A Comparison of Intra-operative Radiotherapy Boost With External Beam Radiotherapy Boost in Early Breast Cancer.
TARGIT-B
An International Randomised Controlled Trial to Compare Targeted Intra-operative Radiotherapy Boost With Conventional External Beam Radiotherapy Boost After Lumpectomy for Breast Cancer in Women With a High Risk of Local Recurrence.
2 other identifiers
interventional
1,796
12 countries
34
Brief Summary
TARGIT-Boost is an international randomised clinical trial designed to test the hypothesis that the tumour bed boost delivered as a single dose of targeted intraoperative radiotherapy (TARGIT-B) is superior to the conventional course of external beam radiotherapy boost (EBRT-Boost), especially in women with high risk of local recurrence. It is a pragmatic trial in which each participating centre can use the local predefined inclusion/exclusion criteria for entry into the trial. Only centres with access to the Intrabeam® (Carl Zeiss) are eligible to enter patients into the trial. Eligible patients are those with a higher risk of local recurrence after breast conserving surgery. After giving consent patients are randomised to either TARGIT Boost or EBRT Boost. All patients will receive whole breast EBRT. They may receive any other adjuvant treatments as deemed necessary. The protocol recommends that patients be followed at six monthly intervals for three years and then annually. The primary endpoint is ipsilateral breast recurrence rate. Secondary endpoints are relapse-free survival, site of recurrence, overall survival (breast-cancer specific and non-breast cancer deaths) patient satisfaction and quality of life.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jun 2013
Longer than P75 for not_applicable
34 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 12, 2013
CompletedFirst Posted
Study publicly available on registry
February 15, 2013
CompletedStudy Start
First participant enrolled
June 1, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2022
CompletedJuly 12, 2019
July 1, 2019
8.6 years
February 12, 2013
July 10, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Local tumour control (defined as no recurrent tumour in the ipsilateral breast).
To evaluate whether a tumour bed boost in the form of a single fraction of radiotherapy given intra-operatively and targeted to the tissues at the highest risk of local recurrence is superior (in terms of local tumour control) to standard post-operative external beam radiotherapy boost, after breast conserving surgery in women undergoing breast conserving therapy who have a higher risk of local recurrence.
Five year median follow-up
Secondary Outcomes (5)
Site of relapse within the treated breast
5 years median follow-up
Relapse-free survival
Five year median follow-up
Overall survival
Five year median follow-up.
Adverse events related to the primary treatment of the breast cancer.
Five year median follow-up.
Quality of life assessed by patient completed validated questionnaires.
Five year median follow-up
Study Arms (2)
TARGIT
EXPERIMENTALThe experimental policy is to give targeted intra-operative radiotherapy (TARGIT-Boost) in a single dose to substitute for the usual boost dose, in addition to whole breast external beam radiotherapy delivered according to local treatment guidelines.
External beam radiotherapy boost
ACTIVE COMPARATORThe conventional policy is to receive radiation boost to the tumour bed delivered by external beam radiotherapy (EBRT) in addition to whole breast external beam radiotherapy delivered according to local treatment guidelines.
Interventions
Boost to the tumour bed, with whole breast EBRT delivered according to local policy.
Eligibility Criteria
You may qualify if:
- At least one of these criteria must be satisfied:
- Less than 46 years of age
- More than 45 years of age, but with one of the following poor prognostic factors:
- lymphovascular invasion
- gross nodal involvement (not micrometastasis)
- more than one tumour in the breast but still suitable for breast conserving surgery through a single specimen
- More than 45 years of age, but with at least two of the following poor prognostic factors
- ER and/or PgR negative
- Grade 3 histology
- Positive margins at first excision
- Those patients with large tumours which have responded to neo-adjuvant chemo- or hormone therapy in an attempt to shrink the tumour and are suitable for breast conserving surgery as a result.
- Lobular carcinoma or Extensive Intraductal Component (EIC)
- A list (one to many) of high risk factors are present (as predefined in the policy document) that give a high risk of local recurrence.
- Patients with either HER2 positive or HER2 negative can be included.
You may not qualify if:
- Bilateral breast cancer at the time of diagnosis.
- Patients with any severe concomitant disease that may limit their life expectancy
- Previous history of malignant disease does not preclude entry if the expectation of relapse-free survival at 10 years is 90% or greater (e.g., non-melanoma skin cancer, CIN, etc).
- No more than 30 days can have elapsed between last breast cancer surgery (not axillary) and randomisation for patients in the post-pathology stratification unless part of a specific clinical trial that addresses the question of timing or tumour bed can be reliably identified, e.g., by ultrasound.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (34)
Helen Rey Breast Cancer Research Foundation
Los Angeles, California, United States
Memorial Health University Medical Center
Savannah, Georgia, United States
Beaumont Health - Royal Oak
Detroit, Michigan, United States
Lakeland Regional Health System
Saint Joseph, Michigan, United States
Ashikari Breast Center
Dobbs Ferry, New York, 10522, United States
Cleveland Clinic
Cleveland, Ohio, United States
West Virginia University
Morgantown, West Virginia, United States
Aurora Breast Center
Green Bay, Wisconsin, United States
Beijing Cancer Hospital
Beijing, China
Institut Bergonié
Bordeaux, France
Centre François Baclesse
Caen, France
Centre Georges François Leclerc
Dijon, France
Centre Léon Bérard
Lyon, France
Hôpital Nord
Marseille, France
Institut de Cancerologie de l'Ouest site René Gauducheau
Nantes, 44805, France
Institut Universitaire du Cancer de Toulouse - Oncopole
Toulouse, France
Centro Di Riferimento Oncologico Di Aviano
Aviano, Italy
Istituto Oncologico Veneto
Padua, Italy
University Malaya Medical Centre
Kuala Lumpur, Malaysia
University of Dammam
Dammam, Saudi Arabia
Netcare Milpark Hospital
Johannesburg, South Africa
Gangnam Severance Hospital
Seoul, South Korea
Institut Català d'Oncologia
Barcelona, Spain
Hospital Universitario Dr Negrín
Las Palmas de Gran Canaria, Spain
Brust-Zentrum Onkologie
Zurich, Switzerland
Queen Sirikit Cantre for Breast Cancer
Bangkok, Thailand
Princess Alexandra Hospital NHS Trust
Harlow, United Kingdom
Whittington Hospital
London, N19 5NF, United Kingdom
Royal Free London NHS Trust
London, NW3 2QG, United Kingdom
Guy's Hospital
London, United Kingdom
Hospital of St John and St Elizabeth
London, United Kingdom
Princess Grace Hospital
London, United Kingdom
The Great Western Hospital
Swindon, SN3 6BB, United Kingdom
Hampshire Hospitals NHS Foundation Trust
Winchester, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jayant S Vaidya, MBBS FRCS
University College, London
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 12, 2013
First Posted
February 15, 2013
Study Start
June 1, 2013
Primary Completion
January 1, 2022
Study Completion
April 1, 2022
Last Updated
July 12, 2019
Record last verified: 2019-07