Clinical trial NCT01440010: TARGeted Intraoperative radioTherapy With INTRABEAM as a Boost for Breast Cancer - A Quality Control Registry
Official title: TARGeted Intraoperative radioTherapy With the INTRABEAM-System as an Advanced Boost in Patients With Breast Cancer - A Quality Control Registry in Germany (TARGIT BQR)
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Breast Cancer
Keywords: IORT
Boost
Breast cancer
Local recurrence
Toxicity
LENT SOMA
TARGIT
Quality Control Registry
Lead sponsor: Universitätsmedizin Mannheim
Sponsor class: OTHER
First posted: 2011-09-23
Enrollment: 1135
Sex: FEMALE
Minimum age (years): 18
Maximum age (years): 85
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: ECOLOGIC_OR_COMMUNITY
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: All patients with breast cancer and a tumor diameter \< 3,5 cm plannend for breast conserving surgery. Intraoperative radiotherapy (IORT) is applied as an advanced boost with 20 Gy at the applicator surface during surgery. Its feasibility was already shown. IORT as a boost is considered as one of several boost techniques in the S3-Leitlinie (national guideline) for breast cancer.

Brief summary: Quality Control Registry for IORT used as an anticipiated boost with 20 Gy at the applicator surface followed by EBRT

Detailed description: Quality Control Registry of a standard treatment with intraoperative radiotherapy during breast conserving surgery with 20 Gy at the applicator surface as an advanced boost followed by a shortened external beam radiotherapy. This is a prospective phase IV study to evaluate real life data of IORT Boost. Study runs in Germany with 13 active centers recruiting. Due to the nature of the study (registry) there is no need for randomization. Inclusion of n = \>1000 patients is planned.

Eligibility criteria: Inclusion Criteria:

* Tumor diameter \< 3,5 cm
* Informed consent

Exclusion Criteria:

* No informed consent
* Tumor size \> 3,5 cm
* No indication for a boost

Primary outcomes:
measure: Local recurrence rate
timeFrame: 5 years
Secondary outcomes:
measure: Toxicity, Overall survival
timeFrame: 5 years
Other outcomes:
Locations:
city: Mannheim
country: Germany
facility: University Medical Center Mannheim
Study officials:
affiliation: Universitätsmedizin Mannheim
name: Elena Sperk, MD
role: PRINCIPAL_INVESTIGATOR
References:
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citation: Welzel G, Hofmann F, Blank E, Kraus-Tiefenbacher U, Hermann B, Sutterlin M, Wenz F. Health-related quality of life after breast-conserving surgery and intraoperative radiotherapy for breast cancer using low-kilovoltage X-rays. Ann Surg Oncol. 2010 Oct;17 Suppl 3:359-67. doi: 10.1245/s10434-010-1257-z. Epub 2010 Sep 19.
citation: Kraus-Tiefenbacher U, Blank E, Wenz F. Intraoperative radiotherapy during a second breast-conserving procedure for relapsed breast cancer after previous external beam radiotherapy. Int J Radiat Oncol Biol Phys. 2011 Jul 15;80(4):1279-80. doi: 10.1016/j.ijrobp.2011.02.038. No abstract available.
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citation: Wenz F, Welzel G, Keller A, Blank E, Vorodi F, Herskind C, Tome O, Sutterlin M, Kraus-Tiefenbacher U. Early initiation of external beam radiotherapy (EBRT) may increase the risk of long-term toxicity in patients undergoing intraoperative radiotherapy (IORT) as a boost for breast cancer. Breast. 2008 Dec;17(6):617-22. doi: 10.1016/j.breast.2008.05.009. Epub 2008 Jul 22.
citation: Kraus-Tiefenbacher U, Bauer L, Scheda A, Schoeber C, Schaefer J, Steil V, Wenz F. Intraoperative radiotherapy (IORT) is an option for patients with localized breast recurrences after previous external-beam radiotherapy. BMC Cancer. 2007 Sep 14;7:178. doi: 10.1186/1471-2407-7-178.
citation: Wasser K, Schoeber C, Kraus-Tiefenbacher U, Bauer L, Brade J, Teubner J, Wenz F, Neff W. Early mammographic and sonographic findings after intraoperative radiotherapy (IORT) as a boost in patients with breast cancer. Eur Radiol. 2007 Jul;17(7):1865-74. doi: 10.1007/s00330-006-0556-z. Epub 2007 Jan 20.
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