A Study for Patients With Erectile Dysfunction to Test Whether Tadalafil Taken Once a Day Can Better Improve Psychological Outcomes.

Erectile Dysfunction Clinical Trial

Official title:

A Comparison of Psychosocial Outcomes Following Tadalafil Once a Day or PDE5 Inhibitor As Needed in Men With Erectile Dysfunction.

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00734604
• Other study ID #: 12313
• Secondary ID: H6D-CR-S024
• Status: Completed
• Phase: Phase 3
• First received: August 12, 2008
• Last updated: October 21, 2010
• Start date: August 2008
• Est. completion date: September 2009

Study information

• Verified date: October 2010
• Source: Eli Lilly and Company
• Contact: n/a
• Is FDA regulated: No
• Health authority: Australia: Department of Health and Ageing Therapeutic Goods AdministrationBrazil: Ministry of HealthGermany: Federal Institute for Drugs and Medical DevicesItaly: Ministry of HealthMexico: Federal Commission for Sanitary Risks ProtectionMexico: Ethics CommitteeMexico: Ministry of HealthSpain: Ethics CommitteeSpain: Spanish Agency of MedicinesUnited Kingdom: Medicines and Healthcare Products Regulatory AgencyUnited Kingdom: Research Ethics CommitteeUnited States: Food and Drug Administration
• Study type: Interventional

Clinical Trial Summary

The primary purpose of the study is to help answer whether tadalafil taken once a day can help improve the psychological outcomes (such as sexual self confidence, spontaneity and time concerns) compared to sildenafil taken as needed in patients with erectile dysfunction (ED).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 378
• Est. completion date: September 2009
• Est. primary completion date: September 2009
• Accepts healthy volunteers: No
• Gender: Male
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• History of erectile dysfunction (ED).

• Have had satisfactory response to tadalafil, sildenafil citrate, or vardenafil HCl for a period of at least 6 months and expect frequent use (at least one dose per week, on average) when administered as needed.

• Have never used tadalafil 5 mg or 2.5 mg once a day therapy.

• Anticipate having the same adult female sexual partner willing to participate during the study.

• Agree to make at least four sexual intercourse attempts during the first four weeks of the study.

• Agree not to use any other treatment for ED (even herbal treatments) during the study.

• Agree to follow the directions given by the study doctor and staff about using the study drug.

Exclusion Criteria:

• Have any other primary sexual disorders present or penile deformity.

• Have history of radical prostatectomy or penile implant.

• Have problems with your kidneys, liver, or nervous system.

• Have uncontrolled diabetes, as measured by a blood test for haemoglobin A1C greater than a value of 11%.

• Are being treated for heart disease with any drug that is called a nitrate (for example, nitroglycerin).

• Have chest pain (called unstable angina or angina) that requires treatment.

• Have heart disease that causes symptoms after you exert yourself.

• Have had any of the following in the past 90 days: Heart attack, also known as a myocardial infarction (MI); Heart bypass surgery (called coronary artery bypass graft surgery); Had a procedure to open up blood vessels in the heart known as angioplasty or stent placement (percutaneous coronary intervention).

• Have a history of loss of vision in one eye because of nonarteritic anterior ischemic optic neuropathy (NAION).

• Have retinitis pigmentosa.

• Have history of human immunodeficiency virus (HIV).

• Have very high or very low blood pressure (your study doctor will discuss the limits with you).

• Have had a stroke or a significant injury to your brain or spinal cord within the last 6 months.

• Have rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption Lactose intolerance.

• Have a scheduled or planned surgery requiring anaesthesia during the course of the study.

• Have a scheduled cataract surgery during the curse of the study.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Erectile Dysfunction

Intervention

Drug:
• tadalafil once a day [T(OaD)]
5 mg tablet taken once a day (OaD) by mouth for 8 weeks
• sildenafil citrate as needed [S(PRN)]
100 mg tablet taken as needed (PRN) by mouth for 8 weeks
• tadalafil as needed [T(PRN)]
20 mg tablet taken as needed (PRN) by mouth for 8 weeks

Locations

Country	Name	City	State
Australia	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.	Adelaide	South Australia
Australia	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.	Malvern	Victoria
Australia	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.	Nedlands	Western Australia
Brazil	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.	Goiânia
Brazil	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.	Rio Claro
Brazil	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.	Rio De Janeiro
Brazil	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.	Sao Jose Rio Preto
Brazil	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.	Sao Paulo
Germany	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.	Augsburg
Germany	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.	Berlin
Germany	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.	Hamburg
Italy	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.	Milan
Italy	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.	Sassari
Italy	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.	Torino
Mexico	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.	La Joya
Mexico	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.	Mexico City
Mexico	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.	Monterrey
Puerto Rico	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.	San Juan
Puerto Rico	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.	Santurce
Spain	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.	Barcelona
Spain	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.	La Coruña
Spain	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.	Madrid
Spain	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.	Malaga
Spain	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.	Sevilla
Spain	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.	Vigo
United Kingdom	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.	Durham	County Durham
United Kingdom	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.	Leeds	West Yorkshire
United Kingdom	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.	Lichfield	Staffordshire
United Kingdom	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.	London
United Kingdom	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.	Plymouth	Devonshire
United States	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.	Federal Way	Washington
United States	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.	Huntsville	Alabama
United States	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.	Knoxville	Tennessee
United States	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.	Middlebury	Connecticut
United States	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.	Newport Beach	California
United States	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.	Plantation	Florida
United States	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.	San Antonio	Texas

Sponsors (1)

Lead Sponsor	Collaborator
Eli Lilly and Company

Countries where clinical trial is conducted

United States,  Australia,  Brazil,  Germany,  Italy,  Mexico,  Puerto Rico,  Spain,  United Kingdom, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change From Baseline Between Tadalafil Once a Day (OaD) and Sildenafil as Needed (PRN) in Sexual Self-Confidence Domain of Psychological and Interpersonal Relationship Scales (PAIRS)	The PAIRS is a self-administed scale that assesses the broader psychological and interpersonal outcomes associated with erectile dysfunction and its treatment. Sexual Self-Confidence score is the average of responses on 6 PAIRS item scores. Sexual Self-Confidence scores range from 1 (strongly disagree) to 4 (strongly agree). Higher scores are indicative of greater sexual self-confidence.	baseline, 8 weeks of each treatment	No
Secondary	Change From Baseline Between Tadalafil Once a Day (OaD) and Tadalafil as Needed (PRN) in Sexual Self-Confidence Domain of Psychological and Interpersonal Relationship Scales (PAIRS)	The PAIRS is a self-administed scale that assesses the broader psychological and interpersonal outcomes associated with erectile dysfunction and its treatment. Sexual Self-Confidence score is the average of responses on 6 PAIRS item scores. Sexual Self-Confidence scores range from 1 (strongly disagree) to 4 (strongly agree). Higher scores are indicative of greater sexual self-confidence.	baseline, 8 weeks of each treatment	No
Secondary	Change From Baseline to Endpoint in the Spontaneity Domain of PAIRS	The PAIRS is a self-administed scale that assesses the broader psychological and interpersonal outcomes associated with erectile dysfunction and its treatment. Spontaneity score is the average of responses on 9 PAIRS item scores. Spontaneity scores range from 1 (strongly disagree) to 4 (strongly agree). Higher scores are indicative of greater spontaneity.	baseline, 8 weeks of each treatment	No
Secondary	Change From Baseline to Endpoint in the Time Concerns Domain of PAIRS	The PAIRS is a self-administed scale that assesses the broader psychological and interpersonal outcomes associated with erectile dysfunction and its treatment. Time Concerns score is the average of responses on 8 PAIRS item scores. Time Concerns scores range from 1 (strongly disagree) to 4 (strongly agree). Higher scores are indicative of greater sexual self-confidence.	baseline, 8 weeks of each treatment	No
Secondary	Change From Baseline to Endpoint in the Erectile Function Domain of the International Index of Erectile Function (IIEF)	Self-reported erectile function over the past 4 weeks. Scores range from 0 (low or no erectile function) to 5 (high erectile function) on 6 questions (1-5, 15 of the IIEF). Total Erectile Function Domain scores range from 0 to 30.	baseline, 8 weeks of each treatment	No
Secondary	Change From Baseline to Endpoint in the Proportion of Days With at Least One Morning Erection		baseline, 8 weeks of each treatment	No
Secondary	Change From Baseline to Endpoint in the Intercourse Satisfaction (IS) Domain of the IIEF	Self-reported intercourse satisfaction over the past 4 weeks. Scores range from 0 (low/no satisfaction to 5 (high satisfaction), thus the 3 questions of the IIEF-IS domain range from 0 to 15.	baseline, 8 weeks of each treatment	No
Secondary	Change From Baseline to Endpoint in the Overall Satisfaction (OS) Domain of the IIEF	Self-reported overall satisfaction over the past 4 weeks. Scores range from 0 (low/no satisfaction to 5 (high satisfaction), thus the 2 questions of the IIEF-OS domain range from 0 to 10.	baseline, 8 weeks of each treatment	No
Secondary	Erectile Dysfunction Inventory of Treatment Satisfaction (EDITS) Score at Endpoint	EDITS is a questionnaire-based inventory capturing a participant's subjective evaluation of treatment for the participant's erection problems. All items on the 11-item Patient EDITS were scored from zero (no satisfaction or dissatisfaction) to four (high satisfaction). The EDITS Summary Score (transformed) is obtained by adding each individual score for all questions, dividing by the number of questions, and multiplying by 25, so that EDITS scores could range from a low of 0 (extremely low treatment satisfaction) to a high of 100 (extremely high treatment satisfaction).	8 weeks of each treatment	No
Secondary	Number of Participants With at Least One Serious Adverse Event	Serious adverse events are listed in the Reported Adverse Event module.	baseline through 26 weeks (including two washout periods of 1 week each)	Yes
Secondary	Change From Baseline to Endpoint in the Self-Esteem And Relationship (SEAR) Questionnaire Transformed Total Score	Measures improvement in self-esteem and relationship satisfaction. Questionnaire consists of two domains, Sexual Relationship (items 1-8) and Confidence (items 9-14). Overall score is transformed onto a 0 (least favorable) to 100 (most favorable) scale. Overall score was calculated from two domains and subscales scores.	baseline, 8 weeks of each treatment	No
Secondary	Question 1 "I Felt as if I Did Not Have ED" Score of the Patient Perception and Feelings Questions (PPF-Q) at Endpoint	Scores for Question 1 range from 0 (not at all) to 4 (extremely).	8 weeks of each treatment	No
Secondary	Question 2 "I Felt in Control of my Sex Life" Score of the Patient Perception and Feelings Questions (PPF-Q) at Endpoint	Scores for Question 2 range from 0 (not at all) to 4 (extremely).	8 weeks of each treatment	No
Secondary	Question 3 "I Felt the Drug Was in Control of my Erections" Score of the Patient Perception and Feelings Questions (PPF-Q) at Endpoint	Scores for Question 3 range from 0 (not at all) to 4 (extremely).	8 weeks of each treatment	No
Secondary	Question 4 "I Felt Like a Whole Man" Score of the Patient Perception and Feelings Questions (PPF-Q) at Endpoint	Scores for Question 4 range from 0 (not at all) to 4 (extremely).	8 weeks of each treatment	No