Trial Outcomes & Findings for A Study for the Treatment of Diabetic Peripheral Neuropathic Pain (NCT NCT00552175)

NCT ID: NCT00552175

Last Updated: 2010-04-13

Results Overview

Average pain severity was measured using an 11-point numerical rating scale, collected by diaries and expressed as weekly mean. The scale is a self-reported instrument that measures the severity of pain based on the average pain over the past 24-hours. The severity scores range from 0 (no pain) to 10 (pain as severe as you can imagine).

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

339 participants

Primary outcome timeframe

Baseline, 12 weeks

Results posted on

2010-04-13

Participant Flow

Full Analysis Set Population consisted of all randomized patients who had at least one post-baseline measure of the primary efficacy variable.

Participant milestones

Participant milestones
Measure
Placebo
placebo comparator taken orally every day
Duloxetine 40 mg
Duloxetine 40 milligrams (mg) taken orally every day
Duloxetine 60 mg
Duloxetine 60 milligrams (mg) taken orally every day
Overall Study
STARTED
167
86
86
Overall Study
Full Analysis Set Population
167
85
86
Overall Study
COMPLETED
150
73
72
Overall Study
NOT COMPLETED
17
13
14

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo
placebo comparator taken orally every day
Duloxetine 40 mg
Duloxetine 40 milligrams (mg) taken orally every day
Duloxetine 60 mg
Duloxetine 60 milligrams (mg) taken orally every day
Overall Study
Lack of Efficacy
2
0
1
Overall Study
Adverse Event
9
9
10
Overall Study
Withdrawal by Subject
2
2
1
Overall Study
Lost to Follow-up
0
0
1
Overall Study
Entry Criteria Not Met
1
1
0
Overall Study
Reason Not Specified
3
1
1

Baseline Characteristics

A Study for the Treatment of Diabetic Peripheral Neuropathic Pain

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=167 Participants
placebo comparator taken orally every day
Duloxetine 40 mg
n=85 Participants
Duloxetine 40 milligrams (mg) taken orally every day
Duloxetine 60 mg
n=86 Participants
Duloxetine 60 milligrams (mg) taken orally every day
Total
n=338 Participants
Total of all reporting groups
Age Continuous
60.8 years
STANDARD_DEVIATION 9.2 • n=93 Participants
62.1 years
STANDARD_DEVIATION 9.3 • n=4 Participants
59.7 years
STANDARD_DEVIATION 12.1 • n=27 Participants
60.8 years
STANDARD_DEVIATION 10 • n=483 Participants
Sex: Female, Male
Female
38 Participants
n=93 Participants
20 Participants
n=4 Participants
24 Participants
n=27 Participants
82 Participants
n=483 Participants
Sex: Female, Male
Male
129 Participants
n=93 Participants
65 Participants
n=4 Participants
62 Participants
n=27 Participants
256 Participants
n=483 Participants
Race/Ethnicity, Customized
Japanese
167 participants
n=93 Participants
85 participants
n=4 Participants
86 participants
n=27 Participants
338 participants
n=483 Participants
Region of Enrollment
Japan
167 participants
n=93 Participants
85 participants
n=4 Participants
86 participants
n=27 Participants
338 participants
n=483 Participants
Duration of Diabetes
<5 years
33 participants
n=93 Participants
20 participants
n=4 Participants
16 participants
n=27 Participants
69 participants
n=483 Participants
Duration of Diabetes
5 - 10 years
32 participants
n=93 Participants
18 participants
n=4 Participants
14 participants
n=27 Participants
64 participants
n=483 Participants
Duration of Diabetes
>= 10 years
97 participants
n=93 Participants
47 participants
n=4 Participants
56 participants
n=27 Participants
200 participants
n=483 Participants
Duration of Diabetes
Unknown
5 participants
n=93 Participants
0 participants
n=4 Participants
0 participants
n=27 Participants
5 participants
n=483 Participants
Type of Diabetes
Type I
8 participants
n=93 Participants
5 participants
n=4 Participants
4 participants
n=27 Participants
17 participants
n=483 Participants
Type of Diabetes
Type II
159 participants
n=93 Participants
80 participants
n=4 Participants
82 participants
n=27 Participants
321 participants
n=483 Participants
Beck Depression Inventory-II (BDI-II)
8.8 units on a scale
STANDARD_DEVIATION 6.8 • n=93 Participants
9.4 units on a scale
STANDARD_DEVIATION 8.8 • n=4 Participants
9.4 units on a scale
STANDARD_DEVIATION 7.2 • n=27 Participants
9.1 units on a scale
STANDARD_DEVIATION 7.4 • n=483 Participants
Body Mass Index (BMI)
23.90 kilograms/square meters (kg/m^2)
STANDARD_DEVIATION 3.70 • n=93 Participants
23.27 kilograms/square meters (kg/m^2)
STANDARD_DEVIATION 3.67 • n=4 Participants
24.20 kilograms/square meters (kg/m^2)
STANDARD_DEVIATION 3.50 • n=27 Participants
23.82 kilograms/square meters (kg/m^2)
STANDARD_DEVIATION 3.65 • n=483 Participants
Brief Pain Inventory (BPI) Interference Scores
General Activity
4.4 units on a scale
STANDARD_DEVIATION 2.4 • n=93 Participants
4.5 units on a scale
STANDARD_DEVIATION 2.7 • n=4 Participants
4.5 units on a scale
STANDARD_DEVIATION 2.4 • n=27 Participants
4.5 units on a scale
STANDARD_DEVIATION 2.5 • n=483 Participants
Brief Pain Inventory (BPI) Interference Scores
Mood
4.2 units on a scale
STANDARD_DEVIATION 2.4 • n=93 Participants
3.9 units on a scale
STANDARD_DEVIATION 2.5 • n=4 Participants
4.2 units on a scale
STANDARD_DEVIATION 2.5 • n=27 Participants
4.1 units on a scale
STANDARD_DEVIATION 2.5 • n=483 Participants
Brief Pain Inventory (BPI) Interference Scores
Walking Ability
4.0 units on a scale
STANDARD_DEVIATION 2.6 • n=93 Participants
4.4 units on a scale
STANDARD_DEVIATION 2.8 • n=4 Participants
4.3 units on a scale
STANDARD_DEVIATION 2.5 • n=27 Participants
4.2 units on a scale
STANDARD_DEVIATION 2.6 • n=483 Participants
Brief Pain Inventory (BPI) Interference Scores
Normal Work
3.7 units on a scale
STANDARD_DEVIATION 2.7 • n=93 Participants
3.9 units on a scale
STANDARD_DEVIATION 2.6 • n=4 Participants
4.3 units on a scale
STANDARD_DEVIATION 2.5 • n=27 Participants
3.9 units on a scale
STANDARD_DEVIATION 2.6 • n=483 Participants
Brief Pain Inventory (BPI) Interference Scores
Relation to People
2.6 units on a scale
STANDARD_DEVIATION 2.5 • n=93 Participants
2.7 units on a scale
STANDARD_DEVIATION 2.7 • n=4 Participants
2.9 units on a scale
STANDARD_DEVIATION 2.4 • n=27 Participants
2.7 units on a scale
STANDARD_DEVIATION 2.5 • n=483 Participants
Brief Pain Inventory (BPI) Interference Scores
Sleep
3.9 units on a scale
STANDARD_DEVIATION 2.7 • n=93 Participants
4.0 units on a scale
STANDARD_DEVIATION 2.8 • n=4 Participants
4.3 units on a scale
STANDARD_DEVIATION 2.7 • n=27 Participants
4.0 units on a scale
STANDARD_DEVIATION 2.7 • n=483 Participants
Brief Pain Inventory (BPI) Interference Scores
Enjoyment of Life
3.5 units on a scale
STANDARD_DEVIATION 2.5 • n=93 Participants
3.7 units on a scale
STANDARD_DEVIATION 2.7 • n=4 Participants
4.0 units on a scale
STANDARD_DEVIATION 2.5 • n=27 Participants
3.7 units on a scale
STANDARD_DEVIATION 2.6 • n=483 Participants
Brief Pain Inventory (BPI) Interference Scores
Average of Interference Scores
3.75 units on a scale
STANDARD_DEVIATION 2.15 • n=93 Participants
3.88 units on a scale
STANDARD_DEVIATION 2.25 • n=4 Participants
4.09 units on a scale
STANDARD_DEVIATION 2.13 • n=27 Participants
3.87 units on a scale
STANDARD_DEVIATION 2.17 • n=483 Participants
Brief Pain Inventory (BPI) Severity Scores
Worst Pain
6.7 units on a scale
STANDARD_DEVIATION 1.4 • n=93 Participants
6.5 units on a scale
STANDARD_DEVIATION 1.4 • n=4 Participants
6.6 units on a scale
STANDARD_DEVIATION 1.5 • n=27 Participants
6.6 units on a scale
STANDARD_DEVIATION 1.4 • n=483 Participants
Brief Pain Inventory (BPI) Severity Scores
Least Pain
4.1 units on a scale
STANDARD_DEVIATION 1.8 • n=93 Participants
4.0 units on a scale
STANDARD_DEVIATION 1.8 • n=4 Participants
4.2 units on a scale
STANDARD_DEVIATION 1.6 • n=27 Participants
4.1 units on a scale
STANDARD_DEVIATION 1.8 • n=483 Participants
Brief Pain Inventory (BPI) Severity Scores
Average Pain
5.6 units on a scale
STANDARD_DEVIATION 1.3 • n=93 Participants
5.6 units on a scale
STANDARD_DEVIATION 1.3 • n=4 Participants
5.7 units on a scale
STANDARD_DEVIATION 1.3 • n=27 Participants
5.6 units on a scale
STANDARD_DEVIATION 1.3 • n=483 Participants
Brief Pain Inventory (BPI) Severity Scores
Pain Right Now
5.1 units on a scale
STANDARD_DEVIATION 1.7 • n=93 Participants
5.2 units on a scale
STANDARD_DEVIATION 1.8 • n=4 Participants
5.3 units on a scale
STANDARD_DEVIATION 1.4 • n=27 Participants
5.2 units on a scale
STANDARD_DEVIATION 1.7 • n=483 Participants
Duration of Diabetic Neuropathy
4.21 years
STANDARD_DEVIATION 4.44 • n=93 Participants
4.58 years
STANDARD_DEVIATION 3.90 • n=4 Participants
4.16 years
STANDARD_DEVIATION 3.67 • n=27 Participants
4.29 years
STANDARD_DEVIATION 4.11 • n=483 Participants
Height
164.13 centimeters (cm)
STANDARD_DEVIATION 8.65 • n=93 Participants
163.63 centimeters (cm)
STANDARD_DEVIATION 8.78 • n=4 Participants
164.02 centimeters (cm)
STANDARD_DEVIATION 7.32 • n=27 Participants
163.98 centimeters (cm)
STANDARD_DEVIATION 8.34 • n=483 Participants
Weekly Means of 24-Hour Average Pain, Worst Pain, and Night Pain Diary Scores
Average Pain Score
5.78 units on a scale
STANDARD_DEVIATION 1.17 • n=93 Participants
5.79 units on a scale
STANDARD_DEVIATION 1.23 • n=4 Participants
5.76 units on a scale
STANDARD_DEVIATION 1.17 • n=27 Participants
5.78 units on a scale
STANDARD_DEVIATION 1.18 • n=483 Participants
Weekly Means of 24-Hour Average Pain, Worst Pain, and Night Pain Diary Scores
Worst Pain Score
6.66 units on a scale
STANDARD_DEVIATION 1.25 • n=93 Participants
6.54 units on a scale
STANDARD_DEVIATION 1.33 • n=4 Participants
6.61 units on a scale
STANDARD_DEVIATION 1.33 • n=27 Participants
6.62 units on a scale
STANDARD_DEVIATION 1.29 • n=483 Participants
Weekly Means of 24-Hour Average Pain, Worst Pain, and Night Pain Diary Scores
Night Pain Score
5.5 units on a scale
STANDARD_DEVIATION 1.49 • n=93 Participants
5.55 units on a scale
STANDARD_DEVIATION 1.64 • n=4 Participants
5.69 units on a scale
STANDARD_DEVIATION 1.54 • n=27 Participants
5.56 units on a scale
STANDARD_DEVIATION 1.54 • n=483 Participants
Weight
64.52 kilograms (kg)
STANDARD_DEVIATION 11.93 • n=93 Participants
62.72 kilograms (kg)
STANDARD_DEVIATION 13.35 • n=4 Participants
65.08 kilograms (kg)
STANDARD_DEVIATION 10.23 • n=27 Participants
64.21 kilograms (kg)
STANDARD_DEVIATION 11.9 • n=483 Participants

PRIMARY outcome

Timeframe: Baseline, 12 weeks

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

Average pain severity was measured using an 11-point numerical rating scale, collected by diaries and expressed as weekly mean. The scale is a self-reported instrument that measures the severity of pain based on the average pain over the past 24-hours. The severity scores range from 0 (no pain) to 10 (pain as severe as you can imagine).

Outcome measures

Outcome measures
Measure
Placebo
n=167 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=171 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
Duloxetine 60 milligrams (mg) taken orally every day
Change From Baseline at Week 12 in Average Pain Severity Rating Using Diaries for the Combined Duloxetine Arms (40 mg + 60 mg)
-1.61 units on a scale
Standard Error 0.18
-2.47 units on a scale
Standard Error 0.18

SECONDARY outcome

Timeframe: Baseline, 12 weeks

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

Average pain severity was measured using an 11-point numerical rating scale, collected by diaries and expressed as weekly mean. The scale is a self-reported instrument that measures the severity of pain based on the average pain over the past 24-hours. The severity scores range from 0 (no pain) to 10 (pain as severe as you can imagine).

Outcome measures

Outcome measures
Measure
Placebo
n=167 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=85 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
n=86 Participants
Duloxetine 60 milligrams (mg) taken orally every day
Change From Baseline at Week 12 in Average Pain Severity Rating Score Using Diaries
-1.61 units on a scale
Standard Error 0.19
-2.41 units on a scale
Standard Error 0.21
-2.53 units on a scale
Standard Error 0.21

SECONDARY outcome

Timeframe: Baseline, 12 weeks

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

Pain severity for worst pain and night pain as measured by an 11-point numerical rating scale, collected by diaries and expressed as weekly means. A self-reported scale that measures the severity of pain based on the worst pain and night pain experienced over the past 24-hours. The worst pain and night pain severity scores each range from 0 (no pain) to 10 (pain as severe as you can imagine).

Outcome measures

Outcome measures
Measure
Placebo
n=167 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=171 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
Duloxetine 60 milligrams (mg) taken orally every day
Change From Baseline at Week 12 in Worst Pain Severity Score and Night Pain Severity Score Using Diaries for the Combined Duloxetine Arms (40 mg + 60 mg)
Night Pain
-1.56 units on a scale
Standard Error 0.19
-2.39 units on a scale
Standard Error 0.19
Change From Baseline at Week 12 in Worst Pain Severity Score and Night Pain Severity Score Using Diaries for the Combined Duloxetine Arms (40 mg + 60 mg)
Worst Pain
-1.55 units on a scale
Standard Error 0.19
-2.51 units on a scale
Standard Error 0.19

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

Pain severity for worst pain and night pain as measured by an 11-point numerical rating scale, collected by diaries and expressed as weekly means. A self-reported scale that measures the severity of pain based on the worst pain and night pain experienced over the past 24-hours. The worst pain and night pain severity scores each range from 0 (no pain) to 10 (pain as severe as you can imagine).

Outcome measures

Outcome measures
Measure
Placebo
n=167 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=85 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
n=86 Participants
Duloxetine 60 milligrams (mg) taken orally every day
Change From Baseline at Week 12 in Worst Pain Severity Score and Night Pain Severity Score Using Diaries
Worst Pain
-1.55 units on a scale
Standard Error 0.19
-2.42 units on a scale
Standard Error 0.22
-2.59 units on a scale
Standard Error 0.22
Change From Baseline at Week 12 in Worst Pain Severity Score and Night Pain Severity Score Using Diaries
Night Pain
-1.56 units on a scale
Standard Error 0.19
-2.33 units on a scale
Standard Error 0.22
-2.45 units on a scale
Standard Error 0.23

SECONDARY outcome

Timeframe: Week 12

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

A scale that measures the patient's perception of improvement at the time of assessment compared with the start of treatment. The score ranges from 1 (very much better) to 7 (very much worse).

Outcome measures

Outcome measures
Measure
Placebo
n=165 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=169 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
Duloxetine 60 milligrams (mg) taken orally every day
Patient Global Impression of Improvement Scale at Week 12 in Combined Duloxetine Arms (40 mg + 60 mg)
3.18 units on a scale
Standard Error 0.12
2.53 units on a scale
Standard Error 0.12

SECONDARY outcome

Timeframe: Week 12

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

A scale that measures the patient's perception of improvement at the time of assessment compared with the start of treatment. The score ranges from 1 (very much better) to 7 (very much worse).

Outcome measures

Outcome measures
Measure
Placebo
n=165 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=84 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
n=85 Participants
Duloxetine 60 milligrams (mg) taken orally every day
Patient Global Impression of Improvement Scale at Week 12
3.18 units on a scale
Standard Error 0.12
2.53 units on a scale
Standard Error 0.14
2.52 units on a scale
Standard Error 0.14

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

A self-reported scale that measures the severity of pain. The severity scores range from 0 (no pain) to 10 (pain as severe as you can imagine). There are 4 questions assessing worst pain, least pain, and average pain in the past 24 hours, and the pain right now. Each question has a total range of scores from 0 to 10.

Outcome measures

Outcome measures
Measure
Placebo
n=165 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=169 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
Duloxetine 60 milligrams (mg) taken orally every day
Change From Baseline in Brief Pain Inventory Severity Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Worst Pain
-1.62 units on a scale
Standard Error 0.21
-2.59 units on a scale
Standard Error 0.21
Change From Baseline in Brief Pain Inventory Severity Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Least Pain
-1.13 units on a scale
Standard Error 0.21
-1.98 units on a scale
Standard Error 0.21
Change From Baseline in Brief Pain Inventory Severity Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Average Pain
-1.54 units on a scale
Standard Error 0.2
-2.54 units on a scale
Standard Error 0.2
Change From Baseline in Brief Pain Inventory Severity Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Pain Right Now
-1.67 units on a scale
Standard Error 0.22
-2.59 units on a scale
Standard Error 0.22

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

A self-reported scale that measures the severity of pain. The severity scores range from 0 (no pain) to 10 (pain as severe as you can imagine). There are 4 questions assessing worst pain, least pain, and average pain in the past 24 hours, and the pain right now. Each question has a total range of scores from 0 to 10.

Outcome measures

Outcome measures
Measure
Placebo
n=165 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=84 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
n=85 Participants
Duloxetine 60 milligrams (mg) taken orally every day
Change From Baseline in Brief Pain Inventory Severity Scores at Week 12
Worst Pain
-1.62 units on a scale
Standard Error 0.21
-2.51 units on a scale
Standard Error 0.25
-2.68 units on a scale
Standard Error 0.25
Change From Baseline in Brief Pain Inventory Severity Scores at Week 12
Least Pain
-1.13 units on a scale
Standard Error 0.21
-1.92 units on a scale
Standard Error 0.25
-2.04 units on a scale
Standard Error 0.25
Change From Baseline in Brief Pain Inventory Severity Scores at Week 12
Average Pain
-1.55 units on a scale
Standard Error 0.2
-2.53 units on a scale
Standard Error 0.23
-2.56 units on a scale
Standard Error 0.23
Change From Baseline in Brief Pain Inventory Severity Scores at Week 12
Pain Right Now
-1.67 units on a scale
Standard Error 0.22
-2.55 units on a scale
Standard Error 0.25
-2.62 units on a scale
Standard Error 0.26

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

The Interference scores range from 0 (does not interfere) to 10 (completely interferes). There are 7 questions assessing the interference of pain in the past 24 hours for general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life. Each question has a total range of scores from 0 to 10.

Outcome measures

Outcome measures
Measure
Placebo
n=165 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=169 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
Duloxetine 60 milligrams (mg) taken orally every day
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
General Activity
-1.88 units on a scale
Standard Error 0.24
-2.29 units on a scale
Standard Error 0.24
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Mood
-1.91 units on a scale
Standard Error 0.24
-2.28 units on a scale
Standard Error 0.24
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Walking Ability
-1.82 units on a scale
Standard Error 0.23
-2.31 units on a scale
Standard Error 0.23
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Normal Work
-1.49 units on a scale
Standard Error 0.23
-1.86 units on a scale
Standard Error 0.23
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Relation to People
-0.77 units on a scale
Standard Error 0.23
-1.32 units on a scale
Standard Error 0.23
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Sleep
-1.69 units on a scale
Standard Error 0.24
-2.15 units on a scale
Standard Error 0.24
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Enjoyment of Life
-1.59 units on a scale
Standard Error 0.23
-2.15 units on a scale
Standard Error 0.23
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
Average of Interference Scores
-1.56 units on a scale
Standard Error 0.2
-2.04 units on a scale
Standard Error 0.2

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

The Interference scores range from 0 (does not interfere) to 10 (completely interferes). There are 7 questions assessing the interference of pain in the past 24 hours for general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life. Each question has a total range of scores from 0 to 10.

Outcome measures

Outcome measures
Measure
Placebo
n=165 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=84 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
n=85 Participants
Duloxetine 60 milligrams (mg) taken orally every day
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12
Relation to People
-0.77 units on a scale
Standard Error 0.23
-1.16 units on a scale
Standard Error 0.27
-1.49 units on a scale
Standard Error 0.27
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12
General Activity
-1.88 units on a scale
Standard Error 0.24
-2.48 units on a scale
Standard Error 0.29
-2.1 units on a scale
Standard Error 0.29
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12
Mood
-1.91 units on a scale
Standard Error 0.24
-2.18 units on a scale
Standard Error 0.29
-2.39 units on a scale
Standard Error 0.29
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12
Walking Ability
-1.82 units on a scale
Standard Error 0.23
-2.32 units on a scale
Standard Error 0.28
-2.31 units on a scale
Standard Error 0.28
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12
Normal Work
-1.49 units on a scale
Standard Error 0.23
-1.84 units on a scale
Standard Error 0.28
-1.9 units on a scale
Standard Error 0.28
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12
Sleep
-1.69 units on a scale
Standard Error 0.24
-2.26 units on a scale
Standard Error 0.29
-2.05 units on a scale
Standard Error 0.29
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12
Enjoyment of Life
-1.59 units on a scale
Standard Error 0.23
-1.96 units on a scale
Standard Error 0.28
-2.35 units on a scale
Standard Error 0.28
Change From Baseline in Brief Pain Inventory Interference Scores at Week 12
Average of Interference Scores
-1.56 units on a scale
Standard Error 0.2
-2 units on a scale
Standard Error 0.24
-2.08 units on a scale
Standard Error 0.24

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

A 21-item, patient-completed questionnaire to assess characteristics of depression. Each of the 21 items corresponding to a symptom of depression is summed to give a single score. There is a four-point scale for each item ranging from 0 to 3. Total score ranges from 0 (no depression) to 63 (severe depression).

Outcome measures

Outcome measures
Measure
Placebo
n=165 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=169 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
Duloxetine 60 milligrams (mg) taken orally every day
Change From Baseline in Beck Depression Inventory-II (BDI-II) Total Score at Week 12 for the Combined Duloxetine Arms (40 mg + 60 mg)
-3.27 units on a scale
Standard Error 0.64
-3.37 units on a scale
Standard Error 0.64

SECONDARY outcome

Timeframe: Baseline, Week 12

Population: Patients in the Full Analysis Set Population who had a post-baseline measurement in the variable being presented.

A 21-item, patient-completed questionnaire to assess characteristics of depression. Each of the 21 items corresponding to a symptom of depression is summed to give a single score. There is a four-point scale for each item ranging from 0 to 3. Total score ranges from 0 (no depression) to 63 (severe depression).

Outcome measures

Outcome measures
Measure
Placebo
n=165 Participants
placebo comparator taken orally every day
Duloxetine 40 mg and 60 mg Combined
n=84 Participants
Duloxetine 40 milligrams (mg) taken orally every day, and Duloxetine 60 mg taken orally every day.
Duloxetine 60 mg
n=85 Participants
Duloxetine 60 milligrams (mg) taken orally every day
Change From Baseline in Beck Depression Inventory-II (BDI-II) Total Score at Week 12
-3.28 units on a scale
Standard Error 0.65
-2.94 units on a scale
Standard Error 0.76
-3.83 units on a scale
Standard Error 0.77

Adverse Events

Placebo

Serious events: 6 serious events
Other events: 121 other events
Deaths: 0 deaths

Duloxetine 40 mg

Serious events: 3 serious events
Other events: 71 other events
Deaths: 0 deaths

Duloxetine 60 mg

Serious events: 2 serious events
Other events: 73 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
n=167 participants at risk
placebo comparator taken orally every day
Duloxetine 40 mg
n=85 participants at risk
Duloxetine 40 milligrams (mg) taken orally every day
Duloxetine 60 mg
n=86 participants at risk
Duloxetine 60 milligrams (mg) taken orally every day
Hepatobiliary disorders
Hepatic function abnormal
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Infections and infestations
Arthritis bacterial
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Infections and infestations
Epiglottitis
0.00%
0/167
0.00%
0/85
1.2%
1/86 • Number of events 1
Infections and infestations
Osteomyelitis
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Infections and infestations
Sepsis
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Infections and infestations
Tuberculous pleurisy
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Injury, poisoning and procedural complications
Alcohol poisoning
0.00%
0/167
1.2%
1/85 • Number of events 1
0.00%
0/86
Injury, poisoning and procedural complications
Back injury
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Injury, poisoning and procedural complications
Contusion
0.00%
0/167
1.2%
1/85 • Number of events 1
0.00%
0/86
Injury, poisoning and procedural complications
Ulna fracture
0.00%
0/167
1.2%
1/85 • Number of events 1
0.00%
0/86
Investigations
Blood alkaline phosphatase increased
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Investigations
Blood bilirubin increased
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Investigations
C-reactive protein increased
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Investigations
Gamma-glutamyltransferase increased
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Investigations
Platelet count increased
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Investigations
Urine albumin/creatinine ratio increased
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Metabolism and nutrition disorders
Hypoglycaemia
0.00%
0/167
1.2%
1/85 • Number of events 1
0.00%
0/86
Musculoskeletal and connective tissue disorders
Pathological fracture
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Nervous system disorders
Cerebral infarction
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Nervous system disorders
Facial palsy
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Nervous system disorders
Hemiparesis
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Nervous system disorders
Radiculopathy
0.00%
0/167
0.00%
0/85
1.2%
1/86 • Number of events 1
Nervous system disorders
Thalamus haemorrhage
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86
Psychiatric disorders
Self injurious behaviour
0.00%
0/167
0.00%
0/85
1.2%
1/86 • Number of events 1
Renal and urinary disorders
Renal failure acute
0.60%
1/167 • Number of events 1
0.00%
0/85
0.00%
0/86

Other adverse events

Other adverse events
Measure
Placebo
n=167 participants at risk
placebo comparator taken orally every day
Duloxetine 40 mg
n=85 participants at risk
Duloxetine 40 milligrams (mg) taken orally every day
Duloxetine 60 mg
n=86 participants at risk
Duloxetine 60 milligrams (mg) taken orally every day
Ear and labyrinth disorders
Tinnitus
0.00%
0/167
4.7%
4/85 • Number of events 4
1.2%
1/86 • Number of events 1
Gastrointestinal disorders
Constipation
5.4%
9/167 • Number of events 9
7.1%
6/85 • Number of events 6
5.8%
5/86 • Number of events 6
Gastrointestinal disorders
Diarrhoea
3.6%
6/167 • Number of events 6
4.7%
4/85 • Number of events 5
8.1%
7/86 • Number of events 7
Gastrointestinal disorders
Nausea
1.8%
3/167 • Number of events 3
11.8%
10/85 • Number of events 11
16.3%
14/86 • Number of events 17
Gastrointestinal disorders
Stomach discomfort
2.4%
4/167 • Number of events 4
3.5%
3/85 • Number of events 4
4.7%
4/86 • Number of events 4
Gastrointestinal disorders
Vomiting
1.2%
2/167 • Number of events 2
4.7%
4/85 • Number of events 5
5.8%
5/86 • Number of events 7
General disorders
Malaise
1.8%
3/167 • Number of events 3
3.5%
3/85 • Number of events 3
7.0%
6/86 • Number of events 7
General disorders
Thirst
1.8%
3/167 • Number of events 3
4.7%
4/85 • Number of events 4
4.7%
4/86 • Number of events 4
Infections and infestations
Nasopharyngitis
14.4%
24/167 • Number of events 24
11.8%
10/85 • Number of events 11
16.3%
14/86 • Number of events 16
Investigations
Alanine aminotransferase increased
3.6%
6/167 • Number of events 6
5.9%
5/85 • Number of events 5
5.8%
5/86 • Number of events 5
Investigations
Aspartate aminotransferase increased
3.6%
6/167 • Number of events 6
5.9%
5/85 • Number of events 5
9.3%
8/86 • Number of events 8
Investigations
Blood alkaline phosphatase increased
0.60%
1/167 • Number of events 1
4.7%
4/85 • Number of events 4
2.3%
2/86 • Number of events 2
Investigations
Blood creatine phosphokinase increased
3.6%
6/167 • Number of events 6
7.1%
6/85 • Number of events 6
0.00%
0/86
Investigations
Blood glucose decreased
4.2%
7/167 • Number of events 15
2.4%
2/85 • Number of events 4
2.3%
2/86 • Number of events 2
Investigations
Blood lactate dehydrogenase increased
2.4%
4/167 • Number of events 4
2.4%
2/85 • Number of events 2
5.8%
5/86 • Number of events 5
Investigations
Gamma-glutamyltransferase increased
2.4%
4/167 • Number of events 4
2.4%
2/85 • Number of events 2
5.8%
5/86 • Number of events 5
Investigations
Glycosylated haemoglobin increased
2.4%
4/167 • Number of events 4
1.2%
1/85 • Number of events 1
5.8%
5/86 • Number of events 5
Investigations
White blood cell count increased
2.4%
4/167 • Number of events 4
4.7%
4/85 • Number of events 4
5.8%
5/86 • Number of events 5
Metabolism and nutrition disorders
Decreased appetite
0.00%
0/167
1.2%
1/85 • Number of events 1
4.7%
4/86 • Number of events 4
Nervous system disorders
Dizziness
1.2%
2/167 • Number of events 3
7.1%
6/85 • Number of events 8
4.7%
4/86 • Number of events 4
Nervous system disorders
Headache
3.6%
6/167 • Number of events 9
4.7%
4/85 • Number of events 4
2.3%
2/86 • Number of events 3
Nervous system disorders
Somnolence
8.4%
14/167 • Number of events 14
18.8%
16/85 • Number of events 16
24.4%
21/86 • Number of events 23
Skin and subcutaneous tissue disorders
Eczema
3.0%
5/167 • Number of events 5
4.7%
4/85 • Number of events 4
1.2%
1/86 • Number of events 1
Vascular disorders
Orthostatic hypotension
0.60%
1/167 • Number of events 1
1.2%
1/85 • Number of events 1
4.7%
4/86 • Number of events 4

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