M. Haggman et al., NEOADJUVANT GNRH-AGONIST TREATMENT (TRIPTORELIN AND CYPROTERONE-ACETATE FOR FLARE PROTECTION) AND TOTAL PROSTATECTOMY, European urology, 24(4), 1993, pp. 456-460
The effects of 3 months treatment with the GnRH agonist triptorelin as
a neoadjuvant to total prostatectomy in 40 men with localized prostat
ic cancer have been evaluated. The study included 1 patient with a sta
ge T-1b tumour, 25 patients with stage T-2 tumours and 14 with stage T
-3 tumours. The patients were examined by digital rectal examination,
transrectal ultrasound before and after treatment. Serum testosterone
and prostate-specific antigen (PSA) levels were followed. The totally
removed prostate gland was step-sectioned at 5-mm intervals and the wh
ole-mount sections were assessed for tumour pathology stage (pT stage)
. Triptorelin treatment resulted in a significant decrease in total gl
and and tumour volume and in a reduction in the serum levels of PSA an
d testosterone. In comparison with the findings from a previous study,
in which neoadjuvant treatment was not used, it appears that the prop
ortion of tumours invading the margins of the surgical specimen decrea
sed.