View clinical trials related to Major Depressive Disorder.
Filter by:Ketamine has been shown to have an antidepressant effect when given intravenously in doses of 2mg/kg. Ketamine is used as a standard induction drug during general anesthesia. It is known in this instance to decrease postoperative pain. No one has studied whether or not ketamine when given in doses used during general anesthesia (0.5mg/kg intravenous) has an antidepressant effect on surgical patients who suffer from depression. The study is designed to determine whether or not a small dose of ketamine when given at the induction of anesthesia could have an antidepressant effect on surgical patients with depression.
The aim of this project is to evaluate the efficacy of the influenza vaccine in individuals with major depressive disorder (MDD) as well as to elucidate the nature of the immunological abnormalities in MDD using a quasi-experimental design. Specifically, the investigators plan to induce transient, mild inflammation in medically-healthy study participants using the influenza vaccine. Initially the investigators will conduct a pilot project with up to 20 individuals in order to evaluate the time-point at which the peak inflammatory response to the vaccine occurs. Subjects will receive the seasonal influenza vaccine and provide blood samples 4 hours, 2 days, and 30 days post vaccination. Subsequent to the pilot study, both depressed and psychiatrically-healthy participants will be randomized in a parallel group, double-blind design so that they receive either influenza vaccine (seasonal vaccine) or saline (i.m). At baseline, subjects will provide a blood sample, complete a number of rating scales to measure mood and fatigue, and may complete approximately one hour of MRI scanning with or without simultaneous EEG recording. Two-days post vaccination, they will provide a second blood sample, complete more clinical ratings and may complete another identical MRI session with or without simultaneous EEG. Four weeks later, participants will be asked to return to provide a third blood sample and complete additional clinical ratings. The blood samples will be used to measure both innate and adaptive immune function and may be used to correlate the vaccine-induced immunological changes to neurophysiological changes in the brain measured by MRI and/or EEG.
The purpose of this study is to use positron emission tomography (PET) imaging to measure the activity of the kappa opioid receptor (KOR) in the brains of depressed and non-depressed individuals.
Examine the safety of long term repeat exposure to GLYX-13 in subjects who participated in GLYX13-C-202.
Chronotherapy is a term that describes therapeutic alterations of sleep wake cycles. Different variations of sleep deprivation, set sleep wake schedules, and types of light therapy have demonstrated efficacy in rapidly treating depression, and suicidal thinking. This study seeks to explore the effect of two different chronotherapuetic protocols on acutely depressed and suicidal inpatients admitted to the Medical University of South Carolina
The purpose of this study is to explore whether electroconvulsive therapy (ECT) accidentally leads to a side effect of brain inflammation. Patients with treatment resistant depression who are planning to take ECT will be subsequently approached to participate in the study.
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.
According to the 2005 National Comorbidity Survey-Replication study, approximately 20.9 million American adults, or 9.5 percent of the population over the age of 18 suffer from mood disorders including major depressive disorder, chronic, mild depression and bipolar disorder. Major depressive disorder (MDD) is predicted to be the second leading cause of disability worldwide by the year 2020; sub-clinical mood disturbances impact many additional people and are a major reason people seek psychotherapy services. The economic burden of depression in the United States is significant: $83.1 billion in 2000 and increasing. Much of this burden comes from the high rate of sub-optimal treatment outcomes associated with the disorder. Indeed, only 50% of MDD patients recover in less than 12 weeks with adequate treatment, and up to 20% of patients will fail to adequately respond to all currently available interventions. Moreover, current treatments come at the cost of significant central nervous system (CNS) side effects, further highlighting the need for more effective treatments with fewer side effects. To address these pressing clinical issues, the investigators will conduct a placebo controlled, clinical trial to determine if Whole Body Hyperthermia (WBH) enhances the effects of psychotherapy compared to psychotherapy alone in medically healthy patients with moderate to severe mood disorders. The investigators plan to recruit a sample of 24 medically healthy individuals with mood problems who will be randomized to examine whether WBH enhances the effects of psychotherapy. To determine acute and sustained effects of WBH +psychotherapy on mood disorders, the study will include basic psychiatric questionnaire-based assessments at three therapy sessions prior to a single session conducted while receiving one of two intensities of WBH treatment. Subjects who elect not to conduct a therapy session in the WBH chamber will still be able to complete study questionnaires at all therapy sessions. This study challenges the existing paradigm by determining if peripheral afferent sensory pathways can be accessed to enhance the treatment of mood disorders and thus avoid problems of exposing all of the brain to non-selective drugs.
Depression and bipolar disorder are major public health concerns for adolescents today. Teenage depression and bipolar disorder are associated with social isolation, family stress, school failure, substance abuse and suicide. Screening for depression and bipolar disorder so that treatment can be started early in the course of illness is an urgent public health priority. Many teens with bipolar disorder are incorrectly diagnosed as having unipolar depression. It is critical that adolescents receive proper screening and assessment that leads to an accurate diagnosis and treatment. An efficient, cost-effective, blood-based screening program could be performed on an annual or semi-annual basis to potentially detect depression and then differentiate between unipolar and bipolar depression. If this type of screening were able to detect a significant percentage of teens with depression or bipolar disorder, the positive impact on U.S. public health would be substantial. The purpose of this study is to conduct a pilot study to assess the probability of detecting adolescent unipolar and bipolar depression through blood samples.
To evaluate the long-term safety and tolerability of brexpiprazole as adjunctive treatment in patients with Major Depressive Disorder (MDD)