Long-term results of neoadjuvant hormonal therapy prior to radical prostatectomy in patients with clinically localized prostate cancer: biochemical and pathological effects.
The objective of this study was to evaluate the long-term biochemical and pathological effects induced by neoadjuvant hormonal therapy (NHT) in patients with clinically localized disease. Between March 1993 and May 1997, 24 patients with clinically localized prostate cancer received NHT for 3 to 11 months (median: 5 months) using luteinizing hormone-releasing hormone analogue prior to radical prostatectomy and pelvic lymphadenectomy. The clinical stage was T1 in 1 patient, T2 in 17 and T3 in 6, the pretreatment serum prostate-specific antigen (PSA) value was < or = 10 ng/ml in 5 patients, 10 to 20 ng/ml in 4 and > 20 ng/ml in 15 (mean: 34.7 micrograms/l), and the Gleason score was < or = 4 in 9 patients, 5 to 7 in 11 and > 8 in 3. The mean prostate specific antigen (PSA) value 3 months after NHT had reduced below 2 ng/ml in 18 of the 24 patients (67%), and finally decreased by an average of 95% (i.e., 1.9 ng/ml) prior to surgery. The pathological stage was pT0 in 2 patients, pT2 in 10 and pT3 in 12. The incidence of organ-confined disease (OCD) was significantly higher in patients with clinical stage T1 or T2a than with T2b or T3, with pretreatment PSA values < or = 10 ng/ml than with PSA values > 10 ng/ml, and with PSA values < or = 2 than with PSA values > 2 at 3 months after NHT; in contrast, the Gleason score had no significant impact on the rate of OCD. After a median follow-up of 49 months (range 34 to 85 months), 6 patients (25%) had a recurrence evidenced by rising PSA, and the 3-year recurrence-free survival rate was 79%. These results suggest that NHT appears not to be of significant additional benefit to patients who have a higher clinical T stage, higher pretreatment PSA values and/or in patients whose PSA values do not normalize early in the treatment process.
Hara
I
I
Department of Urology, Kobe University School of Medicine.
Miyake
H
H
Hara
S
S
Gotoh
A
A
Eto
H
H
Arakawa
S
S
Kamidono
S
S
D000368:Aged; D018931:Antineoplastic Agents, Hormonal / Q000627:therapeutic use*; D007987:Gonadotropin-Releasing Hormone / Q000819:agonists*; D006801:Humans; D008297:Male; D008875:Middle Aged; D020360:Neoadjuvant Therapy; D009367:Neoplasm Staging; D011468:Prostatectomy; D011471:Prostatic Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D015996:Survival Rate
D018931:Antineoplastic Agents, Hormonal; D007987:Gonadotropin-Releasing Hormone