View clinical trials related to Impotence.
Filter by:Study to determine if men from around the world prefer sildenafil to tadalafil.
Study to evaluate the safety and effectiveness of 2.5 mg and 5 mg tadalafil when taken by men with diabetes mellitus who have problems getting and maintaining an erection.
To determine if men prefer tadalafil or sildenafil for getting and keeping an erection after treatment with both drugs.
The purpose of this study is to investigate the interaction between doxazosin GITS and vardenafil on blood pressure (Both systolic and diastolic blood pressure) in patients with both ED and BPH.
To determine if tadalafil 5 mg daily compared to placebo when given for 12 weeks improves getting and maintaining an erection in men with erectile dysfunction and if there are improvements in the sexual quality of life of the man and his female study partner
Study is a clinical study assessing the effect of oral tadalafil 10mg or 20 mg on psychosocial aspects and quality of life of erectile dysfunction patients and to compare tadalafil with previous oral erectile dysfunction medication. Study period is 13 weeks. Study patients fill in quality of life questionnaires and treatment satisfaction questionnaires.
To compare the efficacy and safety of Viagra (sildenafil citrate) vs. placebo for the treatment of men with ED and at least 1 prespecified risk factor who do not self identify as having ED.
Men's quality of life (QoL) is potentially affected by mild erectile dysfunction (ED) to the same extent as it is by moderate and severe ED. This study will provide controlled clinical data measuring efficacy, QoL parameters and satisfaction changes in men with mild ED treated with Viagra versus those treated with a placebo. With an open-label extension, this study will also provide all study subjects the opportunity to receive the active drug treatment for 6 weeks.
The primary aim of this study is to assess how effective PF-00592379 is in restoring penile erections in patients with erectile dysfunction. Patients will attend for 4 treatment visits where they will receive the following in random order; 2 separate doses of PF-00592379, sildenafil 100mg used as a positive control, or placebo (dummy medication). The effect on penile erections will be assessed in the clinic using penile plethysmography (RigiScan PlusTM technique).
To evaluate the efficacy of Viagra dose titration to 100mg versus 50mg in men with erectile dysfunction, based on responses to the IIEF questionnaire as measured at the beginning and at the end of double blind treatment, comparing the group titrated to 100mg vs. the group maintained on 50mg.