Internal Radiation Therapy After Lumpectomy in Treating Women With Ductal Carcinoma in Situ

This study has been terminated.
(Unable to recruit further patients.)
Information provided by (Responsible Party):
Masonic Cancer Center, University of Minnesota Identifier:
First received: February 9, 2006
Last updated: April 29, 2015
Last verified: November 2012

RATIONALE: Internal radiation uses radioactive material placed directly into or near a tumor to kill tumor cells. Giving internal radiation therapy using a special radiation therapy device may kill any tumor cells that remain after surgery.

PURPOSE: This phase II trial is studying how well internal radiation therapy after lumpectomy works in treating women with ductal carcinoma in situ.

Condition Intervention Phase
Breast Cancer
Drug: Tamoxifen
Procedure: Lumpectomy
Radiation: brachytherapy
Phase 2

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Twin Cities Brachytherapy Study for Ductal Carcinoma in Situ A Phase II Trial

Resource links provided by NLM:

Further study details as provided by Masonic Cancer Center, University of Minnesota:

Primary Outcome Measures:
  • Number of Patients With Ipsilateral Breast Tumor Recurrence [ Time Frame: Month 6, Yearly ] [ Designated as safety issue: No ]
    Count of patients with early stage breast cancer who developed an ipsilateral breast tumor recurrence (IBTR) and failed after receiving breast-conserving therapy.

Secondary Outcome Measures:
  • Complication Rates [ Time Frame: Week 3, Month 6, Yearly ] [ Designated as safety issue: Yes ]
  • Cosmetic Outcome [ Time Frame: Months 6 and 12 ] [ Designated as safety issue: No ]
    Physician rating of good or excellent using EORTC criteria

Enrollment: 45
Study Start Date: December 2002
Study Completion Date: March 2013
Primary Completion Date: March 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Lumpectomy with Brachytherapy
Patients with ductal carcinoma in situ (DCIS, a non-invasive form of breast cancer) treated with standard lumpectomy/brachytherapy following by radiation using the MammoSite (FDA approved a balloon-catheter device placed in the lumpectomy cavity through which high dose radiation is delivered). Tamoxifen may be used postoperatively at the discretion of the treating physicians and patient.
Drug: Tamoxifen
Tamoxifen may be used postoperatively at the discretion of the treating physicians and patient
Procedure: Lumpectomy
A standard lumpectomy will be performed with an attempt to remove at least 1 cm of gross margin around the DCIS.
Radiation: brachytherapy
Treatment will be given in 10 fractions of 3.4 Gy per fraction twice a day, with a minimum of 6 hours between fractions. In general, brachytherapy will start between 2 - 5 days of implant. All treatments will be done using a commercially available HDR and 192Ir radioactive sources.

Detailed Description:



  • Determine the ipsilateral breast tumor recurrence rate in women with ductal carcinoma in situ undergoing lumpectomy followed by brachytherapy using the MammoSite^® Radiation Therapy System.


  • Determine the early and late complication rates and cosmetic outcome in these patients after treatment.

OUTLINE: Patients undergo lumpectomy. Patients with negative tumor margins* (no ink on tumor) undergo placement of the MammoSite^® Radiation Therapy System at the time of lumpectomy or within 4 weeks after surgery.

NOTE: *If positive margins are present, the surgeon may elect to resect the positive margins and then insert a new MammoSite® device if all other eligibility criteria are met.

Beginning 2-5 days after placement of the MammoSite^®, patients undergo brachytherapy through the MammoSite^® twice daily for 5 days (a total of 10 fractions).

After completion of study treatment, patients are followed periodically for ≥ 5 years.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Ductal carcinoma in situ (DCIS) confirmed by excisional or needle biopsy
  • Size: < 3 cm on mammogram
  • Unicentric disease
  • Ability to place MammoSite device at time of lumpectomy or within 4 weeks of lumpectomy
  • Patient Age: ≥ 18 years, no upper limit
  • Life expectancy > 5 years

Exclusion Criteria:

  • Prior history of cancer other than basal or squamous cell skin cancer or in situ cancer of the cervix
  • Pregnant or breast feeding
  • Multicentric disease
  • Diagnosis of collagen vascular diseases, such as systemic lupus erythematosis, scleroderma, or dermatomyositis
  Contacts and Locations
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Please refer to this study by its identifier: NCT00290654

United States, Minnesota
Masonic Cancer Center, University of Minnesota
Minneapolis, Minnesota, United States, 55455
Sponsors and Collaborators
Masonic Cancer Center, University of Minnesota
Principal Investigator: Todd M. Tuttle, MD Masonic Cancer Center, University of Minnesota
  More Information

Responsible Party: Masonic Cancer Center, University of Minnesota Identifier: NCT00290654     History of Changes
Other Study ID Numbers: 2002LS097  UMN-0211M35761 
Study First Received: February 9, 2006
Results First Received: April 29, 2015
Last Updated: April 29, 2015
Health Authority: United States: Food and Drug Administration

Keywords provided by Masonic Cancer Center, University of Minnesota:
ductal breast carcinoma in situ
breast cancer in situ

Additional relevant MeSH terms:
Carcinoma in Situ
Carcinoma, Ductal
Carcinoma, Intraductal, Noninfiltrating
Neoplasms by Histologic Type
Neoplasms, Ductal, Lobular, and Medullary
Neoplasms, Glandular and Epithelial
Antineoplastic Agents
Antineoplastic Agents, Hormonal
Bone Density Conservation Agents
Estrogen Antagonists
Estrogen Receptor Modulators
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Pharmacologic Actions
Physiological Effects of Drugs
Selective Estrogen Receptor Modulators
Therapeutic Uses processed this record on May 04, 2016