About this trial
KaSP is a multimodal observational study with the goal of clarifying underlying mechanisms that cause psychotic disorders, such as schizophrenia. Participants with psychotic symptoms are recruited early after first contact with health care, within 4 weeks of starting anti-psychotic medication, and are compared to controls without psychiatric diagnoses on several measures.
Eligibility criteria
Qualifiers
Diagnosis as assessed using DSM-IV of one of the following: schizophrenia, schizophreniform psychosis, psychosis not otherwise specified (NOS), brief psychosis, schizoaffective syndrome, delusional disorder
First exposure to anti-psychotic medication less than 4 weeks prior to inclusion
Disqualifiers
A history of diagnosis of a major psychiatric disorder, including substance use disorders.
Family history of psychotic disorders in first degree relatives.
Evidence based on medical history, clinical signs, MRI or laboratory tests of clinically significant somatic disorder, or previous disorder with brain engagement (e.g. tumour, neuroinflammatory disease, epilepsy) or significant brain trauma.
Exposure to an effective radiation dose of 25 mSv during the past year.
Trial design
Treatments tested in this trial
- Not listed
Trial groups
Sponsors and collaborators
Karolinska Institutet
Lead sponsor
Region Stockholm
Collaborator