S9927 Radiation Therapy After Surgery, Chemotherapy, and/or Hormone Therapy in Stage II Breast Cancer

January 22, 2013 updated by: Southwest Oncology Group

Randomized Trial of Post-Mastectomy Radiotherapy in Stage II Breast Cancer in Women With One to Three Positive Axillary Nodes Phase III

RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. It is not yet known whether mastectomy, chemotherapy, and/or hormone therapy are more effective with or without radiation therapy in treating breast cancer.

PURPOSE: Randomized phase III trial to compare the effectiveness of mastectomy, chemotherapy, and/or hormone therapy with or without radiation therapy in treating women who have stage II breast cancer.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Detailed Description

OBJECTIVES:

  • Compare overall and disease-free survival in women with stage II breast cancer with one to three positive nodes treated with radiotherapy vs observation only after mastectomy and adjuvant chemotherapy and/or hormonal therapy.
  • Compare local regional control in patients treated with these regimens.
  • Assess the potential toxic effects of radiotherapy in this patient population.

OUTLINE: This is a randomized, multicenter study. Patients are stratified according to prior systemic hormonal therapy (chemotherapy with or without hormonal therapy vs hormonal therapy alone), prior taxane exposure (yes vs no), and duration of chemotherapy (no chemotherapy vs less than 3 months vs 3-5 months vs 6 months or more). Patients are randomized to one of two treatment arms.

  • Arm I: Patients undergo radiotherapy 5 days a week for 5 weeks.
  • Arm II: Patients are observed for disease progression. Patients are followed every 6 months for 2 years and then annually for 15 years.

PROJECTED ACCRUAL: A total of 2,500 patients (1,250 per treatment arm) will be accrued for this study within 5 years.

Study Type

Interventional

Enrollment (Actual)

98

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

  • Canada
    • Ontario
      • Hamilton, Ontario, Canada, L8V 5C2
        • Cancer Care Ontario-Hamilton Regional Cancer Centre

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

21 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

DISEASE CHARACTERISTICS:

  • Histologically confirmed stage II adenocarcinoma of the breast (T1-2, N1, M0)

    • Primary tumor no greater than 5 cm
    • At least 1 but no more than 3 positive axillary lymph nodes
    • Nodes cannot be positive solely by cytokeratin staining
    • No apocrine, adenocystic, or squamous cell carcinomas or sarcomas of the breast
    • No bilateral breast cancer
    • No active local regional disease

  • Must have undergone a modified radical mastectomy with a level I and II with or without a level III axillary dissection (at least 10 nodes examined) within the past 8 months

    • Surgical margins negative for invasive and noninvasive ductal carcinoma
    • No gross extracapsular disease or residual disease in the axilla
    • Microscopic extracapsular extension allowed
  • No mastectomy after local failure following lumpectomy
  • Must have received adjuvant chemotherapy and/or hormonal therapy after mastectomy

  • Hormone receptor status:

    • Not specified

PATIENT CHARACTERISTICS:

Age:

  • 21 and over

Sex:

  • Female

Menopausal status:

  • Pre- or post-menopausal

Performance status:

  • Zubrod 0-1

Life expectancy:

  • Not specified

Hematopoietic:

  • Not specified

Hepatic:

  • Not specified

Renal:

  • Not specified

Other:

  • Not pregnant or nursing
  • Fertile patients must use effective contraception
  • No other prior malignancy within the past 5 years except adequately treated basal cell or squamous cell skin cancer or carcinoma in situ of the cervix
  • No serious medical or psychiatric illness that would preclude study compliance

PRIOR CONCURRENT THERAPY:

Biologic therapy:

  • No prior trastuzumab (Herceptin)

Chemotherapy:

  • See Disease Characteristics
  • No more than 6 weeks since prior adjuvant chemotherapy
  • No other prior chemotherapy
  • Concurrent adjuvant chemotherapy allowed

Endocrine therapy:

  • See Disease Characteristics
  • Concurrent adjuvant hormonal therapy allowed

Radiotherapy:

  • No prior chest wall or nodal radiotherapy

Surgery:

  • See Disease Characteristics
  • Breast reconstruction allowed

Other:

  • Concurrent registration on another adjuvant chemotherapy or hormonal therapy study is allowed

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
Active Comparator: surgery
surgery followed by observation
Procedure: surgery
surgery
Experimental: surgery followed by RT
Surgery followed by radiation therapy
Radiation: radiation therapy
Procedure: surgery
surgery

Collaborators and Investigators

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

Sponsor

Southwest Oncology Group

Collaborators

National Cancer Institute (NCI)
Eastern Cooperative Oncology Group
NCIC Clinical Trials Group
Cancer and Leukemia Group B
Radiation Therapy Oncology Group
North Central Cancer Treatment Group
NSABP Foundation Inc
American College of Surgeons

Investigators

  • Study Chair: Timothy J. Whelan, MD, Margaret and Charles Juravinski Cancer Centre
  • Study Chair: Lori J. Pierce, MD, University of Michigan Rogel Cancer Center
  • Study Chair: Stephen B. Edge, MD, Roswell Park Cancer Institute
  • Study Chair: Eric A. Strom, MD, FACR, M.D. Anderson Cancer Center
  • Study Chair: Lawrence J. Solin, MD, FACR, Abramson Cancer Center of the University of Pennsylvania
  • Study Chair: Lawrence B. Marks, MD, Duke University
  • Study Chair: Melvin Deutsch, MD, UPMC Cancer Center at UPMC Presbyterian

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

June 1, 2000

Primary Completion (Actual)

March 1, 2005

Study Completion (Actual)

March 1, 2005

Study Registration Dates

First Submitted

July 5, 2000

First Submitted That Met QC Criteria

January 26, 2003

First Posted (Estimate)

January 27, 2003

Study Record Updates

Last Update Posted (Estimate)

January 24, 2013

Last Update Submitted That Met QC Criteria

January 22, 2013

Last Verified

January 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CDR0000067971
  • U10CA032102 (U.S. NIH Grant/Contract)
  • S9927 (Other Identifier: NSABP)
  • CAN-NCIC-MA25 (Other Identifier: NCIC-CTG)
  • CLB-49910 (Other Identifier: CALGB)
  • RTOG-9915 (Other Identifier: RTOG)

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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