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.
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
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 de estudo
Inscrição (Antecipado)
Estágio
- Fase 3
Contactos e Locais
Locais de estudo
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England
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Sutton, England, Reino Unido, SM2 5PT
- Recrutamento
- Royal Marsden - Surrey
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Contato:
- John R. Yarnold, MD, FRCR
- Número de telefone: 44-20-8661-3388
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
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
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
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Comparador Ativo: 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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Experimental: 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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Experimental: 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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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
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Palpable induration inside the boost volume of the irradiated breast
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Medidas de resultados secundários
Medida de resultado |
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Sobrevida geral
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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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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: John R. Yarnold, MD, FRCR, Royal Marsden NHS Foundation Trust
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Estimativa)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- CDR0000629770
- ICR-IMPORT-HIGH
- ICR-CTSU/2007/10013
- ISRCTN47437448
- EU-20897
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