E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated | |
E.1.1.1 | Medical condition in easily understood language |
Patients with controlled allergic asthma and under omalizumab treatment for one year. |
Pacientes con asma alergica controlada y en tratamiento durante un año con omalizumab. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Respiratory Tract Diseases [C08] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10001705 |
E.1.2 | Term | Allergic asthma |
E.1.2 | System Organ Class | 100000004855 |
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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 |
The aim of this study is to value if a 50% omalizumab dose reduction in patients who suffer from allergic asthma, will allow to keep the same control of clinical stability. It is assessed by the lack of crisis, quality life and lung function. |
El objetivo del estudio es valorar si una reducción de dosis de omalizumab del 50% en pacientes con asma alérgico grave permitiría mantener el mismo control de estabilidad clínica medido por ausencia de crisis, calidad de vida y función pulmonar. |
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E.2.2 | Secondary objectives of the trial |
- To make a cost minimization analysis of intervention: last vs next year. - To determine a correlation between probable prognostic factors with a good response to the dose reduction |
Los objetivos secundarios son: - Realizar un análisis coste-efectividad de la intervención: año anterior vs año posterior. - Determinar correlación entre posibles factores pronósticos con respuesta a la reducción de dosis. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Patients: 18 - 80 years.
Before 6-month, the patient must have kept the follow inclusion criteria: - Omalizumab adherence: 100%. - ACT ≥19. - Stable FEV1 (>80%) or the best value of those patients that don’t reach the 80% due to previous deterioration lung function. - Don’t make use of oral corticosteroids. - Lack of emergency visits or hospital admissions.
Patients shall go or shall answer to in-person or telephonic visits.
Patients must understand, accept, and sign the informed consent. A legal tutor can also give the authorisation to participate in the study. |
Pacientes entre 18 - 80 años.
Ha de cumplir que en el período de 6 meses anterior a la fecha de inclusión cumpla: - Adherencia al omalizumab. - ACT ≥19. - FEV1 estable (>80%) o el mejor valor en aquellos pacientes que no alcancen el 80% por el deterioro previo del paciente. - No uso de corticoides orales. - Ausencia de visitas a urgencias/ingresos hospitalarios. Se ha de comprometer a acudir o responder a las visitas presenciales o telefónicas programadas.
Entiendan, acepten el estudio y firmen el consentimiento informado. O en aquellos que el representante legal dé la autorización para participar en el estudio. |
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E.4 | Principal exclusion criteria |
Those patients who do not keep the inclusion criteria (see inclusion criteria).
Excluded patients: omalizumab for the treatment of other diseases, use of immunosuppressors or oral corticosteroids and those who have a diagnostic of other chronic respiratory diseases (such as cystic fibrosis, COPD, cancer, or immunodeficiency disease).
Don't consent of legal tutor. |
Aquellos que incumplan alguno de los puntos anteriormente mencionados en el apartado de criterios de inclusión.
Pacientes en tratamiento con omalizumab por otras patologías, en tratamiento concomitante con inmunosupresores o corticoides orales, diagnosticados de otras enfermedades respiratorias crónicas (fibrosis quística, EPOC, cáncer o inmunodeficiencias). |
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E.5 End points |
E.5.1 | Primary end point(s) |
Exacerbation. It is defined as a decline of basal clinical state of patient. As a result, the patient should take specific drugs to resolve the situation.
It is evaluated by dyspnoea, sibilant breath, the increase of respiratory frequency, the need of systemic corticosteroids, decline of FEV1, emergency visits and/or hospital admission. If one of these situations are developed, the intervention will be considered a negative result. Each exacerbation will always verify that is a direct cause of reduction doses, discarding others potential factors. |
Es la presencia de exacerbación durante el periodo del estudio, definida como episodio de deterioro de la situación clínica basal del paciente que implica la necesidad de administrar tratamiento específico. Se medirá registrando: presencia de crisis asmática, necesidad de uso de corticoides sistémicos, deterioro del FEV1 habitual del paciente, visitas a urgencias y/u hospitalización. La presencia o la alteración paramétrica de algunos de estos valores se traducirá como resultado negativo de la intervención. Siempre se comprobará que este resultado es causa directa de la reducción de dosis, descartando otros posibles factores. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
From the first intervention, exacerbation will be evaluated each 4 weeks to the week 48 by telephonic call and a day hospital visit, alternately. After that, exacerbation will be evaluated each 4 months in the follow-up period. |
Se medirá desde la primera modificación de dosis cada 4 semanas hasta completar 48 semanas. Para llevar al cabo el registro se irán alternando visitas presenciales y llamadas telefónicas durante dicho tiempo. Y después se harán cada 4 meses durante el periodo de seguimiento. |
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E.5.2 | Secondary end point(s) |
Other secondary endpoints included: baseline demographic and clinical data, ACT total score, change from baseline in FEV1, blood eosinophil and lymphocytes count and the need of inhaled or systemic corticosteroids and rescue medication. Others as: FeNO, IgE, FcREI of basophils and omalizumab plasmatic concentration. Economical cost of drug dispensation will be collected by registering dispensations, hospital admissions, emergency visit and requeriment of injectable corticosteroids. |
Otras variables secundarias serán: variables demográficas y clínicas, el resultado del Asthma Control Test (ACT), el FEV1 del paciente, la necesidad de medicación de rescate, el hemograma, el uso de corticoides inhalados u orales. Otras variables de medida observacional serán: FeNO, IgE, el nivel de densidad del receptor FcREI de los basófilos y la concentración plasmática del omalizumab El coste económico del omalizumab se valorará según los costes en dispensaciones, visitas a urgencias, ingresos y medicación hospitalarios (corticoides inyectables). |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
- Baseline demographic and clinical data will be only measured in the inclusion visit. - ACT, FEV, the need of inhaled or systemic corticosteroids and rescue medication will be valued every 4 weeks. - Blood eosinophil and lymphocytes count and FeNO will be measured in every presential visit. - FcREI of basophils and IgE count will be determined in inclusion, basal and final visit and week 4, 24,28 and 48. - Plasmatic concentration will be collected in basal and final visit and week 24 and 48. - The cost of omalizumab will be calculated at the end of the study. |
- Datos demográficos y clínicos serán registrados solo en la visita basal. - El ACT, el FEV1, el uso de medicación de rescate, de corticoides inhalados u orales será valorado cada 4 semanas. - Eosinofilia y linfocitos y la prueba del FeNO será medico en cada visita presencial. - El valor de IgE y el del receptor FcREI de los basófilos será determinado en la visita de inclusión, basal y final y en las semanas 4, 28 y 48. - La concentración plasmática será recogida en la visita basal y final y en las semanas 24 y 48. - El coste del omalizumab se calculará al final del estudio. |
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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 | Yes |
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 | Yes |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | Yes |
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 | Yes |
E.8.1.7.1 | Other trial design description |
Estudio de un solo brazo |
Single arm study |
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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
| 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
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The trial will stop before the last visit if more than 15% of patients develop an exacerbation. It will be considered that there are more risks than benefits. It was estimated by searching the total registered exacerbations in two asthma real-life studies. Other criteria are :development of adverse events not including in data sheet or not-compliance of study’s rule |
El estudio se parará antes de la última visita, en el caso de que se supere un 15% de pacientes que presenten crisis o exacerbación, el estudio finalizará, por demostrar un mayor riesgo que beneficio de la intervención. Se determina este porcentaje en base a los estudios en vida real que se han llevado a cabo (Pelai et al y Schreiber J et al.) Otros criterios serán: la aparición de acontecimientos adversos no esperados a los de la ficha técnica o el incumplimiento de las reglas del estudio. |
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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 | |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |