Viewing Study NCT00470236



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Last Modification Date: 2024-10-26 @ 9:32 AM
Study NCT ID: NCT00470236
Status: ACTIVE_NOT_RECRUITING
Last Update Posted: 2023-03-22
First Post: 2007-05-03

Brief Title: Radiation Doses and Fractionation Schedules in Non-low Risk Ductal Carcinoma In Situ DCIS of the Breast
Sponsor: Trans Tasman Radiation Oncology Group
Organization: Trans Tasman Radiation Oncology Group

Study Overview

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
Status: ACTIVE_NOT_RECRUITING
Status Verified Date: 2023-03
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: DCIS
Brief 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 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

1 To improve the outcome of women with non-low risk DCIS treated with breast conserving therapy
2 To individualize treatment selection for women with DCIS to achieve long term disease control with minimal toxicity
Detailed Description: Specific objectives

1 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
2 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
3 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
4 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
5 To identify a molecular signature predictive of invasive recurrence of DCIS to facilitate therapy individualization
6 To assess inter-relationship of biomarkers and relationship between biomarker expression and specific histopathologic features of DCIS
7 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 Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None
Secondary IDs
Secondary ID Type Domain Link
NHMRC 454390 OTHER_GRANT None None
BIG 3-07 OTHER None None
NCIC CTG MA33 OTHER None None
BOOG 2009-03 OTHER None None
ICORG 10-06 OTHER None None
EORTC 22085-10083 OTHER None None
IBCSG 38-10 OTHER None None
SCTBG 2009MayPR55 OTHER Collaborative Group None