FAQ · dataset facts buyers ask for
Answers to the most common questions about the data, access, and permitted use.
Is TrialBase DB a complete clinical-trials database?
TrialBase DB publishes complete measured crawls of ClinicalTrials.gov, EU CTIS, EudraCT, and ISRCTN, the licensed DRKS slice, plus bounded Health Canada and exact-edge PubMed enrichments. It does not cover every registry or the historical DRKS corpus outside that licence gate, and each dated release can trail source changes until the next weekly update.
Does TrialBase DB replace the source registries?
No. TrialBase DB normalizes public registry records for analysis and points buyers back to the reporting source record where available.
Does the dataset contain personal data?
It can include public sponsor names and sponsor class values from trial registries, including individual sponsors where a registry publishes them.
What happens when registry records disagree?
TrialBase retains source-qualified observations and uses documented deterministic selection rules. Conflicting title, sponsor, date, or identifier evidence can block an automatic merge, and the underlying registry ids and provenance remain reviewable.
How current is the dataset?
Each release is dated and versioned under a weekly freshness policy. The coverage page publishes the last successful source refresh for each included registry; it is not a live recruitment-monitoring service.
Can I inspect real rows before buying?
Yes. The free sample uses the production record contract and exposes representative trial rows, registry identifiers, source URLs, formats, and provenance for evaluation.
What does the standard licence allow?
Standard tiers cover internal commercial use. Customer-facing display, substantial redistribution, resale, and AI or ML training require separately scoped Enterprise rights. Published analysis must preserve applicable registry attribution; see the licence summary and source notes.
Can I upgrade from Snapshot to Snapshot + API?
Yes during the published launch promotion. The Snapshot amount is credited in full toward Snapshot + API for 12 months after the original purchase.
How do I report a wrong trial value?
Use the contact page with the TrialBase id or registry id, field name, and contradicting registry page. Accepted corrections are investigated and recorded in a later versioned release.
Can I pay per row without a subscription?
Yes. Full record lookups cost $0.025 per row; search pages cost $0.10, and coverage calls cost $0.25. Settlement uses x402 (USDC on Base) or MPP (USDC on Base and Tempo). No subscription is required.