A Brain Imaging Study to Assess the Binding of MSP-2020 to Serotonin 5-HT2A Receptors in Healthy Male Adults

This study is to see how well MSP-2020 attaches to specific targets in the brain called serotonin type 2A receptors (5-HT2AR). This study will also look at how much of the study drug (and its metabolite) is in the blood and how long the study drug stays in the blood, as well as the safety of MSP 2020.

NCT Number	NCT07329621
Lead Sponsor	Otsuka Pharmaceutical Development & Commercialization, Inc.
Conditions	Healthy Volunteers
Enrollment	18 participants
Start Date	2026-01-15
Primary Completion	2027-01-29 (estimated)
Study Completion	2027-02-11 (estimated)
Updated on ClinicalTrials.gov	2026-06-12