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 |
VWD is an inherited bleeding disorder caused by deficiency of a protein normally found in the blood called von Willebrand factor (VWF). |
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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 | PT |
E.1.2 | Classification code | 10047715 |
E.1.2 | Term | Von Willebrand's disease |
E.1.2 | System Organ Class | 10010331 - Congenital, familial and genetic disorders |
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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 of the study is to collect long-term data on the haemostatic efficacy of Voncento in subjects with VWD who require a VWF product to control an NSB event or as prophylaxis therapy. |
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E.2.2 | Secondary objectives of the trial |
The secondary objectives of the study are:
• To assess the efficacy of Voncento in the prevention and treatment of surgical bleeding events.
• To collect long-term data on the safety of Voncento used as on-demand therapy to treat an NSB event or as prophylaxis therapy. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Subjects meeting all of the following inclusion criteria may be enrolled into the study:
1. Capable of providing written informed consent and willing and able to adhere to all protocol requirements, or the subject’s parent(s) or legally acceptable representative(s) is / are capable of providing written informed consent.
2. Male or female.
3.Subjects of any age.
4. Diagnosis of severe type 1, 2A, or 3 VWD where VWF:RCo is <20% at screening.
5. Availability of detailed patient documentation (eg, medical record, diary, logbook) covering prior bleeding and VWD treatment history over the past 12 months prior to screening.
6. Subjects where DDAVP treatment is ineffective or contraindicated. In countries where DDAVP is not available only subjects with type 3 VWD are allowed to be enrolled.
7. A documented vaccination against hepatitis A and B in the subject’s medical record (or presence of antibodies against hepatitis A and B due to either a previous infection or vaccination) prior to the first dose of Voncento.
8. Investigator believes that the subject or the subject’s parent(s) or legally acceptable representative(s) is / are willing and able to adhere to all protocol requirements.
9.Subjects who require a VWF product to control a NSB event or for
ongoing prophylactic therapy. |
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E.4 | Principal exclusion criteria |
Subjects meeting any of the following exclusion criteria must not be enrolled into the study:
1. A known history of VWF or FVIII inhibitors, or are suspected to have VWF or FVIII inhibitors.
2. Suffering any acute or chronic medical condition, other than VWD, which may, in the opinion of the investigator, affect the conduct of the study.
3. Known or suspected hypersensitivity or previous evidence of severe side effects to Voncento, VWF / FVIII concentrates, or human albumin.
4. Participated in another interventional clinical study within 30 days before the first administration of Voncento or at any time during the study.
5. Female subjects who are pregnant, breast-feeding, or who have a positive pregnancy test at screening or have the intention to become pregnant during the course of the study.
6. Female subjects of childbearing potential or male subjects who have a female partner of childbearing potential, who either do not use or are not willing to use a medically reliable method of contraception or who are not sexually abstinent during the study, or not surgically sterile.
7. Alcohol, drug, or medication abuse within 1 year before the study.
8. Currently receiving a therapy not permitted during the study
9. Previous participation in a Voncento / Biostate study (patients can also not be enrolled a second time into the current study).
10. Mental condition rendering the subject (or the subject’s legally acceptable representative[s]) unable to understand the nature, scope, and possible consequences of the study.
11. Any issue that, in the opinion of the investigator, would render the subject unsuitable for participation in the study. |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoints of the study are:
• Subject’s and investigator’s subjective assessment of haemostatic efficacy of Voncento in its usage for an NSB event.
• Number of NSB events per month and annual bleeding rate (ABR).
• Number of infusions and total dose of Voncento (in IU VWF:RCo) required to treat an NSB event. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
• Subject’s and investigator’s subjective assessment of haemostatic efficacy of Voncento in its usage for an NSB event: Assessed daily by the subject until the bleed stops, for the duration of the subject's participation in the study (approximately 12 months). Assessed by the Investigator at approximately Months 3, 6, 9 and 12.
• Number of infusions: For the duration of the subject's participation in the study (approximately 12 months)
•Total dose of Voncento (in IU VWF:RCo) required to treat an NSB event: For the duration of the subject's participation in the study (approximately 12 months).
•Number of NSB events per month: For the duration of the subject's
participation in the study (approximately 12 months). |
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E.5.2 | Secondary end point(s) |
The secondary endpoints of the study are:
• Investigator’s or surgeon’s assessment of blood loss during a surgical event and an overall haemostatic efficacy assessment by the investigator after the surgical procedure.
• Number of NSB events per month.
• Number of infusions and total dose of Voncento (in IU VWF:RCo) required to treat a surgical bleeding event.
• Nature and incidence of AEs, including serious adverse events (SAEs), AEs related to Voncento, and adverse events of special interest (AESIs), and number of VWF and FVIII inhibitors which occur during the administration of Voncento as on-demand therapy to treat an NSB or surgical bleeding event. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
The secondary endpoints of the study are:
• Investigator's or surgeon's assessment of blood loss during a surgical event and an overall haemostatic efficacy assessment by the investigator after the surgical procedure.
• Number of infusions and total dose of Voncento (in IU VWF:RCo)
required to treat a surgical bleeding event.
• Nature and incidence of AEs, including serious adverse events (SAEs), AEs related to Voncento, and adverse events of special interest (AESIs), and number of VWF and FVIII inhibitors which occur during the
administration of Voncento as on-demand therapy to treat an NSB or surgical bleeding event.
•Haemostatic efficacy - prophylaxis: App. every month (subject
assessment) and every 3 months (Investigator assessment)during
subject's participation in study |
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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 | Yes |
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 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 3 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 15 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
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 | |
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 | 5 |