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Breast NeoplasmsPhase 3NCT04803266

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

A Phase 3 study testing Internal mammary node irradiation and No internal mammary node irradiation in people with Breast Neoplasms, run by Yonsei University at 1 site in South Korea.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Breast Neoplasms
What is being tested?
Internal mammary node irradiation and No internal mammary node irradiation
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
747 participants
Where
1 siteSouth Korea
Study dates
5 Nov 2008to Feb 2023
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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.

Who cannot join

  • Neoadjuvant chemotherapy
  • Bilateral breast cancer
  • Distant metastasis
  • History of other malignancy
  • Involvement of supraclavicular nodes or internal mammary nodes at diagnosis

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Yonsei Severance Hospital

    Seoul

Other trials in South Korea

About this study

Official title: 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.

Read the 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.

Being tested
Internal mammary node irradiation, No internal mammary node irradiation
Medical subject headings
Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Internal mammary node irradiationRadiation

    Regional nodal irradiation including internal mammary node irradiation along with breast or chest wall irradiation after breast-cancer surgery

  • No internal mammary node irradiationRadiation

    Regional nodal irradiation not including internal mammary node irradiation along with breast or chest wall irradiation after breast-cancer surgery

Study groups in NCT04803266
Study groupRoleWhat they receive
Internal mammary node irradiationExperimentalNot described
Receives: Radiation: Internal mammary node irradiation
No internal mammary node irradiationActive comparatorNot described
Receives: Radiation: No internal mammary node irradiation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Disease-free survival

    Measured: 7 years

Secondary outcomes (3)
  1. Rates of overall survival

    Measured: 7 years

  2. breast cancer-specific survival

    Measured: 7 years

  3. Number of patients with treatment-related toxicities as assessed by RTOG/EORTC Toxicity criteria and NCI CTCAE v3

    Measured: 7 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Mar 2021
  2. Study start5 Nov 2008
  3. Primary completionFeb 2023 (estimated)
  4. Study completionFeb 2023 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
747 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04803266
Sponsor's protocol ID
4-2008-0263
Status last verified
Mar 2021
First submitted
9 Mar 2021
Last updated
17 Mar 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided: Analytic codes will be shared upon reasonable request to corresponding author.

Publications

  • Kim YB, Byun HK, Kim DY, Ahn SJ, Lee HS, Park W, Kim SS, Kim JH, Lee KC, Lee IJ, Kim WT, Shin HS, Kim K, Shin KH, Nam CM, Suh CO. Effect of Elective Internal Mammary Node Irradiation on Disease-Free Survival in Women With Node-Positive Breast Cancer: A Randomized Phase 3 Clinical Trial. JAMA Oncol. 2022 Jan 1;8(1):96-105. doi: 10.1001/jamaoncol.2021.6036.

    PubMed 34695841

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Internal mammary node irradiation and No internal mammary node irradiation in people with Breast Neoplasms, run by Yonsei University at 1 site in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 17 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Disease-free survival (time frame: 7 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04803266, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Mar 2021.

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