Opnåelse af et kastratniveau af testosteron er et acceptabelt surrogat- endepunkt ved hormonfølsom fremskreden prostatacancer og resulterer i mindskelse af smerter fra knoglemetastaser, bedre urinflow og undertiden langsommere progression af tumor, dog uden at en fordel i form af klart bedre overlevelse er påvist.
The achievement of castrate levels of testosterone is an acceptable surrogate endpoint in hormone sensitive advanced prostate cancer which can be translated into less pain from bone metastases, improvement in urinary flow, and in some cases slowing of tumour progression, although a clear-cut survival benefit has not been demonstrated.