300,000+ clinical trials. Find the right one.

668 active trials for Depression

Neurobiology of Suicide

Background: There are no good treatments for people considering suicide. Researchers want to study suicide with questions, blood tests, brain imaging, and sleep studies. They hope to better understand suicide, so they can help suicidal people. Objective: To understand what happens in the brain when someone has thought about or attempted suicide. Eligibility: Group 1: Adults ages 18 70 who have thought about or attempted suicide recently Group 2: Adults ages 18 70 who have thought about or attempted suicide in the past Group 3: Adults ages 18 70 who have depression or anxiety, but have never thought about suicide Group 4: Healthy volunteers the same ages. Design: Participants will be screened in another protocol. Adults who have recently thought about or attempted suicide must be referred by a doctor. They may do up to 3 phases of this study. Groups 2, 3 and 4 will do only Phase 1 and will not get ketamine. Phase 1: 1 week in hospital. Participants will have: Physical exam. Questions about thoughts and feelings. Thinking and memory tests and simple tasks. Blood and urine tests. Two MRI scans. Participants will lie on a table that slides into a metal cylinder that takes pictures. They will have a coil over their head and earplugs and do a computer task. Sleep test. Disks and bands will be placed on the body to monitor it during sleep. Magnetic detectors on their head while they perform tasks. A wrist monitor for activity and sleep. Lumbar puncture (optional). A needle will collect fluid from the back. Shock experiments (optional). Participants will observe pictures and sounds and feel a small shock on the hand. Phase 2: 4 days in hospital. A thin plastic tube will be placed in each arm, one for blood draws, the other to get the drug ketamine once. Participants will repeat most of the Phase 1 tests. Phase 3: up to 4 more ketamine doses over 2 weeks. Participants will have follow-up calls or visits at 6 months and then maybe yearly for 5 years.

Start: December 2015
Mobile Technologies and Post-stroke Depression

The recent development of acute phase treatments has dramatically improved stroke functional outcome but post-stroke neuropsychiatric disorders, notably post-stroke depression, continue to contribute to the heavy burden of stroke. While these conditions affect about 25% of stroke patients at 3 months, they are under-reported spontaneously by patients and are under-evaluated and treated by clinicians. Other than stroke severity and psychiatric history, risk factors for post-stroke depression remain a matter of debate, thus preventing identification of high-risk patients. Moreover, to date, neither pharmacological nor nonpharmacological treatments have demonstrated a significant benefit in the prevention of this disorder, thereby also impeding the development of early treatment strategies. Yet,the early management of post-stroke depression is critical given its negative influence on long-term functional outcomes, medication adherence, efficient use of rehabilitation services and the risk of stroke recurrence or vascular events. There is a pressing need to develop new tools allowing for the early detection of post-stroke neuropsychiatric complications for each individual patient. The rapid expansion of ambulatory monitoring techniques, such as Ecological Momentary Assessment (EMA), allows daily evaluations of mood symptoms in real time and in the natural contexts of daily life. The investigators have previously validated the feasibility and validity of EMA to assess daily life emotional symptoms after stroke, demonstrating its utility to investigate their evolution during the 3 months following stroke and to identify early predictors of post-stroke depression such as stress reactivity and social support, suggesting that EMA could be used in the early personalized care management of these neuropsychiatric complications. Recently, preliminary data have also emphasized the potential of EMA interventions to improve the outcome of psychiatric disorders.

Start: September 2020
PET Imaging of Cyclooxygenase in Participants With Major Depressive Disorder (MDD)

Purpose: To determine whether COX-1 and COX-2 are detectable in the brains of individuals with MDD experiencing a major depressive episode (MDE). Endpoints: Primary Endpoint: Group A - Calculation of COX-2 density from [11C]MC1 PET scans, using baseline scans and scans after blockade with celecoxib. Group B - Calculation of the density of COX-1 using [11C]PS13 in healthy volunteers and depressed subjects. Secondary Endpoints: the relationship between peripheral markers of inflammation and COX binding the relationship between clinical rating scales and COX binding Study Design: Group A Sixteen (16) medication-free participants with MDD; Group B Three groups of 16 subjects each will be studied: 1) Medicated MDD, 2) Unmedicated MDD and 3) healthy volunteers. Participants may be male or female. They must be between 18 and 70 years old. Individuals may be recruited from anywhere but, for those participating in the outpatient study, most are expected to come from the Washington DC metropolitan area. MDD participants must be in good medical health and provide informed consent. Data acquisition of [11C]MC1 and [11C]PS13: Dynamic 3D PET brain scan on PET/CT. One venous line for radioligand injection. Arterial line for blood sampling. Transmission (CT) scan will be performed to measure and correct for attenuation. Injection of 20 mCi of [11C]MC1 or [11C]PS13. Emission scans on PET/CT or PET scanner. Emission scan for about 90 min (possibly up to 2h). Frame information: 6 frames 30 sec each, 3 frames 1 min each, 2 frames 2 min each, and remaining frames of 5 min each. Vital signs (blood pressure, pulse, and respiratory rate) and ECG (either 3 or 12 lead) will be recorded within three hours of tracer injection, in the middle, and after the PET scan. We will take the two [11C]MC1 scans preferably in same day. They should be separated by at least 2.5 hours Blood analysis in [11C]MC1 and [11C]PS13: Measurement of whole blood, plasma activity, and metabolite levels in all phases: MIB/NIMH. Measurement of whole blood activity by PET Department is not required in any phase. Administration of celecoxib: In these scans, specific binding of [11C]MC1 to COX-2 in the brain will be verified by a pre-blocking study using celecoxib (600 mg PO). Participants will be encouraged to have a light meal prior to PET studies with blockade by celecoxib. After oral administration, the plasma concentration peaks at about two hours (Paulson et al. 2001). Thus, we will administer celecoxib about two hours before the second PET scan. Safety monitoring by MIB/NIMH: Pre-scan labs within 24 hours prior to injection: Urine pregnancy test (woman of child bearing potential), CBC, acute care panel (Na, K, Cl, CO2, creatinine, glucose, urea nitrogen), hepatic panel (alkaline phosphatase, ALT, AST, bilirubin total, and bilirubin direct), glucose, mineral panel (albumin, calcium, magnesium, phosphorus). C-reactive protein (CRP) will be measured in the pre-PET blood sample to assess overall inflammatory status in periphery. Data for safety monitoring will be recorded at three timepoints: no more than three hours before injection, about the middle of the PET scan, and after the PET scan. Recorded data included: blood pressure, pulse, respiratory rate, and EKG (either 3- or 12-lead). Post-scan labs: CBC, acute care panel (Na, K, Cl, CO2, creatinine, glucose, urea nitrogen), hepatic panel (alkaline phosphatase, ALT, AST, bilirubin total, and bilirubin direct), glucose, mineral panel (albumin, calcium, magnesium, phosphorus). Pregnancy Tests: For women of childbearing potential, urine pregnancy testing will be done within the 24 hours prior to any MRI or PET scan. If the pregnancy test is positive, PET and MRI will not be done, and the subject will be taken off the protocol. Follow-up Procedures: Subjects will be contacted one to three business days after each PET scan to determine whether they have had any untoward sequelae.

Start: June 2021
Antidepressant Effects of TS-161 in Treatment-Resistant Depression

Background: Major depressive disorder (MDD) is a common, chronic mental illness. It can take weeks to months for antidepressants to work. Researchers want to test a new drug that might act more rapidly. Objective: To see if TS-161 will improve symptoms of depression in people with MDD. Eligibility: Adults ages 18-65 with MDD without psychotic features. Design: Participants will be screened under a separate protocol. They will have blood tests. They will complete surveys about their symptoms. Participants will have an inpatient visit at NIH. Participation may last 12-16 weeks. During the first phase of the study, participants will be tapered off their psychiatric medicines. For 2 weeks they will have a drug-free period. During Phase II participants will take TS-161 or placebo. They will take TS-161 for 3 weeks and placebo for 3 weeks. In between the 3-week time period, they will have 2-3 weeks where they will be drug free. Participants will also have the following tests during this time: Interviews Physical exams Psychological tests and surveys about their symptoms Blood draws and urine samples They may complete tests of mood and thinking MRI (Magnetic resonance imaging): Participants will lie in a machine that takes pictures of their brain. Functional MRIs: They will perform tasks displayed on a computer screen inside the MRI scanner MEG (magnetoencephalography): Participants will lie down and do tasks of memory, attention, and thinking. A cone lowered on their head will record brain activity. Electrocardiograms to record the heart s electrical activity. Electrodes will be placed on the skin....

Start: June 2021
Exploring the Effects of Corticosteroids on the Human Hippocampus

Chronic corticosteroid (CS) exposure is associated with changes in memory and the hippocampus in both humans and in animal models. The hippocampus has a high concentration of glucocorticoid receptors (GCRs), and the pre-clinical literature demonstrates shortening of apical dendrites in the CA3 region of the hippocampus and decreased neurogenesis in the dentate gyrus (DG) following CS administration. In humans, both stress and CS exposure are associated with a decline in declarative memory performance (a process mediated by the hippocampus). Impairment in declarative memory and hippocampal atrophy are reported in patients with excessive CS release due to Cushing's disease, and, by our group, in patients receiving prescription CS therapy. These findings have important implications for patients with mood disorders, as a large subset of people with major depressive disorder (MDD) show evidence of HPA axis activation, elevated cortisol and, importantly, resistance to the effects of CSs on both the HPA axis and on declarative memory. Thus, resistance to corticosteroids appears to be a consequence of MDD. this study will examine changes in declarative memory, as well as use state-of-the-art high-resolution multimodal neuroimaging, including structural and functional (i.e., task-based and resting state) MRI, in both men and women healthy controls, and, as an exploratory aim, a depressed group, given 3-day exposures to hydrocortisone (160 mg/day) or placebo. The study will translate preclinical findings to humans, provide valuable data on possible sex differences in the response to cortisol and, for the first time, identify specific hippocampal subfields (e.g., CA3/DG) in humans that are most sensitive to acute CS effects. Using resting state fMRI data and whole brain connectomics using graph theoretical approaches, we will determine the effects of cortisol exposure on functional brain networks. Furthermore, this will be the first study to use neuroimaging to compare the brain's response to CSs in people with depression vs. controls, and determine whether depressed people demonstrate glucocorticoid resistance within the hippocampus. We hypothesize that hippocampal response to acute CSs will be greatest in the CA3/DG subfield, greater in women than in men, and that depressed people will show a blunted hippocampal response to CSs compared to controls. A multidisciplinary research team with extensive experience in CS effects on the brain and hippocampal subfield neuroimaging, and a prior history of research collaboration, will conduct the project.

Start: October 2019
Development of a Mind Body Program for Obese Knee Osteoarthritis Patients With Comorbid Depression

Knee osteoarthritis (OA) is the most common joint disorder in the U.S. and a leading cause of disability. Depression and obesity are highly comorbid among knee osteoarthritis patients, and the combination of obesity and depression is associated with decreased physical activity, higher pain and disability, and more rapid cartilage degradation. Depression, obesity and osteoarthritis exacerbate one another and share a common pathophysiology involving systemic inflammation and pro-inflammatory cytokines, reflecting a complex mind-body interaction. Current treatments for knee osteoarthritis offer little to no benefit over placebo, and do not emphasize mind-body practices or physical activity to target the underlying pathophysiology. Mind-body interventions to lessen depressive symptoms and increase physical activity offer the ability to target biological, mechanical and psychological mechanisms of osteoarthritis progression in this high-risk subset. The long-term goals are to evaluate the mechanisms by which the Relaxation Response Resiliency Program (3RP) delivered via telehealth, and adapted for patients with depression, obesity and knee OA (3RP-OA) promotes increases in physical activity and improved subjective and objective aspects of knee health. The overarching hypothesis is that the synergistic interaction between mindfulness, adaptive thinking, positive psychology and healthy living skills of the 3RP-OA will reduce pro-inflammatory cytokine expression while also promoting optimal mechanical loading of the cartilage thereby slowing the progression of symptomatic knee osteoarthritis. This study aims to adapt the 3RP for the needs of knee osteoarthritis patients with depression and obesity with a focus of increasing physical activity, and iteratively establish the feasibility, credibility and acceptability of the programs and research procedures.

Start: August 2021
Food for Mind - Intervention in the Treatment of Depression

Aims. The main aim of the study is to explore whether Food for Mind - Group-based behavioral nutrition intervention alleviates depression symptoms. Furthermore, we aim to investigate, whether the intervention improves the quality of diet, eating habits, quality of life, ability to work and to study its cost-effectiveness. In collaboration with 11 public and private health care service providers in cities of Kuopio and Siilinjärvi in Northern Savo, Finland. Participants. The total number of subjects will be 144 based on power calculations. The calculation is based on the clinical decline of seven points assessed by the Center for Epidemiologic Studies Depression (CES-D) Scale. Participants sign an informed consent form to participate Food for Mind - intervention. Study design. In this randomized controlled clinical trial subjects are randomized into two parallel groups: Food for Mind -behavioral nutrition intervention group (n=72) and Group to bring Good Mood -control group (n=72). The intervention consists of behavioral nutrition counselling (5 times 1½ h and 1 time 3 h) and the control group (befriending group) (n=72) (5 times 1½ h and 1 time 3 h). Thus, in the befriending group the same visit schedule and length without any nutrition counselling is used. The befriending group consists of discussion of neutral topics, like hobbies, music, sports, and doing together. Both groups continue to have their normal depression care in the health care. Enrollment and treatment will take about four years, and follow-up will last about one year. The Northern Savo Hospital District Committee on Research Ethics gave its consent to the study protocol. Methods. All questionnaires are validated. CES-D -depression scale, Seasonal Pattern Assessment Questionnaire, The Diet Quality Index (IDQ), Diet frequency -questionnaire, Eating competence -questionnaire (ecSI 2.0), The Three Factor Eating Questionnaire, Ability to work and function -questionnaires, Assessment of Quality of Life (AQoL)-8D (8 dimensions) -questionnaire, Treatment expectancy -questionnaire, Acceptability -questioinnaire. In addition, body composition measurement and cost-effectiveness analyses to evaluate the health outcomes in relation to resource utilization and costs in Food for Mind -intervention.

Start: November 2017