A Long-term, Safety and Efficacy Study of Intranasal Esketamine in Treatment-resistant Depression

MADRS measures depression severity, detects changes due to AD treatment. It consists 10 items (evaluate apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, suicidal thoughts), scored from 0 (item not present or normal) to 6 (severe or continuous presence of the symptoms), summed for a total possible score of 0 to 60. Higher scores indicate more severe condition. Negative change in score indicates improvement. Missing data was imputed using last observation carried forward (LOCF) method, last post baseline observation during the phase was carried forward as the "Endpoint".

MADRS measure depression severity, detects changes due to AD treatment. It evaluates 10 items: apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, suicidal thoughts, each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of the symptoms), summed for a total possible score of 0 to 60. Higher scores represent a more severe condition. Negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

PHQ-9 is a 9-item, self-reporting scale assessing depressive symptoms. Each item was rated on a 4-point scale (0 = Not at all, 1 = Several Days, 2 = More than half the days, and 3 = Nearly every day), with a total score range of 0-27. A higher score indicates greater severity of depression. Severity of PHQ-9 categorized as follows: none-minimal (0-4), mild (5-9), moderate (10-14), moderately severe (15-19), severe (20-27). The recall period is 2 weeks. Negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

PHQ-9 is a 9-item, self-reporting scale assessing depressive symptoms. Each item was rated on a 4-point scale (0 = Not at all, 1 = Several Days, 2 = More than half the days, and 3 = Nearly every day), with a total score range of 0-27. A higher score indicates greater severity of depression. severity of PHQ-9 categorized as follows: none-minimal (0-4), mild (5-9), moderate (10-14), moderately severe (15-19), severe (20-27). The recall period is 2 weeks. Negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

CGI-S measures severity of participant's illness that include knowledge of participant's history, psychosocial circumstances, symptoms, behavior, impact of symptoms on participant's ability to function. CGI-S evaluates severity of psychopathology on a scale range from 0 - 7, where 0=not assessed; 1=normal (not at all ill); 2=borderline mentally ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill; 7=among the most extremely ill patients. Negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as "Endpoint".

The CGI-S measures the severity of the participant's illness that include knowledge of the participant's history, psychosocial circumstances, symptoms, behavior, and the impact of the symptoms on the participant's ability to function. The CGI-S evaluates the severity of psychopathology on a scale of 0 to 7, where 0=not assessed; 1=normal (not at all ill); 2=borderline mentally ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill; 7=among the most extremely ill patients. Negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

GAD-7 is brief, validated 7-item self-reported assessment of overall anxiety. Participant's responded to each item using a 4 point scale with response categories: 0=not at all, 1=several days, 2=more than half the days, and 3=nearly every day. Item responses are summed to yield total score ranges from 0 to 21, higher scores indicate more anxiety. Negative change in score indicates improvement. Severity of GAD-7 is categorized as: None (0-4), Mild (5-9), Moderate (10-14), Severe (15 -21). Missing data was imputed using LOCF method, last post baseline observation during the phase was carried forward as "Endpoint".

GAD-7 is brief and validated 7-item self-reported assessment of overall anxiety. Participants respond to each item using a 4 point scale with response categories: 0=not at all, 1=several days, 2=more than half the days, and 3=nearly every day. Item responses are summed to yield a total score ranges from 0 to 21, higher scores indicate more anxiety. Negative change in score indicates improvement. Severity of the GAD-7 is categorized as follows: None (0-4), Mild (5-9), Moderate (10-14), Severe (15 -21). Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

EQ-5D-5L consists of EQ-5D-5L descriptive system and EQ visual analogue scale (EQ VAS). EQ-5D-5L descriptive system comprises of 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each has 5 levels of perceived problems (1-no problem, 2-slight problems, 3-moderate problems, 4-severe problems, 5-extreme problems). Participant selects answer for each of 5 dimensions considering response that best matches his/her health "today". Responses were used to generate a Health Status Index (HSI). HSI ranges from -0.148 to 0.949 and is anchored at 0 (health state value equal to dead) and 1 (full health). EQ VAS self-rating records the respondent's own assessment of his/her overall health status at time of completion, on a scale of 0 (worst health you can imagine) to 100 (best health you can imagine). Sum score ranges from 0 to 100 where, sum score = (sum of the scores from the 5 dimensions minus 5) *5. Higher score indicates worst health state.

EQ-5D-5L consists of EQ-5D-5L descriptive system and EQ VAS. EQ VAS self-rating records the respondent's own assessment of his/her overall health status at time of completion, on a scale of 0 (worst health you can imagine) to 100 (best health you can imagine).

EQ-5D-5L consists of EQ-5D-5L descriptive system and EQ VAS. EQ-5D-5L descriptive system comprises of 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each has 5 levels of perceived problems (1-no problem, 2-slight problems, 3-moderate problems, 4-severe problems, 5-extreme problems). Participant selects answer for each of 5 dimensions considering response that best matches his/her health "today". Responses were used to generate a HSI. HSI ranges from -0.148 to 0.949 and is anchored at 0 (health state value equal to dead) and 1 (full health).

EQ-5D-5L consists of EQ-5D-5L descriptive system and EQ VAS. EQ-5D-5L descriptive system comprises of 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each has 5 levels of perceived problems (1-no problem, 2-slight problems, 3-moderate problems, 4-severe problems, 5-extreme problems). Participant selects answer for each of 5 dimensions considering response that best matches his/her health "today". Responses were used to generate a Health Status Index (HSI). HSI ranges from -0.148 to 0.949 and is anchored at 0 (health state value equal to dead) and 1 (full health). EQ VAS self-rating records the respondent's own assessment of his/her overall health status at time of completion, on a scale of 0 (worst health you can imagine) to 100 (best health you can imagine). Sum score ranges from 0 to 100 where, sum score = (sum of the scores from the 5 dimensions minus 5) *5. Higher score indicates worst health state.

EQ-5D-5L consists of EQ-5D-5L descriptive system and EQ VAS. EQ VAS self-rating records the respondent's own assessment of his/her overall health status at time of completion, on a scale of 0 (worst health you can imagine) to 100 (best health you can imagine).

EQ-5D-5L consists of EQ-5D-5L descriptive system and EQ VAS. EQ-5D-5L descriptive system comprises of 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each has 5 levels of perceived problems (1-no problem, 2-slight problems, 3-moderate problems, 4-severe problems, 5-extreme problems). Participant selects answer for each of 5 dimensions considering response that best matches his/her health "today". Responses were used to generate a HSI. HSI ranges from -0.148 to 0.949 and is anchored at 0 (health state value equal to dead) and 1 (full health).

SDS was a 5 item questionnaire used for assessment of functional impairment and associated disability. The first three items assess disruption of (1) work/school, (2) social life, (3) family life/home responsibilities using a 0 to 10 rating scale. Score for the first three items are summed to create a total score of 0 to 30, higher score indicates greater impairment and a negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

SDS was a participant-reported outcome measure and was a 5 item questionnaire used for assessment of functional impairment and associated disability. The first three items assess disruption of (1) work/school, (2) social life, and (3) family life/home responsibilities using a 0 to 10 rating scale. The score for the first three items are summed to create a total score of 0 to 30 where a higher score indicates greater impairment and a negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

Response is defined as greater than or equal to (>=) 50 % reduction from baseline in the MADRS total score. MADRS measures depression severity, detects changes due to AD treatment. It consists 10 items (evaluate apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, suicidal thoughts), scored from 0 (item not present or normal) to 6 (severe or continuous presence of the symptoms), summed for a total possible score of 0 to 60. Higher scores indicate more severe condition. Negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

Response is defined as >= 50 % reduction from baseline (IND phase) in PHQ-9 total score. PHQ-9 is a 9-item, self-reporting scale assessing depressive symptoms. Each item was rated on a 4-point scale (0 = Not at all, 1 = Several Days, 2 = More than half the days, and 3 = Nearly every day), with a total score range of 0-27. The scores are summed for a total score ranging from 0-27. A higher score indicates greater severity of depression. Severity of PHQ-9 categorized as follows: none-minimal (0-4), mild (5-9), moderate (10-14), moderately severe (15-19), severe (20-27). The recall period is 2 weeks. Negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

Remission is defined as MADRS total score less than or equal to (<=) 12. MADRS measures depression severity, detects changes due to AD treatment. It consists 10 items (evaluate apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, suicidal thoughts), scored from 0 (item not present or normal) to 6 (severe or continuous presence of the symptoms), summed for a total possible score of 0 to 60. Higher scores indicate more severe condition. Negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

Remission is defined as PHQ-9 total score <= 4. PHQ-9 is a 9-item, self-reporting scale assessing depressive symptoms. Each item was rated on a 4-point scale (0 = Not at all, 1 = Several Days, 2 = More than half the days, and 3 = Nearly every day), with a total score range of 0-27. The scores are summed for a total score ranging from 0-27. A higher score indicates greater severity of depression. severity of PHQ-9 categorized as follows: none-minimal (0-4), mild (5-9), moderate (10-14), moderately severe (15-19), severe (20-27). The recall period is 2 weeks. Negative change in score indicates improvement. Missing data was imputed using LOCF method and the last post baseline observation during the phase was carried forward as the "Endpoint".

The CADSS used to measure present-state dissociative symptoms, and to assess treatment-emergent dissociative symptoms. It comprises 23 subjective items divided into 3 components: depersonalization (with score range from 0 to 28), derealization (with score range from 0 to 52), and amnesia (with score range from 0 to 8). Participants responses are coded on a 5-point scale (0 = "Not at all", 1 = "Mild", 2 = "Moderate", 3 = 'Severe" and 4 = "Extreme"). The total score is sum of the 23 items and range from 0 to 92, where 0 (best) and 92 (worst). A higher score indicates a more severe condition.

The CADSS used to measure present-state dissociative symptoms, and to assess treatment-emergent dissociative symptoms. It comprises 23 subjective items divided into 3 components: depersonalization (with score range from 0 to 28), derealization (with score range from 0 to 52), and amnesia (with score range from 0 to 8). Participants responses are coded on a 5-point scale (0 = "Not at all", 1 = "Mild", 2 = "Moderate", 3 = 'Severe" and 4 = "Extreme"). The total score is sum of the 23 items and range from 0 to 92, where 0 (best) and 92 (worst). A higher score indicates a more severe condition.

Percentage of participants with treatment-emergent acute hypertension (Systolic Blood Pressure >=180 millimeters of mercury [mm Hg] or Diastolic Blood Pressure >= 110 mm Hg) during IND and OP/MA Phases were evaluated.