Active clinical trials for "Depressive Disorder, Treatment-Resistant"

This study will determine the effectiveness of adding S-adenosyl methionine to antidepressant drug treatment in reducing depressive symptoms in depressed people who have not responded to antidepressants alone.

The purpose of this expanded access program (EAP) is to provide expanded access to esketamine treatment and collect additional safety data and quality of life until esketamine is commercially available for participants with Treatment-Resistant Depression (TRD).

This is a prospective, two-arm randomized controlled trial. 100 patients diagnosed with resistant depression in psychiatric care clinic in Edmonton, Alberta, Canada will be randomized to one of two conditions: (1) enrolment in rTMS sessions alone (2) enrolment in the rTMS sessions plus iCBT. Patients in each group will complete evaluation measures (eg, recovery, general symptomatology and functional outcomes) at baseline, 1 month, 3 months and 6 months. The primary outcome measure would be changes to scores on the Hamilton Depression Rating Scale. Patient service utilization data and clinician-rated measures will also be used to gauge patient progress. Patient data will be analyzed with descriptive statistics, repeated measures and correlational analyses.

This study aims at investigating the persistence of antidepressant effect of Nitrous Oxide (N2O) for Treatment-Resistant Depression(TRD). The investigators also aim to assess the effect of N2O on the electroencephalograph, multimodal magnetic resonance imaging(MRI), blood cytokines, feces bacteria flora and neuropsychological performance in patients with TRD. The investigators further aim to identify the predictors of N2O's antidepressant effeect using the above techniques.

Randomized, two-part, placebo-controlled study of single ascending doses of NV-5138 in healthy volunteers, and a single dose of NV-5138 in subjects with Treatment-Resistant Depression (TRD)

The purpose of this study is to assess the safety, tolerability and pharmacokinetics of intranasal HS-10345 (84mg) compared with placebo in participants with treatment-resistant depression (TRD).

The aim of the study is to investigate the safety of GH001 (containing 5-methoxy-dimethyltryptamine; 5-MeO-DMT), and to investigate its effects on severity of depressive symptoms, and its dose-related psychoactive effects in patients with Treatment-Resistant Depression (TRD). The study is comprised of two open-label, single-arm study parts where Part A evaluates single doses of GH001 at two dose levels and Part B evaluates a specific individualized dosing regimen of GH001.

The purpose of this study is to determine if low-frequency transcranial magnetic stimulation (TMS) is safe and feasible for treating depressive symptoms in patients with epilepsy. Patients will receive an accelerated protocol of TMS consisting of three consecutive days of treatment. Patients will have in-person follow up visits after one month and again after six months.

The purpose of this pilot study is to obtain information about older Veterans' preferences for treatment of depression and insomnia and to pilot test the feasibility and clinical effect of Brief Behavioral Treatment for Insomnia (BBTI) BBTI for older Veterans living with Treatment Resistant Depression (TRD) and insomnia.

The purpose of this study is to assess the safety and tolerability of esketamine nasal spray in participants with treatment-resistant depression (TRD).