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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT06042712
Other study ID # IRAS 323994
Secondary ID
Status Not yet recruiting
Phase
First received
Last updated
Start date May 1, 2024
Est. completion date April 30, 2028

Study information

Verified date March 2024
Source King's College London
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Psychotic illnesses are characterised by hallucinations, delusions, and disturbed thoughts; symptoms associated with high personal and societal costs. Despite the efficacy of antipsychotic medication, approximately 84% of patients experience at least one relapse within 36 months of their first episode. Thus, identifying patients who will relapse and who will not, and then providing specific treatment to patients who are more likely to relapse is clinically meaningful. Belief-updating and speech are promising markers to predict first episode psychosis (FEP) patients future relapse outcome, as there has been evidence linking these two markers with the onset and progression of psychotic symptoms. The present study will collect cognitive measures relating to belief-updating and speech in patients with FEP at baseline, and build models to predict relapse based on these measures. Belief updating tasks include simple video games (escaping from a planet in the Space Task and a reversal learning task). To collect speech, participants will be asked to describe ambiguous pictures. The study uses a naturalistic follow-up design; data will be collected from 140 FEP patients recruited from local clinical teams and 100 healthy controls recruited from advertisements. Cognitive tasks will be conducted via an online platform Gorilla using participants' own device (e.g. computer, laptop, smartphone and tablet). Clinical interviews can take place either online or face-to-face. Participants will attend three assessments in total, at baseline and at 6-month and 12-month follow-up. Each visit will comprise two components 1) cognitive tasks (45-60 minutes) and basic demographics, 2) clinical interviews.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 240
Est. completion date April 30, 2028
Est. primary completion date April 30, 2028
Accepts healthy volunteers
Gender All
Age group 18 Years to 40 Years
Eligibility Inclusion Criteria: Inclusion criteria (FEP) Participants will be recruited from two routes: 1. Participants who are part of Urban Mind study will be invited to the present study; 2. Patients who are referred to the following early psychosis teams will also be invited to the study: Lambeth Early Psychosis (LEO), Southwark Team for Early Psychosis (STEP), Lewisham Early Intervention Service (LEIS), Croydon Outreach Assessment Support Team (COAST), Central and North West London NHS Foundation Trust (NWLFT). Participants from both routes will need to meet the following criteria: - all participants are 18 to 40 years old - all participants have an adequate command of the English language to complete the assessment - all participants need access to laptop, smartphone or computer to complete the tasks - all participants met FEP as defined by a DSM-IV diagnosis of schizophrenia, schizophreniform disorder, schizoaffective disorder, or delusional disorder based on the Structured Clinical Interview for DSM-IV (SCID-I) (First et al., 2002). Exclusion Criteria: Exclusion criteria (FEP) - Experienced more than one previous episode of psychosis - Any other neurological disorders that could potentially interfere with study process or patients' safety - Refusing to complete the belief-updating or speech tasks - Participants' answers are identified as fake answers or participants complete the tasks for multiple times (identified by their unique participants code). - Participants are unable to fully comprehend the purpose of the study or make a rational decision whether or not to participate

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
King's College London

Outcome

Type Measure Description Time frame Safety issue
Primary Relapse Change in score on the Positive and Negative Syndrome Scale One year
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