Placebo effects in experimentally induced guilt: A randomized controlled trial in healthy subjects

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00029098

Enrollment

112

Registered

2022-05-25

Start date

2019-08-01

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

healthy volunteers

Interventions

Group 1: deceptive placebo: Single dose of a placebo pill (P-dragee, blue, Lichtenstein manufactured by Zentiva Pharma GmbH) & treatment rationale of a phytopharmaceutical Group 2: open-label placebo:

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: According to their own statements, be healthy, be between 18 and 65 years old and have sufficient command of the German language.

Exclusion criteria

Exclusion criteria: Self-reported acute or chronic somatic illness or psychiatric disorder, psychological or psychiatric treatment, and use of psychotropic drugs.

Design outcomes

Primary

Measure	Time frame
Guilt after the Guilt Boost	—

Secondary

Measure	Time frame
Shame and pride feelings after the guilt boost	—

Countries

Switzerland

Contacts

Public ContactJens Gaab

Fakultät für Psychologie, Universität Basel

jens.gaab@unibas.ch+41 61 20 70748

Outcome results

None listed

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