Clinical Research Directory

Stratification and Treatment in Early Psychosis Study - PROMOTE

The purpose of this trial is: * To investigate whether cannabidiol (CBD), compared to placebo, can reduce the severity of attenuated psychotic symptoms in individuals at clinical high risk for psychosis. * To confirm the safety of CBD in individuals at clinical high risk for psychosis. The trial is a randomised, double-blind, placebo-controlled, multi-centre, international clinical trial. Individuals meeting clinical high risk for psychosis criteria will be recruited for the trial intervention component of the trial. Participants are randomised to treatment with oral CBD 300mg (oral solution 100 mg/mL) twice daily, or a matching placebo, for 104 weeks. By using a battery of clinical outcome assessments, the trial will be able to assess several biomarkers to predict clinical outcomes and response to treatment with CBD. Participants will be invited to provide blood samples, stool samples, cerebrospinal fluid samples (if aged 18 years or over) and complete neuroimaging assessments. Individuals who are not found to have mental illness as defined by DSM-5 criteria will be recruited to a healthy control group, to validate the biomarker component of the trial. Additionally, a control group of healthy volunteers will be recruited who will not take the trial intervention to aid calibration between datasets from sites acquiring MRI data and to inform and validate any possible multivariate signature associated with the CHR-P state, course or outcome by understanding how these measures are different in controls. Healthy controls will also be used for secondary case-control comparisons. Healthy controls will undergo clinical and biomarker assessments only.

Sacramento Clinical High Risk for Psychosis Stepped-Care Program

This is a dissemination and implementation study that is evaluating a stepped-care intervention for identifying and treating youths at clinical high-risk for psychosis within multiple community mental health centers.

Metacognitive Training in Ultra-high Risk

The aim of this pilot study is to examine whether metacognitive training can improve symptoms, wellbeing and functioning in individuals with attenuated psychotic symptoms. Metacognitive group training is an intervention designed to raise awareness on and change cognitive biases that may foster the development of psychotic symptoms such as delusions. It has been shown to be helpful in people with manifest psychosis. The main goal is to assess whether this training is prone to reducing symptoms in individuals at risk for psychosis. Participants will be randomized either to treatment as usual or to treatment as usual plus metacognitive training. Follow-ups will be performed over the period of one year.