Test Your Health Flexible Spending Accounts: What, How, and Why While many people have access to a flexible spending account, or FSA, not everyone understands what a FSA is or utilizes them to their full advantage. Read More Find a TrialSearch for Clinical Trials by condition, keyword or trial number. Share your location or enter your zip code, city, or country to find studies near you. Condition, Keyword, or NCT Number Location Advanced Search Landing Page - Test