Clinical Trials Logo

Clinical Trial Summary

This is a multicenter, multinational, open-label, one-way cross-over, Phase 3, single-arm study for treatment of hemophilia. The purpose of this study is to measure the frequency of treated bleeding episodes with fitusiran in male adult and adolescent (≥12 years old) participants with hemophilia A or B, with or without inhibitory antibodies to factor VIII or IX who have switched from their prior standard of care treatment. The total study duration will be up to approximately 50 months (200 weeks, 1 study month is equivalent to 4 weeks) and will include: - A screening period up to approximately 60 days, - A standard of care (SOC) period of approximately 6 study months (24 weeks), - A fitusiran treatment period of approximately 36 study months (144 weeks), - An antithrombin (AT) follow-up period of approximately 6 study months (24 weeks) but may be shorter or longer depending on individual participants AT recovery. The frequency for telephone visits will be approximately every 2 weeks. For site visits the frequency will be approximately every 8 weeks during the SOC period and approximately every 4 weeks during the fitusiran treatment period. If applicable and if allowed by local regulation, home and/or remote visits may be conducted during the study


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT05662319
Study type Interventional
Source Sanofi
Contact Trial Transparency email recommended (Toll free number for US &
Phone 800-633-1610
Email contact-us@sanofi.com
Status Recruiting
Phase Phase 3
Start date February 1, 2023
Completion date March 1, 2028

See also
  Status Clinical Trial Phase
Recruiting NCT05617209 - In Vitro Correction of Thrombin Generation by Concizumab (Anti-TFPI) for Severe Hemophilia Patients
Completed NCT05039008 - Restricting Blood Flow in Improving Muscle Strength in Patients With Hemophilic Arthropathy N/A
Recruiting NCT04398628 - ATHN Transcends: A Natural History Study of Non-Neoplastic Hematologic Disorders
Completed NCT02546622 - ATHN 2: Factor Switching Study
Terminated NCT02586012 - Weight-based Dosing in Hemophilia A Phase 2
Unknown status NCT02165592 - Assessment of Proprioceptive and Functional Characteristics in Patients With Hemophilia N/A
Unknown status NCT02433782 - Myofascial Therapy in Patients With Hemophilic Arthropathy N/A
Completed NCT02165462 - Bilateral Deficit Phenomenon in Patients With Haemophilic Arthropathy N/A
Completed NCT01232634 - Validation of Ultrasound as a Diagnostic Tool for Assessment of Hemophilic Arthropathy of Knees and Ankles Phase 2
Completed NCT05104164 - Self-myofascial Release in Hemophilic Ankle Arthropathy N/A
Terminated NCT01191372 - First-in-Human and Proof-of-Mechanism Study of ARC19499 Administered to Hemophilia Patients Phase 1
Completed NCT05173129 - Posture Analysis for Patients With Haemophilia N/A
Completed NCT03818529 - ATHN 8: Previously Untreated Patients (PUPs) Matter Study
Withdrawn NCT03996486 - Study to Test the Safety of an Investigational Drug Given Repeatedly to Adult Men With Severe Hemophilia Phase 1
Completed NCT03842605 - Efficacy of Strength Training in Improving Elbow Range of Motion and Function in Adults With Hemophilia N/A
Completed NCT01708564 - A Phase I Safety, Pharmacokinetics and Pharmacodynamics Study of Recombinant Factor VIIa in Adult Patients With Hemophilia A or B Phase 1
Completed NCT05549843 - Manual Therapy in the Treatment of Hemophilic Arthropathy of the Ankle N/A
Recruiting NCT06010953 - SS109 and NovoSeven ® PK / PD Profile, and Preliminary Efficacy and Safety of SS109 on Demand Treatment Phase 1/Phase 2
Completed NCT05027230 - A Safety and Efficacy Study of STSP-0601 in Adult Patients With Hemophilia A or B With Inhibitor Phase 1/Phase 2
Not yet recruiting NCT06014320 - Alterations in Coagulation Factor Levels in Patients With End Stage Liver Disease