Bipolar Disorder

92

Review clinical trials related to Bipolar Disorder. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

The Effect of Comorbid Alcohol/Substance Use

Study Design This study was designed as a comparative, cross-sectional case-control study examining the effect of comorbid alcohol and substance use disorder (ASUD) on clinical course and social inclusion among individuals with severe mental illness followed at a Community Mental Health Center (CMHC). The study did not involve any interventions. Aim The aim of this study is to examine the effect of comorbid alcohol and substance use on clinical course parameters-such as number of hospitalizations and medication dosages-and on social inclusion indicators-such as employment, social participation, and social adjustment-among individuals with severe mental illness followed at the CMHC, in comparison with a matched control group without substance use. Research Questions What are the rates of comorbid alcohol and substance use among patients with severe mental illness followed at the CMHC? What are the current addiction symptoms, number of hospitalizations, and employment rates among individuals with severe mental illness and comorbid ASUD? What is the level of continuity of CMHC engagement and social participation among individuals with severe mental illness and comorbid ASUD, and what factors influence it? How does the level of social inclusion among individuals with severe mental illness and comorbid ASUD compare with that of individuals without ASUD? Hypotheses H1: The average annual number of hospitalizations among individuals with a dual diagnosis (severe mental illness + ASUD) followed at the CMHC is significantly higher than among those without substance use. H2: Among individuals with a dual diagnosis, the daily medication doses (e.g., chlorpromazine equivalents) required to control psychotic or manic symptoms are higher than in the control group. H3: Social inclusion is lower among patients with substance use compared with the control group. H4: Employment rates among individuals with a dual diagnosis are significantly lower than among those with severe mental illness alone. H5: Substance use negatively affects patients' social participation, including involvement in activities and friendships. H6: Attendance rates at CMHC workshops and rehabilitation programs are lower among individuals with substance use compared with the control group.

Participants needed: 297
Trial details
Age: 18-65Biological sex: AllType: ObservationalSponsor: Abant Izzet Baysal UniversityUpdated: Jul 13, 2026Locations: 1
Eligibility criteria

Being 18 years of age or older, [+2]

Individuals diagnosed with organic brain damage or neurodevelopmental disorders... [+1]

Status: Not yet recruiting

Evaluating the Impact of Ketogenic Therapy on Symptom Severity and Metabolic Side Effect Profile Among Individuals Living With Bipolar Disorder in A Rural Southern Catchment Area

It is the purpose of this pilot study to evaluate a high-fat/low-carbohydrate "ketogenic" diet-based intervention as an adjunctive strategy for impacting symptoms of bipolar disorder. The study is designed to evaluate this impact in the rural southern catchment area around Montgomery, Alabama. While existing access and cost barriers can prevent effective treatment of bipolar disorder in the rural south, using food as medicine represents a possible alternative/adjunctive to traditional high-cost/low-access medications. Specifically, this study will evaluate the impact of combining a ketogenic diet with existing treatment options, under the conditions of the rural catchment area, to determine the impact and efficacy of this intervention at patient and systems levels. If effective, the interventions examined in this pilot study may increase the efficacy, availability and access to care experienced by individuals living with bipolarity in the rural Deep South.

Participants needed: 100
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: University of Alabama at BirminghamUpdated: Jul 2, 2026Locations: 1
Eligibility criteria

Age >18 [+1]

Acute psychiatric instability (manic episode, active suicidality requiring hospi... [+4]

Status: Recruiting

Premorbid Personality Profile of Patients With Cognitive and Behavioral Disorders

Damages in frontal area present in neurodegenerative disease (frontotemporal degeneration, frontal variant of Alzheimer disease) and in psychiatric disease (bipolar disorder) can affect behavior and cognition including social cognition. Symptoms vary both quantitatively and qualitatively from disease to another and from person to person. It cannot be completely excluded that in some cases, factors of susceptibility such as premorbid personality traits lead to frontal fragility. The study will assess the relationship between premorbid profile using NEO-PI 3 inventory and cognitive and behavioral/psychobehavioral manifestations in patients with behavioral variant of frontotemporal disorder (bvFTD), phenocopy frontotemporal dementia (phFTD), frontal variant of Alzheimer disease, bipolar disorder characterized with frontal damages.

Participants needed: 120
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Nantes University HospitalUpdated: Jun 29, 2026Locations: 1
Eligibility criteria

Patients with behavioral variant of frontotemporal disorder (bvFTD) according to... [+3]

Patient with no caregiver [+1]

Status: Recruiting

Evaluation of Patients With Mood and Anxiety Disorders and Healthy Volunteers

The purpose of this protocol is to allow for the careful screening of patients and healthy volunteers for participation in research protocols in the Experimental Therapeutics and Pathophysiology Lab (ETPB) at the National Institute of Mental Health (NIMH) and for the collection of natural history data. In addition the protocol will allow clinicians to gain more experience in the use of a variety of polysomnographic and high-density EEG recordings. Subjects in this protocol will undergo an evaluation which may include: a psychiatric interview; a diagnostic interview; rating scales; a medical history; a physical exam; brain magnetic resonance imaging (MRI); electroencephalography (EEG); electrocardiography (EKG), magnetoencephalography (MEG); blood, saliva and urine laboratory evaluation; and a request for medical records. Subjects may also be asked to complete questionnaires about attitudes towards research and motivation for research participation. The data collected may also be linked with data from other mood and anxiety disorder protocols (e.g., brain imaging, DNA, psychophysiology tests, treatment studies, etc) for the purposes of better understanding the diagnosis, pathophysiology, and treatment response of patients with mood disorders. Parents of minors will be interviewed. Upon conclusion of the screening process, subjects will either be offered participation in a research protocol and will sign the appropriate informed consent, or will be considered not appropriate for participation in research and will be referred back into the community. The current protocol thus serves as an entry point for individuals with mood or anxiety disorders or healthy volunteers to enter NIMH IRB approved ETPB protocols.

Participants needed: 16,000
Trial details
Age: 3-99Biological sex: AllType: ObservationalSponsor: National Institute of Mental Health (NIMH)Updated: Jun 25, 2026Locations: 1
Eligibility criteria

Subjects ages 3 to 99 may enroll in the protocol. [+1]

Status: Recruiting

A Study to Evaluate the Efficacy and Safety of Adjunctive KarXT for the Treatment of Mania, With or Without Mixed Features, in Participants With Bipolar-I Disorder Taking Lithium, Valproate, or Lamotrigine

The purpose of this study is to evaluate the efficacy and safety of adjunctive KarXT for the treatment of mania in participants with Bipolar-I Disorder.

Participants needed: 424
Trial details
Phase: Phase 3Age: 18-65Biological sex: AllType: InterventionalSponsor: Bristol-Myers SquibbUpdated: Jun 23, 2026Locations: 104
Eligibility criteria

Individuals have a primary diagnosis of Bipolar-I disorder established by a comp... [+5]

Any primary DSM-5-TR disorder other than BP-I within 12 months before screening... [+8]

Status: Recruiting

A Study of Brenipatide in Adult Participants With Bipolar Disorder (RENEW-Bipolar-1)

The purpose of this study is to assess the efficacy and safety of brenipatide when administered with standard of care (SoC), compared with placebo plus SoC in delaying the worsening of bipolar disorder symptoms. The trial is divided into three periods as follows: Screening period that will last approximately 1 month, treatment period that will last a minimum of 6 months, and the follow up period that will last approximately 2 months. The duration of study participation may vary and may be shortened if bipolar symptoms worsen or if withdrawal from the study occurs for any reason.

Participants needed: 400
Trial details
Phase: Phase 2Age: 18-75Biological sex: AllType: InterventionalSponsor: Eli Lilly and CompanyUpdated: Jun 23, 2026Locations: 87
Eligibility criteria

Meet the diagnostic criteria for bipolar disorder I or bipolar disorder II [+6]

schizophrenia or other psychotic disorder [+8]

Status: Recruiting

NIMH Rhythms and Blues Study: A Prospective Natural History Study of Motor Activity, Mood States, and Bipolar Disorder

Background: Mood disorders, such as bipolar disorder, can have serious effects on a person s life. People with bipolar disorder are more likely to have heart disease and abuse substances. In this natural history study, researchers would like to learn more about the connection between exercise and mental health in people with and without mood disorders. Objective: To better understand relationships among physical activity, sleep, and mental health. Eligibility: People aged 8 to 60 years with a history of a mood disorder. Healthy spouses and relatives with no mood disorders are also needed. Design: Participants will be in the study up to 2 years. For up to 20 days in a row, at 4 times during the study, participants will: Complete an electronic diary on their smartphone. Participants will answer questions about their mood, health, sleep, and daily activities. Wear an activity monitor, like a wristwatch, that records how much they move. Wear a light sensor, as a necklace, to record the amount of light in their environment. Some participants will do additional tests. Twice during the study, for 3 days in a row, they will: Wear monitors to record their temperature, heart rate, and sleep. Provide saliva samples. Complete cognitive tasks on their smartphone. Participants will visit the NIH clinic 2 times. They will have a physical exam, with blood and urine tests. They will wear a heart monitor. They will ride a stationary bike for 30 minutes. They may have an imaging scan. Some participants will stay overnight. They will go to sleep wearing a cap to measure their brain activity.

Participants needed: 1,260
Trial details
Age: 8-70Biological sex: AllType: ObservationalSponsor: National Institute of Mental Health (NIMH)Updated: Jun 22, 2026Locations: 1
Eligibility criteria

Stated willingness to comply with all study procedures and availability for the... [+7]

Pregnancy [+1]

Status: Recruiting

A Study to Evaluate the Effectiveness of Valbenazine in Adult Participants With Tardive Dyskinesia (TD) Who Remain Symptomatic While Receiving or After Stopping a Vesicular Monoamine Transporter 2 (VMAT2) Inhibitor

This study will evaluate the efficacy of valbenazine on clinician- and patient-reported outcomes in participants with TD while receiving or after stopping a VMAT2 inhibitor.

Participants needed: 50
Trial details
Phase: Phase 4Age: 18+Biological sex: AllType: InterventionalSponsor: Neurocrine BiosciencesUpdated: Jun 16, 2026Locations: 22
Eligibility criteria

18 years of age or older [+2]

Have comorbid Parkinsonism or abnormal involuntary movement(s) that is more prom... [+2]

Status: Recruiting

A Randomized Study of Azetukalner Versus Placebo in Depressive Episodes Associated With Bipolar I or II Disorder (Bipolar Depression)

X-CEED is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of azetukalner in adult participants diagnosed with bipolar I or II disorder who are currently in a depressive episode (bipolar depression).

Participants needed: 400
Trial details
Phase: Phase 3Age: 18-74Biological sex: AllType: InterventionalSponsor: Xenon Pharmaceuticals Inc.Updated: Jun 3, 2026Locations: 28
Eligibility criteria

Adults ≥18 and ≤74 years of age who experienced their first major depressive epi... [+3]

Participant has any type of major depressive disorder (MDD) diagnosis, including... [+11]

Status: Recruiting

Personalized Mobile Cognitive Behavioral Therapy Application

This study aims to compare the effectiveness of a standard mobile cognitive behavioral therapy program to a personalized mobile cognitive behavioral therapy program that introduces new skills over a shorter period of time. Participants will use the Maya app for two days per week, at least 20 minutes per day, for six weeks. Assessments will include a weekly check in with a member of the research team, questionnaires, and optional electroencephalographic (EEG) recordings at the beginning and end of the 6-week intervention. The investigators think that that the less burdensome personalized program will be just as effective at improving symptoms of anxiety and depression as the general program.

Participants needed: 100
Trial details
Age: 18-25Biological sex: AllType: InterventionalSponsor: Weill Medical College of Cornell UniversityUpdated: May 22, 2026Locations: 1
Eligibility criteria

Age between 18 and 25 years. [+3]

History of neurologic disorder that may affect the neural systems of interest or... [+6]

Status: Recruiting

Immuno-Genetic, Inflammation, Retro-Virus, Environment

Immunology combined to neurobiology now offer prominent tools to yield biomarkers, so far missing in psychiatry, and to design innovative treatment approaches based on the discovery of new molecular and cellular targets. As Bipolar Disorder and Schizophrenia are now known to be significantly associated with neuro-inflammation, the project I-GIVE will combine multidisciplinary approaches (clinical, viral, immunological, genetic) to explore a global hypothesis placing the Human Endogenous Retro-Virus, HERV-W, at the crossroads between susceptibility to environmental factors (such as winter-spring births, infections, urbanicity…) and genetic factors controlling immune responses. Thus I-GIVE will allow identification of new biomarkers and their correlation with clinical profiles and immuno-inflammatory/immuno-genetic markers, and description of patho-physiological mechanisms of a psychiatric disorder. In addition, I-GIVE should help to design innovative treatments and foster personalized psychiatry tailored to the needs of each patient. Notably, monoclonal antibodies anti-HERV-W Env will be assessed in a preclinical model for their ability to slow, stop, or even reverse the progression of the psychosis in patients. I-GIVE project should thus lead to major results that will have strong impacts on the scientific community, pharmaceutical industries and, in a longer term, on improvement of patients suffering Bipolar Disorder or Schizophrenia and their family.

Participants needed: 1,100
Trial details
Age: 16+Biological sex: AllType: InterventionalSponsor: Pr. Marion LeboyerUpdated: May 22, 2026Locations: 6
Eligibility criteria

Bipolar disorder or Schizophrenia (according to Diagnostic and Statistical Manua...

pregnant women [+5]

Status: Recruiting

Correcting Circadian Rhythms to Breakthrough in Bipolar Disorder

The purpose of this study is to test whether a dietary supplement (low-dose melatonin) commonly used to treat night owls, administered in conjunction with a behavioral sleep intervention, will help to shift the brain clock earlier and improve mood and sleep in bipolar disorder. Eligible participants will be randomized to receive melatonin plus a behavioral sleep intervention or placebo plus a behavioral sleep placebo. The hypotheses for this study include: * Melatonin plus behavioral sleep intervention (compared to placebo plus behavioral sleep placebo) will produce a greater advance of dim light melatonin onset (DLMO), between pre- and post-treatment. * Melatonin (compared to placebo) will produce a greater reduction in Patient Health Questionnaire-9 score between pre- and post-treatment.

Participants needed: 50
Trial details
Phase: Phase 2Age: 18-60Biological sex: AllType: InterventionalSponsor: Leslie SwansonUpdated: May 11, 2026Locations: 1
Eligibility criteria

Capable of giving informed consent [+7]

Insomnia per DSM-5 [+25]

Status: Recruiting

The Impact of AMPA Receptor Blockade on Ketamine's Anti-Suicidal Effects

The purpose of this study is to test the hypothesis that the anti-depressant and anti-suicidal effects of the N-methyl-D-aspartate receptor (NMDAR) antagonist Ketamine is critically dependent on stimulation of Alpha-Amino-3-Hydroxy-5-Methyl-4-Isoxazole Propionic Acid receptors (AMPAR).

Participants needed: 30
Trial details
Phase: Phase 2Age: 21-65Biological sex: AllType: InterventionalSponsor: Yale UniversityUpdated: May 6, 2026Locations: 1
Eligibility criteria

Current depression as indicated by a score greater than 17 on the full Hamilton... [+11]

A score on the Columbia-Suicide Severity Rating Scale [43] in the "intent" or "i... [+28]

Status: Recruiting

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.

Participants needed: 320
Trial details
Age: 18-45Biological sex: FemaleType: ObservationalSponsor: Second Affiliated Hospital, School of Medicine, Zhejiang UniversityUpdated: Apr 28, 2026Locations: 1Duration: 4 Weeks
Eligibility criteria

Participants aged 18 to 45 years old at the time of enrollment [+5]

History of head injury or brain diseases such as epilepsy [+4]

Status: Recruiting

Identifying Cerebral Hemodynamic Patterns in Mood Disorders and Mild Cognitive Impairment: A Functional Near-Infrared Spectroscopy (fNIRS) Study

The purpose of this research is to measure brain activity in individuals with mood disorders and memory problems using a simple, safe, and noninvasive method called functional near-infrared spectroscopy (fNIRS). By comparing brain activity across different groups and relating it to symptom severity, this study aims to improve our understanding of how these conditions affect the brain.

Participants needed: 200
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Mayo ClinicUpdated: Apr 29, 2026Locations: 1
Eligibility criteria

18 years and older [+9]

Active primary psychotic or substance use disorders (except nicotine dependence)... [+9]

Status: Not yet recruiting

A Study Of Senyo Health With Comorbid Alcohol Use Disorder Treatment In Bipolar Patients

The purpose of this study is to examine the effectiveness of a digital integrated behavioral health (IBH) platform in improving substance use outcomes, including treatment retention and substance use frequency and severity in patients with Bipolar Disorder.

Participants needed: 40
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Mayo ClinicUpdated: Apr 29, 2026Locations: 1
Eligibility criteria

History of bipolar I disorder, bipolar II disorder, or schizoaffective disorder... [+5]

Diagnosed personality pathology as the primary presenting concern based on clini... [+6]

Status: Recruiting

mHealth Estimate-based Algorithms Signaling Upcoming Recurrence of Episodes in Bipolar Disorders

Veterans with bipolar disorders (BD) experience recurrent and seemingly unpredictable periods of severe impairments in psychosocial functioning, such as participation in social roles and activities. Many effective treatments for BD emphasize early detection of bipolar episodes, in order to make necessary treatment adjustments and prevent psychosocial impairments associated with acute mood episodes. Unfortunately, acute mood episodes in BD are also associated with a decrease in a patient's insight into their own symptoms, which can prevent one's ability to self-report first signs of symptoms and functional declines. Moreover, routine care visits for BD are typically too infrequent to capture and effectively monitor day-to-day changes in a patient's mood and functioning. Objective, low-effort, and continuous methods of tracking symptoms and social participation of Veterans with BD in real-time and in-situ are needed to provide early (i.e., days in advance) warning signs of acute bipolar episodes and functional declines, which in turn would enable well-timed interventions to prevent poor psychosocial outcomes. mHealth refers to the use of mobile and wireless devices as part of patient care and offers many potential opportunities for early detection of and intervention for acute mood states in this population. However, these mHealth approaches have not been investigated in Veterans with BD. In a Small Projects in Rehabilitation Research (SPiRE)-funded pilot study, the investigator team established high feasibility and acceptability of one such innovative passive mHealth approach using a smartphone program, or an app, in a small sample of Veterans with BD to track their smartphone's GPS/location. The pilot study used a priori location context ratings of visited places (e.g., a priori ratings on types of activities usually engaged in at a frequently visited location) to derive unobtrusive measures of social participation (e.g., time spent at work-related locations). The goal of this Merit Review proposal is to establish reliable and valid machine-learning algorithms using the same types of mHealth data to prospectively (days in advance) detect declines in social participation and prospective onset of mania and depression in Veterans with BD. This proposal has three aims: Aim 1. To establish a machine learning algorithm using GPS/location data for predicting prospective declines in social participation in Veterans with BD. Aim 2. To establish machine learning algorithms using GPS/location data for predicting prospective acute BD clinical states. The investigators will explore whether adding more burdensome daily self-report and voice diaries' speech analysis features improves the models' precision using statistical indices of prediction precision or accuracy. Aim 3. To explore clinical implementation of the mHealth-based algorithms in treatment of BD. Focus groups of VA providers and administrators will assess feasibility of algorithms' implementation in clinical care.

Participants needed: 200
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: VA Office of Research and DevelopmentUpdated: Apr 24, 2026Locations: 1
Eligibility criteria

Veteran participants will have a confirmed primary diagnosis of a Bipolar I Diso... [+6]

Presence of a major neurocognitive disorder or neurological disorder, such as Al... [+4]

Status: Not yet recruiting

Venous Tourniquet vs. Arterial Tourniquet for Seizure Monitoring in ECT

This prospective, open-label clinical trial aims to compare a novel "Venous Tourniquet with Regional Low-Dose Sugammadex" method against the gold standard "Arterial Tourniquet" (Isolated Forearm Technique - IFT) for monitoring motor seizure activity during Electroconvulsive Therapy (ECT). Using a within-subject (intra-individual) design, each of the 40 enrolled patients will receive an arterial tourniquet on one arm and a venous tourniquet on the other arm simultaneously. The study will evaluate clinical efficacy in observing motor seizures, comparing the duration and visibility between the two limbs of the same patient, as well as assessing overall patient comfort and hemodynamics.

Participants needed: 20
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: Medipol UniversityUpdated: Apr 21, 2026Locations: 1
Eligibility criteria

Patients scheduled for elective Electroconvulsive Therapy (ECT). [+1]

Known neuromuscular diseases (e.g., Myasthenia Gravis). [+3]

Status: Not yet recruiting

Enhancing Veteran-Clinical Collaboration in VA PRRCs

Over 60% of Veterans with serious mental illness have a service-connected disability that impairs their ability to work, go to school, and/or have successful personal lives. Although traditional treatments tend to focus on symptom remission, Veterans prioritize a range of treatment goals, including personal empowerment and gaining personally meaningful skills. Increasing Veteran-clinician collaboration can help effectively align care with each Veteran's goals and support an empowering therapeutic experience. This project will evaluate the effectiveness of a group-based intervention intended to increase Veterans' comfort, confidence, knowledge, and skills to collaborate with their treatment teams. Findings from this study will contribute important knowledge about this intervention's effectiveness and how to enhance its effectiveness, especially for Veterans from minoritized groups. If the decision-making intervention is effective, it would help Veterans with serious mental illness, and might also help Veterans with other chronic health conditions, like PTSD and chronic pain.

Participants needed: 119
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: VA Office of Research and DevelopmentUpdated: Apr 15, 2026Locations: 3
Eligibility criteria

be a Veteran currently receiving PRRC, MHICM and/or BHIP services at VA San Dieg... [+4]

primary substance use or organic neurological disorder diagnosis determined by c... [+2]

Status: Recruiting

Use of Ketosis in Modulating Metabolic Pathways in Bipolar Disorder

The goal of this clinical trial is to test how specific components of diet affect brain function and behavior for individuals with bipolar. The main question it aims to answer is how glucose and ketones each affect the brain's response to risk and reward. Participants will be asked to provide blood (to assess baseline measures of how the body uses energy), and then to receive two MRI scan sessions, on separate days. During each MRI scan session, participants will play three games, from which they can win money, before and after drinking glucose (on one day) or ketones (on the other day). Investigators will compare individuals with and without bipolar to test whether the two groups differ in how their brains use energy, and to test how the brain's use of energy affects behavior.

Participants needed: 100
Trial details
Age: 18-45Biological sex: AllType: InterventionalSponsor: Stony Brook UniversityUpdated: Apr 15, 2026Locations: 3
Eligibility criteria

Bipolar disorder diagnosis: Patients must have a Diagnostic Statistical Manual (... [+25]

Status: Not yet recruiting

Functional Magnetic Resonance Imaging Study of Inhibitory Control in Bipolar Disorder and Major Depressive Disorder

Bipolar disorder and unipolar depressive disorder are two chronic mood disorders associated with a significant social impact, even during euthymic phases. Their differential diagnosis remains complex, particularly when bipolar disorder begins with a depressive episode. Identifying distinctive markers between these pathologies therefore represents a major clinical and economic challenge, as appropriate mood-stabilizing treatment can reduce healthcare costs and improve patients' functional outcomes. Among potential biomarkers, executive functions-and more specifically inhibition-have received particular attention. Inhibitory deficits are observed in both disorders, including during euthymic states, and also among first-degree relatives, suggesting their potential as cognitive and cerebral endophenotypes. These deficits may help explain the difficulties in emotion regulation and impulsivity frequently observed in mood disorders. Two components of inhibition are distinguished: 1. Behavioral inhibition, which refers to the ability to stop an ongoing response. 2. Interference control, which refers to the ability to resist distraction. These processes rely on partially distinct neural networks and operate at different stages of information processing. The few studies comparing these two components in bipolar disorder have shown contradictory results, and neuroimaging investigations have only partially explored these mechanisms, particularly their emotional dimension. It is, however, well established that patients with bipolar or depressive disorders show greater difficulties in executive tasks involving emotional stimuli than in purely cognitive tasks. The study is expected to reveal: * Differences in brain activation between euthymic bipolar and unipolar depressive patients in regions involved in inhibitory control, modulated by the emotional content of the task. * Distinct cognitive performance profiles according to pathology, reflecting specific alterations in inhibitory and interference processes. These findings should provide a better understanding of the differential neurocognitive bases of mood disorders. Identifying specific cognitive and neural profiles could contribute to more accurate differential diagnosis and to the personalization of therapeutic interventions, particularly through cognitive remediation strategies targeting executive and emotional deficits.

Participants needed: 120
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: CHU de ReimsUpdated: Mar 31, 2026Locations: 1
Eligibility criteria

Patients between 18 and 65 years old, men or women, right-handed [+5]

The presence of any alcohol use disorder or any other substance use disorder in... [+13]

Status: Recruiting

Assessing the Impact of Cannabidiol for Anxiety and Depression in Bipolar Disorder

Preliminary data have suggested that cannabidiol (CBD) may have a number of clinical benefits, including anti-anxiety and antidepressant properties. This study is a pilot open-label clinical trial assessing a custom-formulated high-CBD product over the course of 4 weeks in patients with bipolar disorder who experience anxiety.

Participants needed: 25
Trial details
Phase: Phase 2Age: 18-65Biological sex: AllType: InterventionalSponsor: Mclean HospitalUpdated: Mar 30, 2026Locations: 1
Eligibility criteria

Provides informed consent [+5]

Not fluent in English [+13]

Status: Recruiting

Theta-Burst Stimulation for Bipolar Depression

The purpose of this trial is to determine if intermittent theta-burst stimulation (iTBS) can reduce the symptoms of depression in treatment-resistant bipolar disorder. To do this, some of the participants in this study will receive treatment with active iTBS stimulation, while others will receive sham iTBS stimulation. Participants will come for 30 days of either active iTBS or sham iTBS, with a 6-week follow-up period. Symptoms of depression (for determining treatment efficacy) and mania (for determining treatment safety) will be assessed using the 17-item Hamilton Rating Scale for Depression (HRSD-17) and the Young Mania Rating Scale (YMRS) every five treatments during the treatment course, and at 1 week and 6 week after treatment completion.

Participants needed: 124
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: Centre for Addiction and Mental HealthUpdated: Mar 18, 2026Locations: 2
Eligibility criteria

Must be deemed to have capacity to provide informed consent; [+9]

have a history of MINI diagnosis of a substance use disorder (other than nicotin... [+14]

Status: Recruiting

Cerebellar Stimulation and Cognitive Control

The purpose of this study is to examine whether cerebellar stimulation can be used to improve cognitive deficits and mood in patients with schizophrenia, autism, bipolar disorder, Parkinson's disease, and major depression.

Participants needed: 200
Trial details
Age: 18-90Biological sex: AllType: InterventionalSponsor: Krystal Parker, PhDUpdated: Mar 19, 2026Locations: 1
Eligibility criteria

A clinical diagnosis consistent with enrollment

History of recurrent seizures or epilepsy [+14]

Status: Not yet recruiting

Empagliflozin Adjunctive Therapy in Bipolar Depression

Bipolar disorder is a long-term mental health condition that causes mood changes, with depressive episodes being the most frequent and disabling. Many people do not fully recover with current treatments, showing the need for new therapeutic options. Recent research shows that insulin resistance (IR), a condition in which the body does not respond well to insulin, is common in people with bipolar disorder. It is linked to more severe mood symptoms, poorer treatment response, and higher risk of heart disease. IR may raise inflammation and affect how the brain uses energy, which can influence mood regulation. Empagliflozin is a medicine approved for type 2 diabetes. In addition to its metabolic and heart benefits, studies suggest that it may also protect the brain and reduce inflammation, possibly helping to improve mood. This open-label, proof-of-concept clinical trial will test how well empagliflozin works and how safe it is as an add-on treatment for people with bipolar depression and insulin resistance. A total of 20 adults with bipolar disorder type I or II, currently in a depressive episode, will take part in the study over a 12-week period. The main goal is to see whether empagliflozin can lower depressive symptoms, measured with the Montgomery-Åsberg Depression Rating Scale (MADRS). Other measures include changes in insulin resistance and incidence of adverse events. The study aims to explore whether improving insulin resistance can help both mood and metabolic health in people with bipolar disorder, guiding future clinical research.

Participants needed: 20
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: University of Sao PauloUpdated: Mar 16, 2026Locations: 1
Eligibility criteria

Adults aged 18 to 65 years. [+5]

History of hypersensitivity to empagliflozin or any SGLT2 inhibitor. [+7]