The purpose of this study is to evaluate the efficacy, safety, pharmacokinetics and pharmacodynamics of NXT007 prophylaxis compared with Factor VIII (FVIII) prophylaxis in participants with severe or moderate congenital hemophilia A without inhibitors. The study will include people aged ≥12 years old with severe or moderate congenital hemophilia A without inhibitors on previous FVIII prophylaxis treatment.
Diagnosis of severe (FVIII:C <1 IU/dL [International Unit per decilitre]) or moderate (FVIII:C between ≥1 IU/dL and ≤5 IU/dL) congenital hemophilia A without inhibitors against FVIII
No documented inhibitor (i.e., <0.6 BU/mL [Bethesda unit per millilitre]), FVIII half-life ≥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
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
Hoffmann-La Roche
Lead sponsor
Chugai Pharmaceutical
Collaborator