- Conditions
- Healthy, Opioid Use Disorder
- Interventions
- Carfentanil, C-11, Naloxone, Loperamide Hydrochloride
- Drug
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 25 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2027
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 29, 2026 · Synced May 22, 2026, 4:12 AM EDT