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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Factor IX (FIX) Clear all
Terminated Phase 1 Interventional Results available

Ascending Dose Study of Genome Editing by Zinc Finger Nuclease Therapeutic SB-FIX in Subjects With Severe Hemophilia B

NCT02695160
View directory record Official record
Conditions
Hemophilia B
Interventions
SB-FIX
Biological
Lead sponsor
Sangamo Therapeutics
Industry
Eligibility
18 Years and older · Male only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 18, 2024 · Synced Sep 23, 2026, 11:57 PM EDT
Terminated Phase 3 Interventional Results available

Study of Recombinant Factor IX Product, IB1001, in Previously Treated Pediatric Subjects With Hemophilia B

NCT01271868
View directory record Official record
Conditions
Hemophilia B
Interventions
IB1001
Biological
Lead sponsor
Medexus Pharma, Inc.
Industry
Eligibility
Up to 12 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
3
States / cities
Chicago, Illinois • Indianapolis, Indiana • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 14, 2021 · Synced Sep 23, 2026, 11:57 PM EDT
Completed Phase 3 Interventional Results available

Study of Recombinant Factor IX Fc Fusion Protein (rFIXFc) in Participants With Hemophilia B

NCT01027364
View directory record Official record
Conditions
Severe Hemophilia B
Interventions
Factor IX (rFIXFc), rFIX
Drug
Lead sponsor
Bioverativ Therapeutics Inc.
Industry
Eligibility
12 Years and older · Male only
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
9
States / cities
Phoenix, Arizona • Sacramento, California • Aurora, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 18, 2020 · Synced Sep 23, 2026, 11:57 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

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)

NCT06349473
View directory record Official record
Conditions
Healthy Participants, Hemophilia A, Hemophilia B, Factor VII Deficiency
Interventions
SR604, Placebo
Drug
Lead sponsor
Equilibra Bioscience LLC
Industry
Eligibility
18 Years to 60 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
9
States / cities
Glendale, California • Los Angeles, California • Chicago, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 23, 2026, 11:57 PM EDT
Terminated Phase 1Phase 2 Interventional

Safety of a New Type of Treatment Called Gene Transfer for the Treatment of Severe Hemophilia B

NCT00076557
View directory record Official record
Conditions
Hemophilia B
Interventions
Adeno-Associated Viral with Human Factor IX
Genetic
Lead sponsor
Avigen
Industry
Eligibility
18 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
3
States / cities
Palo Alto, California • Philadelphia, Pennsylvania • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 3, 2007 · Synced Sep 23, 2026, 11:57 PM EDT
Terminated No phase listed Observational

Fc factOrs and Real-World hemophiliA Patient-ReporteD Outcomes

NCT02392156
View directory record Official record
Conditions
Hemophilia A, Hemophilia B
Interventions
rFVIIIFc, rFIXFc, non-Fc FVIII replacement products, non-Fc FIX replacement products
Biological · Drug
Lead sponsor
Bioverativ Therapeutics Inc.
Industry
Eligibility
Male only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
2
States / cities
Los Angeles, California • East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 18, 2020 · Synced Sep 23, 2026, 11:57 PM EDT
Completed Phase 3 Interventional Results available

A Study of Fitusiran (ALN-AT3SC) in Severe Hemophilia A and B Patients Without Inhibitors

NCT03417245
View directory record Official record
Conditions
Hemophilia A, Hemophilia B
Interventions
fitusiran, factor concentrates
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
12 Years and older · Male only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
8
States / cities
Little Rock, Arkansas • Gainesville, Florida • Tampa, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2022 · Synced Sep 23, 2026, 11:57 PM EDT
Active, not recruiting Phase 3 Interventional

A Study to Test a Medicine (Fitusiran) Injected Under the Skin for Preventing Bleeding Episodes in Male Adolescent or Adult Participants With Severe Hemophilia

NCT05662319
View directory record Official record
Conditions
Hemophilia
Interventions
Fitusiran, Clotting factor concentrates (CFC) or bypassing agents (BPA), Antithrombin concentrate (ATIIIC)
Drug
Lead sponsor
Sanofi
Industry
Eligibility
12 Years and older · Male only
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
8
States / cities
Orange, California • Minneapolis, Minnesota • Hackensack, New Jersey + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 23, 2026, 11:57 PM EDT
Completed No phase listed Observational

Andexanet Alfa and 4F-PCC Use in Patients Hospitalised With an Anticoagulant-related Major Bleed

NCT05548777
View directory record Official record
Conditions
Anticoagulant-related Major Bleed
Interventions
Andexanet alfa, 4F-PCC
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
5,480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Agoura Hills, California
Source: ClinicalTrials.gov public record
Updated Nov 27, 2023 · Synced Sep 23, 2026, 11:57 PM EDT
Recruiting Phase 4 Interventional

Hemlibra in Mild Hemophilia A

NCT04567511
View directory record Official record
Conditions
Factor VIII Deficiency, Congenital
Interventions
Emicizumab
Drug
Lead sponsor
Indiana Hemophilia &Thrombosis Center, Inc.
Other
Eligibility
5 Years to 45 Years · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 14, 2024 · Synced Sep 23, 2026, 11:57 PM EDT
Terminated Phase 1 Interventional

Hemophilia B Gene Therapy With AAV8 Vector

NCT01620801
View directory record Official record
Conditions
Hemophilia B
Interventions
AAV8-hFIX19
Biological
Lead sponsor
Spark Therapeutics, Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 11, 2019 · Synced Sep 23, 2026, 11:57 PM EDT
Active, not recruiting No phase listed Observational

A Trial That Evaluates Disease Characteristics in Hemophilia B Adult Male Participants Receiving Prophylaxis With Standard of Care Factor IX Protein (FIX) Replacement Therapy

NCT05568459
View directory record Official record
Conditions
Hemophilia B
Interventions
Non-Interventional
Other
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
16 Years and older · Male only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
9
States / cities
Aurora, Colorado • New Haven, Connecticut • Washington D.C., District of Columbia + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 23, 2026, 11:57 PM EDT
Not yet recruiting No phase listed Observational

Liver Biopsy Following Gene Therapy For Hemophilia

NCT05932914
View directory record Official record
Conditions
Hemophilia A, Hemophilia B
Interventions
Liver Biopsy
Procedure
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
18 Years to 80 Years · Male only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Sep 23, 2026, 11:57 PM EDT
Terminated No phase listed Observational Results available

Understanding Hemophilia A and B Drug Dosage Administration Patterns

NCT03248141
View directory record Official record
Conditions
Hemophilia A, Hemophilia B
Interventions
Hemophilia B standard half-life, Hemophilia B extended half-life, Hemophilia A standard half-life, Hemophilia A extended half-life
Drug
Lead sponsor
Pfizer
Industry
Eligibility
Not listed
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
3
States / cities
Gainesville, Florida • Las Vegas, Nevada • Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2019 · Synced Sep 23, 2026, 11:57 PM EDT
Completed No phase listed Observational

Bridging Hemophilia B Experiences, Results and Opportunities Into Solutions (B-HERO-S)

NCT02568202
View directory record Official record
Conditions
Haemostasis, Congenital Bleeding Disorder, Haemophilia B
Interventions
No treatment given
Other
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
18 Years and older
Enrollment
449 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Plainsboro, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 11, 2016 · Synced Sep 23, 2026, 11:57 PM EDT
Completed Early Phase 1 Interventional

Extended Half Life Factor (EHF) Products For Heavy Menstrual Bleeding in Hemophilia Carriers

NCT03272568
View directory record Official record
Conditions
Hemophilia, Menstrual Flow Excessive
Interventions
Recombinant FVIII Fc fusion product Eloctate, Recombinant FIX Fc fusion product Alprolix, Patient-operated diagnostic device for anemia AnemoCheck.
Drug · Device
Lead sponsor
Emory University
Other
Eligibility
14 Years to 55 Years · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 17, 2020 · Synced Sep 23, 2026, 11:57 PM EDT
Withdrawn Phase 3 Interventional

Study of Recombinant Factor IX Product, IB1001, in Previously Treated Subjects With Hemophilia B

NCT02048111
View directory record Official record
Conditions
Hemophilia B
Interventions
IB1001
Biological
Lead sponsor
Cangene Corporation
Industry
Eligibility
12 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 22, 2016 · Synced Sep 23, 2026, 11:57 PM EDT
Completed Phase 1 Interventional

A Trial Comparing Nonacog Beta Pegol (N9-GP) and ALPROLIX® in Patients With Haemophilia B

NCT03075670
View directory record Official record
Conditions
Congenital Bleeding Disorder, Haemophilia B
Interventions
N9-GP, ALPROLIX®
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
18 Years to 70 Years · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
7
States / cities
Phoenix, Arizona • Chicago, Illinois • Peoria, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated May 25, 2023 · Synced Sep 23, 2026, 11:57 PM EDT
Completed No phase listed Observational

Study to Describe the Allergic Reactions to Factor IX in Patients With Hemophilia B

NCT00195221
View directory record Official record
Conditions
Hemophilia B, Allergic Reactions
Interventions
Not listed
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
Not listed
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
15
States / cities
Phoenix, Arizona • Orange, California • Atlanta, Georgia + 12 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2007 · Synced Sep 23, 2026, 11:57 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Open-Label Single Ascending Dose of Adeno-associated Virus Serotype 8 Factor IX Gene Therapy in Adults With Hemophilia B

NCT01687608
View directory record Official record
Conditions
Hemophilia B
Interventions
AskBio009
Biological
Lead sponsor
Baxalta now part of Shire
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2030
U.S. locations
15
States / cities
Los Angeles, California • Sacramento, California • San Diego, California + 11 more
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 23, 2026, 11:57 PM EDT
Terminated Phase 3 Interventional

Open-Label, Randomised, Active Controlled, Multi-Centre Phase 3 Study Safety and Efficacy of Danaparoid vs Argatroban

NCT03809481
View directory record Official record
Conditions
Heparin-induced Thrombocytopenia
Interventions
Danaparoid Sodium, Argatroban
Drug
Lead sponsor
Aspen Global Incorporated
Industry
Eligibility
2 Weeks to 100 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
5
States / cities
Gainesville, Florida • Minneapolis, Minnesota • Durham, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 7, 2022 · Synced Sep 23, 2026, 11:57 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

PCC vs. FFP for Post Cardiopulmonary Bypass Coagulopathy and Bleeding

NCT02557672
View directory record Official record
Conditions
Bleeding, Blood Loss, Surgical, Cardiovascular Surgical Procedures, Prothrombin Complex Concentrates, Fresh Frozen Plasma
Interventions
Prothrombin complex concentrate (Human), Fresh frozen plasma (FFP)
Drug · Biological
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 6, 2022 · Synced Sep 23, 2026, 11:57 PM EDT
Recruiting No phase listed Observational

Treatment of Hemophilia A Patients With FVIII Inhibitors

NCT04023019
View directory record Official record
Conditions
Hemophilia A
Interventions
Nuwiq, Octanate, Wilate, Emicizumab, Recombinant factor VIIa (rFVIIa), Activated prothrombin complex concentrate (aPCC)
Biological
Lead sponsor
Emory University
Other
Eligibility
Male only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Sep 23, 2026, 11:57 PM EDT
Terminated Phase 3 Interventional

Study of Coagulation Factor VIIa Marzeptacog Alfa (Activated) in Subjects With Hemophilia A or B

NCT04489537
View directory record Official record
Conditions
Hemophilia A With Inhibitor, Hemophilia B With Inhibitor
Interventions
MarzAA
Biological
Lead sponsor
Catalyst Biosciences
Industry
Eligibility
12 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
2
States / cities
Phoenix, Arizona • Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Dec 16, 2021 · Synced Sep 23, 2026, 11:57 PM EDT