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Open-label placebos and prosocial behavior

Open-label placebos and prosocial behavior - OLPemp

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00037492
Enrollment
60
Registered
2025-07-22
Start date
2025-07-28
Completion date
Unknown
Last updated
2025-10-06

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

Conditions

Healthy participants.

Interventions

Group 1: Open-label placebo. Subjects are given a nasal spray, which is referred to as a placebo. Afterwards, the participants look at pictures in which people are depicted in painful situations and

Sponsors

Medical School Berlin
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 40 Years

Inclusion criteria

Inclusion criteria: None

Exclusion criteria

Exclusion criteria: Psychiatric or neurological history

Design outcomes

Primary

MeasureTime frame
First primary endpoint: empathy when observing painful images. This is measured directly after each picture by asking how much one empathizes with the person (mean value). Second primary endpoint: prosocial behavior in the dictator game. This is measured directly by the mean value of social decisions in the dictator game. Third primary endpoint: test of prosocial behavior. This is measured at the end of the experiment by asking how many minutes one would be available for an alleged further experiment.

Countries

Germany

Contacts

Public ContactMichael Schaefer

Medical School Berlin

michael.schaefer@medicalschool-berlin.de+49 3076683753

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026