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06.12.2018 | Review | Ausgabe 6/2019

World Journal of Urology 6/2019

Comparative efficacy and safety of phosphodiesterase type 5 inhibitors for erectile dysfunction in diabetic men: a Bayesian network meta-analysis of randomized controlled trials

World Journal of Urology > Ausgabe 6/2019
Xinyang Liao, Shi Qiu, Yige Bao, Wanyu Wang, Lu Yang, Qiang Wei
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00345-018-2583-1) contains supplementary material, which is available to authorized users.
Xinyang Liao, Shi Qiu and Yige Bao contributed equally as first authors of this manuscript.



To compare the efficacy and safety profiles of different phosphodiesterase-5 inhibitors (PDE5Is) administrations for erectile dysfunction (ED) in diabetic men, including on-demand (PRN) and regular regimens (OAD).

Materials and methods

Searches were carried out in four electronic databases: PubMed (until April 17th, 2017); Scopus (until April 17th, 2017); Embase (until April 17th, 2017); and Cochrane (until April 18th, 2017). The outcomes for this study are as follows: (1) Global Assessment Question (GAQ) positive response rate; (2) changes from baseline to the end of the study in Erectile Function Domain of International Index of Erectile Function (IIEF-EF); and (3) treatment-related adverse events (TRAEs). The comparative effects of PDE5I regimens were analyzed with random-effect models in a Bayesian Framework using the GeMTC R package.


We identified 1056 records, of which 15 randomized trials with 5274 patients were included. The included studies covered eight kinds of PDE5I administration: avanafil PRN; mirodenafil PRN; sildenafil PRN; tadalafil PRN; tadalafil OAD; udenafil PRN; udenafil OAD; vardenafil PRN; and placebo. In surface under the cumulative ranking curve analysis, vardenafil PRN ranked first, third and first, and mirodenafil PRN ranked second, first and second in GAQ, IIEF-EF, and TRAEs, respectively.


PDE5I administrations were generally efficient and well-tolerated in diabetic men. Among these administrations, vardenafil PRN and mirodenafil PRN seem to have a possible advantage of efficacy and avoiding adverse effects compared to others. There is no significant difference between regular and on-demand regimens of PDE5Is.

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