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A CLINICAL STUDY TO EVALUATE THE EFFECTS OF NXT007 COMPARED TO FACTOR VIII PROPHYLAXIS IN PEOPLE WITH HEMOPHILIA A

A MULTICENTER, RANDOMIZED, OPEN-LABEL, PHASE III CLINICAL TRIAL TO EVALUATE THE EFFICACY, SAFETY, PHARMACOKINETICS AND PHARMACODYNAMICS OF NXT007 PROPHYLAXIS VERSUS FACTOR VIII PROPHYLAXIS IN PEOPLE WITH HEMOPHILIA A WITHOUT INHIBITORS

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2051250253
Enrollment
126
Registered
2026-03-16
Start date
2026-04-01
Completion date
Unknown
Last updated
2026-05-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hemophilia-A

Interventions

NXT007:Subcutaneous injection, Protocol-specified dose Human Coagulation Factor VIII:Package insert prescribed dosage and administration

Sponsors

Daniel Hart
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Diagnosis of severe (FVIII:C = 1 IU/dL and >= 5 IU/dL) congenital HA without inhibitors against FVIII No documented inhibitor (i.e., = 6 hours, or FVIII recovery > 66% in the last 3 years prior to screening Documented historical negative test for FVIII inhibitor (i.e., < 0.6 BU/mL) within 12 months prior to enrollment Documentation of the details of prophylactic and episodic FVIII treatment and of the number and type of bleeding episodes for at least the last 6 months prior to screening Agreement to adhere to the contraception requirements (for potential participants with childbearing potential)

Exclusion criteria

Exclusion criteria: Sensitivity to any of the study investigations, or components thereof, or drug or other allergy that, in the opinion of the investigator, contraindicates participation in the study Use of systemic immunomodulators (e.g., interferon or rituximab) at the time of enrollment or planned use during the study, except for anti-retroviral therapy to treat HIV Planned surgery (excluding minor procedures such as non-molar tooth extraction, incision and drainage) during the study History or presence of an abnormal ECG that is deemed clinically significant, (e.g., complete left bundle branch block, second- or third degree atrioventricular heart block) or ECG evidence or clinical history of prior myocardial infarction Refusal to accept plasma-derived and/or blood product transfusion support in an emergency scenario History of ventricular dysrhythmias or risk factors for ventricular dysrhythmias such as structural heart disease (e.g., severe left ventricular systolic dysfunction, left ventricular hypertrophy), coronary heart disease (symptomatic or with ischemia demonstrated by diagnostic testing)

Design outcomes

Primary

MeasureTime frame
Efficacy Annualized Bleed Rate (ABR) for Treated Bleeds Over the Main 6month Study Treatment Period

Secondary

MeasureTime frame
Efficacy,Safety,Phamacokinetics,Phamacodynamics,other ABR for All Bleeds Over the Main 6month Study Treatment Period ABR for Treated Spontaneous Bleeds Over the Main 6month Study Treatment Period ABR for Treated Joint Bleeds Over the Main 6month Study Treatment Period ABR for Treated Target Joint Bleeds Over the Main 6month Study Treatment Period Adjusted Mean Treatment Burden Domain Score in Comprehensive Assessment Tool of Challenges in Hemophilia (CATCH) Questionnaire - Adult Version at Month 7 Mean Treatment Burden Domain Score in CATCH Questionnaire - Adolescent Version at Month 7 Change From Baseline in Preoccupation Domain Score of the CATCH Questionnaire (Adult and Adolescent Versions) Change From Baseline in Social Activity Impact Domain Score of the CATCH Questionnaire (Adult and Adolescent Versions) Change From Baseline in Recreational Activity Impact Domain Score of the CATCH Questionnaire (Adult and Adolescent Versions) Physical Impact Domain Score of the Treatment Administration Satisfaction Questionnaire (TASQ) at Specified Timepoints Incidence and Severity of Adverse Events, With Severity Determined According To National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0 (NCI CTCAE V5.0) Grading Scale Incidence and Severity of Thromboembolic Events and Thrombotic Microangiopathy Incidence and Severity of Injection-Site Reactions Incidence of Adverse Events Leading to Discontinuation of Assigned Study Treatment Incidence of Severe Hypersensitivity, Anaphylaxis, or Anaphylactoid Reactions Plasma Concentration of NXT007 Percentage of Participants With Anti-Drug Antibodies (ADAs) Against NXT007 at Baseline and During the Study Percentage of Participants With Neutralizing ADAs Against NXT007

Contacts

Public ContactClinical trials information

Chugai Pharmaceutical Co., Ltd.

clinical-trials@chugai-pharm.co.jp+81-120189706

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: May 30, 2026