Radiation Therapy in Treating Women Who Have Undergone Breast Conservation Surgery and Systemic Therapy for Early Breast Cancer
Randomized Trial Testing Dose Escalated Intensity Modulated Radiotherapy for Women Treated by Breast Conservation Surgery and Appropriate Systemic Therapy for Early Breast Cancer
RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Specialized radiation therapy, such as intensity-modulated radiation therapy, that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue. It is not yet known which radiation therapy schedule is more effective in treating breast cancer.
PURPOSE: This randomized phase III trial is studying three different radiation therapy schedules to compare how well they work in treating women who have undergone breast conservation surgery and systemic therapy for early breast cancer.
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
OBJECTIVES:
- To test dose-escalated intensity-modulated radiotherapy after breast conservation surgery in women with early breast cancer who are at higher than average risk for local recurrence.
OUTLINE: This is a multicenter study. Patients are stratified according to center. Patients are randomized to 1 of 3 treatment arms.
- Arm I (control): Patients undergo sequential boost dose intensity-modulated radiotherapy (IMRT) 5 days a week for 4.6 weeks (23 fractions; 56 Gy).
- Arm II: Patients undergo concurrent boost dose IMRT 5 days a week for 3 weeks (15 fractions; 48 Gy).
- Arm III: Patients undergo concurrent boost dose IMRT 5 days a week for 3 weeks (15 fractions; 53 Gy).
Quality-of-life questionnaires are administered at baseline, 6 months, and at 1, 3, and 5 years. Photograph assessments of the breasts are taken at baseline and at 3 and 5 years. Blood samples are collected at baseline and periodically thereafter. Tissue samples are also collected from primary tumor, including new primary tumor in either breast, and recurrent tumor.
After completion of study treatment, patients are followed annually for 10 years.
Tipo di studio
Tipo di studio
Iscrizione (Anticipato)
Iscrizione
Fase
Fase
- Fase 3
Contatti e Sedi
Luoghi di studio
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England
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Sutton, England, Regno Unito, SM2 5PT
- Reclutamento
- Royal Marsden - Surrey
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Contatto:
- John R. Yarnold, MD, FRCR
- Numero di telefono: 44-20-8661-3388
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
DISEASE CHARACTERISTICS:
Histologically confirmed invasive breast cancer
- Resectable, unilateral disease
- T1-3, N0-1, M0 disease
- Has undergone prior breast conservation surgery with complete microscopic resection AND received appropriate systemic therapy for early breast cancer
Requires a tumor bed boost plus whole breast radiotherapy as indicated by ≥ 1 of the following:
- Age 18-49 years
- Tumor size > 2.0 cm after primary surgery (maximum microscopic diameter of invasive component)
- Tumor of any size treated by primary medical therapy
- Grade III disease
- Minimum microscopic margin of noncancerous tissue < 5 mm (excluding deep margin if at deep fascia)
- Lymphovascular invasion
- Axillary node positive
- Hormone receptor status not specified
PATIENT CHARACTERISTICS:
- Menopausal status not specified
- No prior malignancy other than non-melanoma skin cancer or carcinoma in situ of the cervix
PRIOR CONCURRENT THERAPY:
- See Disease Characteristics
- No prior mastectomy
- No concurrent chemotherapy except primary or sequential chemotherapy
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
|---|---|
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Comparatore attivo: Arm I (control)
Patients undergo sequential boost dose intensity-modulated radiotherapy (IMRT) 5 days a week for 4.6 weeks (23 fractions; 56 Gy).
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Given as 48, 53, or 56 Gy
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Sperimentale: Arm II
Patients undergo concurrent boost dose IMRT 5 days a week for 3 weeks (15 fractions; 48 Gy).
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Given as 48, 53, or 56 Gy
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Sperimentale: Arm III
Patients undergo concurrent boost dose IMRT 5 days a week for 3 weeks (15 fractions; 53 Gy).
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Given as 48, 53, or 56 Gy
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
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Palpable induration inside the boost volume of the irradiated breast
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
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Sopravvivenza globale
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Other late adverse effects in normal tissue as measured by clinical and photographic assessments and patient self-assessments (quality-of-life questionnaires)
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Local tumor control
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Location of tumor relapse in breast
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Contralateral primary tumors
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Regional and distant metastases
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Collaboratori e investigatori
Sponsor
Sponsor
Investigatori
Investigatori
- Investigatore principale: John R. Yarnold, MD, FRCR, Royal Marsden NHS Foundation Trust
Studiare le date dei record
Studia le date principali
Inizio studio
Inizio studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- CDR0000629770
- ICR-IMPORT-HIGH
- ICR-CTSU/2007/10013
- ISRCTN47437448
- EU-20897
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