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Delusions clinical trials

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NCT ID: NCT05965232 Completed - Clinical trials for Depression Psychotic Feature

FIbrosis and Steatosis in Patients With Psychiatric Illness

FibroPsy
Start date: October 26, 2017
Phase:
Study type: Observational

Background: Severe psychiatric diseases (schizophrenia, bipolarity, depression, anxious syndrome) are often associated with a metabolic syndrome, including Non-Alcoholic Steato Hepatitis, probably misdiagnosed in patients with psychiatric illness. Furthermore, long-term exposition to substances like alcohol or to one or more psychotropic treatments may involve liver detoxification role. Thanks to liver stiffness, based on FibroScan®, and CAP (controlled attenuation parameter), we wanted to study prevalence of severe fibrosis and steatosis in this population. Material & Methods: Prospective study of 385 subjects hospitalised in a psychiatric hospital for schizophrenia, bipolar disorder, depression or anxiety-depression disorder and receiving psychotropic treatment for at least 2 years, for whom a FibroScan®, a blood test and a record of clinical data were carried out, after information and informed consent. Benefits expected : This study should show an expected excess risk of fibrosis. FibroScan® in this population and determine the risk factors more associated risk factors. Generalized or targeted screening for identified risk factors in this population could help optimize in this population could help optimize the choice and dosage of psychotropic of psychotropic drugs, and above all, help to guide the strategy of hepatic and prevention strategy.

NCT ID: NCT05759091 Completed - Nurse's Role Clinical Trials

Effect of Applying Cognitive Defusion Techniques on Mindful Awareness, Cognitive Fusion and Believability of Delusions Among Clients With Schizophrenia

Start date: September 10, 2022
Phase: N/A
Study type: Interventional

Schizophrenia causes hallucinations, delusions, and disorganized thinking, resulting in decreased functioning and lifelong therapy.Delusion believability is the degree of belief in the truth of one's subjective experiences as representations of reality. It was unpleasant, typically accompanied by a suspicious, strange tension. Delusional belief is seen as a means of resolving tension and conflict in cognition and experience. Previous studies have shown that cognitive defusion strategies help people become more aware of their surroundings, accept their thoughts and feelings, and become more psychologically adjustable. defusion is crucial in reducing medication-resistant psychotic symptoms such delusions in schizophrenia patients. Therefore, this study aimed to investigate the effects of cognitive defusion techniques on psychological flexibility, mindful awareness, cognitive fusion, and believability of delusions among clients with schizophrenia. Research Hypothesizes - Clients who participated in cognitive defusion techniques had more psychological flexibility and mindful awareness than the control group. - Clients who participated in cognitive defusion techniques had less cognitive fusion and delusional believability than the control group.

NCT ID: NCT05240339 Completed - Parkinson Disease Clinical Trials

Characterization and Progression of Minor Phenomena in Parkinson's Disease (PD)

Start date: April 25, 2019
Phase:
Study type: Observational

Parkinson's disease psychosis encompasses a range of symptoms, including minor phenomena, frank hallucinations, and delusions. Minor phenomena include passage hallucinations (fleeting sense of a person, animal or object passing in the periphery), presence hallucinations (feeling of nearby presence), and illusions (misrepresentation of external stimuli). Some forms of PD psychosis may be progressive. The primary objective of this study is to: 1) To determine the cumulative probability of developing hallucinations or delusions over time in individuals with PD minor phenomena followed for 36 months.

NCT ID: NCT04824781 Completed - Paranoia Clinical Trials

Recovery From Paranoia: a Qualitative Exploration

Start date: June 9, 2021
Phase:
Study type: Observational

Paranoia, the experience of undue or excessive mistrust, exists on a continuum which includes suspicious thoughts, ideas of reference, and persecutory delusions. Persecutory delusions refers to strong unfounded fears that others intend harm. These fears are very common. They affect around 70% of patients with schizophrenia. They can be distressing and make day-to-day tasks difficult. However, current treatments are limited and a significant proportion of people do not benefit sufficiently. Therefore, improvements in treatment are needed. A better understanding of the experience of recovery from paranoia will help inform theoretical understanding and treatment development. Currently we do not fully understand what causes paranoia to occur, persist, or end. As such, it is critical to understand the experiences of those who have recovered, in particular what elements encourage recovery. Therefore, the aim of this study is to gain a first-person perspective on how people recover from paranoia and what psychological processes are important for recovery from paranoia. Using a qualitative approach appropriate for exploratory research, semi-structured interviews will be conducted with 12-15 patients who have recovered from paranoia. Interviews will be analysed using interpretative phenomenological analysis, a qualitative research approach which aims to provide insight on how an individual, in a particular situation, makes sense of their experience.

NCT ID: NCT04592042 Completed - Emotional Distress Clinical Trials

Intervention to Improve Coping With Negative Emotions in Patients With Psychosis (Feel-Good-Study)

Start date: January 8, 2021
Phase: Early Phase 1
Study type: Interventional

The aim of the present single-centered pre-post study is to assess the feasibility and to investigate the putative efficacy of an emotion-oriented group intervention for patients with psychosis. Patients with early psychosis in an inpatient unit receive a manualized group intervention focussing on emotional stability and emotion regulation (8 weekly sessions). Assessment will be performed at pre-therapy, post-therapy (after eight sessions and four weeks) and after a follow-up period of 12 weeks (8 weeks post therapy) and includes personal therapy goals and their realization, psychopathology, social functioning and emotion regulation skills as a putative mediator of change.

NCT ID: NCT03822910 Completed - Psychosis Clinical Trials

Hippocampal Memory Circuits in Delusions

Start date: July 13, 2019
Phase:
Study type: Observational

This study will investigate dentate gyrus (DG) and hippocampal CA3 sub field function, using the pattern separation paradigm, as reflected by the difference in brain activation in response to same-as-previously- seen (OLD) vs. similar-to-previously-seen (SIM) objects in first episode psychosis (FEP) subjects before and after anti psychotic treatment and in matched healthy controls (HC). The current study uses three novel high-resolution task-based and post-encoding resting fMRI measures to probe hippocampal circuitry in delusions. It will also study CA1 function, using a sequential associative mismatch paradigm, as reflected by activation of CA1 in response to mismatching information compared to memory of that stimulus in FEP subjects before and after antipsychotic treatment and in matched HC. Finally, this study will evaluate plasticity of hippocampal intrinsic functional connectivity (IFC) in response to memory consolidation, using an encoding-plasticity paradigm, in FEP subjects before and after anti psychotic treatment and in matched HC. For each of the three imaging projects, a total of 50 FEP subjects and 50 matched healthy controls (HC) will be studied; hence, 300 subjects will be studied over 5 years. Within each paradigm, medication-naive FEP subjects will be studied at baseline and 8 weeks after starting anti psychotic medication. HC participants will be studied at baseline and 8 weeks later but will not receive any treatment.

NCT ID: NCT03449394 Completed - Depression Clinical Trials

Effect of 4-session Metacognitive Training in Chinese Adult Outpatients With Schizophrenia Spectrum Disorders and Major Depressive Disorder

Start date: April 2015
Phase: N/A
Study type: Interventional

Psychological studies have shown that individuals tend to attribute causes of positive and negative events differently. Specifically, individuals hold an internalising or externalising bias of attribution which, in the case of particular patient groups, was found to polarize to the extreme. Such extreme attributional styles have found to have a direct impact on emotions, leading to a waning course of psychiatric disorders. This project aims to further examine the theoretical links between attributions and emotions using a transdiagnostic approach, and the effect of a 4-session process-based intervention on attributional biases.

NCT ID: NCT02974400 Completed - Schizophrenia Clinical Trials

Evaluation of Internet-based Cognitive Behavioral Self-help Treatments for People With Psychosis

EviBaS
Start date: December 6, 2016
Phase: N/A
Study type: Interventional

Schizophrenia is a severe mental disorder which is accompanied by an enormous individual and societal burden. Despite established efficacy of cognitive behavioral therapy for psychosis (CBTp), its dissemination into routine mental health care remains poor. National regulations such as the National Institute for Health and Care Excellence (NICE) guideline in the United Kingdom recommend that CBTp should be offered to every person with psychotic symptoms, but more than 50% do not receive even a single session of CBTp. In Germany, CBTp is virtually not represented in the psychotherapy health service. Internet-based cognitive behavioral therapy (CBT) in a self-help format has been proven feasible and effective in anxiety and depressive disorders. Recently, Internet-based (self-help) interventions are also deployed via smartphone apps. The feasibility of Internet-based treatments for people with schizophrenia is well documented for Internet-based interventions (e.g., medication management) and also reported for smartphone interventions. However, there is a dearth of empirical studies precluding a conclusive picture. As far as the investigators know, there is only one study encompassing 90 participants with psychosis that investigated an Internet-based intervention with symptom-specific, cognitive behavioral interventions, which is from the investigators' research group. The unique features of the proposed project are 1) the first-time evaluation of a symptom-oriented, CBTp-based self-help treatment for people with psychotic symptoms via Internet, enhanced with smartphone assistance. The study is set up as randomized controlled trial (RCT) with active treatment versus a wait-list control group. It evaluates a combined Internet-based guided self-help treatment for persecutory ideation and auditory verbal hallucinations. The active treatment condition consists of access to a self-help website including regular written electronic contact with a guide and access to smartphone-based interactive worksheets (apps). The trials combine the low-threshold advantages of an online approach (e.g., anonymity) with the virtues of a clinical trial (e.g., symptom assessment and diagnostic verification via Interview). The primary outcome measure is the Positive and Negative Syndrome Scale (PANSS). Secondary outcome measures include self-reported symptom measures (Paranoia Checklist; Beliefs About Voices Questionnaire revised), completion rates, drop-out from the intervention, general symptomatology, side-effects, and client satisfaction. The project will help to answer the empirical question whether CBTp-based interventions in a purely Internet-based self-help format are effective. Positive findings would pave the way for an easy-to-access treatment option for patients with psychotic symptoms who currently are deprived of psychotherapeutic treatment.

NCT ID: NCT02787135 Completed - Schizophrenia Clinical Trials

Efficacy and Mechanisms of Change of an Emotion-oriented Version of Cognitive-behavioral Therapy for Psychosis

CBTd-E
Start date: May 1, 2016
Phase: N/A
Study type: Interventional

The aim of the present single-blind randomized-controlled therapy study is to assess the efficacy of a new form of Cognitive Behavioral Therapy for delusions with a focus on emotion regulation, improvement of self-esteem and sleep quality (CBTd-E).

NCT ID: NCT02019381 Completed - Clinical trials for Delusion of Reference

Study the Effects of Vitamin D and Calcium Supplementation at Tolerable Upper Limit Doses on Calcium Metabolism.

Start date: September 2013
Phase: N/A
Study type: Interventional

Recently two distinguished committees, Institute of Medicine (IOM) and The Endocrine Society have proposed different intake guidelines for Calcium and Vitamin D. We wish to compare the effects of both of them on calcium metabolism and bone turnover. We propose a one year randomized double blinded study for the same.