Better data leads to better care. At ATHN, we partner with the blood disorders community, government, and industry by providing technology to manage data, support research, measure outcomes--and ultimately improve care.

Our Top Stories


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  • ATHN Transcends
    ATHN Transcends is a natural history cohort study focused on participants with congenital or acquired non-neoplastic blood disorders and connective tissue disorders with bleeding tendencies. ATHN Transcends provides clinical researchers with a uniform, secure, unbiased, and enduring method to collect long-term safety and efficacy data to increase knowledge in these important areas of research.
  • Electronic Informed Consent (eIC) and ATHN 9
    ATHN’s new eConsent portal will facilitate and streamline the informed consent process for patients in ATHN studies. The eConsent portal is currently only available for participants enrolling in ATHN 9.

National Projects

  • AI/Machine Learning Research Grant
    Pfizer has awarded ATHN a grant to research at the provider level hemophilia patients who are at risk for poor outcomes. The proposal will utilize a combination of machine learning and artificial intelligence (AI) to create a predictive model and share that knowledge with ATHN Affiliates. Contact for more information.
  • ATHNdataset
    Researchers rely on data from this vital community resource for a variety of ATHN research projects. Learn more about this safe, secure national database.
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    ATHN Data Quality Counts
    This competitive award is supported by The Hemophilia Alliance, The Alliance Pharmacy, and Indiana Hemophilia & Thrombosis Center and provides funding to enrich the ATHNdataset.
Access the full catalogue of ATHN works in a new, easy-to-search site.

Featured Publications

Transition of Care for Pediatric and Adult Patients with Venous Thromboembolism: A National Quality Improvement Project from the American Thrombosis and Hemostasis Network (ATHN) published in Thrombosis Research. Download full article
Characterizing the Use of Anticoagulants in Children Using the American Thrombosis and Hemostasis Network Dataset (ATHNdataset) published in Thrombosis Research. Download full article
A Cross-Sectional Study of Women and Girls with Congenital Bleeding Disorders: The American Thrombosis and Hemostasis Network (ATHN) Cohort is the largest cohort of women and girls with bleeding disorders to date. Download full article