E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Haemophilia A
Haemophilia A with inhibitors |
|
E.1.1.1 | Medical condition in easily understood language |
Bleeding disorder, inherited deficiency in clotting factor VIII
Bleeding disorder, inherited deficiency in clotting factor VIII with antibodies to clotting factor replacement therapy |
|
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 |
|
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 |
|
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 investigate the safety of Mim8 prophylaxis in children with haemophilia A with or without FVIII inhibitors. |
|
E.2.2 | Secondary objectives of the trial |
Investigate the efficacy of Mim8 prophylaxis in children with haemophilia A with or without FVIII inhibitors. Evaluate the consumption of coagulation factor replacement product per bleed treatment (number of injections) with Mim8 prophylaxis in children with haemophilia A with or without FVIII inhibitors. Evaluate the development of anti-Mim8 antibodies with Mim8 prophylaxis in children with haemophilia A with or without FVIII inhibitors. Investigate exposure of Mim8 after once-weekly and once-monthly subcutaneous dosing in children with haemophilia A with or without FVIII inhibitors. Evaluate treatment burden with Mim8 prophylaxis in children with haemophilia A with or without FVIII inhibitors, as reported by their caregivers. Investigate treatment preference among caregivers of previously treated children with haemophilia A with or without FVIII inhibitors. Evaluate aspects of physical functioning with Mim8 prophylaxis in children with haemophilia A with or without FVIII inhibitors. |
|
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 and female participants with the diagnosis of congenital haemophilia A of any severity based on medical records. 3. Aged 1−11 years (both inclusive) at the time of signing informed consent. 4. For previously treated participants: a. Participant has been prescribed treatment with FVIII concentrate or bypassing agent in the last 26 weeks prior to screening. b. Participants with endogenous FVIII activity ≥1%, based on medical records, must have at least 1 treated bleed during the previous 26 weeks before screening for which factor VIII concentrate or bypassing agent has been prescribed (No requirements for participants with FVIII activity <1%). 5. For previously untreated participants: a. Diagnosis of severe haemophilia A (endogenous FVIII activity < 1%) based on medical records. 6. Child and parent/caregiver willingness and ability to comply with scheduled visits and study procedures, including the completion of diary and patient-reported outcomes questionnaires. |
|
E.4 | Principal exclusion criteria |
1. Known or suspected hypersensitivity to trial product or related products. 2. Previous participation in this study. Participation is defined as signed informed consent. 3. Participation (i.e., signed informed consent) in any interventional clinical study with receipt of last dose within 6 months (or 5 half-lives of the investigational medicinal product, whichever is shorter) before planned randomisation. 4. 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. 5. Known congenital or acquired coagulation disorders other than haemophilia A. 6. Other conditions (e.g. autoimmune disease) or laboratory abnormality that may increase risk of bleeding or thrombosis, as evaluated by the investigator. 7. Any disorder, except for conditions associated with haemophilia A, that in the investigator’s opinion might jeopardise the participant’s safety or compliance with the protocol. 8. Mental incapacity, unwillingness to cooperate or a language barrier precluding adequate understanding and cooperation. 9. Lack of adequate parental/caregiver support to enter accurately and timely information regarding treatment and bleeding episodes into an (electronic) diary. 10. Previous or current treatment for thromboembolic disease (with the exception of previous catheter-associated thrombosis for which anti-thrombotic treatment is not currently ongoing) or signs of thromboembolic disease. 11. Major surgery planned to take place after screening. For definition of major surgery, see Table 6-7. 12. Immune tolerance induction planned to take place after treatment initiation. 13. Hepatic dysfunction defined as aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) >3 times the upper limit of normal combined with total bilirubin >1.5 times the upper limit of normal measured at screening. 14. Serum creatinine above 1.5 x upper limit of normal (ULN), measured at screening. 15. Pregnancy (female participants). |
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E.5 End points |
E.5.1 | Primary end point(s) |
1. Number of treatment emergent adverse events |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
1. From treatment initiation to follow up visit (week 0 to week 72) |
|
E.5.2 | Secondary end point(s) |
1. Number of treated bleeds 2. Number of treated spontaneous bleeds 3. Number of treated traumatic bleeds 4. Number of treated joint bleeds 5. Number of treated target joint bleeds 6. Number of injection site reactions 7. Consumption of factor product per bleed treatment 8. Occurrence of anti-Mim8 antibodies 9. Mim8 plasma concentration 10. Change in physical function domain of Paediatric Quality of Life inventory (PEDS-QL) Generic Core Scales 11. Treatment preference for Mim8 versus previous treatment using Caregiver Haemophilia Patient Preference Questionnaire (Caregiver H-PPQ) 12. Change in participants’ treatment burden using the Haemophilia treatment experience measure (Hemo TEM) |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
1-6 . From treatment initiation to end of treatment (week 0 to week 52) 7. From run-in initiation to end of treatment (week -26 to week 52) 8-10. From treatment initiation to end of treatment (week 0 to week 52) 11. Once during treatment (week 26) 12. From treatment initiation to end of treatment (week 0 to week 52) |
|
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 | Yes |
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 | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
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 | No |
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 | No |
E.8.3 |
The trial involves single site in the Member State concerned
| Information not present in EudraCT |
E.8.4 | The trial involves multiple sites in the Member State concerned | Information not present in EudraCT |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 18 |
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 |
South Africa |
Taiwan |
United States |
European Union |
Switzerland |
Russian Federation |
United Kingdom |
|
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
|
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 11 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 11 |