Active clinical trials for "Depressive Disorder, Major"

The investigators propose to examine both resting state activity and functional activity during rumination and during self-processing to study the relationship between neural correlates of rumination/self-focus and self-processing in major depression and bipolar disorder.

Differences in pain perception between subjects with and without psychiatric illness may be influenced by the individual experience, and not primarily by the pathology, although the pathological frame may amplify it.The aim of this study is to establish if the characteristics of experimental pain feeling are influenced by the past pain experience, anxiety and emotion, independently from the diagnosis. The pain experience will be evaluated by an inventory of the potentially painful situations that one can come across through the life, to determine the following points : Number of painful events in the past, number of painful points during the last 6 months, number of painful events lasting more than 6 months, sum of pain intensities (graduated with Visual Analogic Scale VAS from 0 to 10), sum of gravity (evaluated from 0 to 5), the category of pain experience qualification (mostly affective, mostly sensorial, or both). Schizophrenic, depressed and control participants will be recruited, and their pain experience throughout life will be put it in relation to experimental pain tests results (pressure application, ischemia induction), anxiety and emotion (Hospital Anxiety and Depression scale HAD), catastrophizing (Pain Catastrophizing Scale PCS), Heart Rate (HR) variation, Blood Pressure (BP) variation.

Complex Dynamic Systems in Mood Disorders is an observational, exploratory study of the relationship between voice samples, heart rate, respiration, movement, galvanic skin conductance, and sleep architecture with mood states in patients with Major Depressive Disorder, Bipolar Disorder, and healthy controls. The overall hypothesis is that nonlinear dynamic analyses will be able to reveal hidden patterns of complexity in each domain of voice, heart rate variability, movement, arousal, and sleep stage data.

The purpose of this retrospective observational study is to evaluate the characteristics of patients receiving Seroquel XR as treatment for their Major Depressive Disorder. The study will also investigate how the medication is used for these patients and if there are any differences in drug utilisation between the included countries. The study is observing patients initiating Seroquel XR during a 9 month period corresponding to 3 to 12 months following the launch of the product in each country for the MDD indication. A drug utilisation questionnaire will be used to collect study data from patients' medical records.

The primary objective of this study is to investigate the biological components of major depression. The investigators are particularity interested in genetic variation and how it contributes to cortisol (because cortisol is higher in severe depression than mild depression or healthy controls) and how it contributes to clinical symptoms, especially suicidal ideation/behavior and psychosis.

This study aims to investigate reward learning across the mood disorder spectrum and to investigate the predictive validity of reward learning for subsequent symptom severity.

This project aims to use sensors to monitor physiological signals, sleep patterns, vocal characteristics, activity, location and phone usage in study patients with depression who are receiving standard treatment (compared with healthy controls).

This study investigates stress-related signaling of glutamate and dopamine within the reward-processing circuit in Major Depressive Disorder (MDD), and whether they can be used to predict depressive symptoms in the future. This will be achieved through various neuroimaging tools (MRS, fMRI, PET), behavioral tasks, and a naturalistic follow-up design.

The purpose of this study is to examine concurrent validity of 8 computerized tests intended for the assessment of cognitive function in participants with Major Depressive Disorder (MDD), relative to 8 corresponding and previously validated examiner-administered cognitive tests.

The purpose of this study was to evaluate the feasibility and compliance with a novel method for assessing mood and cognition in participants with major depressive disorder (MDD).