- Conditions
- Osteoarthritis (OA) of the Knee, Fear of Needles
- Interventions
- 25 gauge needle, 22 gauge needle, +/- Ethyl Chloride Topical Aerosol Anesthetic
- Procedure
- Lead sponsor
- University of California, Davis
- Other
- Eligibility
- 40 Years to 89 Years
- Enrollment
- 88 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026
- U.S. locations
- 1
- States / cities
- Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced May 22, 2026, 1:12 AM EDT