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Hemophilia B clinical trials in Philadelphia, PA

5 studies for Hemophilia B are looking for participants at sites in and around Philadelphia (within about 30 miles). Open a study to see who can join and how to contact the study team.

Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →

Safety and Effectiveness of Giroctocogene Fitelparvovec or Fidanacogene Elaparvovec in Patients With Hemophilia A or B Respectively

RecruitingPhase 3
  • The Childrens Hospital of Philadelphia Division of Hematology, Philadelphia
  • The Childrens Hospital of Philadelphia Division of Hematology, Philadelphia
Ages 18 and older · Men · Updated Oct 2, 2026 · NCT05568719

A Study to Investigate the Safety and Effectiveness of a Coagulation Factor IX Gene Insertion Therapy (REGV131-LNP1265) in Pediatric, Adolescent and Adult Participants With Hemophilia B

RecruitingPhase 1/2
  • Children's Hospital of Philadelphia (CHOP), Philadelphia
Ages 2 and older · Men · Updated Sep 11, 2026 · NCT06379789

ATHN Transcends: A Natural History Study of Non-Neoplastic Hematologic Disorders

RecruitingObservational study
  • Children's Hospital of Philadelphia, Philadelphia
  • Penn Comprehensive Hemophilia and Thrombophilia Program/Hospital of the University of Pennsylvania, Philadelphia
  • St. Christopher's Hospital for Children, Philadelphia
  • and 1 more
All ages · All sexes · Updated Aug 17, 2026 · NCT04398628

A Study of Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of SR604 in Two Participants Groups (Part A: Healthy Participants, and Part B: Participants With Hemophilia A or Hemophilia B or Factor VII Deficiency)

RecruitingPhase 1Healthy volunteers welcome
  • Perelman Center for Advanced Medicine (PCAM)- Penn Blood Disorders Program, Philadelphia
Ages 18 to 60 · All sexes · Updated Jul 2, 2026 · NCT06349473

Open-Label Extension Study of Marstacimab in Hemophilia Participants With or Without Inhibitors

RecruitingPhase 3
  • The Feinstein Institutes for Medical Research, Philadelphia
Ages 1 to 74 · Men · Updated Jul 1, 2026 · NCT05145127

Hemophilia B trials in other cities

Other studies in Philadelphia

From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.