Active clinical trials for "Depressive Disorder, Major"

The goal of this neuroimaging clinical trial is to test whether psilocybin produces significant immediate changes in functional brain activity in networks associated with mood regulation and depression compared to placebo in patients with depression. The trial aims to determine if psilocybin: changes connectivity within brain networks associated with mood and depression changes blood flow in brain regions associated with mood and depression Participants will be attend two treatment sessions where they receive an oral medication and supportive psychotherapy. At each session, participants will undergo an MRI scan after drug administration but prior to psychotherapy. Participants will be randomly to assigned to one of two groups that will receive, 1) niacin (100mg) at the first visit and psilocybin (25mg) at the second visit, or 2) psilocybin (25mg) at both visits, respectively. Differences between groups will be compared to understand what effects on brain activity are specific to psilocybin.

Transcranial magnetic stimulation (TMS) is an effective treatment for depression, but clinical outcome is suboptimal, partially because investigators are missing biologically-grounded brain markers which show that TMS is modifying activity at the intended target in the brain. The goal of this proposal is to characterize the key markers of the brain's response to repeated doses of TMS with high resolution using invasive brain recordings in humans, and relate these brain markers to noninvasive recordings. These markers will improve the understanding of TMS and can be used to optimize and enhance clinical efficacy for depression and other psychiatric disorders.

The purpose of this study is to utilize the radioactive positron emission tomography (PET) tracer [11C]UCB-J to investigate the effect of repetitive transcranial magnetic stimulation (rTMS) on synaptic plasticity. UCB-J has been validated as a marker for synaptic density. We will use this tracer to examine if rTMS leads to changes in synaptic plasticity, specifically changes in synaptic density, in individuals receiving rTMS for MDD. If rTMS is proven effective for increasing synaptic plasticity, there is a significant potential of a new applicable treatment for a variety of diseases that affect brain physiology.

Gallbladder meridian(GB) acupoints may play an important role in the treatment of major depressive disorder (MDD). Therefore, this study is designed to focus on the traditional Chinese medicine (TCM) theory of " gallbladder dominating decision ", take the GB as the entry point, and use functional Near-Infrared Spectroscopy(fNIRS) technology to observe the effect of intradermal acupuncture on the cerebral hemodynamic indexes of the prefrontal cortex and bilateral temporal cortex of patients with MDD.

Major depressive disorder (MDD) is the world's leading cause of disability according to the World Health Organization. MDD is highly recurrent, even if clinical remission is reached after successful treatment. In fact, the enormous burden of disability, mortality and financial costs is due to the recurrent and chronic nature of MDD. The reliable prediction of the recurrence of major depressive episodes (MDEs) based on a prognostic model that is informed by biological, neurophysiological or neuroimaging data would be valuable and lifesaving for many. However, such models are still lacking. Several lines of evidence point to abnormal prefrontal control over limbic emotion processing areas in MDD owing to diminished prefrontal excitability that seems to persist during MDD remission (rMDD). Prefrontal excitability in rMDD may thus be a trait marker of MDD and may potentially be indicative of disease recurrence. Yet, research investigating the potential utility of prefrontal excitability for predicting the recurrence of MDEs is lacking. Cortical excitability can be investigated using transcranial magnetic stimulation (TMS); however, human studies have mostly probed cortical excitability of the motor cortex, a brain region not considered to be central in the neuropathology of MDD. Hence, knowledge of the effect of TMS on prefrontal excitability is limited. Moreover, whether immediate prefrontal modulation by TMS can predict the recurrence of MDEs in fully remitted MDD patients remains to be investigated. Thus, there is a need for research that aims to quantify the direct and immediate aftereffects of TMS on prefrontal function. Most importantly, with regard to precision medicine, there is a need for research that explores the utility of immediate prefrontal reactivity to TMS for predicting MDE recurrence. Here, the investigators propose a research program that will exploit the combination of functional near-infrared spectroscopy (fNIRS) with brain stimulation. Concurrent theta-burst stimulation (TBS)/fNIRS measurements will allow us to systematically investigate stimulation-induced modulation of blood oxygenation as a proxy for induced brain activity changes (TBS is a modern form of patterned TMS). The findings from this study will (1) elucidate the immediate effects of excitatory and inhibitory brain stimulation on prefrontal activity in rMDD and controls and (2) validate the potential utility of stimulation-induced brain modulation for the prediction of MDE recurrence.

The current project aims to improve the well-being of trans and nonbinary (TNB) individuals through an online intervention (Trans Care) targeting the reduction of symptoms of gender dysphoria. The Trans Care intervention will involve the creation of an online intervention comprised of eight modules intended to reduce symptoms of gender dysphoria, increase active coping, and improve the well-being of TNB individuals. Aim 2 is a randomized controlled trial of the proposed intervention and will enroll 260 TNB participants.

Major depressive disorder (MDD) is a common chronic disease. It is the main cause of morbidity and disability in the world with, among other things, an increase in cardio-metabolic risk and a reduction in life expectancy, regardless of suicide risk. MDD is the most expensive medical condition: 10-20 billion €/year in France. This cost is mainly attributable to the functional consequences of the disease, highlighting the medico-economic challenge represented by the optimization of the organization of care. In France, more than 80% of MDD patients are enrolled in non-psychiatric care pathways, mainly primary care or MSO hospital care (medicine, surgery, obstetrics). Unfortunately, less than half of patients benefit from treatment at an appropriate dosage or duration, thus exposing them to the risks of relapse, recurrence and chronic evolution. It is necessary to optimize this management, in particular by improving secondary prevention, which consists of maintaining treatment in the months following symptomatic remission. Several support programs (monitoring with assessment of symptomatology) have shown their effectiveness on depressive symptomatology with a favorable medico-economic report, in particular by allowing maintenance of antidepressant treatment. None of these studies have been conducted on French care pathways. Investigators propose to evaluate the efficacy of telemedicine management (added to usual care) in non-psychiatric care pathways on the evolution of depressive symptomatology for MDD patients. Investigators hypothesize that telemedicine monitoring downstream of MSO hospitalization will increase the response rate to antidepressants at 6 months and reduce the costs attributed to depressive symptoms compared to usual care, in particular by optimizing secondary prevention strategies by maintaining treatment. The main objective of the research is to assess the efficacy of telemedicine monitoring on depressive symptoms and treatments, added to the out-of-hospital downstream care pathways for patients initially hospitalized in MSO (medicine-surgery-obstetrics), compared to usual care.

The purpose of this study is to determine if omega-3 polyunsaturated fatty acids as a monotherapy have antidepressant effects during pregnancy. It will also provide pilot data pertaining to relationships between apparent response to omega-3 monotherapy and both plasma cytokine and erythrocyte essential fatty acid concentrations.

The study will evaluate the efficacy, safety, and tolerability of 450 milligrams (mg) and 900 milligrams (mg) of Rapastinel, compared to placebo in participants with major depressive disorder (MDD).

This study will assess the long-term safety and tolerability of ALKS 5461 as an adjunctive treatment for refractory MDD.