A double blind, randomized, placebo controlled, two part, two session balanced, crossover study to evaluate visual changes in healthy male subjects aged 18 - 55 years after receiving: 1. at least 15 doses of 20 mg vardenafil, compared to placebo and 2. two doses of sildenafil, 200 mg compared to placebo.
Phase of Trial: Phase IV
Latest Information Update: 25 Mar 2015
At a glance
- Drugs Sildenafil; Vardenafil
- Indications Erectile dysfunction
- Focus Pharmacodynamics
- Sponsors Bayer
- 09 Mar 2009 Actual patient number (63) added as reported by ClinicalTrials.gov.
- 09 Mar 2009 Actual end date (Oct 2006) added as reported by ClinicalTrials.gov.
- 09 Mar 2009 Bayer HealthCare added as trial affiliate as reported by ClinicalTrials.gov.