A Study Looking at How Different Doses of Study Medicine (Inno8) Works in the Body of Healthy Men
Study Details
- Hemophilia A
- Drug: NNC0442-0344 A
- Drug: Placebo
- Inclusion Criteria:
- Male
- Age 18-45 years (both inclusive) at the time of signing informed consent
- Body mass index between 18.5 and 29.9 Kilogram Per Square Meter (kg/m\^2) (both inclusive)
- Body weight between 60.0 and 100.0 Kilogram (kg) (both inclusive)
- Considered to be generally healthy based on the medical history, physical examination, and the results of vital signs, electrocardiogram and clinical laboratory tests performed during the screening visit, as judged by the investigator
- Exclusion Criteria:
- Factor VIII activity greater than or equal to (≥) 150% at screening
- Increased risk of thrombosis, e.g. known history of personal or first-degree relative(s) with unprovoked deep vein thrombosis
- Any clinical signs or established diagnosis of venous or arterial thromboembolic disease
- Any of the thrombophilia markers listed below:
- Protein C, protein S or antithrombin below the lower normal laboratory range
- Factor II activity, activated protein C resistance, lupus anticoagulant, anti-cardiolipin antibody (IgG and IgM) or anti-β2 glycoprotein I antibody (IgG and IgM) outside the normal laboratory range at screening
Protocol Summary
This study is looking at how safe it is to switch from emicizumab to Mim8, in people with haemophilia A. Mim8 is a new medicine that is used to prevent bleeding episodes in people with haemophilia A. Mim8 works by replacing the function of the missing clotting factor VIII (FVIII). Mim8 will be injected under the skin using a pen-injector either once every week, once every two weeks or once every month. The participants will be trained in using the pen injector. The participants can choose themselves, in collaboration with the study doctor how often they get Mim8 in this study. When the participant will get their first Mim8 injection depends on their current treatment with emicizumab. The participants will get their first Mim8 injection at Visit 2. Participants will have between 6 and 27 Mim8 injections. The total number of injections participants will have depends on their dosing frequency. The study will last for about 6-12 months. While taking part in this study, there are some restrictions about what medicine participant can use. The study doctor will tell the participants more about this. In case the participants experience bleeds, these can be treated with additional haemostatic medicine as agreed with the study doctor. Female participants cannot take part if they are pregnant, breast-feeding or plan to get pregnant during the study period.