Studying immune system signals and response to antipsychotic treatment in psychosis
Compares immune markers in adults with psychosis starting antipsychotics against healthy controls.
Plain-language title generated from the registry record
Registry title: Immune Mechanisms of Antipsychotic Treatment Response
Key facts
- Where
- London, United KingdomSee the site
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 65 years old?
Source: NCT06687694, who can take part
Where in United Kingdom
- South London and Maudsley NHS Foundation TrustLondon, United KingdomTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- King's College London
- Trial code
- NCT06687694
- Record updated
- 25 March 2026
- Original description
The aim of this study is to investigate the role of the immune system in psychotic symptoms and their response to treatment. The investigators will collect blood and cerebrospinal fluid samples from participants with psychosis symptoms who are about to start or change to a new regular antipsychotic treatment as well as a control group for comparison.Read full original descriptionShow less
Immune Mechanisms of Antipsychotic Treatment Response
The aim of this study is to investigate the role of the immune system in psychotic symptoms and their response to treatment. The investigators will collect blood and cerebrospinal fluid samples from participants with psychosis symptoms who are about to start or change to a new regular antipsychotic treatment as well as a control group for comparison.
Participants will be assessed at two main timepoints, at visit 1 (Week 0) and at visit 2 (4 +/-2 weeks). For participants with psychosis symptoms visit 1 will take place at the start or change of antipsychotic medication. The studies goal is to identify biomarkers that can aid in diagnosis, prognosis, treatment selection, and tracking treatment response.
The investigators aim to recruit participants from the following groups:
1. Individuals with psychosis symptoms presenting to acute or outpatient services who are due to be started on or change to a new regular antipsychotic medication. 2. Age- and sex-matched control participants without neuropsychiatric disease.
Findings could potentially impact the treatment of psychotic illnesses by offering mechanistic insights into targeted immune-based interventions for these disorders through high-resolution immunophenotyping techniques alongside targeted immunological assays. Ultimately, the research aims to contribute valuable resources for future studies exploring the connection between immune processes and neuropsychiatric conditions.
Inclusion: Participants with psychosis symptoms:; Age 18-65; Currently experiencing psychosis symptoms warranting treatment by secondary care mental health services, as confirmed by a psychiatrist involved in their treatment; Psychosis symptoms likely to be attributable to a disorder represented by ICD codes F20-F39, in the opinion of the treating clinical team; Due to start or change to a new regular antipsychotic medication. (Participants who are initiating antipsychotic treatment for the first time, transitioning to a different antipsychotic medication, or resuming a formerly prescribed antipsychotic medication that was discontinued for a minimum of two weeks may be recruited.); Control Participants; Age 18-65; No active autoimmune disorder; No history of psychosis symptoms.
Exclusion: Currently taking or having taken in the last four weeks any medication known to grossly affect the production or function of immune cells (e.g. corticosteroids, methotrexate, cyclophosphamide, mycophenolate mofetil, rituximab or other monoclonal antibody therapies); Currently taking or having taken in the last four weeks any medication known to grossly affect the production or function of immune cells (e.g. corticosteroids, methotrexate, cyclophosphamide, mycophenolate mofetil, rituximab or other monoclonal antibody therapies); Significant lower spinal deformity (such as spina bifida), injury (such as stenosis) or previous lower spinal surgery; Antiplatelet or anticoagulant therapy within the 14 days prior to Lumbar Puncture procedure; Known or suspected clotting disorder; Known or suspected allergy to local anaesthetic agent or an ingredient of the anaesthetic solution; History of chronic or recurrent headaches, in the opinion of the investigator; Clinically significant abnormality in full blood count; Participants with psychosis symptoms:; Unacceptable risk of harm to participant or study staff due to risk of behavioural disturbance; Inability to have blood tests; Control participants:; Unacceptable risk of harm to participant or study staff due to risk of behavioural disturbance; Inability to have blood tests; Optional lumbar puncture only:; Known or suspected raised intracranial pressure, assessed by study clinician.