Breast CancerTARGIT_BQRNCT01440010

TARGeted Intraoperative radioTherapy With INTRABEAM as a Boost for Breast Cancer - A Quality Control Registry

An observational study of Breast Cancer, run by Universitätsmedizin Mannheim at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Trial summary

Quality Control Registry for IORT used as an anticipiated boost with 20 Gy at the applicator surface followed by EBRT Read more about this study

Who is it for?: Ages 18 years and older, women only
Conditions the study is for: Breast Cancer
What is being tested?: IORT with 20 Gy
Type of treatment: Surgery or procedure
How many people: 1,133 participants
Where: 1 siteGermany
Study dates: 1 Sep 2011to 31 Dec 2020
Phase: Observational
Are there results?: Yes, posted in the registrySummary in the doctors' view

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

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.

Who may be able to join

Tumor diameter < 3,5 cm
Informed consent

Who cannot join

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

Trial locations and contacts

1 site in 1 country.

Germany1 site

University Medical Center Mannheim
Mannheim, 68167

Other trials in Germany

About this study

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)

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

Read the 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.

Conditions: Breast Cancer
Being tested: IORT with 20 Gy
Keywords: IORT, Boost, Breast cancer, Local recurrence, Toxicity, LENT SOMA, TARGIT, Quality Control Registry
Medical subject headings: Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

IORT with 20 GyRadiation
Also called Whole breast irradiation
Intraoperative radiotherapy with the INTRABEAM System with 20 Gy

Study groups in NCT01440010
Study group	Role	What they receive
IORT with 50 kV x-rays, 20 Gy		Boost with 20 Gy during BCS, EBRT with 46-50 Gy Receives: Radiation: IORT with 20 Gy

What is being measured

The primary outcome is the main question the study is designed to answer.

Number of Patients With Local Recurrence
The follow-up was carried out every six months for the first two years, and then once a year. The follow-up always included a mammography in addition to a clinical examination. Kaplan-Meier-estimates were done to calculate the local recurrence rate
Measured: 5 years

Secondary outcomes (1)

Percentage of Patients With Chronic Higher Grade Fibrosis After IORT Boost
Follow-up for toxicity assessment (LENT SOMA criteria: fibrosis, teleangiectasia, retraction, pain, breast edema, lymphedema, hyperpigmentation, ulceration) and oncological data took place before surgery, 6 weeks to 90 days after EBRT, 6 months after IORT, and then annually using standardized case report forms (CRFs).
Measured: 84 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

1 Sep 201131 Dec 2020

First posted23 Sep 2011 (estimated)
Study start1 Sep 2011
Primary completion31 Dec 2020
Study completion31 Dec 2020

Resources

Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
Publications (25)Papers the sponsor has linked to this study.
Other trials for Breast CancerStudies 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: Observational
Observational model: Ecologic or community
Time perspective: Prospective
Enrolment: 1,133 participants (actual)

IDs, dates and publications

ClinicalTrials.gov ID: NCT01440010
Sponsor's protocol ID: TARGIT BQR
Acronym: TARGIT_BQR
Status last verified: Dec 2025
First submitted: 22 Sep 2011
Last updated: 12 Dec 2025
Results posted: Yes, on ClinicalTrials.gov
Data monitoring committee: No

Publications

Andersen KG, Gartner R, Kroman N, Flyger H, Kehlet H. Persistent pain after targeted intraoperative radiotherapy (TARGIT) or external breast radiotherapy for breast cancer: a randomized trial. Breast. 2012 Feb;21(1):46-9. doi: 10.1016/j.breast.2011.07.011. Epub 2011 Aug 23.
PubMed 21865044
Sautter-Bihl ML, Sedlmayer F, Budach W, Dunst J, Engenhart-Cabillic R, Fietkau R, Feyer P, Haase W, Harms W, Rodel C, Souchon R, Wenz F, Sauer R. Intraoperative radiotherapy as accelerated partial breast irradiation for early breast cancer : beware of one-stop shops? Strahlenther Onkol. 2010 Dec;186(12):651-7. doi: 10.1007/s00066-010-8001-2.
PubMed 21127826
Vaidya JS, Baum M, Tobias JS, Wenz F, Massarut S, Keshtgar M, Hilaris B, Saunders C, Williams NR, Brew-Graves C, Corica T, Roncadin M, Kraus-Tiefenbacher U, Sutterlin M, Bulsara M, Joseph D. Long-term results of targeted intraoperative radiotherapy (Targit) boost during breast-conserving surgery. Int J Radiat Oncol Biol Phys. 2011 Nov 15;81(4):1091-7. doi: 10.1016/j.ijrobp.2010.07.1996. Epub 2010 Oct 15.
PubMed 20951505
Keshtgar MR, Vaidya JS, Tobias JS, Wenz F, Joseph D, Stacey C, Metaxas MG, Keller A, Corica T, Williams NR, Baum M. Targeted intraoperative radiotherapy for breast cancer in patients in whom external beam radiation is not possible. Int J Radiat Oncol Biol Phys. 2011 May 1;80(1):31-8. doi: 10.1016/j.ijrobp.2010.01.045. Epub 2010 Jun 18.
PubMed 20646864
Vaidya JS, Joseph DJ, Tobias JS, Bulsara M, Wenz F, Saunders C, Alvarado M, Flyger HL, Massarut S, Eiermann W, Keshtgar M, Dewar J, Kraus-Tiefenbacher U, Sutterlin M, Esserman L, Holtveg HM, Roncadin M, Pigorsch S, Metaxas M, Falzon M, Matthews A, Corica T, Williams NR, Baum M. Targeted intraoperative radiotherapy versus whole breast radiotherapy for breast cancer (TARGIT-A trial): an international, prospective, randomised, non-inferiority phase 3 trial. Lancet. 2010 Jul 10;376(9735):91-102. doi: 10.1016/S0140-6736(10)60837-9.
PubMed 20570343
Herskind C, Griebel J, Kraus-Tiefenbacher U, Wenz F. Sphere of equivalence--a novel target volume concept for intraoperative radiotherapy using low-energy X rays. Int J Radiat Oncol Biol Phys. 2008 Dec 1;72(5):1575-81. doi: 10.1016/j.ijrobp.2008.08.009.
PubMed 19028280
Belletti B, Vaidya JS, D'Andrea S, Entschladen F, Roncadin M, Lovat F, Berton S, Perin T, Candiani E, Reccanello S, Veronesi A, Canzonieri V, Trovo MG, Zaenker KS, Colombatti A, Baldassarre G, Massarut S. Targeted intraoperative radiotherapy impairs the stimulation of breast cancer cell proliferation and invasion caused by surgical wounding. Clin Cancer Res. 2008 Mar 1;14(5):1325-32. doi: 10.1158/1078-0432.CCR-07-4453.
PubMed 18316551
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.
PubMed 20853059
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.
PubMed 21683889
Wasser K, Ruch M, Brade J, Schoeber C, Kraus-Tiefenbacher U, Schnitzer A, Engel D, Wenz F, Sutterlin M, Schoenberg SO, Buesing KA. Do structural changes in the tumour bed after intraoperative radiotherapy (IORT) of breast cancer complicate the evaluation of mammograms in a long-term follow-up? Eur J Radiol. 2012 Mar;81(3):e255-9. doi: 10.1016/j.ejrad.2011.02.016. Epub 2011 Mar 4.
PubMed 21376493
Blank E, Kraus-Tiefenbacher U, Welzel G, Keller A, Bohrer M, Sutterlin M, Wenz F. Single-center long-term follow-up after intraoperative radiotherapy as a boost during breast-conserving surgery using low-kilovoltage x-rays. Ann Surg Oncol. 2010 Oct;17 Suppl 3:352-8. doi: 10.1245/s10434-010-1265-z. Epub 2010 Sep 19.
PubMed 20853058
Herskind C, Wenz F. Radiobiological comparison of hypofractionated accelerated partial-breast irradiation (APBI) and single-dose intraoperative radiotherapy (IORT) with 50-kV X-rays. Strahlenther Onkol. 2010 Aug;186(8):444-51. doi: 10.1007/s00066-010-2147-9. Epub 2010 Jul 29.
PubMed 20803285
Wenz F, Welzel G, Blank E, Hermann B, Steil V, Sutterlin M, Kraus-Tiefenbacher U. Intraoperative radiotherapy as a boost during breast-conserving surgery using low-kilovoltage X-rays: the first 5 years of experience with a novel approach. Int J Radiat Oncol Biol Phys. 2010 Aug 1;77(5):1309-14. doi: 10.1016/j.ijrobp.2009.06.085. Epub 2010 Jan 25.
PubMed 20100643
Ruch M, Brade J, Schoeber C, Kraus-Tiefenbacher U, Schnitzer A, Engel D, Wenz F, Sutterlin M, Schoenberg SO, Wasser K. Long-term follow-up-findings in mammography and ultrasound after intraoperative radiotherapy (IORT) for breast cancer. Breast. 2009 Oct;18(5):327-34. doi: 10.1016/j.breast.2009.09.010.
PubMed 19909898
Kraus-Tiefenbacher U, Welzel G, Brade J, Hermann B, Siebenlist K, Wasser KS, Schneider FS, Sutterlin M, Wenz F. Postoperative seroma formation after intraoperative radiotherapy using low-kilovoltage X-rays given during breast-conserving surgery. Int J Radiat Oncol Biol Phys. 2010 Jul 15;77(4):1140-5. doi: 10.1016/j.ijrobp.2009.06.008. Epub 2009 Oct 14.
PubMed 19836152

Want to know more?

The sponsor has not listed a contact. The official record may have more details.

Talk to your doctor first and take this page with you. Only the study team can confirm whether you can join.

Questions to ask the study team

What is the study trying to find out?
What would I need to do, and how often would I visit?
Could I receive a placebo instead of the treatment?
What are the possible risks and benefits for me?
Will it cost me anything? Are travel or time paid for?
Can I keep seeing my own doctor during the study?
What happens when the study ends?

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Study at a glance

From the registry record, last updated by the sponsor on 12 Dec 2025. Recruitment status is as the sponsor reported it: confirm with the study team.

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)
ClinicalTrials.gov ID: NCT01440010
Acronym / sponsor ID: TARGIT_BQR / TARGIT BQR
Conditions: Breast Cancer
Keywords: IORT, Boost, Breast cancer, Local recurrence, Toxicity, LENT SOMA, TARGIT, Quality Control Registry
Study type: Observational
Recruitment status: Completed
Enrolment: 1,133 participants (actual)
Lead sponsor: Universitätsmedizin MannheimUniversity, hospital or other
Study start: 1 Sep 2011 (actual)
Primary completion: 31 Dec 2020 (actual)
Study completion: 31 Dec 2020 (actual)
First posted: 23 Sep 2011 (estimated)
Results: Posted 12 Dec 2025

Clinical summary

The research question as the sponsor registered it. This describes what the study plans to test, not what it found.

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

Detailed description

Study design

Observational model: Ecologic or community
Time perspective: Prospective
Number of arms: 1

Arm	Type	Receives
IORT with 50 kV x-rays, 20 Gy	–	Radiation: IORT with 20 GyBoost with 20 Gy during BCS, EBRT with 46-50 Gy

Who may qualify

Ages: 18 years and older
Sex: Female only
Healthy volunteers: Not accepted
Age groups: Adult, Older adult
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.

Key inclusion criteria (2 listed)

Tumor diameter < 3,5 cm
Informed consent

Key exclusion criteria (3 listed)

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

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
IORT with 20 GyAlso: Whole breast irradiationIntraoperative radiotherapy with the INTRABEAM System with 20 Gy	Radiation	IORT with 50 kV x-rays, 20 Gy

Primary outcome

Number of Patients With Local Recurrence
Time frame: 5 years
The follow-up was carried out every six months for the first two years, and then once a year. The follow-up always included a mammography in addition to a clinical examination. Kaplan-Meier-estimates were done to calculate the local recurrence rate

1 secondary outcome

Percentage of Patients With Chronic Higher Grade Fibrosis After IORT Boost
Time frame: 84 months

Results and safety

Results posted to the registry on 12 Dec 2025, as reported by the sponsor. Figures are copied from the record, not re-analysed. Full results on ClinicalTrials.gov.

Participant flow

Group	Started	Completed
IORT With 50 kV X-rays, 20 Gy	1,133	902

Primary outcome: Number of Patients With Local Recurrence

Time frame: 5 years. Number. Unit: participants

Measure	IORT Boost n = 902
Value	10

Population analysed: Planned IORT Boost plus whole breast irradiation

1 secondary outcome is reported in the full results.

Adverse events

Time frame: 5 years. Other adverse events reported at 4% frequency or more

Group	Serious adverse events	Other adverse events	Deaths
IORT Boost With 20 Gy and Standard Whole Breast Irradition	0 of 902 (0%)	83 of 902 (9.2%)	16 of 902

Limitations and caveats (from the sponsor): 902 patients were available for any analysis. Be aware that 8 patients with both sided cancers were included. So there were 910 affected breasts in 902 patients.

Loading the posted results from ClinicalTrials.gov…

Research links

Official record on ClinicalTrials.govLast updated by the sponsor 12 Dec 2025.
Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
Background: PubMed 21865044Andersen KG, Gartner R, Kroman N, Flyger H, Kehlet H. Persistent pain after targeted intraoperative radiotherapy (TARGIT) or external breast radiotherapy for breast cancer: a randomized trial. Breast. 2012 Feb;21(1):46-9. doi: 10.1016/j.breast.2011.07.011. Epub 2011 Aug 23.
Background: PubMed 21127826Sautter-Bihl ML, Sedlmayer F, Budach W, Dunst J, Engenhart-Cabillic R, Fietkau R, Feyer P, Haase W, Harms W, Rodel C, Souchon R, Wenz F, Sauer R. Intraoperative radiotherapy as accelerated partial breast irradiation for early breast cancer : beware of one-stop shops? Strahlenther Onkol. 2010 Dec;186(12):651-7. doi: 10.1007/s00066-010-8001-2.
Background: PubMed 20951505Vaidya JS, Baum M, Tobias JS, Wenz F, Massarut S, Keshtgar M, Hilaris B, Saunders C, Williams NR, Brew-Graves C, Corica T, Roncadin M, Kraus-Tiefenbacher U, Sutterlin M, Bulsara M, Joseph D. Long-term results of targeted intraoperative radiotherapy (Targit) boost during breast-conserving surgery. Int J Radiat Oncol Biol Phys. 2011 Nov 15;81(4):1091-7. doi: 10.1016/j.ijrobp.2010.07.1996. Epub 2010 Oct 15.
Background: PubMed 20646864Keshtgar MR, Vaidya JS, Tobias JS, Wenz F, Joseph D, Stacey C, Metaxas MG, Keller A, Corica T, Williams NR, Baum M. Targeted intraoperative radiotherapy for breast cancer in patients in whom external beam radiation is not possible. Int J Radiat Oncol Biol Phys. 2011 May 1;80(1):31-8. doi: 10.1016/j.ijrobp.2010.01.045. Epub 2010 Jun 18.
Background: PubMed 20570343Vaidya JS, Joseph DJ, Tobias JS, Bulsara M, Wenz F, Saunders C, Alvarado M, Flyger HL, Massarut S, Eiermann W, Keshtgar M, Dewar J, Kraus-Tiefenbacher U, Sutterlin M, Esserman L, Holtveg HM, Roncadin M, Pigorsch S, Metaxas M, Falzon M, Matthews A, Corica T, Williams NR, Baum M. Targeted intraoperative radiotherapy versus whole breast radiotherapy for breast cancer (TARGIT-A trial): an international, prospective, randomised, non-inferiority phase 3 trial. Lancet. 2010 Jul 10;376(9735):91-102. doi: 10.1016/S0140-6736(10)60837-9.
Background: PubMed 19028280Herskind C, Griebel J, Kraus-Tiefenbacher U, Wenz F. Sphere of equivalence--a novel target volume concept for intraoperative radiotherapy using low-energy X rays. Int J Radiat Oncol Biol Phys. 2008 Dec 1;72(5):1575-81. doi: 10.1016/j.ijrobp.2008.08.009.
Background: PubMed 18316551Belletti B, Vaidya JS, D'Andrea S, Entschladen F, Roncadin M, Lovat F, Berton S, Perin T, Candiani E, Reccanello S, Veronesi A, Canzonieri V, Trovo MG, Zaenker KS, Colombatti A, Baldassarre G, Massarut S. Targeted intraoperative radiotherapy impairs the stimulation of breast cancer cell proliferation and invasion caused by surgical wounding. Clin Cancer Res. 2008 Mar 1;14(5):1325-32. doi: 10.1158/1078-0432.CCR-07-4453.
Background: PubMed 20853059Welzel 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.
Background: PubMed 21683889Kraus-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.
Background: PubMed 21376493Wasser K, Ruch M, Brade J, Schoeber C, Kraus-Tiefenbacher U, Schnitzer A, Engel D, Wenz F, Sutterlin M, Schoenberg SO, Buesing KA. Do structural changes in the tumour bed after intraoperative radiotherapy (IORT) of breast cancer complicate the evaluation of mammograms in a long-term follow-up? Eur J Radiol. 2012 Mar;81(3):e255-9. doi: 10.1016/j.ejrad.2011.02.016. Epub 2011 Mar 4.
Background: PubMed 20853058Blank E, Kraus-Tiefenbacher U, Welzel G, Keller A, Bohrer M, Sutterlin M, Wenz F. Single-center long-term follow-up after intraoperative radiotherapy as a boost during breast-conserving surgery using low-kilovoltage x-rays. Ann Surg Oncol. 2010 Oct;17 Suppl 3:352-8. doi: 10.1245/s10434-010-1265-z. Epub 2010 Sep 19.
Background: PubMed 20803285Herskind C, Wenz F. Radiobiological comparison of hypofractionated accelerated partial-breast irradiation (APBI) and single-dose intraoperative radiotherapy (IORT) with 50-kV X-rays. Strahlenther Onkol. 2010 Aug;186(8):444-51. doi: 10.1007/s00066-010-2147-9. Epub 2010 Jul 29.

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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.

Elena Sperk, MD principal investigator

Universitätsmedizin Mannheim

1 site in 1 country: see every site and its status.

Questions about this trial

What is this clinical trial studying?

An observational study of Breast Cancer, run by Universitätsmedizin Mannheim at 1 site in Germany.

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 2 inclusion and 3 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: finished, as of the sponsor's last update on 12 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. 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?

Yes. Results are posted in the registry (first posted 12 Dec 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Number of Patients With Local Recurrence (time frame: 5 years). 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 NCT01440010, which also lists 25 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 12 Dec 2025.