- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef 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.
Studie Overzicht
Gedetailleerde beschrijving
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.
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
-
-
England
-
Sutton, England, Verenigd Koninkrijk, SM2 5PT
- Royal Marsden - Surrey
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
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
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Actieve vergelijker: 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
|
|
Experimenteel: Arm II
Patients undergo reduced whole breast radiotherapy and 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
|
|
Experimenteel: 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
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
|---|---|
|
Local tumor control in the ipsilateral breast (i.e., true recurrence plus new primary tumor) as confirmed by cytological or histological assessment
Tijdsspanne: 5 years
|
5 years
|
Secundaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
|---|---|
|
Location of tumor relapse
Tijdsspanne: 5 years
|
5 years
|
|
Contralateral primary breast cancer or other primary tumors as confirmed by cytological or histological assessment
Tijdsspanne: 5 years
|
5 years
|
|
Regional and distant metastases
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 5 years
|
5 years
|
|
Cost-effectiveness as assessed by EQ-5D questionnaire at baseline, 6 months, and 1, 2, and 5 years
Tijdsspanne: 10 years
|
10 years
|
Medewerkers en onderzoekers
Medewerkers
Onderzoekers
- Hoofdonderzoeker: Charlotte E Coles, PhD, University of Cambrige, England
Publicaties en nuttige links
Algemene publicaties
- 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.
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Werkelijk)
Studie voltooiing (Verwacht)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- CDR0000629768
- NIHR 2253 (Andere identificatie: NIHR)
- ICR-CTSU/2006/10001 (Andere identificatie: ICR-CTSU)
- ISRCTN12852634 (Register-ID: ISRCTN)
- CRUK/06/003 (Ander subsidie-/financieringsnummer: Cancer Research UK)
- 06/Q1605/128 (Andere identificatie: Main Research Ethics Committee)
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .