Changelog · versioned releases and corrections

Weekly reconciled corpus from four complete registry crawls plus the licensed DRKS slice, with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments.

• — Records +1,038; provenance +20,126.

Weekly reconciled corpus from four complete registry crawls plus the licensed DRKS slice, with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments.

• — Records +4,638; provenance +89,371.

Weekly reconciled corpus from four complete registry crawls plus the licensed DRKS slice, with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments. Product changes since the previous release: EU CTR records now preserve mixed national-authority statuses, and field provenance pages show sampled evidence-link resolution as resolved or unverified.

• — Records +1,207; provenance +23,342.

Weekly reconciled corpus from four complete registry crawls plus the licensed DRKS slice, with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments. Product changes since the previous release: refreshed website and documentation copy, expanded sample questions highlighting one record per registry with normalized status and source links, updated provenance documentation, and published evidence-link liveness results.

• — Records +1,095; provenance +21,165.

Weekly reconciled corpus from four complete registry crawls plus the licensed DRKS slice, with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments. Product changes since the previous release: public documentation now links to dedicated source and provenance pages, and the sample gallery replaces its ISRCTN examples with cross-registry lookups spanning EU CTIS, ClinicalTrials.gov, and DRKS.

• — Records +3,354; provenance +64,836.

Weekly reconciled corpus from four complete registry crawls plus the licensed DRKS slice, with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments.

• — Records +2,306; provenance +44,796.

Weekly reconciled corpus from four complete registry crawls plus the licensed DRKS slice, with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments. Product changes since the previous release: EU registry records now reject truncated official-title displays and preserve CTIS recruitment status semantics; ClinicalTrials.gov exact refreshes preserve complete coverage across publisher pagination-version changes; the public changelog now shows the complete verified release history.

• — Records +1,116; provenance +21,548.

Weekly reconciled corpus from four complete registry crawls plus the licensed DRKS slice, with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments. Product changes since the previous release: Anonymous sample, source, coverage, and current-release API reads now use verified release artifacts; the website now provides a provenance-first record example and streamlined API and MCP guidance.

• — Records +925; provenance +18,119.

Weekly reconciled corpus from four complete registry crawls plus the licensed DRKS slice, with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments.

• — Records +8,101; provenance +125,499.
• — Sources added: drks.

Weekly reconciled four-registry corpus with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments.

• — Records +247; provenance +4,853.
• — Full JSON field surface +1.

Weekly reconciled four-registry corpus with rights-filtered Health Canada regulatory and PubMed/ISRCTN outcome-publication enrichments.

• — Records +780; provenance +15,224.
• — Sources added: health-canada-ctd, pubmed.
• — Full JSON field surface +5.

Bounded four-registry clinical-trial launch corpus with source-linked fields and explicit coverage evidence.

• — First verified release retained in the public ledger.

Schema and field surface

• id: TrialBase DB canonical trial identifier. Multiple registry records can resolve to the same canonical id.
• primary_registry: Source registry selected as the canonical record, using a sources.code value such as clinicaltrials-gov, eu-ctis, eudract, isrctn, or drks.
• registry_id: Identifier for the canonical source registry record, for example an NCT, EudraCT, CTIS, or ISRCTN id.
• source_record_url: Canonical public registry page for the source record used in the exported row.
• registry_ids: Cross-registry identifiers attached to the canonical trial, shaped as objects with registry, id, and hard or soft match method.

Source coverage

• ClinicalTrials.gov: Registry-reported study records from the U.S. National Library of Medicine ClinicalTrials.gov service.
• DRKS: Current DRKS records registered from 2025 onward or, for older registrations, last updated during 2025; the connector enforces that row-level licence gate and retains the public DRKS record link.
• EU CTIS: Public clinical-trial records from the European Union Clinical Trials Information System.

Buyer caveats

• TrialBase DB is reference data, not medical advice, trial recruitment advice or regulatory advice.
• Buyers remain responsible for validating suitability for regulated clinical, commercial or publication workflows.
• Array fields preserve registry-reported terms after trimming and exact-repeat deduplication; completeness and selected provenance are release-level measurements, not schema guarantees.