Study of blood clots in hospitalized COVID-19 patients

This study looks at blood clot–related complications after COVID-19 (and in some cases flu) in adults admitted to the hospital. It may help doctors better understand and manage these complications.

This study tracks bleeding, clotting problems, and blood transfusion needs in ICU patients with COVID-19 who are on a special heart-lung machine called V-V ECMO. It helps doctors understand how to better care for these very ill patients.

This study follows adults who are in the hospital (including the emergency ward) with a confirmed COVID-19 infection. It aims to learn how COVID-19 affects people in the hospital and how different cases may differ over time.

This study follows patients who have had a blood clot in their leg or lung to learn more about their health over time. It helps doctors understand how to better care for people with blood clots.

This study looks closely at how your immune system responds during COVID-19. It may help researchers better understand why COVID-19 varies from person to person and how to improve future care.

This research study looks at how often blood clots form around long-term catheters (thin tubes placed in veins) in hospitalized patients. The study uses ultrasound to check for clots and may help doctors understand and prevent this complication.