Recently reported data from the German ZORO trial and the Italian PROMISE-GIM6 trial have come to different conclusions. The AGO Breast Commission does not recommend the general use of luteinizing hormone-releasing hormone (LHRH) analogues for the preservation of ovarian function. Instead, we distinguish between patients with hormone receptor-negative and hormone receptor-positive disease. This article reviews the AGO recommendations in light of the ZORO and PROMISEGIM6 data. In conclusion, separate recommendations are needed for the prevention of ovarian failure and for fertility preservation because the trials did not investigate fertility rate as a primary outcome measure. The results from not yet published trials such as OPTION and POEM may shed new light on the role of LHRH analogues.

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