ECRIN - European Clinical Research Infrastructure Network

International Clinical Trials Day (ICTD)

In 2005, ECRIN launched International Clinical Trials Day (ICTD) to commemorate the day when James Lind started his famous clinical trial on scurvy in 1747, May 20th, and laid the foundation for modern clinical research. Celebrated every year on or around May 20th, ICTD is an opportunity for research organisations, clinical research professionals, and the public to acknowledge the achievements that result from clinical research and to discuss various trial topics.

ECRIN’s annual celebration of ICTD brings together European and international stakeholders. Given its success, the conference has been replicated by some of ECRIN’s member/observer countries, who have now introduced their own national/international ICTD celebrations.


ICTD 2022: Recruitment in Clinical Trials 

*Note: ICTD 2022 replaces ICTD 2020 (which was cancelled); all registered participants will be informed by email. 

ICTD 2022 will take place 17 May 2022 in Berlin (Langenbeck-Virchow-Haus Berlin, Luisenstraße 58/59, 10117 Berlin, Germany) from 10:00 to 17:00 CEST (TBC). The topic will be Recruitment in Clinical Trials. For more information visit the dedicated page

How to Participate

Participation is always free and on a first-come, first-served basis. Registration is mandatory (registration link to be updated here as soon as possible).

Learn more about past celebrations

ICTD 2021: Platform Trials: Shift in Treatment, Testing and Collaboration

ICTD 2021 was a virtual event on May 20, 2021. More details on the dedicated page.