Dataset family

ClinicalTrials.gov

Name: ClinicalTrials.gov — Fonteum source-family layer
Creator: Fonteum
License: https://www.usa.gov/government-works

NIH — National Library of Medicine. 534,000 studies · Historical catalog reference: May 2026. Reference date May 2026; historical catalog reference; not a current count or freshness claim.

Dataset spec

dataset_id	clinicaltrials-gov
catalog_reference_date	May 2026
sha256	Not asserted by this historical catalog reference; see /trust/integrity
catalog_reference_basis	Historical catalog reference; not a current count or freshness claim
license	US Government Works (public domain, 17 U.S.C. §105)

Studies citing ClinicalTrials.gov (2)

Who runs the clinical trials: academia, not pharma, 2026
2026-06-17 · 9 min
Where clinical trials stop: the Phase 2 valley, 2026
2026-06-16 · 9 min

All research →

What’s on file, by the numbers

Platform snapshot · 2026-08-14

13.4Mproviders & companiesProviders, organizations, owners, and facilities on file

26.2Msource-linked factsSource-linked field facts in the dated platform snapshot

90sources with dataDistinct snapshot source IDs with at least one positive record count

72fresh sourcesDistinct source IDs whose latest positive-data snapshot falls within the preceding 45 days

111sources integratedActive registry rows; integration does not establish a load

13state Medicaid jurisdictionsDistinct states represented in the state-exclusions serving table

Integrated, with-data, and fresh-observation counts are separate. No platform-wide source-completeness count is published. Completeness is source-specific and must be evaluated against the named source's expected scope. State coverage is a separate jurisdiction measure.

Source authority is record-specific

Use the issuer named on the record.

Fonteum spans federal, state, and global public publishers. A source page or returned record identifies its issuer and dataset where that metadata is available. A platform registry count does not assign every page to one authority or establish loaded, fresh, or complete coverage.

Browse source records and their stated limitations →

Reproducible by design

Inspect the evidence each published figure actually supplies.

Source and date

Research pages expose the named public file and observation date where those fields are available. Source-file SHA-256 coverage is separate; facts do not currently link deterministically to signatures.

Available derivation

Studies with a retained release and committed derivation link the SQL or method used. Other studies state the evidence and reproduction limits they actually have.

Daily observations

Dated table row-count observations can detect local drift. They do not imply that an upstream publisher released or Fonteum ingested new data that day.

Named medical review

Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

Read the full provenance and attestation methodology →

Request access