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Evaluating the Efficacy of Vardenafil in Subjects With Erectile Dysfunction (ED) Administered 12, 18 or 24 Hours Prior to Intercourse

This study has been completed.
Information provided by:
Bayer Identifier:
First received: April 24, 2008
Last updated: June 29, 2009
Last verified: June 2009
Erectile dysfunction (ED) is defined as the inability to achieve or maintain an erection sufficient for satisfactory sexual performance. However, there remains no prospectively obtained data on the maximal time of effectiveness of vardenafil. The goal of the current study was to determine if vardenafil will significantly increase the percentage of successful intercourse attempts from 12 to 24 hours following dosing. A total of three time points 12, 18, and 24 hours were assessed in this pilot study to better quantify the effect of vardenafil.

Condition Intervention Phase
Erectile Dysfunction
Drug: Levitra (Vardenafil, BAY38-9456)
Drug: Placebo
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Official Title: A Pilot, Randomized, Double-Blind, Placebo-Controlled, Crossover Study Evaluating the Efficacy and Safety of Vardenafil Versus Placebo Administered 12, 18 and 24 Hours Prior to Initiation of Sexual Intercourse in Subjects With ED

Resource links provided by NLM:

Further study details as provided by Bayer:

Primary Outcome Measures:
  • Sexual encounter profile Question 3 [ Time Frame: 6 weeks ]

Secondary Outcome Measures:
  • Safety and Tolerability [ Time Frame: 6 weeks ]

Enrollment: 264
Study Start Date: September 2004
Study Completion Date: December 2004
Arms Assigned Interventions
Experimental: Arm 1 Drug: Levitra (Vardenafil, BAY38-9456)
10mg and 20mg to be taken 12, 18, 24 hours prior to sexual intercourse
Placebo Comparator: Arm 2 Drug: Placebo
Matching placebo


Ages Eligible for Study:   18 Years to 64 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Men >/= 18 years of age
  • ED >/= 6 months
  • Stable sexual relationship for > 6 months

Exclusion Criteria:

  • Primary hypoactive sexual desire
  • History of myocardial infarction, stroke or life-threatening arrhythmia within prior 6 month
  • Nitrate therapy
  • Other exclusion criteria apply according to the Summary of Product Characteristics
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00667979

Sponsors and Collaborators
Study Director: Bayer Study Director Bayer
  More Information

Additional Information:
Responsible Party: Medical Affairs Therapeutic Area Head, Bayer Healthcare AG Identifier: NCT00667979     History of Changes
Other Study ID Numbers: 11586
Study First Received: April 24, 2008
Last Updated: June 29, 2009

Keywords provided by Bayer:
Erectile Dysfunction

Additional relevant MeSH terms:
Erectile Dysfunction
Sexual Dysfunction, Physiological
Genital Diseases, Male
Sexual Dysfunctions, Psychological
Mental Disorders
Vardenafil Dihydrochloride
Vasodilator Agents
Phosphodiesterase 5 Inhibitors
Phosphodiesterase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Urological Agents processed this record on March 29, 2017