- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT00814567
Radiation Therapy in Women With Low Risk Early-Stage Breast Cancer Who Have Undergone Breast Conservation Surgery (IMPORT)
Randomised Trial Testing Intensity Modulated and Partial Organ Radiotherapy After Breast Conservation Surgery for Early Breast Cancer
RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Giving radiation therapy after surgery may kill any tumor cells that remain after surgery. It is not yet known whether intensity-modulated radiation therapy is more effective than standard radiation therapy in treating patients with early-stage breast cancer.
PURPOSE: This randomized phase III trial is comparing radiation therapy regimens in treating women with early-stage breast cancer who have undergone breast-conservation surgery.
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
OBJECTIVES:
- To test partial breast radiotherapy using intensity-modulated techniques following complete local tumor excision in women with low-risk, early stage breast cancer.
OUTLINE: This is a multicenter study.
Patients are stratified according to center (not participating in sub-studies vs participating in sub-studies). Patients are randomized to 1 of 3 treatment arms.
- Arm I (control): Patients undergo standard whole breast radiotherapy once daily on days 1-5 (15 fractions) for 3 weeks.
- Arm II: Patients undergo reduced whole breast radiotherapy (15 fractions) and standard partial breast radiotherapy (15 fractions) once daily on days 1-5 for 3 weeks.
- Arm III: Patients undergo standard partial breast radiotherapy once daily on days 1-5 (15 fractions) for 3 weeks.
All patients complete a family history questionnaire at baseline. Patients also undergo blood sample collection at baseline and paraffin-embedded tissue collection at follow-up for molecular studies analyzing inter-patient variation by microarrays.
Patients in centers participating in sub-studies undergo quality of life and health economic assessment at baseline, 6 months, and 1, 2, and 5 years. These patients also undergo photographic assessment at baseline, 2 years, and 5 years.
After completion of study treatment, patients are followed for 10 years.
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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England
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Sutton, England, Reino Unido, SM2 5PT
- Royal Marsden - Surrey
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
DISEASE CHARACTERISTICS:
Diagnosis of low-risk early stage breast cancer, meeting the following criteria:
Invasive adenocarcinoma
- No invasive carcinoma of classical lobular type
- lympho-vascular invasion present or absent
- Tumor size pathologically determined to be ≤ 3.0 cm in diameter (pT1-2) (< 3.1 cm maximum microscopic diameter of invasive component)
- Unifocal disease
- Grade I, II, or III disease
- Axillary lymph nodes negative or 1-3 nodes positive (pN0 or pN+(1-3))
Must have undergone breast conservation surgery with or without adjuvant systemic therapy
- Minimum microscopic margin of non-cancerous tissue ≥ 2 mm (excluding deep margin if this is at deep fascia)
- At low risk of local recurrence after radiotherapy (< 1% annual risk local recurrence)
- No prior mastectomy
- No blood-borne metastases
PATIENT CHARACTERISTICS:
- No prior malignancy except nonmelanoma skin cancer
PRIOR CONCURRENT THERAPY:
- See Disease Characteristics
No prior endocrine therapy or chemotherapy
- Neoadjuvant endocrine therapy allowed provided the tumour is < 3.0 cm and all other inclusion criteria are met
- No primary endocrine therapy as a replacement for surgery
- No concurrent chemoradiotherapy
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
---|---|
Comparador activo: Arm I (control)
Patients undergo standard whole breast radiotherapy once daily on days 1-5 for 3 weeks.
|
Patients undergo standard whole breast, reduced whole breast, or standard partial breast radiotherapy
|
Experimental: Arm II
Patients undergo reduced whole breast radiotherapy and standard partial breast radiotherapy once daily on days 1-5 for 3 weeks.
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Patients undergo standard whole breast, reduced whole breast, or standard partial breast radiotherapy
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Experimental: Arm III
Patients undergo standard partial breast radiotherapy once daily on days 1-5 for 3 weeks.
|
Patients undergo standard whole breast, reduced whole breast, or standard partial breast radiotherapy
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
---|---|
Local tumor control in the ipsilateral breast (i.e., true recurrence plus new primary tumor) as confirmed by cytological or histological assessment
Periodo de tiempo: 5 years
|
5 years
|
Medidas de resultado secundarias
Medida de resultado |
Periodo de tiempo |
---|---|
Location of tumor relapse
Periodo de tiempo: 5 years
|
5 years
|
Contralateral primary breast cancer or other primary tumors as confirmed by cytological or histological assessment
Periodo de tiempo: 5 years
|
5 years
|
Regional and distant metastases
Periodo de tiempo: 5 years
|
5 years
|
Late adverse effects in normal tissue normal tissues as determined periodically by photographic assessments (in a subset of patients), physician assessments, and patient self-assessments
Periodo de tiempo: 5 years
|
5 years
|
Quality of life as assessed by EORTC QLQ C-30, EORTC QLQ-BR23, BIS, and HADS questionnaires in a subset of patients at baseline, 6 months, and 1, 2, and 5 years
Periodo de tiempo: 5 years
|
5 years
|
Cost-effectiveness as assessed by EQ-5D questionnaire at baseline, 6 months, and 1, 2, and 5 years
Periodo de tiempo: 10 years
|
10 years
|
Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Charlotte E Coles, PhD, University of Cambrige, England
Publicaciones y enlaces útiles
Publicaciones Generales
- Coles CE, Griffin CL, Kirby AM, Titley J, Agrawal RK, Alhasso A, Bhattacharya IS, Brunt AM, Ciurlionis L, Chan C, Donovan EM, Emson MA, Harnett AN, Haviland JS, Hopwood P, Jefford ML, Kaggwa R, Sawyer EJ, Syndikus I, Tsang YM, Wheatley DA, Wilcox M, Yarnold JR, Bliss JM; IMPORT Trialists. Partial-breast radiotherapy after breast conservation surgery for patients with early breast cancer (UK IMPORT LOW trial): 5-year results from a multicentre, randomised, controlled, phase 3, non-inferiority trial. Lancet. 2017 Sep 9;390(10099):1048-1060. doi: 10.1016/S0140-6736(17)31145-5. Epub 2017 Aug 2.
- Bhattacharya IS, Haviland JS, Kirby AM, Kirwan CC, Hopwood P, Yarnold JR, Bliss JM, Coles CE; IMPORT Trialists. Patient-Reported Outcomes Over 5 Years After Whole- or Partial-Breast Radiotherapy: Longitudinal Analysis of the IMPORT LOW (CRUK/06/003) Phase III Randomized Controlled Trial. J Clin Oncol. 2019 Feb 1;37(4):305-317. doi: 10.1200/JCO.18.00982. Epub 2018 Dec 11.
- Kirby AM, Bhattacharya IS, Wilcox M, Haviland JS. The IMPORT LOW Trial: Collaborative Research Accelerates Practice Change in Breast Radiotherapy. Clin Oncol (R Coll Radiol). 2019 Jan;31(1):5-8. doi: 10.1016/j.clon.2018.08.007. Epub 2018 Sep 17. No abstract available.
- Coles C, Yarnold J; IMPORT Trials Management Group. The IMPORT trials are launched (September 2006). Clin Oncol (R Coll Radiol). 2006 Oct;18(8):587-90. doi: 10.1016/j.clon.2006.07.010. No abstract available.
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Actual)
Finalización del estudio (Anticipado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- CDR0000629768
- NIHR 2253 (Otro identificador: NIHR)
- ICR-CTSU/2006/10001 (Otro identificador: ICR-CTSU)
- ISRCTN12852634 (Identificador de registro: ISRCTN)
- CRUK/06/003 (Otro número de subvención/financiamiento: Cancer Research UK)
- 06/Q1605/128 (Otro identificador: Main Research Ethics Committee)
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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