SITS International

SITS International SITS - Safe Implementation of Treatments in Stroke, is a non-profit, research-driven, independent, i

SITS started in 1996 as an initiative by participants in the European-Australian randomised stroke thrombolysis studies (ECASS). But it was not until 2002 it was given a broader international role. European Union authorities then requested that all patients treated with thrombolysis should be registered in SITS for a period of three years. Registration in SITS became a condition for approval of treatment with intravenous thrombolysis in the EU. Also in 2002, the European Medicines Agency (then EMEA, currently EMA) endorsed SITS as the registry for follow-up on thrombolysis treatment in acute ischemic stroke. SITS has since then developed its services to enable follow-up of other evidence based treatments in acute stroke such as thrombectomy, as well as secondary prevention. Today, over 350 000 patient files are included in more than 1900 stroke centres in over 80 countries on five continents, which makes SITS a world-leading stroke network.
96 scientific articles based on SITS data have been published/are accepted for
publication in international peer reviewed journals since 2007, with more than 350 co-authors.

Visit us at WSC 2025!Visit us at Booth 16, World Stroke Congress 2025Discover our latest studies, join live demos, and c...
20/10/2025

Visit us at WSC 2025!

Visit us at Booth 16, World Stroke Congress 2025

Discover our latest studies, join live demos, and connect with experts.

Don’t miss this opportunity—see you in the exhibition area!

Representing the SITS Coordinating Office at WSC:

Simone Stodell & Niaz Ahmed

World Stroke Organization

Adress

Stockholm
17177

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Our Story

SITS started in 1996 as an initiative by participants in the European-Australian randomised stroke thrombolysis studies (ECASS). But it was not until 2002 it was given a broader international role. European Union authorities then requested that all patients treated with thrombolysis should be registered in SITS for a period of three years. Registration in SITS became a condition for approval of treatment with intravenous thrombolysis in the EU. Also in 2002, the European Medicines Agency (then EMEA, currently EMA) endorsed SITS as the registry for follow-up on thrombolysis treatment in acute ischemic stroke. SITS has since then developed its services to enable follow-up of other evidence based treatments in acute stroke such as thrombectomy, as well as secondary prevention. Today, over 240 000 patient files are included from over 79 countries on five continents, which makes SITS a world-leading stroke network. More than 75 scientific reports have been published in international peer-reviewed journals based on data from SITS.