
Efficacy and Safety of SR58611A in Patients With Major Depressive Disorder (SIRIUS)
Major Depressive DisorderTo evaluate the efficacy of two fixed doses of SR58611A (175 mg q12 and 350 mg q12) compared to placebo in patients with Major Depressive Disorder (MDD) using paroxetine (20 mg qd) as positive control. In addition, the tolerability and safety of SR58611A in patients with MDD will be evaluated.

Ropinirole Controlled Release (CR) as an Adjunctive Agent in the Treatment of Major Depression
Depressive DisorderMajorThis is an 8 week study for patients who are currently taking antidepressant medication but not fully responding. Ropinirole CR would be taken in conjunction with current antidepressant medication. Patients come into the clinic once a week when starting on the medication and then once every other week for the remainder of the 8 weeks.

Efficacy Study of Memantine Hydrochloride and Escitalopram for the Treatment of Co-Morbid Depression...
AlcoholismDepressionThe aim of the present study was to examine the influence of memantine, a noncompetitive NMDA receptor blocker, in depression co-morbid with long term alcohol heavy use comparing to SSRI-inhibitor, escitalopram. Second goal is to compare their influence to cognitive tasks and the third goal is to follow up alcohol-use with these two medicines.

Antidepressant Effects on cAMP Specific Phosphodiesterase (PDE4) in Depressed Patients
Major Depressive DisorderHealthyThe primary purpose of this protocol is to compare PDE4 levels before and after starting a selective serotonin reuptake inhibitor (SSRI) sertraline, citalopram or escitalopram in unmedicated depressed patients. The secondary purpose is to compare PDE4 levels between unmedicated depressed patients and healthy subjects.

A Study in Relapse Prevention of Treatment-Resistant Depression
Treatment Resistant DepressionThe purpose of this study is to determine whether olanzapine and fluoxetine combination (OFC) if used for a long time (47 weeks) makes patients suffering from Treatment Resistant Depression stable, determine if OFC is safe when used to treat patients with Treatment Resistant Depression for a long time (up to 47 weeks), to determine whether olanzapine and fluoxetine combination or fluoxetine alone is better to treat Treatment Resistant Depression when treated for a long time (up to 47 weeks) and to assess the quality of life during treatment.

Assessment of Cognitive Functioning Before and After Treatment With Duloxetine
Major Depressive DisorderThe purpose of this study is to study the effect of duloxetine treatment on (1) cognitive functions, the brain mechanisms involved with thinking, reasoning, learning, and remembering; (2) psychosocial functions, how someone interacts with his/her social environment; and (3) the relationship between these two functions, in people who have major depressive disorder, a severe form of depression.

Neurocognitive Enhancement in Major Depressive Disorder
Major Depressive DisorderThe purpose of this study is to examine the effects of neurocognitive enhancement on cognitive abilities and related social and adaptive behaviours in individuals diagnosed with major depressive disorder. Subjects in this study will be randomized to receive Neurocognitive Enhancement Therapy (NET) or to a wait list and then NET . Secondary aims include examining whether the cognitive benefits are potentiated by repeated exposure during in-home practice with complementary exercises. Additionally, the investigators will examine the durability of the effects and their generalization to functional capacity and everyday functional performance after completion of the groups.

Safety and Efficacy Study in Patients With Major Depressive Disorder
Depressive DisorderThe purpose of this study is to test if GSK163090 can reduce the symptoms of depression. The safety and how well the body can handle the drug will also be investigated. The study will be conducted in Russia in hospitalised patients with severe depression. GSK163090 will be compared with placebo, which looks like the study drug but does not contain any active substance. Subjects will be given either the study drug or the matching placebo.

Therapy Targeting Depression and HIV Treatment Adherence (The TRIAD Study)
HIVDepression1 moreThis study will test a therapy for both helping people adhere to their HIV medication regimens and treating them for depression.

Safety and Efficacy of Levomilnacipran ER (F2695 SR) in Major Depressive Disorder
Major Depressive DisorderThe purpose of this study is to evaluate the efficacy, safety, and tolerability of Levomilnacipran ER versus placebo in the treatment of outpatients with major depressive disorder.