Abstract:
:To estimate the growth rate of prostate cancer, the doubling times of prostate-specific antigen (PSA) and prostatic acid phosphatase (PAP) were determined in 51 patients: 44 were refractory to endocrine therapy, and 7 were in an untreated state. Since an exponential increase in PSA and PAP was observed in all patients, the doubling time was calculated from a semilogarithmic plot of the respective markers. PSA doubling time was almost identical with that of PAP. The tumor marker doubling time in untreated patients was approximately 10 times greater than that in the patients who were refractory to endocrine therapy. In endocrine refractory patients, the tumor marker doubling time in patients who showed deterioration of bone lesions was less than that in patients with local regrowth and/or lymph node metastasis. The prognosis of endocrine refractory patients from the time showing tumor marker failure was examined. The group showing the longest time (> 80 days) had better prognosis than that shown by the other groups with shorter doubling times. It is concluded that the determination of tumor marker doubling time is of value for measuring the growth rates of prostate cancer, and for assessing prognosis after relapse.
journal_name
Eur Uroljournal_title
European urologyauthors
Akimoto S,Masai M,Akakura K,Shimazaki Jdoi
10.1159/000475162subject
Has Abstractpub_date
1995-01-01 00:00:00pages
207-12issue
3eissn
0302-2838issn
1873-7560journal_volume
27pub_type
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