Effects of PF-06412562 on Value-based Decision-making in Healthy Individuals

Summary

Numerous psychiatric and neurodegenerative diseases like schizophrenia, dependency on drugs of abuse, depression and Parkinson's disease are related to motivational and cognitive deficits in value-based decision making, which frequently persist even after a successful pharmacological treatment. According to current neurobiologic models, cortical dopamine D1 receptors play a crucial role in taking value-based decisions. In this study, it will be investigated whether value-based decisions in healthy volunteers can be improved by stimulation of D1-receptors. For this purpose, a newly developed dopamine D1-agonist will be used, which selectively increases the activities of frontal D1- and D5-receptors. In this double-blind, randomized, placebo-controlled study, the effects of different single doses of PF-06412562, a not yet licensed D1-agonist, on value-based decision making will be compared with placebo. The use of different dosage strengths will allow to investigate a potential relationship between the extent of activity of the D1-receptor and its influence on behavioral indices. Therefore, four parallel groups will be investigated. Each participant takes in a single dose of either PF-06412562 in different doses or placebo. A screening exam will be carried out 1-3 weeks before the drug intake, and a follow-up examination will be carried out approx. 1 week after the drug intake. At all 3 visits in the study centre, several tests for the investigation of value-based decision making will be carried out.

Timeline

Start

2017-05-08

Primary completion

2017-12-20

Completion

2017-12-20

Publications

• Results Soutschek A, Gvozdanovic G, Kozak R, Duvvuri S, de Martinis N, Harel B, Gray DL, Fehr E, Jetter A, Tobler PN. Dopaminergic D1 Receptor Stimulation Affects Effort and Risk Preferences. Biol Psychiatry. 2020 Apr 1;87(7):678-685. doi: 10.1016/j.biopsych.2019.09.002. Epub 2019 Sep 12.
• Results Soutschek A, Kozak R, de Martinis N, Howe W, Burke CJ, Fehr E, Jetter A, Tobler PN. Activation of D1 receptors affects human reactivity and flexibility to valued cues. Neuropsychopharmacology. 2020 Apr;45(5):780-785. doi: 10.1038/s41386-020-0617-z. Epub 2020 Jan 21.
• Soutschek A, Tobler PN. A process model account of the role of dopamine in intertemporal choice. Elife. 2023 Mar 8;12:e83734. doi: 10.7554/eLife.83734.

Drugs

Indications

No indication recorded.