Abstract:
BACKGROUND:The majority of patients with localized and some cases of locally advanced prostate cancer undergo radical prostatectomy. However, radical prostatectomy cannot always be selected for those patients. In this situation, primary hormone therapy is an alternative treatment option. We have designed a prospective randomized study of the effects of primary hormone therapy for such patients. METHODS:A total of 151 patients with T1b, T1c, T2a, T2b or T3a prostate cancer who were not scheduled for radical prostatectomy were enrolled into this study. Patients were randomly allocated into two groups; Group I received luteinizing hormone-releasing hormone (LH-RH) agonist monotherapy (leuprorelin acetate depot, 3.75 mg monthly) and Group II received LH-RH agonist in combination with chlormadinone acetate (100 mg/day). Effects on serum prostate-specific antigen level, progression-free survival and survival were observed for 2 years. RESULTS:The reasons why radical prostatectomy was not scheduled were poor risk for surgery (38%), patient's wish (32%) and physician's recommendation (30%). After 12 weeks of treatment, 49% of the patients in both groups showed a complete response (CR). Of the patients showing a partial response (PR) after 12 weeks of treatment, 25% in Group I and 52% in Group II improved to CR 1 year later (p<0.05). Group II showed a longer progression-free survival (p <0.05). Progression-free survival rates were 62% (Group I) and 91% (Group II) in T2b patients and 43% (Group I) and 73% (Group II) in T3 patients. Only one patient in each group died from prostate cancer. CONCLUSIONS:Early primary hormone therapy is a reasonable treatment option for localized or locally advanced prostate cancer patients if radical prostatectomy was not scheduled. Chlormadinone acetate showed an additive effect with LH-RH agonist, at least in 2 years' observation.
journal_name
Jpn J Clin Oncoljournal_title
Japanese journal of clinical oncologyauthors
Akaza H,Homma Y,Okada K,Yokoyama M,Moriyama N,Usami M,Hirao Y,Tsushima T,Ohashi Y,Aso Ydoi
10.1093/jjco/hyd035keywords:
subject
Has Abstractpub_date
2000-03-01 00:00:00pages
131-6issue
3eissn
0368-2811issn
1465-3621journal_volume
30pub_type
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