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ClinicalTrials.gov public records Last synced Oct 7, 2026, 10:45 AM EDT

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Showing 25–48 of 117 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Hemophilia A and B Clear all
Completed No phase listed Observational

Socialization of Adult Men With Congenital Hemophilia A or B

NCT01510418
View directory record Official record
Conditions
Hemophilia A, Hemophilia B
Interventions
Not listed
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
21 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 3, 2016 · Synced Oct 7, 2026, 10:45 AM EDT
Completed Phase 2Phase 3 Interventional

Fitusiran Prophylaxis in Male Pediatric Subjects Aged 1 to Less Than 12 Years With Hemophilia A or B

NCT03974113
View directory record Official record
Conditions
Hemophilia
Interventions
Fitusiran
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
1 Year to 11 Years · Male only
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
4
States / cities
Los Angeles, California • Hackensack, New Jersey • Cleveland, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 7, 2026, 10:45 AM EDT
Completed Phase 2Phase 3 Interventional Results available

A Safety and Efficacy Study of a Recombinant Fusion Protein Linking Coagulation Factor IX With Albumin (rIX-FP) in Patients With Hemophilia B

NCT01496274
View directory record Official record
Conditions
Hemophilia B
Interventions
rIX-FP
Biological
Lead sponsor
CSL Behring
Industry
Eligibility
12 Years to 65 Years · Male only
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
4
States / cities
Chicago, Illinois • Indianapolis, Indiana • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated May 9, 2016 · Synced Oct 7, 2026, 10:45 AM EDT
Completed No phase listed Observational

Observational Patient Diary Study of Treatment Doses for Patients With Haemophilia With Inhibitors to Factors VIII and IX

NCT00710619
View directory record Official record
Conditions
Congenital Bleeding Disorder, Haemophilia A With Inhibitors, Haemophilia B With Inhibitors
Interventions
activated recombinant human factor VII, Feiba VH
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
Male only
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Plainsboro, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 17, 2016 · Synced Oct 7, 2026, 10:45 AM 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 12, 2019 · Synced Oct 7, 2026, 10:45 AM 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 4, 2007 · Synced Oct 7, 2026, 10:45 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

A Factor IX Gene Therapy Study (FIX-GT)

NCT03369444
View directory record Official record
Conditions
Hemophilia B
Interventions
FLT180a
Biological
Lead sponsor
University College, London
Other
Eligibility
18 Years and older · Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 2, 2022 · Synced Oct 7, 2026, 10:45 AM EDT
Completed No phase listed Observational

Long-Term Safety, Tolerability, and Efficacy of DTX101 (AAVrh10FIX) in Adults With Moderate/Severe to Severe Hemophilia B

NCT02971969
View directory record Official record
Conditions
Hemophilia B
Interventions
Not listed
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
18 Years and older · Male only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
3
States / cities
Little Rock, Arkansas • Gainesville, Florida • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 6, 2022 · Synced Oct 7, 2026, 10:45 AM EDT
Completed Phase 4 Interventional

Trial of NovoSeven® in Haemophilia - Joint Bleeds

NCT00108797
View directory record Official record
Conditions
Congenital Bleeding Disorder, Haemophilia A With Inhibitors, Haemophilia B With Inhibitors
Interventions
eptacog alfa (activated), Feiba VH
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
Up to 20 Years · Male only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2006
U.S. locations
20
States / cities
Little Rock, Arkansas • Berkeley, California • Los Angeles, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 7, 2026, 10:45 AM EDT
Recruiting Phase 3 Interventional

SAFE Study: Safety of aPCC Following Emicizumab Prophylaxis

NCT04563520
View directory record Official record
Conditions
Hemophilia A
Interventions
Emicizumab, FEIBA, rFVIIa
Drug
Lead sponsor
Emory University
Other
Eligibility
6 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Oct 7, 2026, 10:45 AM EDT
Completed Phase 3 Interventional Results available

Study Comparing On-Demand Treatment With Two Prophylaxis Regimens Of BeneFIX In Patients With Severe Hemophilia B

NCT00364182
View directory record Official record
Conditions
Hemophilia B
Interventions
Recombinant Coagulation Factor IX (BeneFIX)
Drug
Lead sponsor
Pfizer
Industry
Eligibility
6 Years to 65 Years · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
5
States / cities
Phoenix, Arizona • Chicago, Illinois • New Brunswick, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 4, 2011 · Synced Oct 7, 2026, 10:45 AM EDT
Completed Phase 2 Interventional

Study of Recombinant Porcine Factor VIII (FVIII) in Hemophilia and Inhibitors to FVIII

NCT00245245
View directory record Official record
Conditions
Hemophilia A
Interventions
recombinant porcine coagulation factor VIII (OBI-1)
Drug
Lead sponsor
Octagen Corporation
Industry
Eligibility
12 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Blue Bell, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 4, 2007 · Synced Oct 7, 2026, 10:45 AM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate Prospective Efficacy and Safety Data of Current FIX Prophylaxis Replacement Therapy in Adult Hemophilia B Subjects (FIX:C≤2%) or Current FVIII Prophylaxis Replacement Therapy in Adult Hemophilia A Subjects (FVIII:C≤1%)

NCT03587116
View directory record Official record
Conditions
Hemophilia B, Hemophilia A
Interventions
Standard of Care FIX Replacement therapy, Standard of Care FVIII Replacement therapy
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 64 Years · Male only
Enrollment
212 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
13
States / cities
Palo Alto, California • San Francisco, California • Stanford, California + 7 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2025 · Synced Oct 7, 2026, 10:45 AM EDT
Completed No phase listed Observational

ATHN 8: Previously Untreated Patients (PUPs) Matter Study

NCT03818529
View directory record Official record
Conditions
Hemophilia, Hemophilia A, Hemophilia B, Hemophilia A With Inhibitor, Hemophilia B With Inhibitor, Haemophilia B Without Inhibitor, Haemophilia A Without Inhibitor, Haemophilia
Interventions
Not listed
Lead sponsor
American Thrombosis and Hemostasis Network
Network
Eligibility
0 Years to 13 Years
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
27
States / cities
Phoenix, Arizona • Madera, California • San Diego, California + 24 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2023 · Synced Oct 7, 2026, 10:45 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase 1 Study of an Investigational Drug, ALN-AT3SC, in Healthy Volunteers and Hemophilia A or B Patients

NCT02035605
View directory record Official record
Conditions
Hemophilia A, Hemophilia B
Interventions
ALN-AT3SC, Sterile Normal Saline (0.9% NaCl)
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 19, 2020 · Synced Oct 7, 2026, 10:45 AM 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 23, 2016 · Synced Oct 7, 2026, 10:45 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of NNC 0078-0000-0007 in Patients With Congenital Haemophilia and Inhibitors

NCT01392547
View directory record Official record
Conditions
Congenital Bleeding Disorder, Haemophilia A With Inhibitors, Haemophilia B With Inhibitors
Interventions
vatreptacog alfa (activated), eptacog alfa (activated)
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
12 Years and older · Male only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
14
States / cities
Tucson, Arizona • Los Angeles, California • Orange, California + 10 more
Source: ClinicalTrials.gov public record
Updated May 15, 2017 · Synced Oct 7, 2026, 10:45 AM EDT
Recruiting No phase listed Observational

ATHNdataset Registry

NCT06820515
View directory record Official record
Conditions
Hemophilia, Thrombosis, Hemophilia A, Hemophilia B, Sickle Cell Disease, Glanzmann Thrombasthenia, Bleeding Disorder, Blood Disorder, Von Willebrand Diseases
Interventions
Not listed
Lead sponsor
American Thrombosis and Hemostasis Network
Network
Eligibility
Not listed
Enrollment
200,000 participants
Timeline
2024 – 2055
U.S. locations
1
States / cities
Hickory, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Oct 7, 2026, 10:45 AM 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 19, 2020 · Synced Oct 7, 2026, 10:45 AM EDT
Completed Phase 1 Interventional

Safety of 40K Pegylated Recombinant Factor IX in Non-Bleeding Patients With Haemophilia B

NCT00956345
View directory record Official record
Conditions
Congenital Bleeding Disorder, Haemophilia B
Interventions
nonacog beta pegol
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
3
States / cities
Cincinnati, Ohio • Portland, Oregon • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 20, 2017 · Synced Oct 7, 2026, 10:45 AM EDT
Withdrawn Phase 3 Interventional

Study of a Gene Therapy Treatment for Hemophilia A

NCT06297486
View directory record Official record
Conditions
Hemophilia A
Interventions
SPK-8011
Genetic
Lead sponsor
Spark Therapeutics, Inc.
Industry
Eligibility
18 Years and older · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2035
U.S. locations
27
States / cities
Phoenix, Arizona • Loma Linda, California • Los Angeles, California + 23 more
Source: ClinicalTrials.gov public record
Updated Dec 13, 2024 · Synced Oct 7, 2026, 10:45 AM EDT
Terminated Phase 3 Interventional Results available

Study of Modified Recombinant Factor VIII (OBI-1) in Subjects With Congenital Hemophilia A

NCT01434511
View directory record Official record
Conditions
Hemophilia A
Interventions
OBI-1
Biological
Lead sponsor
Baxalta now part of Shire
Industry
Eligibility
6 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated May 14, 2021 · Synced Oct 7, 2026, 10:45 AM EDT
Recruiting Phase 3 Interventional

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

NCT05145127
View directory record Official record
Conditions
Hemophilia A, Hemophilia B
Interventions
PF-06741086
Drug
Lead sponsor
Pfizer
Industry
Eligibility
1 Year to 74 Years · Male only
Enrollment
245 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2030
U.S. locations
4
States / cities
Iowa City, Iowa • New Hyde Park, New York • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Oct 7, 2026, 10:45 AM EDT
Completed Phase 2 Interventional Results available

Haemophilia Patients With Inhibitors Being Treated for Acute Joint Bleeds

NCT00486278
View directory record Official record
Conditions
Congenital Bleeding Disorder, Haemophilia A, Haemophilia B
Interventions
eptacog alfa (activated), vatreptacog alfa (activated)
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
12 Years and older · Male only
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
12
States / cities
Los Angeles, California • Augusta, Georgia • Chicago, Illinois + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2017 · Synced Oct 7, 2026, 10:45 AM EDT