Website outages and system releases

The European Medicines Agency (EMA) makes upgrades to this website and the Clinical Trials Information System (CTIS) from time to time, to improve user experience.

During these times, CTIS and this website may be temporarily unavailable or not work optimally.

You can see when we are planning the next outage below. Registered users can also see notice of any planned interruptions in EMA Service Desk.

Below you can find the full release notes and a list of any outstanding issues and proposed workarounds for these issues.

Some functionalities within CTIS rely on other systems which are also maintained by EMA. Upgrades and related work on any of these systems can affect CTIS users’ ability to perform some actions. You can see when we are planning the next maintenance on these systems below.

On this page

Planned interruptions CTIS

EMA advises you to avoid the following periods for using CTIS or the website search:

Friday 24 June: 18:00-20:00 Amsterdam time
Each Tuesday and Thursday: 18:00 – 21:00 Amsterdam time
Each first Saturday of the month, from 10:00 – 14:00 Amsterdam time

This information is relevant for EMA systems’ users only.

EMA Account Management

Wednesday 18 March: 20:00 – 20:30 Amsterdam time.

During this time slot, CTIS users cannot perform the below actions in EMA Account Management:

Self register for an EMA Account
Request, grant or remove access to CTIS

During the downtime registered users will be able to log into CTIS.

About release notes

These documents outline the latest updates to the CTIS system, including the secure Sponsor and Authority workspaces, and to the Clinical Trials website. Updates may include improvements to existing features and functionality, the addition of new features and functionality and technical improvements.