A Research Study Investigating Mim8 in Adults and Adolescents With Haemophilia A With or Without Inhibitors
Study Details
- Hemophilia A
- Hemophilia A With Inhibitor(s)
- Drug: NNC0365-3769 (Mim8)
- Inclusion Criteria:
- 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 with diagnosis of congenital haemophilia A of any severity based on medical records.
- Participant has been prescribed treatment with factor VIII concentrates or bypassing agent in the last 26 weeks prior to screening.
- Age above or equal to 12 years at the time of signing informed consent.
- Body weight greater than or equal to 30 kg.
- Applicable to participants treated with on-demand/no prophylaxis prior to enrolment: ≥5 bleeds in the last 26 weeks prior to screening visit, for which factor VIII concentrates or bypassing agent has been prescribed.
- Applicable to participants with FVIII activity ≥1% who are on prophylactic treatment: ≥1 bleed in the last 26 weeks prior to screening visit, for which factor VIII concentrates or bypassing agent has been prescribed.
- Willingness and ability to comply with scheduled visits and study procedures, including the completion of diary and patient-reported outcomes questionnaires.
- Exclusion Criteria:
- Previous participation in this study. Participation is defined as signed informed consent.
- Participation (i.e., signed informed consent) in any interventional clinical study with receipt of the last dose within 6 months (or 5 half-lives of the investigational medicinal product, whichever is shorter) before planned randomisation.
- Exposure to non-factor haemostatic products for bleeding prophylaxis within 6 months (or 5 half-lives of the medicinal product, whichever is shorter) before planned randomisation, for participants not included in the run-in.
- Female who is pregnant, breast-feeding or intends to become pregnant or is of child-bearing potential and not using a highly effective contraceptive method. Breast feeding is allowed only during the run-in period.
- Any disorder, except for conditions associated with haemophilia A, which in the investigator's opinion might jeopardise participant's safety or compliance with the protocol.
- Known or suspected hypersensitivity to trial product(s), any constituents of the product or to related products.
- Receipt of gene therapy at any given time point.
- Ongoing or planned immune tolerance induction (ITI) therapy.
- Major surgery planned to take place after screening.
- Known congenital or acquired coagulation disorders other than haemophilia A.
- Hepatic dysfunction defined as aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) above 3 times the upper limit combined with total bilirubin above1.5 times the upper limit measured at screening.
- Renal impairment defined as estimated Glomerular Filtration Rate (eGFR) below or equal to 30 ml/min/1.73 m\^2 for serum creatinine measured at screening.
- Previous or current thromboembolic disease or events (with the exception of previous catheter-associated thrombosis for which anti-thrombotic treatment is not currently ongoing) or risk of thromboembolic disease, as evaluated by investigator.
- Mental incapacity, unwillingness to cooperate, or a language barrier precluding adequate understanding and cooperation.
- Other conditions (e.g., autoimmune disease) or laboratory abnormality that may increase risk of bleeding or thrombosis as evaluated by the investigator.
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.