The severity of illness for each participant was rated using the CGI-S scale. To assess CGI-S, the study physician answered the following question: "Considering your total clinical experience with this particular population, how mentally ill is the participant at this time?" Response choices included: 0 = not assessed; 1 = normal, not ill at all; 2 = borderline mentally ill; 3 = mildly ill; 4 = moderately ill; 5 = markedly ill; 6 = severely ill; and 7 = among the most extremely ill participants.

The efficacy of trial medication were rated for each participant using the CGI-I scale. The study physician must rate the participant's total improvement whether or not it is due entirely to drug treatment. All responses were compared to the participant's condition at baseline. Response choices include: 0 = not assessed; 1 =very much improved; 2 = much improved; 3 = minimally improved; 4 = no change; 5

=minimally worse; 6 = much worse; and 7 = very much worse.

The MADRS is a ten-item diagnostic questionnaire which psychiatrists use to measure the severity of depressive episodes in participants with mood disorders. The questionnaire includes questions on the following symptoms. 1. Apparent sadness 2. Reported sadness 3. Inner tension 4. Reduced sleep 5. Reduced appetite 6. Concentration difficulties 7. Lassitude 8. Inability to feel 9. Pessimistic thoughts 10. Suicidal thoughts. Higher MADRS score indicates more severe depression, and each item yields a score of 0 to 6. The overall score ranges from 0 to 60. The usual cut-off points are: 0 to 6 = normal/ symptom absent, 7 to 19 = mild depression, 20 to 34 = moderate depression, >34 = severe depression.

The SAS is composed of 10 items. This scale contains 10 items: Gait, Arm dropping, Shoulder shaking, Elbow rigidity, Wrist rigidity, Head rotation, Glabella Tap, Tremor, Salivation, Akathisia. Grade of severity of each item is rated using a 5-point scale, 1 (normal) and 5 (most severe). The total score ranges from 10 to 50. Negative changes from baseline indicate an improvement, with higher negative values indicating better improvement.

BARS consisted of 4 items: objective observation of akathisia by study physician, subjective feelings of restlessness by participant, participant distress due to akathisia, global evaluation of akathisia. The first 3 items were rated on a 4-point scale: 0 = absence of symptoms to 3 = severe condition. The global clinical evaluation were made on a 6-point scale, (0=absent, 1=questionable, 2=mild, 3=moderate, 4=marked, 5=severe). Participants were observed while they were seated and then stood for a minimum of 2 minutes in each position. Symptoms observed in other situations (e.g., while engaged in neutral conversation or engaged in activity on the ward) may also be rated. Subjective phenomena were elicited by direct questioning. The BARS Global Score was derived from the global clinical assessment of akathisia from the BARS panel. Total score ranges from 0 to 14. Negative changes from baseline indicate improvement, with higher negative values indicating better improvement.

The AIMS assessment consisted of 10 items describing symptoms of dyskinesia. Facial and oral movements (items 1 through 4), extremity movements (items 5 and 6), and trunk movements (item 7) were observed unobtrusively while the participant was at rest (e.g., in the waiting room), and the study physician would make global judgments on the participant's dyskinesia's (items 8 through 10). For this scale, the participant was seated on a hard, firm chair. These items are rated on a five-point scale: 0 (none), 1 (minimal), 2 (mild), 3 (moderate), 4 (severe). The total score ranges from 0 to 40. Negative changes from baseline indicate an improvement, with higher negative values indicating better improvement.

The AEs were one of the primary parameters to measure the safety and tolerability of individual participants. The AEs were captured for all participants from the time the ICF was signed until the end of the trial.

The vital signs were one of the primary parameters to measure the safety and tolerability of individual participants. Incidence of TEAEs of potential clinical relevance included abnormal values in heart rate, systolic and diastolic blood pressure, respiratory rate and weight that were identified based on pre-defined criteria.

The measurement of ECG was one of the primary parameters to measure the safety and tolerability of individual participants. Incidence of TEAEs of potential clinical relevance include abnormal changes in heart rate and ECG intervals of PR, QRS, QT, QTcB, and QTcF that were identified based on pre-defined criteria.

The laboratory values were one of the primary parameters to measure the safety and tolerability of individual participants. Incidence of TEAEs of potential clinical relevance include abnormal values in serum chemistry, hematology, urinalyses and prolactin tests that were identified based on pre-defined criteria.

The PANSS consisted of three subscales: a total of 30 symptom constructs. For each symptom construct, severity was rated on a 7-point scale, with a score of 1 (absence of symptoms) and a score of 7 (extremely severe symptoms). The PANSS positive subscale score was the sum of the rating scores for the 7 positive scale items from the PANSS panel. The 7 positive symptom constructs are delusions, conceptual disorganization, hallucinatory behavior, excitement, grandiosity, suspiciousness/persecution, and hostility. The PANSS Positive Subscale ranges from 7 (absence of symptoms) to 49 (extremely severe symptoms).

All participants who had received at least one dose of study medication were included in both efficacy and safety analyses dataset.

The PANSS consisted of three subscales: a total of 30 symptom constructs. For each symptom construct, severity was rated on a 7-point scale, with a score of 1 (absence of symptoms) and a score of 7 (extremely severe symptoms). The PANSS negative subscale score was the sum of the rating scores for the 7 negative scale items from the PANSS panel. The 7 negative symptom constructs: blunted affect, emotional withdrawal, poor rapport, passive apathetic withdrawal, difficulty in abstract thinking, lack of spontaneity and flow of conversation, stereotyped thinking. The PANSS Negative Subscale ranges from 7 (absence of symptoms) to 49 (extremely severe symptoms).

All participants who had received at least one dose of study medication were included in both efficacy and safety analyses dataset.

The severity of illness for each participant was rated using the CGI-S scale. To assess CGI-S, the study physician answered the following question: "Considering your total clinical experience with this particular population, how mentally ill is the participant at this time?" Response choices included: 0 = not assessed; 1 = normal, not ill at all; 2 = borderline mentally ill; 3 = mildly ill; 4 = moderately ill; 5 = markedly ill; 6 = severely ill; and 7 = among the most extremely ill participants.

All participants who had received at least one dose of study medication were included in both efficacy and safety analyses dataset.

The efficacy of trial medication were rated for each participant using the CGI-I scale. The study physician must rate the participant's total improvement whether or not it is due entirely to drug treatment. All responses were compared to the participant's condition at baseline. Response choices include: 0 = not assessed; 1 =very much improved; 2 = much improved; 3 = minimally improved; 4 = no change; 5

=minimally worse; 6 = much worse; and 7 = very much worse.

All participants who had received at least one dose of study medication were included in both efficacy and safety analyses dataset.

The MADRS is a ten-item diagnostic questionnaire which psychiatrists use to measure the severity of depressive episodes in participants with mood disorders. The questionnaire includes questions on the following symptoms. 1. Apparent sadness 2. Reported sadness 3. Inner tension 4. Reduced sleep 5. Reduced appetite 6. Concentration difficulties 7. Lassitude 8. Inability to feel 9. Pessimistic thoughts 10. Suicidal thoughts. Higher MADRS score indicates more severe depression, and each item yields a score of 0 to 6. The overall score ranges from 0 to 60. The usual cut-off points are: 0 to 6 = normal/ symptom absent, 7 to 19 = mild depression, 20 to 34 = moderate depression, >34 = severe depression.

All participants who had received at least one dose of study medication were included in both efficacy and safety analyses dataset.

The SAS is composed of 10 items. This scale contains 10 items: Gait, Arm dropping, Shoulder shaking, Elbow rigidity, Wrist rigidity, Head rotation, Glabella Tap, Tremor, Salivation, Akathisia. Grade of severity of each item is rated using a 5-point scale, 1 (normal) and 5 (most severe). The total score ranges from 10 to 50. Negative changes from baseline indicate an improvement, with higher negative values indicating better improvement.

All participants who had received at least one dose of study medication were included in both efficacy and safety analyses dataset.

BARS consisted of 4 items: objective observation of akathisia by study physician, subjective feelings of restlessness by participant, participant distress due to akathisia, global evaluation of akathisia. The first 3 items were rated on a 4-point scale: 0 = absence of symptoms to 3 = severe condition. The global clinical evaluation were made on a 6-point scale, (0=absent, 1=questionable, 2=mild, 3=moderate, 4=marked, 5=severe). Participants were observed while they were seated and then stood for a minimum of 2 minutes in each position. Symptoms observed in other situations (e.g., while engaged in neutral conversation or engaged in activity on the ward) may also be rated. Subjective phenomena were elicited by direct questioning. The BARS Global Score was derived from the global clinical assessment of akathisia from the BARS panel. Total score ranges from 0 to 14. Negative changes from baseline indicate improvement, with higher negative values indicating better improvement.

All participants who had received at least one dose of study medication were included in both efficacy and safety analyses dataset.

The AIMS assessment consisted of 10 items describing symptoms of dyskinesia. Facial and oral movements (items 1 through 4), extremity movements (items 5 and 6), and trunk movements (item 7) were observed unobtrusively while the participant was at rest (e.g., in the waiting room), and the study physician would make global judgments on the participant's dyskinesia's (items 8 through 10). For this scale, the participant was seated on a hard, firm chair. These items are rated on a five-point scale: 0 (none), 1 (minimal), 2 (mild), 3 (moderate), 4 (severe). The total score ranges from 0 to 40. Negative changes from baseline indicate an improvement, with higher negative values indicating better improvement.

All participants who had received at least one dose of study medication were included in both efficacy and safety analyses dataset.

The AEs were one of the primary parameters to measure the safety and tolerability of individual participants. The AEs were captured for all participants from the time the ICF was signed until the end of the trial.

Safety Sample includes all randomized participants who receive at least one dose of study medication.

The vital signs were one of the primary parameters to measure the safety and tolerability of individual participants. Incidence of TEAEs of potential clinical relevance included abnormal values in heart rate, systolic and diastolic blood pressure, respiratory rate and weight that were identified based on pre-defined criteria.

Safety Sample includes all randomized participants who receive at least one dose of study medication.

The measurement of ECG was one of the primary parameters to measure the safety and tolerability of individual participants. Incidence of TEAEs of potential clinical relevance include abnormal changes in heart rate and ECG intervals of PR, QRS, QT, QTcB, and QTcF that were identified based on pre-defined criteria.

Safety Sample includes all randomized participants who receive at least one dose of study medication.

The laboratory values were one of the primary parameters to measure the safety and tolerability of individual participants. Incidence of TEAEs of potential clinical relevance include abnormal values in serum chemistry, hematology, urinalyses and prolactin tests that were identified based on pre-defined criteria.

Safety Sample includes all randomized participants who receive at least one dose of study medication.