AE=any untoward medical occurrence that develops or worsens in severity during the conduct of the clinical study of a pharmaceutical product and does not necessarily have a causal relationship to the study drug. SAE=any AE that resulted in any of the following: death; a life-threatening adverse event; inpatient hospitalization or prolongation of existing hospitalization; persistent or significant disability/incapacity; a congenital anomaly or birth defect; an important medical event that required medical intervention to prevent 1 of the outcomes listed in this definition. Treatment-related AEs=definite, probable, possible, or missing relationship to study drug. Protocol-defined AEs=treatment-emergent adverse events associated with skin rash, hypersensitivity reaction, emergent suicidal ideation or suicide attempt, depression, psychosis, and seizure or suspected seizure were considered to be of potential clinical importance. DB=double-blind portion of the study (NCT00893789).

Safety Analysis Set (study participants who received at least 1 dose of study drug)

Therapeutic classification of concomitant medications used by participants throughout the study. Participants are counted only once in each therapeutic class category.

Safety Analysis Set

Criteria for clinically significant abnormal serum chemistry values: alanine aminotransferase (ALT) ≥3x upper limit of normal (ULN); aspartate aminotransferase (AST) ≥3x ULN; alkaline phosphatase ≥3x ULN; gamma-glutamyl transpeptidase (GGT) ≥3x ULN; lactate dehydrogenase (LDH) ≥3x ULN; blood urea nitrogen (BUN) ≥10.71 mmol/L; creatinine ≥177 μmol/L; uric acid, men ≥625 μmol/L, women ≥506 μmol/L; bilirubin (total) ≥34.2 μmol/L.

Participants in the Safety Analysis Set who had a baseline and at least one post-baseline value.

Criteria for clinically significant abnormal vital signs values: pulse, ≥120 beats per minute (bpm) and increase from baseline of ≥15 bpm or ≤50 bpm and decrease from baseline of ≥15 bpm; systolic blood pressure, ≥180 mm Hg and increase from baseline of ≥20 mm Hg or ≤90 mm Hg and decrease from baseline of ≥20 mm Hg; diastolic blood pressure, ≥105 mm Hg and increase from baseline of ≥15 mm Hg or ≤50 mm Hg and decrease from baseline of ≥15 mm Hg; temperature >38.3º celsius (C) and change from baseline of ≥1.1°C. Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Safety Analysis Set

The participant's evaluation of excessive daytime sleepiness was measured by the ESS. The ESS score is based on responses to questions referring to 8 everyday situations (eg, sitting and reading, talking to someone, being stopped in traffic) and reflects a patient's propensity to fall asleep in those situations. The ESS score is derived from the sum of the values from questions corresponding to the 8 situations. Scores for the ESS range from 0 to 24, with a higher score indicating a greater daytime sleepiness. This test was self-administered. Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Full Analysis Set = participants in the Safety Analysis Set who had at least 1 post-baseline efficacy assessment; n=number of participants with value at baseline and given time point.

The clinician's rating of disease severity as assessed by the Clinical Global Impression of Severity (CGI-S). CGI-S assesses the severity of the subject's condition on a 7-point scale ranging from 1 (normal, not at all ill) to 7 (among the most extremely ill); the 7 categories include the following: normal-shows no sign of illness, borderline ill, mildly (slightly) ill, moderately ill, markedly ill, severely ill, and among the most extremely ill. Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Full Analysis Set = participants in the Safety Analysis Set who had at least 1 post-baseline efficacy assessment; n=number of participants with value at baseline and given time point.

The clinician's rating of disease severity as assessed by the Clinical Global Impression of Severity (CGI-S). CGI-S assesses the severity of the subject's condition on a 7-point scale ranging from 1 (normal, not at all ill) to 7 (among the most extremely ill); the 7 categories include the following: normal-shows no sign of illness, borderline ill, mildly (slightly) ill, moderately ill, markedly ill, severely ill, and among the most extremely ill. Improvement is defined as at least 1 point improvement from baseline. Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Full Analysis Set = participants in the Safety Analysis Set who had at least 1 post-baseline efficacy assessment; n=number of participants with value at baseline and given time point.

The TBI-WIS is a validated participant-rated instrument for assessing a participant's functional ability after TBI and the functional demands of their job. The assessment consists of 36 questions to which the participant responded with a "true" or "not true" answer. To score the questionnaire, the number of "true" responses is counted: if < 2, the risk for work instability is low; 2 to 23, the risk is medium; and >23, the risk is high. Score range is 0 (lowest risk for work instability) to 36 (highest risk for work instability). Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Participants in the Full Analysis Set (those in the Safety Analysis Set with at least 1 post-baseline efficacy assessment) with a TBI-WIS score at baseline; n=number of participants with value at baseline and given time point.

Criteria for clinically significant abnormal hematology values: hematocrit, men <0.37 L/L or women <0.32 L/L; hemoglobin, men ≤115 g/L or women ≤95 g/L; white blood cell (WBC) count ≤3x10^9/L or ≥20x10^9/L; eosinophils ≥10%; absolute neutrophil count (ANC) ≤1x10^9/L; platelet count ≤75x10^9/L or ≥700x10^9/L.

Safety Analysis Set

Criteria for clinically significant abnormal urinalysis values: blood (hemoglobin) ≥2 unit increase from baseline; glucose ≥2 unit increase from baseline; ketones ≥2 unit increase from baseline; total protein ≥2 unit increase from baseline. Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Safety Analysis Set

Criteria for World Health Organization (WHO) notable blood pressure (BP) values: systolic blood pressure ≥140 mm Hg plus increase of ≥10% from baseline; diastolic blood pressure ≥90 mm Hg plus increase of ≥10% from baseline. Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Safety Analysis Set; participants with a baseline and postbaseline value.

Number of participants with shifts from normal/abnormal 12-lead ECG findings at baseline (BL) to (→) normal/abnormal findings overall are presented. For overall, the worst postbaseline finding (the abnormal finding if there are both normal and abnormal findings) for the participant between baseline and endpoint (defined as last postbaseline observation, up to Week 12) is summarized. Any ECG finding that was judged by the investigator as a clinically meaningful change (worsening) compared to baseline was recorded as an adverse event. Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Safety Analysis Set; only those participants with both baseline and endpoint ECG findings are summarized.

Number of participants with shifts from normal/abnormal physical examination findings at baseline (BL) to (→) normal/abnormal findings at endpoint (EP). Shifts (normal and abnormal) from baseline to endpoint are summarized using participant counts for each physical examination category. A newly diagnosed finding was defined as being normal or missing at baseline and abnormal at least once during the study. Any physical examination finding that was judged by the investigator as a clinically significant change (worsening) compared to a baseline value was considered an adverse event. HEENT= head, eyes, ears, nose, throat. Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Safety Analysis Set; only those participants with both baseline and endpoint physical examination findings are summarized.

The percentage of participants answering 'yes' to any of the 9 yes/no questions about suicidal behaviors, ideations, and acts at given time points are presented. The C-SSRS captures occurrence, severity, and frequency of suicide-related thoughts and behaviors since last visit (SLV). Questions included the presence (yes) or absence (no) of the following: a wish to be dead; nonspecific active suicidal thoughts; actual suicide attempt; non-suicidal self-injurious behavior; interrupted attempt; aborted attempt; suicidal behavior; preparatory suicidal acts or behavior; and completed suicide.

Safety Analysis Set; n=number of participants with nonmissing value at given time point.

The self-reported S-HAM-D6 is a validated scale developed from the core depressive items of the 17 Item Hamilton Depression Inventory (HAM-D17). The HAM-D6 (Items 1, 2, 7, 8, 10, 13 from the 17-item HAMD) evaluates "core" symptoms of Major Depressive Disorder (MDD). The assessment consists of 6 items representing depressed mood, guilt, work and activities, retardation, psychic anxiety, and general somatic symptoms. Each item is evaluated and scored using either a 5-point scale (e.g. absent, mild, moderate, severe, very severe) or a 3-point scale (e.g. absent, mild, marked). Total scores range from 0 (normal) to 22 (severe). Scores greater than 12 indicate moderate to severe depression. Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Participants in the Safety Analysis Set with a Baseline value; n=number of participants with baseline and postbaseline value at given time point.

The MOS-CF 6 is an instrument to assess patient self-reported cognitive function. Items were selected to cover 6 relevant aspects of cognitive functioning as follows: confusion, concentration/thinking, attention, memory, reasoning, problem solving, and processing speed. The CF 6-item responses include 6 choices, ranging from "none of the time" to "all of the time." The CF-6 is scored by summing responses across the 6 items and converting the total to a 0- to 100-point scale, with higher scores indicating better cognitive functioning. Baseline was defined as the baseline value from the double-blind study C10953/3067/ES/MN (NCT00893789) from which the participants entered into this open-label study.

Changes from baseline in MOS-CF6 total score were not summarized. This assessment was not performed in study C10953/3067/ES/MN (NCT00893789); therefore, the data obtained at screening for the current study would represent true baseline data only for new participants, of which there were none.