CClinicalTrials.gg
RecruitingNCT06757621Updated Jan 3, 2025

Hypofractionated Postoperative Regional Nodal Irradiation for Patients With Intermediate-risk Breast Cancer

A Phase 3 interventional study of Regional Nodal Irradiation in Breast Carcinoma, sponsored by Cancer Institute and Hospital, Chinese Academy of Medical Sciences. Recruiting at 1 site in China. Open to female participants aged 45 Years and older. Per ClinicalTrials.gov, last updated 2025-01-03.

Sponsored by Cancer Institute and Hospital, Chinese Academy of Medical Sciences · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Started Oct 2024; still recruiting 1 year 11 months later.
Phase
Phase 3
Study type
Interventional
Enrollment
3,142
Allocation
Randomized
Ages
45 Years and older
Sex
Female
01

Study summary

The role of postoperative regional nodal irradiation (RNI) for T1-2N1 intermediate-risk breast cancer is controversial, and there is a lack of class I evidence of a survival benefit from RNI. A number of retrospective studies of breast cancer patient been undertaken to risk stratify, analyse site of recurrence and assess the role of radiotherapy. RNI is currently recommended for patients at high risk of recurrence, but prospective studies in other patients are needed to assess the role of RNI. Two randomised phase III trials have confirmed the safety and efficacy of 15-fraction hypofractionated radiotherapy, while 5-fraction super-hypofractionated radiotherapy to further shorten the course of radiotherapy is a hotspot of current research. The present study aimed to investigate whether RNI improves the outcome of intermediate-risk breast cancer patients; and to assess the efficacy and toxicity of 15-fraction hypofractionated and 5-fraction super-hypofractionated radiotherapy.

02

Conditions studied

  • Breast Carcinoma

Browse trials for

03

In context

Breast Neoplasms

12,544 studies on the registry are indexed under Breast Neoplasms; 2,892 are open to participants now.

This study's planned enrollment of 3,142 is above the median of 72 across 9,303 interventional studies indexed under Breast Neoplasms.

Browse Breast Neoplasms studies →

Lead sponsor

Cancer Institute and Hospital, Chinese Academy of Medical Sciences is the lead sponsor of 373 studies on the registry; 270 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
45 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  1. ≥45 years old
  2. Receiving breast-conserving surgery or total mastectomy and axillary lymph node dissection or sentinel lymph node biopsy
  3. Negative surgical margins
  4. Tumor staging: A. patients without neoadjuvant chemotherapy: pT1-2N1M0, axillary lymph node dissection with 1-3 metastatic lymph nodes, at least 1 lymph node with macroscopic metastasis, and a score of 0-2 according to the following risk factors: ≤40 years of age (1 point), tumour located in the inner quadrant (1 point), 2-3 lymph nodes positive in the axilla (1 point), presence of choroidal tumour thrombus (1 point), and restaging according to the 8th edition of the staging criteria (IB-IIA 1 point, and IIB-IIIA 2 points) B. patients without neoadjuvant chemotherapy: pT1-2N1M0, sentinel lymph node biopsy with 1-2 metastatic lymph nodes, at least 1 lymph node with macroscopic metastasis, and a score of 0-2 according to the following risk factors: ≤40 years of age (1 point), tumour located in the inner quadrant (1 point), 2-3 lymph nodes positive in the axilla (1 point), presence of choroidal tumour thrombus (1 point), and restaging according to the 8th edition of the staging criteria (IB-IIA 1 point, and IIB-IIIA 2 points) C. patients with neoadjuvant chemotherapy: cT1-2N1-2M0→ypT0-2N0M0, requiring positive clinical lymph nodes with pathological confirmation, receiving ≥6 cycles of neoadjuvant chemotherapy, and ≥3 sentinel lymph nodes detected for those with simple sentinel lymph node biopsy
  5. Signed informed consent

Exclusion criteria

Exclusion Criteria:

  1. Distant metastases
  2. Metastasis to ipsilateral internal breast, supraclavicular or subclavicular lymph nodes
  3. Previous radiotherapy to the chest
  4. Bilateral breast cancer
  5. Pregnancy, breastfeeding
  6. Previous or concurrent other malignancy with tumor-free survival \<5 years (but excluding skin cancer with non-malignant melanoma, papillary/follicular thyroid cancer, cervical carcinoma in situ)
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
3,142 participants (estimated)

Study arms

  • Experimental
    Hypofractionated Postoperative Regional Nodal Irradiation

    Radiation: Regional Nodal Irradiation

  • No intervention
    Without Hypofractionated Postoperative Regional Nodal Irradiation

Interventions

  • RadiationRegional Nodal Irradiation

    Patients will receive chest wall / breast radiation with or without regional nodal irradiation

06

What researchers measure

Primary outcomes

  1. Disease-Free Survival Rate

    Time frame: through study completion, an average of 10 year

Secondary outcomes

  1. Overall Survival Rate

    Survival

    Time frame: through study completion, an average of 10 year

  2. Locoregional Recurrence Rate

    Survival

    Time frame: through study completion, an average of 10 year

  3. Distant Metastasis Rate

    Survival

    Time frame: through study completion, an average of 10 year

  4. Incidence of acute and late adverse reactions

    CommonTerminology Criteria for Adverse Events (CTCAE) verson 5.0 and Toxicity Criteria of Radiation Therapy Oncology Group (RTOG) are uesd for assessment. Higher toxicity ratings indicate more severe reactions.

    Time frame: through study completion, an average of 10 year

  5. Quality of life Questionnaire (EORTC QLQ-C30)

    European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30) .For the Functioning Scale and the Overall Quality of Life Scale, higher scores indicate better functioning or quality of life

    Time frame: through study completion, an average of 2 year

  6. European Organization for Research and Treatment of Cancer Breast Cancer-Specific Quality-of-Life Questionnaire (QLQ-BR23)

    for the Symptom Scale/Individual Measures, higher scores indicate more severe symptoms or problems.

    Time frame: through study completion, an average of 2 year

07

Study locations

1 of 1 sites recruiting
  • National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital
    Beijing, Beijing 12345, China
    Recruiting
08

References and documents

Individual participant data

Plan to share: No — IPD often includes sensitive personal information about patients. Sharing such data could breach patient confidentiality agreements.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 3, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06757621
Lead sponsor
Cancer Institute and Hospital, Chinese Academy of Medical Sciences
Responsible party
Shulian Wang (Professor, Cancer Institute and Hospital, Chinese Academy of Medical Sciences) — Principal investigator
First posted
Jan 3, 2025
Start date
Oct 10, 2024
Primary completion
Nov 1, 2029 (estimated)
Completion
Nov 1, 2032 (estimated)
Last update
Jan 3, 2025

Study contacts

Danqiong Wang
Contact
wdq1217ella@163.com
086-13535684351

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion