Recruiting Studies
Advanced SearchData: ClinicalTrials.gov · Source of record for eligibility and locations
Top Cities for Hemophilia Clinical Trials
Hemophilia clinical trials are recruiting across 55 cities. Here are the cities with the most active studies:
Hemophilia Trial Phases
17 research organizations are sponsoring hemophilia trials.
About Hemophilia
Hemophilia is a rare genetic bleeding disorder in which blood does not clot properly due to deficiency of clotting factors. Hemophilia A (factor VIII) and hemophilia B (factor IX) are the most common types. Treatment includes factor replacement therapy and newer approaches like gene therapy.
Clinical trials are advancing new treatments for hemophilia. Currently, 30 studies are recruiting a combined 202,912 participants across the United States. Research is being conducted by 17 organizations including American Thrombosis and Hemostasis Network, CSL Behring, University of Washington and 14 others.
2026 Hemophilia Research Landscape
As of August 2026, the hemophilia clinical trial landscape includes 30 actively recruiting studies across 55 cities in the United States. These studies are collectively seeking 202,912 participants, with an average enrollment target of 6,764 per study.
The research spans multiple phases of development: 9 studies are in PHASE3, 8 studies are in PHASE1, 6 studies are in PHASE4, 4 studies are in PHASE2. The presence of Phase 3 trials indicates that some hemophilia treatments are in late-stage testing and may be approaching regulatory review.
Research is being led by 17 different organizations, including American Thrombosis and Hemostasis Network, CSL Behring, University of Washington, Hoffmann-La Roche, Pfizer, and 12 others. The large number of sponsors reflects significant research interest and investment in hemophilia treatment advancement.
Geographically, hemophilia trials are most concentrated in Los Angeles, California (8 trials); Indianapolis, Indiana (7 trials); Seattle, Washington (5 trials); Orange, California (5 trials); Iowa City, Iowa (5 trials) and 7 other cities.
Featured Hemophilia Studies
Highlighted recruiting studies for hemophilia, selected by enrollment size and research scope.
ATHNdataset Registry
The Hemophilia Treatment Center (HTC) where you receive care is working with The American Thrombosis and Hemostasis Network (ATHN) to look at the quality of life of people with blood disorders and problems. Doctors, scientists, policymakers, and other health care providers need a large amount of information from a lot of people to answer scientific, public health, and policy questions about bette...
An Observational Cohort Study to Characterize the Effectiveness and Safety of HEMGENIX® in Patients With Hemophilia B
This observational, post-authorization, long-term follow-up study aims to investigate the short and long-term effectiveness and safety of HEMGENIX in patients with hemophilia B. The study will also include a cohort of patients with hemophilia B treated with FIX prophylaxis to enable interpretation of relevant efficacy and safety findings of HEMGENIX.
Hemophilia A Research Program
This study longitudinally observes the intergenerational (mother-child) continuum in hemophilia A from pregnancy through early childhood. Because the study follows mother-child pairs, the study includes both a maternal cohort and a pediatric cohort. Each cohort has a primary goal: for the mother with a severe hemophilia genotype, the overarching primary goal is to understand the risks for pregnanc...
Frequently Asked Questions About Hemophilia Clinical Trials
Are there hemophilia clinical trials near me?
Yes, there are 30 hemophilia clinical trials currently recruiting across 55+ cities in the United States, including Los Angeles, California; Indianapolis, Indiana; Seattle, Washington. Browse the studies above to find one at a location convenient for you.
How do I join a hemophilia clinical trial?
To join a hemophilia clinical trial: 1) Browse the available studies on this page, 2) Click on a study that interests you, 3) Check the study locations to find a site near you, 4) Review the eligibility criteria, and 5) Contact the study site or complete the eligibility form. The process is free and you can withdraw at any time.
Are hemophilia clinical trials free?
Yes, participation in hemophilia clinical trials is free. Study-related treatments, medical tests, and doctor visits are provided at no cost to participants. Many studies also offer compensation for your time and travel expenses.
What types of hemophilia treatments are being studied?
Current hemophilia clinical trials are testing a range of approaches across PHASE3 (9 studies), PHASE1 (8 studies), PHASE4 (6 studies), PHASE2 (4 studies). These include new drugs, combination therapies, medical devices, and other interventions sponsored by 17 research organizations.
Is it safe to participate in hemophilia clinical trials?
Clinical trials are carefully regulated by the FDA and institutional review boards (IRBs). All trials must follow strict safety protocols, and participants receive close medical monitoring throughout the study. You can withdraw from a trial at any time without penalty.
Data updated August 30, 2026 from ClinicalTrials.gov
About This Data
Data: ClinicalTrials.gov · Source of record for eligibility and locations
Clinical trial information on this page is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health (NIH) and National Library of Medicine (NLM). Study data is refreshed every hour to ensure accuracy.
Medical Disclaimer: The information provided on this page is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare provider before making decisions about clinical trial participation or changes to your treatment plan.
Page reviewed by the HelloStudys Research Team · Last updated August 30, 2026 · Data from ClinicalTrials.gov