Trial Outcomes & Findings for Randomized, Double-Blind, Multicenter, Placebo-Controlled Study Of Pregabalin For Pain Associated With Diabetic Peripheral Neuropathy (NCT NCT00553475)

NCT ID: NCT00553475

Last Updated: 2021-01-25

Results Overview

Change from baseline: Score at study endpoint minus score at baseline. Study endpoint is defined as the mean of the last seven entries of the daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) while on study medication up to and including day after last dose.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

314 participants

Primary outcome timeframe

From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Results posted on

2021-01-25

Participant Flow

After a 1-week baseline phase, subjects were classified into 2 strata based on creatinine clearance (CLcr) values (Low: 30 \<CLcr \<=60 mL/minute; Normal: CLcr \> 60 mL/minute) and were each randomly assigned to 1 of 3 treatment groups.

Participant milestones

Participant milestones
Measure
Placebo
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Overall Study
STARTED
135
134
45
Overall Study
COMPLETED
119
114
32
Overall Study
NOT COMPLETED
16
20
13

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Overall Study
Adverse Event
7
17
13
Overall Study
Lack of Efficacy
7
1
0
Overall Study
Withdrawal by Subject
1
1
0
Overall Study
Physician Decision
1
0
0
Overall Study
Due to moving
0
1
0

Baseline Characteristics

Randomized, Double-Blind, Multicenter, Placebo-Controlled Study Of Pregabalin For Pain Associated With Diabetic Peripheral Neuropathy

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Total
n=314 Participants
Total of all reporting groups
Age, Customized
< 18 years
0 participants
n=5 Participants
0 participants
n=7 Participants
0 participants
n=5 Participants
0 participants
n=4 Participants
Age, Customized
18 - 44 years
7 participants
n=5 Participants
8 participants
n=7 Participants
1 participants
n=5 Participants
16 participants
n=4 Participants
Age, Customized
45 - 64 years
76 participants
n=5 Participants
78 participants
n=7 Participants
25 participants
n=5 Participants
179 participants
n=4 Participants
Age, Customized
>= 65 years
52 participants
n=5 Participants
48 participants
n=7 Participants
19 participants
n=5 Participants
119 participants
n=4 Participants
Age, Continuous
61.3 years
STANDARD_DEVIATION 9.6 • n=5 Participants
61.3 years
STANDARD_DEVIATION 10.3 • n=7 Participants
62.2 years
STANDARD_DEVIATION 10.3 • n=5 Participants
61.4 years
STANDARD_DEVIATION 10.0 • n=4 Participants
Sex: Female, Male
Female
32 Participants
n=5 Participants
32 Participants
n=7 Participants
13 Participants
n=5 Participants
77 Participants
n=4 Participants
Sex: Female, Male
Male
103 Participants
n=5 Participants
102 Participants
n=7 Participants
32 Participants
n=5 Participants
237 Participants
n=4 Participants
Region of Enrollment
Japan
135 participants
n=5 Participants
134 participants
n=7 Participants
45 participants
n=5 Participants
314 participants
n=4 Participants

PRIMARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

Change from baseline: Score at study endpoint minus score at baseline. Study endpoint is defined as the mean of the last seven entries of the daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) while on study medication up to and including day after last dose.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline to Study Endpoint in Mean Weekly Pain Scores
-1.20 score on scale
Standard Error 0.21
-1.82 score on scale
Standard Error 0.22
-1.94 score on scale
Standard Error 0.32

PRIMARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

Change from baseline: Score at study endpoint minus score at baseline. Study endpoint is defined as the mean of the last seven entries of the daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) while on study medication up to and including day after last dose. Subjects are classified by exposure to pregabalin, which is estimated by creatinine clearance (CLcr).

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=120 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=59 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline to Study Endpoint in Mean Weekly Pain Scores by Groups of Subjects With Expected Similar Plasma Concentrations
-1.27 score on scale
Standard Error 0.16
-1.93 score on scale
Standard Error 0.17
-1.90 score on scale
Standard Error 0.25

PRIMARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

A responder is defined as a subject with a 50% reduction in weekly mean pain score from baseline to study endpoint.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Number of Responders
29 participants
39 participants
16 participants

PRIMARY outcome

Timeframe: From baseline to Week 1

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 1. Change from baseline: Score at Week 1 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 1 in Mean Weekly Pain Scores
-0.39 score on scale
Standard Error 0.17
-0.82 score on scale
Standard Error 0.17
-1.14 score on scale
Standard Error 0.26

PRIMARY outcome

Timeframe: From baseline to Week 2

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 2. Change from baseline: Score at Week 2 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=133 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=132 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=41 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 2 in Mean Weekly Pain Scores
-0.57 score on scale
Standard Error 0.17
-1.17 score on scale
Standard Error 0.17
-1.80 score on scale
Standard Error 0.26

PRIMARY outcome

Timeframe: From baseline to Week 3

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 3. Change from baseline: Score at Week 3 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=131 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=129 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=41 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 3 in Mean Weekly Pain Scores
-0.80 score on scale
Standard Error 0.17
-1.40 score on scale
Standard Error 0.17
-1.93 score on scale
Standard Error 0.26

PRIMARY outcome

Timeframe: From baseline to Week 4

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 4. Change from baseline: Score at Week 4 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=130 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=128 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=41 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 4 in Mean Weekly Pain Scores
-0.89 score on scale
Standard Error 0.17
-1.53 score on scale
Standard Error 0.17
-2.00 score on scale
Standard Error 0.26

PRIMARY outcome

Timeframe: From baseline to Week 5

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 5. Change from baseline: Score at Week 5 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=130 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=125 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=38 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 5 in Mean Weekly Pain Scores
-0.91 score on scale
Standard Error 0.17
-1.57 score on scale
Standard Error 0.17
-2.07 score on scale
Standard Error 0.27

PRIMARY outcome

Timeframe: From baseline to Week 6

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 6. Change from baseline: Score at Week 6 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=128 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=125 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=37 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 6 in Mean Weekly Pain Scores
-0.94 score on scale
Standard Error 0.17
-1.72 score on scale
Standard Error 0.17
-2.06 score on scale
Standard Error 0.27

PRIMARY outcome

Timeframe: From baseline to Week 7

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 7. Change from baseline: Score at Week 7 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=125 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=124 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=36 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 7 in Mean Weekly Pain Scores
-1.04 score on scale
Standard Error 0.17
-1.76 score on scale
Standard Error 0.17
-2.13 score on scale
Standard Error 0.27

PRIMARY outcome

Timeframe: From baseline to Week 8

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 8. Change from baseline: Score at Week 8 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=125 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=123 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=36 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 8 in Mean Weekly Pain Scores
-1.18 score on scale
Standard Error 0.17
-1.85 score on scale
Standard Error 0.17
-2.12 score on scale
Standard Error 0.27

PRIMARY outcome

Timeframe: From baseline to Week 9

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 9. Change from baseline: Score at Week 9 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=123 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=121 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=35 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 9 in Mean Weekly Pain Scores
-1.20 score on scale
Standard Error 0.17
-1.93 score on scale
Standard Error 0.17
-2.06 score on scale
Standard Error 0.28

PRIMARY outcome

Timeframe: From baseline to Week 10

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 10. Change from baseline: Score at Week 10 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=122 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=118 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=33 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 10 in Mean Weekly Pain Scores
-1.23 score on scale
Standard Error 0.17
-1.93 score on scale
Standard Error 0.18
-2.10 score on scale
Standard Error 0.28

PRIMARY outcome

Timeframe: From baseline to Week 11

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 11. Change from baseline: Score at Week 11 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=121 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=116 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=33 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 11 in Mean Weekly Pain Scores
-1.32 score on scale
Standard Error 0.17
-1.95 score on scale
Standard Error 0.18
-2.09 score on scale
Standard Error 0.28

PRIMARY outcome

Timeframe: From baseline to Week 12

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 12. Change from baseline: Score at Week 12 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=120 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=116 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=33 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 12 in Mean Weekly Pain Scores
-1.36 score on scale
Standard Error 0.17
-2.01 score on scale
Standard Error 0.18
-2.13 score on scale
Standard Error 0.29

PRIMARY outcome

Timeframe: From baseline to Week 13

Population: Full analysis set. Observed case (No imputation).

The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 13. Change from baseline: Score at Week 13 minus score at baseline

Outcome measures

Outcome measures
Measure
Placebo
n=119 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=115 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=33 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline at Week 13 in Mean Weekly Pain Scores
-1.38 score on scale
Standard Error 0.17
-2.04 score on scale
Standard Error 0.18
-2.12 score on scale
Standard Error 0.29

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form 36-Item Health Survey Scores at study endpoint. Short-Form 36-Item Health Survey is scored from 0-100 with higher scores reflecting better patient status.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Physical Functioning
2.70 score on scale
Standard Error 1.58
2.43 score on scale
Standard Error 1.59
3.86 score on scale
Standard Error 2.33

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form 36-Item Health Survey Scores at study endpoint. Short-Form 36-Item Health Survey is scored from 0-100 with higher scores reflecting better patient status.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Role Limitations-Physical
4.38 score on scale
Standard Error 2.47
2.28 score on scale
Standard Error 2.50
3.97 score on scale
Standard Error 3.70

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form 36-Item Health Survey Scores at study endpoint. Short-Form 36-Item Health Survey is scored from 0-100 with higher scores reflecting better patient status.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Bodily Pain
10.34 score on scale
Standard Error 1.97
11.84 score on scale
Standard Error 1.99
12.89 score on scale
Standard Error 2.91

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form 36-Item Health Survey Scores at study endpoint. Short-Form 36-Item Health Survey is scored from 0-100 with higher scores reflecting better patient status.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short Form 36-Item (SF-36) Health Survey: General Health Perception
2.31 score on scale
Standard Error 1.44
3.29 score on scale
Standard Error 1.45
4.40 score on scale
Standard Error 2.14

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form 36-Item Health Survey Scores at study endpoint. Short-Form 36-Item Health Survey is scored from 0-100 with higher scores reflecting better patient status.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Social Functioning
3.00 score on scale
Standard Error 2.39
8.06 score on scale
Standard Error 2.41
11.16 score on scale
Standard Error 3.54

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form 36-Item Health Survey Scores at study endpoint. Short-Form 36-Item Health Survey is scored from 0-100 with higher scores reflecting better patient status.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Role Limitations-Emotional
4.13 score on scale
Standard Error 2.52
5.05 score on scale
Standard Error 2.55
6.35 score on scale
Standard Error 3.77

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form 36-Item Health Survey Scores at study endpoint. Short-Form 36-Item Health Survey is scored from 0-100 with higher scores reflecting better patient status.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Vitality
5.28 score on scale
Standard Error 1.92
4.20 score on scale
Standard Error 1.94
12.87 score on scale
Standard Error 2.84

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form 36-Item Health Survey Scores at study endpoint. Short-Form 36-Item Health Survey is scored from 0-100 with higher scores reflecting better patient status.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Mental Health
3.84 score on scale
Standard Error 1.83
5.33 score on scale
Standard Error 1.85
7.81 score on scale
Standard Error 2.72

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in the weekly mean sleep interference score at study endpoint. Score range is from 0-10. Higher scores indicate more severe interference with sleep.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Mean Sleep Interference Scores
-0.74 score on scale
Standard Error 0.18
-1.59 score on scale
Standard Error 0.18
-1.36 score on scale
Standard Error 0.27

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form McGill Pain Questionnaire Scores at study endpoint. Sensory score ranges from 0-33. Higher scores indicate more severe pain.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short-Form McGill Pain Questionnaire: Sensory Scores
-2.82 score on scale
Standard Error 0.50
-4.60 score on scale
Standard Error 0.50
-4.95 score on scale
Standard Error 0.74

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form McGill Pain Questionnaire Scores at study endpoint. Affective score ranges from 0-12. Higher scores indicate more severe pain.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short-Form McGill Pain Questionnaire: Affective Scores
-0.83 score on scale
Standard Error 0.20
-1.43 score on scale
Standard Error 0.20
-1.39 score on scale
Standard Error 0.30

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form McGill Pain Questionnaire Scores at study endpoint. Total score ranges from 0-45. Higher scores indicate more severe pain.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short-Form McGill Pain Questionnaire: Total Scores
-3.68 score on scale
Standard Error 0.66
-6.03 score on scale
Standard Error 0.66
-6.36 score on scale
Standard Error 0.97

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form McGill Pain Questionnaire Scores at study endpoint. Visual Analogue Scale Score ranges from 0-100 mm. Higher scores indicate more severe pain.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short-Form McGill Pain Questionnaire: Visual Analogue Scale Scores
-16.92 mm
Standard Error 2.38
-24.19 mm
Standard Error 2.40
-24.41 mm
Standard Error 3.53

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Short-Form McGill Pain Questionnaire Scores at study endpoint. Present pain intensity score ranges from 0-5. Higher scores indicate more severe pain.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Short-Form McGill Pain Questionnaire: Present Pain Intensity Scores
-0.59 score on scale
Standard Error 0.09
-0.80 score on scale
Standard Error 0.09
-0.96 score on scale
Standard Error 0.13

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Medical Outcomes Study - Sleep Scale Scores at study endpoint. Score for sleep disturbance ranges from 0-100. Higher scores indicate more severe pain.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Medical Outcomes Study (MOS) - Sleep Scale: Sleep Disturbance
-9.03 score on scale
Standard Error 1.86
-15.40 score on scale
Standard Error 1.88
-12.81 score on scale
Standard Error 2.77

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Medical Outcomes Study - Sleep Scale Scores at study endpoint. Score for snoring ranges from 0-100. Higher scores indicate more of the attribute.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Medical Outcomes Study (MOS) - Sleep Scale: Snoring
-6.00 score on scale
Standard Error 2.51
-5.96 score on scale
Standard Error 2.53
-1.56 score on scale
Standard Error 3.71

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Medical Outcomes Study - Sleep Scale Scores at study endpoint. Score for sleep shortness of breath or headache ranges from 0-100. Higher scores indicate more of the attribute.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Medical Outcomes Study (MOS) - Sleep Scale: Sleep Shortness of Breath or Headache
-1.63 score on scale
Standard Error 1.69
-3.02 score on scale
Standard Error 1.71
-4.47 score on scale
Standard Error 2.51

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Medical Outcomes Study - Sleep Scale Scores at study endpoint. Score for quantity of sleep ranges from 0-24. Higher scores indicate more of the attribute named in the subscale.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Medical Outcomes Study (MOS) - Sleep Scale: Quantity of Sleep
0.37 score on scale
Standard Error 0.12
0.69 score on scale
Standard Error 0.12
0.54 score on scale
Standard Error 0.18

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Medical Outcomes Study - Sleep Scale Scores at study endpoint. Score for sleep adequacy ranges from 0-100. Higher scores indicate more of the attribute.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Medical Outcomes Study (MOS) - Sleep Scale: Sleep Adequacy
12.08 score on scale
Standard Error 2.61
17.69 score on scale
Standard Error 2.64
21.73 score on scale
Standard Error 3.87

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Medical Outcomes Study - Sleep Scale Scores at study endpoint. Score for somnolence ranges from 0-100. Higher scores indicate more of the attribute.

Outcome measures

Outcome measures
Measure
Placebo
n=134 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Medical Outcomes Study (MOS) - Sleep Scale: Somnolence
-2.96 score on scale
Standard Error 2.17
0.83 score on scale
Standard Error 2.19
4.83 score on scale
Standard Error 3.20

SECONDARY outcome

Timeframe: From baseline to Week 13 or up to study discontinuation (Study Endpoint)

Population: Full analysis set. Last observation carried forward.

The mean change from baseline in Medical Outcomes Study - Sleep Scale Scores at study endpoint. Score for overall sleep problems index ranges from 0-100. Higher scores indicate more of the attribute.

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Change From Baseline in Medical Outcomes Study (MOS) - Sleep Scale: Overall Sleep Problems Index
-7.91 score on scale
Standard Error 1.45
-11.45 score on scale
Standard Error 1.46
-9.73 score on scale
Standard Error 2.16

SECONDARY outcome

Timeframe: Week 13 or up to discontinuation

Population: Full analysis set. Last observation carried forward.

Clinical Global Impression of Change is a clinician-rated instrument that measures change in patient's overall status on a 7-point scale ranging from 1 (very much improved) to 7 (very much worse).

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Clinical Global Impression of Change
3.3 score on scale
Standard Deviation 1.2
2.9 score on scale
Standard Deviation 1.1
2.7 score on scale
Standard Deviation 1.1

SECONDARY outcome

Timeframe: Week 13 or up to discontinuation

Population: Full analysis set. Last observation carried forward.

The Patient Global Impression of Change is a patient-rated instrument that measures change in patient's overall status on a 7-point scale ranging from 1 (very much improved) to 7 (very much worse).

Outcome measures

Outcome measures
Measure
Placebo
n=135 Participants
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=133 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 Participants
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Patient Global Impression of Change
3.4 score on scale
Standard Deviation 1.3
3.2 score on scale
Standard Deviation 1.0
2.8 score on scale
Standard Deviation 1.0

Adverse Events

Placebo

Serious events: 3 serious events
Other events: 50 other events
Deaths: 0 deaths

Pregabalin 300 mg/Day

Serious events: 2 serious events
Other events: 71 other events
Deaths: 0 deaths

Pregabalin 600 mg/Day

Serious events: 1 serious events
Other events: 36 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
n=135 participants at risk
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 participants at risk
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 participants at risk
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Cardiac disorders
Atrial fibrillation
0.74%
1/135
0.00%
0/134
0.00%
0/45
Gastrointestinal disorders
Nausea
0.74%
1/135
0.00%
0/134
0.00%
0/45
General disorders
Feeling abnormal
0.74%
1/135
0.00%
0/134
0.00%
0/45
General disorders
Peripheral coldness
0.74%
1/135
0.00%
0/134
0.00%
0/45
General disorders
Pyrexia
0.00%
0/135
0.75%
1/134
0.00%
0/45
Infections and infestations
Herpes zoster
0.74%
1/135
0.00%
0/134
0.00%
0/45
Metabolism and nutrition disorders
Dehydration
0.00%
0/135
0.00%
0/134
2.2%
1/45
Metabolism and nutrition disorders
Hypoglycaemia
0.00%
0/135
0.00%
0/134
2.2%
1/45
Nervous system disorders
Brain stem infarction
0.00%
0/135
0.75%
1/134
0.00%
0/45
Nervous system disorders
Hypertensive encephalopathy
0.00%
0/135
0.75%
1/134
0.00%
0/45
Nervous system disorders
Hypoaesthesia
0.74%
1/135
0.00%
0/134
0.00%
0/45

Other adverse events

Other adverse events
Measure
Placebo
n=135 participants at risk
During a 13-week double-blind phase, subjects received matching placebo.
Pregabalin 300 mg/Day
n=134 participants at risk
During a 13-week double-blind phase, after 1 week of up titration, subjects received pregabalin 300 mg/day for 12 weeks.
Pregabalin 600 mg/Day
n=45 participants at risk
During a 13-week double-blind phase, after 1 week of up titration, subjects with low CLcr received pregabalin 300 mg/day and subjects with normal CLcr received pregabalin 600 mg/day for 12 weeks.
Gastrointestinal disorders
Constipation
0.74%
1/135
3.0%
4/134
6.7%
3/45
Gastrointestinal disorders
Diarrhoea
3.7%
5/135
2.2%
3/134
6.7%
3/45
General disorders
Oedema
0.74%
1/135
3.0%
4/134
6.7%
3/45
General disorders
Oedema peripheral
5.9%
8/135
14.2%
19/134
17.8%
8/45
Infections and infestations
Nasopharyngitis
14.8%
20/135
11.9%
16/134
8.9%
4/45
Investigations
Weight increased
3.7%
5/135
12.7%
17/134
15.6%
7/45
Nervous system disorders
Dizziness
6.7%
9/135
19.4%
26/134
40.0%
18/45
Nervous system disorders
Somnolence
8.9%
12/135
20.9%
28/134
40.0%
18/45

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer, Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of \<60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), \<12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential info other than study results.
  • Publication restrictions are in place

Restriction type: OTHER