Obsessive-Compulsive Disorder (OCD) is a mental health condition characterized by persistent, intrusive thoughts and repetitive behaviors. Clinical trials for OCD explore various treatment approaches, including new medication evaluations and behavior...

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Found 398 Actively Recruiting clinical trials

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Healthy Volunteer

Researchers are conducting the GENESIS clinical study to map the HLA genomic region in the Greek population and explore its possible links with various underlying diseases. This non-interventional, multicenter study aims to provide a pilot map of genetic variation in HLA that may be useful in medical research and clinical applications related to selected diseases. The study plans to include 12,000 participants over a total duration of 36 months. Each participant will attend one visit at a participating site during which they will provide demographic data, lifestyle information such as smoking and alcohol use, blood pressure measurements, details on diagnosed diseases and treatments, and recent laboratory test results if available. Buccal swab samples will be collected from each participant to extract DNA for HLA genotyping analysis. Selected samples will undergo further whole genome sequencing to investigate associations with autoimmune diseases. Participants will receive a personalized ancestry report after analysis completion. During the study visit, data collection includes demographic and health information, as well as laboratory and clinical test results from the past year. The genetic material from buccal swabs will be stored and processed for genetic analysis. Researchers will measure allele frequency of HLA alleles in the Greek population and assess the prevalence and risk associations of selected HLA-related diseases. The study's total duration is 36 months with results available at the end of this period.

Age: 18Years +All Genders
8 locations
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Actively Recruiting

Suicide is the second leading cause of death among youth, and rates in the US are rising despite prevention efforts. Researchers are evaluating a digital platform called Vira to improve how care is delivered to adolescents at high risk for suicide. This platform aims to use smartphone data and secure communication tools to better understand and manage risk factors like psychological distress, anhedonia, behavioral withdrawal, and sleep problems in young people receiving intensive outpatient treatment. The study compares two groups of adolescent patients aged 13 to 18 years old who are in an intensive outpatient Dialectical Behavior Therapy (DBT) program. One group uses the Vira platform, which collects data passively from smartphone sensors about activity, sleep, mobility, and mood-related language. Vira also prompts daily check-ins and supports practitioners with reminders to encourage behavior changes. The other group receives the usual treatment with the addition of a passive monitoring app called EARS. Participants will use their assigned app during their intensive outpatient treatment. Researchers will assess outcomes using tools like the Columbia Suicide Severity Rating Scale and Scale for Suicidal Ideation over six months. Other measures include anxiety, risky behaviors, sleep quality, mood, and pleasure scales at three and six months. The study monitors clinical outcomes to determine if the digital platform enhances care for youth at risk of suicide.

Age: 13Years - 18YearsAll GendersPhase Not Applicable
1 location
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Actively Recruiting

Healthy Volunteer

Research on personality disorders (PDs) in older adults is limited despite these disorders being common in this age group and often co-occurring with other mental and physical conditions. Current diagnostic criteria mainly fit younger adults, so this study evaluates new dimensional models for PDs called the Alternative Model for Personality Disorders (AMPD) and the ICD-11 approach. Researchers aim to assess if these models are appropriate and clinically relevant for older adults by comparing younger and older populations and studying older clinical patients. Participants include younger adults (18-64) and older adults (65+) from the general population who complete questionnaires. Older adults in clinical settings with various psychological conditions will also take questionnaires, and a smaller group will undergo clinical interviews. The study uses two main questionnaires: the LPFS-BF 2.0 measuring personality functioning, and the PID-5-BF+M measuring personality traits. Additional standard tests and clinical ratings will be collected in the clinical population. Participants will complete questionnaires in person, with some clinical participants providing informant reports from family or friends. Researchers will analyze questionnaire results for validity, age-neutrality, and clinical utility. The primary outcomes are scores from the PID-5-BF+M and LPFS-BF 2.0 collected about one month after admission, with clinical ratings and additional measures collected during hospitalization and follow-up. The study involves ongoing monitoring to understand PD structure and characteristics in older adults and improve care.

Age: 18Years +All GendersPhase Not Applicable
2 locations
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Actively Recruiting

Researchers are evaluating the effectiveness and feasibility of Narrative Enhancement and Cognitive Therapy (NECT), a group-based treatment designed to reduce self-stigma in people with mental disorders. Self-stigma involves internalizing negative stereotypes which can harm treatment adherence, self-esteem, quality of life, and increase despair or suicide risk. This pragmatic, multicenter, randomized controlled trial includes 416 patients from 26 mental health centers in Northeast Italy, aiming to improve psychological outcomes like self-esteem, hope, empowerment, recovery perception, and mental well-being. Participants in the intervention group will attend 20 one-hour NECT group sessions divided into five parts: orientation, psychoeducation, cognitive restructuring, narrative enhancement, and conclusion. The therapy helps challenge stigmatizing beliefs and fosters a positive self-narrative. This group therapy is provided alongside participants' usual care, which may include medication and psychosocial treatments. The control group will continue their standard care without NECT. The study lasts about 12 months, with a 2-month recruitment phase, 5 months of intervention, and 5 months for data analysis and publication. Participants will undergo assessments at enrollment and after the 20-week intervention to measure changes in self-stigma, self-esteem, hope, empowerment, recovery perception, mental well-being, and stigma-related stress. Treatment fidelity will be monitored through session recordings. The study also tracks feasibility by evaluating participation rates and feedback. All participants remain under their usual care throughout the study, and data collection includes monitoring care received during the trial.

Age: 18Years +All GendersPhase Not Applicable
1 location
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Actively Recruiting

Researchers are evaluating a lifestyle intervention aimed at improving health habits and reducing cardiometabolic risk factors in adults with obsessive-compulsive disorder (OCD). This condition is linked to higher risks of heart and metabolic diseases, partly due to unhealthy lifestyle behaviors. This trial is the first randomized controlled study to assess the effectiveness and cost-efficiency of such an intervention for people with OCD. Participants are randomly assigned to one of two groups. The first group receives a 13-week lifestyle program including one personal session to set goals, followed by 12 weekly group sessions combining education on healthy habits and physical exercise. After these sessions, they get access to a digital booster module to maintain changes. The second group receives one individual session with feedback on their health and written advice on healthy lifestyle habits based on national guidelines. During the study, participants will wear accelerometers to measure physical activity, and assessments will take place at the start, after 14 weeks, and at 12 months to track changes in activity, diet, mental health, and cardiometabolic markers. Questionnaires and physical measurements will be used to evaluate outcomes such as stress, sleep, OCD symptoms, quality of life, and various blood tests. Safety and cost-effectiveness will also be monitored throughout the trial period.

Age: 18Years +All GendersPhase Not Applicable
1 location
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Actively Recruiting

Healthy Volunteer

Researchers are investigating the effects of a multidomain lifestyle intervention to slow cognitive decline and dementia risk in elderly residents aged 60 to 80 in Zhejiang Province, China. The study builds on findings from Finland, where a similar approach combining physical activity, nutrition, cognitive training, social activities, and vascular risk management showed promise in healthy older adults at risk of cognitive decline. This trial aims to explore how such an intervention may change brain structure and function as well as cognitive abilities in an Asian population. Participants are randomly assigned to either a structured multidomain intervention group or a self-guided control group. The intervention group receives tailored nutritional guidance, cognitive training, physical exercises, and vascular risk monitoring, all adapted to Chinese cultural norms. The control group receives regular health education campaigns and basic health monitoring every 6 to 12 months. This trial runs for two years with ongoing assessments to evaluate the impact of these lifestyle changes. During the study, participants undergo various evaluations including cognitive tests measuring global and domain-specific cognition, neuroimaging scans like MRI and fMRI, laboratory blood tests, and physical performance measures such as grip strength and gait speed. Questionnaires assess quality of life, depression, sleep quality, and daily activities. Researchers also monitor cardiovascular health, dementia onset, and falls. This comprehensive monitoring will help determine the intervention's effects on brain health and daily functioning over the 24-month period.

Age: 60Years - 80YearsAll GendersPhase Not Applicable
1 location
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Actively Recruiting

Healthy Volunteer

Researchers are evaluating the effects of a smartphone-based Healthy Lifestyle (HLS) intervention on the mental and physical health of firefighters in Tainan, Taiwan. This cluster randomized controlled trial aims to determine if the Traditional Chinese version of the HLS mobile app can improve firefighters' health compared to usual care. The study also seeks to find out whether the intervention can promote a healthier lifestyle and reduce the risk of chronic non-communicable diseases among firefighters. Participants will be randomly assigned to either the intervention group, which uses the Traditional Chinese HLS mobile app designed specifically for firefighters, or the control group, which receives usual care. The intervention period lasts from 3 to 6 months, during which firefighters in the intervention group will use the app to support healthier behaviors. The control group will continue with their standard practices without the app. Throughout the study, firefighters will undergo health and fitness assessments at the start and again 3 to 6 months after the intervention begins. Measurements include blood pressure, depressive symptoms, PTSD symptoms, body mass index, smoking habits, diet patterns, physical activity levels, sitting time, sleep duration and napping frequency, glycated hemoglobin, lipid profiles, C-reactive protein, and physical performance. The study will monitor these outcomes to assess changes in mental and physical health. Safety and progress will be observed through these regular evaluations during the study period.

Age: 20Years +All GendersPhase Not Applicable
1 location
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Actively Recruiting

Researchers are evaluating the effectiveness and safety of lemborexant, a new dual orexin receptor antagonist, in treating adults with mental disorders complicated by insomnia. This observational study focuses on patients aged 18 and above who meet the DSM-5 criteria for mental disorders and have an Insomnia Severity Index score of 11 or higher. The study aims to provide real-world evidence for optimizing treatment plans for insomnia alongside psychiatric conditions. Participants will receive lemborexant tablets taken orally before bedtime, starting at 5 mg per day, which may be increased to 10 mg based on clinical response and tolerance. The treatment period lasts 8 weeks, including a baseline assessment week and 8 weeks of active treatment. Patients who are using benzodiazepine receptor agonists at the start are recommended to gradually reduce and stop these within the first 4 weeks. The study is single-arm and prospective, with all participants receiving lemborexant. During the study, participants will complete various assessments including the Insomnia Severity Index, Sleep Satisfaction VAS, and Epworth Sleepiness Scale at baseline, week 4, and week 8. Researchers will monitor changes in insomnia symptoms, treatment retention, benzodiazepine discontinuation rates, dose adjustments, and adverse events. The total duration of participation is approximately 8 weeks, with follow-up to observe symptom improvement and safety outcomes.

Age: 18Years +All Genders
9 locations
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Actively Recruiting

Researchers are developing a multicenter registry to collect and share data on pediatric patients who have undergone deep brain stimulation (DBS) for movement disorders such as dystonia, epilepsy, Tourette syndrome, and mood disorders. The study aims to improve understanding of DBS safety and effectiveness in children, as current data are limited and individual centers often have too few cases for strong research. This registry will support large-scale analyses and help refine DBS as a treatment option for hyperkinetic movement disorders in the pediatric population. The study involves gathering both retrospective and prospective clinical data from multiple pediatric centers. The registry will collect information on surgical techniques, patient outcomes, implant sites, and long-term effects of DBS. This collaborative data-sharing approach enables comprehensive evaluation of which patients benefit most from DBS and how it impacts their quality of life over time. Participants include children aged 0 to 18 years who have already received or are scheduled to receive DBS for neurological movement disorders. Data will be collected over five years to monitor safety, efficacy, and quality of life outcomes. The study does not involve treatment administration but focuses on gathering and analyzing clinical information. Parental or legal guardian consent is required for prospective participation.

Age: 0Years - 18YearsAll Genders
1 location
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Actively Recruiting

Researchers are evaluating whether teaching people personalized versus standardized emotion regulation skills can better reduce daily negative emotions. The study also aims to see if matching participants to their predicted best skill training is feasible and helpful. This research may reveal how emotion regulation treatments impact emotional health and help develop personalized, evidence-based, and scalable interventions. Participants will be randomly assigned to learn one of three emotion regulation skills—cognitive restructuring, opposite to emotion action, or mindfulness—that matches their personal strengths, or to learn all three skills through interactive videos with surveys to practice and check understanding. These training conditions are designed to compare focused versus broad skill coverage. During the study, participants will report their emotions multiple times daily for 42 days, using the Positive and Negative Affect Schedule-Short Form. They will also complete assessments every two weeks for six weeks, measuring depression, anxiety, personality traits, responses to emotions, and breath-counting tasks. Researchers will monitor changes in emotion regulation effectiveness and emotional experiences to understand the impact of the training.

Age: 18Years +All GendersPhase Not Applicable
1 location

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