For many children with rare or hard-to-treat conditions, research provides an opportunity for patients, families, providers, and scientists to better understand the disease, how to manage it, and potentially to develop new treatment options. There are dozens of clinical trials currently open and listed on clinicaltrials.gov for patients with bleeding disorders. We offer clinical studies in hemophilia, von Willebrand disease, and young women with bleeding disorders that are developed and led at our center, as well as those sponsored by other institutions and pharmaceutical companies.