Safety and Efficacy Study in Patients With Major Depressive Disorder

The bech melancholia is sum of scores on 6 items- depressed mood, feelings of guilt, work and activities, retardation, anxiety psychic, somatic symptoms general (items 1, 2, 7, 8, 10 and 13 respectively). Each item having 5 responses. The items are rated on a scale of 0-4, where 0=absent; 1=doubtful to mild; 2=mild to moderate; 3=moderate to severe; 4=very severe. Total possible score is 0-24. where the lowest possible score was 0, which represented an absence of depression and higher scores reflecting greater severity of diseases. Baseline was defined as the assessment done on Day 1. Change from baseline was the difference between BECH 6 scale at the time point being analyzed to randomization.

Time frame: Baseline (Day 1, pre-dose), Day 14 and Day 42

Population: Intent-to-treat population. Only those participants available at the specified time points were analyzed.

Data for change from Baseline was reported for PR Interval, QRS Duration, QT Interval, QTcB, QTcF, and RR Interval. 12-lead ECGs was obtained at each time point during the study using an ECG machine that automatically calculated the heart rate and measures PR, QRS, QT, and QTcB ,QTcF, and RR intervals. Day -1 evening (PM) was the Baseline for participants with only Day -1 records. Day 1 PM Dose was the Baseline for participants with Day 1 records. Baseline was the mean of replicate assessments. Change from Baseline was the difference between the value at the time point analyzed and baseline value.

Time frame: Baseline (Day 1) and up to Day 42

Population: All subjects population. Only those participants available at the specified time points were analyzed.

Clinical liver chemistry parameters of Alkaline Phosphatase , ALT, AST, GGT were assessed on screening, Day 7, Day 14, Day 28 and Day 42. Screening was defined as Baseline. Change from Baseline in liver chemistry was the difference between the value at time point analyzed and screening.

Time frame: Baseline (screening) up to Day 42

Population: All subjects population. Only those participants available at the specified time points were analyzed.

Liver chemistry parameters: Direct Bilirubin and Total Bilirubin were assessed on screening, Day 7, Day 14, Day 28 and Day 42. Screening was defined as Baseline. Change from Baseline in liver chemistry was the difference between the value at time point analyzed and screening.

Time frame: Baseline (screening) up to Day 42

Population: All subjects population. Only those participants available at the specified time points were analyzed.

The QIDS-SR is a 16-item, participant-rated short form of the Inventory of Depressive Symptomatology that assesses 9 domains: sad mood, concentration, self-criticism, suicidal ideation, interest, energy/fatigue, sleep disturbance (initial, middle, and late insomnia or hypersomnia), appetite/weight increase/decrease and psychomotor agitation/retardation. A total score was obtained by summing scores on each domain. the scores ranges from 0 (none) to 27 (very severe), where the highest possible score was 27, which represented the most severe measure of depression; the lowest possible score was 0, which represents an absence of depression. Baseline was defined as the assessment done on Day 1. Change from Randomization in total score was the difference between QIDS total score at the time point being analyzed to randomization.

Time frame: Baseline (Day 1, pre-dose), Day 14 and Day 42

Population: Intent-to-treat population. Only those participants available at the specified time points were analyzed.

HAMD-17 is a 17-item scale that evaluates depressed mood, vegetative and cognitive symptoms of depression, and co-morbid anxiety symptoms. The 17 items were rated on either a 5-point (0-4) or a 3-point (0-2) scale. In general, the 5 point scale items use a rating of 0=absent; 1=doubtful to mild; 2=mild to moderate; 3=moderate to severe; 4=very severe. The 3-point scale items use a rating of 0=absent; 1=probable or mild; 2=definite. The total HAMD-17score ranges from 0 (not ill) to 52 (severely ill). The highest possible score was 52, which represented the most severe measure of depression; the lowest possible score was 0, which represents an absence of depression. Baseline was defined as the assessment done on Day 1 (pre-dose). Change from baseline in total Score was the difference between HAMD total score at the time point being analyzed to Day 1.

Time frame: Baseline (Day 1, pre-dose), Day 14 and Day 42

Population: Intent-to-treat population comprised of all participants who gave informed consent, were randomized, received at least one dose of double blind medication and for whom at least one post-randomization assessment was available. Only those participants available at the specified time points were analyzed.

Heart rate is the speed of the heartbeat measured by the number of contractions of the heart per minute, (beats per minute). Heart rate was assessed at the specified time points. Measurements were taken after the participant has been semi-supine for at least 5 minutes. Day 1 was Baseline and change from Baseline was difference between the value at the time point analyzed and baseline value.

Time frame: Baseline (Day 1), Day 2, 3, 4, 5, 6, 7, 8, 14, 21, 28 and 42

Population: All subjects population. Only those participants available at the specified time points were analyzed.

Semi-supine systolic and diastolic blood pressure was assessed at the specified time points. Measurements were taken after the participant has been semi-supine for at least 5 minutes. BP was measured at least every hour until the values were within the normal range. Day 1 was Baseline and change from Baseline was difference between the value at the time point analyzed and baseline value.

Time frame: Baseline (Day 1) , Day 2, 3, 4, 5, 6, 7, 8, 14, 21, 28 and 42

Population: All subjects population. Only those participants available at the specified time points were analyzed.

Urinalysis parameters included: Urine Occult Blood, Urine Ketones, Urine Ketones. data for number of participants with abnormal urinanalysis parameters was reported by dipstick method. dipstick was a strip used to detect the presence or absence of these parameters in the urine sample. dipstick test gives results in a semi-quantitative manner, and results can be read as negative, Trace, 1+, 2+, and 3+, indicating proportional concentrations in the urine sample. Urine occult blood dipstick and urine general dipstick were semi quantitative results. Urine glucose and urine ketones dipstick results were in milimole per liter, urine protein dipstick results were in gram per liter.

Time frame: Screening (Day -10 to -2), Day 14 and Day 42

Population: All subjects population. Only those participants available at the specified time points were analyzed.

Only those parameters for which at least one value of CC was reported were summarized. Pre-defined limits of CC (CC Low \[relative to the lower limit of normal\], CC High \[relative to the upper limit of normal\]) were: albumin (unit: gram per liter): \< 30, NA; alanine aminotransferase (ALT): NA, \>= 3 times upper limit of normal; aspartate aminotransferase (AST): NA, \>= 3 times upper limit of normal; total bilirubin: NA, \>=1.5 times upper limit of normal; calcium: \< 2.0, \> 2.75; gamma glutamyl transferase (GGT): \< 3.0, \> 9; potassium: \< 3.0, \> 5.5; magnesium: \< 0.5, \> 1.23.

Time frame: Up to Day 42

Population: All subjects population. Only those participants available at the specified time points were analyzed.

Only those parameters for which at least one value of CC was reported were summarized. Pre-defined limits of CC (CC Low \[relative to the lower limit of normal\], CC High \[relative to the upper limit of normal\]) were: hemoglobin (Hb): \> 25, 180; hematocrit (Hct): \> 0.075, 0.54; absolute neutrophil count (ANC): \< 1.5, NA; platelet: \< 100, \> 550; white blood cells (WBC): \< 3,\> 20

Time frame: Up to Day 42

Population: All subjects population. Only those participants available at the specified time points were analyzed.

Data for number of participants who presented one or more adverse events (serious or non serious) was reported. An AE was defined as any untoward medical occurrence (MO) in a participant temporally associated with the use of a medicinal product (MP), whether or not considered related to the MP and can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with its use. The SAE was any untoward MO that, at any dose, results in death, life threatening, persistent or significant disability/incapacity, results in or prolongs inpatient hospitalization, congenital abnormality or birth defect, that may not be immediately life-threatening or result in death or hospitalization but may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition.

Time frame: Up to Day 52

Population: All subjects population. The number of participants available at the particular time point were used for analysis.

The C-SSRS was a clinician-rated scale that evaluated severity and change of suicidality by integrating both behaviour and ideation. The 2 of 3 sections of the scale were suicidal behavior and suicidal ideation. For suicidal behaviour participants were scored as non-suicidal-0, preparatory acts or behavior communicating ideation-01, aborted attempt-2, interrupted attempt-3 or actual attempt-4. The score ranges from 0-4, where 0 was absence of suicidal behavior and 4 being the most severe form of suicidal behavior. On the Suicidal Ideation scale, participants were scored as non-suicidal-0, wish to be dead-1, non-specific active suicidal thoughts-2, active suicidal ideation with associated thoughts of methods without intent-3, active suicidal ideation with some intent to act on suicidal thoughts without clear plan-4, active suicidal ideation with plan and intent-5. The score ranges from 0-5, where 0 was absence of suicidal ideation and 5 being the most severe form of suicidal ideation.

Time frame: Up to Day 52

Population: All subjects population. Only those participants available at the specified time points were analyzed.

PK samples were supposed to be collected to estimate individual specific parameters like AUC however data for this outcome was not collected.

Time frame: Day 4 (AM pre-dose), Day 7 (AM and PM pre-dose), Day 10 (AM and PM pre-dose), Day 14 (AM and PM pre-dose), Day 21 (AM pre dose), Day 28 (AM pre dose), Day 42 (AM pre-dose and 4-6 h post AM dose)

Population: PK population.

PK samples were supposed to be collected to estimate individual specific parameters like Cave however data for this outcome was not collected.

Time frame: Day 4 (AM pre-dose), Day 7 (AM and PM pre-dose), Day 10 (AM and PM pre-dose), Day 14 (AM and PM pre-dose), Day 21 (AM pre dose), Day 28 (AM pre dose), Day 42 (AM pre-dose and 4-6 h post AM dose)

Population: PK population.

Ctrough is defined as trough plasma concentration (measured concentration at the end of a dosing interval at steady state \[taken directly before next administration\]). Concentration was reported at specified time points.

Time frame: Day 4 (AM pre-dose), Day 7 (AM and PM pre-dose), Day 10 (AM and PM pre-dose), Day 14 (AM and PM pre-dose), Day 21 (AM pre dose), Day 28 (AM pre dose), Day 42 (AM pre-dose and 4-6 h post AM dose)

Population: The 'PK population' comprised of participants in the intent to treat population for whom a pharmacokinetic sample was obtained and analyzed.

PK/PD relationships for GSK163090 in participants with MDD data was not collected.

Time frame: Day 4 (AM pre-dose), Day 7 (AM and PM pre-dose), Day 10 (AM and PM pre-dose), Day 14 (AM and PM pre-dose), Day 21 (AM pre dose), Day 28 (AM pre dose), Day 42 (AM pre-dose and 4-6 h post AM dose)

Population: PK population.