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what factors among delusion proneness, schizotypy, cognitive biases for psychosis, social cognition, and neurocognition explain higher familial loading across schizophrenia spectrum disorders.

Examining Delusional Proneness, Schizotypy, Cognitive Biases for Psychosis, Social Cognition, and Neurocognition in Individuals with Schizophrenia, their First Degree Relatives and Normal Controls: an endophenotypic study - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2024/08/072030
Enrollment
342
Registered
2024-08-07
Start date
Unknown
Completion date
Unknown
Last updated
2024-08-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: F23- Brief psychotic disorder Health Condition 2: F22- Delusional disorders Health Condition 3: F28- Other psychotic disorder not due to a substance or known physiological condition Health Condition 4: F20- Schizophrenia Health Condition 5: F21- Schizotypal disorder Health Condition 6: F29- Unspecified psychosis not due to asubstance or known physiological condition

Interventions

Intervention1: nil: nil Control Intervention1: Schizophrenia Spectrum disorder patients: First Degree Relatives(Siblings), Healthy controls

Sponsors

Neelabh Prajapati
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Person with Schizophrenia 1. Individuals diagnosed with schizophrenia based on ICD-11/ICD-10 (DCR)/DSM 5 criteria for schizophrenia. 2. Age group between 18 to 45 years. 3. Duration of illness =5 years 4. Minimum education level up to 6th standard. 5. Those who would give informed consent for the study. 6. Stable on antipsychotic medication First Degree Relatives of Schizophrenia 1. Siblings of persons diagnosed with schizophrenia. 2. Subjects aged 18 to 45 years. 3. Those who would give informed consent for the study. 4. Schizophrenia proband also agreeing to participate in the study Normal Control 1. Subjects aged 18 to 45 years. 2. Minimum Education up to 6th standard. 3. Those who would give informed consent. 4. Kessler (K-10) score less than or equal to 19 5. Fifty percent of the participants will be matched on age and education while the other half will be matched with the siblings.

Exclusion criteria

Exclusion criteria: Persons with Schizophrenia 1. History of any comorbid psychiatric and neurodevelopmental disorders 2. Significant neurological or medical illness. 3. Electroconvulsive therapy in the past 6 months. 4. Unable to comprehend items and task instructions. First Degree Relatives 1. History of any psychiatric disorder. 2. Significant neurological or medical illness. 3. Unable to comprehend items and task instructions Normal Control 1. Present or past history of psychiatric disorder/neurological illness 2. Family history of psychiatric/neurodevelopment disorders. 3. Significant neurological or medical illness. 4. Kessler (K-10) score more than 19. 5. Education below 6th standard.

Design outcomes

Primary

MeasureTime frame
The study will help us in understanding whether a combination of factors among delusional proneness, schizotypy, cognitive biases for psychosis, social cognition, and neuro-cognition provides a more comprehensive explanation of familial risk for schizophrenia spectrum disorder compared to any single factor alone.Timepoint: 2 years.

Secondary

MeasureTime frame
nilTimepoint: nil

Countries

India

Contacts

Public ContactDr Vikas

Lokopriya Gopinath Bordoloi Regional Institute of Mental Health

psy.pabhishek@gmail.com7664924224

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026