E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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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 | 19.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10018937 |
E.1.2 | Term | Haemophilia A |
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 |
The primary objective is to evaluate the product medically important events (FVIII inhibitor development) in Chinese hemophilia A subjects during treatment with Xyntha |
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E.2.2 | Secondary objectives of the trial |
To evaluate the overall safety of Xyntha, including the occurrence of AEs and SAEs
The responses to all on-demand treatment with Xyntha for all bleeds (4 point scale of assessment)
Number of Xyntha infusions to treat each new bleed for on-demand treatment
Hemostatic efficacy (Excellent, Good, Moderate or None) for surgical prophylaxis treatment
Blood loss for surgical prophylaxis treatment
Transfusion requirement for surgical prophylaxis treatment
The average infusion dose and total factor VIII consumption for on-demand treatment and surgical prophylaxis treatment
The incidence of less than expected therapeutic effect (LETE) in the on-demand and low recovery (when available) settings |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Male and/or Female subjects with Hemophilia A.
- Subjects/parents/legal representatives must be able to comply with registry procedures (informed consent/assent process, clinical visits, reporting of infusion and bleed data, reporting of adverse events, etc).
- Evidence of a personally signed and dated informed consent document indicating that the subject (or a legally acceptable representative, parent(s)/legal guardian) has been informed of all pertinent aspects of the study. |
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E.4 | Principal exclusion criteria |
- Presence of any other bleeding disorder in addition to hemophilia A.
- Treatment with immunomodulatory therapy (e.g., intravenous immunoglobulin, routine systemic corticosteroids, cyclosporins, anti-TNF agents) within 30 days prior to study entry or planned use for the duration of their study participation.
- Subjects with a past history of, or current factor VIII inhibitor. For laboratory-based assessments, any Bethesda inhibitor titer greater than the laboratory’s normal range or ≥0.6 BU/mL.
- Subjects with known hypersensitivity to the active substance or to any of the excipients of Xyntha.
- Subjects with a known hypersensitivity to Chinese Hamster Ovary cell proteins.
- Unwilling or unable to follow the terms of the protocol.
- Any condition which may compromise the subject’s ability to comply with and/or perform study-related activities or that poses a clinical contraindication to study participation (these conditions include, but are not limited to, inadequate medical history to assure study eligibility; expectation of poor compliance in provision of observations for study-related documentation), in the opinion of the Investigator.
- Participation in other studies involving investigational drug(s) (Phases 1-4) within 30 days before the current study begins and/or during study participation (exception for studies on Xyntha).
- Subjects who are investigational site staff members directly involved in the conduct of the study and their family members, site staff members otherwise supervised by the Investigator, or subjects who are Pfizer employees directly involved in the conduct of the study. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Safety as measured by FVIII inhibitor development - To evaluate the product medically important events (FVIII inhibitor development during the study) in Chinese hemophilia A subjects during treatment with Xyntha. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
During the course of the study (i.e. from day 1 to the last visit) |
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E.5.2 | Secondary end point(s) |
To evaluate the overall safety of Xyntha, including the occurrence of AEs and serious AEs (SAEs), and on demand and surgical prophylaxis efficacy of Xyntha in subjects with hemophilia A in usual care settings in China. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
During the course of the study (i.e. from day 1 to the last visit) |
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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) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
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.8.2.4 | Number of treatment arms in the trial | 1 |
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 | Yes |
E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
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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.8.9.2 | In all countries concerned by the trial years | 1 |
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 | 11 |