The National Alliance for Thrombosis and Thrombophilia



Commit to help NBCA spread the word about the danger of blood clots. Mobilize family, friends and your circle of sports enthusiasts or couch potatoes to join Team Stop The Clot!

By participating in or supporting a local event, you can make a real difference in the lives of Americans by sending a powerful message of hope and help us Stop The Clot. We need your support to help fight this silent killer.

The National Blood Clot Alliance works to educate and raise awareness about blood clots and clotting disorders. In the United States alone, several hundred thousand people die each year from blood clots. Most of these lives could have been saved if more patients and health professionals knew about the risks, symptoms and treatments associated with blood clots and clotting disorders. 

Contact Judi Kaplan Elkin, Director of Development & Regional Affairs at for more information. 



About the National Blood Clot Alliance


The National Blood Clot Alliance (NBCA) is a patient-led, voluntary health advocacy organization. NBCA volunteers include many of the nation’s foremost experts on blood clots and blood clotting disorders.

NBCA programs include patient education and professional training on the signs, symptoms and prevention of blood clots and clotting disorders.

NBCA combines the unique perspectives of healthcare providers, individuals afflicted with clotting disorders and community leaders who are passionate about this healthcare crisis. NBCA’s Medical and Scientific Advisory Board (MASAB) includes nationally recognized experts on thrombosis and thrombophilia

We are grateful to all who wish to raise awareness and funds in support of those who suffer from blood clots and clotting disorders.  Together we can Stop The Clot!