Clinical trials
Hemophilia A clinical trials
Below are recruiting hemophilia a clinical trials, each written for real people, not researchers. We’re tracking 92 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07226206RecruitingPhase 1/Phase 2
Gene therapy for adults with severe hemophilia A
This trial tests a new gene therapy called SPK-8011QQ for adults with severe or moderately severe hemophilia A. The goal is to see if a single infusion can help your body produce its own factor VIII, reducing or stopping the need for regular factor VIII injections.
Orange, CaliforniaAges 18 years+ - NCT04023019Recruiting
Hemophilia A trial for people with FVIII inhibitors
This trial studies a treatment approach for people with hemophilia A who develop antibodies (inhibitors) that block clotting factor FVIII. It may help those whose usual FVIII therapy is not working because of these inhibitors.
Atlanta, GeorgiaAges Any age - NCT04131036Recruiting
Compare emicizumab and factor VIII for joint and bone health
This study compares two preventive treatments for severe hemophilia A—emicizumab versus factor VIII—to see how they affect joint and bone health. It may help you and others understand which option better protects joints and bones over the next several years.
Los Angeles, CaliforniaAges 16 years+ - NCT04567511RecruitingPhase 4
Hemlibra for mild hemophilia A patients
This trial studies Hemlibra (emicizumab) in people with mild congenital hemophilia A to see how well it works and what safety issues may occur. It may help reduce bleeding in patients who meet the study’s specific health and safety requirements.
Indianapolis, IndianaAges 5–45 - NCT04676048RecruitingPhase 1/Phase 2
Gene therapy study for adults with hemophilia A
This Phase 1/2 study tests a one-time gene therapy (ASC618) to help the body make clotting factor for people with hemophilia A. It may reduce bleeding and the need for factor infusions, but you must meet several safety and eligibility checks.
Little Rock, ArkansasAges 18 years+ - NCT04728841Recruiting
Gene therapy trial for Chinese hemophilia A
This trial tests a one-time gene therapy treatment (GS001) to help people with hemophilia A make more of the clotting factor they lack. If it works and is safe for you, it could improve how well blood clots form over time.
Tianjin, Tianjin MunicipalityAges 18 years+ - NCT04817462Recruiting
Liver biopsy in people with haemophilia gene therapy
This study takes a small liver tissue sample (a liver biopsy) in men who previously received haemophilia gene therapy. The goal is to learn more about how the gene therapy works and how safe it is for the liver.
LondonAges 18–80 - NCT05454774RecruitingEarly Phase 1
Gene therapy for adults with severe hemophilia A
This early-phase study tests an FVIII gene therapy to help your body make more of the missing clotting factor in hemophilia A. It’s aimed at adults with severe low FVIII levels who have already used FVIII replacement products for a long time and have not developed an immune blocker (an inhibitor).
Tianjin, Tianjin MunicipalityAges 18 years+ - NCT05630651Recruiting
ZS801 for adults with severe hemophilia B
This trial studies ZS801, a gene therapy, in adults with hemophilia B who have very low natural FIX (a clotting protein) and frequent bleeding or joint problems. It aims to see how well it works and whether it is safe, especially by monitoring blood counts, infections, and immune responses.
Tianjin, Tianjin MunicipalityAges 18–65 - NCT05641610RecruitingPhase 1/Phase 2
Study drug for adults with hemophilia B who still bleed
This Phase 1/2 study tests ZS801, a gene-related treatment, to see how safe it is and whether it helps prevent bleeding in adults with hemophilia B. You may be considered if you’ve had frequent bleeds or joint problems and meet several lab and health requirements.
Tianjin, Tianjin MunicipalityAges 18 years+ - NCT05709288RecruitingPhase 1
Gene therapy for teens with hemophilia B
This Phase 1 study tests a one-time gene therapy treatment (BBM-H901) for boys ages 12 to 18 with hemophilia B. It aims to see if the treatment is safe and can help the body make more clotting factor over time.
Tianjin, Tianjin MunicipalityAges 12–18 - NCT06008938Recruiting
Study tracking HEMGENIX for hemophilia B
This study watches how well HEMGENIX works and how safe it is for people with hemophilia B who are getting the treatment. It also compares data from adults on standard factor IX shots.
Rochester, New YorkAges 18 years+ - NCT06111638RecruitingPhase 2/Phase 3
Gene therapy for severe hemophilia A
This trial tests a gene therapy to help your body produce more of the clotting protein (factor VIII) it's missing. It may reduce or stop the need for regular factor infusions.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06120582RecruitingPhase 1/Phase 2
Gene therapy safety study for severe hemophilia B
This study tests a new gene therapy called ANB-002 for men with severe hemophilia B (factor IX levels at or below 2%). The goal is to see if it's safe and how well it might help your blood clot normally.
HomyelAges 18 years+ - NCT06145373RecruitingPhase 4
Fitusiran for preventing bleeds in severe hemophilia A
This study tests a new medicine called fitusiran to help prevent bleeding episodes in people with severe hemophilia A who are already receiving emicizumab. It may offer an additional treatment option for those with or without inhibitors.
Los Angeles, CaliforniaAges 12 years+ - NCT06147414Recruiting
Blood test for genetic disorders in pregnancy
This study tests a safer blood test to check for certain genetic disorders during pregnancy, instead of an invasive procedure like amniocentesis. It's for pregnant women who are at risk of passing on a known genetic condition.
ParisAges 18 years+ - NCT06222697Recruiting
Safety study of Jivi for hemophilia A in Korea
This study is checking the safety of Jivi (a Factor VIII medicine) when used in normal medical care for people with hemophilia A in Korea. It is for anyone 12 or older who has used Factor VIII before or is starting Jivi as part of their regular treatment.
Multiple LocationsAges 12 years+ - NCT06238908RecruitingEarly Phase 1
Gene therapy NGGT003 for severe hemophilia A
This early-phase trial tests a new gene therapy called NGGT003 for men with severe hemophilia A. It aims to see if the treatment is safe and can help reduce bleeding episodes.
Tianjin, Tianjin MunicipalityAges 18 years+ - NCT06352216Recruiting
Joint inflammation in hemophilia A patients
This study looks at how many adults with moderate or severe hemophilia A have inflammation in their joints (synovitis). It aims to better understand joint health in people with hemophilia A, including those with inhibitors or joint replacements.
Bonn, North Rhine-WestphaliaAges 18 years+ - NCT06684314Recruiting
Efanesoctocog alfa for long-term joint health in hemophilia A
This study tests how well a new factor VIII medicine, efanesoctocog alfa, protects your joints over time. It's for people with moderate or severe hemophilia A who are just starting this treatment.
ChanghuaAges Any age - NCT06700096RecruitingPhase 3
Testing a new drug for adults with severe hemophilia B
This trial tests a single dose of ANB-002, an experimental therapy for hemophilia B. It aims to see if the drug is safe and effective for people with severe hemophilia B who have been treated with factor IX before and do not have inhibitors.
ChelyabinskAges 18 years+ - NCT06703606RecruitingPhase 1
Switching from Emicizumab to Marstacimab for Severe Hemophilia A
This study tests if switching from emicizumab to a new medicine called marstacimab is safe and effective for people with severe hemophilia A. You must have been on emicizumab for at least 6 months and not have a history of blood clots or heart disease.
Los Angeles, CaliforniaAges 12–74 - NCT05987449RecruitingPhase 1/Phase 2
Study of NXT007 for severe or moderate hemophilia A
This trial tests a new medicine called NXT007 to see if it is safe and effective for people with severe or moderate hemophilia A, including those with inhibitors. It may help reduce bleeding episodes.
Sacramento, CaliforniaAges 2–59 - NCT07682519Recruiting
Home vs. in-person rehab for hemophilia pain
This study compares a rehabilitation program you can do at home using video calls (telerehabilitation) with in-person rehabilitation sessions. The goal is to see if the home-based option works as well as office visits for reducing chronic joint pain in adults with hemophilia.
Santiago, Santiago MetropolitanAges 18–60
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Common questions
- Are there clinical trials for hemophilia a?
- Yes. Clin2 currently lists 92 recruiting hemophilia a studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a hemophilia a trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a hemophilia a trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.