Active clinical trials for "Depressive Disorder, Major"

The aim of our study was to test whether the combined administration of the SSRI fluoxetine and metformin, a drug improving metabolic profile and therefore potentially able to mimic the influence of supportive living conditions on treatment outcome, results in an improved antidepressant efficacy compared with fluoxetine alone.

The purpose of this study is to determine the effect of LY2216684 on heart rate and blood pressure in research participants with MDD who are being treated with an SSRI (selective serotonin reuptake inhibitors). Information about any side effects that may occur will also be collected. The duration of participation in this study is approximately 24 days not including the screening visit. This study requires 1 clinic confinement of 17 days/16 nights and 1 Follow-up Outpatient Visit. A screening visit is required within 30 days prior to the start of the study. In both periods 1 and 2, the study involves 4 single daily doses of 18 mg LY2216684 or placebo taken as 2 tablets by mouth. In period 3, the study involves four single daily doses of 36 mg LY2216684 or placebo taken as 4 tablets by mouth.

The purpose of this study is to determine whether RX-10100 are effective in the treatment of Major Depressive Disorder (MDD).

To compare the effect of OPC-34712 (brexpiprazole) to the effect of placebo (an inactive substance) as add on treatment to an assigned FDA approved antidepressant treatment (ADT) in patients with Major Depressive Disorder who demonstrate an incomplete response to a prospective trial of the same assigned FDA approved ADT

The first part is a double-blind placebo-controlled trial to identify the effects of omega-3 polyunsaturated fatty acids (PUFAs) monotherapy in depression. The second part is a double-blind trial to identify the effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on different symptom clusters in patients with depression.

Primarily, this study seeks to evaluate whether citalopram treatment is associated with an increase in the Glutamine (Gln)/Glutamate (Glu) ratio in the anterior cingulate cortex (ACC) from baseline to day 3 of treatment. Additionally, this study would like to examine whether citalopram treatment is associated with an increase in the Gln/Glu ratio in the ACC from baseline to day 7 of treatment. In order to more fully examine baseline neurochemical and functional abnormalities in participants with MDD, we also seek to scan a group of age- and sex-matched non-depressed comparison individuals in order to perform between-group analyses of baseline neuroimaging measures.

Depressed patients will be offered experimental treatment with a new, potentially fast-acting antidepressant called ketamine while being scanned by magnetic resonance imaging (MRI) to measure the chemical effect of the drug. Ketamine will be given in a dose of 0.0 (placebo), 0.1, 0.2, 0.3, 0.4, or 0.5 mg/kg. If a patient does not respond to ketamine after the first infusion, it may be because s/he received ketamine placebo or the dose of ketamine was too low. In that case, an optional second scan and infusion of active ketamine (0.5 mg/kg) will be offered. This second scan will occur no later than weeks after the first scan/infusion (as scheduling permits). There is no guarantee that the patient will respond to the second ketamine infusion. Patients enrolled in the study are eligible for up to 6 months treatment with their study psychiatrist after the ketamine infusion(s). Healthy Volunteers: Healthy controls will receive an infusion of ketamine at a single dose (0.5 mg/kg). Volunteers will only receive one MRI scan and infusion.

This is a phase 3, multi-center, randomized, double-blind, placebo-controlled, parallel group study to evaluate the efficacy and safety of venlafaxine ER 75 mg/day (fixed dose) and venlafaxine ER 75 mg/day to 225 mg/day (flexible dose), compared to placebo. This study consists of 2 week screening phase, 8 week treatment phase and 2 week tapering phase. The follow-up visit will be evaluated after 2 weeks of last study medication dosing.

The study aims to evaluate effectiveness and tolerability of aripiprazole augmentation in outpatients with major depressive disorder who have had inadequate response to antidepressants in Taiwan clinical practice.

The acute phase of this study will monitor the response to a combination of an atypical antipsychotic medication olanzapine with an antidepressant medication sertraline in the acute treatment of the disorder. It is predicted that this combination will improve symptoms of psychotic depression and be associated metabolic side effects. Factors that moderate tolerability will be monitored. Improvement in symptoms could take between 4 and 12 weeks, followed by a period of 8 weeks during which participants will continue to take the same medications to stabilize the remission from symptoms of psychotic depression. The maintenance phase will be a randomized, double-blind, placebo-controlled study of olanzapine for a period of up to 36 weeks to test whether continuing this combination decreases the risk of relapse and whether discontinuing the combination leads to improvement in metabolic measures. Subjects who complete the acute phase will be asked to consent separately to the randomized maintenance phase.