Active clinical trials for "Depressive Disorder"

The purpose of this randomized, placebo-controlled study is to investigate pharmacodynamic differences between racemic ketamine and esketamine using functional fluorodeoxyglucose ([18F]FDG) positron emission tomography/magnetic resonance imaging (PET/MR)

The objective of this transversal study is to determine if there is a difference in the volume of the hippocampus with the degree of anxiety.

Chinese Medicine syndrome differentiation has been a prevalent therapy in China for thousands of years. It is based on patients' symptoms, pulse, tongue and coating on the tongue. Therefore, the syndrome of patients and corresponding Traditional Chinese Medicine (TCM) may vary. This multicenter prospective cohort studies the efficiency and safety of TCM compared with antidepressants. A total number of 4600 cases with primary depression are expected to be collected and divided into 3 cohorts based on the patients' requirement and choices. Patients in one group will receive TCM, and patients in the other two groups will respectively receive antidepressants only and integrated treatment of TCM and antidepressants. This study has 2 phases: treating period and the follow-up. The main purpose of this long-term study is to evaluate the efficiency of TCM compared with antidepressants in reducing relapse and suicide rate, changing lifestyle, improving patient compliance as well as the safety.

The study aims to characterize the rhythmic parameters of unipolar depressed patients that are associated with the response to antidepressants after 6 weeks of treatment.

Analysis of recent studies show that researchers find it hard to distinguish between Late Onset Depression, a first diagnosed major depressive episode which occurs at old age, and Early Onset Depression, a depressive episode at old age with a history of previous episodes. Since current data, about the phenomenology and etiology of Late Onset Depression, lake conicity it is unclear whether this phenomena should be considered as a distinct subtype of depression. Nevertheless, the wide spread assumption is that Late Onset Depression has a stronger correlation with brain damage and environmental risk factors such as the common losses at old age and weaker correlation with family history and genetics when compared to Early Onset. Although many researchers consider brain damage to have the main contribution to the emerge of Late Onset Depression, the fact that depression has a negative effect on one's health supports the claim that it might be the result and not the rick factor. Since Late Onset Depression correlates with the common losses at old age, the investigators propose that an existential approach that deals with one's meaning, freedom, responsibly and death, might be more appropriate. Thus, the investigators ask how do older adults experience depression which they face for the first time in old age? Current study will seek to understand older adults' experience of Late Onset depression through existential paradigm by using a semi constructed interview.

All subjects completing the randomized treatment period in Protocol NS2014-1 will discontinue study drug and be asked to provide consent to be followed in this 6-month study, at their final safety visit. The study will consist of an enrollment visit, followed by bi-monthly in-clinic visits with monthly telephone visits between in-clinic visits.

The objective of this study is to identification of genetic markers and predictors of antidepressant-induced suicidality in youth depression. Participants who take the standardized pharmacotherapy (bupropion or lamotrigine) for depression will be observed for 8 weeks. They will do several scales and genetic tests at visit 1 (week 0), visit 3 (week 4) and visit 4 (week 8)

Predictors of response to pharmacological treatment of major depressive disorder will be investigated. One hundred and twenty patients will be included in a naturalistic clinical trial. Psychopathology, personality traits, cognitive performance, brain structural changes and genetic polymorphisms will be evaluated. Patients will be followed for 18 months with a pharmacological treatment algorithm and will be evaluated monthly until 6th month and every 3 months, up to 18 months. Psychoeducation will be offered to patients who did not remit until 3 months of pharmacological tretment.

To examine differences in neurophysiologic parameters between unmedicated patients with bipolar depression and healthy controls To examine within-subject changes in neurophysiologic parameters in patients with bipolar depression treated with quetiapine

The purpose of this study is to determine how psychotherapy and pharmacotherapy respectively change brain activity in patients suffering from chronic depression.