E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Severe von Willebrand disease including types I, II, and III with VWF:RCof <15-20% |
Enfermedad de von Willebrand severa incluyendo los tipos I, II y III con VWF:RCof <15-20% |
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E.1.1.1 | Medical condition in easily understood language |
Severe von Willebrand disease |
Enfermedad de von Willebrand severa |
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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 | 14.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10068986 |
E.1.2 | Term | Von Willebrand's factor activity decreased |
E.1.2 | System Organ Class | 10022891 - Investigations |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.1 |
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.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10055168 |
E.1.2 | Term | Von Willebrand's factor deficiency |
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 | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
1. Evaluate the in vivo recovery and the pharmacokinetic profile of Fanhdi® in a pediatric population (<6 years of age) with severe von Willebrand disease 2. Evaluate the efficacy of the product as a treatment for bleeds. 3. Evaluate the efficacy of the product as prophylaxis for surgeries. |
1. Evaluar la recuperación in vivo y el perfil farmacocinético de Fanhdi® en una población pediátrica (<6 años) con enfermedad de von Willebrand grave. 2. Evaluar la eficacia del producto como tratamiento en hemorragias. 3. Evaluar la eficacia del producto como profilaxis en cirugías. |
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E.2.2 | Secondary objectives of the trial |
1. Determine the long term clinical efficacy of prophylactic and/or on-demand treatment. 2. Evaluate the clinical safety, as well as the immunogenicity and thrombogenicity of the product. 3. Evaluate the tolerance to the product administration |
1. Determinar la eficacia clínica a largo plazo de la profilaxis y/o el tratamiento a demanda. 2. Evaluar la seguridad clínica, así como la inmunogenicidad y la trombogenicidad del producto. 3. Evaluar la tolerancia a la administración del producto. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Patients diagnosed with severe hereditary von Willebrand's disease (VWF:RCof<20 IU/dl) type 1, 2 or 3, independent of prior treatment 2. Patients less than 6 years of age 3. Patients that do not adequately respond to treatment with desmopressin 4. Positive anti-HBs and anti-HAV antibodies due to prior exposure or vaccination. If negative, vaccination to hepatitis A and B with be initiated before the first infusion of Fanhdi® 5. Signed informed consent by the patient's legal representative (mother, father o tutor) |
1. Pacientes diagnosticados con EVW hereditaria grave (VWF:RCof < 15-20 UI/dl), de tipo 1, 2 y 3, independientemente del tratamiento previo. 2. Pacientes menores de 6 años de edad. 3. Pacientes que no respondan adecuadamente al tratamiento con desmopresina 4. Anticuerpos anti-HBs y anti-HVA positivos por exposición previa o vacunación. Si son negativos se iniciará la vacunación para las hepatitis A y B antes de la primera infusión de Fanhdi® 5. Firma del consentimiento informado por parte del representante legal del paciente (madre, padre o tutor). |
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E.4 | Principal exclusion criteria |
1. The subject has been diagnosed of acquired VWD2. Patients bleeding at the time of the first infusion or the 10 days prior to the infusion 3. Subjects treated with desmopressin or another VWF containing FVIII concentrate during the 5 days prior to the infusion of the investigational product 4. The subject is known or suspected to have present or past inhibitor activity (antibodies) directed against FVIII or VWF 5. The subject is known to have history of intolerance to any Fanhdi® containing substance 6. The subject is known to have history of anaphylactic reaction(s) to blood or blood components 7. Subjects presenting severe platelet dysfunctions due to drugs (aspirin, other NSAIDs, etc.) or other pathologies (uremic thrombopathy, hematological diseases) 8. Immunocompromised subjects or HIV positive that have less than 400 CD4+/?l, a viral load >400 copies/ml, platelet count lower than 100x10·9/l, present any additional factor that elevates the risk of bleeding or that have a life expectancy less than 1 year 9. Subjects presenting anemia (hemoglobulin <11 g/dl) 10. Subjects diagnosed with metabolic diseases that are not clinically controlled, such as diabetes mellitus, that could potentially interfere with the interpretations of the study 11. The subject is participating in another clinical study involving an investigational treatment, or participated within the past month 12. If it is anticipated that the subject will be treated with other products containing FVIII or VWF different from Fanhdi® during a period of one year 13. The subject is unlikely to adhere to the protocol requirements of the study 14. Any subject that does not dispose of a frozen plasma sample prior to the first infusion of Fanhdi® |
1.Pacientes que presenten enfermedad de von Willebrand adquirida. 2.Pacientes que presenten un episodio hemorrágico en el momento de la primera infusión del fármaco en los 10 días previos a la infusión. 3.Pacientes que hayan sido tratados con desmopresina o con otro concentrado de FVIII conteniendo FVW en los 5 días previos a la infusión del fármaco en estudio. 4.Pacientes que en algún momento de la historia de su enfermedad hayan presentado o presenten anticuerpos anti-FVW o anti-FVIII (>0.5 UB). 5.Pacientes con alergias conocidas a alguno de los componentes de Fanhdi® 6.Pacientes con historia conocida de reacciones graves o frecuentes a productos derivados del plasma. 7.Pacientes que presenten alteraciones de la función plaquetaria de forma relevante, debido a fármacos (aspirina, otros AINEs, etc.) o a otras patologías (trombopatía urémica, enfermedades hematológicas). 8.Pacientes inmunocomprometidos o HIV positivos que tengan menos de 400 CD4+/?l, carga viral mayor a 400 copias/ml, recuento plaquetario menor a 100x10·9/l, presenten algún factor adicional que aumente el riesgo hemorrágico o tengan un pronóstico de vida inferior a 1 año. 9.Paciente que presente anemia (hemoglobina < 11 g/dl). 10.Paciente que padezca enfermedades metabólicas no controladas clínicamente, como diabetes mellitus, que pudiera interferir con las interpretaciones del estudio. 11.Haber participado en otros ensayos clínicos o haber recibido cualquier otro fármaco en investigación durante el mes previo al inicio del estudio. 12.Previsión de que pueda ser tratado con otros productos conteniendo FVIII o FVW diferentes a Fanhdi® en un período de un año. 13.Sospecha de condiciones que pudieran afectar al cumplimiento del protocolo por parte del paciente. 14.Cualquier paciente del que no se disponga de una muestra de plasma congelada previa a la primera infusión de Fanhdi® |
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E.5 End points |
E.5.1 | Primary end point(s) |
1. Determine the half-life and in vivo recovery of VWF:RCof and VWF:Ag, the half-life and the apparent in vivo recovery of FVIII:C, and other pharmacokinetic parameters after a single dose of Fanhdi® in pediatric patients with severe VWD. 2. Determine the clinical efficacy of Fanhdi® as replacement therapy in preventing excessive bleeding during spontaneous or traumatic induced bleeding episodes through the study of the duration and severity of the bleed, achievement of hemostasis, total number of infusions and doses administered for each bleeding episode. 3. Determine the clinical efficacy of Fanhdi® as replacement therapy in preventing excessive bleeding in patients who undergo surgical procedures or invasive procedures through the study of the duration and seriousness of bleeding episodes and the achievement of hemostasis. |
1. Determinar la semivida y recuperación in vivo de FVW:RCof y FVW:Ag así como la semivida aparente y recuperación in vivo del FVIII:C, y otros parámetros farmacocinéticos después de una única infusión de concentrado de Fanhdi® en pacientes pediátricos con EVW grave. 2. Determinar la eficacia clínica en el tratamiento de episodios hemorrágicos, espontáneos o traumáticos mediante el estudio de la duración y severidad del sangrado, consecución de hemostasia, número de infusiones y dosis total requerida para cada episodio hemorrágico. 3. Determinar la eficacia clínica como profilaxis en pacientes sometidos a cirugías y procedimientos invasivos mediante el estudio de la duración y gravedad del sangrado y la consecución de hemostasia. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
1. Pharmacokinetic parameters will be assessed within a maximum of 15 days after the recruitment visit. Subjects with type III VWD will undergo a second pharmacokinetic study 6 months after the first PK analysis. 2. Whenever a bleeding treated in the hospital occurs throughout the 12 month follow-up period. 3. Whenever a surgery or invasive procedure occurs throughout the 12 month follow-up period. |
1. Los parámetros farmacocinéticos serán evaluados en un máximo de 15 días después de la visita de reclutamiento. Los sujetos con EVW tipo III se someterán a un segundo estudio farmacocinético 6 meses después del primer análisis farmacocinético. 2. Siempre que ocurra un sangrado tratado en el hospital a lo largo de los 12 meses de seguimiento. 3. Siempre que ocurra una cirugía o un procedimiento invasivo a lo largo de los 12 meses de seguimiento. |
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E.5.2 | Secondary end point(s) |
1. Evaluate long term clinical efficacy of profilaxis and/or long term demand studying concentrates requirements and the number of haemorragic epsiodes treated. 2. Evaluate product's clinical security, inmunogenicity and trombogenicity detecting presence of FVIII and FVW inhibitors and evaluating clinical trombosis in patients undergoing quirurgic or invasive procedures. 3. Evaluate the product's administration tolerance detecting adverese reactions, including clinically significant changes in vital signs or lab paramenters. |
1. Evaluar la eficacia clínica a largo plazo de la profilaxis y/o el tratamiento a demanda mediante el estudio de los requerimientos de concentrado y del número de episodios hemorrágicos tratados. 2. Evaluar la seguridad clínica, así como la immunogenicidad y la trobogenicidad del producto mediante la detección de la presencia de inhibidores de FVIII y del FVW y la evaluación clínica de trombosis en aquellos pacientes sometidos a procedimientos quirúrgicos o invasivos. 3. Evaluar la tolerancia a la administración del producto mediante la detección de reacciones adversas, incluyendo cambios clínicamente significativos en los signos vitales o parámetros de laboratorio. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1. The clinical safety and tolerance to Fanhdi will be assessed since recruitment and throughout the 12 month follow-up period. 2. Immunogenicity will be measured before the first infusion of the investigational product, every three months throughout the follow-up period and when there exists a clinical suspicion of the formation of inhibitors. 3. Thrombogenicity will be measured in all subjects undergoing surgery or an invasive procedure. |
1. La seguridad clínica y la tolerancia a Fanhdi se evaluará desdel reclutamiento a lo largo de los 12 meses de seguimiento. 2. La inmunogenicidad se evaluará antes de la primera infusión del producto en investigación, cada tres meses a lo largo del período de seguimiento y cuando exista una sospecha clínica de formación de inhibidores. 3. La trombogenicidad se evaluará en todos los sujetos que se sometan a cirugías o a procedimientos invasivos. |
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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 | 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 | 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 |
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 | 5 |
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 | 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 | 5 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |