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Hemophilia clinical trials in California
14 studies for Hemophilia are looking for participants at sites in California.
Cities in California
Safety and Effectiveness of Giroctocogene Fitelparvovec or Fidanacogene Elaparvovec in Patients With Hemophilia A or B Respectively
- The Regents of the University of California||UC Davis Health, Rancho Cordova
- UC Davis Health, Sacramento
- UC Davis Ambulatory Care Clinic, Sacramento
- and 3 more
RecruitingPhase 3
Ages 18 and older · Men · Updated Oct 2, 2026 · NCT05568719A Study to Test a Medicine (Fitusiran) for Preventing Bleeds in People With Severe Hemophilia Who Previously Received Preventive Treatment With Emicizumab
- Children's Hospital Los Angeles- Site Number : 8400005, Los Angeles
RecruitingPhase 4
Ages 12 and older · Men · Updated Sep 23, 2026 · NCT06145373A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Efficacy of NXT007 in Persons With Severe or Moderate Hemophilia A
- UC Davis Cancer Center, Sacramento
RecruitingPhase 1/2
Ages 2 to 59 · Men · Updated Sep 11, 2026 · NCT05987449A Gene Therapy Study of SPK-8011QQ in Adults With Severe or Moderately Severe Hemophilia A
- Center for Inherited Blood Disorders, Orange
- University of California San Francisco, San Francisco
- Kaiser Permanente, Vallejo
RecruitingPhase 1/2
Ages 18 and older · Men · Updated Sep 11, 2026 · NCT07226206A Clinical Study to Evaluate the Effects of NXT007 Compared to Emicizumab Prophylaxis in People With Hemophilia A
- Center for Inherited Blood Disorders, Orange
RecruitingPhase 3
Ages 12 and older · All sexes · Updated Sep 4, 2026 · NCT07416604Pharmacokinetics, Pharmacodynamics, and Safety Profile of Understudied Drugs Administered to Children Per Standard of Care (POPS)
- Lucile Packard Children's Hospital, Palo Alto
RecruitingObservational studyHealthy volunteers welcome
Ages 0 to 20 · All sexes · Updated Aug 21, 2026 · NCT04278404ATHN Transcends: A Natural History Study of Non-Neoplastic Hematologic Disorders
- Orthopaedic Institute for Children HTC, Los Angeles
- Childrens Hospital Los Angeles, Los Angeles
- UCSF Benioff Children's Hospital Oakland, Oakland
- and 5 more
RecruitingObservational study
All ages · All sexes · Updated Aug 17, 2026 · NCT04398628A Study to Investigate the Efficacy and Safety of Fitusiran Prophylaxis in Male Participants Aged 1 to Less Than 12 Years With Hemophilia A or B
- The Luskin Orthopaedic Institute for Children- Site Number : 8400013, Los Angeles
- The Center for Inherited Blood Disorders- Site Number : 8400009, Orange
RecruitingPhase 3
Ages 1 to 11 · Men · Updated Aug 17, 2026 · NCT07285460Prevention of Bleeding in Patients With Moderate and Severe Hemophilia A Playing Sports: A Comparison Between Factor VIII and Emicizumab Prophylaxis
- Stanford University, Palo Alto
- Rady Children's Hospital, San Diego
RecruitingObservational study
Ages 6 to 19 · All sexes · Updated Jul 2, 2026 · NCT05022459A 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)
- Children's Hospital Los Angeles, Los Angeles
RecruitingPhase 1Healthy volunteers welcome
Ages 18 to 60 · All sexes · Updated Jul 2, 2026 · NCT06349473A Study to Learn About How Changing Therapy From Emicizumab to Marstacimab Affects People With the Severe Hemophilia A.
- Orthopaedic Institute for Children/Orthopaedic Hemophilia Treatment Center, Los Angeles
RecruitingPhase 1
Ages 12 to 74 · Men · Updated Jun 3, 2026 · NCT06703606Emicizumab for Severe Von Willebrand Disease (VWD) and VWD/Hemophilia A
- The Center for Comprehensive Care and Diagnosis of Inherited Blood Disorders (CIBD), Orange
- Stanford University: Stanford Children's Health, Redwood City
RecruitingPhase 1
Ages 0 to 90 · All sexes · Updated Apr 3, 2026 · NCT05500807SEVENFACT® for Bleeding Events in Hemophilia With Inhibitors
- Orthopaedic Institute for Children, Los Angeles
- University of California at Davis UC Davis Hemostasis and Thrombosis Center, Sacramento
RecruitingPhase 4
Ages 12 to 100 · All sexes · Updated Jan 12, 2026 · NCT04647227Efanesoctocog Alfa Prophylaxis in Patients With Hemophilia A With Synovial Hypertrophy
- Orthopedic Institute for Children- Site Number : 8400009, Los Angeles
RecruitingPhase 4
Ages 12 and older · All sexes · Updated Nov 18, 2025 · NCT06941870From ClinicalTrials.gov, data retrieved Oct 5, 2026. Each study sets its own eligibility; the study team decides who can join.