E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Hemophilia A or Hemophilia B |
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E.1.1.1 | Medical condition in easily understood language |
Hemophilia is an inherited bleeding disorder in which the blood does not clot normally and can result in internal bleeding into the muscles and joints. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Blood and lymphatic diseases [C15] |
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 | 10060613 |
E.1.2 | Term | Hemophilia 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 | 10060614 |
E.1.2 | Term | Hemophilia B (Factor IX) |
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 characterize the long-term safety and tolerability of fitusiran. |
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E.2.2 | Secondary objectives of the trial |
To characterize the long-term efficacy of fitusiran as assessed by the frequency of: - Bleeding episodes, - Spontaneous bleeding episodes, - Target joint bleeding episodes. To characterize the effects of fitusiran on health-related quality of life measures in participants ≥17 years of age. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Participants are eligible to be included in the study only if all of the following criteria apply:
Age 01. Participant must be at least 12 years of age inclusive, at the time of signing the informed consent
Type of participant and disease characteristics 02. Participants with severe hemophilia A or B who have completed a Phase 3 fitusiran clinical trial
Sex 03. Male A) There are no contraceptive requirements for this study except where required by local regulations.
Informed Consent 04. Capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the ICF and in this protocol. In countries where legal age of majority is above 18 years, a specific ICF must also be signed by the participant’s legally authorized representative. |
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E.4 | Principal exclusion criteria |
Participants are excluded from the study if any of the following criteria apply:
Medical conditions 01. Completion of a surgical procedure within 14 days prior to screening, or currently receiving additional factor concentrate or BPA infusion for postoperative hemostasis
Prior/concomitant therapy 02. Current participation in ITI 03. Current use of factor concentrates or BPAs as regularly administered prophylaxis designed to prevent spontaneous bleeding episodes 04. Use of compounds other than factor concentrates or BPAs for hemophilia treatment
Prior/concurrent clinical study experience 05. Received an investigational drug or device, other than fitusiran, within 30 days of anticipated IMP administration or 5 half-lives of the IMP, whichever is longer 06. Current or prior participation in a gene therapy trial
Diagnostic assessments 07. ALT and/or AST >1.5× upper limit of normal reference range (ULN) for patients who are naïve to fitusiran at study start; ALT and/or AST >5× ULN for patients who were in the fitusiran arm in the parent study.
Other exclusions 08. Individuals accommodated in an institution because of regulatory or legal order; prisoners or participants who are legally institutionalized 09. Any country-related specific regulation that would prevent the participant from entering the study 10. Participant not suitable for participation, whatever the reason, as judged by the Investigator, including medical or clinical conditions, or participants potentially at risk of noncompliance to study procedures 11. Participants who are dependent on the Sponsor or Investigator (as defined in section 1.61 of the International Council for Harmonisation (ICH)-Good Clinical Practice (GCP) E6) 12. Participants are employees of the clinical study site or other individuals directly involved in the conduct of the study, or immediate family members of such individuals 13. Any specific situation during study implementation/course that may rise ethics considerations 14. Sensitivity to any of the study interventions, or components thereof, or drug or other allergy that, in the opinion of the Investigator, contraindicates participation in the study |
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E.5 End points |
E.5.1 | Primary end point(s) |
Incidence, severity, relatedness, and seriousness of AEs, and laboratory assessments. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Through duration of the study (up to 55 months) |
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E.5.2 | Secondary end point(s) |
Annualized bleeding rate in the treatment period. Annualized spontaneous bleeding rate in the treatment period. Annualized joint bleeding rate in the treatment period. Change in haemophilia quality of life questionnaire for adults physical health score and total score in the treatment period (in participants ≥17 years of age). |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Through duration of treatment (up to 48 months) |
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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 | Yes |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
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 | 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 | 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 |
Will this trial be conducted at a single site globally?
| No |
E.8.4 | Will this trial be conducted at multiple sites globally? | Yes |
E.8.6 Trial involving sites outside the EEA |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
Australia |
Bulgaria |
Canada |
China |
Denmark |
France |
Germany |
Hungary |
India |
Ireland |
Israel |
Italy |
Japan |
Korea, Republic of |
Malaysia |
Portugal |
Russian Federation |
South Africa |
Spain |
Taiwan |
Turkey |
Ukraine |
United Kingdom |
United States |
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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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Last Patient Last Visit (LPLV) |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.2 | In all countries concerned by the trial years | 6 |
E.8.9.2 | In all countries concerned by the trial months | 7 |
E.8.9.2 | In all countries concerned by the trial days | 3 |