is a Data Source.
The EU Clinical Trials Register (EU CTR) and the Clinical Trials Information System (CTIS) are the European Medicines Agency's public registries of interventional clinical trials of medicines in the European Union and European Economic Area. The EU Clinical Trials Register, established under Article 11 of Directive 2001/20/EC, gives public access to protocol and summary results information from the EudraCT database for trials started since May 2004, including paediatric trials run outside the EU/EEA as part of a paediatric investigation plan. CTIS, under Clinical Trials Regulation (EU) No 536/2014, has handled all new trial applications since 31 January 2023 and became the single entry point for ongoing trials after the transition period ended in January 2025; its public portal publishes trial information, documents and results. The legacy register no longer accepts new trials but remains online as the source for trials authorised under the Directive.
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No external IDs available
| ID | Name | URL | Category | Format | Description |
|---|---|---|---|---|---|
| eu-ctr.search | EU Clinical Trials Register Search | search | Graphical Interface | http | Web search interface for the EU Clini... |
| eu-ctr.download | EU Clinical Trials Register Search Results Download | full?query=&page=1&mode=current_page | Product | txt | Plain-text export of EU Clinical Tria... |
| eu-ctr.results | EU Clinical Trials Register Results | search?query=&resultsstatus=trials-with-results | Graphical Interface | http | Summary results of EU Clinical Trials... |
| eu-ctr.ctis | CTIS Public Portal | search | Graphical Interface | http | Public portal of the Clinical Trials ... |
| eu-ctr.faq | EU Clinical Trials Register FAQ | EU_CTR_FAQ.pdf (179.8 KB) | Documentation | Frequently asked questions for the EU... | |
| eu-ctr.ctis.docs | CTIS Documentation | clinical-trials-information-system-ctis | Documentation | http | European Medicines Agency documentati... |
| ID | Name | URL | Category | Format | Relation | Description |
|---|---|---|---|---|---|---|
| who-ictrp.portal | ICTRP Search Portal | trialsearch.who.int | Graphical Interface | http | had primary source | ICTRP Search Portal for searching tri... |
| who-ictrp.search-export | ICTRP Search Results Export | downloading-records-from-the-ictrp-database | Product | xml | had primary source | Export of ICTRP search results (selec... |
| who-ictrp.web-service | ICTRP Search Portal Web Service | ictrp-search-portal-web-service | Programming Interface | xml | had primary source | ICTRP Search Portal Web Service, a SO... |
| ecrin-mdr.portal | ECRIN MDR Portal | newmdr.ecrin.org | Graphical Interface | http | had primary source | Web portal for searching clinical stu... |
| ecrin-mdr.api | ECRIN MDR API | index.html | Programming Interface | http | had primary source | REST API behind the MDR portal (MDR_F... |
The European Medicines Agency (EMA) operates two public registries of interventional clinical trials of medicines in the EU/EEA. The EU Clinical Trials Register publishes protocol and summary results information from the EudraCT database for trials authorised under the Clinical Trials Directive (2001/20/EC) since 2004. The Clinical Trials Information System (CTIS) replaced it for trials under the Clinical Trials Regulation (EU) No 536/2014: all new applications have gone through CTIS since 31 January 2023, and ongoing Directive trials had to transition to CTIS by January 2025.
Note that “EU CTR” is also a common abbreviation for the Clinical Trials Regulation itself.
Data may be reused provided the source is attributed and the access date is displayed; email addresses in the register must not be used for marketing.
Created: October 05, 2026 | Last modified: October 05, 2026