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Partial-Breast Radiation Therapy in Treating Women With Early-Stage Breast Cancer

25. mars 2015 oppdatert av: Ohio State University Comprehensive Cancer Center

A Single Institution, Prospective, Non-randomized Study of Partial Breast Irradiation Using the MammoSite Radiation Therapy System (Breast Brachytherapy Applicator)

RATIONALE: Internal radiation therapy uses radioactive material placed directly into or near a tumor to kill tumor cells. It may also cause less damage to normal tissue.

PURPOSE: This phase II trial is studying how well partial-breast radiation therapy works in treating women with early-stage breast cancer.

Studieoversikt

Status

Tilbaketrukket

Forhold

Brystkreft

Intervensjon / Behandling

Detaljert beskrivelse

OBJECTIVES:

Primary

To examine the efficacy of MammoSite® Radiation Therapy System (RTS) in delivering partial-breast irradiation to women with early-stage breast cancer.

Secondary

To assess the toxicities associated with MammoSite® RTS in these patients.
To evaluate the cosmetic results in the breast after brachytherapy with the MammoSite® RTS.
To correlate the cosmetic results with the use of chemotherapy, volume of the implant, and distance from the implant to the skin.
To correlate the local recurrence rate with time between surgery and implant.

OUTLINE: Patients undergo placement of the MammoSite® Radiation Therapy System (RTS) device into the cavity where the tumor was removed either at the time of surgery or percutaneously under ultrasound guidance after surgery. Within 2-5 days after the device implant, patients undergo partial-breast irradiation delivered by MammoSite® RTS twice daily for 5 days.

After completion of study therapy, patients are followed up periodically for 5 years.

Studietype

Intervensjonell

Fase

Fase 2

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

45 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Hunn

Beskrivelse

DISEASE CHARACTERISTICS:

Histologically confirmed ductal carcinoma in situ (DCIS) of the breast or invasive breast adenocarcinoma
- Stage 0, I, or II (T2, N0; tumor size ≤ 3 cm) disease
- Pathologic staging of the axilla preferred
  - Clinical staging of the axilla allowed for patients ≥ 70 years of age with hormone receptor-positive tumors
Unicentric tumor
- Microscopic multifocality allowed as long as the total tumor size is ≤ 3 cm
Must have undergone lumpectomy as definitive surgery
- Negative surgical margins, defined as no tumor at the inked margin of resection after final surgery
  - Re-excision to obtain negative margins allowed
Must have adequate skin spacing between balloon surface and surface of the skin and lung (≥ 7 mm)
No multicentric carcinoma (invasive or DCIS) in more than one quadrant
No clinically or pathologically positive regional lymph nodes
No extensive intraductal component, defined as DCIS extending beyond the primary invasive component into normal breast parenchyma and composing > 25% of the primary tumor
Hormone receptor status not specified

PATIENT CHARACTERISTICS:

Menopausal status not specified
Not pregnant or nursing
Negative pregnancy test
Fertile patients must use effective contraception
No collagen-vascular disease, including any of the following:
- Dermatomyositis
- Systemic lupus erythematosus
- Scleroderma-mixed connective tissue disease

PRIOR CONCURRENT THERAPY:

See Disease Characteristics

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Primært formål: Behandling
Tildeling: N/A
Intervensjonsmodell: Enkeltgruppeoppdrag
Masking: Ingen (Open Label)

Hva måler studien?

Primære resultatmål

Resultatmål	Tiltaksbeskrivelse	Tidsramme
Proportion of local recurrence Tidsramme: up to 5 years	Local recurrence is defined as either invasive or non-invasive local recurrence within the target volume. Ipsilateral elsewhere recurrence is defined as either invasive or non-invasive local recurrence outside of the target volume.	up to 5 years

Sekundære resultatmål

Resultatmål	Tidsramme
Safety and toxicity Tidsramme: up to 30 months after radiotherapy	up to 30 months after radiotherapy
Cosmetic results Tidsramme: up to 30 months	up to 30 months

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Ohio State University Comprehensive Cancer Center

Etterforskere

Hovedetterforsker: Edward Kim, MD, Ohio State University Comprehensive Cancer Center

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Hjelpsomme linker

Jamesline

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Datoer for studieregistrering

Først innsendt

4. november 2009

Først innsendt som oppfylte QC-kriteriene