E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Haemophilia A Haemophilia A with inhibitors |
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E.1.1.1 | Medical condition in easily understood language |
Haemophilia A Haemophilia A with inhibitors |
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E.1.1.2 | Therapeutic area | Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10018938 |
E.1.2 | Term | Haemophilia A (Factor VIII) |
E.1.2 | System Organ Class | 100000004850 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10053751 |
E.1.2 | Term | Hemophilia A with anti factor VIII |
E.1.2 | System Organ Class | 100000004850 |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To confirm the haemostatic effect of Mim8 as bleeding prophylaxis for adults and adolescents with haemophilia A with or without inhibitors. This will be done by: • Demonstrating superiority in number of bleeding episodes when treated with Mim8 once-weekly versus no prophylaxis for participants on no prophylaxis treatment prior to enrolment (Comparing Arm 1 and Arm 2 main treatment period) • Demonstrating non-inferiority in number of bleeding episodes when treated with either Mim8 once-weekly or once-monthly versus treatment with coagulation factor prophylaxis during run-in for participants on prophylaxis treatment prior to enrolment (Comparing Arm 3 and Arm 4 run-in with main treatment period). |
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E.2.2 | Secondary objectives of the trial |
1. To investigate safety of Mim8 prophylaxis in adults and adolescents with haemophilia A with or without FVIII inhibitors. 2. To evaluate the consumption of factor product per bleed treatment (number of injections) after Mim8 prophylaxis in adults and adolescents with haemophilia A with or without inhibitors. 3. To evaluate the development of anti-Mim8 antibodies after Mim8 prophylaxis in adults and adolescents with haemophilia A with or without inhibitors. 4. To evaluate treatment burden after Mim8 prophylaxis in adults and adolescents with haemophilia A with or without inhibitors. 5. To evaluate aspects of patient’s physical functioning after Mim8 prophylaxis in adults and adolescents with haemophilia A with or without inhibitors. 6. To evaluate joint pain intensity after Mim8 prophylaxis in adults and adolescents with haemophilia A with or without inhibitors. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. 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 2. Male or female with diagnosis of congenital haemophilia A of any severity based on medical records 3. Participants has been prescribed treatment with factor VIII concentrates or bypassing agent in the last 26 weeks prior to screening 4. Age above or equal to 12 years at the time of signing informed consent. 5. Body weight above or equal to 30 kg 6. Applicable to participants treated with on-demand/no prophylaxis prior to enrolment: more than or equal to 5 bleeds in the last 26 weeks prior to screening visit, for which factor VIII concentrates or bypassing agent has been prescribed 7. Applicable to participants with FVIII activity above or equal to 1% who are on prophylactic treatment: more than or equal to 1 bleed in the last 26 weeks prior to screening visit, for which factor VIII concentrates or bypassing agent has been prescribed 8. Willingness and ability to comply with scheduled visits and study procedures, including the completion of diary and patient-reported outcomes questionnaires |
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E.4 | Principal exclusion criteria |
1. Previous participation in this study. Participation is defined as signed informed consent 2. Participation in any clinical study of an approved or non-approved investigational medicinal product, within 30 days (or 5 half-lives of the investigational medicinal product, whichever is greater) before screening 3. Exposure to non-factor haemostatic products for bleeding prophylaxis within 6 months (or 5 half-lives of the medicinal product, whichever is shorter) prior to planned first dose, for participants not included in the run-in. 4. 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 5. 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 6. Known or suspected hypersensitivity to study product(s), any constituents of the product or to related products 7. Receipt of gene therapy at any given time point 8. Ongoing or planned ITI therapy 9. Major surgery planned at the time of screening. 10. Known congenital or acquired coagulation disorders other than haemophilia A 11. Hepatic dysfunction defined as AST and/or ALT more than 3 times the upper limit combined with total bilirubin more than 1.5 times the upper limit measured at screening 12. Renal impairment defined as estimated Glomerular Filtration Rate (eGFR) less than or equal to 30 ml/min/1.73 m^2 for serum creatinine measured at screening 13. 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 14. Mental incapacity, unwillingness to cooperate, or a language barrier precluding adequate understanding and cooperation 15. Other conditions (e.g. autoimmune disease) or laboratory abnormality that may increase risk of bleeding or thrombosis as evaluated by the investigator |
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E.5 End points |
E.5.1 | Primary end point(s) |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
- No prophylaxis treatment (Arms 1 and 2): From randomisation (week 0) to end of main (week 26) - Prophylaxis treatment (Arms 3 and 4): From initiation of run-in (26-52 weeks prior to week 0) to week 0 and from randomisation (week 0) to end of main (week 26) |
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E.5.2 | Secondary end point(s) |
1. Number of injection site reactions 2. Occurrence of antiMim8 antibodies 3. Number of treated spontaneous bleeds 4. Number of treated joint bleeds 5. Number of treated traumatic bleeds 6. Number of treated target joint bleeds 7. Consumption of factor product per bleed treatment (number of injections) 8. Change in physical function domain of paediatric quality of life inventory (PEDS-QL) 9. Change in participant’s treatment burden using the haemophilia treatment experience measure (Hemo-TEM) 10. Change in participant’s joint pain score using Joint Pain Rating Scale |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1. All participants receiving Mim8 (Arms 2, 3 and 4): From randomisation (week 0) to end of main (week 26) 2. All participants receiving Mim8 (Arms 2, 3 and 4): From randomisation (week 0) to end of extension (week 52) 3. – 7.: - No prophylaxis treatment (Arms 1 and 2): From randomisation (week 0) to end of main (week 26) - Prophylaxis treatment (Arms 3 and 4): From initiation of run-in (26-52 weeks prior to week 0) to week 0 and from randomisation (week 0) to end of main (week 26) 8. – 10.: All participants (Arms 1, 2, 3 and 4): From randomisation (week 0) to the end of the main part (week 26) |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
Intra-individual (within-patient) comparison |
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E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
Different treatment regimen of Mim8 |
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E.8.2.4 | Number of treatment arms in the trial | 4 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 53 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Canada |
China |
India |
Israel |
Japan |
Korea, Republic of |
Saudi Arabia |
South Africa |
Taiwan |
United States |
European Union |
Switzerland |
Russian Federation |
Serbia |
Turkey |
United Kingdom |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 2 |
E.8.9.1 | In the Member State concerned months | 3 |
E.8.9.1 | In the Member State concerned days | 4 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 3 |
E.8.9.2 | In all countries concerned by the trial days | 4 |