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Study identifier: NCT04489537 Synced from ClinicalTrials.gov · August 10, 2026
● Study status: Terminated

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

Condition: Hemophilia A With Inhibitor · Hemophilia B With Inhibitor  ·  Sponsor: Catalyst Biosciences

PhasePhase 3
Planned participants18
Who can joinAll sexes, 12 Years to no upper limit
Healthy volunteersNoCheck eligibility criteria ↓
Where43 locations · 16 countries
For sponsors, CROs & site teams
Professional view of this study — listed sites, countries and recruiting context from the public registry. Everything below is written for patients and caregivers.Open the site landscape →

About this study

The purpose of the trial is to evaluate the safety and efficacy of MarzAA for on-demand treatment and control of bleeding episodes in hemophilia A or B patients with inhibitors compared with their standard of care (SOC).

This description comes directly from the study's public registry record.

Talk to the study team

No contact information is available for this study as per the public registry record.

Always discuss trial participation with your own doctor first.

Full eligibility criteria (exactly as the study team wrote them)

Inclusion Criteria: * Diagnosis of congenital hemophilia A or B with inhibitors * Male or Female, age 12 or older * History of frequent bleeding episodes * Affirmation of informed consent with signature confirmation and assent for children between ages 12 to 17 before any study related activities Exclusion Criteria: * Previous participation in a clinical trial evaluating a modified rFVIIa agent * Received an investigational drug within 30 days or 5 half-lives or absence of clinical effect * Known hypersensitivity to trial or related product * Known positive antibody to FVII or FVIIa detected by central lab at screening * Have a coagulation disorder other than hemophilia A or B * Be immunosuppressed * Significant contraindication to participate

Reproduced word-for-word from the public registry record — the study team can answer questions about it.

Locations (43)

Phoenix Children's HospitalPhoenix, Arizona, United States
Lombardi Comprehensive Cancer CenterWashington D.C., District of Columbia, United States
Hematology Center after Prof. R. YeolyanYerevan, Armenia
JSC "K.Eristavi National Center of Experimental and Clinical Surgery"Tbilisi, Georgia
Magyar Honvédség Egészségügyi Központ, Országos Haemophilia KözpontBudapest, Hungary
Nirmal HospitalGujrāt, India
K.L.E.S Dr. Prabhakar Kore Hospital and Medical Research CentreKārnād, India
Sanjay Gandhi Postgraduate Institute of Medical SciencesLucknow, India
K.J Somaiya Hospital and Research CentreMumbai, India
MCGM - Comprehensive Thalassemia Care, Pediatric Hematology-Oncology & BMT CentreMumbai, India
Sahyadri Specialty HospitalMumbai, India
Grant Medical Foundation, Ruby Hall ClinicPune, India

+ 31 more locations — full list on the registry record.

More studies in these areas

This study lists sites in the areas below. Each link shows other recruiting studies near that city, from the public registry record.

PhoenixWashington D.C.YerevanTbilisi

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