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Sleep Blinding Psilocybin, a feasibility study: Examining if participants can tell if they received psilocybin or a placebo when medication is given to act in sleep

Sleep Blinding Psilocybin: A feasibility study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN10648713
Enrollment
29
Registered
2026-04-15
Start date
2026-06-01
Completion date
Unknown
Last updated
2026-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Depression Mental and Behavioural Disorders

Interventions

The study will run through stages progressively, with one stage running until finished and then moving to the next stage Phase 1 Stage 1 Overview The main purpose of this stage is to assess the d

Sponsors

King's College London
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Age 18 - 65 years 2. Provide a personally signed and dated informed consent document indicating that the participant has been informed of and agrees to comply with all aspects of the study 3. Be willing and able to comply with scheduled visits, dosing plan, laboratory trials and any other necessary procedures 4. Have previous experience with psychedelics or other ‘mind-altering’ substance (e.g. ketamine)

Exclusion criteria

Exclusion criteria: 1. Pregnant or breastfeeding 2. Any current active mental health diagnosis. For participants with a past mental health diagnosis, current absence of an active mental health diagnosis will be determined by a clinician. 3. History of bipolar disorder, personality disorder or psychotic disorder, as assessed by a combination of prior records and by the clinician at the time of screening. 4. Physical health problems incompatible with receiving psilocybin 5. Historic significant suicidal thoughts/behaviour (Colombia-Suicide Severity Rating Scale (C-SSRS > 3)) 6. Any current suicidal ideation (C-SSRS > 0) 7. Clinically significant biochemical or ECG abnormalities at screening 8. Currently using regular psychotropic medication 9. Use of psychedelic drugs in the last month 10. Current enrolment in a drug study 11. Excessive use of caffeine or nicotine as determined by clinical assessment 12. Alcohol dependence as determined by clinical assessment 13. A positive DoA or breathalyser test at admission on the dosing day Exclusion criteria (sleep stages (2 and 4)) 1. Clinically significant abnormalities with sleep as assessed by PSQI and clinical judgement

Countries

England, United Kingdom

Contacts

Public ContactRaphael Rifkin-Zybutz
sleepy@kcl.ac.uk-

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: May 1, 2026