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The Role of Personal Experience for the Therapeutic Attitude in the Context of Substance-assisted Therapy Training

The Role of Personal Experience for the Therapeutic Attitude in the Context of Substance-assisted Therapy Training

Status
Enrolling by invitation
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05570708
Acronym
TherPsySE
Enrollment
48
Registered
2022-10-07
Start date
2022-10-25
Completion date
2029-06-01
Last updated
2025-04-14

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

Conditions

Personal Experience of Substance-assisted Therapy Using Psilocybin, MDMA, and LSD

Brief summary

The study investigates two groups of participants of the SÄPT therapist's training starting in October 2022. The overall objective is to investigate the risks and benefits of personal experience (PE) with substance-induced altered states of consciousness for physicians or psychotherapists in the context of a training course for substance-assisted therapy. Specifically, the study aims to assess changes in therapeutic attitude and other factors important in interactions between patients and therapists (such as empathy and cognitive flexibility).

Interventions

DRUGMDMA, LSD, psilocybin

* MDMA per os (2 x 100mg) in a group setting * LSD per os (75 and 150 mcg) in a 1:1 setting * Psilocybin per os (15 mg and 25 mg) in a group setting * Three study days are without drug administration: Participants experience the role of the therapist in a 1:1 setting

Sponsors

Swiss Medical Society for Psycholytic Therapy
CollaboratorOTHER
Felix Mueller
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
27 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Participation in the SÄPT therapist training (medical doctors and psychologists) * Age 27 years or older * Sufficient understanding of the German language * Understanding of procedures and risks associated with the study * Willing to adhere to the protocol and signing of the consent form * Willing not to operate heavy machinery (including driving cars) within 24 hours after substance administration * Woman of childbearing potential are required to use effective, established contraception, such as oral, injected or implanted hormonal methods of contraception, placement of an intrauterine device (IUD) or intrauterine system (IUS), barrier methods of contraception: condom or occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/gel/film/cream/suppository at least one month before and after each study substance intervention, and are willing to take a urine pregnancy test at the medical screening and before every study substance intervention. * Men are required to use contraceptive methods in the month after each study substance intervention and are required to inform their partner(s) about their study participation.

Exclusion criteria

* Previous significant adverse response to a hallucinogenic drug * Significant medical condition rendering volunteers unsuitable for participation (such as impaired kidney or liver function, or heart disease incl. uncontrolled hypertension or hypotension) * Strong underweight (\<45kg) * Current major psychiatric disorder (including personality disorder, including suicidality) and / or previous psychotic or bipolar disorder. * Psychotic disorder or bipolar disorder in first-degree relatives * Use of medication that may interfere with the effects of the study medication. Patients must be willing to discontinue medications in cases where drug-related interactions are possible (the washout phase will be at least 5 times the particular drug's half-life \[typically 3-7 days\] prior to the respective study session). Discontinuation of medication must be judged to be acceptable by the responsible investigator. * Women are excluded from substance intervention during pregnancy or breastfeeding. * nParticipation in another clinical trial (currently or within the last 30 days)

Design outcomes

Primary

MeasureTime frameDescription
TASC-2 scaleThree weeks after last PEThe primary endpoint is changes on the TASC-2 scale of the Therapeutic attitude questionnaire (ThAT)

Secondary

MeasureTime frameDescription
TASC-2 scaleThree weeks after each PE and six months after last PETASC-2 scale of the Therapeutic attitude questionnaire (ThAT)
SOCS-SThree weeks after each PE and six months after last PECompassion with self
SPCS-OThree weeks after each PE and six months after last PECompassion with others
SPF/IRIThree weeks after each PE and six months after last PEEmpathy questionnaire
5D-ASCDirectly after each PE5 dimensions of altered states of consciousness questionnaire
CEQDirectly after each PEChallenging experience questionnaire
semi-structured interviewFive months after last PEA semi-structured interview will be used to explore the range of effects and systematically collect and record subjective effects of the personal experience
PIQDirectly after each PEPsychological insights questionnaire
CSOWDDirectly after each PEConnectedness scale
EBIDirectly after each PEEmotional breakthrough inventory
BFW/EThree weeks after each PE and six months after last PEBerner Subjective Well-Being questionnaire
PEQThree weeks after each PE and six months after last PEPersisting effects questionnaire
APEQDirectly after each PEAcceptance /avoidance-promoting experiences questionnaire

Countries

Switzerland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026