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Hemophilia B clinical trials in Washington
3 studies for Hemophilia B are looking for participants at sites in Washington.
Cities in Washington
Safety and Effectiveness of Giroctocogene Fitelparvovec or Fidanacogene Elaparvovec in Patients With Hemophilia A or B Respectively
- Washington Institute for Coagulation, Seattle
RecruitingPhase 3
Ages 18 and older · Men · Updated Oct 2, 2026 · NCT05568719ATHN Transcends: A Natural History Study of Non-Neoplastic Hematologic Disorders
- Washington Center for Bleeding Disorders, Seattle
RecruitingObservational study
All ages · All sexes · Updated Aug 17, 2026 · NCT04398628Open-Label Extension Study of Marstacimab in Hemophilia Participants With or Without Inhibitors
- Washington Institute for Coagulation d/b/a WACBD, Seattle
RecruitingPhase 3
Ages 1 to 74 · Men · Updated Jul 1, 2026 · NCT05145127From ClinicalTrials.gov, data retrieved Oct 5, 2026. Each study sets its own eligibility; the study team decides who can join.