This study is open to adults with depression (major depressive disorder) for whom standard treatment with antidepressants alone does not work sufficiently. The purpose of the trial is to find out whether a medicine called BI 1358894 helps to improve symptoms of depression. Four different doses of BI 1358894 are tested in the study. Participants continue their standard antidepressant therapy throughout the study. Participants are put into 6 groups by chance. Participants in 4 of the 6 groups take different doses of BI 1358894, and placebo. Participants in the fifth group take quetiapine, a medicine already used to treat depression, and placebo. Participants in the sixth group take placebo only. Participants take BI 1358894, quetiapine, or placebo as tablets. Placebo tablets look like BI 1358894 or quetiapine tablets but do not contain any medicine. Each participant takes tablets twice a day. Participants are in the study for about 3 months. During this time, they visit the study site about 8 times and get about 2 phone calls. At the visits, doctors ask participants about their symptoms. The results between the BI 1358894 groups, the quetiapine group, and the placebo group are then compared. The doctors also regularly check the general health of the participants.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
389
University of Alabama at Birmingham
Birmingham, Alabama, United States
Collaborative Neuroscience Network, LLC (CNS)
Garden Grove, California, United States
Alliance Research
Long Beach, California, United States
Asclepes Research Centers
Sherman Oaks, California, United States
California Neuroscience Research
Sherman Oaks, California, United States
Change From Baseline in Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score at Week 6
Change from baseline in MADRS total score at Week 6 is reported. The MADRS evaluates core symptoms of depression and consists of 10 items. Nine of them are based upon participant reports, and one is on the rater's observation (apparent sadness) during the rating interview. MADRS items are rated on a 0-6 continuum (0=no abnormality, 6=severe). The possible total score could range from 0 (normal with absence of symptoms) to 60 (severe depression). Least squares mean and adjusted standard error were estimated by Restricted Maximum Likelihood (REML)-based Mixed effects model for repeated measures (MMRM) including the fixed categorical effects of treatment, concomitant psychotherapy use (yes vs. no), and the fixed continuous effect of baseline MADRS total score. Visit was treated as a repeated measure with an unstructured covariance matrix. The Kenward-Roger approximation was used to estimate the denominator degrees of freedom and adjust standard errors.
Time frame: MMRM included measurements from baseline (Week 0) and at Weeks 1, 2, 4 and 6 after first drug administration. MMRM estimates of change from baseline to Week 6 is reported.
Number of Participants With Response Defined as ≥ 50% Montgomery-Åsberg Depression Rating Scale (MADRS) Reduction From Baseline at Week 6
Number of participants with response defined as ≥ 50% MADRS reduction from baseline at Week 6 is reported. Percent reduction from baseline was calculated as follows: \[(MADRS total score at baseline - MADRS total score at week 6)/ MADRS total score at baseline\] \*100.
Time frame: Prior to the first intake of the trial medication (week 0, baseline) and after 6 weeks of treatment.
Change From Baseline in State-Trait Anxiety Inventory (STAI) State and Trait Version Scores at Week 6
Change from baseline in STAI State and Trait version scores at Week 6 is reported. The STAI comprises separate self-report scales for measuring state and trait anxiety. Both consist of 20 statements. The S-Anxiety scale evaluates how respondents feel "right now, at this moment." The T-Anxiety scale assesses how people generally feel. Each STAI item is given a weighted score of 1 to 4. Scores for both scales can vary from 20 (minimum) to 80 (maximum). Higher scores indicate greater anxiety. Least squares mean and adjusted standard error were estimated by REML-based MMRM including the fixed categorical effects of treatment, concomitant psychotherapy use (yes vs. no), and the fixed continuous effect of baseline score. Visit was treated as a repeated measure with an unstructured covariance matrix. The Kenward-Roger approximation was used to estimate the denominator degrees of freedom and adjust standard errors.
Time frame: MMRM included measurements from baseline (Week 0) and at Weeks 1, 2, 4 and 6 after first drug administration. MMRM estimates of change from baseline to Week 6 is reported.
Change From Baseline in Clinical Global Impression Severity Scale (CGI-S) Score at Week 6
Change from baseline in CGI-S score at Week 6 is reported. The CGI-S rating scale evaluates the severity of psychopathology on a scale of 1 to 7. Considering total clinical experience with the depression population, a participant is assessed on severity of illness at the time of rating according to: 1=normal (not at all ill); 2=borderline ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill; 7=among the most extremely ill participants. Least squares mean and adjusted standard error were estimated by REML-based MMRM including the fixed categorical effects of treatment, concomitant psychotherapy use (yes vs. no), and the fixed continuous effect of the baseline score. Visit was treated as a repeated measure with an unstructured covariance matrix. The Kenward-Roger approximation was used to estimate the denominator degrees of freedom and adjust standard errors.
Time frame: MMRM included measurements from baseline (Week 0) and at Weeks 1, 2, 4 and 6 after first drug administration. MMRM estimates of change from baseline to Week 6 is reported.
Change From Baseline in Symptoms of Major Depressive Disorder Scale (SMDDS) Total Score at Week 6
Change from baseline in SMDDS total score at Week 6 is reported. The SMDDS is a 16-item, patient-reported outcome measure developed to capture the core symptoms of MDD. The SMDDS uses a recall of "over the past 7 days" and participants respond to each question using a rating scale between 0 ("Not at all" or "Never") to 4 ("Extremely" or "Always"). The total score ranges from 0 to 60 with a higher score indicating more severe depressive symptomatology. Least squares mean and adjusted standard error were estimated by REML-based MMRM including the fixed categorical effects of treatment, concomitant psychotherapy use (yes vs. no), and the fixed continuous effect of the baseline score. Visit was treated as a repeated measure with an unstructured covariance matrix. The Kenward-Roger approximation was used to estimate the denominator degrees of freedom and adjust standard errors.
Time frame: MMRM included measurements from baseline (Week 0) and at Weeks 1, 2, 4 and 6 after first drug administration. MMRM estimates of change from baseline to Week 6 is reported.
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Schuster Medical Research Institute
Sherman Oaks, California, United States
Viking Clinical Research, Ltd.
Temecula, California, United States
Collaborative Neuroscience Research, LLC
Torrance, California, United States
Mountain Mind. LLC
Denver, Colorado, United States
CT Clinical Research
Cromwell, Connecticut, United States
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