| E.1 Medical condition or disease under investigation |
| E.1.1 | Medical condition(s) being investigated |
| Type 1 von Willebrand disease and mild hemophilia A |
|
| MedDRA Classification |
| 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 aim of this project is to gain insight in influence of Simvastatin therapy on DDAVP stimulated increase of von Willebrand factor and Factor VIII in patients with mild hemophilia A and von Willebrand disease type I |
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| E.2.2 | Secondary objectives of the trial |
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| E.2.3 | Trial contains a sub-study | No |
| E.3 | Principal inclusion criteria |
1. Mild hemophilia A: defined as a F VIII deficiency with a F VIII plasma concentration of 10-40 IU mL-1, confirmed on at least two occasions.
2. or Von Willebrand disease type 1: defined as a VWF deficiency with a VWF plasma concentration of 10-40 IU mL-1, confirmed on at least two occasions.
3. DDAVP response has been tested at least once before, vWF activity and vWF antigen after previous DDAVP infusion should be at least two fold increased and should not exceed > 200 %.
4. Age: 18 – 60 years
5. Male
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| E.4 | Principal exclusion criteria |
1. Moderate/Severe hemophilia A: defined as a F VIII deficiency with a F VIII:C plasma concentration of < 2 IU mL-1, confirmed at at least two occasions.
2. Von Willebrand disease type 2 or 3
3. Clinical history of any other hemostatic or thrombotic disorder.
4. Clinical history of any of the following medical conditions: - Allergy for Simvastatin of DDAVP - Habitual or psychogenic polydipsia - Serious heart failure of other disorders requiring treatment with diuretics - Cardiovascular disease - (Predisposition of) hyponatriëmia - SIADH - Angina pectoris - Cystic fibrosis - Current infection (temperature > 38,0 degrees Celcius or clinical manifestations of infection) - (history of) alcohol abuse, defined as more than 21 units/week - Hypothyrodism, not adequately treated - Familiar muscle disorders - Liver function disorder defined as the upper normal limit of ALAT and ASAT - CPK above three times upper normal limit - Renal impairment - Diabetes mellitus type I and II
5. Use of any of the following medications: - Indometacine or other prostaglandin synthesis inhibitors - Tricyclic antidepressiva, SSRI's, chloorpromazine and carbamazepine or other medications that disrupt the release of anti-diuretic hormone - Loperamide - CYP3A4-inhibitors
6. Medical indication for statin therapy.
7. Co-enrolment other clinical study
8. DDAVP response has not previously been tested or vWF antigen and vWF activity increase after previous DDAVP exposure was less than two fold
9. First relative (brother/sister) participating in this study
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| E.5 End points |
| E.5.1 | Primary end point(s) |
Plasma levels of von Willebrand Factor antigen, von Willebrand factor activity and factor VIII activity after DDAVP stimulation during statin therapy.
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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 | No |
| E.6.5 | Efficacy | No |
| 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) | 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 | Information not present in EudraCT |
| E.8.1.2 | Open | Information not present in EudraCT |
| E.8.1.3 | Single blind | Information not present in EudraCT |
| E.8.1.4 | Double blind | Information not present in EudraCT |
| E.8.1.5 | Parallel group | Information not present in EudraCT |
| E.8.1.6 | Cross over | Information not present in EudraCT |
| E.8.1.7 | Other | Information not present in EudraCT |
| E.8.2 | Comparator of controlled trial |
| E.8.2.1 | Other medicinal product(s) | Information not present in EudraCT |
| E.8.2.2 | Placebo | Information not present in EudraCT |
| E.8.2.3 | Other | Information not present in EudraCT |
| 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 | No |
| 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 | Information not present in EudraCT |
| 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 | 0 |
| E.8.9.1 | In the Member State concerned months | 6 |
| E.8.9.1 | In the Member State concerned days | 0 |
| E.8.9.2 | In all countries concerned by the trial years | 0 |
| E.8.9.2 | In all countries concerned by the trial months | 0 |
| E.8.9.2 | In all countries concerned by the trial days | 0 |