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Efficacy and Safety of Daily Tadalafil in Men with Erectile Dysfunction Previously Unresponsive to On-Demand Tadalafil

McMahon, Chris·2004·The Journal of Sexual Medicine

Abstract

Objective: To assess the efficacy and safety of daily tadalafil, a potent selective phosphodiesterase 5 inhibitor, for the treatment of erectile dysfunction (ED) in men previously unresponsive to on-demand tadalafil. Materials and Methods: A total of 112 men with a mean age of 63 (range 21–79) and moderate to severe ED of various aetiologies were treated with tadalafil, taken on a daily basis at flexible daily doses of 10 and 20 mg for 12 weeks. The three primary outcomes were changes from the pretreatment and on-demand tadalafil baseline in the erectile function domain of the International Index of Erectile Function and the proportion of yes responses to questions 2 and 3 of the Sexual Encounter Profile. Additional efficacy instruments included a Global Assessment Question administered at completion of the study. Results: Compared with pretreatment and on-demand tadalafil baseline, daily dosed tadalafil significantly enhanced all efficacy outcome variables. Patients receiving daily tadalafil (10 mg) experienced a significant mean improvement of 12.8 and 8.2 in the International Index of Erectile Function erectile function domain score from baseline (P < 0.001) and from on-demand tadalafil, respectively (P < 0.001). Fifty-eight percent of intercourse attempts (Sexual Encounter Profile question 3) were successfully completed (P < 0.001 vs. pretreatment baseline, P < 0.001 vs. on-demand tadalafil). Improved erections at end point were reported by 69% of men compared with 42% of men with on-demand tadalafil. Daily tadalafil was well tolerated with headache, dyspepsia, and facial flushing as the most frequent adverse events. Conclusion: Daily tadalafil (10/20 mg) was effective and well tolerated in this study population and is an effective salvage for previous on-demand tadalafil nonresponders.

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  1. Virag, 1985, Is impotence an arterial disorder? A study of arterial risk factors in 440 impotent men, Lancet, 1, 181, 10.1016/S0140-6736(85)92023-9 · DOI · Paper page
  2. Jensen, 1999, The prevalence and etiology of impotence in 101 male hypertensive outpatients, Am J Hypertens, 12, 271, 10.1016/S0895-7061(98)00225-8 · DOI
  3. Azadzoi, 1991, Hypercholesterolemia impairs endothelium-dependent relaxation of rabbit corpus cavernosum smooth muscle, J Urol, 146, 238, 10.1016/S0022-5347(17)37759-5 · DOI
  4. Azadzoi, 1992, Erectile dysfunction due to atherosclerotic vascular disease: The development of an animal model, J Urol, 147, 1675, 10.1016/S0022-5347(17)37676-0 · DOI
  5. Saenz de Tejada, 1989, Impaired neurogenic and endothelium-mediated relaxation of penile smooth muscle from diabetic men with impotence, N Engl J Med, 320, 1025, 10.1056/NEJM198904203201601 · DOI
  6. Kaiser, 2004, Impaired brachial artery endothelium-dependent and -independent vasodilation in men with erectile dysfunction and no other clinical cardiovascular disease, J Am Coll Cardiol, 43, 179, 10.1016/j.jacc.2003.07.042 · DOI
  7. Brock, 2002, Efficacy and safety of tadalafil for the treatment of erectile dysfunction: Results of integrated analyses, J Urol, 168, 1332, 10.1016/S0022-5347(05)64442-4 · DOI · Paper page
  8. Porst, 2003, Efficacy of tadalafil for the treatment of erectile dysfunction at 24 and 36 hours after dosing: A randomized controlled trial, Urology, 62, 121, 10.1016/S0090-4295(03)00359-5 · DOI · Paper page
  9. Atiemo, 2003, Salvage of sildenafil failures referred from primary care physicians, J Urol, 170, 2356, 10.1097/01.ju.0000096221.67967.ae · DOI
  10. McMahon, 2002, High dose sildenafil citrate as a salvage therapy for severe erectile dysfunction, Int J Impot Res, 14, 533, 10.1038/sj.ijir.3900936 · DOI
  11. McMahon, 1999, Treatment of intracorporeal injection nonresponse with sildenafil alone or in combination with triple agent intracorporeal injection therapy, J Urol, 162, 1992, 10.1016/S0022-5347(05)68085-8 · DOI
  12. Mydlo, 2000, Initial results utilizing combination therapy for patients with a suboptimal response to either alprostadil or sildenafil monotherapy, Eur Urol, 38, 30, 10.1159/000020248 · DOI
  13. Saenz de Tejada, 2002, Effects of tadalafil on erectile dysfunction in men with diabetes, Diabetes Care, 25, 2159, 10.2337/diacare.25.12.2159 · DOI · Paper page
  14. Rendell, 1999, Sildenafil for treatment of erectile dysfunction in men with diabetes: A randomized controlled trial, JAMA, 281, 421, 10.1001/jama.281.5.421 · DOI
  15. Stuckey, 2003, Sildenafil citrate for treatment of erectile dysfunction in men with type 1 diabetes: Results of a randomized controlled trial, Diabetes Care, 26, 279, 10.2337/diacare.26.2.279 · DOI
  16. Goldstein, 2003, Vardenafil, a new phosphodiesterase type 5 inhibitor, in the treatment of erectile dysfunction in men with diabetes: A multicenter double-blind placebo-controlled fixed-dose study, Diabetes Care, 26, 777, 10.2337/diacare.26.3.777 · DOI
  17. Emmick, 2002, Overview of the cardiovascular effects of tadalafil, Eur Heart J, 4, H32, 10.1016/S1520-765X(02)90050-7 · DOI
  18. Aranda, 2004, Erectile dysfunction in essential arterial hypertension and effects of sildenafil: Results of a Spanish national study, Am J Hypertens, 17, 139, 10.1016/j.amjhyper.2003.09.006 · DOI
  19. Steers, 1998, Sildenafil (Viagra) is effective in the treatment of severe male erectile dysfunction, Int J Impot Res, 10, S49
  20. Brock, 2003, Safety and efficacy of vardenafil for the treatment of men with erectile dysfunction after radical retropubic prostatectomy, J Urol, 170, 1278, 10.1097/01.ju.0000086947.00547.49 · DOI
  21. Lowentritt, 1999, Sildenafil citrate after radical retropubic prostatectomy, J Urol, 162, 1614, 10.1016/S0022-5347(05)68179-7 · DOI
  22. Hong, 1999, Time dependent patient satisfaction with sildenafil for erectile dysfunction (ED) after nerve-sparing radical retropubic prostatectomy (RRP), Int J Impot Res, 11, S15, 10.1038/sj.ijir.3900466 · DOI
  23. Anderson, 1991, Cardiovascular disease risk profiles, Am Heart J, 121, 293, 10.1016/0002-8703(91)90861-B · DOI · Paper page
  24. DeBusk, 2000, Management of sexual dysfunction in patients with cardiovascular disease: Recommendations of the Princeton Consensus Panel, Am J Cardiol, 86, 175, 10.1016/S0002-9149(00)00896-1 · DOI · Paper page
  25. El-Galley, 2001, Long-term efficacy of sildenafil and tachyphylaxis effect, J Urol, 166, 927, 10.1016/S0022-5347(05)65866-1 · DOI
  26. Steers, 2001, Assessment of the efficacy and safety of Viagra (sildenafil citrate) in men with erectile dysfunction during long-term treatment, Int J Impot Res, 13, 261, 10.1038/sj.ijir.3900714 · DOI
  27. Moreland, 1999, Sildenafil citrate, a selective phosphodiesterase type 5 inhibitor, Trends Endocrinol Metab, 10, 97, 10.1016/S1043-2760(98)00127-1 · DOI
  28. Gonzalez, 1999, Sildenafil causes a dose- and time-dependent downregulation of phosphodiesterase type 6 expression in the rat retina, Int J Impot Res, 11, S9, 10.1038/sj.ijir.3900465 · DOI
  29. Lin, 2002, Human PDE5A gene encodes three PDE5 isoforms from two alternate promoters, Int J Impot Res, 14, 15, 10.1038/sj.ijir.3900802 · DOI
  30. Lin, 2003, Up and down-regulation of phosphodiesterase-5 as related to tachyphylaxis and priapism, J Urol, 170, S15, 10.1097/01.ju.0000075500.11519.e8 · DOI
  31. Ferrini, 2004, Long-term treatment with high doses of sildenafil does not up-regulate the levels of phosphodiesterase 5 (PDE5) in the rat penis, J Urol, 171, 424, 10.1016/S0022-5347(18)38816-5 · DOI
  32. Behr-Roussel, 2004, Chronic sildenafil enhances erectile responses and endothelium-dependent corporal relaxations of normal rats: Lack of tachyphylaxis, J Urol, 171, 425, 10.1016/S0022-5347(18)38819-0 · DOI
  33. Halcox, 2002, The effect of sildenafil on human vascular function, platelet activation, and myocardial ischemia, J Am Coll Cardiol, 40, 1232, 10.1016/S0735-1097(02)02139-3 · DOI · Paper page
  34. Desouza, 2002, Acute and prolonged effects of sildenafil on brachial artery flow-mediated dilatation in type 2 diabetes, Diabetes Care, 25, 1336, 10.2337/diacare.25.8.1336 · DOI
  35. Kimura, 2003, PDE5 inhibitor sildenafil citrate augments endothelium-dependent vasodilation in smokers, Hypertension, 41, 1106, 10.1161/01.HYP.0000068202.42431.CC · DOI
  36. Katz, 2000, Acute type 5 phosphodiesterase inhibition with sildenafil enhances flow-mediated vasodilation in patients with chronic heart failure, J Am Coll Cardiol, 36, 845, 10.1016/S0735-1097(00)00790-7 · DOI · Paper page

Cited by

Metadata

Authors
McMahon, C.
Venue
The Journal of Sexual Medicine
Published
2004-11-01
Volume
1
Issue
3
Pages
292-300
ISSN
  • 1743-6109
  • 1743-6095
Cited by
98
References
5
Language
en

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