Antidepressant Effects of Nitrous Oxide
Major Depressive DisorderTreatment Resistant DepressionTo evaluate the acute and sustained antidepressant effects of nitrous oxide in people with major depressive disorder; and further evaluate these effects by identifying the optimal dose and regimen to guide current practice, and to plan a future large pragmatic trial.
Virtual Mindfulness Intervention RCT
DepressionAnxietyMindfulness-based interventions (MBIs) have emerged as clinically effective interventions for anxiety, depression, and general distress. However, there are significant barriers to accessing MBIs in the general population including length of treatment and cost. Furthermore, in the present COVID-19 pandemic, there is a demand to conduct virtual clinical services. However, to date, not much is known regarding the effectiveness of mindfulness groups that are conducted virtually. The aim of the present study is to examine the effectiveness of a five-week abbreviated MBCT intervention delivered virtually for a physician-referred, treatment-seeking, community sample. The virtual mindfulness group will be compared to a five-week wait-list control group. All wait-listed study participants will be given the opportunity to participate in the intervention after study completion. At present, clinical wait times for services far exceed five weeks, thus participants that are wait-listed will not experience delay in their treatment.
TBS Treatment for Treatment-Resistant Depression
Major Depressive DisorderUnipolar DepressionDepression is a highly disabling disease that is prevalent throughout the world. The treatments proposed and studied to date have shown to be partially effective in treating this condition. Neuromodulation strategies have been used as an alternative, especially for refractory and challenging cases. In this context, studies investigating the effectiveness of transcranial magnetic stimulation, including the theta burst stimulation (TBS) modality, have been increasing in number. However, there is still a lack of information seeking to explore the maximum effectiveness in the TBS modality. Therefore, the investigators developed a new stimulation protocol consisting of 3 TBS sessions per day, with an offer of 1200 pulses per session and a 30-minute interval between sessions. The protocol will be performed for 15 days, totalizing 45 stimulation sessions. The stimulations will be directed to the left dorsolateral prefrontal cortex (F3) and will be performed in a Magventure MagPro R30 device. The investigators will select 100 patients with unipolar major depression, following previously established inclusion and exclusion criteria, and will apply the protocol randomly, dividing the patients into an active and placebo group. The research team hypothesized that the active group patients will have greater improvement in symptoms of depression assessed by the 17-item hamilton depression scale over patients of the placebo group. In addition, other scales will be used for secondary outcomes. The researchers also hypothesized that there will be no difference between patients placed in the active or placebo groups in terms of side effects.
Internet-based Mindfulness-based Training (iMBT) for People With Depression
MindfulnessDepressionThe research goals of this randomized controlled trial are to determine the feasibility and the mechanism of change of iMBT that has been developed using the Acceptance Checklist for Clinical Effectiveness Pilot Trials. The primary research question is as follows: What is the effectiveness of the iMBT in relation to improvements on depressive symptoms among people with clinical depression, relative to a usual care control after the intervention and in 3-month follow-up? Secondary questions include the following: Which facet(s) of mindfulness (i.e., observe, describe, act with awareness, non-react and non-judgement) improved during the intervention? How does the growth trajectory of different facets of mindfulness relate to the improvement of well-being and reduction of ill-being? The investigators hypothesize that: H1 Participants in iMBT group will have greater reduction in depressive symptoms and increase in all facets of mindfulness and mental well-being, than the usual care group at post-intervention, and 3-month follow-up. H2 Using latent growth analysis, the intraindividual growth trajectory of the monitor and acceptance facets of mindfulness would mediate the effect of iMBT on the intraindividual changes in depressive symptoms. H3 Using multi-group analysis, in accord with Acceptance and Monitor theory, the relationship between the growth trajectory of monitor facets of mindfulness and the growth trajectory of depressive symptoms will be moderated by the level of acceptance. People with greater acceptance of inner experience will benefit more from the change of monitor facets of mindfulness in iMBT.
Repetitive Transcranial Magnetic Stimulation and Acceptance and Commitment Therapy
Chronic PainDepressionVeterans with comorbid chronic pain and depression are highly prevalent, have poor functional status and low quality of life, are at increased risk of suicide and lack access to effective treatments. To address this problem, the proposed research will examine the feasibility of a novel approach that integrates repetitive Transcranial Magnetic Stimulation and Acceptance and Commitment Therapy with the overall goal of maximizing functional improvement in Veterans with chronic pain and depression. This is an important first-step in preparation for a future randomized efficacy trial. The investigators will also include two cognitive control tasks with concurrent electroencephalography to explore as a potential objective indicator of treatment response. This application addresses a critical need within the Veterans Health Administration and is closely aligned with the focus area of developing suicide prevention treatments that influence participation in life roles.
Evaluation of a Male-specific Psychotherapeutic Program for Major Depressive Disorders
Major Depressive DisorderThis project aims to evaluate a male-specific psychotherapeutic program (MSPP) for MDD based on cognitive behavioral therapy (CBT). The primary goal is to test the superiority of the MSPP. This will be conducted in two groups of depressed men, namely eudonadal depressed men and hypogonadal depressed men receiving testosterone treatment (TT). In a randomized study design, the MSPP will be compared to a standard CBT and a waitlist control group, resulting in a total of six study groups. Both standardized psychotherapy programs will encompass 18 sessions delivered in a weekly manner, starting at study week 6 and continuing until study week 24. Aligned with the TT-related medical visits of the hypogonadal men, all participants will be followed up with clinical assessments and biosampling at weeks 0, 6, 15, 24, 36. In addition, a separate healthy control group will be examined, which will undergo only baseline assessments.
Near-infrared Transcranial Laser Therapy in Subjects With Major Depressive Disorder: A Study of...
Major Depressive DisorderThe Near-infrared transcranial laser therapy (NIR-TLT) is a non-ionizing electromagnetic wave. The NIR-TLT is invisible, penetrates the skin and skull into brain tissue and is non-invasive. The benefits of NIR-TLT are wavelength specific. A mitochondrial enzyme, the Cytochrome c oxidase, is the primary chromophore for the NIR-TLT with a wavelength of around 830 nm. When this enzyme is activated, it leads to increased adenosine triphosphate (ATP) production and this event is related to the promotion of cellular plasticity and cytoprotection. These are critical cellular processes for recovery of the depressive patients. Therefore, this study will contribute to answer the question of whether NIR-TLT has an antidepressant effect and whether it is acceptable in minority population.
Personalized Repetitive Transcranial Magnetic Stimulation Treatment for Major Depressive Episode...
Major Depressive EpisodeAdolescents and young adults with mood disorders experiencing major depressive episode have poor efficacy of medication treatment. Repetitive magnetic transcranial stimulation (rTMS) has been proven adjuvant efficacy in patients with major depressive episode. However, the optimal evidence-based stimulation parameters have not been clearly defined, which greatly limits the efficacy of rTMS in the treatment of major depressive episode. This trial will compare a novel form of personalized rTMS treatment protocol guided by neuroimaging biomarkers to the sham stimulation.The personalized selection of stimulation parameters, such as stimulation site, frequency and magnetic pulse number, will be determined by neuroimaging biomarkers. The study aims to propose a novel personalized neuroimaging-guided rTMS strategy, to evaluate the efficacy and safety of the treatment, further to understand the biological mechanism of the personalized rTMS treatment.
Neural Mechanisms of Monoaminergic Engagement in Late-life Depression Treatment Response (NEMO)...
Major Depressive DisorderThe Department of Psychiatry at the University of Pittsburgh is conducting a research study to learn about the changes that occur in the brain when individuals suffer from and then are treated for depression. The NEMO study has two main purposes. The first is to provide medication treatment to individuals ages 60 and older who are currently depressed. The second part of the study involves completing a series of 4 MRIs, which assess changes in brain function over the course of treatment. This research may help investigators to develop faster and more effective treatment plans in the future, as brain responses that are detected early in treatment may predict how well an individual will respond to antidepressant medication.
Salicylic Augmentation in Depression
DepressionDepressive Disorder2 moreThe investigators are doing this research study to find out if using aspirin along with antidepressant treatment can lessen symptoms of depression. This study also aims to find out if some people improve more from taking aspirin than others. The investigators also want to see if it is possible to predict which participants will do better based on a blood test. Aspirin is approved by the U.S. Food and Drug Administration (FDA) as an over-the-counter pain medication. But, aspirin is not approved by the FDA to make antidepressant treatment better. This research study will compare aspirin to placebo.