Summary: Schizophrenia, bipolar and major depressive disorders collectively affect over 10 million people across the EU and are associated with annual healthcare and societal costs in excess of 100 billion Euros. When diagnosed with one of these disorders, patients are prescribed psychotropic medication such as antidepressants, mood stabilisers or antipsychotics. It is unknown whether this first-line treat...

Summary: Bipolar disorders affect approximately 4.5 million people across the European Union (EU) and are associated with high annual healthcare and societal costs. Bipolar disorder I and II represent disorders that cause extreme fluctuation in a person's mood, energy, and ability to function, in which symptoms of (hypo)mania and depression alternate. The depressive episodes of bipolar disorders are often ...

Summary: The primary objective of this study is to determine whether treatment with pimavanserin or quetiapine is associated with a greater improvement in psychosis when used in a routine clinical setting to treat hallucinations and/or delusions due to Parkinson's disease (PD) or dementia with Lewy bodies (DLB) - collectively referred to as Lewy body disease (LBD).

Summary: Patients with Parkinson's disease (PD) sometimes experience symptoms affecting their movement, such as slowness, tremor, stiffness, and balance or walking problems. Many patients also have other symptoms not related to movement, called non-motor symptoms, which may affect one's mood or emotions, memory or thinking, or cause one to see or hear things that aren't real (hallucinations) or believe thi...

Summary: A two site, 2-arm, Phase III randomized pragmatic clinical trial evaluating the effectiveness of quetiapine monotherapy in comparison to Treatment As Usual (TAU) medication management for symptoms experienced by veterans receiving rehabilitation therapy for mild traumatic brain injury (mTBI) and comorbid symptoms of posttraumatic stress disorder (PTSD).

Summary: Changes to gastric pH, gastric emptying time, gastrointestinal transit-time or the pre-systemic metabolizing effect of enzymes secreted in the mucosa may all alter the pharmacokinetics of medicines. These factors are potentially influenced by bariatric surgery. Little is so far known about how gastric bypass and sleeve gastrectomy impacts the biological availability of medication. In this study th...

Summary: This is a sequential multiple assignment randomized trial for adults (ages \> 18) with a bipolar disorder type 1 diagnosis currently experiencing a depressive episode. It is a randomized pragmatic trial that will compare four commonly prescribed treatments for bipolar depression, which includes three FDA-approved medications (Cariprazine, Quetiapine and Lurasidone) and one antipsychotic/antidepres...

Summary: The goal of this investigator-initiated, randomized, blinded, 3-armed placebo-controlled, pragmatic, clinical superiority trial is to examine the efficacy of melatonin or low-dose quetiapine versus placebo for treatment of insomnia in patients with psychiatric disorders. The aims of the study are: * To examine the efficacy of melatonin or low-dose quetiapine versus placebo for treatment of insomni...

Summary: Current antipsychotic treatments of schizophrenia are only partially effective, and their use is often associated with serious side effects. Cannabidiol is a natural counterpart of the psychoactive component of marijuana, delta-9- tetrahydrocannabinol and has no psychotomimetic or addictive properties. In a controlled clinical trial of cannabidiol versus amisulpride in acute paranoid schizophrenia...

Summary: The study aims to investigate the efficacy of a psychoeducational program as an adjunctive treatment for depression. The study will involve 338 patients diagnosed with Major Depressive Disorder (MDD) of moderate severity. Participants will be randomly assigned to receive either Treatment as usual (TAU) alone or TAU plus the psychoeducational program. The program consists of six weekly group sessio...

Summary: This is a single-center, prospective observational pilot study. The objective of this study is to evaluate the effectiveness of trazodone as compared to quetiapine, in the management of ICU delirium in adult (\>=18 years old) surgical and medical ICU patients. The investigators will compare outcomes such as delirium duration, delirium-free days, coma-free days, in-hospital mortality, 28-day mortal...

Summary: This is an observational (non-interventional) prospective study, carried out in drug-naïve outpatients who start a treatment with escitalopram, fluoxetine, sertraline or quetiapine. Five blood samples are collected (i.e. before initiating the drug, and then after 1, 2, 4 and 8 weeks of treatment). It does not affect the choice or the treatment dose. The primary objective of this study is to measur...