Clinical Research Directory

Evaluating Conversational Artificial Intelligence for Depression Management

The goal of this clinical trial is to evaluate how a conversational method of collecting medical history affects patients' perceptions and experiences compared to clinical care as usual. This conversational AI intake system collects medical history information, can be completed by participants at home, and do not disrupt routine clinical care. The primary questions this study aims to answer are: 1\) Does conversational intake affect patients' perceptions of empathy during their clinical interactions? This will be a prospective study that follows a cohort of participants for four (4) months after engaging with the AI intake system. Because each participant serves as his/her own control, both comparators will be administered within-subject, and the order of exposure (AI intake vs. usual care) will be randomized to minimize sequence effects. After completing the AI intake method, participants will rate their experience, particularly in terms of empathy and compare it to their usual interactions with their own clinicians.

Efficacy of Spectrally Optimized Light on Cognitive Impairment in Major Depressive Disorder and Its Neuroimaging Mechanisms

This study aims to validate the therapeutic efficacy and safety of spectrally optimized light (SOL) in ameliorating cognitive impairment (CI) in major depressive disorder (MDD), characterize the functional and structural features of the hippocampus （HPC）-dorsolateral prefrontal cortex （dlPFC） neural circuitry in MDD patients with cognitive impairment and examine the mediating effect of the HPC-dlPFC neural circuit on the cognitive improvements induced by SOL treatment in MDD-CI patients. Patients with MDD-CI are required to only receive selective serotonin reuptake inhibitors (SSRIs) as primary medication for at least one week or not do anything treatment before. SOL is a kind of Bright Light Therapy(BLT). Qualified participants will be randomly assigned to the experimental group and the control group. The experimental group will receive the intervention of BLT, and the control group will receive the intervention of dim red light (placebo). The intervention will last for four weeks. The participants will be followed once in a week during intervention and in 4th week after intervention. Demographic information will be collected at baseline, cognitive function will be evaluated at baseline, 2nd, ,4th and 8th weekends after intervention beginning. and other symptoms such as depression, anxiety and sleep were assessed at baseline, 1st, 2nd, 3rd ,4th and 8th weekends after intervention beginning.Moreover, structural and functional MRI scans will be made at baseline and after four weeks intervention. During intervention, patients with MDD-CI will keep a record of daily light exposure duration, complete the daily sleep diary as well.

Gender Differences in Depression Severity, Gender-Sensitive Symptoms, Resilience, and Stigma in Major Depressive Disorder

Depression is a common and serious mental health condition that affects mood, thoughts, behavior, and overall quality of life. It arises from a complex interaction of biological, psychological, and environmental factors. While depression is more frequently diagnosed in women, research suggests that men may experience and express depressive symptoms differently. Men are more likely to display symptoms such as irritability, anger, impulsivity, or increased alcohol use, and they may be less likely to seek professional psychological support due to social expectations and fear of stigma. Stigma-both self-stigma (internalized negative beliefs about having a mental illness) and perceived social stigma (concerns about being judged by others)-can negatively influence individuals' willingness to seek help and adhere to treatment. In addition, psychological resilience, defined as the ability to cope effectively with stress and adversity, may play an important role in how individuals experience depressive symptoms and respond to treatment. This study aims to compare women and men diagnosed with Major Depressive Disorder in terms of depression severity, gender-sensitive depressive symptoms, self-stigma, perceived social stigma, and levels of psychological resilience. It will also examine the relationships among these factors to better understand how gender-related differences influence the experience and management of depression. Findings from this study may contribute to improved recognition of gender-specific features of depression, reduction of stigma, and the development of more individualized and effective mental health interventions for both women and men.

Physical Activity-based Intervention in Depressed Patients: Clinical, Neurophysiological, Epigenetic and Metabolic Correlates

The goal of this clinical trial is to investigate the effect of a structured physical activity (PA) program on depressive symptomatology in adults with a diagnosis of major depression disorder (MDD). The study will evaluate changes in depressive symptoms and assess neurophysiological and biological modulations, including epigenetic, transcriptomic, and metabolic changes resulting from the PA intervention. The main questions it aims to answer are: * Does physical activity have an impact on depressive symptoms in patients affected by depression? * What are the neurophysiological, epigenetic, and metabolic mechanisms through which PA can modulate the intensity of depressive symptoms? Participants will be randomized into two arms: the intervention group (n total=55), in treatment with antidepressants, participating in a 12-weeks PA program; the control group (n total=55), patients in treatment with antidepressants, without receiving the PA program. All participants will be assessed at three-time points: T0 (baseline, before initiating the trial), T3 (after three months; at the end of the 12-week PA program), and T6 (6th-month follow up; three months after the PA completion). At each assessment, all participants will: * Complete clinical evaluation questionnaires * Provide blood samples * Undergo electroencephalogram (EEG) measurements. * Wear an actigraph 24 hours a day for 7 days before the initiation of the trial, at T3, and at T6.

Double-blind, Placebo-controlled Study in Adults With Major Depressive Disorder

This study will evaluate the efficacy and safety of SPN-821 in adults with major depressive disorder

An Open-Label Extension Study to Evaluate the Safety and Tolerability of SPT-300 (GlyphAllo) in Participants With Major Depressive Disorder, With or Without Anxious Distress (BUOY-1 OLE Study)

This is an open-label, monotherapy, extension study to evaluate the safety and tolerability of SPT-300 (GlyphAllo) in adults with major depressive disorder (MDD), with or without anxious distress.

A Study to Evaluate the Efficacy and Safety of SPT-300 (GlyphAllo) in Participants With Major Depressive Disorder, With or Without Anxious Distress (BUOY-1 Study)

This is a randomized, parallel-group, double-blind, placebo-controlled, monotherapy study to evaluate the efficacy, safety, and tolerability of SPT-300 (GlyphAllo) in adults with major depressive disorder (MDD), with or without anxious distress.

Understanding the Role of the Kappa Opioid Receptor in Ketamine's Attenuation of Suicidal Thoughts

This study explores how stress, suicidal thoughts, and ketamine's effects are connected in people with major depressive disorder. Stress increases the risk for suicidal thoughts, but the biological basis is unclear. Ketamine may help reduce suicidal thoughts by affecting stress-linked brain systems. This study will use smartphone tracking to monitor real-time responses to stress and positron emission tomography (PET) brain scans to study how ketamine affects brain pathways related to stress and suicidal thoughts in depressed individuals.

A Study of a Deuterated Psilocin Analog (CYB003) in Humans With Major Depressive Disorder

The purpose of this study is to determine the efficacy, safety and tolerability of CYB003 compared to matching placebo as adjunctive treatment in patients with MDD.

Home-Based tDCS Treatment Of Major Depressive Disorder

The REACH-tDCS study will evaluate the safety and efficacy of a noninvasive, at-home self-administered Sooma tDCS brain stimulation treatment for Major Depressive Disorder. The study uses randomized, blinded, placebo controlled design. The participants are assessed with video interviews and self-reports during the study, which lasts for 10 weeks followed by an optional continuation period.

A Clinical Trial of Add-on Oral Slow-release Ketamine Treatment in Major Depression

* The goal of this clinical trial is to explore if the treatment with ketamine tablets in addition to standard antidepressant therapy can reduce depressive symptoms in adults with Major Depressive Disorder. The main question it aims to answer is: Does adjunctive ketamine therapy reduce depressive symptoms after one week of treatment compared to baseline, measured by the Montgomery-Åsberg Depression Rating Scale (MADRS)? * Participants will start ketamine treatment together with a new standard antidepressant. During the treatment week, patients will receive four doses of Ketamine Hydrochloride Prolonged-Release Tablets (240 mg) at the clinic. They will fill in different questionnaires and rating scales during screening, treatment and follow-up, and will leave blood samples at five of the visits to monitor side effects and identify possible biomarkers. After a week, the ketamine treatment is finished while the standard antidepressant therapy continues. The participation in this trial is completed after three aditional weeks of follow-up.

Moving on After Breast Cancer Trial for Depressed Breast Cancer Survivors in Pakistan

Breast cancer is the most common cancer among women worldwide, and many survivors experience comorbid mental health conditions such as depression and anxiety, which can significantly worsen health outcomes and increase mortality. This large-scale trial in Pakistan aims to evaluate the clinical and cost-effectiveness of a three-stage adaptive intervention to manage depression among breast cancer survivors. Using a Sequential, Multiple Assignment, Randomised Trial (SMART) design, the study will recruit 26,372 participants aged 18 and above who have completed initial breast cancer treatment (surgery and/or chemotherapy or radiotherapy). Participants will be identified through primary care units, outpatient departments, oncology clinics in public hospitals, and charitable organisations across Pakistan. Depression will be screened using the Patient Health Questionnaire PHQ-9, with diagnosis confirmed by the Structured Clinical Interview Schedule of DSM (SCID). Those randomised to the intervention arm will receive adaptive interventions: starting with low-intensity guided self-help, followed by a high-intensity cognitive behavioural therapy-based programme called "Moving On After Breast Cancer Plus" (Moving on ABC Plus), and for non-responders, an additional pharmacological component will be introduced. Participants in both adaptive intervention and enhance usual care groups will be assessed at multiple time points-baseline, 6, 18, 30, and 48 weeks post-randomisation-using validated tools to measure depression (primary outcome), and anxiety, self-esteem, intrusive thoughts, health-related quality of life, satisfaction with services, and health resource use (secondary outcomes). The study will also include qualitative interviews and focus groups discussions with patients, caregivers, healthcare providers, and policymakers to identify barriers and facilitators to implementation and ensure the intervention is both contextually appropriate and scalable.

Biomarker Research on Ultra-High-Field MRI Combined With Visual Perception Assessment in the Diagnosis and Treatment Outcomes of Severe Mental Disorders

This is an observational study aiming to screen biomarkers associated with the diagnosis and treatment outcomes of severe mental disorders (MDD/major depressive disorder, SZ/schizophrenia, BD/bipolar disorder) through 7T ultra-high-field magnetic resonance multimodal imaging and visual perception assessment, thereby optimizing the objectivity and precision of clinical diagnosis and treatment. I. Core Research Objectives 1. Clarify the specific changes in visual perception behavior and brain imaging (metabolism, functional connectivity) of patients with severe mental disorders before and after treatment. 2. Establish a biomarker system related to disease diagnosis and treatment outcomes to make up for the limitation of current clinical reliance on phenomenological diagnosis. II. Study Subjects and Inclusion/Exclusion Criteria 1. Recruitment Scope * Patient group: MDD, SZ, and BD patients diagnosed in the Department of Psychiatry, the Second Affiliated Hospital of Zhejiang University School of Medicine. * Healthy control group: Healthy individuals without a history of mental illness recruited from the general population. 2. Key Criteria * Inclusion: Aged 18-45 years; meeting the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) diagnostic criteria (for the patient group); no organic brain injury or severe physical illness; signing the informed consent form. * Exclusion: Organic brain diseases; severe physical illnesses (e.g., tumors); internal metal implants (e.g., cardiac pacemakers); claustrophobia or inability to tolerate MR examinations; pregnancy, etc. III. Core Study Procedures 1. All participants will undergo 2 sessions of 7T MRI scans (including MRS, fMRI, and other multimodal sequences), focusing on the MT+ brain region and V1 brain region respectively, with the scan order randomly balanced. 2. During the interval between the two MRI scans, participants will complete visual psychophysical experiments, cognitive function tests (e.g., BDT test), and clinical symptom collection. 3. The study will not interfere with routine clinical treatment and strictly adheres to the ethical standards of the Second Affiliated Hospital of Zhejiang University School of Medicine (Ethical Approval No.: 2025 Lun Shen Yan Di 0603). IV. Study Significance 1. Provide objective biomarkers for clinical practice to improve the accuracy of diagnosis and the scientificity of treatment effect evaluation for severe mental disorders. 2. Reveal the association mechanism between visual cortex-related brain networks and diseases, laying a theoretical foundation for precision diagnosis and treatment.

A Study to Evaluate the Effectiveness of DT-101 in Patients With Depression

The goal of this clinical trial is to learn if DT-101 can treat depression in adults. The effect of DT-101 will be compared to placebo. Subjects will attend the clinic every couple of weeks complete general health checks and complete questionnaires.

ACP-211 Monotherapy for Major Depressive Disorder With Inadequate Antidepressant Response

The goal of this clinical trial is to learn if ACP-211 can help treat adults with major depressive disorder (MDD) who have not improved with antidepressant therapy (ADT), including those with treatment resistant depression (TRD). The main questions the study aims to answer are: * Does ACP-211 work better than a placebo (a look-alike capsule with no medicine) to reduce symptoms of depression? * What adverse events do participants have when taking ACP-211?

Accelerated Intermittent Theta Burst Stimulation for Adolescent and Young Adult Depression With Elevated Suicide Risk

The goal of this clinical trial is to learn if a fast-acting brain stimulation treatment called transcranial magnetic stimulation (TMS) can help people with depression and suicidal thoughts. The treatment is non-invasive (does not involve surgery or medications), is given over 5 days, and uses brain imaging (MRI) to guide which part of the brain to target. This study tests whether this treatment is a helpful and practical option for adolescents and young adults who are depressed and have suicidal thoughts. We want to see if: 1. This treatment is feasible and acceptable to patients 2. It can reduce depression and suicidal thoughts 3. It can lower the chance of going to the hospital 4. It affects daily functioning (school, work, relationships) All participants will undergo 5-days of TMS treatment and complete MRI brain scans before and after treatment. They will return for check-ups after 1 week and 4 weeks.

NUTRIBRAIN: Lifestyle Interventions to Prevent cOgnitive Deficits in Subjects With Depressive Symptoms: From mEchanisms to Clinical pRactice (POWER)

POWER project is a randomized, controlled, non-profit study with the primary objective of testing the effectiveness of non-pharmacological interventions-such as physical activity, cognitive training, and dietary supplementation-in reducing depressive symptoms and preventing or delaying cognitive impairments that frequently co-occur in individuals with Major Depressive Disorder (MDD).

LHC-CIDI-5 in Hong Kong

The World Health Organization Composite International Diagnostic Interview-5th (CIDI-5) is a standardized diagnostic tool used to assess the prevalence of mental and substance use disorders over varying time frames (30 days, 12 months, and lifetime) based on the diagnostic criteria outlined in the Diagnostic and Statistical Manual of Mental Disorders 5th edition (DSM-5) and International Classification of Diseases 10th edition (ICD-10). However, retrospective measurements like the CIDI-5 are susceptible to recall bias, especially for the lifetime experience, which can hinder the reporting accuracy with mental disorders. To mitigate this issue, the life history calendar (LHC) was introduced as an aid to assist respondents in recalling the timing of life events, enhancing the ability of the CIDI-5 to measure the lifetime prevalence of mental disorders. The LHC is a grid structure with columns representing time units and rows representing life domains under study. In a study conducted in Nepal, combining the CIDI-5 with the LHC resulted in a significant increase in the detection of mental disorders compared to using the CIDI-5 alone. This approach did not lead to an increase in false positives after clinical validation. This experiment aims to adapt a Hong Kong version of the LHC based on the Nepalese model and evaluate the effectiveness of the LHC-assisted CIDI-5 (LHC-CIDI-5) compared to the CIDI-5 alone in assessing mental disorders.

A Study to Assess the Skin Irritation and Sensitization of Selegiline TDS in Healthy Subjects

The two products used in this study are transdermal patches that contain selegiline. The test drug is the Selegiline Transdermal Delivery System (TDS). The comparator drug is the EMSAM® TDS. The purpose of this research study is to compare how the skin tolerates the test TDS and the comparator TDS. The study will evaluate and compare skin irritation and possible allergic-type skin reactions (sensitization) caused by the two products. The comparison will be based on how the skin responds to repeated applications of each TDS. This includes the assessment of skin irritation during the Induction Period and the evaluation of possible allergic or sensitization reactions after the Challenge Period. In addition, the adhesion of each patch (how well the patch sticks to the skin over time) will be regularly checked, as this is important for both product performance and skin safety.

Brain Network Mechanisms of Cognitive Impairments in Major Psychiatric Disorders and Their Clinical Applications

Previous and our studies have shown that cognitive impairments are core symptoms of three major psychiatric disorders-schizophrenia, bipolar disorder, and major depressive disorder, and are associated with underlying brain dysfunction. However, the specific brain networks involved in cognitive impairments (cognitive impairment brain networks) in these disorders, as well as whether their neuroimaging features can be applied to cognitive assessment, diagnosis, and precision treatment, remain unclear. This study aims to identify cognitive impairment brain networks using publicly available large-scale datasets and clinical research, and to explore whether the neuroimaging features of these networks can be utilized for cognitive assessment, diagnosis, and treatment response prediction. First, a "sensitive cognitive assessment model for major psychiatric disorders" will be established through meta-analysis based on sensitive scales. Second, cognitive impairment brain networks will be identified using publicly available large-scale datasets combined with the lesion network mapping method, and their validity will be examined by assessing their non-randomness, reproducibility, symptom specificity, and disease specificity. Third, cognitive assessment and diagnostic models will be developed based on neuroimaging features of these networks. Finally, a combination of cross-sectional and longitudinal study designs will be used in a clinical trial to validate the identified networks and models, and a treatment response prediction model will be established based on the neuroimaging features of cognitive impairment brain networks. This study will advance the understanding of the neurophysiological mechanisms underlying cognitive impairment in major psychiatric disorders, promote the application of neuroimaging in psychiatric diagnosis and treatment, and improve traditional diagnostic, therapeutic, and cognitive assessment approaches.

Pattern Separation in Major Depressive Disorder

This study seeks to examine the effects of treatment with a selective serotonin reuptake inhibitor (SSRI), escitalopram, a first-line treatment for depression, in combination with placebo or with extended-release memantine, on neuropsychological function, regional brain activity assessed by functional magnetic resonance imaging, and depressive symptoms, in participants with Major Depressive Disorder. Escitalopram is administered in an open-label fashion in this study; extended release memantine is administered in a double-blind, randomized, placebo-controlled manner.

Evaluation of Efficacy and Safety of Milsaperidone as Adjunctive Therapy in Patients With Major Depressive Disorder

The purpose of this study is to determine the efficacy and safety of milsaperidone compared to placebo as adjunctive therapy in patients with Major Depressive Disorder

Neuroimaging Markers of Midlife Depression and Cognitive Behavioural Therapy (CBT)

Major depressive disorder (MDD) is associated with significant cognitive impairment throughout the life-course, which may progress toward MCI and dementia with age. Antidepressant medications are the first line of treatment; however, they fail to adequately address cognitive deficits and prevent relapse. Sustained cognitive impairment into euthymic periods may relate to underlying neurobiological changes, which could potentially be addressed through Cognitive Behavioural Therapy (CBT). Notably, CBT has been shown to improve cognitive domains including divided attention, memory, and processing speed while preventing depression relapse. Midlife represents a critical period in which shared neurobiological factors (such as brain changes on a vascular, morphological, and functional level) underlying depression and cognitive impairment could accelerate toward MCI and dementia. An updated understanding of neurobiological correlates of midlife depression and CBT response through multimodal neuroimaging is critical to improving affective and cognitive outcomes in this population. The overarching objective of this project is to use multimodal neuroimaging to quantify the neurobiological and clinical impact of CBT in midlife depression. Specifically, we aim to: 1. Investigate the clinical impact of CBT on cognitive function and mood outcomes in midlife depression 2. Examine functional connectivity and microstructural determinants of CBT response in midlife depression using neuroimaging 3. Identify vascular modulators of neural connectivity and CBT response in midlife depression. We hypothesize that midlife depression will be associated with functional and structural neural connectivity changes, which will be accompanied by vascular pathology. Adequate CBT response (i.e., improvements in mood and cognitive function) will be associated with amelioration of neurobiological changes.

Imaging- vs. Scalp-Targeted Accelerated TMS for Depression: The Number Needed to Scan Trial

Transcranial magnetic stimulation(TMS) is a non-invasive form of brain stimulation that is cleared by the United States Food and Drug Administration (FDA) for depression. Conventional TMS involves daily weekday treatments for 6-8 weeks. These treatments are targeted using each person's scalp measurements. With conventional TMS, approximately 50-55% of people show a 50% or more improvement in depressive symptoms (in other words, they "respond" to treatment). Studies are trying to make TMS work better and faster. A new form of TMS called accelerated TMS (aTMS) involves mutliple treatments a day. One specific aTMS protocol involves 10 treatments per day for 5 days. These treatments are targeted using each person's brain scan (magentic resonance imaging, MRI). With this specific aTMS protocol, approximately 70-90% of people show a 50% or more imporvement in depressive symptoms. While these results are exciting, scientists are not sure why this specific aTMS protocol works better than conventional TMS. It could be the dose and schedule of treatment, or it could be the MRI-based targeting. Answering this question is important because MRI-based targeting is expensive and difficult to do in many settings. This study aims to determine if MRI-based targeting is better than scalp-based targeting for aTMS for depression. In this study, everyone who enrolls and meets criteria will be randomly assigned to MRI- versus scalp-based aTMS targeting.