Active clinical trials for "Depressive Disorder, Major"

The purpose of this study is to determine efficacy differences between ALTO-100 and placebo, used either as monotherapy or adjunctively to an antidepressant, related to patient characteristics.

This randomized two-arm intervention trial administers 8 weekly cognitive behavioral therapy (CBT) sessions and 4 bi-weekly active whole-body hyperthermia (active WBH) sessions or 4 bi-weekly sham WBH sessions to adults aged 18 years or older with major depressive disorder (MDD).

HYPOTHESIS: Pregnenolone administration will be associated with greater reduction in depressive symptom severity than placebo in women with current mMDD. STUDY AIMS: Primary Aim: Determine if pregnenolone is associated with greater reduction in depressive symptom severity than placebo in women with mMDD, as measured by MADRS. Secondary Aims: Determine if pregnenolone is associated with greater reduction in anxiety symptom severity than placebo in women with mMDD. Determine if pregnenolone is associated with greater improvement in cognition than placebo in women with mMDD. Determine if pregnenolone is associated with greater improvement in quality of life than placebo in women with mMDD. Determine if pregnenolone is associated with greater improvement in vasomotor symptoms of menopause than placebo. Mechanistic Aims: Determine whether changes in neurosteroid levels with pregnenolone mediate clinical response. Determine if baseline neurosteroid levels predict pregnenolone response. Determine whether depressive symptoms, anxiety, sleep or vasomotor symptoms improve first. A crossed-lagged panel model will explore serial correlations between changes in outcome measures.

A single subanesthetic dose infusion of the N-methyl-D-aspartate (NMDA) receptor antagonist ketamine has rapid and robust antidepressant effects in patients with treatment-refractory major depressive disorder (TRD). A family history of an alcohol use disorder (Family History Positive, FHP) is one of the strongest identified predictors of an improved antidepressant response to ketamine. Like ketamine, alcohol is a functional NMDA receptor antagonist. FHP is associated with differential response to both alcohol, e.g. decreased body sway and plasma cortisol, and ketamine, e.g. blunted psychotomimetic side effects. One of the primary mechanistic hypotheses for ketamine's antidepressant action is the acute intrasynaptic release of glutamate from major output neurons, e.g. cortical pyramidal cells. Preliminary clinical studies have demonstrated this acute glutamate "surge" in response to subanesthetic dose ketamine. Based on these findings, the investigators hypothesize that ketamine's enhanced antidepressant efficacy in FHP TRD subjects is, at least in part, attributable to increased glutamate release relative to TRD subjects without a family history of alcohol use disorder (Family History Negative, FHN). The investigators also hypothesize that alcohol similarly augments glutamate release in this bio- logically-enriched subgroup, which may be a more objective biomarker than family history status. To test these hypotheses, the investigators have designed a now two-site, open-label study of 21-65 year old medically and neurologically healthy, currently moderately-to-severely depressed TRD patients. In total, the investigators plan to recruit 25 FHP and 25 FHN TRD subjects. All subjects must not have a lifetime substance use disorder (except nicotine or caffeine), no lifetime history of an alcohol use disorder and socially drink. The experimental portion consists of two phases. The preliminary first phase is a medication taper (if needed) and psychotropic medication-free period. The experimental second phase comprises two pharmacokinetically-defined basal-bolus alcohol and one subanesthetic dose (0.5mg/kg x 40 minute) ketamine infusions. The first alcohol infusion will establish the pharmacokinetic profile for a subsequent alcohol infusion occurring during 7T-magnetic resonance imaging (MRI), both resting-state functional MRI (rs-fMRI) and magnetic resonance spectroscopy (MRS) to detect glutamate in the ventromedial prefrontal cortex/ventral anterior cingulate cortex (vmPFC/vACC). The ketamine infusion will also occur during 7T-MRI. The primary outcome measure is group mean change in Montgomery-Åsberg Depression Rating Scale (MADRS) score from pre-ketamine infusion (baseline) to one week post-infusion, where the investigators observed ketamine's greatest antidepressant effect in FHP TRD. Additional outcome measures are vmPFC/vACC glutamate change in response to ketamine and alcohol challenge based on family history status. In summary, this study will provide key mechanistic information on ketamine's improved antidepressant efficacy in a biologically-enriched subgroup. This will contribute to the systematic development of more efficacious, personalized treatments for major depression in an effort to reduce its enormous public health burden.

This study aims at investigating if adjunctive buprenorphine at low dose to treatment as usual is effective in reducing severe suicidal ideas in major depressive episode, and at determining the most effective dose.

This neuroimaging study is a clinical trial investigating the effectiveness of intermittent theta-burst transcranial magnetic stimulation (iTBS-TMS) to the inferior parietal lobule (IPL) in reducing suicide risk in patients with major depressive disorder (MDD) and borderline personality disorder (BPD).

Antidepressant-free unipolar melancholic depressed patients (at least stage 2 treatment-resistant) will be selected by a certified psychiatrist, who will administer (semi-)structured clinical interviews. Because concomitant antidepressant treatment can confound outcome results, all patients will go through a medication washout before entering the study and they will be free from any antidepressant, neuroleptic and mood stabilizer for at least two weeks before entering the treatment protocol. Only habitual benzodiazepine agents will be allowed. STEP 1: Patients will be treated with in total 20 accelerated intermittent Theta Burst Stimulation (aiTBS) sessions (3000 pulses/session) over the left dorsolateral prefrontal cortex, which will be spread over 4 days. On each stimulation day, a given patient will receive 5 sessions with a between-session delay of 15 minutes. Patients will be randomized to receive either the real aiTBS or sham treatment (first week). However, the sham group will receive real aiTBS treatment with 10 days' time interval. The investigators expect that real aiTBS treatment and not sham will result in a significant and clinical meaningful response. STEP 2: To optimize treatment and reduce relapse following the iTBS treatment, in a stepped care approach, all patients then continue with cognitive control training (CCT) ten days later. This CCT consists of 20 sessions, spread over 4 weeks. Patients will be randomized to receive either real CCT or a control training. During this follow-up treatment, all patients will be prescribed antidepressant medication (SSRI) again. As iTBS treatment effects are known to decline over time, the investigators expect that combining aiTBS with a follow-up CCT therapy will stabilize the clinical effects over time compared to receiving the iTBS treatment alone. For baseline comparisons, patients will be closely matched for gender and age with never-depressed, medication-free healthy volunteers. No volunteer will undergo treatment.

Background: Repetitive transcranial magnetic stimulation (rTMS) is a treatment for depression. It stimulates the brain. Researchers want to see if using magnetic resonance imaging (MRI) scans helps locate the best area for rTMS in each person. They also want to find other ways to make it more effective. Objective: To study the effects of combining MRI- guided transcranial magnetic stimulation (TMS) and talk therapy on the brain in people with depression. Eligibility: Adults ages 18-75 with a major depressive disorder and current depression. If taking an antidepressant, should have been doing so for at least 4 weeks. Design: Participants will be screened with medical and psychiatric history, psychiatric evaluation, physical exam, and blood and urine tests. Phase 1 is 1-4 visits in 1 week. Participants will have: Brain MRI. Participants will lie on a table in a scanner. Questions about their medical history and psychology symptoms Tests of mood and thinking Tests of brain activity. Participants may do tasks during these tests: A cone with magnetic detectors is put on the head. A cap with electrodes is put on the scalp. TMS. A brief electrical current passes through a wire coil on the scalp. A metal disk will be placed on the arm. A nerve will be stimulated with a small electrical shock. Phase 2 is about 6 to 7 weeks. There will be 30 daily sessions of combined therapy and repetitive TMS (rTMS) for 6 weeks. Participants will receive rTMS and another therapy by computer. For rTMS, repeated pulses will pass through the coil. This is followed by up to 3 additional visits, when: Participants will repeat Phase 1 tests Participants will rate their depression symptoms. Phase 3 is 3 visits over 3 months. Participants will rate their depression symptoms and repeat some of the previous questionnaires and tests of mood and thinking.

Repetitive transcranial magnetic stimulation (rTMS) is a treatment for depression. The investigators are continuing to learn how to optimize outcomes from rTMS treatment. The purpose of this research project is to use brain network connectivity patterns as measured by resting state functional magnetic resonance imaging (fMRI) to confirm a way to optimize the use of rTMS to treat depression. In addition, the study aims to gain a better understanding of how rTMS influences brain networks.

Synopsis Aim: The purpose of the study is to determine the stimulus of electrical current during electroconvulsive therapy (ECT) that produces the optimal balance between antidepressant effect and memory disturbance. Specifically, this study aims to compare the 0.5 ms and 1.0 ms pulse width stimuli. Design: National, register-based randomized trial, unmasked with two treatment arms. Primary objective: To test the hypothesis that a 1.0 ms pulse width stimulus produces a higher remission rate (< 11 on the MADRS-S) than a 0.5ms pulse width stimulus. Secondary objectives include testing for differences in: self-rated global health measured with the EQ5D-VAS subjective memory worsening (increase of 2 on the memory item of the CPRS) antidepressive response (decrease of 50% on the MADRS-S) number of ECTs in the treatment series readmission and suicide rate within 6 months Study population: patients with unipolar or bipolar depression. Sample size: 800 patients, 400 patients in each arm. Inclusion criteria: At least 18 years of age at the time of inclusion Diagnostic criteria fulfilled for unipolar, or bipolar depressive episode according to ICD-10. An indication for and accepting ECT A Swedish personal identity number. Capable of giving informed consent. Exclusion criteria: If the investigator judges a certain pulse width to be inappropriate for the patient. Inclusion time 2019-05-01-2022-11-15. Abbreviations CGI: Clinical Global Impression Scale CPRS: The Comprehensive Psychopathological Rating Scale ECT: Electroconvulsive therapy EQ5D: EuroQual-group 5 Dimensions Scale ICD-10: International Statistical Classification of Diseases and Related Health Problems. - 10th revision, MADRS-S: Montgomery-Åsberg Depression Rating Scale, self assessed version. Q-ECT: Swedish national quality register for ECT VAS: Visual analogue scale