CC BY-NC-ND 4.0 · Geburtshilfe Frauenheilkd 2018; 78(11): 1056-1088
DOI: 10.1055/a-0646-4630
GebFra Science
Guideline/Leitlinie
Georg Thieme Verlag KG Stuttgart · New York

Interdisciplinary Screening, Diagnosis, Therapy and Follow-up of Breast Cancer. Guideline of the DGGG and the DKG (S3-Level, AWMF Registry Number 032/045OL, December 2017) – Part 2 with Recommendations for the Therapy of Primary, Recurrent and Advanced Breast Cancer

Article in several languages: English | deutsch
Achim Wöckel
1   Universitätsfrauenklinik Würzburg, Universität Würzburg, Würzburg, Germany
,
Jasmin Festl
1   Universitätsfrauenklinik Würzburg, Universität Würzburg, Würzburg, Germany
,
Tanja Stüber
1   Universitätsfrauenklinik Würzburg, Universität Würzburg, Würzburg, Germany
,
Katharina Brust
1   Universitätsfrauenklinik Würzburg, Universität Würzburg, Würzburg, Germany
,
Mathias Krockenberger
1   Universitätsfrauenklinik Würzburg, Universität Würzburg, Würzburg, Germany
,
Peter U. Heuschmann
2   Institut für Klinische Epidemiologie und Biometrie (IKE-B), Universität Würzburg, Würzburg, Germany
,
Steffi Jírů-Hillmann
2   Institut für Klinische Epidemiologie und Biometrie (IKE-B), Universität Würzburg, Würzburg, Germany
,
Ute-Susann Albert
3   AWMF-Institut für Medizinisches Wissensmanagement, Marburg, Germany
,
Wilfried Budach
4   Klinik für Strahlentherapie und Radioonkologie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
,
Markus Follmann
5   Office des Leitlinienprogrammes Onkologie, Berlin, Germany
,
Wolfgang Janni
6   Universitätsfrauenklinik Ulm, Ulm, Germany
,
Ina Kopp
3   AWMF-Institut für Medizinisches Wissensmanagement, Marburg, Germany
,
Rolf Kreienberg
6   Universitätsfrauenklinik Ulm, Ulm, Germany
,
Thorsten Kühn
7   Frauenklinik, Klinikum Esslingen, Esslingen, Germany
,
Thomas Langer
5   Office des Leitlinienprogrammes Onkologie, Berlin, Germany
,
Monika Nothacker
3   AWMF-Institut für Medizinisches Wissensmanagement, Marburg, Germany
,
Anton Scharl
8   Frauenklinik, Klinikum St. Marien Amberg, Amberg, Germany
,
Ingrid Schreer
9   Diagnostische Radiologie, Hamburg-Eimsbüttel, Germany
,
Hartmut Link
10   Praxis für Hämatologie und Onkologie, Kaiserslautern, Germany
,
Jutta Engel
11   Tumorregister München, Institut für medizinische Informationsverarbeitung, Biometrie und Epidemiologie, Ludwig-Maximilians-Universität München, München, Germany
,
Tanja Fehm
12   Universitätsfrauenklinik Düsseldorf, Düsseldorf, Germany
,
Joachim Weis
13   Stiftungsprofessur Selbsthilfeforschung, Tumorzentrum/CCC Freiburg, Universitätsklinikum Freiburg, Freiburg, Germany
,
Anja Welt
14   Innere Klinik (Tumorforschung), Westdeutsches Tumorzentrum, Universitätsklinikum Essen, Essen, Germany
,
Anke Steckelberg
15   Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
,
Petra Feyer
16   Klinik für Strahlentherapie und Radioonkologie, Vivantes Klinikum, Neukölln Berlin, Germany
,
Klaus König
17   Berufsverband der Frauenärzte, Steinbach, Germany
,
Andrea Hahne
18   BRCA-Netzwerk, Bonn, Germany
,
Traudl Baumgartner
18   BRCA-Netzwerk, Bonn, Germany
,
Hans H. Kreipe
19   Institut für Pathologie, Medizinische Hochschule Hannover, Hannover, Germany
,
Wolfram Trudo Knoefel
20   Klinik für Allgemein-, Viszeral- und Kinderchirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
,
Michael Denkinger
21   AGAPLESION Bethesda Klinik, Geriatrie der Universität Ulm, Ulm, Germany
,
Sara Brucker
22   Universitätsfrauenklinik Tübingen, Tübingen, Germany
,
Diana Lüftner
23   Medizinische Klinik mit Schwerpunkt Hämatologie, Onkologie und Tumorimmunologie, Campus Benjamin Franklin, Universitätsklinikum Charité, Berlin, Germany
,
Christian Kubisch
24   Institut für Humangenetik, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
,
Christina Gerlach
25   III. Medizinische Klinik und Poliklinik, uct, Interdisziplinäre Abteilung für Palliativmedizin, Universitätsmedizin der Johannes Gutenberg Universität, Mainz, Germany
,
Annette Lebeau
26   Institut für Pathologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
,
Friederike Siedentopf
27   Brustzentrum, Martin-Luther-Krankenhaus, Berlin, Germany
,
Cordula Petersen
28   Klinik für Strahlentherapie und Radioonkologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
,
Hans Helge Bartsch
29   Klinik für Tumorbiologie an der Universität Freiburg, Freiburg, Germany
,
Rüdiger Schulz-Wendtland
30   Radiologisches Institut, Universitätsklinikum Erlangen, Erlangen, Germany
,
Markus Hahn
22   Universitätsfrauenklinik Tübingen, Tübingen, Germany
,
Volker Hanf
31   Frauenklinik Nathanstift, Klinikum Fürth, Fürth, Germany
,
Markus Müller-Schimpfle
32   Klinik für Radiologie und Nuklearmedizin, Klinikum Frankfurt Höchst, Frankfurt, Germany
,
Ulla Henscher
33   Physiotherapie, Hannover, Germany
,
Renza Roncarati
34   Frauenselbsthilfe nach Krebs – Bundesverband e. V., Bonn, Germany
,
Alexander Katalinic
35   Institut für Sozialmedizin und Epidemiologie, Universitätsklinikum Schleswig-Holstein, Lübeck, Germany
,
Christoph Heitmann
36   Ästhetisch plastische und rekonstruktive Chirurgie, Camparihaus München, München, Germany
,
Christoph Honegger
37   Gynäkologie und Geburtshilfe, Zuger Kantonsspital, Baar, Switzerland
,
Kerstin Paradies
38   Konferenz Onkologischer Kranken- und Kinderkrankenpflege, Hamburg, Germany
,
Vesna Bjelic-Radisic
39   Universitätsfrauenklinik, Abteilung für Gynäkologie, Medizinische Universität Graz, Graz, Austria
,
Friedrich Degenhardt
40   Klinik für Frauenheilkunde und Geburtshilfe, Medizinische Hochschule Hannover, Hannover, Germany
,
Frederik Wenz
41   Klinik für Strahlentherapie und Radioonkologie, Universitätsklinikum Mannheim, Mannheim, Germany
,
Oliver Rick
42   Klinik Reinhardshöhe Bad Wildungen, Bad Wildungen, Germany
,
Dieter Hölzel
11   Tumorregister München, Institut für medizinische Informationsverarbeitung, Biometrie und Epidemiologie, Ludwig-Maximilians-Universität München, München, Germany
,
Matthias Zaiss
43   Praxis für interdisziplinäre Onkologie & Hämatologie, Freiburg, Germany
,
Gudrun Kemper
44   Arbeitskreis Frauengesundheit, Berlin, Germany
,
Volker Budach
45   Klinik für Radioonkologie und Strahlentherapie, Charité – Universitätsmedizin Berlin, Berlin, Germany
,
Carsten Denkert
46   Institut für Pathologie, Charité – Universitätsmedizin Berlin, Berlin, Germany
,
Bernd Gerber
47   Universitätsfrauenklinik am Klinikum Südstadt, Rostock, Germany
,
Hans Tesch
48   Centrum für Hämatologie und Onkologie Bethanien, Frankfurt, Germany
,
Susanne Hirsmüller
49   Hospiz am Evangelischen Krankenhaus Düsseldorf, Düsseldorf, Germany
,
Hans-Peter Sinn
50   Pathologisches Institut, Universität Heidelberg, Heidelberg, Germany
,
Jürgen Dunst
51   Klinik für Strahlentherapie, Universitätsklinikum Schleswig-Holstein, Kiel, Germany
,
Karsten Münstedt
52   Frauenklinik Offenburg, Ortenau Klinikum Offenburg-Gengenbach, Offenburg, Germany
,
Ulrich Bick
53   Klinik für Radiologie, Charité – Universitätsmedizin Berlin, Berlin, Germany
,
Eva Fallenberg
53   Klinik für Radiologie, Charité – Universitätsmedizin Berlin, Berlin, Germany
,
Reina Tholen
54   Deutscher Verband für Physiotherapie, Referat Bildung und Wissenschaft, Köln, Germany
,
Roswita Hung
55   Frauenselbsthilfe nach Krebs, Wolfsburg, Germany
,
Freerk Baumann
56   Centrum für Integrierte Onkologie Köln, Uniklinik Köln, Köln, Germany
,
Matthias W. Beckmann
57   Frauenklinik, Universitätsklinikum Erlangen, CCC Erlangen-EMN, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
,
Jens Blohmer
58   Klinik für Gynäkologie incl. Brustzentrum, Charité – Universitätsmedizin Berlin, Berlin, Germany
,
Peter Fasching
57   Frauenklinik, Universitätsklinikum Erlangen, CCC Erlangen-EMN, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
,
Michael P. Lux
57   Frauenklinik, Universitätsklinikum Erlangen, CCC Erlangen-EMN, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
,
Nadia Harbeck
59   Brustzentrum, Frauenklinik, Universität München (LMU), München, Germany
,
Peyman Hadji
60   Klinik für Gynäkologie und Geburtshilfe, Krankenhaus Nordwest, Frankfurt, Germany
,
Hans Hauner
61   Lehrstuhl für Ernährungsmedizin, Klinikum rechts der Isar, Technische Universität München, München, Germany
,
Sylvia Heywang-Köbrunner
62   Referenzzentrum Mammographie München, München, Germany
,
Jens Huober
6   Universitätsfrauenklinik Ulm, Ulm, Germany
,
Jutta Hübner
63   Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany
,
Christian Jackisch
64   Klinik für Gynäkologie und Geburtshilfe, Sana Klinikum Offenbach, Offenbach, Germany
,
Sibylle Loibl
65   German Breast Group, Neu-Isenburg, Germany
,
Hans-Jürgen Lück
66   Gynäkologisch-onkologische Praxis, Hannover, Germany
,
Gunter von Minckwitz
65   German Breast Group, Neu-Isenburg, Germany
,
Volker Möbus
67   Klinik für Gynäkologie und Geburtshilfe, Klinikum Frankfurt Höchst, Frankfurt, Germany
,
Volkmar Müller
68   Klinik und Poliklinik für Gynäkologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
,
Ute Nöthlings
69   Institut für Ernährungs- und Lebensmittelwissenschaften, Rheinische Friedrich-Wilhelms Universität Bonn, Bonn, Germany
,
Marcus Schmidt
70   Klinik und Poliklinik für Geburtshilfe und Frauengesundheit, Universitätsmedizin der Johannes Gutenberg-Universität Mai, Germany nz, Mainz
,
Rita Schmutzler
71   Zentrum Familiärer Brust- und Eierstockkrebs, Universitätsklinikum Köln, Köln, Germany
,
Andreas Schneeweiss
72   Nationales Centrum für Tumorerkrankungen, Universitätsklinikum Heidelberg, Heidelberg, Germany
,
Florian Schütz
72   Nationales Centrum für Tumorerkrankungen, Universitätsklinikum Heidelberg, Heidelberg, Germany
,
Elmar Stickeler
73   Klinik für Gynäkologie und Geburtsmedizin, Uniklinik RWTH Aachen, Aachen, Germany
,
Christoph Thomssen
74   Universitätsfrauenklinik Halle (Saale), Halle (Saale), Germany
,
Michael Untch
75   Klinik für Geburtshilfe und Gynäkologie, Helios Klinikum Berlin-Buch, Berlin, Germany
,
Simone Wesselmann
76   Deutsche Krebsgesellschaft, Berlin, Germany
,
Arno Bücker
77   Klinik für Diagnostische und Interventionelle Radiologie am UKS, Universität des Saarlandes, Homburg, Germany
,
Andreas Buck
78   Nuklearmedizinische Klinik und Poliklinik des Universitätsklinikums Würzburg, Würzburg, Germany
,
Stephanie Stangl
2   Institut für Klinische Epidemiologie und Biometrie (IKE-B), Universität Würzburg, Würzburg, Germany
› Author Affiliations
Further Information

Correspondence/Korrespondenzadresse

Prof. Dr. med. Achim Wöckel
Frauenklinik und Poliklinik
Universitätsklinikum Würzburg
Josef-Schneider-Straße 4
97080 Würzburg
Germany   

Publication History

received 19 June 2018

accepted 20 June 2018

Publication Date:
26 November 2018 (online)

 

Abstract

Purpose The aim of this official guideline coordinated and published by the German Society for Gynecology and Obstetrics (DGGG) and the German Cancer Society (DKG) was to optimize the screening, diagnosis, therapy and follow-up care of breast cancer.

Method The process of updating the S3 guideline published in 2012 was based on the adaptation of identified source guidelines. They were combined with reviews of evidence compiled using PICO (Patients/Interventions/Control/Outcome) questions and with the results of a systematic search of literature databases followed by the selection and evaluation of the identified literature. The interdisciplinary working groups took the identified materials as their starting point and used them to develop suggestions for recommendations and statements, which were then modified and graded in a structured consensus process procedure.

Recommendations Part 2 of this short version of the guideline presents recommendations for the therapy of primary, recurrent and metastatic breast cancer. Loco-regional therapies are de-escalated in the current guideline. In addition to reducing the safety margins for surgical procedures, the guideline also recommends reducing the radicality of axillary surgery. The choice and extent of systemic therapy depends on the respective tumor biology. New substances are becoming available, particularly to treat metastatic breast cancer.


#

I  Guideline Information

Guidelines program of the DGGG, OEGGG and SGGG

Information on the guidelines program is available at the end of the guideline.


#

Citation format

Interdisciplinary Screening, Diagnosis, Therapy and Follow-up of Breast Cancer. Guideline of the DGGG and the DKG (S3-Level, AWMF Registry Number 032/045OL, December 2017) – Part 2 with Recommendations for the Therapy of Primary, Recurrent and Advanced Breast Cancer. Geburtsh Frauenheilk 2018; 78: 1056–1088


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Guideline documents

The complete long version together with a summary of the conflicts of interest of all the authors and a short version of the guideline are available in German on the AWMF homepage under: http://www.awmf.org/leitlinien/detail/ll/032-045OL.html or www.leitlinienprogramm-onkologie.de


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Guideline authors

The German Society for Gynecology and Obstetrics (DGGG), working together with the German Cancer Society (DKG), was the lead professional organization behind this guideline. The updated guideline presented here was supported by German Cancer Aid in the context of their oncology guidelines program (OL program). The working groups for this guideline consisted of members of the guideline steering group ([Table 1]), specialists nominated by participating professional societies and organizations ([Table 2]), and experts invited to participate by the steering committee ([Table 3]), and they are the authors of this guideline. Only mandate holders nominated by participating professional societies and organizations were eligible to vote on a chapter-by-chapter basis during the voting process (consensus process) after they had disclosed and excluded any conflicts of interest. The guideline was compiled with the direct participation of four patient representatives.

Table 1 Steering committee.

Name

City

1

Prof. Dr. Ute-Susann Albert

Marburg

2

Prof. Dr. Wilfried Budach

Düsseldorf

3

Dr. Markus Follmann, MPH, MSc

Berlin

4

Prof. Dr. Wolfgang Janni

Ulm

5

Prof. Dr. Ina Kopp

Marburg

6

Prof. Dr. Rolf Kreienberg

Landshut

7

PD Dr. Mathias Krockenberger

Würzburg

8

Prof. Dr. Thorsten Kühn

Esslingen

9

Dipl.-Soz. Wiss. Thomas Langer

Berlin

10

Dr. Monika Nothacker

Marburg

11

Prof. Dr. Anton Scharl

Amberg

12

Prof. Dr. Ingrid Schreer

Hamburg-Eimsbüttel

13

Prof. Dr. Achim Wöckel (Leitlinienkoordination)

Würzburg

Methodological consulting: Prof. Dr. P. U. Heuschmann, University of Würzburg

Table 2 Participating professional societies and organizations.

Professional societies

1st mandate holder

2nd mandate holder (deputy)

Radiological Oncology Working Group [AG Radiologische Onkologie (ARO)]

Prof. Dr. Wilfried Budach, Düsseldorf

Prof. Dr. Frederik Wenz, Mannheim

Supportive Measures in Oncology, Rehabilitation and Social Medicine Working Group [AG Supportive Maßnahmen in der Onkologie, Rehabilitation und Sozialmedizin (ASORS)]

Prof. Dr. Hartmut Link, Kaiserslautern

Prof. Dr. Oliver Rick, Bad Wildungen

Association of German Tumor Centers [Arbeitsgemeinschaft Deutscher Tumorzentren e. V. (ADT)]

Prof. Dr. Jutta Engel, Munich

Prof. Dr. Dieter Hölzel, Munich

German Society of Gynecological Oncology [Arbeitsgemeinschaft für gynäkologische Onkologie (AGO)]

Prof. Dr. Tanja Fehm, Düsseldorf

Prof. Dr. Anton Scharl, Amberg

Prevention and Integrative Oncology Working Group [AG Prävention und Integrative Onkologie (PRiO)]

Prof. Dr. Volker Hanf, Fürth

Prof. Dr. Karsten Münstedt, Offenburg

Psycho-oncology Working Group of the German Cancer Society [Arbeitsgemeinschaft für Psychoonkologie in der Deutschen Krebsgesellschaft e. V. (PSO)]

Prof. Dr. Joachim Weis, Freiburg

Internal Oncology Working Group [Arbeitsgemeinschaft Internistische Onkologie (AIO)]

Dr. Anja Welt, Essen

Dr. Matthias Zaiss, Freiburg

Womenʼs Health Work Group [Arbeitskreis Frauengesundheit (AKF)]

Prof. Dr. Anke Steckelberg, Halle

Gudrun Kemper, Berlin

Professional Association of German Radiation Therapists [Berufsverband Deutscher Strahlentherapeuten e. V. (BVDST)]

Prof. Dr. Petra Feyer, Berlin

Prof. Dr. Volker Budach, Berlin

Professional Association of German Gynecologists [Berufsverband für Frauenärzte e. V.]

Dr. Klaus König, Steinbach

BRCA Network [BRCA-Netzwerk e. V.]

Andrea Hahne, Bonn

Traudl Baumgartner, Bonn

German Society for Pathology [Deutsche Gesellschaft für Pathologie]

Prof. Dr. Hans H. Kreipe, Hanover

Prof. Dr. Carsten Denkert, Berlin

Surgical Oncology Working Group [Chirurgische AG für Onkologie (CAO-V)]

Prof. Dr. Wolfram Trudo Knoefel, Düsseldorf

German Society of Geriatrics [Deutsche Gesellschaft für Geriatrie (DGG)]

Prof. Dr. Michael Denkinger, Ulm

German Society of Gynecology and Obstetrics [Deutsche Gesellschaft für Gynäkologie und Geburtshilfe (DGGG)]

Prof. Dr. Sara Brucker, Tübingen

Prof. Dr. Bernd Gerber, Rostock

German Society of Hematology and Oncology [Deutsche Gesellschaft für Hämatologie und Onkologie (DGHO)]

Prof. Dr. Diana Lüftner, Berlin

Prof. Dr. Hans Tesch, Frankfurt

German Society of Nuclear Medicine [Deutsche Gesellschaft für Nuklearmedizin (DGN)]

Prof. Dr. Andreas Buck

German Society of Human Genetics [Deutsche Gesellschaft für Humangenetik e. V. (GfH)]

Prof. Dr. Christian Kubisch, Hamburg

German Society for Palliative Medicine [Deutsche Gesellschaft für Palliativmedizin (DGP)]

Dr. Christina Gerlach, MSc, Mainz

Dr. Susanne Hirsmüller, MSc, Düsseldorf

Professional Association of German Pathologists [Bundesverband Deutscher Pathologen e. V.]

Prof. Dr. Annette Lebeau, Hamburg

Prof. Dr. Hans-Peter Sinn, Heidelberg

German Society of Psychosomatic Obstetrics and Gynecology [Deutsche Gesellschaft für psychosomatische Frauenheilkunde und Geburtshilfe (DGPFG)]

PD Dr. Friederike Siedentopf, Berlin

German Society for Radiation Oncology [Deutsche Gesellschaft für Radioonkologie (DEGRO)]

Prof. Dr. Cordula Petersen, Hamburg

Prof. Dr. Jürgen Dunst, Kiel

German Society for Rehabilitation Sciences [Deutsche Gesellschaft für Rehabilitationswissenschaften (DGRW)]

Prof. Dr. Hans Helge Bartsch, Freiburg

German Society for Senology [Deutsche Gesellschaft für Senologie (DGS)]

Prof. Dr. Rüdiger Schulz-Wendtland, Erlangen

German Society for Ultrasound in Medicine [Deutsche Gesellschaft für Ultraschall in der Medizin e. V. (DEGUM)]

Prof. Dr. Markus Hahn, Tübingen

German Roentgen Society [Deutsche Röntgengesellschaft e. V.]

Prof. Dr. Markus Müller-Schimpfle, Frankfurt

Till 31.12.16: Prof. Dr. Ulrich Bick, Berlin

from 01.01.17: PD Dr. E. Fallenberg, Berlin

German Physiotherapy Society [Deutscher Verband für Physiotherapie e. V. (ZVK)]

Ulla Henscher, Hanover

Reina Tholen, Cologne

Self-help group for women after cancer [Frauenselbsthilfe nach Krebs]

Dr. Renza Roncarati, Bonn

Roswita Hung, Wolfsburg

Association of Epidemiological Cancer Registries in Germany [Gesellschaft der epidemiologischen Krebsregister in Deutschland e. V. (GEKID)]

Prof. Dr. Alexander Katalinic, Lübeck

German Society of Plastic, Reconstructive and Aesthetic Surgery [Gesellschaft der Plastischen, Rekonstruktiven und Ästhetischen Chirurgie (DGPRÄC)]

Prof. Dr. Christoph Heitmann, Munich

Swiss Society of Gynecology and Obstetrics [Gynécologie Suisse (SGGG)]

Dr. Christoph Honegger, Baar

Conference of Oncological Nursing and Pediatric Nursing [Konferenz Onkologischer Kranken- und Kinderkrankenpflege (KOK)]

Kerstin Paradies, Hamburg

Austrian Society of Gynecology and Obstetrics [Österreichische Gesellschaft für Gynäkologie und Geburtshilfe (OEGGG)]

Prof. Dr. Vesna Bjelic-Radisic, Graz

Ultrasound Diagnosis in Gynecology and Obstetrics [Ultraschalldiagnostik in Gynäkologie und Geburtshilfe (ARGUS)]

Prof. Dr. med. Dr. h. c. Friedrich Degenhardt, Hanover

Table 3 Experts contributing in an advisory capacity and other contributors.

Name

City

Experts contributing in an advisory capacity

PD Dr. Freerk Baumann

Cologne

Prof. Dr. Matthias W. Beckmann

Erlangen

Prof. Dr. Jens Blohmer

Berlin

Prof. Dr. Peter Fasching

Erlangen

Prof. Dr. Nadia Harbeck

Munich

Prof. Dr. Peyman Hadji

Frankfurt

Prof. Dr. Hans Hauner

Munich

Prof. Dr. Sylvia Heywang-Köbrunner

Munich

Prof. Dr. Jens Huober

Ulm

Prof. Dr. Jutta Hübner

Jena

Prof. Dr. Christian Jackisch

Offenbach

Prof. Dr. Sibylle Loibl

Neu-Isenburg

Prof. Dr. Hans-Jürgen Lück

Hanover

Prof. Dr. Michael P. Lux

Erlangen

Prof. Dr. Gunter von Minckwitz

Neu-Isenburg

Prof. Dr. Volker Möbus

Frankfurt

Prof. Dr. Volkmar Müller

Hamburg

Prof. Dr. Ute Nöthlings

Kiel

Prof. Dr. Marcus Schmidt

Mainz

Prof. Dr. Rita Schmutzler

Cologne

Prof. Dr. Andreas Schneeweiss

Heidelberg

Prof. Dr. Florian Schütz

Heidelberg

Prof. Dr. Elmar Stickeler

Aachen

Prof. Dr. Christoph Thomssen

Halle (Saale)

Prof. Dr. Michael Untch

Berlin

Dr. Simone Wesselmann, MBA

Berlin

Dr. Barbara Zimmer, MPH, MA (Oncology Competence Center, MDK [Medical Service of the Health Insurance Funds] North-Rhine, not listed as an author at the explicit request of the MDK)

Düsseldorf

Other contributors

Katharina Brust, BSc (guideline secretariat)

Würzburg

Dr. Jasmin Festl (guideline assessment, selection of relevant publications)

Würzburg

Steffi Hillmann, MPH (search for and assessment of guidelines)

Würzburg

PD Dr. Mathias Krockenberger (selection of relevant publications)

Würzburg

Stephanie Stangl, MPH

Würzburg

Dr. Tanja Stüber (selection of relevant publications)

Würzburg


#

Abbreviations of the S3 Breast Cancer Guideline

ADH: atypical (intra) ductal hyperplasia
AI: aromatase inhibitor
AML: acute myeloid leukemia
APBI: accelerated partial breast irradiation
ASCO: American Society of Clinical Oncology
ADL: activities of daily living
AUC: area under the curve
BÄK: German Medical Association (Bundesärztekammer)
BCT: breast-conserving therapy
BI-RADS: breast imaging reporting and data system
BMI: body mass index
BPM: bilateral prophylactic mastectomy
BPSO: bilateral prophylactic salpingo-oophorectomy
BRCA1/2: breast cancer-associated gene 1/2
CAM: complementary and alternative methods
CAP: College of American Pathologists
CD: cognitive dysfunction
CDLT: complex/complete decongestive lymphatic therapy
CGA: comprehensive geriatric assessment
CHF: chronic heart failure
CIPN: chemotherapy-induced peripheral neuropathy
CISH: chromogenic in situ hybridization
CM: contrast media
CNB: core needle biopsy
CNS: central nervous system
CT: computed tomography
DCIS: ductal carcinoma in situ
DBT: digital breast tomosynthesis
DFS: disease-free survival
DGS: German Society for Senology (Deutsche Gesellschaft für Senologie)
DKG: German Cancer Society
DMP: disease management program
EC: expert consensus
ECE: extracapsular tumor extension
EIC: extensive intraductal component
ER: estrogen receptor
ESA: erythropoiesis-stimulating agents
ESAS: Edmonton Symptom Assessment Scale
ET: estrogen therapy
FEA: flat epithelial atypia
FISH: fluorescent in situ hybridization
FN: febrile neutropenia
FNA: fine needle aspiration
FNB: fine needle biopsy
G-CSF: granulocyte colony-stimulating factor
GnRHa: gonadotropin-releasing hormone agonist
HADS: Hospital Anxiety and Depression Scale
HER2: human epidermal growth factor receptor 2
HT: hormone therapy
IARC: International Agency for Research on Cancer
IBC: inflammatory breast cancer
IHC: immunohistochemistry
IMRT: intensity-modulated radiotherapy
IORT: intraoperative radiation therapy
IQWIG: Institute for Quality and Efficiency in Healthcare (Institut für Qualität und Wirtschaftlichkeit im Gesundheitswesen)
ISH: in situ hybridization
ITC: intrathecal chemotherapy
LABC: locally advanced breast cancer
LCIS: lobular carcinoma in situ
LN: lymph node
LoE: level of evidence
L-spine: lumbar spine
LVEF: left ventricular ejection fraction
LVI: lymphatic vessel invasion
MDS: myelodysplastic syndrome
MG: mammography
MRI: magnetic resonance imaging
MSP: mammography screening program
NAC: nipple-areolar complex
NACT: neoadjuvant chemotherapy
NCCN: National Comprehensive Cancer Network
NICE: National Institute for Health and Clinical Excellence
NNT: number needed to treat
NZGG: New Zealand Guidelines Group
OP: operation
OS: overall survival
PBI: partial breast irradiation
pCR: pathological complete remission
PET: positron emission tomography
PFS: progression-free survival
PI: proliferation index
PMRT: postoperative radiotherapy
PNP: polyneuropathy
POS: Palliative Outcome Scale
PR: progesterone receptor
PST: primary systemic therapy
QoL: quality of life
RCT: randomized controlled trial
RFA: radiofrequency ablation
ROR: risk of recurrence
RR: relative risk
RS: recurrence score
SABCS: San Antonio Breast Cancer Symposium
SBRT: stereotactic radiotherapy
SGB: German Social Security Code (Sozialgesetzbuch)
SIB: simultaneous integrated boost
SIGN: Scottish Intercollegiate Guidelines Network
SISH: silver-enhanced in situ hybridization
SLN: sentinel lymph node
SLNB: sentinel lymph node biopsy
SLNE: sentinel lymph node excision
s/p: status post
SSM: skin-sparing mastectomy
TACE: transarterial chemoembolization
TILs: tumor-infiltrating lymphocytes
TNBC: triple-negative breast cancer
TNM classification: tumor–node–metastasis classification
T-spine: thoracic spine
UICC: Union for International Cancer Control
US: ultrasound
VMAT: volumetric arc therapy
WHO: World Health Organization
 


#

II  Guideline Application

Purpose and objectives

The most important reason to update this interdisciplinary guideline was the epidemiological impact of breast cancer and its associated burden of disease, both of which are still high. This is the context in which the impact of new management concepts and their implementation needed to be evaluated.


#

Targeted areas of patient care

The guideline covers outpatient, inpatient and rehabilitative care.


#

Target patient groups

The recommendations of the guideline are aimed at all women and men who develop breast cancer as well as their relatives.


#

Target user groups/Target audience

The recommendations of the guideline are addressed to all physicians and professionals who provide screening services for women or care for patients with breast cancer (gynecologists, general practitioners, human geneticists, radiologists, pathologists, radio-oncologists, hemato-oncologists, psycho-oncologists, physiotherapists, nursing staff, etc.).


#

Adoption of the guideline and period of validity

This guideline is valid from December 1, 2017 through to November 30, 2022. Because of the contents of this guideline, this period of validity is only an estimate. It may become necessary to update the guideline because of new scientific evidence and knowledge as well as new developments affecting the methodology used for these guidelines. It is also necessary to edit and revise the guidelineʼs contents and re-evaluate and revise the key statements and recommendations of the guidelines at regular intervals.


#
#

III  Methodology

Basic principles

The method used to prepare this guideline was determined by the class to which this guideline was assigned. The AWMF Guidance Manual (version 1.0) has set out the respective rules and regulations for the different classes of guidelines. Guidelines are differentiated into lowest (S1), intermediate (S2) and highest class (S3). The lowest class is defined as a set of recommendations for action compiled by a non-representative group of experts. In 2004, the S2 class was subdivided into two subclasses: a systematic evidence-based subclass (S2e) and a structural consensus-based subclass (S2k). The highest class (S3) combines both approaches. This guideline is classified as: S3.


#

Grading of evidence

This guideline used the 2009 version of the system of the Oxford Centre for Evidence-based Medicine (levels 1 – 5) to classify the risk of bias in identified studies. This system classifies studies according to various clinical questions (benefit of therapy, prognostic value, diagnostic validity). For more detailed information, abbreviations and notes, see: https://www.cebm.net/2009/06/oxford-centre-evidence-based-medicine-levels-evidence-march-2009/


#

Grading of recommendations

While the classification of the quality of the evidence (strength of evidence) serves as an indication of the robustness of the published data and therefore expresses the extent of certainty/uncertainty regarding the data, the classification of the level of recommendation reflects the results of weighing up the desirable and adverse consequences of alternative approaches. This guideline shows the level of evidence for the underlying studies as well as the strength of the recommendation (level of recommendation) for all evidence-based Statements and Recommendations. This guideline differentiates between three levels of recommendation ([Table 4]). The levels reflect the strength of the respective recommendation and are also mirrored in the terms used to formulate the recommendation.

Table 4 Grading of recommendations.

Level of recommendation

Description

Syntax

A

strong recommendation, highly binding

must/must not

B

recommendation, moderately binding

should/should not

0

open recommendation, not binding

may/may not


#

Statements

Statements are expositions or explanations of specific facts, circumstances or problems with no direct recommendations for action. Statements are adopted after a formal consensus process using the same approach as that used when formulating recommendations and can be based either on trial results or expert opinions.


#

Expert consensus

As the expression implies, this term refers to consensus decisions taken specifically with regard to Recommendations/Statements without a previous systematic search of the literature (S2k) or when evidence is lacking (S2e/S3). The term “Expert Consensus” (EC) used here is synonymous with terms such as “Good Clinical Practice” (GCP) or “Clinical Consensus Point” used in other guidelines. The level of recommendation is graded as previously described in the Chapter “Grading of recommendations”, but the grading is only presented semantically (“must”/“must not” or “should”/“should not” or “may”/“may not”) without the use of symbols.


#

Guideline report

To edit and update the various topic areas, an adaptation of existing guidelines was planned for around 80% of Statements and Recommendations in accordance with the AWMF Guidance Manual. To do this, a systematic search was carried out for source guidelines developed specifically for women with breast cancer and published after 2013. Findings were compared with the IQWiG guideline report No. 224 (Systematische Leitlinienrecherche und -bewertung sowie Extraktion relevanter Recommendations für das DMP Brustkrebs [Systematic guideline search and appraisal as well as extraction of relevant recommendations for a breast cancer DMP]). A further inclusion criterion was compliance with methodological standards. Guidelines were included if they complied with at least 50% of Domain 3 (Rigour of Development) of the AGREE II instrument. A corresponding search and evidence assessment was specified in accordance with AWMF guidelines (systematic search, selection, compilation of evidence tables) for those recommendations which could not be adapted or had to be newly created. For newly developed Recommendations and Statements, appropriate key questions were formulated and a systematic search was carried out using aggregated sources of evidence (meta-analyses, systematic reviews, etc.) as well as individual publications in specific cases. A suitable list of titles and abstracts up to and including the identification of the full text were selected by two independent raters. After the search and selection processes were completed, the necessary evidence tables which formed the basis for the consensus conferences were compiled by the Methods group (financial support was provided and allowed a researcher to be specifically hired for this purpose). The classification system of the Oxford Centre for Evidence-based Medicine (version 2009) was used to grade the evidence. To update this guideline, Recommendations and Statements were adopted and levels of recommendation ([Table 4]) were determined during two structured consensus conferences which were preceded by a preliminary online ballot.

The guideline report provides an overview of the search strategies and selection processes used to select the literature and to formulate and grade the recommendations.


#
#

IV  Guideline

1  Treatment of primary breast cancer

1.1  Surgical treatment for invasive carcinoma

1.1.1  General recommendations

No.

Recommendations/
Statements

EG

LoE

Sources

4.19.

a) The basic therapy for all non-advanced breast cancers is complete resection of the tumor (R0 status).

A

1a

[1], [2]

b) The resection margin status has a prognostic effect on invasive breast cancer. There is a significant association between resection margin status (positive vs. negative) and local rate of recurrence.

A

1a

[3]


#

1.1.2  Breast-conserving therapy

Randomized clinical studies have shown that if certain clinical and histological parameters are taken into account, breast-conserving therapy achieves identical survival rates to those of mastectomy.

No.

Recommendations/
Statements

EG

LoE

Sources

4.20.

a) The goal of surgical therapy is complete removal of the tumor. Breast-conserving therapy (BCT) followed by full breast radiotherapy is equivalent to mastectomy alone in terms of survival rates.

1a

[4], [5], [6], [7], [8], [9], [10]

b) All appropriate patients, whether or not they have previously had primary systemic therapy, must be informed about the possibility of breast-conserving therapy (BCT) and about mastectomy with the options of primary or secondary reconstruction.

EC


#

1.1.3  Mastectomy

No.

Recommendations/
Statements

EG

LoE

Sources

4.21.

a) Mastectomy must be performed if any of the following indications are present:

  • Incomplete removal of the tumor (incl. any intraductal component), even after secondary resection

  • Inflammatory breast cancer (generally even in cases with pathological complete remission)

  • When follow-up radiation of the breast after breast-conserving therapy is contra-indicated but radiation is absolutely indicated

  • at the request of the patient who has been fully informed about her range of options

A

2b

[11], [12], [13]

b) If the resection margins are tumor-free, mastectomy may also be performed as a skin-sparing procedure with or without preservation of the NAC.

0

2a

[14], [15], [16], [17]

c) Depending on the tumor location and tumor size, mastectomy may be necessary in individual cases, even if multiple cancers are present.

0

2a

[18], [19], [20], [21], [22], [23], [24], [25]

d) Contralateral prophylactic mastectomy to reduce the risk of contralateral breast cancer should not be carried out in non-mutation carriers or patients with no evidence of high familial risk.

B

2b

[26], [27], [28]


#

1.1.4  Reconstructive plastic surgery procedures

No.

Recommendations/
Statements

EG

LoE

Sources

4.22.

Every patient scheduled for mastectomy must be informed about the options of having immediate or subsequent breast reconstruction or the option of forgoing reconstructive procedures; these patients should be offered the opportunity to contact other similarly affected people and self-help groups or organizations.

A

2b

[16], [29], [30]


#

1.1.5  Axillary surgery

No.

Recommendations/
Statements

EG

LoE

Sources

4.23.

a) Axillary staging is an essential part of the surgical therapy of invasive breast cancer.

EC

b) Staging must include sentinel lymph node biopsy (SLNB) even if the lymph node status is unremarkable on palpation and ultrasound.

A

1a

[30], [31], [32]

c) Clinically significant lymph nodes that are negative on biopsy should also be resected during SLNB.

B

2b

[30], [33]

d) Patients with pT1–pT2/cN0 tumors who undergo breast-conserving surgery followed by percutaneous radiation by tangential opposing fields (tangential radiation therapy) and who have one or two positive sentinel lymph nodes should not undergo axillary dissection.

B

1b

[31]

e) Patients who have mastectomy or to whom the above-listed criteria do not apply should undergo axillary dissection or receive axillary radiotherapy.

B

1b

[31], [34]

f) Targeted therapy of the lymph drainage areas (surgery, radiotherapy) must not be carried out if the patient only has micro-metastasis.

B

1b

[35], [36]

g) Patients treated with primary systemic therapy (PST) and whose lymph node status on palpation and ultrasound is negative prior to treatment should have SLN after PST.

B

2b

[37], [38]

h) Patients treated with primary systemic therapy (PST) whose nodal status on punch biopsy is positive (cN1) prior to treatment but whose nodal status after PST is clinically negative (ycN0) should undergo axillary dissection.

B

2b

[38], [39]

i) Patients treated with primary systemic therapy (PST) who have a positive nodal status before and after PST must undergo axillary dissection.

EC

j) Patients must not undergo axillary staging if there is evidence of distant metastasis.

EC


#
#

1.2  Adjuvant radiation therapy for breast cancer

No.

Recommendations/
Statements

EG

LoE

Sources

4.36.

After breast-conserving surgery for invasive carcinoma the affected breast must be treated with radiotherapy.

Provided the resection margins were tumor-free, patients with a clearly limited life expectancy (< 10 years) and a small (pT1), node-negative (pN0), hormone receptor-positive HER2-negative tumor and endocrine adjuvant therapy may avoid radiation therapy and accept the increased risk of local recurrence after receiving individual counselling.

Note for all Recommendations: all single positions are OR conjunctions. AND conjunctions are represented by “and”.

A

1a

[40], [41], [42], [43], [44], [45], [46], [47]

4.37.

Radiotherapy of the breast should be administered in hypofractionated doses (total dose: approx. 40 Gy in approx. 15 – 16 fractions over approx. 3 to 5 weeks) or may be administered as a standard fractionated regimen (total dose: approx. 50 Gy in approx. 25 – 28 fractions over approx. 5 – 6 weeks).

B/0

1a

[48], [49], [50], [51], [52], [53], [54]

4.38.

Local dose escalation (boost radiotherapy) of the tumor bed reduces the local rate of recurrence in the breast without achieving a significant survival benefit.

Boost radiotherapy

  • must therefore be carried out in all patients aged ≤ 50 years and

  • should only be carried out in patients aged > 51 years if they have an increased risk of local recurrence (G3, HER2-positive, triple-negative, >T1).

A/B

1a

[55], [56], [57], [58]

4.39.

Partial breast irradiation alone (as an alternative to secondary whole breast irradiation) may be carried out in patients with a low risk of recurrence.

0

1a

[59], [60], [61], [62], [63], [64]

4.40.

Postoperative radiotherapy of the thoracic wall after mastectomy reduces the risk of loco-regional recurrence and improves the survival of patients with locally advanced, node-positive breast cancer.

A

1a

[65]

4.41.

Radiation of the thoracic wall after mastectomy is indicated in the following situations:

  • pT4

  • pT3 pN0 R0 when additional risk factors are present (lymph node invasion (L1), G3 grading, premenopausal, age < 50 years)

  • R1/R2 resection and no possibility of a second curative resection

a) Post-mastectomy radiation must be carried out as a standard procedure if more than 3 axillary lymph nodes are affected.

b) If 1 – 3 axillary lymph nodes show tumor involvement, post-mastectomy radiation must be carried out if the patient has an increased risk of recurrence (e.g. HER2-positive, triple-negative, G3, L1, Ki-67 > 30%, > 25% of excised lymph nodes show tumor involvement; age ≤ 45 years with additional risk factors such as medial tumor location or tumor size > 2 cm, or ER-negative).

c) PMRT should not be carried out if 1 – 3 axillary lymph nodes show tumor involvement and the tumor has a low risk of local recurrence (pT1, G1, ER-positive, HER2-negative, at least 3 characteristics must apply).

d) For all other patients with 1 – 3 axillary lymph nodes with tumor involvement, the individual indication for treatment must be decided on by an interdisciplinary board.

A

1a

[65], [66], [67], [68], [69], [70], [71], [72], [73], [74], [75], [76], [77], [78], [79]

4.42.

After primary (neoadjuvant) systemic therapy, the indication for post-mastectomy radiotherapy must be based on the clinical staging prior to treatment; for pCR (ypT0 and ypN0) the indication for treatment must be decided on by an interdisciplinary tumor board and depends on the patientʼs individual risk profile.

A

1a

[80], [81], [82], [83]

Pretreatment

Post-treatment

RT-BCT1

PMRT2

RT-LAW3

1 with standard tangential treatment

2 if the patient underwent a mastectomy

3 together with PMRT or RT because of BCT

4 Criteria for a high risk of recurrence:

pN0 premenopausal, high risk: central or medial location, and (G2–3 and ER/PgR-negative)

pN1a high risk: central or medial location and (G2–3 or ER/PgR-negative) or premenopausal, lateral location and (G2–3 or ER/PgR-negative)

locally advanced

pCR/no pCR

yes

Yes

yes

cT1/2 cN1+

ypT1+ o. ypN1+ (no pCR)

yes

yes

yes

cT1/2 cN1+

ypT0/is ypN0 (SLNE ≥ 3 LN)

yes

cases with high risk4

cT1/2 cN0 (US obligatory)

ypT0/is ypN0 (SLNE ≥ 3 LN)

yes

no

no

No.

Recommendations/
Statements

EG

LoE

Sources

4.43.

Adjuvant irradiation of regional lymph drainage areas improves disease-free survival and overall survival rates in a subgroup of patients.

1a

[84], [85], [86], [87], [88]

4.44.

a) Irradiation of the supra-/infraclavicular lymph nodes may be an option for patients with pN0 or pN1mi stage disease under the following circumstances if all of the following conditions are met:

  • premenopausal and central or medial tumor location and G2–3 and ER/PgR-negative.

0

2a/2b

[84], [85], [86], [87], [88], [89], [90]

b) Irradiation of the supra-/infraclavicular lymph nodes should be carried out in patients with 1 – 3 affected lymph nodes in the following circumstances:

  • central or medial location and (G2–3 or ER/PgR-negative)

  • premenopausal, lateral location and (G2–3 or ER/PgR-negative)

B

2a

[84], [85], [86], [87], [88], [89], [90]

c) Irradiation of the supra-/infraclavicular lymph nodes must be generally carried out in all patients with > 3 affected axillary lymph nodes.

A

2a

[84], [85], [86], [87], [88], [89], [90]

4.45.

a) Irradiation of the internal thoracic artery lymph nodes may be carried out in patients without or with minimal axillary involvement (pN0 or pN1mi) in the following circumstances:

  • premenopausal and central or medial location and G2–3 and ER/PgR-negative

0

2b

[84], [85], [86], [87], [88]

b) Irradiation of the internal thoracic artery lymph nodes should be carried out in patients with 1 – 3 affected lymph nodes in the following circumstances:

  • central or medial location and (G2–3 or ER/PgR-negative)

  • premenopausal, lateral location and (G2–3 or ER/PgR-negative)

B

2b

[84], [85], [86], [87], [88]

c) Irradiation of the internal thoracic artery lymph nodes should be carried out in patients with > 3 affected axillary lymph nodes in the following circumstances:

  • G2–3 or ER/PgR-negative

B

2b

[84], [85], [86], [87], [88]

d) If tumor involvement of the internal thoracic artery lymph nodes is confirmed, they should be treated with radiotherapy.

B

2b

[84], [85], [86], [87], [88], [89], [90]

e) If patients have an increased cardiac risk or are receiving treatment with trastuzumab, the decision whether or not to irradiate the internal thoracic artery lymph nodes must be made on an individual basis by an interdisciplinary tumor board.

A

4

[91], [92]

4.46.

Expanded axillary radiation may be used to treat patients with 1 – 2 affected axillary sentinel lymph nodes if no axillary dissection is carried out or if the interdisciplinary tumor board agrees that no further local axillary therapy should be carried out (analogous to ACOSOG Z0011). The decision about the appropriate approach must be taken by an interdisciplinary tumor board.

0/A

2b

[35], [93], [94], [95]

4.47.

Radiotherapy of lymph drainage areas should be administered in standard fractions (5 × week 1.8 to 2.0 Gy, total dose: approx. 50 Gy over a period of approx. 5 – 6 weeks) or in hypofractionated doses (total dose: approx. 40 Gy in approx. 15 – 16 fractions over a period of approx. 3 to 5 weeks).

EC

4.48.

Treatment of patients with primary inoperable or inflammatory cancer must consist of primary systemic therapy followed by surgery and postoperative radiotherapy or, if the cancer continues to be inoperable, radiotherapy alone or preoperative radiotherapy.

A

1b

[96], [97]

4.49.

a) Postoperative chemotherapy and radiotherapy must be administered sequentially.

Note: No specific sequence (chemotherapy first or radiotherapy first) has been confirmed as superior. The sequence of chemotherapy followed by radiotherapy is the established sequence in clinical practice.

A

1b

[98], [99], [100], [101]

b) If only RT is administered, treatment with RT should commence within a period of 8 weeks postoperatively.

[102], [103]

c) Adjuvant endocrine therapy can be started independently of any radiotherapy. (1a)

Therapy with trastuzumab may be continued during radiotherapy. If the patient is receiving simultaneous irradiation of the internal thoracic artery lymph nodes, the appropriate approach must be decided on by an interdisciplinary tumor board. (4)

[91], [92], [104], [105]


#

1.3  Systemic adjuvant therapy (endocrine therapy, chemotherapy, antibody therapy)

1.3.1  Choice of adjuvant therapy and classification of risk

The 2009 St. Gallen Recommendations have pointed out the significance of endocrine sensitivity and the 2011 Recommendations have highlighted the importance of molecular subtypes as the decisive criteria whether adjuvant chemotherapy is indicated or not [106]. The markers ER, PgR, HER2 and Ki-67, which are identified by immunohistochemistry, are considered surrogate parameters for different molecular subtypes [106]. ER-positive and/or PgR-positive, HER2-negative tumors with low proliferation rates are classified as luminal A; if the proliferation rates are high, they are classified as luminal B. It should be noted that there is currently no validated threshold value for Ki-67 (e.g. for classifying a tumor as luminal A vs. luminal B or to confirm the decision for/against adjuvant chemotherapy).

Indications for adjuvant chemotherapy:

  • simultaneous anti-HER2 therapy with trastuzumab over a period of 1 year combined with (neo-) adjuvant chemotherapy is the standard approach for HER2-positive tumors

  • non-endocrine-sensitive tumors (ER- and PgR-negative)

  • tumors which may not be endocrine-sensitive

  • node-positive tumors (studies are currently being carried out to evaluate whether patients with low numbers of affected lymph nodes [1 – 3 affected LN] and favorable tumor biology [luminal A] may not need adjuvant chemotherapy)

  • G III

  • young age at onset (< 35 years)

Chemotherapy is always indicated if the individual expected benefit is higher than potential side effects and long-term negative effects. This requires careful, in-depth counselling and discussions with the patient, particularly if the expected benefit is minimal.


#

1.3.2  Endocrine therapy

No.

Recommendations/
Statements

EG

LoE

Sources

* ≥ 10% progesterone-receptor-positive tumor cell nuclei

4.50.

a) Patients with estrogen and/or progesterone receptor-positive* invasive tumors must receive endocrine therapy.

A

1a

[30], [107], [108], [109], [110]

b) Endocrine therapy must only be started after chemotherapy has been completed but it can be administered in parallel to radiotherapy.

A

1a

[30], [45], [107], [108], [109], [110]

4.51.

After 5 years of tamoxifen the decision whether or not to continue endocrine therapy must be re-evaluated in every patient with ER+ breast cancer.

When considering whether or not to continue endocrine therapy, the risk of recurrence and the therapy-related side effects (toxicity, decreased adherence) should be weighed up.

The patientʼs current menopausal status must be taken into account when selecting the appropriate endocrine therapy.

A/B

Adapt. from guide-line

[111]

4.52.

Premenopausal patients must receive tamoxifen therapy for at least 5 years.

Antiestrogen therapy with tamoxifen 20 mg per day must be administered for a period of 5 – 10 years depending on the risk of recurrence or until recurrence occurs.

Whether or not expanded therapy is indicated depends on the risk of recurrence and the patientʼs wishes.

A

1a

[107], [108], [112], [113], [114]

4.53.

a) High-risk patients with ER+ breast cancer who are still premenopausal after completing chemotherapy may be treated with an aromatase inhibitor after suppressing ovarian function.

EC

b) Suppression of ovarian function alone can be considered in premenopausal women with ER+ breast cancer who cannot receive tamoxifen or do not want to be treated with tamoxifen; suppression can be achieved either by administering a GnRHa or by oophorectomy.

EC

c) Suppression of ovarian function (by GnRHa or bilateral oophorectomy) in addition to tamoxifen or an aromatase inhibitor must only be considered in patients with a high risk of recurrence who are premenopausal after receiving adjuvant chemotherapy. Suppression of ovarian function is mandatory when treatment consists of administering aromatase inhibitor.

A

Adapt. from guide-line

[115]

4.54.

Adjuvant endocrine therapy for postmenopausal patients with ER+ breast cancer should include an aromatase inhibitor.

B

1b

[115]


#

1.3.3  Adjuvant chemotherapy

No.

Recommendations/
Statements

EG

LoE

Sources

4.55.

a) Adjuvant chemotherapy is indicated for:

  • HER2-positive tumors (from pT1b, N0; pT1a, N0 if additional risks are present: e.g., G3, ER/PR-negative, high Ki67 levels)

  • Triple-negative tumors (ER- and PgR-negative, HER2-negative)

Luminal-B tumors with a high risk of recurrence (high Ki-67 levels, G3, high-risk multigene assay, young age at onset, lymph nodes show tumor involvement)

B

1a

[4], [11], [116], [117], [118], [119]

b) Chemotherapy must be administered in the recommended doses.

Under-dosing or reducing the number of cycles risks reducing the efficacy of chemotherapy.

A

1a

[118], [120], [121], [122], [123], [124]

4.56.

Cytostatic agents may be administered simultaneously or sequentially (according to the evidence-based protocols).

Dose-dense therapies should be used to treated suitable patients with a high tumor-related risk of mortality.

B

1b.

[125], [126], [127], [128], [129], [130]

4.57.

Adjuvant chemotherapy should include a taxane and an anthracycline.

B

1a

[116], [126], [131], [132], [133], [134], [135], [136], [137], [138], [139]

6 cycles of TC (docetaxel/cyclophosphamide) may be an alternative in patients with moderate clinical risk (≤ 3 affected lymph nodes).

0

1a

Standard adjuvant chemotherapy must take 18 – 24 weeks.

A

1a


#

1.3.4  Neoadjuvant therapy

No.

Recommendations/
Statements

EG

LoE

Sources

4.58.

a) Neoadjuvant (primary, preoperative) systemic therapy is considered the standard treatment for patients with locally advanced, primary inoperable or inflammatory breast cancer in the context of a multimodal therapy concept.

EC

b) Neoadjuvant systemic therapy should be preferred if the same postoperative adjuvant chemotherapy is indicated.

EC

4.59.

a) If chemotherapy is indicated, it can be administered prior to surgery (neoadjuvant) or after surgery (adjuvant). Both approaches are equivalent with regard to overall survival.

Neoadjuvant therapy may lead to a higher rate of breast-conserving therapies.

1a

[140], [141], [142]

b) The effect (pathohistological remission) is greatest for hormone receptor-negative cancers.

1a

[140], [141], [143], [144]

c) Resection within the new tumor margins is possible if R0 resection can be achieved.

EC

4.60.

a) Postmenopausal patients with endocrine-sensitive breast cancer, for whom surgery or chemotherapy is not possible or who do not want surgery or chemotherapy, may be treated with primary endocrine therapy.

EC

b) Neoadjuvant endocrine therapy is not a standard therapy; neoadjuvant endocrine therapy may be considered in special situations (inoperable cancer, multiple morbidities).

EC

4.61.

a) If a neoadjuvant chemotherapy combination is used, it should include an anthracycline and a taxane. Preoperative therapy should take 18 – 24 weeks.

HER2-positive tumors for which neoadjuvant chemotherapy is indicated should be treated with trastuzumab. High-risk (clinical/sonographic findings or N+ on punch biopsy, tumor size > 2 cm) HER2-positive patients should additionally receive pertuzumab.

EC

b) Platinum salts increase the complete remission rate (pCR rate) in patients with triple-negative breast cancer (TNBC) irrespective of their BRCA status. The benefit for progression-free survival (PFS) and overall survival has not yet been conclusively confirmed. The toxicity is higher.

EC

4.62.

If anthracycline-taxane-based neoadjuvant chemotherapy is adequate, no additional adjuvant chemotherapy is recommended for tumor residues in the breast and/or lymph nodes. Post-neoadjuvant chemotherapy treatment should only be carried out in the context of clinical trials.

EC


#

1.3.5  Antibody therapy

No.

Recommendations/
Statements

EG

LoE

Sources

4.63.

a) Patients with HER2-overexpressing tumors with a diameter ≥ 1 cm (immunohistochemical score 3+ and/or ISH-positive) must receive (neo) adjuvant treatment with an anthracycline followed by a taxane in combination with trastuzumab. Trastuzumab must be administered over a total period of one year.

A

1b

[16], [29], [30]

b) Adjuvant treatment with trastuzumab should preferably be started at the same time as the taxane phase of adjuvant chemotherapy.

B

2a

[145]

c) If chemotherapy is indicated to treat HER2+ tumors ≤ 5 mm, trastuzumab should be additionally administered.

Six cycles of TCH (docetaxel, carboplatin, trastuzumab) every 3 weeks may also be recommended as an adjuvant treatment. The cardiotoxicity of this approach is lower than after treatment with anthracyclines

EC


#

1.3.6  Bone-targeted therapy

1.3.6.1  Therapy and prevention of cancer treatment-induced bone loss

The risk of bone density loss with destruction of bone structure and the risk of therapy-related osteoporosis followed by an increased risk of fractures is significantly higher in patients with malignant disease [146]. Apart from such commonly reported changes as immobilization and changes in lifestyle (e.g. discontinuation of estrogen therapy), it is primarily drug therapies that are responsible for osseous changes. Supportive therapies (e.g. cortisone preparations) are as likely to damage bones as cytotoxic or endocrine drugs. This issue is becoming increasingly important following the high curative rates for many solid tumors, particularly for breast cancer.

In premenopausal women with hormone receptor-positive breast cancer, ovarian function suppression (e.g. using GnRH analogs) alone or in combination with tamoxifen or an aromatase inhibitor and treatment with tamoxifen alone leads to a loss of bone density and an increased incidence of osteoporosis compared to healthy control populations [147], [148], [149]. The combination of ovarian function suppression with an aromatase inhibitor led to the greatest decrease in bone density [147].

In postmenopausal women, treatment with aromatase inhibitors also leads to a loss of bone density and an increased incidence of fractures compared to women treated with tamoxifen [150], [151], [152], [153].

Chemotherapies can also result in a significant loss of bone density [154], [155].

The indication for preventive treatment depends on the patientʼs gender, age and bone density and should take the patientʼs history and lifestyle into account. Primary prevention of cancer therapy-induced bone loss should be considered if patients present with a special combination of risks [156], [157]. These include advanced age, low body mass index, nicotine abuse, therapy with aromatase inhibitors, familial disposition, long-term cortisone therapy, immobility, endocrine disease, medication (Confederation of German-speaking Scientific Osteology Society, http://www.dv-osteologie.org) [158].

No.

Recommendations/
Statements

EG

LoE

Sources

4.64.

In patients with an increased familial or cancer therapy-related risk of bone loss, bone density measurements should be carried out prior to starting treatment.

Bone density measurements should be repeated at regular intervals depending on the results and the presence of additional risk factors.

EC

4.65.

Depending on the patientʼs individual combination of risk factors for developing osteoporosis, preventive treatment should be considered to prevent cancer therapy-induced osteoporosis (http://www.dv-osteologie.org; ESMO bone health guidance).

EC

4.66.

Osteoprotective therapy should be considered for premenopausal patients receiving GnRH and/or TAM and postmenopausal patients receiving treatment with AI.

B

1b

[147], [150], [152], [158]

4.67.

Hormone therapy with estrogens should not be used to prevent cancer therapy-related osteoporosis in breast cancer patients as an increased rate of recurrence cannot be excluded, particularly in patients with hormone receptor-positive disease.

B

1a

[159]

4.68.

In addition to these general recommendations, bisphosphonates or denosumab may be used for primary prevention of cancer therapy-induced bone loss.

EC

4.69.

A reduced risk of fractures associated with endocrine therapy has only been clearly confirmed for denosumab but has not yet been confirmed for bisphosphonates.

A

1

[150]

4.70.

Bone-targeted therapy to prevent therapy-related osteoporosis should be carried out for the duration of endocrine therapy.

EC

1.3.6.1.1  Therapy for cancer therapy-induced osteoporosis

No.

Recommendations/
Statements

EG

LoE

Sources

4.71.

It is important to exclude bone metastasis if a bone fracture occurs which was not caused by sufficiently powerful trauma.

EC


#

1.3.6.2  Adjuvant therapy to improve bone metastasis-free survival and overall survival

According to the “seed and soil” hypothesis, luminal breast cancer cells are particularly prone to metastasize in bone where they are then detected in the form of disseminated tumor cells [160], [161], [162]. Bisphosphonates and probably also denosumab appear to have a therapeutic effect with regard to the persistence of these cells and thus on the incidence of secondary bone metastasis [163].

Two meta-analyses evaluated studies on the adjuvant use of different bisphosphonates. Ben-Aharon and colleagues found a positive effect on survival in postmenopausal patients with breast cancer (HR 0.81 [0.69 – 0.95]) [164]. In their meta-analysis, Coleman and colleagues reported a significant positive effect on bone metastasis-free survival of 34% and on overall survival of 17% for postmenopausal patients (including premenopausal patients with ovarian function suppression from GnRH analogs; ABCSG-12) [165].

The meta-analyses found no significant benefit for premenopausal patients (without ovarian function suppression from GnRH analogs) with regard to disease-free survival, bone metastasis-free survival and overall survival. No effect on prognosis was detected in an evaluation of a secondary endpoint carried out in a subpopulation of premenopausal patients (the majority of whom did not have suppression of ovarian function), despite the high therapy density at the start of treatment (AZURE trial [158]).

To date, no bisphosphonate has been approved for use in adjuvant therapy in the European Union, meaning that treatment can currently only be carried out as an off-label use.

No.

Recommendations/
Statements

EG

LoE

Sources

4.72.

Adjuvant bisphosphonate therapy prolongs bone metastasis-free survival and overall survival in postmenopausal patients with breast cancer and in premenopausal patients with ovarian function suppression (off-label use).

A

1

[164], [165]

4.73.

It is currently not possible to recommend the adjuvant use of bisphosphonates or denosumab for premenopausal patients with suppression of ovarian function.

0

1b

[158], [164], [165]


#

1.3.6.3  Bone-targeted therapy for patients with bone metastasis

The most common metastases of breast cancer occur in bone marrow. Luminal tumors have a particular affinity to the skeleton. The most common complications of bone metastases are pain, pathological fractures, vertebral compression syndrome, and hypercalcemia [166]. If the aforementioned symptoms (with the exception of pain) occur, then morbidity is significantly increased. A number of different measures can be initiated to prevent these serious complications.

The interdisciplinary AWMF S3 guideline 032-054OL “Supportive Therapy for Oncology Patients” provides a detailed discussion of the diagnosis and therapy of bone metastases [167]).

No.

Recommendations/
Statements

EG

LoE

Sources

4.74.

Patients must go to the dentist before starting adjuvant osteoprotecttive therapy. The Recommendations of the S3 guideline on “Antiresorptive drug-related necrosis of the jaw” apply.

EC


#
#

1.3.7  Lifestyle factors which can be influenced

No.

Recommendations/
Statements

EG

LoE

Sources

4.75.

Patients must be motivated to carry out physical exercise and to normalize their body weight (if their BMI is high). Patients should receive support and assistance. It is particularly recommended that patients:

a) avoid physical inactivity and return to normal daily activities as early as possible after diagnosis (LoE 2a)

b) work towards achieving the goal of 150 minutes of moderate or 75 minutes of strenuous physical activity per week (LoE 1a)

A

2a/1a

[168], [169], [170], [171]

4.76.

Patients should be offered weight training programs, particularly when they are undergoing chemotherapy and hormone therapy.

B

1b

[172], [173], [174], [175]

4.77.

Patients should be advised and taught to do regular sports activities and physical exercise to treat breast cancer-associated fatigue.

B

1a

[176], [177], [178], [179]

4.78.

If manifest chemotherapy-induced polyneuropathy is present, patients should have exercise therapy to improve functionality.

This may include:

  • balance exercises

  • sensorimotor training

  • coordination training

  • vibration training

  • fine motor skills training

B

1a/2a

[173], [174], [180], [181]

4.79.

Patients with lymphedema after surgery for breast cancer must be started on monitored, gradually progressive weight training to treat lymphedema.

B

1b

[182], [183], [184], [185], [186], [187]

4.80.

Patients should be counselled (a) about achieving and maintaining a healthy body weight, and (b) if they are overweight or obese, about how to limit their consumption of highly-calorific food and drinks and how to increase their physical activity to promote moderate weight loss and maintain it over the long-term.

A

Adapt. From guide-line

[188]

4.81.

Patients should be counselled on how to achieve and adhere to a nutritional program rich in vegetables, fruit, wholegrain and pulses which contains few saturated fats and only limited alcohol consumption.

A

Adapt. from guide-line

[188]

4.82.

Patients must receive counselling not to smoke; if necessary, smokers must be recommended smoking cessation programs.

A

2a

[188]

4.83.

To prevent late recurrence (> 5 years after primary diagnosis), patients with receptor-positive disease should avoid a daily alcohol consumption of > 12 g pure alcohol.

B

2a

[189]


#
#

1.4  Breast cancer during pregnancy and lactation, pregnancy after breast cancer, fertility preservation

1.4.1  Pregnancy after breast cancer

No.

Recommendations/
Statements

EG

LoE

Sources

7.1.

Patients who have had breast cancer must not be counselled against becoming pregnant. This applies irrespective of their hormone status.

A

3a

[190], [191]

7.2.

a) The interval until becoming pregnant after breast cancer is not correlated with a poorer prognosis.

A

3a

[190]

b) The risk of recurrence depends on the tumor biology and the stage of disease. This must be discussed during counselling for any subsequent pregnancy.

EC

7.3.

The longer the endocrine therapy, the better the chances for a cure (see Chapter 4.7.2 Endocrine therapy). If the patient wished to become pregnant before completing endocrine therapy, then endocrine therapy should be continued after the patient has given birth and stopped breastfeeding.

EC

7.4.

a) Patients can try to become pregnant after breast cancer with the help of reproductive medical procedures.

0

4

[192], [193], [194]

b) The chances of success (i.e. an intact pregnancy or baby) are lower for breast cancer patients when autologous eggs are used compared to women without breast cancer.

2c

[195]


#

1.4.2  Breast cancer during pregnancy

No.

Recommendations/
Statements

EG

LoE

Sources

7.5.

a) Treatment (systemic therapy, surgery, RT) for breast cancer (in pregnant patients) during pregnancy must be as similar as possible to treatment administered to younger, non-pregnant patients with breast cancer.

EC

b) Standard chemotherapy with anthracyclines and taxanes may be administered in the 2nd and 3rd trimester of pregnancy.

0

2b

[196], [197], [198], [199], [200]

c) Anti-HER2 therapy must not be administered during pregnancy.

A

3a

[196], [197], [199]

d) Endocrine therapy must not be administered during pregnancy.

EC

e) Surgery may be carried out in the same way as in non-pregnant patients.

EC


#

1.4.3  Fertility preservation

No.

Recommendations/
Statements

EG

LoE

Sources

7.6.

a) Patients of childbearing age with breast cancer must receive counselling about fertility and preserving fertility before starting cancer treatment.

EC

b) The administration of a GnRH analog before starting chemotherapy may be considered in all women who wish to preserve their ovarian function/fertility.

0

1b

[200], [201], [202], [203], [204], [205], [206]


#
#

1.5  Breast cancer in older patients

1.5.1  General comments

No.

Recommendations/
Statements

EG

LoE

Sources

8.1.

Therapeutic decisions for older patients should be based on current standard recommendations but also take account of the patientʼs biological age, life-expectancy and preferences; the benefits and risks of such therapy must be weighed up.

EC


#

1.5.2  Geriatric patients

No.

Recommendations/
Statements

EG

LoE

Sources

8.2.

Patients who are older than 75 years should have a geriatric assessment or screening using a geriatric assessment algorithm, particularly if chemotherapy or surgery requiring a general anesthetic is planned, with the aim of improving therapy adherence, tolerance of chemotherapy and possibly survival.

B

2a

[207], [208], [209], [210]

8.3.

Geriatric assessment and management should cover therapy-relevant geriatric domains (particularly functionality-related parameters such as activities of daily living, mobility, cognition, falls, and morbidity-related parameters such as multiple medication, nutrition, fatigue, and number of comorbidities) in order to adapt the choice of therapy accordingly and start supportive measures.

B

2a

[30], [211], [212], [213], [214]


#

1.5.3  Local therapy

No.

Recommendations/
Statements

EG

LoE

Sources

8.4.

a) Surgical therapy to treat older patients is basically no different from the surgical therapy used to treat younger patients.

EC

b) Patients with ER/PR-positive breast cancer: primary endocrine therapy should be started if surgery is not carried out because of the patientʼs frailty (e.g., comorbidities and higher anesthetic risk) or because the patient rejects surgery. When deciding on the appropriate therapy, any drug-related specific side effects, particularly the risk of thrombosis/embolism (tamoxifen) and the risk of bone fractures (aromatase inhibitors), must be taken into consideration.

B

1b

[215]

c) Patients with ER- and PR-negative breast cancer: if surgery under general anesthesia is not carried out because of the patientʼs frailty (e.g. comorbidities and increased surgical risk) or because the patient rejects surgery, surgery under local anesthesia, primary radiotherapy or purely palliative medical treatment may be considered.

EC


#

1.5.4  Adjuvant endocrine therapy

No.

Recommendations/
Statements

EG

LoE

Sources

8.5.

Endocrine therapy is recommended for patients with hormone receptor-positive disease. Endocrine therapy may be dispensed with in individual cases (i.e., when treating patients with very low-grade tumors or very favorable tumor biology or if the patient is very frail).

0

2b

[213], [216]


#

1.5.5  Adjuvant chemotherapy

No.

Recommendations/
Statements

EG

LoE

Sources

8.6.

As patients become frailer with increasing age, their reduced physical reserves and changes in their pharmacokinetics may lower the tolerability of chemotherapy and increase the rate of side effects requiring treatment.

EC

8.7.

Chemotherapy may be associated with a significant reduction in cognitive performance in older women aged > 70 years.

2b

[217], [218]

8.8.

Preference should be given to anthracycline and/or taxane-based combinations or sequential regimens. The increased risk of cardiotoxicity and of MDS/AML associated with anthracyclines must be taken into consideration.

B

2a

[219], [220], [221], [222], [223], [224], [225], [226], [227]


#

1.5.6  Anti-HER2 therapy

No.

Recommendations/
Statements

EG

LoE

Sources

8.10.

Treatment is analogous to the treatment administered to younger patients and consists of trastuzumab combined sequential anthracycline-taxane-based chemotherapy.

It is important to be aware of the increased risk of cardiotoxicity associated with this approach. (EC)

An anthracycline-free combination consisting of carboplatin-docetaxel or docetaxel-cyclophosphamide may be used. (1b)

EC/1b

[214], [228], [229], [230]

8.11.

Paclitaxel administered weekly (over 12 weeks) with trastuzumab may be used to treat T1–2 (up to 3 cm) pN0 tumors.

0

2b

[231], [232]


#
#

1.6  Breast cancer in men

Breast cancer in men should be diagnosed and treated by an interdisciplinary group of specialists. Because of the type of tumor biology and the similarities to breast cancer in women, specialists for gynecologic oncology must also be involved when treating breast cancer in men. An interdisciplinary cooperation between breast centers, gynecologists, urologists and andrologists is particularly advisable when treating sexual disorders caused by therapy with tamoxifen, men with BRCA mutations [233] who have an increased associated risk of prostate cancer, and men with breast cancer who must be treated for benign prostate syndrome [234].

No.

Recommendations/
Statements

EG

LoE

Sources

9.1.

a) Patients must be encouraged to ask for medical counselling early on and provided with information about disease, particularly about symptoms and changes in the breast; they must be encouraged to monitor themselves.

b) If there is a suspicion of malignancy, the initial investigation must include taking the patientʼs history, clinical examination, mammography, and ultrasound examination of the breast and of the lymphatic drainage areas. There are no data on the diagnostic use of CM-MRI.

c) If there are malignant findings in the breast and axilla, further examinations with staging/investigation into the extent and spread of disease must be carried out in accordance with the recommendations made for women in the same situation, although there are no data on the diagnostic use of CM-MRI.

EC

9.2.

a) The aim of surgery is complete resection of the tumor. Surgery should consist of a mastectomy. Breast-conserving surgery should be considered if the tumor is small enough.

b) If the axilla are clinically unremarkable (cN0), sentinel lymph node resection must be carried out, with the same rules applying as for women.

EC

9.3.

Irrespective of surgery, adjuvant radiotherapy of the thoracic wall and, if necessary, of the lymphatic drainage areas (the indications for this are the same as for women) must be carried out to treat large tumors (≥ 2 cm) and axillary lymph node involvement if the hormone receptor status is negative.

EC

9.4.

When deciding whether adjuvant chemotherapy and antibody therapy (anti-HER2) are indicated, the same rules apply as for women and the same therapy must be carried out.

EC

9.5.

Patients with hormone receptor-positive breast cancer must receive adjuvant endocrine therapy with tamoxifen, usually over a period of 5 years. There are no data available about treatment for more than 5 years. It may be considered in individual cases in the same way it would be considered when treating women.

EC

9.6.

a) Metastatic disease should be treated according to the same rules as those used to treat women.

b) It is not clear whether aromatase inhibitors are sufficiently effective in men without suppression of testicular function. Aromatase inhibitors should therefore be administered together with suppression of testicular function.

EC

9.7.

Men with breast cancer should be offered the opportunity to participate in trials/be included in tumor registers.

EC

9.8.

Genetic testing must be recommended to all men with breast cancer.

EC

9.9.

The follow-up regimen including imaging evaluations must be analogous to the approach used for women.

EC

9.10.

The patient should be provided with qualified and relevant gender-specific information (in print and online) by the professionals who treat them, and the patient should be helped to access the targeted support and information available from self-help groups.

EC

Table 5 Risk factors for men to develop breast cancer.

Age

Unimodal age distribution; the highest incidence is in the 71st year of life

Ethnicity

Increased risk for men of African or Caribbean descent, who usually also have an advanced stage of disease when they are first diagnosed

Germline mutations

If the patientʼs family has a positive history of germline mutations for both sexes, they have a 2.5-fold higher risk of disease; BRCA-2 mutations were confirmed in 4 – 40% of all cases; RAD51B gene modifications increase the risk by 50%

Endocrine causes

Exposure to exogenous estrogen, e.g. hormone therapy for transsexuals, treatment of prostate cancer, professional exposure

Increased endogenous estrogen synthesis: Klinefelter syndrome, obesity

Decreased levels of androgen: orchiectomy, undescended testicle, mumps orchitis, cirrhosis of the liver

Environment

Lifestyle: obesity, lack of exercise, excessive consumption of alcohol

Exposure to radiation: nuclear weapons, radiotherapy, diagnostic radiology

Professional exposure: high temperatures, petroleum, exhaust gases


#
#

2  Therapy (Recurrence/Metastasis)

2.1  Therapy for local/loco-regional recurrence

2.1.1  Local (intramammary) recurrence

No.

Recommendations/
Statements

EG

LoE

Sources

5.7.

a) If there is a suspicion of loco-regional recurrence, the first step must be histological verification including repeat determination of ER, PR and HER2/neu status and complete re-staging to exclude metastasis and make it possible to plan an interdisciplinary therapy strategy.

EC

b) The highest level of local tumor control in patients with intramammary recurrence (DCIS/invasive carcinoma) is achieved by secondary mastectomy.

EC

c) If the initial situation is favorable (e.g. DCIS or invasive carcinoma with a lengthy recurrence-free interval and no skin involvement), then breast-conserving surgery can be carried out again after careful counselling of the patient.

0

4a

[235], [236], [237], [238]

d) Prior to carrying out another breast-conserving surgery, the possibility of carrying out repeat radiotherapy (partial breast irradiation) should be investigated and discussed by an interdisciplinary tumor conference; if necessary, the patient should have an appointment with a radiotherapist.

EC

e) After breast-conserving surgery, the patient must be informed about the increased risk of repeat intramammary recurrence.

EC


#

2.1.2  Local recurrence after mastectomy

No.

Recommendations/
Statements

EG

LoE

Sources

5.8.

Any isolated recurrence in the thoracic wall must be completely resected (R0) where possible. If the main site of recurrence is the ribs/intercostal muscles, the decision for therapy should be taken after interdisciplinary consultation with a specialist for thoracic surgery.

EC

5.9.

Local therapy (surgical intervention, radiotherapy) may be considered for symptomatic local recurrence (e.g. ulceration, pain) to reduce symptoms, even if the patient has distant metastasis.

EC


#

2.1.3  Axillary lymph node recurrence

No.

Recommendations/
Statements

EG

LoE

Sources

5.10.

In the event of axillary lymph node recurrence, local recurrence of disease should be controlled by repeat surgical axillary intervention, if need be with radiotherapy. Thoracic CT should be done preoperatively to identify the extent of LN metastasis.

EC


#

2.1.4  Drug therapy

No.

Recommendations/
Statements

EG

LoE

Sources

5.11.

Systemic therapy after R0 resection of loco-regional recurrence must be considered to prolong the disease-free interval and overall survival.

EC


#

2.1.5  Radiotherapy

No.

Recommendations/
Statements

EG

LoE

Sources

5.12.

a) The question whether radiation is indicated after surgery for recurrence must be discussed and decided by an interdisciplinary tumor board.

Postoperative radiotherapy should be carried out if no radiotherapy was carried out previously or if the local recurrence was not radically resected (R1–2).

EC

b) Palliative radiotherapy, if necessary in combination with chemotherapy, may be used to treat inoperable local recurrence and control symptoms.

EC

c) If there is intramammary recurrence or recurrence in the thoracic wall after breast-conserving surgery (R0) or mastectomy (R0) which was not followed by radiotherapy, the decision whether adjuvant radiotherapy is indicated must follow the recommendations for primary disease.

EC

d) If intramammary recurrence occurs after breast-conserving surgery (R0) followed by radiotherapy, the question whether adjuvant radiotherapy is indicated must be discussed by an interdisciplinary tumor board. Radiotherapy may be indicated for patients who did not experience serious late sequelae after the 1st radiotherapy.

EC

e) In the event of recurrence in the thoracic wall after mastectomy (R0) followed by radiotherapy, the question whether repeat radiotherapy is indicated for local control should be discussed by an interdisciplinary tumor board.

EC

f) In the event of recurrence in the thoracic wall after primary mastectomy without subsequent radiotherapy, adjuvant radiotherapy should be carried out after resection of the recurrence (R0) if additional risk factors are present (very small resection margins, rpN+, G3, lymph node invasion).

EC

g) In the event of recurrence in the thoracic wall after primary mastectomy without subsequent radiotherapy, the question whether repeat adjuvant radiotherapy is indicated after resection of the recurrence (R0) when additional risk factors are present (very small resection margins, rpN+, G3, lymph node invasion) should be discussed by an interdisciplinary tumor board. Radiotherapy may be indicated for patients who did not experience serious late sequelae after the 1st radiotherapy.

EC

h) Additional radiotherapy must be recommended if recurrence occurs in an area which was not previously irradiated, the recurrence was not completely resected (R1/R2), and the risk associated with complete surgical resection (R0) cannot be justified.

EC

i) An interdisciplinary tumor board must decide whether repeat radiotherapy is indicated when recurrence occurs after prior radiotherapy, the recurrence was not completely resected (R1/R2), and the risk associated with complete surgical resection (R0) cannot be justified.

Radiotherapy may be indicated in patients who did not experience serious late sequelae after the 1st radiotherapy.

EC


#
#

2.2  Distant metastases

2.2.1  Systemic therapy for metastatic breast cancer

No.

Recommendations/
Statements

EG

LoE

Sources

5.13.

Endocrine therapy ± targeted therapy is the therapy of choice for patients with hormone receptor-positive and HER2-negative cancer. Endocrine therapy is not indicated in patients for whom rapid remission is important to avoid pronounced symptoms in the affected organ.

A

1b

[30], [239], [240], [241], [242], [243]

5.14.

Combined chemo-endocrine therapy is not recommended. Although this approach can increase the rate of remission, it also leads to increased toxicity without prolonging the progression-free interval or improving overall survival.

A

1a

[244]

5.15.

In premenopausal patients, suppression of ovarian function (with GnRH analogs, oophorectomy) combined with tamoxifen is the first-choice therapy if treatment with tamoxifen was not concluded less than 12 months previously. An alternative approach consisting of suppression of ovarian function followed by the same treatment as that recommended for postmenopausal women may be chosen, and endocrine therapy may be combined with CDK 4/6 inhibitors.

A

1b

[30], [242], [245], [246]

5.16.

Subsequently, ovarian suppression combined with an aromatase inhibitor or fulvestrant, if necessary in combination with palbociclib, can be used to treat premenopausal patients. As long as ovarian suppression is maintained, treatment may be administered in the same way as therapy for postmenopausal patients.

0

2c/EC

[247], [248]

5.17.

In postmenopausal patients, the first step of endocrine treatment for metastasis should consist of an aromatase inhibitor if adjuvant therapy consisted exclusively of tamoxifen or the patient did not receive adjuvant therapy. It is not possible to give a clear recommendation whether primary endocrine treatment should consist of a steroidal or a non-steroidal aromatase inhibitor. Letrozole may be combined with a CDK 4/6 inhibitor.

A

1a

[30], [239], [242], [249], [250], [251], [252]

5.18.

Treatment with fulvestrant should be carried out after pretreatment with an aromatase inhibitor, although fulvestrant may also be used as a first-line therapy, particularly for patients who have not previously received endocrine therapy.

EC

5.19.

No specific therapy sequence is recommended. A combination treatment consisting of letrozole or fulvestrant with a CDK 4/6 inhibitor represents an alternative to monotherapy.

Follow-up therapy with exemestane and the mTOR inhibitor everolimus may be administered after anti-hormonal pretreatment with a non-steroidal aromatase inhibitor.

Studies have shown that combination therapies prolonged progression-free survival but it has not yet been proven that they improve overall survival.

EC

5.20.

Depending on the patientʼs previous treatment, the next steps in the endocrine treatment sequence for postmenopausal patients consist of administration of antiestrogens, estrogen receptor antagonists, switching from a steroidal to a non-steroidal aromatase inhibitor or vice versa, or the use of high-dose progestogens.

If disease progression continues during treatment with a non-steroidal aromatase inhibitor, patients may treated with a combination of letrozole or fulvestrant with palbociclib or a combination of exemestane and everolimus.

EC


#

2.2.2  Chemotherapy for metastatic breast cancer

No.

Recommendations/
Statements

EG

LoE

Sources

5.21.

Before starting chemotherapy, the patientʼs general condition, co-morbidities and previous therapies must be evaluated and her probable compliance with treatment must be assessed.

EC

5.22.

Regular evaluations of toxicity (subjective and objective) must be carried out during therapy. Treatment doses and scheduled treatment intervals must follow generally accepted standard regimens or recently published therapy regimens. After determining suitable representative parameters (symptoms, tumor markers, imaging) prior to starting therapy, the effect of treatment must be evaluated at least every 6 – 12 weeks according to clinical requirements. Over time, the intervals between imaging procedures can be extended for patients with sustained remission and a good clinical and laboratory assessment of disease status.

EC

5.23.

Therapy should be discontinued if the patient has clinically relevant progression or toxicity is intolerable.

Patients should not change to a different chemotherapy regimen unless the patient has documented progression or toxicity is intolerable.

EC

5.24.

a) If chemotherapy is indicated, patients not in need of rapid remission should receive sequential chemotherapy.

B

1a

[253], [254]

b) A combination therapy consisting of chemotherapy and bevacizumab may improve progression-free survival as a first-line therapy, but this approach is associated with a higher rate of side effects and has no impact on overall survival.

0

1a

[255], [256], [257], [258], [259], [260]

c) Polychemotherapy or chemotherapy + bevacizumab may be administered to patients with severe symptoms and rapid tumor growth or aggressive tumor behavior, i.e. to patients who urgently require remission.

0

1a

[253], [261]

2.2.2.1  Bevacizumab for metastatic breast cancer (1st line)

In summary, higher rates of remission and an improved PFS (but no survival benefit) has been reported for additional therapy with bevacizumab, which seems to indicate that combination therapy is the appropriate treatment for patients in urgent need of remission and no combination of risk factors predisposing them to side effects (no previous history of uncontrolled arterial hypertension, cerebrovascular ischemia and deep vein thrombosis). See the long version for more details.


#

2.2.2.2  Regimens

Specific information on the regimens are available in the long version of this guideline (in German).

No.

Recommendations/
Statements

EG

LoE

Sources

5.25.

Possible monotherapies can consist of the following substances: alkylating agents, anthraquinones, anthracyclines (also in liposomal form), eribulin, fluoropyrimidine, platinum complexes, taxanes, and vinorelbine. These substances can be combined with each another or with further substances for polychemotherapy. However, patients should only be treated with combinations that have previously been investigated in trials.

EC


#
#

2.2.3  Metastatic HER2-positive breast cancer

No.

Recommendations/
Statements

EG

LoE

Sources

5.26.

Systemic therapy after R0 resection of loco-regional recurrence must be considered to prolong the disease-free interval and overall survival.

B

1a

[262], [263]

5.27.

First-line therapy for metastasized HER2-positive breast cancer should consist of a dual blockade with trastuzumab/pertuzumab and a taxane.

B

1b

[262]

5.28.

Second-line therapy for metastasized HER2-positive breast cancer should consist of therapy with T-DM1.

B

1b

[262]


#

2.2.4  Specific locations of metastases

2.2.4.1  Basic approach for distant metastasis

No.

Recommendations/
Statements

EG

LoE

Sources

5.29.

The decision whether distant metastases should be treated with surgery or local ablation should be made on an individual basis by an interdisciplinary tumor board.

EC


#

2.2.4.2  Special treatment for skeletal metastases

For the diagnosis and therapy of skeletal metastasis, please refer to the S3 guideline on Supportive Therapy for Oncology Patients (http://leitlinienprogramm-onkologie.de/Supportive-Therapie.95.0.html).

2.2.4.2.1  Indications for radiotherapy

No.

Recommendations/
Statements

EG

LoE

Sources

5.30.

Indications for local percutaneous radiotherapy for bone metastasis are:

  • local pain,

  • limited mobility,

  • reduced stability (danger of fractures),

  • s/p surgical stabilization,

  • impending or existing neurological symptoms (e.g. compression of the spinal cord).

EC

2.2.4.2.2  Indications for surgical therapy

No.

Recommendations/
Statements

EG

LoE

Sources

5.31.

Indications for the surgical therapy of osseous manifestations may be:

  • myeloid compression with neurological symptoms,

  • pathological fracture,

  • impending fracture (risk of fracture, e.g. based on Mirelsʼ scoring system, the Spinal Instability Neoplastic Scale [SINS]),

  • solitary late metastasis,

  • osteolysis which does not respond to radiotherapy,

  • pain which does not respond to treatment.

EC

2.2.4.2.3  Osteoprotective therapy

No.

Recommendations/
Statements

EG

LoE

Sources

5.32.

Osteoprotective therapy with bisphosphonates/denosumab should be carried out to prevent complications from osseous manifestations.

EC


#

2.2.4.3  Treatment for brain metastasis

No.

Recommendations/
Statements

EG

LoE

Sources

5.26.

  • Single or solitary brain metastases should be resected if the patient has an otherwise favorable prognosis and the metastasis is in a location which permits its resection, and the risk of postoperative neurological deficits resulting from resection is low. Local fractionated radiotherapy or radiosurgery of the tumor bed should be subsequently carried out.

  • Radiosurgery represents an alternative to resection for patients with single metastases if the metastases are not larger than 3 cm and there is no midline shift with symptoms of intracranial compression.

  • Primary treatment of infratentorial metastasis consists of resection, which should be carried out to prevent imminent occlusive hydrocephalus.

  • If the patient only has a limited number of brain metastases (between 2 – 4) and their total volume can be treated with targeted radiation, initial radiosurgery is preferable to whole brain radiation therapy because of the lower negative impact on neurocognition, the shorter treatment time, and the better control rates. If surgery or radiosurgery cannot be carried out because of other negative prognostic criteria, the patient must receive whole brain radiation therapy alone. Whole brain radiation therapy alone must be used to treat patients with multiple brain metastases.

  • A combination of resection or radiosurgery with whole brain radiation therapy improves the brain-specific progression-free survival compared to surgery or radiosurgery alone but does not improve overall survival. However, this approach can be considered in individual cases.

  • It is not necessary to combine whole brain radiation therapy with radiosensitizing drugs.

1b/EC

[264], [265], [266], [267], [268], [269], [270], [271], [272], [273]

No.

Recommendations/
Statements

EG

LoE

Sources

5.34.

If cerebral metastasis is present, the patient should also receive systemic therapy (chemotherapy/endocrine therapy/anti-HER2 therapy) in addition to local therapy (surgery/radiotherapy).

EC


#

2.2.4.4  Treatment for liver metastases

No.

Recommendations/
Statements

EG

LoE

Sources

5.35.

If the patient has liver metastases, resection or another form of local therapy (RFA, TACE, SBRT, SIRT) may be indicated in individual cases; the preconditions for this are:

  • no disseminated metastases

  • controlled extrahepatic metastasis

0

3b

[274], [275], [276], [277], [278], [279], [280], [281], [282], [283], [284], [285]


#

2.2.4.5  Treatment for lung metastases

No.

Recommendations/
Statements

EG

LoE

Sources

5.36.

Resection or another local therapy (RFA, stereotactic radiotherapy) may be indicated to treat individual patients with lung metastases; the preconditions for this are:

  • no disseminated metastases

  • controlled extrapulmonary metastasis

0

4

[286], [287], [288], [289], [290]

2.2.4.5.1  Malignant pleural effusion

No.

Recommendations/
Statements

EG

LoE

Sources

5.37.

Patients with pleural carcinosis and symptomatic pleural effusions must be offered pleurodesis.

A

1a

[291]


#

2.2.4.6  Skin and soft tissue metastasis

No.

Recommendations/
Statements

EG

LoE

Sources

5.34.

Surgical excision or another form of local therapy (e.g. radiotherapy) can be considered to treat skin and soft tissue metastasis.

EC


#
#
#
#
#
Guideline Program

Editors


Leading Professional Medical Associations

Zoom Image

German Society of Gynecology and Obstetrics
(Deutsche Gesellschaft für Gynäkologie und Geburtshilfe e.V. [DGGG])


Head Office of DGGG and Professional Societies


Hausvogteiplatz 12, DE-10117 Berlin


info@dggg.de


http://www.dggg.de/



President of DGGG


Prof. Dr. Anton Scharl


Direktor der Frauenkliniken


Klinikum St. Marien Amberg


Mariahilfbergweg 7, DE-92224 Amberg


Kliniken Nordoberpfalz AG


Söllnerstraße 16, DE-92637 Weiden



DGGG Guidelines Representatives


Prof. Dr. med. Matthias W. Beckmann


Universitätsklinikum Erlangen, Frauenklinik


Universitätsstraße 21–23, DE-91054 Erlangen


Prof. Dr. med. Erich-Franz Solomayer


Universitätsklinikum des Saarlandes


Geburtshilfe und Reproduktionsmedizin


Kirrberger Straße, Gebäude 9, DE-66421 Homburg



Guidelines Coordination


Dr. med. Paul Gaß, Christina Meixner


Universitätsklinikum Erlangen, Frauenklinik


Universitätsstraße 21–23, DE-91054 Erlangen


fk-dggg-leitlinien@uk-erlangen.de


http://www.dggg.de/leitlinienstellungnahmen

Zoom Image

Austrian Society of Gynecology and Obstetrics
(Österreichische Gesellschaft für Gynäkologie und Geburtshilfe [OEGGG])


Innrain 66A, AT-6020 Innsbruck


stephanie.leutgeb@oeggg.at


http://www.oeggg.at



President of OEGGG


Prof. Dr. med. Petra Kohlberger


Universitätsklinik für Frauenheilkunde Wien


Währinger Gürtel 18–20, AT-1180 Wien



OEGGG Guidelines Representatives


Prof. Dr. med. Karl Tamussino


Universitätsklinik für Frauenheilkunde und Geburtshilfe Graz


Auenbruggerplatz 14, AT-8036 Graz



Prof. Dr. med. Hanns Helmer


Universitätsklinik für Frauenheilkunde Wien


Währinger Gürtel 18–20, AT-1090 Wien

Zoom Image

Swiss Society of Gynecology and Obstetrics
(Schweizerische Gesellschaft für Gynäkologie und Geburtshilfe [SGGG])


Gynécologie Suisse SGGG


Altenbergstraße 29, Postfach 6, CH-3000 Bern 8


sekretariat@sggg.ch


http://www.sggg.ch/



President of SGGG


Dr. med. David Ehm


FMH für Geburtshilfe und Gynäkologie


Nägeligasse 13, CH-3011 Bern



SGGG Guidelines Representatives


Prof. Dr. med. Daniel Surbek


Universitätsklinik für Frauenheilkunde


Geburtshilfe und feto-maternale Medizin


Inselspital Bern


Effingerstraße 102, CH-3010 Bern



Prof. Dr. med. René Hornung


Kantonsspital St. Gallen, Frauenklinik


Rorschacher Straße 95, CH-9007 St. Gallen


#

Conflict of Interest/Interessenkonflikt

See/Siehe https://www.leitlinienprogramm-onkologie.de/leitlinien/mammakarzinom/

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Correspondence/Korrespondenzadresse

Prof. Dr. med. Achim Wöckel
Frauenklinik und Poliklinik
Universitätsklinikum Würzburg
Josef-Schneider-Straße 4
97080 Würzburg
Germany   

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