This Phase II, non-randomised, open-label, parallel-group trial (n=150) will study response to three neuroplasticity-enhancing interventions in civilian and Veteran adults (aged 18–69) at low, intermediate or high risk for self-harm. The study will evaluate clinical change in suicidal ideation (Scale of Suicidal Ideation from baseline to the post‑treatment visit at Month 6) and aim to characterise neurobiological and blood-based markers associated with risk and treatment response. Participants are allocated to one of three experimental arms: two sessions of fMRI neurofeedback targeting amygdala activity, an accelerated theta burst stimulation programme of 50 sessions delivered to the dorsolateral prefrontal cortex, or psilocybin‑assisted therapy comprising three preparation sessions, two psilocybin administration sessions and two integration sessions. Baseline and post‑treatment assessments include clinical measures, structural and functional MRI and blood sampling for circular RNA (circRNA); an artificial intelligence analytic team will use these multimodal data to develop predictive models of behavioural risk and treatment response.
PRE-EMPT will assemble a study group of 150 civilian and Veteran participants from three populations (low risk, intermediate risk, and high risk for self-harm). The investigators will obtain clinical assessments, MRI, and blood levels for circular RNA (circRNA). The teams will then administer three interventions (neurofeedback, transcranial magnetic stimulation, and psilocybin assisted therapy), and repeat the tests above. A team with expertise in artificial intelligence will then use our data to try to find patterns that identify who is at high risk versus low risk with a high degree of accuracy.
Participants undergo two sessions of fMRI neurofeedback, during which they attempt to modulate a visual display of amygdala activity during fMRI.
Unmatched intervention: fMRI Neurofeedback
Participants undergo 50 sessions of theta burst stimulation, delivered to the dorsolateral prefrontal cortex.
Unmatched intervention: Accelerated theta burst stimulation
Participants undergo three sessions of preparation, two psilocybin administration sessions, and two integration sessions.