View clinical trials related to Major Depressive Disorder.
Filter by:The purpose of this study is to evaluate the safety and tolerability of escalating single oral doses of LY03005 in healthy subjects and to characterize the pharmacokinetics (PK) of escalating single oral doses of LY03005.
Perinatal depression is a common and serious mood disorder that increases morbidity and mortality in new mothers and results in poor infant/child outcomes. Current therapies often fail to produce recovery or are poorly tolerated and many pregnant women seek non-pharmacologic therapy or forgo treatment when non-pharmacologic options are not available. Expectant and new mothers who suffer from circadian rhythm disruption are at risk for perinatal depression. This R34 Pilot Effectiveness Studies and Services Research Grant seeks to test whether an Integrated Chronotherapy (IC) intervention can be implemented in an outpatient psychiatry setting to improve treatment outcomes for patients with perinatal depression. IC is a multicomponent treatment consisting of bright light therapy, sleep phase advance, and sleep stabilization/restriction that targets the Research Domain Criteria (RDoC) constructs of circadian rhythms, sleep-wake behavior, social rhythms, and arousal. We will assess the feasibility, safety, and acceptability of an IC intervention for perinatal depressin by testing the treatment in expectant mothers diagnosed with major depressive disorder during 3rd trimester of pregnancy. We will randomize patients to either: (a) usual care (UC, n = 20) or (b) IC+UC (n = 20). IC+UC will have pregnancy and postpartum components and will be administered via an individualized case formulation approach tailored to each patient. After a baseline assessment, IC will be prescribed during 5 dedicated clinical visits: three during 3rd trimester of pregnancy and 2 in the postpartum period. UC will consist of medication administered by a perinatal psychiatrist and/or psychotherapy. UC will be quantified in both groups to evaluate differences between the IC+UC and UC groups. Mood will be measured in both groups by blinded clinician interview and patient self-report. We will assess the safety profile of the IC intervention with evaluation of side effects/adverse events. Importantly, the study will also examine the putative mechanisms by which IC is hypothesized to work and the "dose" of IC received by patients in the IC+UC group. All participants will wear wrist actigraphy/light monitors continuously during weeks 28-40 of pregnancy and postpartum weeks 2-6 to assess light exposure and sleep duration and timing. Circadian phase (measured with salivary dim light melatonin onset) will be measured at baseline during pregnancy (~30 weeks gestation), at 36 weeks gestation, and at postpartum week 6. This pilot will allow us to refine the IC intervention for future integration into various clinical settings and establish an infrastructue for a larger (R01-scale) trial, including measuring acceptability of IC among UC clinicians and implementing web-based data collection to facilitate data sharing in the planned R01. Perinatal IC could have major public health impact due to the high prevalence of perinatal depression and its negative effects on mothers and their children. This project represents a first step toward achieving this goal, as it will provide the pilot data necessary to prepare for a larger scale intervention study focused on providing non-pharmacologic therapies and improving outcomes for women with perinatal depression.
Predictive factors and biomarkers of response to antidepressants in major depressive disorder are scarce. Beta-arrestins are proteins which inhibit G Protein Coupled Receptors and desensitize serotonergic and dopaminergic receptors. The study hypothesis is that Beta-arrestins 1 and 2 are predictive factors and biomarkers of response to antidepressants in major depressive disorder. In a controlled prospective open naturalistic monocentric 3-month study, 60 patients with a major depressive disorder requiring a treatment with venlafaxine will be included and assessed before treatment, 1 month and 3 months post-treatment. 20 controlled healthy subjects matched for age and gender will also be assessed. The Beta-arrestin pathway will be assessed using genetic polymorphisms, Peripheral Blood Mononuclear Cell measures and functional pathway. Antidepressant response will be assessed using depression scales, olfaction and memory as surrogate markers of neurogenesis.
1. Investigate the safety and effectiveness of a single dose of IV Ketamine for adolescents with suicidal ideation and depression. It is hypothesize that Ketamine will be well tolerated and significantly reduce depressive symptoms and suicidal ideation. 2. Explore whether decision making as measured by the Iowa Gambling Task changes before and after Ketamine infusion. It is hypothesize that IV Ketamine infusion will significantly improve the decision making ability a measured by the Iowa Gambling Task in adolescents that are suicidal.
To evaluate the efficacy and the safety of ASC-01 (aripiprazole/sertraline combination) compared to sertraline monotherapy in patients with major depressive disorders who have responded incompletely to sertraline monotherapy.
We propose a clinical study of medial forebrain bundle DBS as a treatment in 20 patients with treatment refractory depression (TRD). Data from the University of Bonn indicates that surgical lesions of the medical forebrain bundle can produce therapeutic benefits in patients with depressive disorders, and suggest that DBS at the same site may also reduce symptomatology in these TRD patients (Schaepfer, 2013). Depression affects up to 10% of the US population and of those at least 10-15% do not benefit from therapies hence why we must explore new treatments. The Percept™ PC system manufactured by Medtronic Neurological will be used in this study. Study subjects will be between the ages of 22 and 70 years of age and suffer from TRD, have failed multiple treatment regimens, including ECT, and remain symptomatic. Those identified as TRD patients will then be enrolled in a clinical pilot study investigating DBS, targeting the MFB.
Suicide attempts are a serious concern worldwide. Currently, existing drugs take about three weeks to show effect on suicidal thoughts and drives. Recent evidence suggests that intravenous Ketamine exerts a rapid effect in suicidal patients, even after a single injection. We aim to examine whether oral Ketamine is a safe and effective treatment in suicidal patients. Following a suicide attempt, patients will be randomized into a group that will be given Ketamine for 21 days and one that will receive placebo, and assessed using questionnaires and brain scans. We expect early improvements in suicide scales in the Ketamine group. As a secondary goal, this study will use IV ketamine in order to access the extent to which the experience of the embodied self mediate different levels of "embodied emotion". A better understanding of these relations will assist in unveiling the cognitive mechanism underlying the therapeutic effect of ketamine
This study aims to determine whether ventral striatal dopamine release is a mechanism of reward motivation in major depression, whether dopamine release is low in depression, and whether DA release and reward motivation predict response to dopamine-targeted treatment with pramipexole.
The purpose of this study is to investigate the use of repetitive transcranial magnetic stimulation (rTMS) in helping to prevent relapse in major depressive disorder. rTMS is known to be an effective treatment for major depressive disorder, but there is also evidence that it may be effective in the maintenance of remission following treatment. However, it is not yet clear what maintenance strategy will yield the best outcome in preventing relapse. In this study, eligible patients who have finished one full course of rTMS for treatment of major depression will be randomized into three groups: (i) cluster rTMS, (ii) taper rTMS, and (iii) treatment as usual. The 'cluster rTMS' group will receive two weeks to daily rTMS six months after the completion of their regular rTMS treatment, the 'taper rTMS' group will receive three sessions a week for two weeks followed by two sessions a week for two weeks immediately following their regular rTMS treatment, while the 'treatment as usual' group will receive standard follow-up care from their own psychiatrist and/or primary care doctor. The investigators hypothesize that the group with cluster treatment will show significantly lower relapse rates in depressive symptoms as compared to the other groups.
The purpose of this study is to determine whether vilazodone is more effective than citalopram for the treatment of anxious depression. We will use neuroimaging to see whether there are changes in the brains of patients receiving the drug vilazodone that are different from those of citalopram. These changes may show that vilazodone affects the brain differently than most other kinds of standard antidepressant medications.