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Eur Urol. 1998 Sep;34(3):169-75.

Sustained-release alfuzosin, finasteride and the combination of both in the treatment of benign prostatic hyperplasia. European ALFIN Study Group.

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  • 1Department of Urology, University Hospital Nijmegen, The Netherlands.



To assess the additive benefit of combining an alpha1-blocker and a 5alpha-reductase inhibitor.


This European, randomized, double-blind, multicenter trial involved 1.051 patients with lower urinary tract symptoms related to benign prostatic hyperplasia. Patients received sustained release (SR) alfuzosin (n = 358), a selective alpha1-blocker given at a dose of 5 mg twice daily without dose titration; finasteride (n = 344), 5 mg once daily, or both drugs (n = 349), for 6 months. Primary efficacy criteria were symptomatic improvement (International Prostate Symptom Score: I-PSS) and maximum flow rate (Qmax). Safety was assessed by monitoring adverse events.


Symptomatic improvement was significantly higher from the 1st month of treatment with SR alfuzosin, alone or in combination; mean changes in I-PSS versus baseline at end-point were -6.3 and -6.1, respectively, compared with -5.2 with finasteride alone (SR alfuzosin vs. finasteride, p = 0.01; combination vs. finasteride, p = 0.03). The percentages of patients with a decrease in I-PSS of at least 50% were 43, 42 and 33% for SR alfuzosin, the combination and finasteride, respectively (SR alfuzosin vs. finasteride, p = 0.008; combination vs. finasteride, p = 0.009). In the overall population, increases in Qmax were greater with SR alfuzosin and the combination, compared with finasteride alone after 1 month of therapy, but changes at end-point were similar in the three treatment groups. In those 47% of patients likely to be obstructed (baseline Qmax <10 ml/s), however, mean increases in Qmax were significantly higher with SR alfuzosin, alone or in combination, whatever the visit. Finasteride, alone or in combination, significantly impaired sexual function. The incidence of postural symptoms was low and similar in the three treatment groups.


In this 6-month trial, SR alfuzosin was more effective than finasteride, with no additional benefit in combining both drugs.

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