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Phase 1 · Washington

Phase 1 clinical trials in Washington

35 studies have at least one recruiting site in Washington. Phase 1 (and early Phase 1) trials are usually the first time a medicine is studied in people. They are typically small, closely monitored, and many are run in dedicated research units, sometimes with overnight stays.

35 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies

Studies

Who these studies look for

Phase 1 studies often have narrow eligibility: specific age and weight ranges, no recent participation in another study, no nicotine, and limits on medications. Some Phase 1 studies recruit patients rather than healthy volunteers, so check each listing.

Matching a page like this one never means you qualify. Each research team decides eligibility at screening.

Questions

Are Phase 1 trials riskier?

Every study carries risk. Phase 1 studies involve less human data about the product, which is why they are closely monitored. The informed consent document explains the known risks; read it carefully and ask questions before signing.

Why do some Phase 1 studies include overnight stays?

Staying in the unit lets staff dose on a precise schedule and collect samples around the clock. Where a record mentions an inpatient stay we flag it on the listing.

Phase 1 clinical trials in Washington (page 2) | Bored Studies