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S3-Leitlinie: Endokrine Therapie des primären Mammakarzinoms

S3 guideline: endocrine therapy of primary breast cancer

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Zusammenfassung

Die endokrine Therapie gehört zu den wirkungsvollsten zielgerichteten Therapiemaßnahmen in der adjuvanten Behandlung des Mammakarzinoms. Die Therapiedauer beträgt in der initialen adjuvanten Therapie (IAT) 5 Jahre, sie kann bei adäquatem Rückfallrisiko durch die erweiterte endokrine Therapie (EAT) um weitere 5 Jahre (Jahr 6–10) verlängert werden. Patientinnen mit positivem Hormonrezeptorstatus (ER [Östrogenrezeptor] und/oder PR [Progesteronrezeptor]) des Primärtumors sollten eine endokrine Therapie erhalten. In der Prämenopause stellt eine 5‑jährige Behandlung mit Tamoxifen (bei Kontraindikation gegen Tamoxifen ersetzt durch ein GnRHa [„gonadotropin releasing hormone analogues“]) den Therapiestandard dar. Nur bei einem erhöhten Rückfallrisiko, bei bestehender Ovarialfunktion, einem Alter unter 35 Jahren und nach einer adjuvanten Chemotherapie sollten Tamoxifen bzw. bei Kontraindikation gegen Tamoxifen ein Aromatasehemmer (AI) in Kombination mit GnRHa gegeben werden. Bei postmenopausalen Patientinnen kann die Therapie entweder mit einem AI über 5 Jahre (besonders bei high-risk Patientinnen und Patientinnen mit einem lobulären invasiven Mammakarzinom, dann für 5 Jahre) begonnen werden, alternativ kann eine klassische oder inverse Sequenztherapie mit Tamoxifen und AI durchgeführt werden. Die EAT kann mit Tamoxifen, oder beim Eintritt der Menopause, mit einem AI für 2–5 Jahre ergänzt werden. Ist eine adjuvante Chemotherapie indiziert, so erfolgt die adjuvante endokrine Therapie nach Abschluss der Chemotherapie. Grundsätzlich kann die endokrine Therapie gleichzeitig mit der Strahlentherapie der Brust erfolgen.

Abstract

Endocrine therapy is the most effective targeted treatment option in the adjuvant setting for endocrine responsive breast cancer. In general, the duration of treatment with initial adjuvant therapy (IAT) is 5 years. In the case of increased risk of recurrence, it can be extended for 6–10 years as extended adjuvant therapy (EAT). Patients with a positive hormone receptor status for estrogen and/or progesterone receptors (ER and/or PR) of the primary tumor are candidates for this treatment and should be offered this therapy. In premenopausal women tamoxifen treatment, which in the case of contraindications is replaced by gonadotropin releasing hormone analogues (GnRHa), for 5 years is the standard of care (SoC). Only in the case of increased risk of relapse, with continued ovarian function, an age younger than 35 years and after adjuvant chemotherapy should tamoxifen or if contraindicated an aromatase inhibitor in combination with GnRHa be given. An EAT with tamoxifen can be extended to 10 years in the case of increased risk of recurrence. In postmenopausal patients endocrine adjuvant therapy consists of an aromatase inhibitor for 5 years, especially in high-risk patients with a lobular invasive breast cancer, alternatively a classical or inverse sequence therapy combining tamoxifen followed by an aromatase inhibitor can be carried out. The EAT can be extended with tamoxifen for 2‑5 years or an aromatase inhibitor when the menopause has begun. If an adjuvant chemotherapy is indicated, the endocrine therapy is subsequently initiated. In principal endocrine treatment can be carried in parallel to radiotherapy of the breast.

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Correspondence to C. Jackisch.

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C. Jackisch und J.-U. Blohmer geben an, dass kein Interessenkonflikt besteht.

Dieser Beitrag beinhaltet keine von den Autoren durchgeführten Studien an Menschen oder Tieren.

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A. Wöckel, Würzburg

R. Kreienberg, Mainz

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Jackisch, C., Blohmer, JU. S3-Leitlinie: Endokrine Therapie des primären Mammakarzinoms. Gynäkologe 51, 548–555 (2018). https://doi.org/10.1007/s00129-018-4276-7

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  • DOI: https://doi.org/10.1007/s00129-018-4276-7

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