Study of Dermal Interstitial Fluid Collection With a Vacuum-Assisted Microneedle Device

This study evaluates the collection of dermal interstitial fluid using a vacuum-assisted microneedle device in healthy adult volunteers. The study will assess the device-based collection procedure and characterize the collected dermal interstitial fluid. Healthy adult volunteers will undergo dermal interstitial fluid collection using a vacuum-assisted microneedle device at the Stanford study site. Participants will complete the study procedures described in the protocol, which may include device application, vacuum-assisted microneedle sampling, collection and analysis of dermal interstitial fluid, assessment of procedure-related effects, and follow-up as specified by the study protocol.