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A Journal on Nephrology and Urology

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Minerva Urologica e Nefrologica 2000 March;52(1):1-6

language: English

Intermittent Androgen Deprivation (IAD) in patients with localized prostate cancer and a biochemical progression after radical prostatectomy

Sciarra A., Di Chiro C., Voria G., Colella D., Loreto A., Pastore A. L., Di Silverio F.

From the Department of Urology “U. Bracci” University “La Sapienza”, Rome


Background. To analyze the modifications in serum PSA levels during IAD in patients with an initial PSA progression after radical retropubic prostatectomy (RRP).
Methods. Between February 1994 and May 1996, 34 consecutive patients with an initial PSA progression (> 0.4 ng/ml) after RRP were selected. All men had localized adenocarcinoma of the prostate, stage pT2 pN0 M0. Patients were offered IAD when PSA progressed over 0.4 ng/ml. The initial treatment period with complete androgen deprivation (CAD) lasted 24 weeks in all cases. After, an acceptable nadir PSA level was considered to be a value ≤ 0.4 ng/ml. CAD was then with held until serum PSA increased to a value over 0.4 ng/ml.
Results. Follow-up ranges from 144 to 228 weeks. The median time for the first 5 treatment cycles was 32, 24, 28, 32 and 32 weeks respectively, with a median time “off” therapy that increased from 8 weeks (first cycle) to 22 weeks (fifth cycle). The median nadir PSA value during “on” treatment period was 0.20 ng/ml in all 5 cycles. So far, in none of the patients did a serum PSA fail to decrease during “on” treatment period.
Conclusions. We suggest that IAD may be an effective therapy in patients with an initial PSA progression after RRP. However, large prospective studies are needed to confirm these results and to better understand the meaning of PSA variations.

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