Clinical Trials in Ireland, 2026
The most recently authorised trials on the EU Clinical Trials Information System (CTIS), the single register for every trial run under the EU Clinical Trials Regulation (536/2014). CTIS holds a far larger historical archive than any one list can usefully show — this register states both numbers rather than picking one.
About this register
This register is built from the EU Clinical Trials Information System (CTIS), run by the European Medicines Agency: the single register for every trial authorised under the EU Clinical Trials Regulation (536/2014). CTIS held 12,704 trial records at the last sync on 25 Oct 2026, 03:17 UTC; this register shows the 2,558 most recently authorised of them, a stated recency window rather than the full archive. The list can be downloaded as CSV or JSON.
This page shows the 17 of those trials with a site in Ireland that also match the filters currently applied.
How many recently authorised EU trials have a site in Ireland?
17 of the 2,558 most recently authorised trials in this register list a site in Ireland and match the filters applied; 0 of them are Phase III. Trials are counted by authorisation on CTIS, not by recruitment status, which CTIS does not publish in the same form as ClinicalTrials.gov.
Summary by phase
| Phase | Trials | Share |
|---|---|---|
| Phase II | 17 | 100% |
Most active sponsors
| Lead sponsor | Trials |
|---|---|
| Almirall S.A. | 1 |
| Alnylam Pharmaceuticals Inc. | 1 |
| AstraZeneca AB | 1 |
| Avalyn Pharma Inc. | 1 |
| Bristol-Myers Squibb Services Unlimited Company | 1 |
| CSL Behring LLC | 1 |
| F. Hoffmann-La Roche AG | 1 |
| Hemato-Oncologie voor Volwassenen Nederland (Hovon) Stichting | 1 |
| Immunovant Sciences GmbH | 1 |
| Laboratoires Thea | 1 |