Open-label, crossover study (n=14) assessing IM and IV SPL026 (DMT) in healthy participants with varying psychedelic experience (Part A crossover IM→IV; Part B single IM).
Open-label interventional study in healthy volunteers (n=14) evaluating SPL026 administered IM and IV. Part A enrolls psychedelic-experienced participants in an IM then IV crossover; Part B enrolls psychedelic‑naive participants for a single IM administration.
Primary assessments include safety and tolerability measures, vital signs and ECG, with screening exclusions to minimise psychiatric and cardiovascular risk; SPL026 is described as DMT by the sponsor.
Participants receive IM SPL026 then IV SPL026 2–3 weeks later (crossover).
Part A: IM then IV SPL026 (DMT) 2–3 weeks apart; dose not specified in source.
Part A: IM then IV SPL026 (DMT) 2–3 weeks apart; dose not specified in source.
Psychedelic-naive participants receive a single IM SPL026 dose.
Part B: single IM SPL026 (DMT); dose not specified in source.