Browse clinical trials
Find your way into all 175,638 registered US clinical trials, alphabetically by condition, or straight to the most-studied conditions, most-active sponsors, and busiest states.
According to ClinicalTrials.gov, the public registry maintained by the U.S. National Library of Medicine, PlainTrial mirrors 175,638 US clinical trials spanning 28,977 distinct conditions and 15,751 sponsors, of which 24,857 are currently recruiting participants. This page is the front door to all of it: browse conditions alphabetically, jump to the most-studied conditions and most-active sponsors, or start from a US state. Every entity page is built live from the registry and links back to the original ClinicalTrials.gov record. See our methodology for how this data is sourced and refreshed.
Conditions A–Z
PlainTrial tracks 28,977 distinct conditions. Jump to any letter to see every condition starting with it and the trials studying each.