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To Determine Effect and Safety of Tadalafil Taken by Men of Different Races and With Different Diseases When Needed for Erections

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: October 22, 2007
Last Update Posted: October 22, 2007
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ICOS Corporation
Information provided by:
Eli Lilly and Company
To compare men of different races and those with diabetes or depression to white men that do not have diabetes or depression but also suffer from the inability to get or keep an erection.

Condition Intervention Phase
Impotence Drug: tadalafil Phase 3

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open-Label Study to Evaluate the Efficacy and Safety of Tadalafil Administered "On Demand" to Men of Various Populations With Erectile Dysfunction

Resource links provided by NLM:

Further study details as provided by Eli Lilly and Company:

Primary Outcome Measures:
  • Change in the scores of the IIEF scale's Erectile Function domain, questions 1-5 and 15 [ Time Frame: 12 weeks ]

Secondary Outcome Measures:
  • Percentage of Yes answers to questions 2 and 3 of the Sexual Encounter Profile [ Time Frame: 12 weeks ]
  • Evaluation of score changes for selected GAQ, PAIRS, and IIEF questions. [ Time Frame: 12 weeks ]

Enrollment: 1933
Study Start Date: July 2003
Study Completion Date: March 2004
Arms Assigned Interventions
Active Comparator: 1
Drug: tadalafil
20 mg tadalafil tablet taken by mouth, as needed, no more than once a day, for 12 weeks.
Other Names:
  • LY450190
  • Cialis
  • IC351


Information from the National Library of Medicine

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, Learn About Clinical Studies.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • At least 3 months history of erectile dysfunction (ED)
  • Anticipate a monogamous relationship with a female sexual partner
  • Be able to make minimum required sexual intercourse attempts
  • Abstain from using any other ED treatment

Exclusion Criteria:

  • Other primary sexual disorders
  • History of penile implant or clinically significant penile deformity
  • History or current nitrate use
  • History of certain heart problems
  • History of certain kidney problems
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00547417

United States, Texas
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Dallas, Texas, United States
Sponsors and Collaborators
Eli Lilly and Company
ICOS Corporation
Study Director: Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern Time (UTC/GMT - 5 hours, EST) Eli Lilly and Company
  More Information

Additional Information:
ClinicalTrials.gov Identifier: NCT00547417     History of Changes
Other Study ID Numbers: 7006
First Submitted: October 18, 2007
First Posted: October 22, 2007
Last Update Posted: October 22, 2007
Last Verified: October 2007

Additional relevant MeSH terms:
Erectile Dysfunction
Sexual Dysfunction, Physiological
Genital Diseases, Male
Sexual Dysfunctions, Psychological
Mental Disorders
Vasodilator Agents
Phosphodiesterase 5 Inhibitors
Phosphodiesterase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Urological Agents