Trial Outcomes & Findings for Duloxetine Versus Placebo in Chronic Low Back Pain (NCT NCT00408876)

NCT ID: NCT00408876

Last Updated: 2009-12-29

Results Overview

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 1), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

404 participants

Primary outcome timeframe

Baseline, Week 1

Results posted on

2009-12-29

Participant Flow

Participant milestones

Participant milestones
Measure
Duloxetine 20 mg
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
placebo once a day (QD), by mouth (PO) for 13 weeks
Overall Study
STARTED
59
116
112
117
Overall Study
COMPLETED
43
80
62
82
Overall Study
NOT COMPLETED
16
36
50
35

Reasons for withdrawal

Reasons for withdrawal
Measure
Duloxetine 20 mg
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
placebo once a day (QD), by mouth (PO) for 13 weeks
Overall Study
Adverse Event
9
17
27
10
Overall Study
Withdrawal by Subject
3
6
6
14
Overall Study
Lack of Efficacy
2
4
5
6
Overall Study
Lost to Follow-up
1
6
5
2
Overall Study
Protocol Violation
0
3
4
3
Overall Study
Physician Decision
1
0
3
0

Baseline Characteristics

Duloxetine Versus Placebo in Chronic Low Back Pain

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Duloxetine 20 mg
n=59 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=116 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=112 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=117 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Total
n=404 Participants
Total of all reporting groups
Age Continuous
52.93 years
STANDARD_DEVIATION 12.81 • n=5 Participants
53.32 years
STANDARD_DEVIATION 14.69 • n=7 Participants
54.92 years
STANDARD_DEVIATION 14.77 • n=5 Participants
53.97 years
STANDARD_DEVIATION 13.52 • n=4 Participants
53.89 years
STANDARD_DEVIATION 14.09 • n=21 Participants
Sex: Female, Male
Female
36 Participants
n=5 Participants
67 Participants
n=7 Participants
65 Participants
n=5 Participants
64 Participants
n=4 Participants
232 Participants
n=21 Participants
Sex: Female, Male
Male
23 Participants
n=5 Participants
49 Participants
n=7 Participants
47 Participants
n=5 Participants
53 Participants
n=4 Participants
172 Participants
n=21 Participants
Region of Enrollment
United States
46 participants
n=5 Participants
92 participants
n=7 Participants
85 participants
n=5 Participants
93 participants
n=4 Participants
316 participants
n=21 Participants
Region of Enrollment
Argentina
13 participants
n=5 Participants
24 participants
n=7 Participants
27 participants
n=5 Participants
24 participants
n=4 Participants
88 participants
n=21 Participants
Race/Ethnicity
African
7 participants
n=5 Participants
11 participants
n=7 Participants
5 participants
n=5 Participants
10 participants
n=4 Participants
33 participants
n=21 Participants
Race/Ethnicity
Caucasian
46 participants
n=5 Participants
91 participants
n=7 Participants
92 participants
n=5 Participants
93 participants
n=4 Participants
322 participants
n=21 Participants
Race/Ethnicity
East Asian
0 participants
n=5 Participants
1 participants
n=7 Participants
1 participants
n=5 Participants
1 participants
n=4 Participants
3 participants
n=21 Participants
Race/Ethnicity
Hispanic
6 participants
n=5 Participants
13 participants
n=7 Participants
11 participants
n=5 Participants
11 participants
n=4 Participants
41 participants
n=21 Participants
Race/Ethnicity
West Asian
0 participants
n=5 Participants
0 participants
n=7 Participants
3 participants
n=5 Participants
1 participants
n=4 Participants
4 participants
n=21 Participants
Race/Ethnicity
Native American
0 participants
n=5 Participants
0 participants
n=7 Participants
0 participants
n=5 Participants
1 participants
n=4 Participants
1 participants
n=21 Participants
Beck Depression Inventory-II Total Score
6.02 units on a scale
STANDARD_DEVIATION 6.33 • n=5 Participants
7.05 units on a scale
STANDARD_DEVIATION 7.17 • n=7 Participants
5.20 units on a scale
STANDARD_DEVIATION 5.00 • n=5 Participants
6.15 units on a scale
STANDARD_DEVIATION 7.52 • n=4 Participants
6.12 units on a scale
STANDARD_DEVIATION 6.64 • n=21 Participants
Body Mass Index
30.42 kilograms/square meters (kg/m^2)
STANDARD_DEVIATION 4.54 • n=5 Participants
28.85 kilograms/square meters (kg/m^2)
STANDARD_DEVIATION 4.73 • n=7 Participants
29.23 kilograms/square meters (kg/m^2)
STANDARD_DEVIATION 4.68 • n=5 Participants
28.67 kilograms/square meters (kg/m^2)
STANDARD_DEVIATION 4.89 • n=4 Participants
29.13 kilograms/square meters (kg/m^2)
STANDARD_DEVIATION 4.75 • n=21 Participants
Brief Pain Inventory (BPI) 24-Hour Average Pain Score
6.34 units on a scale
STANDARD_DEVIATION 1.64 • n=5 Participants
5.93 units on a scale
STANDARD_DEVIATION 1.67 • n=7 Participants
6.04 units on a scale
STANDARD_DEVIATION 1.63 • n=5 Participants
6.14 units on a scale
STANDARD_DEVIATION 1.66 • n=4 Participants
6.08 units on a scale
STANDARD_DEVIATION 1.65 • n=21 Participants
Clinical Global Impressions of Severity (CGI-S) Scale
4.05 units on a scale
STANDARD_DEVIATION 1.41 • n=5 Participants
3.54 units on a scale
STANDARD_DEVIATION 1.40 • n=7 Participants
3.58 units on a scale
STANDARD_DEVIATION 1.33 • n=5 Participants
3.66 units on a scale
STANDARD_DEVIATION 1.30 • n=4 Participants
3.66 units on a scale
STANDARD_DEVIATION 1.36 • n=21 Participants
Duration of Chronic Low Back Pain
12.50 years
STANDARD_DEVIATION 11.65 • n=5 Participants
10.48 years
STANDARD_DEVIATION 11.07 • n=7 Participants
13.94 years
STANDARD_DEVIATION 12.97 • n=5 Participants
10.29 years
STANDARD_DEVIATION 9.53 • n=4 Participants
11.68 years
STANDARD_DEVIATION 11.38 • n=21 Participants
Patient Global Impressions of Severity (PGI-S) Scale
2.78 units on a scale
STANDARD_DEVIATION 1.69 • n=5 Participants
2.63 units on a scale
STANDARD_DEVIATION 1.78 • n=7 Participants
2.25 units on a scale
STANDARD_DEVIATION 1.58 • n=5 Participants
2.38 units on a scale
STANDARD_DEVIATION 1.60 • n=4 Participants
2.48 units on a scale
STANDARD_DEVIATION 1.67 • n=21 Participants
Roland-Morris Disability Questionnaire Total Score
10.00 units on a scale
STANDARD_DEVIATION 4.82 • n=5 Participants
8.91 units on a scale
STANDARD_DEVIATION 4.56 • n=7 Participants
8.72 units on a scale
STANDARD_DEVIATION 4.82 • n=5 Participants
8.32 units on a scale
STANDARD_DEVIATION 4.92 • n=4 Participants
8.85 units on a scale
STANDARD_DEVIATION 4.79 • n=21 Participants
Weekly Mean of 24-Hour Average Pain Severity
6.42 units on a scale
STANDARD_DEVIATION 1.39 • n=5 Participants
6.18 units on a scale
STANDARD_DEVIATION 1.44 • n=7 Participants
6.06 units on a scale
STANDARD_DEVIATION 1.45 • n=5 Participants
6.18 units on a scale
STANDARD_DEVIATION 1.25 • n=4 Participants
6.18 units on a scale
STANDARD_DEVIATION 1.38 • n=21 Participants
Weekly Mean of 24-Hour Worst Pain Severity
7.41 units on a scale
STANDARD_DEVIATION 1.31 • n=5 Participants
7.22 units on a scale
STANDARD_DEVIATION 1.32 • n=7 Participants
7.22 units on a scale
STANDARD_DEVIATION 1.27 • n=5 Participants
7.35 units on a scale
STANDARD_DEVIATION 1.20 • n=4 Participants
7.29 units on a scale
STANDARD_DEVIATION 1.27 • n=21 Participants

PRIMARY outcome

Timeframe: Baseline, Week 1

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 1), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=104 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=110 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 1 in Weekly Mean of the 24-hour Average Pain Scores
-0.54 units on a scale
Standard Error 0.18
-0.53 units on a scale
Standard Error 0.13
-0.71 units on a scale
Standard Error 0.13
-0.39 units on a scale
Standard Error 0.13

PRIMARY outcome

Timeframe: Baseline, Week 2

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 2), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=53 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=106 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 2 in Weekly Mean of the 24-Hour Average Pain Scores
-0.84 units on a scale
Standard Error 0.25
-0.91 units on a scale
Standard Error 0.18
-1.22 units on a scale
Standard Error 0.18
-0.75 units on a scale
Standard Error 0.17

PRIMARY outcome

Timeframe: Baseline, Week 3

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 3), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=50 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=103 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=97 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=107 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 3 in Weekly Mean of the 24-Hour Average Pain Scores
-1.05 units on a scale
Standard Error 0.26
-1.58 units on a scale
Standard Error 0.18
-1.71 units on a scale
Standard Error 0.19
-1.01 units on a scale
Standard Error 0.18

PRIMARY outcome

Timeframe: Baseline, Week 4

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 4), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=49 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=93 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=104 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 4 in Weekly Mean of the 24-Hour Average Pain Scores
-1.20 units on a scale
Standard Error 0.26
-1.70 units on a scale
Standard Error 0.18
-2.17 units on a scale
Standard Error 0.19
-1.02 units on a scale
Standard Error 0.18

PRIMARY outcome

Timeframe: Baseline, Week 5

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 5), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=46 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=89 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=70 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=91 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 5 in Weekly Mean of the 24-Hour Average Pain Scores
-1.45 units on a scale
Standard Error 0.25
-1.94 units on a scale
Standard Error 0.18
-2.25 units on a scale
Standard Error 0.18
-1.26 units on a scale
Standard Error 0.18

PRIMARY outcome

Timeframe: Baseline, Week 6

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 6), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=44 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=93 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=73 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=93 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 6 in Weekly Mean of the 24-Hour Average Pain Scores
-1.64 units on a scale
Standard Error 0.24
-2.10 units on a scale
Standard Error 0.17
-2.28 units on a scale
Standard Error 0.18
-1.34 units on a scale
Standard Error 0.17

PRIMARY outcome

Timeframe: Baseline, Week 7

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 7), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=44 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=91 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=72 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=93 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 7 in Weekly Mean of the 24-Hour Average Pain Scores
-1.68 units on a scale
Standard Error 0.24
-2.17 units on a scale
Standard Error 0.17
-2.36 units on a scale
Standard Error 0.18
-1.57 units on a scale
Standard Error 0.17

PRIMARY outcome

Timeframe: Baseline, Week 8

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 8), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=43 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=85 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=65 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=80 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 8 in Weekly Mean of the 24-Hour Average Pain Scores
-1.68 units on a scale
Standard Error 0.24
-2.29 units on a scale
Standard Error 0.17
-2.49 units on a scale
Standard Error 0.18
-1.65 units on a scale
Standard Error 0.17

PRIMARY outcome

Timeframe: Baseline, Week 9

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 1), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=44 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=85 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=64 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=88 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 9 in Weekly Mean of the 24-Hour Average Pain Scores
-1.57 units on a scale
Standard Error 0.23
-2.21 units on a scale
Standard Error 0.17
-2.45 units on a scale
Standard Error 0.18
-1.71 units on a scale
Standard Error 0.16

PRIMARY outcome

Timeframe: Baseline, Week 10

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 10), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=43 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=83 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=60 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=87 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 10 in Weekly Mean of the 24-Hour Average Pain Scores
-1.77 units on a scale
Standard Error 0.23
-2.24 units on a scale
Standard Error 0.17
-2.58 units on a scale
Standard Error 0.18
-1.73 units on a scale
Standard Error 0.16

PRIMARY outcome

Timeframe: Baseline, Week 11

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 11), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=41 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=81 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=61 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=85 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 11 in Weekly Mean of the 24-Hour Average Pain Scores
-1.88 units on a scale
Standard Error 0.23
-2.32 units on a scale
Standard Error 0.17
-2.62 units on a scale
Standard Error 0.19
-1.79 units on a scale
Standard Error 0.16

PRIMARY outcome

Timeframe: Baseline, Week 12

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 12), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=39 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=78 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=57 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=80 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 12 in Weekly Mean of the 24-Hour Average Pain Scores
-1.87 units on a scale
Standard Error 0.24
-2.34 units on a scale
Standard Error 0.17
-2.46 units on a scale
Standard Error 0.19
-1.91 units on a scale
Standard Error 0.17

PRIMARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value.

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean (Week 13), with scores ranging from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=41 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=74 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=56 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=74 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Weekly Mean of the 24-Hour Average Pain Scores
-1.74 units on a scale
Standard Error 0.25
-2.50 units on a scale
Standard Error 0.18
-2.42 units on a scale
Standard Error 0.20
-2.10 units on a scale
Standard Error 0.18

SECONDARY outcome

Timeframe: Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

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
Duloxetine 20 mg
n=57 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=114 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Patient's Global Impression - Improvement (PGI-I) at Week 13 Endpoint
2.72 units on a scale
Standard Error 0.17
2.44 units on a scale
Standard Error 0.13
2.66 units on a scale
Standard Error 0.13
2.93 units on a scale
Standard Error 0.13

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Roland-Morris questionnaire was completed by the patient and measured the degree of disability due to back pain. The questionnaire consists of 24 statements and the patient was instructed to put a mark next to each appropriate statement. The number of statements marked was added up by the clinician and a total score was given. The total score ranges from 0 (no disability) to 24 (severe disability).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=52 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=83 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=83 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=92 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Roland-Morris Disability Questionnaire (RMDQ) Total Score
-2.29 units on a scale
Standard Error 0.56
-2.74 units on a scale
Standard Error 0.44
-2.88 units on a scale
Standard Error 0.45
-1.33 units on a scale
Standard Error 0.43

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The 11-point Likert scale was used for assessment of 24-hour night pain and evaluated as weekly means. Scores range from from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=110 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=109 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in the 11-point Likert Scale, Weekly Mean 24-Hour Night Pain Score
-1.77 units on a scale
Standard Error 0.27
-2.15 units on a scale
Standard Error 0.20
-2.47 units on a scale
Standard Error 0.20
-1.91 units on a scale
Standard Error 0.19

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The 11-point Likert scale was used for assessment of 24-hour worst pain and evaluated as weekly means. Scores range from from 0 (no pain) to 10 (worst possible pain).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=110 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=109 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in the 11-point Likert Scale, Weekly Mean of Worst Pain Score
-1.77 units on a scale
Standard Error 0.30
-2.46 units on a scale
Standard Error 0.22
-2.40 units on a scale
Standard Error 0.22
-2.10 units on a scale
Standard Error 0.22

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Measures severity of illness at the time of assessment compared with start of treatment. Scores range from 1 (normal, not at all ill) to 7 (among the most extremely ill patients).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=58 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=112 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Clinical Global Impression of Severity
-0.53 units on a scale
Standard Error 0.14
-0.94 units on a scale
Standard Error 0.11
-1.06 units on a scale
Standard Error 0.11
-0.53 units on a scale
Standard Error 0.10

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures the severity of pain based on the worst pain experienced 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
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Severity (BPI-S) - Worst Pain Score
-1.78 units on a scale
Standard Error 0.35
-2.77 units on a scale
Standard Error 0.25
-2.78 units on a scale
Standard Error 0.26
-2.09 units on a scale
Standard Error 0.25

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures the severity of pain based on the least pain experienced 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
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Severity (BPI-S) - Least Pain Score
-1.30 units on a scale
Standard Error 0.29
-2.06 units on a scale
Standard Error 0.21
-2.16 units on a scale
Standard Error 0.21
-1.51 units on a scale
Standard Error 0.20

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Severity (BPI-S) - Average Pain Score
-1.79 units on a scale
Standard Error 0.30
-2.50 units on a scale
Standard Error 0.22
-2.45 units on a scale
Standard Error 0.22
-1.87 units on a scale
Standard Error 0.22

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures the severity of pain based on the pain right now. The severity scores range from 0 (no pain) to 10 (pain as severe as you can imagine).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Severity (BPI-S) - Pain Right Now Score
-1.63 units on a scale
Standard Error 0.33
-2.67 units on a scale
Standard Error 0.24
-2.61 units on a scale
Standard Error 0.24
-1.74 units on a scale
Standard Error 0.24

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures the interference of pain in the past 24 hours on general acitivity. The Interference scores range from 0 (does not interfere) to 10 (completely interferes).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Interference (BPI-I) Score - General Activity
-1.99 units on a scale
Standard Error 0.33
-2.52 units on a scale
Standard Error 0.24
-2.36 units on a scale
Standard Error 0.25
-1.97 units on a scale
Standard Error 0.24

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures the interference of pain in the past 24 hours on mood. The Interference scores range from 0 (does not interfere) to 10 (completely interferes).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Interference (BPI-I) Score - Mood
-1.75 units on a scale
Standard Error 0.30
-2.52 units on a scale
Standard Error 0.22
-1.96 units on a scale
Standard Error 0.22
-1.70 units on a scale
Standard Error 0.21

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures the interference of pain in the past 24 hours on walking ability. The Interference scores range from 0 (does not interfere) to 10 (completely interferes).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Interference (BPI-I) Score - Walking Ability
-1.79 units on a scale
Standard Error 0.34
-2.33 units on a scale
Standard Error 0.25
-1.89 units on a scale
Standard Error 0.25
-1.43 units on a scale
Standard Error 0.24

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures the interference of pain in the past 24 hours on normal work. The Interference scores range from 0 (does not interfere) to 10 (completely interferes).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Interference (BPI-I) Score - Normal Work
-2.20 units on a scale
Standard Error 0.36
-2.67 units on a scale
Standard Error 0.26
-2.38 units on a scale
Standard Error 0.26
-1.95 units on a scale
Standard Error 0.26

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures the interference of pain in the past 24 hours on relations with other people. The Interference scores range from 0 (does not interfere) to 10 (completely interferes).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Interference (BPI-I) Score - Relations With Other People
-1.33 units on a scale
Standard Error 0.27
-1.86 units on a scale
Standard Error 0.20
-1.27 units on a scale
Standard Error 0.20
-0.94 units on a scale
Standard Error 0.19

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures the interference of pain in the past 24 hours on sleep. The Interference scores range from 0 (does not interfere) to 10 (completely interferes).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Interference (BPI-I) Score - Sleep
-1.59 units on a scale
Standard Error 0.32
-2.48 units on a scale
Standard Error 0.24
-2.12 units on a scale
Standard Error 0.24
-1.63 units on a scale
Standard Error 0.23

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures the interference of pain in the past 24 hours on enjoyment of life. The Interference scores range from 0 (does not interfere) to 10 (completely interferes).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Interference (BPI-I) Score - Enjoyment of Life
-1.84 units on a scale
Standard Error 0.32
-2.49 units on a scale
Standard Error 0.24
-1.86 units on a scale
Standard Error 0.24
-1.76 units on a scale
Standard Error 0.23

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A self-reported scale that measures interference of pain on average of the 7 questions assessing the interference of pain for general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life. The average Interference scores range from 0 (does not interfere) to 10 (completely interferes).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Brief Pain Inventory Interference (BPI-I) Score - Average Interference
-1.84 units on a scale
Standard Error 0.26
-2.40 units on a scale
Standard Error 0.19
-1.92 units on a scale
Standard Error 0.19
-1.61 units on a scale
Standard Error 0.19

SECONDARY outcome

Timeframe: Baseline to Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=110 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=109 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Response to Treatment, as Defined by a 30% Reduction of Weekly Mean Score in 24-hour Average Pain Severity Ratings, Last Observation Carried Forward
23 participants
59 participants
63 participants
49 participants

SECONDARY outcome

Timeframe: Baseline to Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=110 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=109 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Response to Treatment, as Defined by a 50% Reduction of Weekly Mean Score in 24-hour Average Pain Severity Ratings, Last Observation Carried Forward
12 participants
38 participants
40 participants
33 participants

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Estimates sleep difficulty. Consists of 8 items rated on a 4-point scale of 0 (no problem at all) to 3 (very serious problem). Total score of the 8-item version ranges from 0-24.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=99 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=107 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Athens Insomnia Scale
-1.43 units on a scale
Standard Error 0.53
-2.30 units on a scale
Standard Error 0.39
-0.93 units on a scale
Standard Error 0.40
-1.23 units on a scale
Standard Error 0.38

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary \[MCS\] and physical component summary \[PCS\]). MCS and PCS scores=0-100 (higher scores indicate better health status).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=108 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in the 36-item Short-Form Health Survey (SF36)- Mental Component Summary (MCS)
0.01 units on a scale
Standard Error 1.11
0.57 units on a scale
Standard Error 0.81
-1.26 units on a scale
Standard Error 0.82
-0.45 units on a scale
Standard Error 0.79

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary \[MCS\] and physical component summary \[PCS\]). MCS and PCS scores=0-100 (higher scores indicate better health status).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=108 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in 36-Item Short-Form Health Survey (SF36) - Physical Component Summary (PCS)
6.07 units on a scale
Standard Error 1.22
7.01 units on a scale
Standard Error 0.88
7.85 units on a scale
Standard Error 0.89
6.11 units on a scale
Standard Error 0.86

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary \[MCS\] and physical component summary \[PCS\]). Bodily pain scores range from 2-11 (higher scores indicate better health status).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=108 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in 36-Item Short-Form Health Survey (SF36) - Bodily Pain
1.51 units on a scale
Standard Error 0.27
1.95 units on a scale
Standard Error 0.20
2.11 units on a scale
Standard Error 0.20
1.36 units on a scale
Standard Error 0.19

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary \[MCS\] and physical component summary \[PCS\]). General health scores range from 5-25(higher scores indicate better health status).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=108 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in 36-Item Short-Form Health Survey (SF36) - General Health
0.70 units on a scale
Standard Error 0.41
1.24 units on a scale
Standard Error 0.30
0.81 units on a scale
Standard Error 0.30
0.66 units on a scale
Standard Error 0.29

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary \[MCS\] and physical component summary \[PCS\]). Mental health scores range from 5-30 (higher scores indicate better health status).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=108 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in 36-Item Short-Form Health Survey (SF36) - Mental Health
0.21 units on a scale
Standard Error 0.49
0.98 units on a scale
Standard Error 0.36
0.46 units on a scale
Standard Error 0.36
0.38 units on a scale
Standard Error 0.35

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary \[MCS\] and physical component summary \[PCS\]). Physical functioning scores range from 10-30 (higher scores indicate better health status).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=108 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in 36-Item Short-Form Health Survey (SF36) - Physical Functioning
1.80 units on a scale
Standard Error 0.52
2.55 units on a scale
Standard Error 0.38
3.11 units on a scale
Standard Error 0.38
2.23 units on a scale
Standard Error 0.37

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary \[MCS\] and physical component summary \[PCS\]). Role-emotional scores range from 3-6 (higher scores indicate better health status).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=108 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in 36-Item Short-Form Health Survey (SF36) - Role-Emotional
0.10 units on a scale
Standard Error 0.12
0.19 units on a scale
Standard Error 0.09
0.14 units on a scale
Standard Error 0.09
0.08 units on a scale
Standard Error 0.09

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary \[MCS\] and physical component summary \[PCS\]). Role-physical scores range from 4-8 (higher scores indicate better health status).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=108 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in 36-Item Short-Form Health Survey (SF36) - Role-Physical
0.81 units on a scale
Standard Error 0.21
0.80 units on a scale
Standard Error 0.15
0.85 units on a scale
Standard Error 0.15
0.80 units on a scale
Standard Error 0.15

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary \[MCS\] and physical component summary \[PCS\]). Social functioning scores range from 2-10 (higher scores indicate better health status).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=108 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in 36-Item Short-Form Health Survey (SF36) - Social Functioning
0.75 units on a scale
Standard Error 0.21
0.46 units on a scale
Standard Error 0.16
0.38 units on a scale
Standard Error 0.16
0.50 units on a scale
Standard Error 0.15

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The SF-36 Health Status Survey is a generic, health-related scale assessing subjects' quality of life on 8 domains: physical functioning, social functioning, bodily pain, vitality, mental health, role-physical, role-emotional and general health and 2 summary scores (mental component summary \[MCS\] and physical component summary \[PCS\]). Vitality scores range from 4-24 (higher scores indicate better health status).

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=101 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=108 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in 36-Item Short-Form Health Survey (SF36) - Vitality
0.69 units on a scale
Standard Error 0.50
1.43 units on a scale
Standard Error 0.36
0.44 units on a scale
Standard Error 0.37
0.91 units on a scale
Standard Error 0.35

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

The EuroQoL Questionnaire - 5 Dimension (EQ-5D) is a generic, multidimensional, health-related, quality-of-life instrument. The profile allows patients to rate their health state in 5 health domains: mobility, self-care, usual activities, pain/discomfort, and mood. A single score between 1 and 3 is generated for each domain. For each patient, the outcome rating on the 5 domains will be mapped to a single index through an algorithm. The index ranges between 0 and 1, with the higher score indicating a better health state perceived by the patient.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=100 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=104 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in the Euro-Quality of Life Questionnaire - 5 Dimension - US Based Index Score
0.04 units on a scale
Standard Error 0.02
0.07 units on a scale
Standard Error 0.01
0.08 units on a scale
Standard Error 0.02
0.05 units on a scale
Standard Error 0.01

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

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 of 0-13 is considered minimal range, 14-19 is mild, 20-28 is moderate, and 29-63 is severe.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=57 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=109 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=114 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Beck Depression Inventory-II Total Score
-1.24 units on a scale
Standard Error 0.68
-1.54 units on a scale
Standard Error 0.50
0.37 units on a scale
Standard Error 0.50
-1.02 units on a scale
Standard Error 0.49

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

A 14-item questionnaire with 2 subscales: anxiety and depression. Each item is rated on a 4-point scale, giving maximum scores of 21 for anxiety and depression. Scores of 11 or more on either subscale are considered to be a significant 'case' of psychological morbidity, while scores of 8-10 represent 'borderline' and 0-7, 'normal.'

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=54 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=100 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=106 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Hospital Anxiety and Depression Scale (HADS) Anxiety Subscale
-0.30 units on a scale
Standard Error 0.36
-0.81 units on a scale
Standard Error 0.27
-0.91 units on a scale
Standard Error 0.27
-0.68 units on a scale
Standard Error 0.26

SECONDARY outcome

Timeframe: Baseline to Week 13

Population: Number of all randomized patients.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=59 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=116 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=112 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=117 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Adverse Events Reported as Reason for Discontinuation
Disturbance in attention
0 participants
1 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Dysphoria
1 participants
0 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Ejaculation disorder
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Trismus
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Patients Discontinued for Any Adverse Event
9 participants
17 participants
27 participants
10 participants
Adverse Events Reported as Reason for Discontinuation
Insomnia
1 participants
1 participants
3 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Nausea
1 participants
2 participants
1 participants
1 participants
Adverse Events Reported as Reason for Discontinuation
Vomiting
1 participants
2 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Anxiety
0 participants
0 participants
2 participants
1 participants
Adverse Events Reported as Reason for Discontinuation
Constipation
1 participants
1 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Diarrhoea
0 participants
1 participants
0 participants
1 participants
Adverse Events Reported as Reason for Discontinuation
Dizziness
0 participants
0 participants
1 participants
1 participants
Adverse Events Reported as Reason for Discontinuation
Dyspepsia
0 participants
1 participants
0 participants
1 participants
Adverse Events Reported as Reason for Discontinuation
Erectile dysfunction
0 participants
2 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Hepatic enzyme increased
0 participants
1 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Somnolence
1 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Abdominal pain
1 participants
0 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Abdominal pain upper
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Apathy
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Bursitis
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Confusional state
1 participants
0 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Coordination abnormal
0 participants
0 participants
0 participants
1 participants
Adverse Events Reported as Reason for Discontinuation
Decreased appetite
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Fatigue
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Gastroenteritis
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Glaucoma
0 participants
0 participants
0 participants
1 participants
Adverse Events Reported as Reason for Discontinuation
Headache
0 participants
0 participants
0 participants
1 participants
Adverse Events Reported as Reason for Discontinuation
Hepatitis
0 participants
1 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Hot flush
0 participants
1 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Hyperhidrosis
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Hypertension
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Irritability
1 participants
0 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Lethargy
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Loss of libido
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Muscular weakness
0 participants
1 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Myocardial infarction
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Palpitations
0 participants
1 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Peritonsillar abscess
0 participants
0 participants
0 participants
1 participants
Adverse Events Reported as Reason for Discontinuation
Pregnancy
0 participants
0 participants
0 participants
1 participants
Adverse Events Reported as Reason for Discontinuation
Rash
0 participants
1 participants
0 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Restless legs syndrome
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Sedation
0 participants
0 participants
1 participants
0 participants
Adverse Events Reported as Reason for Discontinuation
Testicular pain
0 participants
0 participants
1 participants
0 participants

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=58 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=104 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Laboratory Assessments - Alkaline Phosphatase
-1.19 Units/Liter
Standard Deviation 11.19
3.27 Units/Liter
Standard Deviation 14.17
1.11 Units/Liter
Standard Deviation 12.37
-1.43 Units/Liter
Standard Deviation 7.61

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=106 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=104 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=112 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to 13 Week Endpoint in Laboratory Assessments - Alanine Transaminase
-1.39 Units/Liter
Standard Deviation 10.91
0.25 Units/Liter
Standard Deviation 21.53
2.20 Units/Liter
Standard Deviation 12.45
-0.06 Units/Liter
Standard Deviation 9.48

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=57 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=106 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=104 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=112 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Laboratory Assessment - Bicarbonate, HCO3
1.04 millimole/Liter
Standard Deviation 3.29
1.18 millimole/Liter
Standard Deviation 3.60
1.72 millimole/Liter
Standard Deviation 2.93
1.35 millimole/Liter
Standard Deviation 3.09

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=105 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=102 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=112 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Laboratory Assessment - Bilirubin, Direct
-0.29 micromole/Liter
Standard Deviation 0.68
-0.13 micromole/Liter
Standard Deviation 0.82
-0.13 micromole/Liter
Standard Deviation 0.74
0.07 micromole/Liter
Standard Deviation 0.82

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=57 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=106 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=104 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Laboratory Assessment - Bilirubin, Total
-1.05 micromole/Liter
Standard Deviation 2.56
-0.23 micromole/Liter
Standard Deviation 3.50
-0.58 micromole/Liter
Standard Deviation 2.57
0.18 micromole/Liter
Standard Deviation 3.15

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=58 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=104 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=114 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Laboratory Assessment - Chloride
-0.22 millimole/Liter
Standard Deviation 2.44
-0.54 millimole/Liter
Standard Deviation 2.81
-0.99 millimole/Liter
Standard Deviation 2.55
-0.47 millimole/Liter
Standard Deviation 2.48

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=58 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=104 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=114 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Laboratory Assessment - Cholesterol
-0.04 millimole/Liter
Standard Deviation 0.74
-0.09 millimole/Liter
Standard Deviation 0.70
0.01 millimole/Liter
Standard Deviation 0.88
-0.22 millimole/Liter
Standard Deviation 0.62

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=58 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=104 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=114 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Laboratory Assessment - Creatinine
-11.43 micromole/Liter
Standard Deviation 89.68
-0.66 micromole/Liter
Standard Deviation 8.96
1.34 micromole/Liter
Standard Deviation 9.91
2.02 micromole/Liter
Standard Deviation 10.36

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=56 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=104 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=113 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Laboratory Assessment - Potassium
-0.02 millimole/Liter
Standard Deviation 0.41
0.00 millimole/Liter
Standard Deviation 0.42
0.06 millimole/Liter
Standard Deviation 0.44
-0.08 millimole/Liter
Standard Deviation 0.42

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=58 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=107 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=104 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=114 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Laboratory Assessment - Uric Acid
-9.48 micromole/Liter
Standard Deviation 45.82
-11.08 micromole/Liter
Standard Deviation 49.35
-11.31 micromole/Liter
Standard Deviation 50.54
8.20 micromole/Liter
Standard Deviation 37.89

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=58 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=110 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=114 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Vital Signs - Pulse Rate
-1.10 beats per minute
Standard Error 1.21
2.79 beats per minute
Standard Error 0.89
1.90 beats per minute
Standard Error 0.90
0.29 beats per minute
Standard Error 0.87

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=58 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=110 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=114 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Vital Signs - Systolic Blood Pressure
-0.64 mm Hg
Standard Error 1.68
-1.18 mm Hg
Standard Error 1.24
1.00 mm Hg
Standard Error 1.25
-1.04 mm Hg
Standard Error 1.21

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=58 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=110 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=114 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Vital Signs - Diastolic Blood Pressure
-0.51 mm Hg
Standard Error 1.14
-0.79 mm Hg
Standard Error 0.84
2.94 mm Hg
Standard Error 0.85
-0.68 mm Hg
Standard Error 0.82

SECONDARY outcome

Timeframe: Baseline, Week 13

Population: Number of randomized patients with a baseline and at least one non-missing post-baseline value. Endpoint is the last non-missing measure from Week 4 to Week 13. Last observation carried forward.

Outcome measures

Outcome measures
Measure
Duloxetine 20 mg
n=58 Participants
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=110 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=108 Participants
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=114 Participants
placebo once a day (QD), by mouth (PO) for 13 weeks
Change From Baseline to Week 13 Endpoint in Vital Signs - Weight
-0.59 kilograms
Standard Error 0.30
-0.35 kilograms
Standard Error 0.22
-0.72 kilograms
Standard Error 0.22
0.10 kilograms
Standard Error 0.22

Adverse Events

Duloxetine 20 mg

Serious events: 1 serious events
Other events: 39 other events
Deaths: 0 deaths

Duloxetine 60 mg

Serious events: 1 serious events
Other events: 78 other events
Deaths: 0 deaths

Duloxetine 120 mg

Serious events: 3 serious events
Other events: 80 other events
Deaths: 0 deaths

Placebo

Serious events: 3 serious events
Other events: 69 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Duloxetine 20 mg
n=59 participants at risk
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=116 participants at risk
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=112 participants at risk
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=117 participants at risk
placebo once a day (QD), by mouth (PO) for 13 weeks
Cardiac disorders
Myocardial infarction
0.00%
0/59
0.00%
0/116
0.89%
1/112 • Number of events 1
0.00%
0/117
Ear and labyrinth disorders
Vertigo
0.00%
0/59
0.00%
0/116
0.00%
0/112
0.85%
1/117 • Number of events 1
Gastrointestinal disorders
Diarrhoea
0.00%
0/59
0.00%
0/116
0.89%
1/112 • Number of events 1
0.00%
0/117
Gastrointestinal disorders
Hypoaesthesia oral
0.00%
0/59
0.00%
0/116
0.89%
1/112 • Number of events 1
0.00%
0/117
General disorders
Non-cardiac chest pain
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.85%
1/117 • Number of events 1
Infections and infestations
Peritonsillar abscess
0.00%
0/59
0.00%
0/116
0.00%
0/112
0.85%
1/117 • Number of events 1
Musculoskeletal and connective tissue disorders
Muscular weakness
0.00%
0/59
0.86%
1/116 • Number of events 1
0.00%
0/112
0.00%
0/117
Nervous system disorders
Coordination abnormal
0.00%
0/59
0.00%
0/116
0.00%
0/112
0.85%
1/117 • Number of events 1
Nervous system disorders
Dizziness
0.00%
0/59
0.86%
1/116 • Number of events 1
0.00%
0/112
0.00%
0/117
Nervous system disorders
Hypoaesthesia
0.00%
0/59
0.00%
0/116
0.89%
1/112 • Number of events 1
0.00%
0/117
Nervous system disorders
Transient ischaemic attack
0.00%
0/59
0.00%
0/116
0.89%
1/112 • Number of events 1
0.00%
0/117
Respiratory, thoracic and mediastinal disorders
Dyspnoea
0.00%
0/59
0.86%
1/116 • Number of events 1
0.00%
0/112
0.00%
0/117

Other adverse events

Other adverse events
Measure
Duloxetine 20 mg
n=59 participants at risk
duloxetine 20 mg once a day (QD), by mouth (PO) for 13 weeks
Duloxetine 60 mg
n=116 participants at risk
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week then duloxetine 60 mg QD, PO for 12 weeks
Duloxetine 120 mg
n=112 participants at risk
duloxetine 30 mg once a day (QD), by mouth (PO) for 1 week followed by duloxetine 60 mg QD, PO for 1 week, then duloxetine 120 mg QD, PO for 11 weeks
Placebo
n=117 participants at risk
placebo once a day (QD), by mouth (PO) for 13 weeks
Cardiac disorders
Palpitations
0.00%
0/59
2.6%
3/116 • Number of events 3
2.7%
3/112 • Number of events 3
0.00%
0/117
Eye disorders
Conjunctivitis
3.4%
2/59 • Number of events 2
0.00%
0/116
0.00%
0/112
0.85%
1/117 • Number of events 1
Eye disorders
Vision blurred
1.7%
1/59 • Number of events 1
0.86%
1/116 • Number of events 1
1.8%
2/112 • Number of events 2
0.00%
0/117
Gastrointestinal disorders
Abdominal distension
0.00%
0/59
0.86%
1/116 • Number of events 1
1.8%
2/112 • Number of events 2
0.85%
1/117 • Number of events 1
Gastrointestinal disorders
Abdominal pain
1.7%
1/59 • Number of events 1
1.7%
2/116 • Number of events 2
0.89%
1/112 • Number of events 1
0.00%
0/117
Gastrointestinal disorders
Abdominal pain upper
0.00%
0/59
0.00%
0/116
1.8%
2/112 • Number of events 2
0.85%
1/117 • Number of events 1
Gastrointestinal disorders
Colonic polyp
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Gastrointestinal disorders
Constipation
3.4%
2/59 • Number of events 2
8.6%
10/116 • Number of events 10
12.5%
14/112 • Number of events 14
0.85%
1/117 • Number of events 1
Gastrointestinal disorders
Diarrhoea
3.4%
2/59 • Number of events 2
8.6%
10/116 • Number of events 12
6.2%
7/112 • Number of events 8
3.4%
4/117 • Number of events 8
Gastrointestinal disorders
Dry mouth
5.1%
3/59 • Number of events 3
10.3%
12/116 • Number of events 13
10.7%
12/112 • Number of events 12
0.85%
1/117 • Number of events 1
Gastrointestinal disorders
Dyspepsia
1.7%
1/59 • Number of events 1
2.6%
3/116 • Number of events 3
2.7%
3/112 • Number of events 3
1.7%
2/117 • Number of events 2
Gastrointestinal disorders
Gastritis
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Gastrointestinal disorders
Gastrooesophageal reflux disease
0.00%
0/59
0.00%
0/116
1.8%
2/112 • Number of events 2
0.00%
0/117
Gastrointestinal disorders
Nausea
18.6%
11/59 • Number of events 12
20.7%
24/116 • Number of events 24
12.5%
14/112 • Number of events 14
3.4%
4/117 • Number of events 6
Gastrointestinal disorders
Stomach discomfort
1.7%
1/59 • Number of events 1
0.00%
0/116
1.8%
2/112 • Number of events 2
0.00%
0/117
Gastrointestinal disorders
Vomiting
3.4%
2/59 • Number of events 2
1.7%
2/116 • Number of events 2
2.7%
3/112 • Number of events 3
0.85%
1/117 • Number of events 1
General disorders
Asthenia
0.00%
0/59
0.00%
0/116
2.7%
3/112 • Number of events 3
0.00%
0/117
General disorders
Fatigue
0.00%
0/59
6.0%
7/116 • Number of events 7
8.9%
10/112 • Number of events 10
0.00%
0/117
General disorders
Feeling abnormal
0.00%
0/59
1.7%
2/116 • Number of events 2
0.00%
0/112
0.00%
0/117
General disorders
Irritability
3.4%
2/59 • Number of events 2
0.86%
1/116 • Number of events 1
1.8%
2/112 • Number of events 2
0.85%
1/117 • Number of events 1
General disorders
Non-cardiac chest pain
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
General disorders
Oedema peripheral
0.00%
0/59
0.00%
0/116
0.00%
0/112
1.7%
2/117 • Number of events 2
General disorders
Therapeutic response unexpected
1.7%
1/59 • Number of events 1
0.00%
0/116
0.89%
1/112 • Number of events 1
0.00%
0/117
Immune system disorders
Drug hypersensitivity
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Infections and infestations
Bronchitis
0.00%
0/59
0.00%
0/116
0.00%
0/112
2.6%
3/117 • Number of events 3
Infections and infestations
Cystitis
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Infections and infestations
Folliculitis
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Infections and infestations
Gastroenteritis
1.7%
1/59 • Number of events 1
2.6%
3/116 • Number of events 3
0.89%
1/112 • Number of events 1
0.85%
1/117 • Number of events 1
Infections and infestations
Influenza
5.1%
3/59 • Number of events 3
5.2%
6/116 • Number of events 6
4.5%
5/112 • Number of events 5
4.3%
5/117 • Number of events 5
Infections and infestations
Kidney infection
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Infections and infestations
Nasopharyngitis
1.7%
1/59 • Number of events 1
1.7%
2/116 • Number of events 2
0.89%
1/112 • Number of events 1
4.3%
5/117 • Number of events 5
Infections and infestations
Pharyngitis
6.8%
4/59 • Number of events 4
0.86%
1/116 • Number of events 1
0.00%
0/112
0.00%
0/117
Infections and infestations
Pharyngotonsillitis
0.00%
0/59
1.7%
2/116 • Number of events 2
0.00%
0/112
0.85%
1/117 • Number of events 1
Infections and infestations
Sinusitis
1.7%
1/59 • Number of events 1
0.00%
0/116
0.89%
1/112 • Number of events 1
4.3%
5/117 • Number of events 5
Infections and infestations
Tooth abscess
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Infections and infestations
Upper respiratory tract infection
0.00%
0/59
0.86%
1/116 • Number of events 1
0.00%
0/112
1.7%
2/117 • Number of events 2
Infections and infestations
Urinary tract infection
3.4%
2/59 • Number of events 2
0.00%
0/116
1.8%
2/112 • Number of events 2
0.85%
1/117 • Number of events 1
Injury, poisoning and procedural complications
Joint injury
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.85%
1/117 • Number of events 1
Injury, poisoning and procedural complications
Muscle strain
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Investigations
Neurological examination abnormal
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Investigations
Weight increased
0.00%
0/59
0.00%
0/116
0.00%
0/112
1.7%
2/117 • Number of events 2
Metabolism and nutrition disorders
Anorexia
1.7%
1/59 • Number of events 1
2.6%
3/116 • Number of events 3
2.7%
3/112 • Number of events 3
0.85%
1/117 • Number of events 1
Metabolism and nutrition disorders
Decreased appetite
0.00%
0/59
4.3%
5/116 • Number of events 5
4.5%
5/112 • Number of events 5
0.00%
0/117
Metabolism and nutrition disorders
Dehydration
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Metabolism and nutrition disorders
Hyperglycaemia
1.7%
1/59 • Number of events 1
0.00%
0/116
0.89%
1/112 • Number of events 1
0.00%
0/117
Metabolism and nutrition disorders
Hypokalaemia
0.00%
0/59
0.00%
0/116
1.8%
2/112 • Number of events 2
0.00%
0/117
Metabolism and nutrition disorders
Increased appetite
1.7%
1/59 • Number of events 1
0.00%
0/116
0.89%
1/112 • Number of events 1
1.7%
2/117 • Number of events 2
Musculoskeletal and connective tissue disorders
Arthralgia
3.4%
2/59 • Number of events 2
4.3%
5/116 • Number of events 5
0.00%
0/112
1.7%
2/117 • Number of events 2
Musculoskeletal and connective tissue disorders
Back pain
1.7%
1/59 • Number of events 2
0.86%
1/116 • Number of events 1
0.00%
0/112
0.85%
1/117 • Number of events 1
Musculoskeletal and connective tissue disorders
Groin pain
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Musculoskeletal and connective tissue disorders
Haemarthrosis
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Musculoskeletal and connective tissue disorders
Muscle spasms
1.7%
1/59 • Number of events 1
0.86%
1/116 • Number of events 1
0.89%
1/112 • Number of events 1
0.00%
0/117
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
1.7%
1/59 • Number of events 1
0.00%
0/116
1.8%
2/112 • Number of events 2
0.00%
0/117
Musculoskeletal and connective tissue disorders
Myalgia
1.7%
1/59 • Number of events 1
1.7%
2/116 • Number of events 2
0.89%
1/112 • Number of events 1
0.85%
1/117 • Number of events 1
Musculoskeletal and connective tissue disorders
Osteoarthritis
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Musculoskeletal and connective tissue disorders
Pain in extremity
0.00%
0/59
2.6%
3/116 • Number of events 3
1.8%
2/112 • Number of events 2
0.85%
1/117 • Number of events 1
Nervous system disorders
Aphonia
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Nervous system disorders
Dizziness
5.1%
3/59 • Number of events 3
7.8%
9/116 • Number of events 9
8.0%
9/112 • Number of events 9
2.6%
3/117 • Number of events 3
Nervous system disorders
Headache
3.4%
2/59 • Number of events 2
10.3%
12/116 • Number of events 15
8.9%
10/112 • Number of events 17
3.4%
4/117 • Number of events 4
Nervous system disorders
Hypersomnia
1.7%
1/59 • Number of events 1
0.00%
0/116
0.89%
1/112 • Number of events 1
0.00%
0/117
Nervous system disorders
Hypoaesthesia
0.00%
0/59
3.4%
4/116 • Number of events 4
0.89%
1/112 • Number of events 1
0.00%
0/117
Nervous system disorders
Lethargy
0.00%
0/59
0.86%
1/116 • Number of events 1
1.8%
2/112 • Number of events 2
0.00%
0/117
Nervous system disorders
Paraesthesia
0.00%
0/59
1.7%
2/116 • Number of events 3
1.8%
2/112 • Number of events 2
0.00%
0/117
Nervous system disorders
Sedation
0.00%
0/59
2.6%
3/116 • Number of events 3
2.7%
3/112 • Number of events 3
1.7%
2/117 • Number of events 2
Nervous system disorders
Somnolence
5.1%
3/59 • Number of events 3
4.3%
5/116 • Number of events 5
12.5%
14/112 • Number of events 14
0.00%
0/117
Nervous system disorders
Tremor
0.00%
0/59
1.7%
2/116 • Number of events 2
0.89%
1/112 • Number of events 1
0.85%
1/117 • Number of events 1
Psychiatric disorders
Anorgasmia
0.00%
0/59
0.00%
0/116
2.7%
3/112 • Number of events 3
0.00%
0/117
Psychiatric disorders
Anxiety
1.7%
1/59 • Number of events 1
0.86%
1/116 • Number of events 1
1.8%
2/112 • Number of events 2
1.7%
2/117 • Number of events 2
Psychiatric disorders
Confusional state
1.7%
1/59 • Number of events 1
0.86%
1/116 • Number of events 1
0.00%
0/112
0.00%
0/117
Psychiatric disorders
Dysphoria
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Psychiatric disorders
Insomnia
10.2%
6/59 • Number of events 6
8.6%
10/116 • Number of events 11
18.8%
21/112 • Number of events 22
2.6%
3/117 • Number of events 3
Psychiatric disorders
Libido decreased
3.4%
2/59 • Number of events 2
1.7%
2/116 • Number of events 2
3.6%
4/112 • Number of events 4
0.00%
0/117
Psychiatric disorders
Loss of libido
0.00%
0/59
0.00%
0/116
1.8%
2/112 • Number of events 2
0.00%
0/117
Psychiatric disorders
Sleep disorder
0.00%
0/59
1.7%
2/116 • Number of events 2
3.6%
4/112 • Number of events 4
0.85%
1/117 • Number of events 1
Renal and urinary disorders
Nocturia
0.00%
0/59
0.86%
1/116 • Number of events 1
3.6%
4/112 • Number of events 4
0.00%
0/117
Renal and urinary disorders
Pollakiuria
0.00%
0/59
0.86%
1/116 • Number of events 1
1.8%
2/112 • Number of events 2
0.00%
0/117
Reproductive system and breast disorders
Breast cyst
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Reproductive system and breast disorders
Ejaculation delayed
0.00%
0/59
0.00%
0/116
1.8%
2/112 • Number of events 2
0.00%
0/117
Reproductive system and breast disorders
Ejaculation disorder
0.00%
0/59
0.00%
0/116
1.8%
2/112 • Number of events 2
0.00%
0/117
Reproductive system and breast disorders
Erectile dysfunction
1.7%
1/59 • Number of events 1
2.6%
3/116 • Number of events 3
2.7%
3/112 • Number of events 3
0.00%
0/117
Reproductive system and breast disorders
Testicular pain
0.00%
0/59
0.00%
0/116
1.8%
2/112 • Number of events 2
0.00%
0/117
Reproductive system and breast disorders
Vaginal haemorrhage
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Reproductive system and breast disorders
Vulvovaginal pruritus
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Respiratory, thoracic and mediastinal disorders
Asthma
3.4%
2/59 • Number of events 2
0.00%
0/116
0.00%
0/112
0.00%
0/117
Respiratory, thoracic and mediastinal disorders
Cough
0.00%
0/59
0.86%
1/116 • Number of events 1
0.89%
1/112 • Number of events 1
1.7%
2/117 • Number of events 2
Respiratory, thoracic and mediastinal disorders
Epistaxis
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Respiratory, thoracic and mediastinal disorders
Nasal congestion
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.85%
1/117 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Pharyngolaryngeal pain
0.00%
0/59
1.7%
2/116 • Number of events 2
1.8%
2/112 • Number of events 2
0.85%
1/117 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Yawning
0.00%
0/59
1.7%
2/116 • Number of events 2
0.89%
1/112 • Number of events 1
0.00%
0/117
Skin and subcutaneous tissue disorders
Acne
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Skin and subcutaneous tissue disorders
Hyperhidrosis
0.00%
0/59
0.86%
1/116 • Number of events 1
4.5%
5/112 • Number of events 5
0.85%
1/117 • Number of events 1
Skin and subcutaneous tissue disorders
Pruritus
0.00%
0/59
0.86%
1/116 • Number of events 1
2.7%
3/112 • Number of events 3
0.85%
1/117 • Number of events 1
Skin and subcutaneous tissue disorders
Pruritus generalised
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Skin and subcutaneous tissue disorders
Psoriasis
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Skin and subcutaneous tissue disorders
Rash
1.7%
1/59 • Number of events 1
1.7%
2/116 • Number of events 2
0.00%
0/112
2.6%
3/117 • Number of events 6
Skin and subcutaneous tissue disorders
Urticaria
0.00%
0/59
0.86%
1/116 • Number of events 1
0.00%
0/112
1.7%
2/117 • Number of events 2
Surgical and medical procedures
Cardiac ablation
1.7%
1/59 • Number of events 1
0.00%
0/116
0.00%
0/112
0.00%
0/117
Vascular disorders
Hot flush
0.00%
0/59
4.3%
5/116 • Number of events 5
0.89%
1/112 • Number of events 1
0.00%
0/117
Vascular disorders
Hypertension
1.7%
1/59 • Number of events 1
2.6%
3/116 • Number of events 3
4.5%
5/112 • Number of events 5
1.7%
2/117 • Number of events 2

Additional Information

Chief Medical Officer

Eli Lilly and Company

Phone: 1-800-545-5979

Results disclosure agreements

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

Restriction type: GT60