Carcinoma, Ductal, BreastDCISNCT00470236
Radiation Doses and Fractionation Schedules in Non-low Risk Ductal Carcinoma In Situ (DCIS) of the Breast
A study testing Standard WB fractionation, Shorter WB fractionation and Standard WB fractionation+Boost in people with Carcinoma, Ductal, Breast, run by Trans Tasman Radiation Oncology Group at 120 sites in 11 countries.
Trial summary
Hypotheses: 1. The addition of tumour bed boost after BCS in women with non-low risk DCIS reduces the risk of local recurrence (invasive or intraductal recurrence in the ipsilateral breast). 2. The risk of local recurrence in the shorter fractionation arm is not worse than that for the standard fractionation arm. 3. Read more about this study
- Who is it for?
- Ages 18 years and older, women only
- Conditions the study is for
- Carcinoma, Ductal, Breast
- What is being tested?
- Standard WB fractionation, Shorter WB fractionation and Standard WB fractionation+Boost
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,608 participants
- Where
- 120 sitesin 11 countries
- Study dates
- Jun 2007to Jun 2024
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients must fulfill all of the following criteria for admission to study:
- Women ≥ 18 years.
- Histologically proven DCIS of the breast without an invasive component.
- Bilateral mammograms performed within 6 months prior to randomization.
- Clinically node-negative.
- Treated by breast conserving surgery (primary excision or re-excision) with complete microscopic excision and clear radial margins of ≥1 mm* (*Patients with superficial or deep resection margin of <1 mm are eligible if surgery has removed all of the intervening breast tissue from the subcutaneous tissue to the pectoralis fascia).
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- Women who are at high risk of local recurrence due to:
- Age < 50 years; OR
- Age ≥ 50 years plus at least one of the following:
- Symptomatic presentation
- Palpable tumour
- Multifocal disease
- Microscopic tumour size ≥ 1.5 cm in maximum dimension
- Intermediate or high nuclear grade
- Central necrosis
- Comedo histology
- Radial* surgical resection margin < 10 mm. (*Patients with superficial or deep resection margin of < 10 mm are eligible if surgery has not removed all of the intervening breast tissue from the subcutaneous tissue to the pectoralis fascia.)
- Assessed by surgeon and radiation oncologist to be suitable for breast conserving therapy including whole breast RT.
- Ability to tolerate protocol treatment.
- Protocol RT should preferably commence within 8 weeks but must commence no later than 12 weeks from the last surgical procedure.
- ECOG performance status 0, 1 or 2.
- Patient's life expectancy > 5 years.
- Availability for long-term follow-up.
- Written informed consent.
Who cannot join
- Patients who fulfill any of the following criteria are not eligible for admission to study:
- Multicentric disease or extensive microcalcifications that could not be completely excised by breast conserving surgery with radial margins of ≥1 mm*.
- Patients with superficial and/or deep margin of <1 mm are eligible if surgery has removed all of the intervening breast tissue from the subcutaneous tissue to the pectoralis fascia.
- Presence of tumour cells in lymph nodes detected using H\&E or immunohistochemical examination (if lymph node biopsy or dissection has been performed).
- Locally recurrent breast cancer.
- Previous DCIS or invasive cancer of the contralateral breast.
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- Bilateral DCIS of the breasts
- Synchronous invasive carcinoma of the contralateral breast
- Other concurrent or previous malignancies except:
- Non-melanomatous skin cancer;
- Carcinoma in situ of the cervix or endometrium; and
- Invasive carcinoma of the cervix, endometrium, colon, thyroid and melanoma treated at least five years prior to study admission without disease recurrence.
- Serious non-malignant disease that precludes definitive surgical or radiation treatment (e.g., scleroderma, systemic lupus erythematosus, cardiovascular/pulmonary/renal disease).
- ECOG performance status ≥ 3.
- Women who are pregnant or lactating.
Trial locations and contacts
120 sites in 11 countries.
120 sites in 11 countries
United Kingdom39 sites
Aberdeen Royal Infirmary
Aberdeen
Basildon University Hospital
Basildon
Belfast City Hospital
Belfast
Queen Elizabeth Hospital
Birmingham
Sandwell and West Birmingham Hospitals NHS Trust
Birmingham
Pilgram Hospital
Boston, Lincolnshire
Bristol Haematology & Oncology
Bristol
Queens Hospital Burton
Burton-on-Trent, Staffordshire
Gloucestershire Royal & Cheltenham General Hospitals
Cheltenham, Gloucestershire
Colchester Hospital
Colchester
Coventry Arden Cancer Centre
Coventry
Royal Derby Hospital
Derby
Dumfries & Galloway Royal Infirmary
Dumfries
Queen Margaret Hospital
Dunfermline
Edinburgh Western General Hospital
Edinburgh
The Beatson West of Scotland Cancer Centre
Glasgow
Royal Surrey County Hospital
Guildford
Ipswich Hospital
Ipswich
Kidderminster Hospital
Kidderminster
Leicester Royal Infirmary
Leicester
Lincoln County Hospital
Lincoln
Imperial College Healthcare Charing Cross
London
James Cook University Hospital
Middlesbrough
Mount Vernon Cancer Centre
Northwood, Middlesex
Nottingham University Hospitals
Nottingham
Churchill Hospital
Oxford, Headington
Royal Alexandra Hospital
Paisley
Alexandra Hospital
Redditch
Weston Park Hospital
Sheffield
The Shrewsbury and Telford Hospital NHS Trust
Shrewsbury
Ealing Hospital
Southall, Middlesex
Southend University Hopstial
Southend
Stafford Hospital
Stafford
University of North Staffordshire
Stoke-on-Trent, Staffordshire
Royal Marsden
Sutton
Kings Mill Hospital Nottingham
Sutton in Ashfield, Nottinghamshire
Musgrove Park Hospital
Taunton, Somerset
Warwick Hospital
Warwick
New Cross Hospital
Wolverhampton
Australia26 sites
Royal Adelaide Hospital
Adelaide, South Australia, 5000
Premion - Wesley
Auchenflower, Queensland, 4006
Royal Brisbane and Women's Hospital
Brisbane, Queensland, 4006
Princess Alexandra Hospital
Brisbane, Queensland, 4102
Campbelltown Hospital
Campbelltown, New South Wales, 2560
Barwon Health - Andrew Love Cancer Care Centre, Geelong Hospital
Geelong, Victoria, 3220
Royal Hobart Hospital
Hobart, Tasmania, 7000
Nepean Cancer Care Centre
Kingswood, New South Wales
St George Hospital
Kogarah, New South Wales, 2217
Launceston General Hospital
Launceston, Tasmania, 7250
Liverpool Hospital
Liverpool, New South Wales, 2170
Peter MacCallum Cancer Centre
Melbourne, Victoria, 3002
Austin Hospital
Melbourne, Victoria, 3084
William Buckland Radiotherapy Centre, Alfred Hospital
Melbourne, Victoria, 3181
Genesis Cancer Care (previously Premion) - Nambour
Nambour, Queensland
Sir Charles Gardiner Hospital
Nedlands, Western Australia, 6009
Royal Perth Hospital
Perth, Western Australia, 6001
Perth Radiation Oncology
Perth, Western Australia
Radiation Oncology - Mater Centre
South Brisbane, Queensland, 4101
Royal North Shore Hospital
St Leonards, New South Wales, 2065
Toowoomba Cancer Research Centre
Toowoomba, Queensland
North Queensland Oncology Service
Townsville, Queensland, 4810
Genesis Cancer Care (previously Premion) - Tugun
Tugun, Queensland, 4224
Riverina Cancer Care Centre
Wagga Wagga, New South Wales, 2650
Calvary Mater Newcastle
Waratah, New South Wales, 2298
Westmead Hospital
Wentworthville, New South Wales, 2145
Canada20 sites
Nova Scotia Cancer Centre
Halifax
Jurvanski Cancer Centre
Hamilton
Notre Dame Hospital
Hearst
BCCA Southern Interior - CAVK
Kelowna
London Regional Cancer Program
London
Saint John Regional Hospital
Miramichi
Leon Richard Oncology Centre
Moncton
Hospital Maisonneuve-Rosemont
Montreal
Lakeridge Health
Oshawa
CHUQ L'Hotel-Dieu de Quebec
Québec
McGill University Department of Oncology
Sainte-Anne-de-Bellevue
Allan Blair Cancer Centre
Saskatoon
Saskatoon Cancer Centre
Saskatoon
Universite de Sherbrooke - CUGH
Sherbrooke
Thunder Bay Regional Health Sciences Centre
Thunder Bay
Odette Cancer Centre
Toronto
Princess Margaret Hospital
Toronto
BCCA Vancouver Centre
Victoria
Vancouver Island Cancer Centre
Victoria
Cancer Care Manitoba
Winnipeg
Netherlands9 sites
Academisch Medisch Centrum
Amsterdam
Cancer Institute Antoni Van Leeuwenhoekziekenhuis
Amsterdam
Arnhem 'S Radiotherapeutisch Instituut
Arnhem
Reinier de Graaf Groep
Delft
University Medical Centre Groningen
Groningen
Leiden University Medical Centre
Leiden
Maastricht Radiation Oncology Maastro Clinic
Maastricht
Medisch Centrum Haaglanden
Westeinde
ISALA Klinieken
Zwolle
Switzerland8 sites
University Hospital Basel
Basel
IOSI
Bellinzona
Inselspital Bern
Bern
Kantonsspital Graubunden
Chur
Kantonsspital Munsterlingen
Münsterlingen
Kantonsspital St. Gallen
Sankt Gallen
Brust-Zentrum Zurich-Seefeld
Zurich
Klinik Hirslanden
Zurich
Belgium7 sites
Onze Lieve Vrouw Ziekenhuis
Aalst
ZNA Middelheim
Antwerp
Cliniques Univeritaires St Luc
Brussels
Universitair Zielenhusi
Brussels
Hopital De Jolimont
Haine-Saint-Paul
AZ Groeninghe - Campus Maria's Voorzienigheid
Kortrijk
Algemeen Ziekenhis Sint-Augustinus
Wilrijk
Ireland3 sites
Cork University Hospital
Cork
University Hospital Galway
Galway
SLRON (St Luke's Rad Onc Network)
Rathgar
New Zealand3 sites
Auckland Hospital
Auckland, 1001
Christchurch Hospital
Christchurch, 8011
Waikato Hospital
Hamilton, 3204
France2 sites
Chr De Grenoble - La Tronche
Grenoble
Centre Antine Lacassagne
Nice
Italy2 sites
Centro Di Riferimento Oncologico - Aviano
Aviano
Fondazione Salvatore Maugeri
Pavia
About this study
Official title: A Randomised Phase III Study of Radiation Doses and Fractionation Schedules in Non-low Risk Ductal Carcinoma In Situ (DCIS) of the Breast
Hypotheses:
- The addition of tumour bed boost after BCS in women with non-low risk DCIS reduces the risk of local recurrence (invasive or intraductal recurrence in the ipsilateral breast).
- The risk of local recurrence in the shorter fractionation arm is not worse than that for the standard fractionation arm.
- A molecular signature predictive of invasive recurrence of DCIS will be detectable and the molecular signature may eventually have clinical utility for therapy individualization.
Read more
Overall Objectives:
- To improve the outcome of women with non-low risk DCIS treated with breast conserving therapy.
- To individualize treatment selection for women with DCIS to achieve long term disease control with minimal toxicity.
Read the detailed description
Specific objectives:
- To evaluate time to local recurrence in women with DCIS treated with breast conserving surgery followed by:
- whole breast RT alone versus whole breast RT plus tumour bed boost;
- RT using the standard fractionation schedule versus the shorter schedule.
- To evaluate time to disease recurrence and overall survival in women with DCIS treated with breast conserving surgery followed by:
- whole breast RT alone versus whole breast RT plus tumour bed boost;
- RT using the standard fractionation schedule versus the shorter schedule.
- To compare the toxicity of:
- whole breast RT alone versus whole breast RT plus tumour bed boost;
- RT using the standard fractionation schedule versus the shorter schedule.
- To compare the cosmetic outcome of:
- whole breast RT alone versus whole breast RT plus tumour bed boost;
- RT using the standard fractionation schedule versus the shorter schedule.
- To identify a molecular signature predictive of invasive recurrence of DCIS to facilitate therapy individualization.
- To assess inter-relationship of biomarkers and relationship between biomarker expression and specific histopathologic features of DCIS.
- To evaluate the quality of life of women treated with:
- whole breast RT alone versus whole breast RT plus tumour bed boost;
- RT using the standard fractionation schedule versus the shorter schedule.
- Conditions
- Carcinoma, Ductal, Breast
- Being tested
- Standard WB fractionation, Shorter WB fractionation, Standard WB fractionation+Boost, Shorter WB fractionation + Boost
- Keywords
- Ductal carcinoma in-situ, Breast conserving therapy, Whole breast radiation therapy, Tumour bed boost, Fractionation schedules, Completely excised non-low risk DCIS
- Medical subject headings
- Carcinoma, Ductal, Breast, Carcinoma, Intraductal, Noninfiltrating
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Standard WB fractionationRadiation
Also called Radiation
A total dose of 50 Gy in 25 fractions in 2-Gy daily fractions, 5 fractions per week (at least 9 fractions per fortnight).
Shorter WB fractionationRadiation
Also called Radiation
A total dose of 42.5 Gy in 16 fractions in 2.656-Gy daily fractions, 5 fractions per week (at least 9 fractions per fortnight).
Standard WB fractionation+BoostRadiation
Also called Radiation
Whole Breast: A total dose of 50 Gy in 25 fractions in 2-Gy daily fractions, 5 fractions per week (at least 9 fractions per fortnight).
Tumour bed: A total dose of 10 Gy in 5 fractions in 2-Gy daily fractions, 5 fractions per week.
Shorter WB fractionation + BoostRadiation
Also called Radiation
Whole breast: A total dose of 42.5 Gy in 16 fractions in 2.656-Gy daily fractions, 5 fractions per week (at least 9 fractions per fortnight).
Tumour bed: A total dose of 10 Gy in 4 fractions in 2.5-Gy daily fractions, 4 fractions per week.
| Study group | Role | What they receive |
|---|---|---|
| Arm 1 (Standard WB Fractionation) | Active comparator | Whole Breast RT alone - Standard fractionation schedule (50GY/25 Fractions/35days) Receives: Radiation: Standard WB fractionation |
| Arm 2 (Shorter WB Fractionation) | Experimental | Whole Breast RT alone - Shorter fractionation schedule (42.5 Gy/16 fractions/22 days) Receives: Radiation: Shorter WB fractionation |
| Arm 3 (Standard WB fractionation+Boost) | Active comparator | Whole Breast RT + tumor bed boost - Standard fractionation schedule (50 Gy/25 fractions/35 days; Boost 16 Gy/8 fractions/10 days) Receives: Radiation: Standard WB fractionation+Boost |
| Arm 4 (Shorter WB fractionation + Boost) | Experimental | Whole breast RT + tumour bed boost - Shorter fractionation schedule (42.5 Gy/16 fractions/22 days; Boost 16 Gy/8 fractions/10 days) Receives: Radiation: Shorter WB fractionation + Boost |
What is being measured
The primary outcome is the main question the study is designed to answer.
Time to local recurrence, measured from the date of randomization to the date of first evidence of local recurrence.
Measured: Main analysis after all patients have completed 5 years of follow-up. Updated analysis after 10 years of follow-up.
Secondary outcomes (5)
Overall survival
Measured: Measured from the date of randomization to the date of death from any cause. Main analysis of secondary outcomes after all patients have completed 5 years of follow-up. Updated analysis after 10 years of follow-up.
Time to disease recurrence
Measured: Measured from the date of randomization to the date of first evidence of recurrent disease. Main analysis of secondary outcomes after all patients have completed 5 years of follow-up. Updated analysis after 10 years of follow-up.
Cosmetic Outcome
Measured: Cosmetic assessment will take place at baseline, 12, 36 and 60 months post RT.
Radiation toxicity
Measured: Assessed at baseline, last week of RT, 3, 6, and 12 months post RT and then yearly until year 10.
Quality of Life change
Measured: Assessed at baseline, last week of RT, 6, 12, 24, 60 & 120 months post RT.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 May 2007 (estimated)
- Study startJun 2007
- Primary completionJun 2024 (estimated)
- Study completionJun 2024 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Carcinoma, Ductal, BreastStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 1,608 participants (actual)
Sponsor and investigators
- Lead sponsor
- Trans Tasman Radiation Oncology Group
- Sponsor type
- University, hospital or other
- Collaborators
- Breast International Group, NCIC Clinical Trials Group, Cancer Trials Ireland, Borstkanker Onderzoek Groep, ETOP IBCSG Partners Foundation, Scottish Cancer Trials Breast Group, European Organisation for Research and Treatment of Cancer - EORTC
- Responsible party
- Sponsor
- Investigators
- Boon Chua, Study chair, Prince of Wales Hospital Randwick
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00470236
- Sponsor's protocol ID
- TROG 07.01
- Other IDs
- NHMRC 454390, BIG 3-07, NCIC CTG MA.33, BOOG 2009-03, ICORG 10-06, EORTC 22085-10083, IBCSG 38-10, SCTBG 2009MayPR55
- Acronym
- DCIS
- Status last verified
- Mar 2023
- First submitted
- 3 May 2007
- Last updated
- 22 Mar 2023
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Chua BH, Link EK, Kunkler IH, Whelan TJ, Westenberg AH, Gruber G, Bryant G, Ahern V, Purohit K, Graham PH, Akra M, McArdle O, O'Brien P, Harvey JA, Kirkove C, Maduro JH, Campbell ID, Delaney GP, Martin JD, Vu TTT, Muanza TM, Neal A, Olivotto IA; BIG 3-07/TROG 07.01 trial investigators. Radiation doses and fractionation schedules in non-low-risk ductal carcinoma in situ in the breast (BIG 3-07/TROG 07.01): a randomised, factorial, multicentre, open-label, phase 3 study. Lancet. 2022 Aug 6;400(10350):431-440. doi: 10.1016/S0140-6736(22)01246-6.
PubMed 35934006King MT, Link EK, Whelan TJ, Olivotto IA, Kunkler I, Westenberg AH, Gruber G, Schofield P, Chua BH; BIG 3-07/TROG 07.01 trial investigators. Quality of life after breast-conserving therapy and adjuvant radiotherapy for non-low-risk ductal carcinoma in situ (BIG 3-07/TROG 07.01): 2-year results of a randomised, controlled, phase 3 trial. Lancet Oncol. 2020 May;21(5):685-698. doi: 10.1016/S1470-2045(20)30085-1. Epub 2020 Mar 20.
PubMed 32203696
Study at a glance
From the registry record, last updated by the sponsor on 22 Mar 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomised Phase III Study of Radiation Doses and Fractionation Schedules in Non-low Risk Ductal Carcinoma In Situ (DCIS) of the Breast
- ClinicalTrials.gov ID
- NCT00470236
- Acronym / sponsor ID
- DCIS / TROG 07.01
- Conditions
- Carcinoma, Ductal, Breast
- Keywords
- Ductal carcinoma in-situ, Breast conserving therapy, Whole breast radiation therapy, Tumour bed boost, Fractionation schedules, Completely excised non-low risk DCIS
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 1,608 participants (actual)
- Lead sponsor
- Trans Tasman Radiation Oncology GroupUniversity, hospital or other
- Collaborators
- Breast International Group, NCIC Clinical Trials Group, Cancer Trials Ireland, Borstkanker Onderzoek Groep, ETOP IBCSG Partners Foundation, Scottish Cancer Trials Breast Group, European Organisation for Research and Treatment of Cancer - EORTC
- Study start
- Jun 2007
- Primary completion
- Jun 2024 (estimated)
- Study completion
- Jun 2024 (estimated)
- First posted
- 7 May 2007 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Hypotheses:
- The addition of tumour bed boost after BCS in women with non-low risk DCIS reduces the risk of local recurrence (invasive or intraductal recurrence in the ipsilateral breast).
- The risk of local recurrence in the shorter fractionation arm is not worse than that for the standard fractionation arm.
- A molecular signature predictive of invasive recurrence of DCIS will be detectable and the molecular signature may eventually have clinical utility for therapy individualization.
Overall Objectives:
- To improve the outcome of women with non-low risk DCIS treated with breast conserving therapy.
- To individualize treatment selection for women with DCIS to achieve long term disease control with minimal toxicity.
Detailed description
Specific objectives:
- To evaluate time to local recurrence in women with DCIS treated with breast conserving surgery followed by:
- whole breast RT alone versus whole breast RT plus tumour bed boost;
- RT using the standard fractionation schedule versus the shorter schedule.
- To evaluate time to disease recurrence and overall survival in women with DCIS treated with breast conserving surgery followed by:
- whole breast RT alone versus whole breast RT plus tumour bed boost;
- RT using the standard fractionation schedule versus the shorter schedule.
- To compare the toxicity of:
- whole breast RT alone versus whole breast RT plus tumour bed boost;
- RT using the standard fractionation schedule versus the shorter schedule.
- To compare the cosmetic outcome of:
- whole breast RT alone versus whole breast RT plus tumour bed boost;
- RT using the standard fractionation schedule versus the shorter schedule.
- To identify a molecular signature predictive of invasive recurrence of DCIS to facilitate therapy individualization.
- To assess inter-relationship of biomarkers and relationship between biomarker expression and specific histopathologic features of DCIS.
- To evaluate the quality of life of women treated with:
- whole breast RT alone versus whole breast RT plus tumour bed boost;
- RT using the standard fractionation schedule versus the shorter schedule.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Arm 1 (Standard WB Fractionation) | Active comparator | Radiation: Standard WB fractionationWhole Breast RT alone - Standard fractionation schedule (50GY/25 Fractions/35days) |
| Arm 2 (Shorter WB Fractionation) | Experimental | Radiation: Shorter WB fractionationWhole Breast RT alone - Shorter fractionation schedule (42.5 Gy/16 fractions/22 days) |
| Arm 3 (Standard WB fractionation+Boost) | Active comparator | Radiation: Standard WB fractionation+BoostWhole Breast RT + tumor bed boost - Standard fractionation schedule (50 Gy/25 fractions/35 days; Boost 16 Gy/8 fractions/10 days) |
| Arm 4 (Shorter WB fractionation + Boost) | Experimental | Radiation: Shorter WB fractionation + BoostWhole breast RT + tumour bed boost - Shorter fractionation schedule (42.5 Gy/16 fractions/22 days; Boost 16 Gy/8 fractions/10 days) |
Who may qualify
- Ages
- 18 years and older
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (24 listed)
- Women ≥ 18 years.
- Histologically proven DCIS of the breast without an invasive component.
- Bilateral mammograms performed within 6 months prior to randomization.
- Clinically node-negative.
- Treated by breast conserving surgery (primary excision or re-excision) with complete microscopic excision and clear radial margins of ≥1 mm* (*Patients with superficial or deep resection margin of <1 mm are eligible if surgery has removed all of the intervening breast tissue from the subcutaneous tissue to the pectoralis fascia).
Key exclusion criteria (15 listed)
- Patients who fulfill any of the following criteria are not eligible for admission to study:
- Multicentric disease or extensive microcalcifications that could not be completely excised by breast conserving surgery with radial margins of ≥1 mm*.
- Patients with superficial and/or deep margin of <1 mm are eligible if surgery has removed all of the intervening breast tissue from the subcutaneous tissue to the pectoralis fascia.
- Presence of tumour cells in lymph nodes detected using H\&E or immunohistochemical examination (if lymph node biopsy or dissection has been performed).
- Locally recurrent breast cancer.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Standard WB fractionationAlso: RadiationA total dose of 50 Gy in 25 fractions in 2-Gy daily fractions, 5 fractions per week (at least 9 fractions per fortnight). | Radiation | Arm 1 (Standard WB Fractionation) |
| Shorter WB fractionationAlso: RadiationA total dose of 42.5 Gy in 16 fractions in 2.656-Gy daily fractions, 5 fractions per week (at least 9 fractions per fortnight). | Radiation | Arm 2 (Shorter WB Fractionation) |
| Standard WB fractionation+BoostAlso: RadiationWhole Breast: A total dose of 50 Gy in 25 fractions in 2-Gy daily fractions, 5 fractions per week (at least 9 fractions per fortnight). Tumour bed: A total dose of 10 Gy in 5 fractions in 2-Gy daily fractions, 5 fractions per week. | Radiation | Arm 3 (Standard WB fractionation+Boost) |
| Shorter WB fractionation + BoostAlso: RadiationWhole breast: A total dose of 42.5 Gy in 16 fractions in 2.656-Gy daily fractions, 5 fractions per week (at least 9 fractions per fortnight). Tumour bed: A total dose of 10 Gy in 4 fractions in 2.5-Gy daily fractions, 4 fractions per week. | Radiation | Arm 4 (Shorter WB fractionation + Boost) |
Primary outcome
Time to local recurrence, measured from the date of randomization to the date of first evidence of local recurrence.
Time frame: Main analysis after all patients have completed 5 years of follow-up. Updated analysis after 10 years of follow-up.
5 secondary outcomes
Overall survival
Time frame: Measured from the date of randomization to the date of death from any cause. Main analysis of secondary outcomes after all patients have completed 5 years of follow-up. Updated analysis after 10 years of follow-up.
Time to disease recurrence
Time frame: Measured from the date of randomization to the date of first evidence of recurrent disease. Main analysis of secondary outcomes after all patients have completed 5 years of follow-up. Updated analysis after 10 years of follow-up.
Cosmetic Outcome
Time frame: Cosmetic assessment will take place at baseline, 12, 36 and 60 months post RT.
Radiation toxicity
Time frame: Assessed at baseline, last week of RT, 3, 6, and 12 months post RT and then yearly until year 10.
Quality of Life change
Time frame: Assessed at baseline, last week of RT, 6, 12, 24, 60 & 120 months post RT.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Mar 2023.
- Derived from this study: PubMed 35934006Chua BH, Link EK, Kunkler IH, Whelan TJ, Westenberg AH, Gruber G, Bryant G, Ahern V, Purohit K, Graham PH, Akra M, McArdle O, O'Brien P, Harvey JA, Kirkove C, Maduro JH, Campbell ID, Delaney GP, Martin JD, Vu TTT, Muanza TM, Neal A, Olivotto IA; BIG 3-07/TROG 07.01 trial investigators. Radiation doses and fractionation schedules in non-low-risk ductal carcinoma in situ in the breast (BIG 3-07/TROG 07.01): a randomised, factorial, multicentre, open-label, phase 3 study. Lancet. 2022 Aug 6;400(10350):431-440. doi: 10.1016/S0140-6736(22)01246-6.
- Derived from this study: PubMed 32203696King MT, Link EK, Whelan TJ, Olivotto IA, Kunkler I, Westenberg AH, Gruber G, Schofield P, Chua BH; BIG 3-07/TROG 07.01 trial investigators. Quality of life after breast-conserving therapy and adjuvant radiotherapy for non-low-risk ductal carcinoma in situ (BIG 3-07/TROG 07.01): 2-year results of a randomised, controlled, phase 3 trial. Lancet Oncol. 2020 May;21(5):685-698. doi: 10.1016/S1470-2045(20)30085-1. Epub 2020 Mar 20.
- Click here for more information about this study on the TROG official websiteLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Boon Chua study chair
Prince of Wales Hospital Randwick
120 sites in 11 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Standard WB fractionation, Shorter WB fractionation and Standard WB fractionation+Boost in people with Carcinoma, Ductal, Breast, run by Trans Tasman Radiation Oncology Group at 120 sites in 11 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 24 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 22 Mar 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 120 sites in United Kingdom, Australia, Canada, Netherlands, Switzerland and 6 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Time to local recurrence, measured from the date of randomization to the date of first evidence of local recurrence. (time frame: Main analysis after all patients have completed 5 years of follow-up. Updated analysis after 10 years of follow-up.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00470236, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Mar 2023.