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13 clinical studies listed.

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Bipolar II Disorder

Tundra lists 13 Bipolar II Disorder clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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RECRUITING

NCT06696755

A Study to Assess Adverse Events and Change in Disease Activity of Oral Icalcaprant in Adult Participants With Bipolar I or II Disorder

Bipolar disorder is a severe chronic mood disorder that affects up to 4% of the adult population and 1.8% of the pediatric population in the United States. This study will assess how safe and effective Icalcaprant is in treating adult participants with bipolar I or II disorder. Icalcaprant is an investigational drug being developed for the treatment of depressive episodes in adult participants with bipolar I or II disorder. Participants are placed in 1 of 3 groups, called treatment arms. There is a 1 in 3 chance that a participant will be assigned to a placebo. Around 195 adult participants with bipolar I or II disorder will be enrolled in approximately 35 sites across the United States of America. Participants will receive oral capsules of Icalcaprant or matching placebo once daily for 6 weeks, with a 4-week safety follow-up period. There may be a higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-04-06

13 states

Bipolar I Disorder
Bipolar II Disorder
ENROLLING BY INVITATION

NCT07217860

An Open-label Study of Azetukalner in Bipolar I or II Depression (X-CEED-OLE)

X-CEED-OLE is a Phase 3, multicenter, open-label study to evaluate the long-term safety, tolerability, and efficacy of azetukalner in adult participants who successfully completed an antecendent Phase 3 azetukalner bipolar depression study.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-04-03

7 states

Bipolar Depression
Bipolar I Disorder
Bipolar Disorder
+1
RECRUITING

NCT07172516

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).

Gender: All

Ages: 18 Years - 74 Years

Updated: 2026-04-01

14 states

Bipolar Disorder
Bipolar Depression
Bipolar I Disorder
+1
ACTIVE NOT RECRUITING

NCT03484494

Low Field Magnetic Stimulation: Imaging Biomarkers in Geriatric Bipolar Depression

The protocol involves functional Magnetic Resonance Imaging acquisitions immediately before and after Low Field Magnetic Stimulation treatment on two separate days in a sham controlled, randomized trial, in order to assess the physiologic effects of Low Field Magnetic Stimulation on brain function in a geriatric population with bipolar depression.

Gender: All

Ages: 50 Years - Any

Updated: 2026-03-23

1 state

Bipolar Disorder
Bipolar Depression
Bipolar I Disorder
+1
RECRUITING

NCT06184581

Lithium Versus Lamotrigine in Bipolar Disorder, Type II

The investigators want in a 6-month randomized controlled trial (RCT) to compare effects of lithium versus lamotrigine on mood stabilization and other critical patient outcomes in patients with BDII.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-03-20

Bipolar II Disorder
RECRUITING

NCT07213466

Individualized Pharmacological Approach to Obesity in Patients With Bipolar Disorder

The goal of this clinical trial is to identify the specific characteristics (phenotypes) that may be useful to help select the right medication for weight loss, and to study the effect of individualized guided medication in patients with bipolar disorder ages 18-65. The main questions it aims to answer are: * Can the investigators compare the distribution of obesity characteristics (hungry brain, hungry gut, emotional hunger) between bipolar patients and non-bipolar participants (comparing from IRB #24-002375)? * Can the investigators evaluate the feasibility of anti-obesity medication (AOM) in patients with bipolar disorder? Participation will last for about 20 weeks and includes 8 in-person study visits, up to 11 phone call visits, and 13 virtual group therapy sessions. The first visit lasts about 2 hours and includes going over the informed consent form, a diagnostic interview to confirm diagnosis, gathering vital signs, mood questionnaires, an ECG, a blood draw, and urine drug and pregnancy tests (if applicable). The second visit lasts about 6-7 hours and involves multiple procedures and completing questionnaires to determine which study drug would allow participants to lose weight most effectively. At the third visit, participants will be assigned to take one of three FDA approved medications for weight loss: Semaglutide (Wegovy®), Naltrexone/Bupropion (Contrave®), or Phentermine/Topiramate (Qsymia®). It is possible that participants could be assigned to a group that receives no study medication. All participants will be enrolled in a 12-week virtual group therapy program targeted for weight loss. On this third visit the investigators will also gather vital signs, and participants will give a sample of blood. After the third visit, participants will come in for study visits every 4 weeks for 20 weeks (5 visits) to assess medication adherence, vitals, and answer questions about mood and eating (participants will also give a sample of blood at the 8-week and 20-week visits). For participants assigned to a study medication, the study team will call every week for the first 2 months (excluding in-person visit weeks) to assess mood and safety. After the first 2 months, the study team will call the participant every two weeks in between in-person visits. Participants will be compensated for time spent in this study. Participants assigned to a study medication will also be given the option to participate in the open-label phase of the study, which involves 3 follow-up visits (weeks 24, 36, and 48) over 7 months after the 20-week trial. During this phase, participants can continue to take the medication through their clinical care provider.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-03-11

1 state

Bipolar I Disorder
Bipolar II Disorder
Schizo Affective Disorder
+3
RECRUITING

NCT06804525

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.

Gender: All

Ages: 25 Years - Any

Updated: 2026-03-10

Major Depressive Episode (MDE)
Major Depressive Disorder (MDD)
Persistent Depressive Disorder (PDD)
+20
RECRUITING

NCT05427123

Children's Bipolar Network Treatment Trial I

This is a naturalistic treatment and follow-up study of youth with bipolar spectrum disorders (BSDs) across four US sites of The Childhood Bipolar Network (CBN). CBN sites have expertise in diagnosing, assessing, and treating BSDs in youth. The primary aims of this study are to (1) identify and reliably diagnose youth (ages 9 to 19 yrs) with full bipolar disorder (BD) and BSDs, and (2) examine predictors (e.g., mood instability, inflammatory marker C-reactive protein) of clinical outcome over a 12 month period. Participating youth will initially complete a screening that includes a structured diagnostic interview and a baseline blood draw to measure inflammatory processes. Youth with BSD and parents (80 families) will be asked to participate in multiple follow up research visits with interviews, rating instruments, and questionnaires. Per established CBN guidelines, study psychiatrists will provide and track medication management and sites will also track psychosocial treatments. This study ultimately aims to further understanding of best practice pediatric BSD psychiatric and psychosocial treatments and development of a standardized and validated set of clinical tools for patient assessment, diagnosis, and tracking.

Gender: All

Ages: 9 Years - 19 Years

Updated: 2026-02-05

4 states

Bipolar Disorder
Bipolar I Disorder
Bipolar II Disorder
+4
RECRUITING

NCT07127913

Closed-Loop Deep Brain Stimulation for Treatment-Resistant Bipolar Depression

Neurons are specialized types of cells that are responsible for carrying out the functions of the brain. Neurons communicate with electrical signals. In diseases such as major depression this electrical communication can go awry. One way to change brain function is using electrical stimulation to help alter the communication between groups of neurons in the brain. The purpose of this study is to test a personalized approach to brain stimulation as an intervention for bipolar depression The study researchers will use a surgically implanted device to measure each individual's brain activity related to his/her depression. The researchers will then use small electrical impulses to alter that brain activity and measure whether these changes help reduce depression symptoms. This study is intended for patients with major depression whose symptoms have not been adequately treated with currently available therapies. The device used in this study is called the NeuroPace Responsive Neurostimulation (RNS) System. It is currently FDA approved to treat patients with epilepsy. The study will test whether personalized responsive neurostimulation can safely and effectively treat bipolar depression.

Gender: All

Ages: 22 Years - 70 Years

Updated: 2025-08-17

1 state

Bipolar II Disorder
Bipolar II Disorder, Most Recent Episode Major Depressive
RECRUITING

NCT06706232

Acceptability & Safety of Two Sequential Doses of Psilocybin in Bipolar Disorder II Depression and Suicidality

The purpose of the study is to assess the safety and acceptability of up to two sequential administrations of 25 mg psilocybin with additional therapeutic support in decreasing suicidality in patients with Bipolar Disorder (BD II) depression.

Gender: All

Ages: 25 Years - 70 Years

Updated: 2025-07-18

1 state

Bipolar II Disorder
Depression, Bipolar
Suicidality
RECRUITING

NCT05064319

Gabapentin for Restoring GABA/Glutamate Homeostasis in Co-occurring Bipolar and Cannabis Use Disorders

This research study evaluates the effects of an FDA-approved medication Gabapentin in individuals with Bipolar Disorder who smoke marijuana. Participants in the study will will be assigned to take either Gabapentin or a matched placebo. Study medication will be taken for 17 days. There will be 5 study visits, with 2 MRI brain imaging scans completed. Questionnaires and clinical interview measures will be completed at study visits along with consistent assessment of potential side effects from study medication.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2025-07-08

1 state

Bipolar Disorder
Cannabis Use
Schizoaffective Disorder, Bipolar Type
+5
NOT YET RECRUITING

NCT06560957

SYNCED - SYNChronized Eating in Bipolar Depression Study

Bipolar disorders (BD) are a group of complex disorders that impact mood, behaviour and cognition and are known to cause significant suffering and impairment. Circadian rhythm (your internal day/night "clock") disruption, which can involve changes in sleep-wake cycles, frequently occurs in BD. Both depression and mania are accompanied by circadian disruption. These disruptions are hypothesized to lead to mood worsening, metabolic dysfunction and inflammation. If circadian dysfunction plays a significant role in the symptoms and trajectory of BD, then treatment approaches that target these functions may lead to better outcomes. One such approach is dietary interventions. Time restricted eating (TRE) is a dietary tool that restricts the eating to an 8-12 hour window, without changing diet quality or caloric intake. Studies involving time restricted eating have been done in other conditions with promising results. There have been no studies done for mood disorders in general or bipolar disorder specifically. In this proposal, the investigators will assess two dietary interventions (TRE and nutritional counselling) to examine how TRE may represent a safe and viable adjunct to traditional treatments. The investigators aim to compare TRE with nutritional counselling, while all participants continue to receive usual care. Participants will receive support from a registered dietician and will be instructed on dietary habits. Half of participants will receive nutritional counselling and half will be asked to do TRE. Those in the TRE group will be asked to select a 10-hour window to consume all food and non-water beverages for the 8-week period. Participants will be asked to complete a screening visit to determine eligibility, and then will complete questionnaires at baseline, week 4 and week 8 examining symptoms of their illness and cognition. Participants will also provide a blood sample at baseline and week 8 for standard biochemistry tests, pregnancy testing (if applicable), and to examine inflammatory markers. Participants will also wear an actigraphy watch which provides wireless continuous monitoring of movements and ambient light. The primary outcome is feasibility and acceptability (do people agree to participate, complete the study, and follow the intervention; what do they think of the intervention). Secondary outcomes include changes in depression, anxiety, sleep, and cognition. Exploratory outcomes include inflammatory markers and circadian disruption.

Gender: All

Ages: 18 Years - 55 Years

Updated: 2025-03-28

Bipolar Depression
Bipolar I Disorder
Bipolar II Disorder
ACTIVE NOT RECRUITING

NCT05065294

Psilocybin Therapy for Depression in Bipolar II Disorder

The purpose of this study is to determine the safety, tolerability, and feasibility of psilocybin therapy in people with Bipolar II Disorder.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2024-09-25

1 state

Bipolar II Disorder