This frozen snapshot contains 4,316 published records, 452 preprints, 308 trial registrations and 3 protocols. Catalogue records are not independently verified studies. “Published” is the database’s classification, rather than an independent peer-review audit; registrations are not trial results.
Source counts reflect retained labels after deduplication and enrichment, not the complete coverage of each database. Use labelled counts to compare source clouds; annual and topic bars share a zero baseline. Recorded years use stored publication or registry dates, which do not necessarily indicate study completion.
2026 is incomplete. Its records include four dates after the 11 October snapshot. Those entries are preserved in the film. Indexing delays, backfills and changing source coverage also affect comparisons. Record counts do not measure treatment efficacy.
Methods: Dr. Christopher B. Germann. For current counts, visit research trends.
