Duloxetine for Multiple Sclerosis Pain

24-hour average pain severity scores recorded daily on an 11-point Likert scale, evaluated as a weekly mean, with scores ranging from 0 (no pain) to 10 (worst possible pain). Participants should complete electronic diary each day upon awakening. The 11-point Likert scale was used for assessment of 24-hour average pain and evaluated as weekly means. Scores range from 0 (no pain) to 10 (worst possible pain). The Least Squares Mean (LS Mean) Value was adjusted for investigative site and baseline severity.

This is a nominal outcome reflecting whether or not a clinically-important efficacy outcome (≥30% or ≥50% pain reduction from baseline) was achieved at endpoint. It is based on a comparison between baseline and endpoint scores on an ordinal scale with scores from 0 (no pain) to 10 (worst possible pain). Used were the weekly mean of the scores of the average pain severity over the last 24 hours. The weekly averages were based on daily assessments recorded by participants in their diaries.

A scale that measures the participant'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). The Least Squares (LS) Mean Value was adjusted for investigative site and baseline severity.

Measures pain severity and interference on function. Severity scores: 0 (no pain) to 10 (severe pain) on each question assessing worst, least, and average pain in past 24 hours, and pain right now. Interference scores: 0 (does not interfere) to 10 (completely interferes) on each question assessing pain interference in past 24 hours, such as general activity, mood, normal work, relations with other people, and sleep. Average interference=average of non-missing scores of individual interference items. Least Squares (LS) Mean Value was adjusted for investigative site and baseline severity.

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 participants). The Least Squares (LS) Mean Value was adjusted for investigative site and baseline severity.

A 54 question measure covers 12 domains; assesses mental and physical health. Each domain score is converted into a 0-100 score based on individual item responses; higher scores=better health status. The physical health composite score is a weighted average of the physical health scales, such as physical function, health perceptions, and energy. The mental health composite score is a weighted average of the mental health scales, such as overall quality of life, cognitive function, and health distress. The Least Squares (LS) Mean Value was adjusted for investigative site and baseline severity.

C-SSRS scale captures occurrence, severity, and frequency of suicide-related thoughts and behaviors. Number of participants with suicidal behaviors, ideations, and acts are provided. Suicidal behavior: a "yes" answer to any of 5 suicidal behavior questions: preparatory acts or behavior, aborted attempt, interrupted attempt, actual attempt, and completed suicide. Suicidal ideation: a "yes" answer to any one of 5 suicidal ideation questions, which includes wish to be dead, and 4 different categories of active suicidal ideation. Suicidal act: a "yes" answer to actual attempt or completed suicide.

Weekly mean of the night pain severity scores recorded daily on an 11-point Likert scale, an ordinal scale ranging from 0 (no pain) to 10 (worst possible pain). Participants should complete the electronic diary each day upon awakening. The Least Squares (LS) Mean Value was adjusted for investigative site and baseline severity.

The BDI-II is completed by the participant to rate the severity of depressive symptoms and any improvement during the course of the trial. The total score ranges from 0 to 63 with higher the score indicating more severe depressive symptoms. Question #9 is suicidal thoughts and wishes with a score ranging from 0 to 3.

Summary tables of serious adverse events (SAEs) and all other non-serious adverse events are located in the Reported Adverse Event Module.

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

BPI-S and BPI-I are self-reported scales measuring severity of pain and interference on function. Severity scores: 0 (no pain) to 10 (severe pain) on each question assessing worst pain, least pain, and average pain in past 24 hours, and pain right now. Interference scores: 0 (does not interfere) to 10 (completely interferes) on each question assessing interference of pain in past 24 hours for general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life. Average interference = average of non-missing scores of individual interference items.

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 participants).

A 54 question measure covers 12 domains; assesses mental and physical health. Each domain score is converted into a 0-100 score based on individual item responses; higher scores=better health status. The physical health composite score is a weighted average of the physical health scales, such as physical function, health perceptions, and energy. The mental health composite score is a weighted average of the mental health scales, such as overall quality of life, cognitive function, and health distress.

C-SSRS scale captures occurrence, severity, and frequency of suicide-related thoughts and behaviors. Number of participants with suicidal behaviors, ideations, and acts are provided. Suicidal behavior: a "yes" answer to any of 5 suicidal behavior questions: preparatory acts or behavior, aborted attempt, interrupted attempt, actual attempt, and completed suicide. Suicidal ideation: a "yes" answer to any one of 5 suicidal ideation questions, which includes wish to be dead, and 4 different categories of active suicidal ideation. Suicidal act: a "yes" answer to actual attempt or completed suicide.

Weekly mean of the night pain severity scores recorded daily on an 11-point Likert scale, an ordinal scale ranging from 0 (no pain) to 10 (worst possible pain). Participants should complete the electronic diary each day upon awakening. Each weekly mean change represents change relative to week 6, the baseline of the extension phase.

The BDI-II is completed by the participant to rate the severity of depressive symptoms and any improvement during the course of the trial. The total score ranges from 0 to 63 with higher the score indicating more severe depressive symptoms. Question #9 is suicidal thoughts and wishes with the score ranging from 0 to 3.

Summary tables of serious adverse events (SAEs) and all other non-serious adverse events are located in the Reported Adverse Event Module.

Change from baseline to acute phase endpoint in laboratory assessment for bicarbonate, HCO3.

Change from baseline to acute phase endpoint in laboratory assessment of creatinine.

Change from baseline to acute phase endpoint in laboratory assessment of platelet count.

Change from baseline to acute phase endpoint in laboratory assessment of inorganic phosphorus.

Change from baseline to acute phase endpoint in laboratory assessment of uric acid.