Congenital factor XII deficiency

This study looks at whether adding a drug called Wilate (a von Willebrand factor concentrate) to standard platelet transfusions can reduce bleeding and the need for more blood products in intensive care patients. About 120 adults who need platelets during or after surgery will be…

This study follows 300 teens and young adults (ages 10-24) with inherited bleeding disorders who choose either a levonorgestrel IUD or norethindrone acetate pills for heavy menstrual bleeding. Researchers will track bleeding patterns, satisfaction, and quality of life over six mo…

This study is checking if a computer model can accurately predict why some people have a prolonged blood clotting time (APTT). The model uses data from routine blood tests to tell if the cause is harmless or a sign of a clotting disorder. Researchers will test it on 1,500 patient…

This study follows 163 teens and young adults with heavy menstrual bleeding, some with a bleeding disorder and some without, to see how well hormonal treatments like the pill, patch, or IUD work. Researchers will measure blood loss, quality of life, and iron levels over time. The…

This study is a large registry that collects health information from up to 200,000 people with blood disorders such as hemophilia, thrombosis, and sickle cell disease. Participants are seen at Hemophilia Treatment Centers across the U.S. The goal is to gather real-world data to h…

This study looks at how well hip, knee, shoulder, and other joint replacement surgeries work in adults with inherited bleeding disorders like hemophilia. Researchers will collect information from medical records and follow patients over time to understand risks, complications, an…

This study creates a registry to collect data on dengue infections in people with congenital bleeding disorders like hemophilia. Dengue can cause serious bleeding, and those with bleeding disorders may face higher risks. The goal is to understand bleeding complications, treatment…

This study looks at 50 adults with unexplained bleeding to see if low serotonin levels in their platelets are linked to their symptoms. Researchers will use a standard bleeding questionnaire to measure bleeding severity. The goal is to better understand how serotonin deficiencies…

This study looks at how blood cells interact and what goes wrong in inherited bleeding disorders like Glanzmann thrombasthenia. Researchers will analyze blood samples from up to 60 healthy volunteers and patients to find genetic defects. The goal is to better understand these con…