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A Phase Ⅲ Randomized Clinical Trial of Postmastectomy Hypofractionation Radiotherapy in High-risk Breast Cancer

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT00793962
Recruitment Status : Completed
First Posted : November 19, 2008
Last Update Posted : October 11, 2018
Sponsor:
Information provided by (Responsible Party):
Shu lian Wang, Chinese Academy of Medical Sciences

Study Description
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Brief Summary:
The purpose of this study is to compare the efficacy and toxicities of hypofractionation radiotherapy with conventional fractionation radiotherapy in breast cancer patients treated with mastectomy.It is hypothesized that the efficacy and toxicities are similar between the two groups.

Condition or disease Intervention/treatment Phase
Breast Cancer Radiation: hypofractionation radiotherapy Radiation: conventional fractionation radiotherapy Phase 3

Detailed Description:

Eligible breast cancer patients with mastectomy and axillary dissection are randomized into 2 groups:conventional fractionation radiotherapy of 50 Gy in 25 fractions within 5 weeks to ipsilateral chest wall and supraclavicular nodal region,and hypofractionation radiotherapy of 43.5Gy in 15 fractions within 3 weeks to the same region.

During and after radiotherapy, the patients are followed and the efficacy and toxicities of radiotherapy are evaluated.

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 810 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase Ⅲ Randomized Clinical Trial of Postmastectomy Hypofractionation Radiotherapy in High-risk Breast Cancer
Study Start Date : June 2008
Actual Primary Completion Date : May 2016
Actual Study Completion Date : September 2018

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Breast Cancer

Arms and Interventions
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Arm Intervention/treatment
Experimental: hypofractionation radiotherapy
breast cancer women with mastectomy high-risk: T3-4 and/or 4 or more axillary nodes involvement postmastectomy hypofractionation radiotherapy of 43.5Gy/15f/3w to the chest wall and supraclavicular nodal region
 Radiation: hypofractionation radiotherapy
radiotherapy of 43.5Gy/15f/3w to the chest wall and supraclavicular nodal region
Other Name: radiotherapy
Active Comparator: conventional fractionation radiotherapy
breast cancer women with mastectomy high-risk with T3-4 and/or 4 or more axillary nodes postmastectomy conventional fractionation radiotherapy of 50Gy/25f/5w to the chest wall and supraclavicular nodal region
 Radiation: conventional fractionation radiotherapy
50Gy/25/f/5w
Other Name: radiotherapy


Outcome Measures
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Primary Outcome Measures :
  1. locoregional control rate [ Time Frame: 5 years ]
    ipsilateral chest wall, axilla, supraclavicular and internal mammary nodal relapse


Secondary Outcome Measures :
  1. overall survival [ Time Frame: 5 years ]
    any death


Eligibility Criteria
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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Ipsilateral histologically confirmed invasive breast cancer
  • Undergone total mastectomy and axillary dissection
  • T3-4,or >=4 positive axillary lymph nodes
  • Fit for chemotherapy(if indicated),endocrine therapy(if indicated)and postoperative irradiation
  • Written,informed consent
  • cT3-4,or cN2, or pathological positive axillary lymph nodes during mastectomy for patients who had received neoadjuvant chemotherapy or hormone therapy
  • no supraclavicular or internal mammary nodes metastases
  • no distant metastases
  • enrollment date no more than 8 months after surgery or no more than 2 months after chemotherapy for patients who didn't receive neoadjuvant systemic therapy.
  • enrollment date no more than 2 months after surgery for patients who had received neoadjuvant systemic therapy and didn't need adjuvant chemotherapy.

Exclusion Criteria:

  • Patients who undergone previous irradiation to the ipsilateral chest wall and supraclavicular region
  • Previous or concurrent malignant other than non-melanomatous skin cancer
  • Unable or unwilling to give informed consent
  • bilateral breast cancer
  • immediate or delayed ipsilateral breast cancer reconstruction
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00793962


Locations
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China
Cancer Hospital, Chinese Academy of Medical Sciences
Beijing, China, 100021
Sponsors and Collaborators
Chinese Academy of Medical Sciences
Investigators
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Principal Investigator: shu-lian wang, M.D. Cancer Institute and Hospital, Chinese Academy of Medical Sciences
Study Chair: Ye-xiong Li, M.D. Cancer Institute and Hospital, Chinese Academy of Medical Sciences
More Information
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Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

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Responsible Party: Shu lian Wang, M.D., Chinese Academy of Medical Sciences
ClinicalTrials.gov Identifier: NCT00793962    
Other Study ID Numbers: LC2008A06
First Posted: November 19, 2008    Key Record Dates
Last Update Posted: October 11, 2018
Last Verified: October 2018
Keywords provided by Shu lian Wang, Chinese Academy of Medical Sciences:
breast cancer
mastectomy
radiotherapy
fractionation
Additional relevant MeSH terms:
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Breast Neoplasms
Neoplasms by Site
Neoplasms
Breast Diseases
Skin Diseases