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Active clinical trials for "Depressive Disorder"

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Melatonin Decreases Eye Pressure in Normotensive Patients

Depressive Disorder

Agomelatine is a melatonin drug used to treat depressive disorder. Agomelatine may also some effects on ocular pressures. In this study, we aimed to demonstrate that melatonin decreases intraocular pressures when given depressive patients.

Completed2 enrollment criteria

Neurocognitive Features of Patients With Treatment-Resistant Depression

Treatment Resistant Depression

There is an urgent need for novel and effective interventions for treatment-resistant depression (TRD). In previous studies, ketamine has been shown to rapidly reduce depressive symptoms; however, the exact mechanisms of action of ketamine remain unknown. There are some preliminary findings to suggest that ketamine may exert its antidepressant effects through promotion of neurogenesis in the dentate gyrus. The aim of this study is to help delineate the neurocognitive effects of ketamine exposure using a behavioral task (specifically, a pattern separation task) and a battery of other well-established cognitive measures. This is an assessment-only study, as we will be recruiting subjects to complete an assessment battery at two time points, before and after receiving ongoing ketamine administrations for at least four weeks.

Completed7 enrollment criteria

Integrating Pharmacogenomic Testing Into a Child Psychiatry Clinic

Obsessive Compulsive DisorderMajor Depressive Disorder1 more

The purpose of this study is to examine the feasibility, acceptability, and utility of pharmacogenomic (PGX) testing (specifically for the cytochrome P450 2D6 and 2C19 genes) prior to initiating treatment with an antidepressant (AD) among children and adolescents in the University of Florida Child Psychiatry clinics.

Completed6 enrollment criteria

PREVENTION OF POSTPARTUM DEPRESSION DEVELOPMENT IN WOMEN WITH VERY HIGH RISK

Postpartum Depression

Postpartum depression is a disease with a prevalence of 10% which has not only deleterious consequences for the mother but also for the baby and can delay the physical, social and cognitive development of the baby. Therefore we consider very important to prevent this disease as from the centers of care for women with a multidisciplinary approach. The aim of this study is to determine whether psychoeducation oriented in problem solving is effective in preventing the development of postpartum depression in women with very high risk. Methodology: screening of 1000 women in 3rd trimester of pregnancy. We expect that 25% have at least one risk factor for postpartum depression (250). Of these women, aproximately a 50% will have a very high risk of developing postpartum depressión and will be included in the study (n = 125). These women will be randomized to two groups: treatment with psychotherapy focused on problem solving (6 sessions: 1 individual session + 5 group sessions) or usual care control group (usual postpartum control). After treatment, women will be evaluated twice, at the end of therapy and at 6 weeks. Survival curves will be used tu assess the time it takes patients to develop major depression in the postpartum.

Unknown status16 enrollment criteria

Effects of ECT on Monoamine Oxidase A in Depression Investigated With PET

Major Depression

This study aims at evaluating the effect of electroconvulsive therapy in treatment-resistant depressed patients on the major serotonin degrading enzyme in the human brain using neuroimaging methods, the monoamine oxidase A. Electroconvulsive therapy is an effective treatment option in severe cases of depression. However, the mechanisms underlying its effect remain uncertain, though variations within the serotonergic neurotransmitter system seem to be crucially involved.

Completed24 enrollment criteria

Internet Program for Workers With Subthreshold Depression

Depression

Depression is one of the most prevalent mental disorders to afflict adults. It seriously impacts role functioning and often takes a recurrent or chronic course. Because most adults who suffer from depression never receive treatment, there is a critical need to develop interventions that can be easily implemented and widely disseminated. Interventions that reduce the performance-impairing symptoms of subclinical depression and prevent the onset of major depression can improve employee well-being, while reducing healthcare costs and improving productivity. This project produced a mobile-web program to activate cognitive behavioral skills in workers with subthreshold depression, reduce depression symptoms, improve functioning in the workplace, and potentially reduce the risk for escalation to full-syndrome depression.

Completed12 enrollment criteria

Clinical Registry of Patients Under Treatment With Atypical Antipsychotics

SchizophreniaMajor Depressive Disorder2 more

Antipsychotic drugs are characterized by blocking dopaminergic D2 receptors. They have been found to be effective and safe for the treatment of schizophrenia, bipolar disorders, depressive episodes associated with bipolar disorder, or psychotic symptoms in the context of Parkinson's disease. Atypical antipsychotics have lower blocking potency on D2 receptors, at the time that interact with serotoninergic, adrenergic and histaminergic receptors, among others. Quetiapine extended-release has the same clinical efficacy as the immediate-release formulation, but reduces the amount of daily doses, possibly contributing to increased treatment adherence. The purpose of this registry is to explore adherence to treatment, the occurrence of adverse drug reactions and the clinical outcomes in a sample of patients under treatment with atypical antipsychotics in several Central American countries. For this study, clinical data will be extracted from the medical records of 1000 patients with schizophrenia, depressive disorders or Parkinson's Disease with hallucinations. Occurrence of adverse drug reactions, namely weight gain, somnolence, extrapyramidal reactions and symptoms of orthostatic hypotension; adherence to treatment; and changes in quality of life and clinical status will be assessed during the first 8 weeks of treatment.

Completed6 enrollment criteria

An Adaptive Treatment Strategy for Adolescent Depression-Continuation

Adolescent Depression

Aim 1: Assess the feasibility and acceptability of the personalized continuation treatment strategy. Aim 2: Estimate variances of primary and secondary outcomes with the continuation treatment. Aim 3: Conduct exploratory hypothesis-generating analyses to inform further development of the personalized continuation treatment strategy to be tested in a subsequent R01 proposal.

Completed3 enrollment criteria

PRJ2215: Assessment of Buproprion Misuse/Abuse 2004-2011

Depressive DisorderMajor

Bupropion hydrochloride was first approved on 30 December 1985 in United States for depression and is currently approved in 80 countries. Bupropion has also subsequently been approved for smoking cessation and for seasonal affective disorder. Cumulative exposure to bupropion is estimated at approximately 97.3 million patient exposures up to 31 December 2012. Bupropion hydrochloride is a weak catecholamine reuptake inhibitor predominantly affecting serotonin, norepinephrine and dopamine. Its mechanism of action and its structural similarities to diethylpropion, amphetamines, and cocaine, bupropion resembles stimulants in many respects, leading to concerns about potential abuse of the product. Abuse potential had been part of the Benefit Risk Management Plan for bupropion up until 2003 and at that point, had no longer been regarded as a potential risk that required additional/further evaluation outside standard pharmacovigilance monitoring. The current European Risk Management Plan also states that standard pharmacovigilance monitoring applies to abuse potential. Monitoring has shown a recent increase in the number of spontaneous reports from the Adverse Event reporting System (AERS) of drug abuse. The bupropion team agreed that although the numbers of abuse reports was small relative to the total number of reports for bupropion in OCEANS, there was sufficient information in AERS to warrant investigation of the potential effect on public health. To investigate the degree of misuse and abuse of bupropion (including non-oral routes of administration) in the United States, the Drug Abuse Warning Network will be used to examine the study period 2004-2011.

Completed2 enrollment criteria

PET Imaging of Brain mGluR1 Receptors Using [18F]FIMX

Anxiety DisorderMajor Depressive Disorder

Objective: Metabotropic glutamate receptors (mGluRs) are G-protein coupled receptors that respond to glutamate by activating proteins inside nerve cells that affect cell metabolism, thereby fine-tuning the signals sent between cells to maintain balance in neuronal activity. mGluR subtype 1 (mGluR1s) are located in several brain regions, including the cerebellum, hippocampus, olfactory bulb, and basal ganglia. mGluR1 activation stimulates phospholipase C, resulting in phosphoinositide hydrolysis and increased intracellular calcium levels. Successful development of a positron emission tomography (PET) ligand to image mGlurR1 would impact clinical management of brain disorders characterized by disruptions in glutamatergic transmission, including anxiety and stress disorders, drug addiction, epilepsy, Huntington s disease, and Parkinson s disease. However, detailed study of mGluR1s has heretofore been hindered by the lack of high affinity and selective ligands for this receptor subtype. The present protocol will evaluate the ability of a new PET ligand, [18F]FIMX, to image and quantify mGluR1 in the brain of healthy human volunteers. This protocol covers four phases: Phase 0: screening whole-body scan; Phase 1: kinetic brain imaging to quantify mGluR1 in brain relative to concurrent measurement of the parent radioligand in arterial plasma; Phase 2: if the tracer is successful in Phase 1, we will estimate radiation-absorbed doses of [18F]FIMX by performing whole body imaging; Phase 3: test-retest analysis of brain binding relative to concurrent measurement of the parent radioligand in arterial plasma. Study Population: Healthy adult female and male volunteers (n=22, ages 18 to 55) will undergo brain or whole-body imaging.. Design: This study will begin with a screening whole-body scan to confirm that the radioactivity has fairly broad distribution in several organs. For absolute quantification of mGluR1, 22 healthy controls will have brain PET imaging using [18F]FIMX and an arterial line. Up to 12 of them will have a test-retest scan. Eight additional subjects will have a whole body PET scan for dosimetry, which does not require an arterial line. <TAB> Outcome Measures To assess absolute quantitation of mGluR1 with [18F]FIMX, we will primarily use two outcome measures: the identifiability and time stability of distribution volume calculated with compartmental modeling. In test-retest study, we will calculate the retest variability. To assess whole-body biodistribution and dosimetry of [18F]FIMX we will use the organ time-activity curves....

Completed12 enrollment criteria
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