U.S., Feb. 25 -- ClinicalTrials.gov registry received information related to the study (NCT07429292) titled 'SPARK Study - Sympathetic Periarterial Radial Block in Healthy Volunteers' on Feb. 18.
Brief Summary: The SPARK Study evaluates changes in peripheral sympathetic vasomotor activity following a targeted, ultrasound-guided periarterial sympathetic block of the distal radial artery in healthy volunteers. Autonomic reactivity will be assessed before and after the block using digit-specific pulse-amplitude index and infrared thermography during standardized cold pressor testing.
Study Start Date: May, 2026
Study Type: INTERVENTIONAL
Condition:
Healthy Volunteers
Sympathetic Activity
Intervention:
DRUG: Lidocaine 2%
Small-volume in...