Study to Determine a Preference Between Sildenafil or Tadalafil Treatment for Problems Getting an Erection

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To determine if men with problems getting and keeping an erection prefer treatment with tadalafil or sildenafil...

Brief Summary

Official Title: “Switching From Sildenafil Citrate to Tadalafil in Treatment of Erectile Dysfunction: Assessment of Treatment Preference”

To determine if men with problems getting and keeping an erection prefer treatment with tadalafil or sildenafil.

  • Study Type: Interventional
  • Study Design: Endpoint Classification: Bio-equivalence Study, Intervention Model: Crossover Assignment, Masking: Open Label

Intervention(s) in this Clinical Trial

  • Drug: tadalafil
    • 20 mg tadalafil tablets taken by mouth, as needed, no more than once a day for 8 weeks.
  • Drug: sildenafil
    • Current users of sildenafil citrate for a minimum of 6 weeks prior to visit 1 will continue with an individual dosage to be taken no more than once a day for an additional 4 weeks.

Arms, Groups and Cohorts in this Clinical Trial

  • Active Comparator: 1
    • sildenafil treatment for at least 10 weeks prior to a 1 week wash out
  • Active Comparator: 2
    • Tadalafil treatment for 8 weeks following the 1 week washout period.

Outcome Measures for this Clinical Trial

Primary Measures

  • Patient choice of drug at visit 5
    • Time Frame: 14-15 weeks

Secondary Measures

  • PAIRS self-administered scale scores
    • Time Frame: 14-15 weeks

Criteria for Participation in this Clinical Trial

Inclusion Criteria:

  • History of erection problems
  • Anticipate a monogamous female sexual relationship
  • Abstain from other erection treatments throughout the study
  • Currently use sildenafil

Exclusion Criteria:

  • Other primary sexual disorders
  • History of radical prostatectomy or other pelvic surgery that affected being able to have an erection
  • History of penile implant or clinically significant penile deformity.
  • Nitrate use
  • Certain heart problems

Gender Eligibility for this Clinical Trial: Male

Minimum Age for this Clinical Trial: 18 Years

Maximum Age for this Clinical Trial: N/A

Are Healthy Volunteers Accepted for this Clinical Trial?: No

Clinical Trial Investigator Information

Lead Investigator: Eli Lilly and Company Industry

Overall Clinical Trial Officials and Contacts

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) Study Director Eli Lilly and Company  

Additional Information

Information obtained from ClinicalTrials.gov on February 09, 2012

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00547352

Study ID Number: 9152

ClinicalTrials.gov Identifier: NCT00547352

Health Authority: Korea: Food and Drug Administration

Lilly Clinical Trial Registry

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The URL of this page is:
http://clinicaltrialsfeeds.org/clinical-trials/show/NCT00547352