical mastectomy or breast-conserving surgery and axillary dissection with ≥8 nodes removed.

Exclusion Criteria:

  1. Neoadjuvant chemotherapy
  2. Bilateral breast cancer
  3. Distant metastasis
  4. History of other malignancy
  5. Involvement of supraclavicular nodes or internal mammary nodes at diagnosis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Internal mammary node irradiation
Regional nodal irradiation including internal mammary node irradiation along with breast or chest wall irradiation after breast-cancer surgery
Active Comparator: No internal mammary node irradiation
Regional nodal irradiation not including internal mammary node irradiation along with breast or chest wall irradiation after breast-cancer surgery

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Disease-free survival
Time Frame: 7 years
7 years

Secondary Outcome Measures

Outcome Measure
Time Frame
Rates of overall survival
Time Frame: 7 years
7 years
breast cancer-specific survival
Time Frame: 7 years
7 years
Number of patients with treatment-related toxicities as assessed by RTOG/EORTC Toxicity criteria and NCI CTCAE v3
Time Frame: 7 years
7 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Yong Bae Kim, MD, PhD, Severance Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 5, 2008

Primary Completion (Anticipated)

February 1, 2023

Study Completion (Anticipated)

February 1, 2023

Study Registration Dates

First Submitted

March 9, 2021

First Submitted That Met QC Criteria

March 16, 2021

First Posted (Actual)

March 17, 2021

Study Record Updates

Last Update Posted (Actual)

March 17, 2021

Last Update Submitted That Met QC Criteria

March 16, 2021

Last Verified

March 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • 4-2008-0263

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

Analytic codes will be shared upon reasonable request to corresponding author.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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