Trial Outcomes & Findings for Study Comparing the Tolerability of Seroquel IR With Seroquel XR in Patients With Bipolar Depression (NCT NCT00926393)

A 7-day, inpatient, multicenter, double-blind, double-dummy, randomized, parallel group, Phase IV study was done to compare the tolerability of quetiapine IR with quetiapine XR during initial dose escalation in patients with bipolar depression. In total 139 patients were randomized in 15 centers in the USA between June and August 2009.

Patients must have DSM-IV-TR documented bipolar I or bipolar II, most recent episode depressed, and outpatient status at enrollment . Patients must not have another current, major disorder that is symptomatic or has required treatment within 6 months of enrollment.

Study Comparing the Tolerability of Seroquel IR With Seroquel XR in Patients With Bipolar Depression

The Modified Bond-Lader Visual Analog Scale (VAS) uses a 100 mm line, each with a set of opposing adjectives at either end:Alert (=0) - Drowsy (=100); If patient is sleeping the Bond-Lader VAS will be assign a score of 100.

The Modified Bond-Lader Visual Analog Scale (VAS) uses a 100 mm line, each with a set of opposing adjectives at either end:Alert (=0) - Drowsy (=100); If patient is sleeping the Bond-Lader VAS will be assign a score of 100.

The Modified Bond-Lader Visual Analog Scale (VAS) uses a 100 mm line, each with a set of opposing adjectives at either end:Alert (=0) - Drowsy (=100); If patient is sleeping the Bond-Lader VAS will be assign a score of 100.

The Modified Bond-Lader Visual Analog Scale (VAS) uses a 100 mm line, each with a set of opposing adjectives at either end:Alert (=0) - Drowsy (=100); If patient is sleeping the Bond-Lader VAS will be assign a score of 100.

The Modified Bond-Lader Visual Analog Scale (VAS) uses a 100 mm line, each with a set of opposing adjectives at either end:Alert (=0) - Drowsy (=100); If patient is sleeping the Bond-Lader VAS will be assign a score of 100.

The Maximum Intensity Modified Bond-Lader VAS after dose (MaxIntVAS) is calculated as maximum possible value of VAS during that day at any from 1, 2, 3, 4, 5, 12, 13, 14 hours post-dose assessments

Time (Tmax) to Maximum Intensity Modified Bond-Lader VAS after dose is corresponding assessment time (one from 1, 2, 3, 4, 5, 12, 13, 14 hours post-dose) of MaxIntVas

Area under the Modified Bond-Lader VAS-time curve is calculated by the linear trapezoidal formula which equals sum of (Ck+Ck+1)/2 multiplied by the time interval between k and k+1 observations, where Ck and Ck+1 are the corresponding the intensity of sedation evaluations measured by the Modified Bond-Lader VAS from 1 to 14 hours post-dose

SAS total score is the sum of the 10 individual-item scores (range:0-40), with the score for each item ranging from 0 to 4, higher scores indicate greater severity of Parkinsonian symptoms. Change : total score at day 7 minus total score at randomization. Increase in Change of total score indicates an increase in extrapyramidal motor symptoms.

BARS global score is the 4th individual-item score on the BARS scale,the Global Assessment of Akathisia, with the score ranging from 0 to 5. Change : score at day 7 minus score at randomization. Increase in Change of BARS global score indicates an increase in akathisia.

AIMS total score is the sum of the 10 individual-item scores (range:0-40), with the score for each item ranging from 0 to 4. Change : total score at day 7 minus total score at randomization. Increase in Change of total score indicates an increase in abnormal voluntary movements.

Number of patients with adverse events potentially associated with EPS collected by MedDRA Preferred Terms as akathisia, extrapyramidal disorder, restlessness

Number of patients with adverse events potentially associated with somnolence collected by MedDRA Preferred Terms as lethargy, sedation, somnolence