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Original Research

A randomized, double-blind study of the efficacy and tolerability of extended-release quetiapine fumarate (quetiapine XR) monotherapy in patients with major depressive disorder

, , , &
Pages 201-216 | Published online: 30 Jan 2014

Figures & data

Figure 1 Patient disposition.

Notes: aPatients who failed to meet the criterion of adequate response (≥20% reduction in MADRS total score after 2 weeks of treatment) were up-titrated to double the initial randomized dose for the remaining 6 weeks of randomized treatment.
Abbreviations: MADRS, Montgomery–Åsberg Depression Rating Scale; MDD, major depressive disorder.
Figure 1 Patient disposition.

Table 1 Demographic and baseline clinical characteristics (MITT population)

Figure 2 (A and B) Change from randomization to week eight in MADRS total score. (A) LOCF approach; (B) MMRM analysis of observed-case data (MITT population).

Notes: *P<0.05; **P<0.01; ***P<0.001 versus placebo.
Abbreviations: LOCF, last observation carried forward; LSM, least-squares mean; MADRS, Montgomery–Åsberg Depression Rating Scale; MITT, modified intent-to-treat; MMRM, mixed-model repeated measures.
Figure 2 (A and B) Change from randomization to week eight in MADRS total score. (A) LOCF approach; (B) MMRM analysis of observed-case data (MITT population).

Figure 3 Change in MADRS total score over time in patients with an adequate and inadequate responsea,b at week two (LOCF; MITT population).

Notes: aInadequate response defined as <20% reduction in MADRS total score from randomization to week two; bpatients with an inadequate response at week two had their dose doubled (quetiapine XR 300 mg/day; escitalopram 20 mg/day).
Abbreviations: LOCF, last observation carried forward; MADRS, Montgomery–Åsberg Depression Rating Scale; MITT, modified intent-to-treat.
Figure 3 Change in MADRS total score over time in patients with an adequate and inadequate responsea,b at week two (LOCF; MITT population).

Figure 4 Change in individual MADRS item scores from randomization to week 8 (MITT population; LOCF).

Note: ***P<0.001 versus placebo.
Abbreviations: LOCF, last observation carried forward; LSM, least-squares means; MADRS, Montgomery–Åsberg Depression Rating Scale; MITT, modified intent-to-treat.
Figure 4 Change in individual MADRS item scores from randomization to week 8 (MITT population; LOCF).

Table 2 Change from randomization at week one and at week eight in secondary efficacy variables (MITT population, LOCF unless otherwise stated) and TDSS total scores over time during the drug discontinuation/tapering follow-up phase (TDSS population; OC)

Table 3 LSM change in MADRS total score from randomization to week eight by age, sex, ethnicity, disease severity, and continent, and MADRS response rates by continent (LOCF; MITT population)Table Footnotea

Table 4 Most frequently reported AEs (occurring at an incidence of >5% in any group) and AEs of special interest (safety population)

Table 5 Changes in clinical laboratory parameters and body weight and proportion of patients with clinically relevant shifts (defined within the table) from randomization to end of treatment (safety population; LOCF)