A recent study reported a detrimental effect of phosphodiesterase type 5 inhibitors (PDE5-Is) on biochemical recurrence (BCR) after radical prostatectomy (RP) for prostate cancer (PCa).
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We tested the association between PDE5-I use, PDE5-I therapy scheme, number of PDE5-I pills taken, and BCR in 2579 patients treated with bilateral nerve-sparing RP for PCa between 2004 and 2013 at a single center. Patients were categorized according to PDE5-I use within 2 yr after surgery as on demand, rehabilitation schedule (daily PDE5-I use for at least 3 mo), and no PDE5-I use. Multivariable (MVA) Cox regression models tested the association between PDE5-I and BCR. The same analyses were repeated using the number of PDE5-I pills taken by each patient. Overall, 674 patients (26.1%) received PDE5-Is. At MVA analysis, PDE5-I use, type of administration schedule, and number of PDE5-I pills were not significantly associated with higher risk of BCR (all p ≥ 0.2) after accounting for multiple confounders including time from RP to PDE5-I use. While awaiting further studies, patients should not be denied PDE5-I treatment after RP.
PATIENT SUMMARY: Among patients treated with radical prostatectomy, phosphodiesterase type 5 inhibitor use was not associated with an increased risk of biochemical recurrence, regardless of the therapeutic regimen used.
Gallina A, Bianchi M, Gandaglia G, Cucchiara V, Suardi N, Montorsi F, Briganti A. Are you the author?
Division of Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy.
Reference: Eur Urol. 2015 Feb 17. pii: S0302-2838(15)00077-9.