Trial Outcomes & Findings for Effects of Tadalafil Once a Day for 12 Weeks in Men With Signs and Symptoms of Benign Prostatic Hyperplasia (NCT NCT00386009)

NCT ID: NCT00386009

Last Updated: 2009-07-09

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

200 participants

Primary outcome timeframe

Baseline and 12 weeks

Results posted on

2009-07-09

Participant Flow

Participant milestones

Participant milestones
Measure
Placebo
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Overall Study
STARTED
101
99
Overall Study
COMPLETED
92
89
Overall Study
NOT COMPLETED
9
10

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Overall Study
Adverse Event
0
2
Overall Study
Death
1
0
Overall Study
Entry Criteria Not Met
0
2
Overall Study
Lost to Follow-up
1
1
Overall Study
Protocol Violation
1
0
Overall Study
Sponsor Decision
1
1
Overall Study
Withdrawal by Subject
5
4

Baseline Characteristics

Effects of Tadalafil Once a Day for 12 Weeks in Men With Signs and Symptoms of Benign Prostatic Hyperplasia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=101 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=99 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Total
n=200 Participants
Total of all reporting groups
Age Continuous
59.03 years
STANDARD_DEVIATION 9.69 • n=5 Participants
58.16 years
STANDARD_DEVIATION 8.82 • n=7 Participants
58.60 years
STANDARD_DEVIATION 9.26 • n=5 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Sex: Female, Male
Male
101 Participants
n=5 Participants
99 Participants
n=7 Participants
200 Participants
n=5 Participants
Region of Enrollment
United States
99 participants
n=5 Participants
95 participants
n=7 Participants
194 participants
n=5 Participants
Region of Enrollment
Canada
2 participants
n=5 Participants
4 participants
n=7 Participants
6 participants
n=5 Participants
Baseline Benign Prostatic Hyperplasia (BPH) Lower Urinary Tract Symptom (LUTS) Severity
Moderate (IPSS <20)
34 participants
n=5 Participants
35 participants
n=7 Participants
69 participants
n=5 Participants
Baseline Benign Prostatic Hyperplasia (BPH) Lower Urinary Tract Symptom (LUTS) Severity
Severe (IPSS ≥20)
66 participants
n=5 Participants
62 participants
n=7 Participants
128 participants
n=5 Participants
Baseline Benign Prostatic Hyperplasia (BPH) Lower Urinary Tract Symptom (LUTS) Severity
Missing Baseline Measure
1 participants
n=5 Participants
2 participants
n=7 Participants
3 participants
n=5 Participants
Bladder Outlet Obstruction Index (BOOI)
Obstructed (BOOI > 40)
33 participants
n=5 Participants
34 participants
n=7 Participants
67 participants
n=5 Participants
Bladder Outlet Obstruction Index (BOOI)
Equivocal (BOOI 20-40)
35 participants
n=5 Participants
34 participants
n=7 Participants
69 participants
n=5 Participants
Bladder Outlet Obstruction Index (BOOI)
Unobstructed (BOOI < 20)
33 participants
n=5 Participants
31 participants
n=7 Participants
64 participants
n=5 Participants
Duration of Benign Prostatic Hyperplasia Lower Urinary Tract Symptoms (BPH LUTS)
6 months to 1 year
13 participants
n=5 Participants
12 participants
n=7 Participants
25 participants
n=5 Participants
Duration of Benign Prostatic Hyperplasia Lower Urinary Tract Symptoms (BPH LUTS)
1 year to 3 years
36 participants
n=5 Participants
30 participants
n=7 Participants
66 participants
n=5 Participants
Duration of Benign Prostatic Hyperplasia Lower Urinary Tract Symptoms (BPH LUTS)
> 3 years
52 participants
n=5 Participants
57 participants
n=7 Participants
109 participants
n=5 Participants
Erectile Dysfunction Severity
Mild
20 participants
n=5 Participants
22 participants
n=7 Participants
42 participants
n=5 Participants
Erectile Dysfunction Severity
Moderate
31 participants
n=5 Participants
31 participants
n=7 Participants
62 participants
n=5 Participants
Erectile Dysfunction Severity
Severe
9 participants
n=5 Participants
5 participants
n=7 Participants
14 participants
n=5 Participants
Presence of Erectile Dysfunction
Yes
60 participants
n=5 Participants
58 participants
n=7 Participants
118 participants
n=5 Participants
Presence of Erectile Dysfunction
No
41 participants
n=5 Participants
41 participants
n=7 Participants
82 participants
n=5 Participants
Previous Alpha-Blocker Therapy
Yes
22 participants
n=5 Participants
21 participants
n=7 Participants
43 participants
n=5 Participants
Previous Alpha-Blocker Therapy
No
79 participants
n=5 Participants
78 participants
n=7 Participants
157 participants
n=5 Participants
Previous Therapy for Benign Prostatic Hyperplasia
Yes
34 participants
n=5 Participants
29 participants
n=7 Participants
63 participants
n=5 Participants
Previous Therapy for Benign Prostatic Hyperplasia
No
67 participants
n=5 Participants
70 participants
n=7 Participants
137 participants
n=5 Participants
Race/Ethnicity
American Indian or Alaska Native
0 participants
n=5 Participants
1 participants
n=7 Participants
1 participants
n=5 Participants
Race/Ethnicity
Asian
3 participants
n=5 Participants
2 participants
n=7 Participants
5 participants
n=5 Participants
Race/Ethnicity
Black or African American
12 participants
n=5 Participants
13 participants
n=7 Participants
25 participants
n=5 Participants
Race/Ethnicity
Hispanic or Latino
8 participants
n=5 Participants
8 participants
n=7 Participants
16 participants
n=5 Participants
Race/Ethnicity
White
78 participants
n=5 Participants
75 participants
n=7 Participants
153 participants
n=5 Participants
Body Mass Index (BMI)
29.44 kilograms/square centimeters (kg/cm^2)
STANDARD_DEVIATION 4.47 • n=5 Participants
29.45 kilograms/square centimeters (kg/cm^2)
STANDARD_DEVIATION 4.93 • n=7 Participants
29.45 kilograms/square centimeters (kg/cm^2)
STANDARD_DEVIATION 4.69 • n=5 Participants
Body Weight
92.94 kilograms
STANDARD_DEVIATION 16.55 • n=5 Participants
93.90 kilograms
STANDARD_DEVIATION 16.49 • n=7 Participants
93.42 kilograms
STANDARD_DEVIATION 16.49 • n=5 Participants
Height
177.56 centimeters
STANDARD_DEVIATION 8.07 • n=5 Participants
178.58 centimeters
STANDARD_DEVIATION 7.50 • n=7 Participants
178.07 centimeters
STANDARD_DEVIATION 7.79 • n=5 Participants
Postvoid Residual Volume by Ultrasound
59.30 milliliters
STANDARD_DEVIATION 60.87 • n=5 Participants
45.65 milliliters
STANDARD_DEVIATION 49.58 • n=7 Participants
52.51 milliliters
STANDARD_DEVIATION 55.82 • n=5 Participants
Prostate Specific Antigen (PSA)
1.60 nanograms per milliliter
STANDARD_DEVIATION 1.13 • n=5 Participants
1.51 nanograms per milliliter
STANDARD_DEVIATION 1.14 • n=7 Participants
1.55 nanograms per milliliter
STANDARD_DEVIATION 1.13 • n=5 Participants

PRIMARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Outcome measures

Outcome measures
Measure
Placebo
n=91 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=84 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Detrusor Pressure at Peak Urinary Flow Rate (PdetQmax)
Baseline
54.83 centimeters of water (cm H20)
Standard Deviation 27.36
56.87 centimeters of water (cm H20)
Standard Deviation 29.67
Change From Baseline to 12 Week Endpoint in Detrusor Pressure at Peak Urinary Flow Rate (PdetQmax)
Change from Baseline to 12 Week Endpoint
1.92 centimeters of water (cm H20)
Standard Deviation 19.71
-2.95 centimeters of water (cm H20)
Standard Deviation 15.92

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Qmax was measured during free-flow tests using a standard calibrated flow meter.

Outcome measures

Outcome measures
Measure
Placebo
n=89 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=82 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Peak Urinary Flow Rate (Qmax) Measured During Free-Flow Studies
Baseline
13.03 milliliters per second
Standard Deviation 7.34
14.75 milliliters per second
Standard Deviation 10.70
Change From Baseline to 12 Week Endpoint in Peak Urinary Flow Rate (Qmax) Measured During Free-Flow Studies
Change from Baseline to 12 Week Endpoint
0.52 milliliters per second
Standard Deviation 7.83
0.01 milliliters per second
Standard Deviation 8.83

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Qave was measured during free-flow tests using a standard calibrated flow meter.

Outcome measures

Outcome measures
Measure
Placebo
n=70 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=59 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Mean Urinary Flow Rate (Qave) Measured During Free-Flow Studies
Baseline
7.10 millilters per second
Standard Deviation 4.37
7.23 millilters per second
Standard Deviation 4.18
Change From Baseline to 12 Week Endpoint in Mean Urinary Flow Rate (Qave) Measured During Free-Flow Studies
Change from Baseline to 12 Week Endpoint
-0.01 millilters per second
Standard Deviation 4.11
1.00 millilters per second
Standard Deviation 3.04

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Outcome measures

Outcome measures
Measure
Placebo
n=88 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=82 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Volume of Voided Urine (Vcomp) Measured During Free-Flow Studies
Baseline
258.56 milliliters
Standard Deviation 134.21
268.22 milliliters
Standard Deviation 149.77
Change From Baseline to 12 Week Endpoint in Volume of Voided Urine (Vcomp) Measured During Free-Flow Studies
Change from Baseline to 12 Week Endpoint
-4.10 milliliters
Standard Deviation 151.82
-5.17 milliliters
Standard Deviation 151.73

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

PVRcath is the volume of urine remaining int he bladder after voiding, measured by catheterization.

Outcome measures

Outcome measures
Measure
Placebo
n=78 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=79 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Postvoid Residual Volume (PVRcath) Measured During Free-Flow Studies
Baseline
59.62 milliliters
Standard Deviation 66.74
48.99 milliliters
Standard Deviation 65.73
Change From Baseline to 12 Week Endpoint in Postvoid Residual Volume (PVRcath) Measured During Free-Flow Studies
Change from Baseline to 12 Week Endpoint
-1.85 milliliters
Standard Deviation 80.92
-9.13 milliliters
Standard Deviation 70.36

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Total bladder capacity was defined as Vcomp + PVRcath (obtained when the bladder was full).

Outcome measures

Outcome measures
Measure
Placebo
n=77 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=78 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Total Bladder Capacity Measured During Free-Flow Studies
Baseline
327.95 milliliters
Standard Deviation 165.66
316.79 milliliters
Standard Deviation 187.31
Change From Baseline to 12 Week Endpoint in Total Bladder Capacity Measured During Free-Flow Studies
Change from Baseline to 12 Week Endpoint
-17.53 milliliters
Standard Deviation 182.62
-14.88 milliliters
Standard Deviation 187.10

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Bladder voiding efficiency was defined as (Vcomp/total bladder capacity) X 100 (obtained when the bladder was full).

Outcome measures

Outcome measures
Measure
Placebo
n=77 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=78 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Bladder Voiding Efficiency (BVE) Measured During Free-Flow Studies
Baseline
84.01 milliliters
Standard Deviation 14.56
85.85 milliliters
Standard Deviation 13.44
Change From Baseline to 12 Week Endpoint in Bladder Voiding Efficiency (BVE) Measured During Free-Flow Studies
Change from Baseline to 12 Week Endpoint
-0.52 milliliters
Standard Deviation 16.31
1.85 milliliters
Standard Deviation 16.22

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Qmax was measured duirng pressure-flow tests.

Outcome measures

Outcome measures
Measure
Placebo
n=91 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=84 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Peak Urinary Flow Rate (Qmax) Measured During Pressure-Flow Studies
Baseline
9.49 milliliters per second
Standard Deviation 4.90
10.29 milliliters per second
Standard Deviation 4.46
Change From Baseline to 12 Week Endpoint in Peak Urinary Flow Rate (Qmax) Measured During Pressure-Flow Studies
Change from Baseline to 12 Week Endpoint
0.50 milliliters per second
Standard Deviation 2.91
0.38 milliliters per second
Standard Deviation 2.92

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Qave was measured during pressure-flow tests.

Outcome measures

Outcome measures
Measure
Placebo
n=87 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=81 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Mean Urinary Flow Rate (Qave) Measured During Pressure-Flow Studies
Baseline
4.67 milliliters per second
Standard Deviation 2.44
5.50 milliliters per second
Standard Deviation 2.68
Change From Baseline to 12 Week Endpoint in Mean Urinary Flow Rate (Qave) Measured During Pressure-Flow Studies
Change from Baseline to 12 Week Endpoint
0.45 milliliters per second
Standard Deviation 1.66
0.58 milliliters per second
Standard Deviation 1.91

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Vcomp was defined as the volume of voided urine measured during pressure-flow tests.

Outcome measures

Outcome measures
Measure
Placebo
n=91 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=84 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Volume of Voided Urine (Vcomp) Measured During Pressure-Flow Studies
Baseline
294.10 milliliters
Standard Deviation 147.74
296.64 milliliters
Standard Deviation 143.30
Change From Baseline to 12 Week Endpoint in Volume of Voided Urine (Vcomp) Measured During Pressure-Flow Studies
Change from Baseline to 12 Week Endpoint
3.31 milliliters
Standard Deviation 140.46
13.51 milliliters
Standard Deviation 99.64

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Max Pdet was defined as the maximum detrusor pressure observed during voiding.

Outcome measures

Outcome measures
Measure
Placebo
n=83 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=78 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Maximum Detrusor Pressure (Max Pdet) Measured During Pressure-Flow Studies
Baseline
67.13 centimeters of water (cm H20)
Standard Deviation 31.66
72.20 centimeters of water (cm H20)
Standard Deviation 38.65
Change From Baseline to 12 Week Endpoint in Maximum Detrusor Pressure (Max Pdet) Measured During Pressure-Flow Studies
Change from Baseline to 12 Week Endpoint
-0.48 centimeters of water (cm H20)
Standard Deviation 28.19
-2.11 centimeters of water (cm H20)
Standard Deviation 24.08

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

BCI was derived from the equation PdetQmax + 5Qmax. Scores: \<100 means weak, 100-150 menas normal, \>150 means strong. A decrease means a decrease in contractility of the bladder.

Outcome measures

Outcome measures
Measure
Placebo
n=91 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=84 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Bladder Contractility Index (BCI) Measured During Pressure-Flow Studies
Baseline
102.28 units on a nomogram
Standard Deviation 32.84
108.32 units on a nomogram
Standard Deviation 32.14
Change From Baseline to 12 Week Endpoint in Bladder Contractility Index (BCI) Measured During Pressure-Flow Studies
Change from Baseline to 12 Week Endpoint
4.43 units on a nomogram
Standard Deviation 20.86
-1.04 units on a nomogram
Standard Deviation 20.37

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

BOOI, formerly known as the Abrams-Griffith number, was derived from the equation PdetQmax - 2Qmax. Scores: \<20 means unobstructed, 20-40 means equivocol, \>40 means obstructed. An increase means worsening of obstruction, a decreased means lessening of obstruction (improvement).

Outcome measures

Outcome measures
Measure
Placebo
n=91 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=84 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Bladder Outlet Obstruction Index (BOOI) Measured During Pressure-Flow Studies
Baseline
35.84 units on a nomogram
Standard Deviation 30.87
36.28 units on a nomogram
Standard Deviation 33.14
Change From Baseline to 12 Week Endpoint in Bladder Outlet Obstruction Index (BOOI) Measured During Pressure-Flow Studies
Change from Baseline to 12 Week Endpoint
0.92 units on a nomogram
Standard Deviation 22.10
-3.71 units on a nomogram
Standard Deviation 17.56

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

Outcome measures

Outcome measures
Measure
Placebo
n=91 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=84 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Presence of Involuntary Detrusor Contractions During Bladder Filling
Present at Baseline
33 participants
28 participants
Presence of Involuntary Detrusor Contractions During Bladder Filling
Not Present at Baseline
58 participants
56 participants
Presence of Involuntary Detrusor Contractions During Bladder Filling
Present at Endpoint
36 participants
31 participants
Presence of Involuntary Detrusor Contractions During Bladder Filling
Not Present at Endpoint
55 participants
53 participants
Presence of Involuntary Detrusor Contractions During Bladder Filling
Present at Both Baseline and Endpoint
22 participants
18 participants
Presence of Involuntary Detrusor Contractions During Bladder Filling
Present at Baseline Only
11 participants
10 participants
Presence of Involuntary Detrusor Contractions During Bladder Filling
Present at Endpoint Only
14 participants
13 participants
Presence of Involuntary Detrusor Contractions During Bladder Filling
Present at Neither Baseline nor Endpoint
44 participants
43 participants

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: Number of participants in the Primary Analysis Population with involuntary detrusor contractions during bladder filling at both baseline and endpoint.

Assessed in participants with involuntary detrusor contractions during the bladder filling at both baseline and endpoint.

Outcome measures

Outcome measures
Measure
Placebo
n=22 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=18 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in Bladder Volume at First Involuntary Detrusor Contraction
Baseline
120.55 milliliters
Standard Deviation 82.50
164.00 milliliters
Standard Deviation 108.31
Change From Baseline to 12 Week Endpoint in Bladder Volume at First Involuntary Detrusor Contraction
Change from Baseline to 12 Week Endpoint
27.86 milliliters
Standard Deviation 128.20
28.56 milliliters
Standard Deviation 106.67

SECONDARY outcome

Timeframe: 12 weeks

Population: Number of participants randomized, had started study medication, had both a baseline and an end-of-study pressure-flow urodynamic assessment, and had at least 37 days (6 weeks minus a 5-day visit window) on treatment between randomization and the final pressure-flow urodynamic assessment.

The IPSS Total Score is obtained by combining the scores of the responses to the 7 component questions. Each question is scored from 0-5 for an IPSS range of 0-35 points; higher numerical scores from the IPSS questionnaire represent greater severity of symptoms.

Outcome measures

Outcome measures
Measure
Placebo
n=91 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=82 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Change From Baseline to 12 Week Endpoint in International Prostate Symptom Score (IPSS) Total Score
Baseline
22.01 units on a scale
Standard Deviation 5.72
21.46 units on a scale
Standard Deviation 5.63
Change From Baseline to 12 Week Endpoint in International Prostate Symptom Score (IPSS) Total Score
Change from Baseline to 12 Week Endpoint
-5.04 units on a scale
Standard Deviation 6.93
-9.13 units on a scale
Standard Deviation 6.90

SECONDARY outcome

Timeframe: Baseline and 12 weeks

Population: All randomized participants.

Laboratory tests that were statistically significant and clinically adverse would be reported for safety.

Outcome measures

Outcome measures
Measure
Placebo
n=98 Participants
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
n=94 Participants
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Clinically Adverse and Statistically Significant Changes From Baseline to 12 Week Endpoint in Laboratory Tests
0 significant and clinically adverse labs
0.41
0 significant and clinically adverse labs
0.33

Adverse Events

Placebo

Serious events: 2 serious events
Other events: 28 other events
Deaths: 0 deaths

Tadalafil

Serious events: 3 serious events
Other events: 55 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Cardiac disorders
Myocardial infarction/Death
0.99%
1/101 • Number of events 1
0.00%
0/99
Infections and infestations
Cellulitis
0.00%
0/101
1.0%
1/99 • Number of events 1
Infections and infestations
Pneumonia
0.00%
0/101
1.0%
1/99 • Number of events 1
Injury, poisoning and procedural complications
Humerus fracture
0.00%
0/101
1.0%
1/99 • Number of events 1
Injury, poisoning and procedural complications
Skin laceration
0.00%
0/101
1.0%
1/99 • Number of events 1
Nervous system disorders
Hypoaesthesia
0.99%
1/101 • Number of events 1
0.00%
0/99
Respiratory, thoracic and mediastinal disorders
Pleurisy
0.00%
0/101
1.0%
1/99 • Number of events 1

Other adverse events

Other adverse events
Measure
Placebo
placebo tablet taken by mouth once a day for 12 weeks
Tadalafil
20 mg tadalafil tablet taken by mouth once a day for 12 weeks
Cardiac disorders
Bradycardia
0.00%
0/101
1.0%
1/99 • Number of events 1
Cardiac disorders
Coronary artery disease
0.00%
0/101
1.0%
1/99 • Number of events 1
Cardiac disorders
Syncope
0.99%
1/101 • Number of events 1
0.00%
0/99
Ear and labyrinth disorders
Ear discomfort
0.00%
0/101
1.0%
1/99 • Number of events 1
Eye disorders
Vision blurred
0.00%
0/101
1.0%
1/99 • Number of events 1
Eye disorders
Visual disturbance
0.00%
0/101
1.0%
1/99 • Number of events 1
Gastrointestinal disorders
Abdominal pain
0.99%
1/101 • Number of events 1
1.0%
1/99 • Number of events 1
Gastrointestinal disorders
Diarrhoea
0.00%
0/101
1.0%
1/99 • Number of events 1
Gastrointestinal disorders
Dyspepsia
0.00%
0/101
8.1%
8/99 • Number of events 8
Gastrointestinal disorders
Dysphagia
0.00%
0/101
1.0%
1/99 • Number of events 1
Gastrointestinal disorders
Flatulence
0.00%
0/101
1.0%
1/99 • Number of events 1
Gastrointestinal disorders
Food poisoning
0.00%
0/101
1.0%
1/99 • Number of events 1
Gastrointestinal disorders
Gastritis
0.00%
0/101
2.0%
2/99 • Number of events 2
Gastrointestinal disorders
Gastrooesophageal reflux disease
0.00%
0/101
3.0%
3/99 • Number of events 3
Gastrointestinal disorders
Haemorrhoids
0.00%
0/101
1.0%
1/99 • Number of events 1
Gastrointestinal disorders
Toothache
0.99%
1/101 • Number of events 1
1.0%
1/99 • Number of events 1
Immune system disorders
Seasonal allergy
0.99%
1/101 • Number of events 1
1.0%
1/99 • Number of events 1
Infections and infestations
Bronchitis
0.00%
0/101
1.0%
1/99 • Number of events 1
Infections and infestations
Ear infection
0.00%
0/101
1.0%
1/99 • Number of events 1
Infections and infestations
Gastroenteritis aeromonas
0.99%
1/101 • Number of events 1
0.00%
0/99
Infections and infestations
Influenza
0.99%
1/101 • Number of events 1
2.0%
2/99 • Number of events 2
Infections and infestations
Nasopharyngitis
2.0%
2/101 • Number of events 2
1.0%
1/99 • Number of events 1
Infections and infestations
Sinusitis
0.00%
0/101
1.0%
1/99 • Number of events 1
Infections and infestations
Upper respiratory tract infection
2.0%
2/101 • Number of events 2
2.0%
2/99 • Number of events 2
Infections and infestations
Urinary tract infection
0.99%
1/101 • Number of events 1
0.00%
0/99
Injury, poisoning and procedural complications
Upper limb fracture
0.00%
0/101
1.0%
1/99 • Number of events 1
Investigations
Biopsy prostate
0.99%
1/101 • Number of events 1
0.00%
0/99
Investigations
Blood creatinine increased
0.00%
0/101
1.0%
1/99 • Number of events 1
Investigations
Gamma-glutamyltransferase increased
0.00%
0/101
1.0%
1/99 • Number of events 1
Investigations
Hepatic enzyme increased
0.00%
0/101
2.0%
2/99 • Number of events 2
Investigations
Liver function test abnormal
0.99%
1/101 • Number of events 1
0.00%
0/99
Investigations
Prostatic specific antigen increased
0.99%
1/101 • Number of events 1
0.00%
0/99
Metabolism and nutrition disorders
Diabetes mellitus non-insulin-dependent
0.00%
0/101
1.0%
1/99 • Number of events 1
Metabolism and nutrition disorders
Hypercholesterolaemia
0.00%
0/101
1.0%
1/99 • Number of events 1
Metabolism and nutrition disorders
Hyperglycaemia
2.0%
2/101 • Number of events 2
1.0%
1/99 • Number of events 1
Metabolism and nutrition disorders
Hyperlipidaemia
0.99%
1/101 • Number of events 1
0.00%
0/99
Musculoskeletal and connective tissue disorders
Arthralgia
0.00%
0/101
2.0%
2/99 • Number of events 3
Musculoskeletal and connective tissue disorders
Arthritis
0.99%
1/101 • Number of events 1
0.00%
0/99
Musculoskeletal and connective tissue disorders
Back pain
3.0%
3/101 • Number of events 3
5.1%
5/99 • Number of events 5
Musculoskeletal and connective tissue disorders
Bursitis
0.00%
0/101
1.0%
1/99 • Number of events 1
Musculoskeletal and connective tissue disorders
Exostosis
0.00%
0/101
1.0%
1/99 • Number of events 1
Musculoskeletal and connective tissue disorders
Intervertebral disc degeneration
0.99%
1/101 • Number of events 1
0.00%
0/99
Musculoskeletal and connective tissue disorders
Limb discomfort
0.00%
0/101
1.0%
1/99 • Number of events 1
Musculoskeletal and connective tissue disorders
Muscle spasms
0.00%
0/101
1.0%
1/99 • Number of events 1
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
0.00%
0/101
1.0%
1/99 • Number of events 1
Musculoskeletal and connective tissue disorders
Myalgia
2.0%
2/101 • Number of events 2
1.0%
1/99 • Number of events 1
Musculoskeletal and connective tissue disorders
Pain in extremity
0.00%
0/101
2.0%
2/99 • Number of events 2
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Neoplasm prostate
0.99%
1/101 • Number of events 1
0.00%
0/99
Nervous system disorders
Amnesia
0.99%
1/101 • Number of events 1
0.00%
0/99
Nervous system disorders
Dizziness
3.0%
3/101 • Number of events 3
0.00%
0/99
Nervous system disorders
Headache
3.0%
3/101 • Number of events 3
7.1%
7/99 • Number of events 7
Nervous system disorders
Nerve compression
0.00%
0/101
1.0%
1/99 • Number of events 1
Nervous system disorders
Paraesthesia
0.99%
1/101 • Number of events 1
0.00%
0/99
Nervous system disorders
Sciatica
0.00%
0/101
1.0%
1/99 • Number of events 1
Nervous system disorders
Syncope vasovagal
0.00%
0/101
1.0%
1/99 • Number of events 1
Psychiatric disorders
Nicotine dependence
0.99%
1/101 • Number of events 1
0.00%
0/99
Renal and urinary disorders
Dysuria
0.00%
0/101
1.0%
1/99 • Number of events 1
Renal and urinary disorders
Haematuria
0.99%
1/101 • Number of events 1
1.0%
1/99 • Number of events 1
Renal and urinary disorders
Urethral pain
0.00%
0/101
1.0%
1/99 • Number of events 1
Renal and urinary disorders
Urinary tract disorder
0.99%
1/101 • Number of events 1
0.00%
0/99
Reproductive system and breast disorders
Penis disorder
0.00%
0/101
1.0%
1/99 • Number of events 1
Reproductive system and breast disorders
Peyronie's disease
0.00%
0/101
1.0%
1/99 • Number of events 1
Reproductive system and breast disorders
Scrotal pain
0.99%
1/101 • Number of events 1
0.00%
0/99
Respiratory, thoracic and mediastinal disorders
Asthma
0.99%
1/101 • Number of events 1
0.00%
0/99
Respiratory, thoracic and mediastinal disorders
Cough
2.0%
2/101 • Number of events 2
1.0%
1/99 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Hyperventilation
0.99%
1/101 • Number of events 1
0.00%
0/99
Respiratory, thoracic and mediastinal disorders
Nasal congestion
0.99%
1/101 • Number of events 1
1.0%
1/99 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Pharyngolaryngeal pain
0.99%
1/101 • Number of events 1
0.00%
0/99
Respiratory, thoracic and mediastinal disorders
Respiratory tract congestion
0.00%
0/101
1.0%
1/99 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Sinus congestion
0.00%
0/101
1.0%
1/99 • Number of events 1
Skin and subcutaneous tissue disorders
Acne
0.99%
1/101 • Number of events 1
0.00%
0/99
Skin and subcutaneous tissue disorders
Rash
0.00%
0/101
2.0%
2/99 • Number of events 2
Surgical and medical procedures
Cataract operation
0.00%
0/101
1.0%
1/99 • Number of events 1
Surgical and medical procedures
Endodontic procedure
0.99%
1/101 • Number of events 1
0.00%
0/99
Surgical and medical procedures
Foot operation
0.00%
0/101
1.0%
1/99 • Number of events 1
Surgical and medical procedures
Tooth repair
0.99%
1/101 • Number of events 1
0.00%
0/99
Vascular disorders
Aortic aneurysm
0.00%
0/101
1.0%
1/99 • Number of events 1
Vascular disorders
Flushing
0.00%
0/101
1.0%
1/99 • Number of events 1

Additional Information

Chief Medical Officer

Eli Lilly and Company

Phone: 800-545-5979

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: GT60