
Triple Chronotherapy in Adolescents
Depressive DisorderMajor2 moreStudy Purpose This study is a randomized controlled trial examining the effectiveness of TCT in the acute treatment of depression and suicidality in adolescents compared to usual treatment care, which includes individual and group therapy, and medication adjustments. All potential participants will be identified at admission to the Psychiatric Youth Inpatient Unit of Billings Clinic and invited to participate. The length of participation is 2 months. Study Design The primary research question of this RCT is whether adjunctive TCT in depressed adolescents is more effective in the management of depression symptoms and in reducing suicidal ideation at two months follow-up, than those adolescents who are receiving usual care. A total of three aims are proposed. Hypothesis: Adjunctive TCT is more effective in the management of depression symptoms and in reducing suicidal ideation at two month follow-up than those adolescents who are receiving usual care. The first aim is to track the trajectories of depression symptoms, suicidal ideation, and insomnia severity in participants receiving TCT and in those receiving treatment as usual over 4 days of initial treatment, thereby answering the question of whether adjunctive TCT can effectively reduce the severity of depression, insomnia and suicidal ideation. The second aim is to examine whether TCT is more effective than usual care in sustaining treatment effects to the end of study period (2 months follow-up), therefore answering the question whether the effectiveness of the 4-day intervention of adjunctive TCT arm is sustainable up to the end of a two-month follow-up. Hypothesis: TCT is more effective than usual care in sustaining treatment effects to the end of the study period than usual care. The third aim is to assess the link to the clinical outcomes (change in depression symptoms, suicidal ideation, insomnia severity, and disease-associated quality of life) and patient satisfaction with the treatment. Hypothesis: Clinical outcomes (depression symptoms, suicidal ideation, insomnia, and disease-related quality of life) and patient satisfaction are more effective than usual care alone.

The Self-help Online Against Suicidal Thoughts (SOS) Trial
Suicidal ThoughtsThe objective of the SOS-trial is to examine if an online self-help intervention is effective in reducing suicidal thoughts among people at risk of suicide. The SOS-trial is a randomized, wait-list controlled trial with 1:1 allocation ratio. A total of 438 people with suicidal thoughts will be allocated to the intervention condition (N=219) or the control condition (N=219). The intervention condition consists of a six-week internet-based self-help therapy intervention. The control condition consists of a waiting list assignment for 32 weeks. The primary hypothesis is that the intervention is superior to the control condition in reducing suicidal thoughts at post-test (6 weeks). The SOS-trial is a partial replication of a previously conducted Dutch trial.

Effect of Ketamine vs. Active Placebo on Suicidal Ideation in Depressed Inpatients With Major Depressive...
Major Depressive DisorderBipolar I Disorder3 moreDepression and suicidal ideation/attempt/death are major causes of morbidity and mortality from psychiatric illnesses. In 2009, the World Health Organization listed depression as the leading cause of years lost due to disability worldwide. Suicide is the 9th most common cause of death in Canada with 1.6% of Canadians ultimately dying from suicide (Statistics Canada, 2012) and the 2nd most common cause of death in young people after accidental deaths. This information highlights the importance of finding treatments to prevent suicidal deaths. Ketamine has been shown to provide rapid treatment response for major depressive episodes both in major depressive disorder (MDD) and bipolar disorder (BD), via a single intravenous infusion which persists for at least 72 hours. The purpose of this study is to conduct a pilot trial of IV ketamine + treatment as usual (TAU) vs. midazolam (an active placebo) + TAU to estimate sample size for a full-scale RCT examining these treatments for decreasing suicidal ideation among depressed inpatients with major depressive disorder and bipolar depression. A total of 52 patients will be recruited for this trial. All subjects will be inpatients at Sunnybrook Health Sciences Centre with a diagnosis of either major depressive disorder or bipolar disorder type I or II currently depressed. Suicidal ideation must be present at baseline assessment in order to be included in the study. Thirteen subjects will be randomized to each treatment arm in each treatment stream - that is, 13 will be recruited to ketamine + TAU in the major depressive disorder stream, and 13 will be recruited to the midazolam + TAU in the major depressive stream. Likewise, 26 subjects with bipolar depression will be randomized to these two treatments.

Brief Interventions for Short-Term Suicide Risk Reduction in Military Populations
SuicideSuicidal IdeationThe purpose of the proposed study is to identify the most effective brief interventions for reducing short-term risk for suicide attempts in "real world" military triage settings, and to identify potential mechanisms of change underlying the interventions' impact on subsequent suicide attempts. We will randomize 360 patients to one of three commonly-used crisis interventions delivered as routine care in the mental health triage system: (1) Treatment As Usual (TAU); (2) Standard Crisis Response Plan (S-CRP); or (3) Enhanced Crisis Response Plan with Reasons For Living (E-CRP). The following hypotheses will be tested: The enhanced crisis response plan (E-CRP) intervention will contribute to significantly decreased risk for suicide attempts and hospitalization during follow-up relative to the standard crisis response plan alone (S-CRP) and treatment as usual (TAU). The standard crisis response plan (S-CRP) intervention will contribute to significantly decreased risk for suicide attempts and hospitalization during follow-up relative to treatment as usual (TAU). Greater ambivalence about suicide and faster recall of reasons for living will mediate the relationship between intervention and reduced risk for suicide attempt during follow-up.

Effects of Ketamine in the Acute Phase of Suicidal Ideation
Suicidal IdeationThe primary objective of this study is to assess the efficacy of ketamine versus a placebo for the short-term (at 72h, i.e. 24h after the last perfusion) relief of suicidal ideation, measured using the BSS hetero questionnaire, in patients hospitalized for suicide risk.

Ketamine For Suicidal Ideation
Suicidal IdeationThis study will examine the effects of Intravenous (IV) ketamine both in an outpatient population and with subjects on the inpatient unit with suicidal ideation (SI).

Motivational Interviewing to Prevent Suicide in High Risk Veterans
Suicidal IdeationTreatment EngagementThe purpose of study is to test the efficacy of an adaptation of Motivational Interviewing to Address Suicidal Ideation (MI-SI) on the severity of suicidal ideation in psychiatrically hospitalized Veterans at high risk for suicide.

Mentalization-Based Therapy to Prevent Suicidal Behavior in Adolescents With Bipolar Disorder
Bipolar DisorderSuicidal IdeationChildren and adolescents with early-onset bipolar disorder (BD) are at high risk for intentionally hurting themselves. Although there are therapies in existence for these youths with BD, they do not address suicide prevention specifically. Mentalization-based therapy for adolescents (MBT-A) has been shown to be helpful in reducing self-harm in the adolescent and adult population with borderline personality disorder. The investigators will modify the MBT-A treatment procedures for persons with BD who have had a recent period of suicidal ideation or behavior.

Controlled Evaluation of a Computerized Anger-reduction Treatment for Suicide Prevention
AngerSuicidal IdeationThe purpose of this study is to determine whether a computerized intervention designed to reduce anger-provoking interpretation biases will reduce suicide risk among individuals with elevated levels of trait anger.

A Randomized, Double-Blind, Placebo-Controlled, Sequential Parallel Study of CERC-301 in the Adjunctive...
Major Depressive DisorderThe current study will evaluate the antidepressant effect of CERC-301 during 28 days of treatment in subjects with MDD who are currently experiencing a severe depressive episode despite stable ongoing treatment with selective serotonin- or serotonin-norepinephrine reuptake inhibitors (SSRI or SNRI). The study population will be enriched for subjects that would benefit most from rapid onset, those with recent active suicidal ideation, but not a risk to themselves or others and are deemed appropriate for an out-patient study with careful safety surveillance. This will allow the study to focus on the antidepressant effects of CERC-301 but also explore effects on suicidal ideation. To explore rapid onset, the primary endpoint will be at 7 days, but effects over the 28 days of treatment will be examined as a secondary endpoint.