Tundra Space

Tundra Space

Clinical Research Directory

Browse clinical research sites, groups, and studies.

11 clinical studies listed.

Filters:

Psychotic Disorder

Tundra lists 11 Psychotic Disorder clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

This data is also available as a public JSON API. AI systems and LLMs are encouraged to use it for structured queries.

NOT YET RECRUITING

NCT07263022

Cognitive Strategies in Early Psychosis 2

The goal of this clinical trial is to learn more about decision making in psychosis spectrum disorders, like schizophrenia. Participants will be people who have had symptoms of a psychosis spectrum disorder start within the last five years. The investigators will study how two study agents change decision making in people with psychosis, by asking participants to complete some brain games on the computer before and after taking the study agents. The investigators hope to improve our understanding of psychosis to help people in the future. The main research questions are: * Does a single dose of modafinil change how people with psychosis play the brain games? * Does a single dose of d-serine change how people with psychosis play the brain games? * Does a single dose of modafinil change brain activity? * Does a single dose of d-serine change brain activity? Participants will: * Complete an interview and self-report questionnaires. * Complete safety screening activities, like a blood draw, a urine drug test, and an alcohol breathalyzer test. * Complete functional Magnetic Resonance Imaging (fMRI) scans. fMRI uses magnets to take pictures of the brain. There will be six scanning appointments in the study, with two scans each. Appointments will be about a month apart. * Take a single dose of a study agent during each scanning appointment. The study agent will be taken after the first fMRI. There are three study agents in total: modafinil, d-serine, and a placebo. Each participant will take each study agent twice during the study. * Play brain games on a computer that measure decision making, thinking, and problem solving skills

Gender: All

Ages: 18 Years - 35 Years

Updated: 2026-04-09

Psychosis
Schizophrenia Disorder
Schizoaffective Disorder
+6
RECRUITING

NCT04945278

Study of Self-Recognition and Self/Other Distinction Disorders in Patients With Psychological Vulnerability

The main objective of this study is to establish whether there are differences in self-recognition and self/other distinction in subjects with psychological vulnerability compared to healthy volunteer controls.

Gender: All

Ages: 15 Years - 25 Years

Updated: 2026-03-19

Psychosis of Childhood Borderline
Psychotic Disorder
RECRUITING

NCT06870006

Psychotropic-Drug-induced QT Prolongation and ECG Monitoring in the Pediatric Population

Electrocardiogram (ECG) Q-T prolongation is a cardiac electrophysiological disorder associated with the occurrence of arrhythmias potentially fatal. Several psychotropic drugs are associated with an increased risk of QT prolongation, which is why in clinical practice a baseline ECG is performed before a psychotropic drug is prescribed. However, there are no validated protocols establishing when to repeat this examination or describing clinical events when this examination should be repeated in clinical follow-up. The study aims to investigate the incidence of QTc prolongation events as a side effect of chronic psychotropic drug administration. For this purpose, ECGs will be recorded and confounding factors of patients at the beginning of psychotropic therapy and after 3, 6 and 12 months will be analyzed.

Gender: All

Ages: Any - 18 Years

Updated: 2026-03-18

3 states

Eating Disorders
Mood Disorders in Children and Adolescents
Psychotic Disorder
+1
RECRUITING

NCT07010614

Brain Stimulation to the Hippocampus in Schizophrenia

Schizophrenia - marked by delusions, hallucinations, and cognitive deficits - causes the most disability of any mental health condition, but existing treatments have significant side effect burden and are often ineffective. Disordered neural activity in the hippocampus likely contributes to schizophrenia symptoms, but to develop better therapies we need to understand whether hippocampal activity in schizophrenia can be systematically affected by non-invasive brain stimulation techniques like transcranial magnetic stimulation (TMS). This proposal will investigate the use of connectivity-guided theta burst brain stimulation to specifically target hippocampal function in schizophrenia, offering insights into fundamental hippocampal processes, schizophrenia pathophysiology, and potential avenues to use brain stimulation as a therapeutic tool in this devastating illness.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-02-27

1 state

Schizophrenia Disorders
Mental Disorder
Psychotic Disorder
RECRUITING

NCT07359157

Changing Lives and Changing Outcomes-9 at Worcester Recovery Center and Hospital

People with serious mental illness (depression, bipolar, and schizophrenia spectrum disorders) have high rates of repeated criminal legal involvement and psychiatric hospitalizations. Longstanding research shows that in addition to treating clients' symptoms of mental illness, targeting risk factors for legal involvement can help reduce their chances of future incarcerations. Because hospitals are becoming increasingly forensic, treatment programs that address both mental illness and risk factors for legal involvement may be especially helpful in a state hospital setting, like Worcester Recovery Center and Hospital (WRCH). This treatment study offers an adjunctive 9-session intervention, Changing Lives and Changing Outcomes-9 (CLCO-9), for patients at WRCH; this program is designed to help people with serious mental illness who are involved in the legal system increase their awareness of their mental health and reduce their chances of future legal involvement. The investigators are proposing a treatment study testing the use of the CLCO-9 group intervention with patients with serious mental illness with current or previous criminal legal involvement at Worcester Recovery Center and Hospital (WRCH). The study has three aims: 1. Evaluate feasibility, fidelity, and patient satisfaction during the implementation of the CLCO-9 group treatment at WRCH 2. Evaluate CLCO-9's effectiveness on improving patient's self-reported mental health, and behavioral indicators of mental health and risk factors for legal involvement 3. Explore changes in WRCH clinicians' knowledge and attitudes about treating risk factors for criminal legal involvement. To test these aims, the research team will employ a two-phase study. In the first phase, the researchers will implement the intervention and make necessary adjustments to maximize the success of the implementation. In the second phase, the researchers will evaluate the treatment program's effectiveness in producing change from pre- to post-treatment. All patient participants in this study will receive the intervention. The projected sample size is about 20 treatment completers and 4 to 8 group leaders.

Gender: All

Ages: 18 Years - Any

Updated: 2026-02-17

1 state

Serious Mental Illness
Psychotic Disorder
Depression
+1
RECRUITING

NCT07397975

Speech-based Assessment of Relapse Risk in People With Psychosis

This observational, multinational study assesses the feasibility of speech and self-report data collection across six languages for Artificial Intelligence (AI)-driven relapse risk estimation in psychosis. Over 12 months, patients at risk of relapse and healthy controls will provide weekly speech recordings and self-report data for automated analysis. Risk scores will be stored but not shared with treating clinicians. Independent clinical evaluations ensure data quality and validation. The study lays the foundation for future Clinical Decision Support System (CDSS) research and explores novel speech markers for relapse prediction while minimizing participant burden.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-02-09

2 states

Psychotic Disorder
RECRUITING

NCT07098169

Randomized Clinical Trial of iTEST: A Blended Intervention Targeting Introspective Accuracy

The purpose of this study is to evaluate the effectiveness of a psychosocial intervention called iTEST for people with psychotic disorders that targets introspective accuracy, or the ability to accurately gauge ones abilities. iTEST combines daily cognitive training on a mobile device with coaching that addresses recovery goals. In this trial, we will randomize people to one of two interventions conditions, iTEST or a control condition that receives coaching and cognitive training that does not emphasize introspective accuracy. Both interventions will take place over 12 weeks and participants will be asked to complete assessments at baseline, 6 weeks, 12 weeks, and 24 weeks. The primary outcome of the study is community functioning. Participants will be from three metropolitan areas: San Diego, Dallas, or Miami.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-01-23

3 states

Schizophrenia Disorders
Schizoaffective Disorder
Psychotic Disorder
RECRUITING

NCT07343193

Deprescribing Antipsychotics: a Multiple Case Study

The literature on antipsychotic deprescribing highlights the difficulty in establishing a clear consensus on the most optimal strategy due to the diversity of clinical situations encountered in daily practice: who should be deprescribed, when, at what rate, what strategy to employ in case of relapse, etc. The fear of relapse leads psychiatrists (particularly in France) to tend to maintain long-term treatment, even if the arguments for this maintenance may be debatable due to an uncertain benefit-risk balance. Conversely, patients often request a reduction or discontinuation, notably because of the side effects of the treatments. This argument serves to justify the value of presenting unique clinical situations like those in this study in a publication. The goal is for readers to gain a practical understanding of the successes and difficulties of deprescribing in real-life situations.

Gender: All

Ages: 18 Years - Any

Updated: 2026-01-15

Psychotic Disorder
RECRUITING

NCT07113119

Effects of a Long-term Exercise Training Program on the Functional Capacity and Health-related Quality of Life in Inpatients With Psychotic Disorders

Mental health represents a fundamental dimension of overall well-being, exerting a significant influence on mortality rates, health-related quality of life (HRQoL), levels of disability, and the strain on healthcare systems. As the interest in mental wellness continues to grow, exercise training (ET) has become increasingly recognized as a validated and effective intervention for individuals experiencing mental health challenges. An expanding body of research underscores the adverse effects of physical inactivity, reinforcing the role of exercise as a viable therapeutic strategy. Well-structured ET interventions have consistently demonstrated benefits across multiple domains, including improvements in physical health, reductions in cardiovascular risk, and enhancements in psychological constructs such as depression, self-esteem, resilience, and self-efficacy. However, the majority of prior studies have been limited to relatively short durations-typically ranging from 4 to 24 weeks, with an average of about 12 weeks. A significant gap in the literature persists regarding the long-term implementation and effectiveness of ET programs, particularly in populations with severe mental illness. Additionally, the small sample sizes commonly seen in previous studies restrict the statistical robustness and generalizability of their outcomes. The aim of the randomized control trial is to examine whether an 1-year mixed type exercise training program within the hospital setting will improve functional capacity and health-related quality of life. Forty- eight participants will be randomly allocated into two groups: Group A (Exercise group) will receive 3 exercise sessions per week for 1-year and Group B (Control Group) will continue their usual care, without participating in organized exercise programs. Prior to the group random allocation, part of the assessment at the baseline and 1 year follow-up will include lower extremity strength test, muscle power using a dynamometer, aerobic capacity test, balance test, body positioning and health- related quality of life.

Gender: All

Ages: 18 Years - Any

Updated: 2025-08-08

1 state

Psychotic Disorder
ACTIVE NOT RECRUITING

NCT06838104

Effect of Melatonin on Schizophrenic Symptoms: a Randomized Placebo-Controlled Trial

Schizophrenia is a chronic mental health disorder that affects thoughts, emotions, and behaviors. It includes positive symptoms such as hallucinations and delusions, as well as negative symptoms like reduced motivation, social withdrawal, and blunted emotional expression. This study is a randomized, placebo-controlled trial designed to evaluate the effect of melatonin on schizophrenia symptoms. Melatonin, a natural hormone that regulates sleep, has antioxidant properties and potential neuroprotective effects. A total of 76 patients diagnosed with schizophrenia according to DSM-5 criteria will be randomly assigned to receive either melatonin (6 mg daily) or a placebo for eight weeks while continuing their standard risperidone-based antipsychotic therapy. Symptoms will be assessed at baseline and after 8 weeks using the Positive and Negative Syndrome Scale (PANSS), a validated tool for measuring schizophrenia severity. The primary outcome will be changes in PANSS scores, evaluating whether melatonin leads to significant improvement compared to placebo. The study hypothesizes that melatonin will significantly reduce positive and negative symptoms compared to placebo. Findings from this research may help determine whether melatonin can be used as an adjunctive treatment in schizophrenia, potentially improving clinical outcomes and quality of life for patients.

Gender: All

Ages: 18 Years - 50 Years

Updated: 2025-02-21

1 state

Schizophrenia Disorders
Psychotic Disorder
NOT YET RECRUITING

NCT05440955

tDCS for Cognitive Impairment Associated With Recent-onset Schizophrenia

Background: In parallel to the traditional symptomatology, deficits in cognition (memory, attention, reasoning, social functioning) contribute significantly to disability and suffering in individuals with schizophrenia. Cognitive deficits have been closely linked to alterations in early auditory processes (EAP) that occur in auditory cortical areas. Preliminary evidence indicates that cognitive deficits in schizophrenia can be improved with a reliable and safe non-invasive brain stimulation technique called tDCS (transcranial Direct Current Stimulation). However, a significant proportion of patients derive no cognitive benefits after tDCS treatment. Further, the neurobiological mechanisms of cognitive changes after tDCS have been poorly explored in trials and are thus still unclear. Method: The study is designed as a randomized, double-blind, 2-arm parallel-group, sham controlled, 4-centers trial. Sixty participants with recent-onset schizophrenia and cognitive impairment will be randomly allocated to receive either active (n=30) or sham (n=30) tDCS (20-min, 2-mA, 10 sessions during 5 consecutive weekdays). The anode will be placed over the left dorsolateral prefrontal cortex and the cathode over the left auditory cortex. Cognition, tolerance, symptoms, general outcome and EAP (measured with EEG and multimodal MRI) will be assessed prior to tDCS (baseline), after the 10 sessions, and at 1- and 3-month follow-up. The primary outcome will be the number of responders, defined as participants demonstrating a cognitive improvement ≥Z=0.5 from baseline on the MATRICS Consensus Cognitive Battery total score at 1-month follow-up. Additionally, we will measure how differences in EAP modulate individual cognitive benefits from active tDCS and whether there are changes in EAP measures in responders after active tDCS. Discussion: Besides proposing a new fronto-temporal tDCS protocol by targeting the auditory cortical areas, we aim to conduct an RCT with follow-up assessments up to 3-months and a large sample size. In addition, this study will allow identifying and assessing the value of a wide range of neurobiological EAP measures for predicting and explaining cognitive deficits improvement after tDCS. The results of this trial will constitute a step toward the use of tDCS as a therapeutic tool for the treatment of cognitive impairment in recent-onset schizophrenia.

Gender: All

Ages: 18 Years - 35 Years

Updated: 2023-04-04

1 state

Schizophrenia
Psychotic Disorder