Combined androgen blockade is the treatment of choice for patients with advanced prostate cancer: the argument for.
Combined androgen blockade (CAB) is becoming standard treatment for patients with newly diagnosed advanced prostate cancer. This statement is based on the outcome and long-term evaluation of patients treated in prospective randomised trials. Particularly, patients with 'good' prognostic signs at the time of diagnosis benefit most from this approach. Patients with metastatic prostate cancer treated with CAB can be stratified on the basis of clinical prognostic parameters such as performance status, the presence or absence of pain, the levels of alkaline phosphatase, and the levels of prostate-specific antigen (PSA) during the first months of CAB: for combined androgen deprivation, if they fall in the good prognostic category (+/- 30-35% of the patients); for surgical castration and palliative treatment or (experimental) cytotoxic therapy if they belong to the poor prognostic category (+/- 20% of the patients), and, for initial CAB during the first 3-6 months of therapy, followed by an evaluation of the regression of PSA under therapy. If PSA normalises (rapidly) during this period, patients could be considered as good prognostic candidates and continue CAB. If PSA does not decrease or normalise sufficiently, patients might be classified as belonging to the poor prognostic category and should be treated with palliative measures and/or experimental cytotoxic therapy after (surgical) castration.
Debruyne
F M
FM
Department of Urology, University Hospital Nijmegen, The Netherlands.
D000469:Alkaline Phosphatase / Q000097:blood; D000726:Androgen Antagonists / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D001859:Bone Neoplasms / Q000556:secondary; D017024:Chemotherapy, Adjuvant; D006801:Humans; D008297:Male; D015201:Meta-Analysis as Topic; D009919:Orchiectomy; D011379:Prognosis; D017430:Prostate-Specific Antigen / Q000097:blood; D011471:Prostatic Neoplasms / Q000188:drug therapy* / Q000473:pathology / Q000601:surgery; D016032:Randomized Controlled Trials as Topic; D012307:Risk Factors
D000726:Androgen Antagonists; D000469:Alkaline Phosphatase; D017430:Prostate-Specific Antigen