A Research Study Investigating Denecimig (Mim8) in Adults With Acquired Haemophilia A
Study Details
- Hemophilia A
- Drug: Denecimig
- Informed consent obtained before any study-related activities. Study-related activities are any procedures that are carried out as part of the study, including activities to determine suitability for the study.
- Male or female participants (sex assigned at birth, inclusive of all gender identities) newly diagnosed with acquired haemophilia A (AHA) prior to signing the informed consent form, with AHA diagnosis (FVIII activity lesser than (\<) 50 percentage (%) and FVIII inhibitors greater than (\>) 0.6 Bethesda units \[BU\]) confirmed at screening.
- Treatment-requiring bleed(s) due to AHA from diagnosis and until screening.
- The participant is capable of following study procedures and able to seek medical attention when needed.
- Female who is pregnant, breast-feeding or intends to become pregnant or is of childbearing potential and not using an adequate and highly effective contraceptive method.
- Previous or current thromboembolic disease or eventsa (with the exception of previous catheter associated thrombosis for which anti-thrombotic treatment is not currently ongoing) or risk of thromboembolic disease.
- Life expectancy \<3 months at the time of screening, as evaluated by the investigator.
- Therapy with immunosuppressive or immune modulating drugs for treatment of AHA (other than less than or equal to (≤) 2 days of prednisolone (or equivalent) for AHA at a dose ≤100 mg per day) prior to screening.
- Immunosuppressive therapy (IST) initiated prior to AHA diagnosis for other medical conditions (e.g., other autoimmune disorders) is permitted, provided it was initiated greater than or equal to (≥) 6 months prior to screening, has been maintained at a stable dose and regimen since initiation, and is expected to remain at a stable dose and regimen at least during the main treatment period (Weeks 0-12).
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.