E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
seasonal influenza prophylaxis in trasplant receipiens |
profilaxis de la gripe estacional en pacientes receptores de órganos sólidos |
|
E.1.1.1 | Medical condition in easily understood language |
to determine whether two doses of flu vaccine in trasplant receipiens is better than one single dose. |
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E.1.1.2 | Therapeutic area | Body processes [G] - Immune system processes [G12] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10021829 |
E.1.2 | Term | Infection in solid organ transplant recipients |
E.1.2 | System Organ Class | 10021881 - Infections and infestations |
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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 |
to study whether two doses of flu vaccine work better than single dose in transplant recipiens |
|
E.2.2 | Secondary objectives of the trial |
1. To assess the humoral immune response to one and two doses of seasonal flu vaccine through the levels of neutralizing antibodies in serum. 2. To determine the specific cellular immune response caused after one and two doses of seasonal flu vaccine through the stimulation of cells in memory vito specific influenza virus A and B. 3. To evaluate the clinical efficacy of seasonal flu vaccine in the recipient of solid organ transplantation. 4. To assess the humoral and cellular immunity in the long term (one year) of the seasonal flu vaccine. 5. To establish the effectiveness of one and two doses of seasonal flu vaccine in groups with lower response to the vaccine. (Liver failure, use of mTOR inhibitors, first 6 months after transplantation). 6. To determine the safety of two doses of seasonal flu vaccine. |
1. Evaluar la respuesta inmune humoral a una y dos dosis de vacuna de la gripe estacional a través de los niveles de anticuerpos neutralizantes en suero. 2. Determinar la respuesta inmune celular específica originada tras una y dos dosis de vacuna de la gripe estacional a través de la estimulación in vito de células de memoria específicas de los virus de la gripe A y B. 3. Evaluar la eficacia clínica de la vacuna de la gripe estacional en el receptor de trasplante de órgano sólido. 4. Evaluar la inmunidad celular y humoral a largo plazo (un año) de la vacuna de la gripe estacional. 5. Establecer la efectividad de una y dos dosis de vacuna de la gripe estacional en grupos con menor respuesta a la vacuna. (insuficiencia hepática, uso de inhibidores de mTOR, primeros 6 meses tras el trasplante). 6. Determinar la seguridad de dos dosis de vacuna de gripe estacional. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. solid organ transplant receipation. 2. 16 years or older. 3. More than 30 days after transplantation. 4. Negative pregnancy test for women of childbearing age 5. The patient must give informed consent |
El paciente debe cumplir todos los criterios siguientes:
1. Receptor de trasplante de órgano sólido. 2. Edad mayor o igual a 16 años. 3. Más de 30 días postrasplante. 4. Test de gestación negativo en caso de mujeres en edad fértil 5. El paciente debe otorgar su consentimiento por escrito |
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E.4 | Principal exclusion criteria |
1. No written informed consent. 2. Acute rejection within 15 days prior to vaccination. 3. Pregnancy. 4. Hypersensitivity to the active substance, any of the excipients and waste, for example: eggs, egg albumin, chicken proteins. 5. History of a previous serious reaction to immunization (eg Guillain-Barré syndrome). |
1. Ausencia de consentimiento escrito previa información del estudio al paciente (anexo1). 2. Rechazo agudo en los 15 días previos a la vacunación. 3. Embarazo. 4. Hipersensibilidad a los principios activos, a cualquiera de los excipientes y a los residuos, por ejemplo: huevos, a la ovoalbúmina, proteínas de pollo. 5. Antecedentes de una reacción a vacunación previa grave (por ejemplo síndrome de Guillain-Barré). |
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E.5 End points |
E.5.1 | Primary end point(s) |
Difference in seroconversion rates in both groups |
Diferencia de las tasas de seroconversión en ambos grupos |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
at 5 and 10 weeks of the first vaccine dose |
A las 5 y a las 10 semanas de la primera dosis de vacunación |
|
E.5.2 | Secondary end point(s) |
1. Geometric average postvaccination antibody titers and rate of increase between pre-and post-vaccination geometric mean, post-vaccination seroprotection rate (or percentage of individuals with a titer ? 1 / 40 as measured by RIH). 2. Occurrence of grade 3 or 4 toxicity, death, hospitalization, retransplantation, acute rejection and chronic rejection. 3. Detection of clinical cases of influenza following immunization. Nasal swabs to confirm infection with influenza virus by RT-PCR. Clinical severity (hospitalization, ICU admission, death, rejection). Time to clinical stability. |
1. Media geométrica de los títulos de anticuerpos postvacunal y razón de incremento entre media geométricas pre y postvacunales, tasa de seroprotección postvacunal (o porcentaje de individuos con un título de anticuerpos ?1/40 medido por RIH). 2. Aparición de toxicidad grados 3 ó 4, muerte, hospitalización, retrasplante, rechazo agudo y rechazo crónico. 3. Detección de casos clínicos de gripe postvacunal. Frotis nasal para la confirmación de la infección por el virus de la gripe mediante RT-PCR. Gravedad del cuadro clínico (hospitalización, ingreso en UCI, muerte, rechazo). Tiempo hasta la estabilidad clínica. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
At selection time, 5 weeks, 10 weeks and 1 year. |
Selección, 5 semanas, 10 semanas y 1 año. |
|
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 | 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) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
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 | Yes |
E.8.2.3.1 | Comparator description |
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E.8.2.4 | Number of treatment arms in the trial | 2 |
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 | 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
|
Duración del tratamiento: a las 5 y 10 semanas (solo brazo B) desde el inicio, seguimiento hasta UN año después de la visita de screening. |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |
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 | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |