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.
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 12,568 trial records at the last sync on 07 Oct 2026, 03:16 UTC; this register shows the 2,557 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 4 of those trials with a site in Bulgaria that also match the filters currently applied.
4 of the 2,557 most recently authorised trials in this register list a site in Bulgaria 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.
| Phase | Trials | Share |
|---|---|---|
| Phase II | 4 | 100% |
| Lead sponsor | Trials |
|---|---|
| AstraZeneca AB | 4 |
