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Study shows PDE5 inhibitor more effective when used on demand in erectile dysfunction
August 27, 2008European Urology (www.europeanurology.com), the official journal of the European Association of Urology will be featuring the article 'Effect of nightly versus on-demand vardenafil on recovery of erectile function in men following bilateral nerve-sparing radical prostatectomy' by F. Montorsi et al.in the October issue, showing for the first time that vardenafil, a PDE5 inhibitor, is more efficacious when used on-demand in men with erectile dysfunction, supporting a shift towards on-demand dosing with PDE5 inhibitors in this patient group. 87 centres across Europe, the US, Canada and South Africa participated between December 2004 and September 2007.
Nerve-sparing radical prostatectomy (NSRP) is the gold-standard therapy for prostate cancer in men with a life expectancy of 10 years or more. The risk of erectile dysfunction (ED) following NSRP is significant. This is caused by neuropraxia - the usually temporary failure of nerve conduction in the absence of structural changes due to compression, ischemia or blunt injury - which inevitably occurs during the procedure. Ultimately this may lead to the development of fibrosis within the corpus cavernosa and cause ED.
To prevent the onset of postoperative ED, the use of phosphodiesterase type 5 (PDE5) inhibitors was introduced. These agents prevent the breakdown of cyclic guanosine monophosphate in cavernosal tissue, which plays a role in the prevention of cell death and fibrosis, and may thus exert a protective effect on cavernosal smooth muscle.
Participants were recruited to this first robustly designed, evidence-based, multi-centre study approximately one month before they were scheduled to undergo NSRP. A total of 423 patients completed the study. The inclusion of the on-demand dosing regimen enabled comparison of the currently recommended guidelines for the use of PDE5 inhibitors with a proposed nightly dosing regimen, which was suggested to have potential positive effects on erectile function. The results clearly show that nightly dosing with vardenafil does not have any effect beyond that of on-demand use.
The study shows that on-demand use of vardenafil during the treatment period was associated with significantly greater erectile function and sexual intercourse completion rates compared to placebo. The success rates for the vardenafil on-demand group were also higher than for the nightly group. These data indicate that the use of on-demand vardenafil is of greater benefit than nightly treatment in patients following NSRP surgery and, in general, support the on-demand use of PDE5 inhibitors following NSRP surgery over a daily dosing regimen. This prompts reconsideration of the current practice of prescribing nightly PDE5 inhibitor therapy, as on-demand use of vardenafil is equally effective in men with ED following NSRP, a notoriously difficult-to-treat patient population.
Elsevier
Participants were recruited to this first robustly designed, evidence-based, multi-centre study approximately one month before they were scheduled to undergo NSRP. A total of 423 patients completed the study. The inclusion of the on-demand dosing regimen enabled comparison of the currently recommended guidelines for the use of PDE5 inhibitors with a proposed nightly dosing regimen, which was suggested to have potential positive effects on erectile function. The results clearly show that nightly dosing with vardenafil does not have any effect beyond that of on-demand use.
The study shows that on-demand use of vardenafil during the treatment period was associated with significantly greater erectile function and sexual intercourse completion rates compared to placebo. The success rates for the vardenafil on-demand group were also higher than for the nightly group. These data indicate that the use of on-demand vardenafil is of greater benefit than nightly treatment in patients following NSRP surgery and, in general, support the on-demand use of PDE5 inhibitors following NSRP surgery over a daily dosing regimen. This prompts reconsideration of the current practice of prescribing nightly PDE5 inhibitor therapy, as on-demand use of vardenafil is equally effective in men with ED following NSRP, a notoriously difficult-to-treat patient population.
Elsevier
Erectile Dysfunction Current Events and Erectile Dysfunction News RSSDrug for erectile dysfunction improves heart function in young heart-disease patients
Heart function significantly improved in children and young adults with single-ventricle congenital heart disease who have had the Fontan operation following treatment with sildenafil, a drug used to treat erectile dysfunction and pulmonary hypertension, say researchers from The Children's Hospital of Philadelphia.
Pivotal study for PSD502 -- the first potential treatment for premature ejaculation
At the annual meeting of the Sexual Medicine Society of North America (SMSNA), Inc. in San Diego, Sciele Pharma, Inc., a Shionogi Company and Plethora Solutions Limited, a wholly owned subsidiary of Plethora Solutions Holdings PLC ("Plethora" - AIM:PLE)., today presented data from its second positive pivotal study of PSD502 for the treatment of premature ejaculation (PE).
Viagra for women? Drug developed as antidepressant effective in treating low libido
Pooled results from three separate clinical trials of flibanserin, a drug originally created as an antidepressant, show it is effective in treating women with acquired hypoactive sexual desire disorder. These trials were the first ever to test a therapy that works at the level of the brain to enhance libido in women reporting low sexual desire.
Workplace BPA exposure increases risk of male sexual dysfunction
High levels of workplace exposure to Bisphenol-A may increase the risk of reduced sexual function in men, according to a Kaiser Permanente study appearing in the journal Human Reproduction, published by Oxford Journals.
Study points to new uses, unexpected side effects of already-existing drugs
Scientists at the University of North Carolina at Chapel Hill School of Medicine and the University of California, San Francisco have developed and experimentally tested a technique to predict new target diseases for existing drugs.
Drug shows promise in treating dangerous complication of erectile disorder
Thousands of men are afflicted with an embarrassing and painful condition that triggers spontaneous, long-lasting erections. There are limited treatment options, but a solution could be on the way thanks to new research at The University of Texas Health Science Center at Houston.
BUSM researchers propose a relationship between androgen deficiency and cardiovascular disease
Researchers from Boston University School of Medicine (BUSM) in collaboration with researchers from Lahey Clinic Northshore, Peabody, Mass., believe that androgen deficiency might be the underlying cause for a variety of common clinical conditions, including diabetes, erectile dysfunction, metabolic syndrome and cardiovascular disease (CVD).
Diabetes weakens your bones
Current research suggests that the inflammatory molecule TNF-α may contribute to delayed bone fracture healing in diabetics.
Topical erectile dysfunction therapy shows promise
An innovative drug-delivery system - nanoparticles encapsulating nitric oxide or prescription drugs - shows promise for topical treatment of erectile dysfunction (ED), according to a new study by scientists at Albert Einstein College of Medicine of Yeshiva University.
Dr. Ronald Lewis Couples' treatment for sexual problems on the agenda for sexual medicine experts
Couples' treatment for sexual problems and other innovative approaches to improving sexual health for men and women are on the agenda of sexual medicine experts.
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Rock Hard Weekend Male Enhancement by Rock Hard Weekend RockHard Weekend is a 100% all-natural formula from a tried and tested unique blend of 13 herbal ingredients that work together to give 72 hours of pleasure. You will have full control over when and where you get RockHard. No more embarrassing situations! RockHard Weekend is even safe with alcohol and in just 30 minutes after taking 1 simple capsule you will be ready to for pleasure. |
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