International Society on Thrombosis and Haemostasis

📢 Now open for public comment: Inherited Thrombophilia Testing The ISTH Guidelines and Guidance Committee is seeking feedback on the draft guidance manuscript, “Clinical and laboratory guidance to inherited thrombophilia testing.” 🗓️ Submit your comments: survey.alchemer.com/s3/8973197/P...

The #NATA26🩸Abstract Supplement has been published in Research and Practice in Thrombosis and Haemostasis (RPTH). 📰 RPTH sciencedirect.com/journal/rese... 🇪🇸Digital supplement and more nataonline.com/nata26-abstr... #Haemostasis #Thrombosis #PBM #Anemia #Transfusion @rpth.bsky.social @isth.org

Missed a session or want to revisit your favorites? ISTH 2026 Congress recordings are now available through the ISTH Academy with one full year of access for a fee. 🔗 Watch sessions and purchase access: academy.isth.org/isth/#!*menu... | youtu.be/_sZ8TVu3pa4

Join us in celebrating the 2026 ISTH Reach-the-World Fellowship recipients! The ISTH is proud to recognize Veronica Privitera (Argentina) and Caryn Louise Gutierrez (Philippines) as recipients of the 2026 Reach-the-World Fellowship.

As we continue to reflect on an incredible #ISTH2026 Congress in Paris, we’re proud to share the impact of our sustainability efforts. Thank you to everyone who helped us make #ISTH2026 not only a memorable Congress, but a more sustainable one.

Implementing gene therapy in hemophilia takes more than clinical knowledge. These vetted resources can help you support referral, treatment, and long-term monitoring: rebrand.ly/9473SM

🚨Can we use standard D‑dimer thresholds in postpartum patients? How should we manage suspected PE during the postpartum period? Our JTH Research Recap dives into this topic! 📰Read the paper: www.jthjournal.org/article/S1538-7836(26)00333-8/fulltext 📽️Watch the recap: www.youtube.com/watch?v=w6-p...

New ISTH Pulse Podcast episode! In “Beyond the platelet count: Understanding the real impact of ITP,”our guests explore why immune thrombocytopenia (ITP) is about much more than laboratory results. Listen here: soundcloud.com/isth_thepuls...

Children with #VWD deserve individualized care. Strengthen your approach to pediatric diagnosis, treatment selection, and real-world management with this free educational activity: rebrand.ly/9476SM #PedsHeme #MedEd #Hemostasis

What happens when a patient experiences thrombosis despite taking a direct oral anticoagulant? Join our upcoming webinar, “Breakthrough Thrombosis in DOACs: What to Do Next,” for expert guidance. Register: bit.ly/4vXa12Q

Proud to deliver the Sylviane Lévy-Toledano Memorial Plenary Keynote Lecture at the 34th ISTH Congress in Paris—and deeply grateful to my outstanding research group, whose dedication, creativity, and excellent work made this possible.

🎥 Nouvelle capsule vidéo #ISTH2026 ! Mickael Rosa, lauréat de la bourse congrès #MHEMO, revient sur la session Mechanisms of inherited thrombocytopenias et partage les avancées scientifiques qui l’ont le plus marqué. vimeo.com/1209223955

🎥 Nouvelle capsule vidéo #ISTH2026 ! Charlotte Bocquet, lauréate de la bourse congrès #MHEMO, revient sur la session SSC 10 – Platelets in Health and Disease… avec la Tour Eiffel en arrière-plan ! 🇫🇷 👏 Merci à Charlotte, ainsi qu’à Annabelle Dupont pour son soutient vimeo.com/1209412526

Our poster on this very topic is now up at #ISTH2026 Go and speak to the excellent Vicky Speed about the lovely OpenPrescribing.

📌 #ISTH2026 Le poster de Charlotte Bocquet, lauréate de la bourse congrès #MHEMO, a attiré de nombreux visiteurs et donné lieu à de riches discussions scientifiques. 👏 Félicitations à Charlotte pour cette belle présentation ! #Hemostasis #RareDiseases #Research

Following participants over time reveals what single studies can't. At #ISTH2026, ATHN shared one of its first analyses linking ATHN 8 and ATHN Transcends, demonstrating increased prophylaxis use over time in people with moderate hemophilia. #RealWorldEvidence #BleedingDisorders #ATHN

More from our posters on display at #ISTH2026 🇫🇷 🔵 PB 3294: Insights from a wide cohort of adults with #haemophilia who participated in our Learning 2 Live study 🔴 PB 2738 & 2743: More results from GT360, on the impact of living with #GlanzmannThrombasthenia #ISTHCongress

The past few days have been brilliant. Sharing my work, including a new psychosocial gene therapy framework, with the amazing @katekhair.bsky.social and @haemnet.bsky.social in Paris at #ISTH2026 has been an honour.

Thank you to everyone who stopped by to connect with the AC Forum team at #ISTH2026 🌍 We’re grateful for the thoughtful conversations, new connections, & new members who joined us onsite. Explore resources and education anytime on our site: bit.ly/4axernA Safe travels, and see you at #ISTH2027 ✈️

Our sincere thanks to Megan Preece for presenting APS research at #ISTH2026 and recognising APS Support UK’s travel grant. We also thank Hemostasis Today for sharing Megan’s work and helping to raise awareness of #APS: hemostasistoday.com/voices/megan... @imperialcollegeldn.bsky.social

🚨 Last chance! Applications for SSC Subcommittee Co-Chair positions close Friday, July 31. Co-Chairs help lead important projects focused on standardization, nomenclature and clinical guidance in thrombosis and hemostasis: survey.alchemer.com/s3/8853620/2026-SSC-Subcommittee-Co-chair-Application

Okay I’ve been in Paris for a week, I guess it’s time I got back to work. Who’s here for #isth2026? What are you presenting? What are you looking forward to? @isth.org #hemesky

So proud of this work. #ISTH2026 @thelancet.com @isth.org @btsamuelsonmd.bsky.social

International Society on Thrombosis and Haemostasis @isth.org 2026 in Paris, July 11-15: Poster communication of Estelle Archer, PhD student, on "Heparin-induced thrombocytopenia (HIT): towards a more performant serotonin release assay (SRA) using polyvinyl sulfonate (PVS) in place of heparin"

International Society on Thrombosis and Haemostasis @isth.org 2026 in Paris, July 11-15: Oral communication of Simon Chesseron, PhD student, on "Platelet factor 4 and cardiac fibrosis: pathophysiological and therapeutic implications"

Great ISTH congress in Paris, amazing science and so nice to catch out with colleagues and friends 👩‍🔬🧬🧪💯 @isth.org @ageinves.bsky.social #ISTH2026

Every postcard from the #ISTH2026 postbox is now on its way to bring a smile to someone’s mailbox. From our Paris-loving Captain, to the Hemostasis Macaron Collection, and our Captina shopping adventure—each design shared a little piece of Technoclone. ❤️ @isth.org #nexteraofhemostasistesting

Had a great time partnering with THANZ at ISTH2026 @isth.org catching up with Australian haematologists and researchers and seeing what they were up to at ISTH. Looking forward to next year #HemeSky open.spotify.com/episode/0wJD...

Help shape the future of clinical guidance in thrombosis and hemostasis! Submissions should address a high-priority need in the field, have a clearly defined scope and be supported by sufficient high-quality evidence Submit your proposal: bit.ly/4bfU2Wh

We’re excited to welcome Vishakha K. Kumar as the new Executive Director/CEO of the International Society on Thrombosis and Haemostasis! Join us in welcoming Dr. Kumar! Learn more: bit.ly/4yN9FyE

Attention #ISTH2026 first timers: Be sure to check out our guide to make the most of your Congress experience: www.isthcongress.org/_files/ugd/5...

👇 Don't overlook this excellent resource to help you prepare for #ISTH2026. These brief discussions will keep you informed, inspired, and ready to make the most of your Congress experience in Paris.

Attending #ISTH2026? Check your email for registration information and badge pickup!

The #ISTH2026 Congress will feature research unveiled in real time! We're excited to highlight the simultaneous publications to be presented at the Congress. Learn more: www.isthcongress.org/simultaneous-publications

🎧 Your daily guide to #ISTH2026 is just a play button away! Each morning in Paris, we’re dropping a new episode packed with the sessions, events and highlights you need to know before your day begins. Be sure to follow us on your preferred platform and turn on notification: pod.link/1555328920

👇Great tip for anyone attending #ISTH2026. Previewing the abstracts early is a smart way to identify high-interest topics, plan your schedule, and make networking even more meaningful once you’re onsite.

Our #ISTH2026 Congress program offers exciting opportunities for participants to learn about the latest research, product developments, and other scientific activities through Supported Symposia and Presentation Theaters. Learn more here and plan to attend: www.isthcongress.org/symposia

A heartfelt thank you to our Platinum, Gold Silver and Bronze supporters for helping make #ISTH2026 possible. Your partnership plays a vital role in advancing education, innovation and collaboration in thrombosis and hemostasis. Learn more about our supporters: www.isthcongress.org/supporters

NEW: The full #ISTH2026 abstracts are available on the online program and the ISTH 2026 app. View and search for the abstracts from the abstracts tab or access them directly from the presentation listings. In the app, go to schedule > select "abstracts" from the top drop-down menu.

New BSH guideline out now: Providing healthcare professionals with clear practical and technical guidance for estimating the volume of target red blood cells in an individual's circulation when using acid elution (AE) and flow cytometry (FC) methods: b-s-h.org.uk/guidelines/g...

🎉 Exciting news for #ISTH2026: A NEW SSC session! Join Livers Clot Talent to win unique prizes during the session of the Scientific Subcommittee on Hemostasis & Thrombosis in Liver disease on July 13 at 16:30. Test your knowledge of management of bleeding & thrombosis in patients w/liver disease.

🎉 Please join us in congratulating the recipients of the 2026 ISTH Fundamental Research Career Development Awards! These awards recognize outstanding early career investigators whose innovative research is helping shape the future of thrombosis and hemostasis:⁠ www.isth.org/news/729904/...

The ISTH G&G Committee announces the guidance manuscript: “Use of Factor Concentrates for the Management of Perioperative Bleeding,” is open for public comment! Submit: survey.alchemer.com/s3/8894176/P...

The ISTH Fundamental Research Workshop Grants support small, international meetings designed to advance basic and translational science. 💡Up to 3 grants awarded annually 💰Up to $50,000 USD each 📅 Applications close August 15 Apply today: www.isth.org/page/Worksho...

Help shape the future of platelet autoantibody testing! Participate in the new global SSC survey to document current practices in both glycoprotein-specific and non-specific platelet antibody assays: bit.ly/4vBtXZG

At the conclusion of #ISTH2026, Jerrold H. Levy will begin his term as ISTH SSC Chair for 2026–2028. Following two years of dedicated leadership as SSC Vice Chair alongside SSC Chair Kathleen Freson, Levy will guide the SSC into its next chapter!

✨ There’s so much to discover at #ISTH2026. Make room in your schedule for Supported Symposia, the New Frontier Forum and other engaging sessions designed to spark ideas and conversation. Explore the program: www.isthcongress.org/program

The ISTH G&G Committee announces the guidance manuscript, “Long Term Management and Secondary Prevention in APS Acute Ischaemic Stroke, Transient Ischaemic Attack or Other Brain Ischaemic Injury” is open for public comment. Submit comments by July 2: survey.alchemer.com/s3/8883964/P...

We invite colleagues throughout Europe to take part in this survey and share their experiences, challenges, and perspectives. Your feedback can influence future stewardship initiatives and improve antithrombotic care across healthcare systems. 👇

🎙️ New ISTH Pulse Podcast episode: David Ginsburg, a recipient of the 2026 ISTH Outstanding Mentor Award, and his longtime mentee and colleague Randal Westrick discuss their mentorship journey spanning more than 30 years: soundcloud.com/isth_thepuls...