E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Eosinophilic Gastritis and/or Gastroenteritis |
Gastritis y/o Gastroenteritis eosinofílica |
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E.1.1.1 | Medical condition in easily understood language |
Eosinophilic Gastritis and/or Gastroenteritis |
Gastritis y/o Gastroenteritis eosinofílica |
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E.1.1.2 | Therapeutic area | Not possible to specify |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 23.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10083619 |
E.1.2 | Term | Eosinophilic gastritis |
E.1.2 | System Organ Class | 10017947 - Gastrointestinal disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10017902 |
E.1.2 | Term | Gastroenteritis eosinophilic |
E.1.2 | System Organ Class | 10017947 - Gastrointestinal 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 |
PartA/B: To compare the effect of benralizumab with placebo on histologic signs and gastrointestinal symptoms in patients with eosinophilic gastritis and/or gastroenteritis |
Parte A/B: comparar el efecto benralizumab con placebo sobre los signos histológicos y los síntomas gastrointestinales en pacientes con gastritis y/o gastroenteritis eosinofílica. |
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E.2.2 | Secondary objectives of the trial |
-Part A/B: To compare the effect of benralizumab with placebo on clinical features of eosinophilic gastritis/ gastroenteritis and disease activity. -Part A/B: To compare the effect of benralizumab with placebo on rescue corticosteroid use. -Part A/B: To compare the effect of benralizumab with placebo on health-related quality of life in patients with EG/EGE. -To assess the pharmacokinetics and immunogenicity of benralizumab in patients with EG/EGE. -To assess the safety of benralizumab in patients with eosinophilic gastritis and/or gastroenteritis. |
- Parte A/B: Comparar el efectosde benralizumab con placebo sobre las características clínicas de la gastritis/gastroenteritis eosinofílica y la actividad de la enfermedad. - Parte A/B: Comparar el efecto de benralizumab con placebo en el uso de corticoides como medicación de rescate. - Parte A/B: Comparar el efecto de benralizumab con placebo sobre la calidad de vida relacionada en pacientes con EG/EGE. - Evaluar la farmacocinética e inmunogenicidad de benralizumab e apcientes con EG/EGE. - Evaluar la seguridad de benralizumab en pacientes con gastritis y/o gastroenteritis eosinofílica |
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
To characterize the patient experience of EG/EGE and its treatments. |
Caracterizar la experiencia del paciente con EG/EGE y sus tratamientos. |
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E.3 | Principal inclusion criteria |
· Aged >= 12 years of age at the time of signing the ICF or informed consent or assent form. · Confirmed diagnosis of EG/EGE for at least 3 months prior to screening. · Baseline Eosinophilic gastritis, with or without duodenitis, or eosinophilic duodenitis alone confirmed by biopsy with a gastric count of ≥30 eosinophils/hpf in at least 5 hpfs and/or duodenal eosinophil count ≥30 eosinophils/hpf in at least 3 hpfs without any other cause for the gastrointestinal eosinophilia. · Symptoms including at least moderate abdominal pain, nausea, bloating, early satiety, and/or loss of appetite · Must be adherent to daily PRO assessments including at least 8 of 14 symptom assessments in the 14 days prior to randomization · If on background medications for EG/EGE, the medications should be stable at least 4 weeks prior to the run-in period. · Willing and able to comply with all study procedures and visit schedule including follow-up visits · Women of childbearing potential must agree to use a highly effective form of birth control (confirmed by the Investigator) from randomization throughout the study duration and within 12 weeks after last dose if IP. |
• Edad >=12 años en el momento de firmar el FCI o consentimiento informado o formulario de conformidad. • Diagnóstico confirmado de GE/GEE durante al menos 3 meses antes de la selección. • Gastritis eosinofílica basal, con o sin duodenitis, o duodenitis eosinofílica sola confirmada por biopsia con un recuento gástrico de ≥30 eosinófilos/CGA en al menos 5 CGA o recuento de eosinófilos duodenales de ≥30 eosinófilos/CGA en al menos 3 CGA sin ninguna otra causa para la eosinofilia gastrointestinal. • Síntomas que incluyen al menos dolor abdominal moderado, náuseas, hinchazón, saciedad temprana o pérdida del apetito • Debe cumplir con las evaluaciones RCP diarias, incluidas al menos 8 de 14 evaluaciones de síntomas en los 14 días anteriores a la aleatorización • Si está tomando medicamentos de base para GE/GEE, la medicación debe ser estable al menos 4 semanas antes del periodo de reclutamiento. • Dispuesto y capaz de cumplir con todos los procedimientos del ensayo y el programa de visitas, incluidas las visitas de seguimiento • Las mujeres en edad fértil deben aceptar el uso de un método anticonceptivo altamente eficaz (confirmado por el investigador) desde la aleatorización, durante la duración del estudio y en las 12 semanas posteriores a la última dosis si padece PI. |
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E.4 | Principal exclusion criteria |
· Other gastrointestinal disorders such as active Helicobacter pylori infection, history of achalasia, esophageal varices, Crohn's disease, ulcerative colitis, inflammatory bowel disease, or celiac disease. · Hypereosinophilic syndrome or eosinophilic granulomatosis with polyangiitis. · Current malignancy, or history of malignancy, except for patients who have had basal cell, localized squamous cell carcinoma of the skin, or in situ carcinoma of the cervix are eligible provided that the patient is in remission and curative therapy was completed at least 12 months prior to the date of informed consent. · History of anaphylaxis to any biologic therapy or vaccine. · Current active liver disease. · Helminth parasitic infection diagnosed within 24 weeks prior to the date informed that has not been treated with or has failed to respond to standard of care therapy. · Known immunodeficiency disorder including testing positive for HIV. · Concomitant use of immunosuppressive medication. · Receipt of live attenuated vaccines 30 days prior to date of informed consent or assent. · Receipt of inactive vaccines within 7 days of informed consent or assent. · Initiation or change of a food-elimination diet regimen or re-introduction of a previously eliminated food group from 6 weeks prior to start of the run-in period and unable or unwilling to remain on a stable diet until the completion of Week 52. · Currently pregnant or breast-feeding. |
• Otros trastornos gastrointestinales como infección activa por Helicobacter pylori, antecedentes de acalasia, várices esofágicas, enfermedad de Crohn, colitis ulcerosa, enfermedad intestinal inflamatoria o celiaquía. • Síndrome hipereosinofílico o granulomatosis eosinofílica con poliangitis. • Neoplasia maligna actual o antecedentes de neoplasia maligna, excepto en el caso de pacientes que hayan tenido carcinoma de células basales, carcinoma de células escamosas localizado de la piel o carcinoma in situ del cuello uterino, son elegibles siempre que el paciente esté en remisión y se haya completado el tratamiento curativo al menos 12 meses antes de la fecha del consentimiento informado. • Antecedentes de anafilaxia a cualquier tratamiento biológico o vacuna. • Enfermedad hepática activa actual. • Infección parasitaria por helmintos diagnosticada en las 24 semanas anteriores a la fecha informada, que no se ha tratado o no ha respondido al tratamiento de referencia. • Trastorno de inmunodeficiencia conocido que incluye pruebas positivas para el VIH. • Uso de medicamentos inmunodepresores simultáneos. • Recepción de vacunas vivas atenuadas 30 días antes de la fecha del consentimiento informado o conformidad. • Recepción de vacunas inactivas en los 7 días posteriores al consentimiento informado o conformidad. • Inicio o cambio de un régimen dietario de eliminación de alimentos o reintroducción de un grupo de alimentos previamente eliminado en las 6 semanas anteriores al inicio del periodo de reclutamiento y no puede o no quiere permanecer en una dieta estable hasta completar la semana 52. • Embarazada o en periodo de lactancia en la actualidad. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Dual primary endpoints 1). Proportion of patients achieving a histological response in the stomach and/or in the duodenum Histologic Endpoint:defined as ≤6 eosinophils/high power field (hpf) in the stomach and/or, ≤15 eosinophils/hpf in the duodenum at Week 24 2). Absolute change in symptoms of EG/EGE |
Criterios de valoración principales dobles 1). Proporción de pacientes que lograron una respuesta histológica en el estómago o en el duodeno Criterio de valoración histológico: definido como ≤6 eosinófilos/campo de gran aumento (CGA) en el estómago o ≤15 eosinófilos/CGA en el duodeno en la semana 24 2). Cambio absoluto en los síntomas de GE/GEE |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Both at Week 24 |
Ambos a la semana 24 |
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E.5.2 | Secondary end point(s) |
Tissue eosinophilis -Percentage change from baseline in tissue eosinophils (stomach and/or duodenum if applicable) at Week 24 Treatment response -Proportion of patients who achieve treatment response: tissue remission (≤ 6 eosinophils/hpf in the stomach and ≤ 15 eosinophils/hpf in the duodenum, if applicable) and an improvement in symptoms at Week 24 Diarrhea-free days - Change from baseline in proportion of diarrhea-free days, and change from baseline in frequency of diarrhea episodes at Week 24 Vomiting-free days - Change from baseline in proportion of vomiting-free days, and change from baseline in frequency of vomiting episodes at Week 24 To compare the effect of benralizumab with placebo on rescue use - Proportion of patients with no rescue corticosteroid use up to Week 24 To evaluate the effect of benralizumab on patient reported QOL measures at Week 24 Safety and tolerability - Safety and tolerability will be evaluated in terms of adverse events, vital signs, physical exam, and clinical laboratory parameters at Week 52 |
Eosinófilos tisulares: variación porcentual respecto al inicio en los eosinófilos tisulares (estómago o duodeno según sea aplicable) en la semana 24 Respuesta al tratamiento: proporción de pacientes que logran una respuesta al tratamiento: remisión tisular (≤6 eosinófilos/CGA en el estómago y ≤15 eosinófilos/CGA en el duodeno) y una mejoría de los síntomas en la semana 24 Días sin diarrea: variación respecto al inicio en la proporción de días sin diarrea y variación respecto al inicio en la frecuencia de episodios de diarrea en la semana 24 Días sin vómitos: variación respecto al inicio en la proporción de días sin vómitos y variación respecto al inicio en la frecuencia de episodios de vómitos en la semana 24 Comparar el efecto de benralizumab con placebo sobre el uso de rescate: proporción de pacientes sin uso de corticoides de rescate hasta la semana 24 Evaluar el efecto de benralizumab en las medidas de calidad de vida comunicadas por el paciente en la semana 24 Toxicidad y tolerabilidad: la toxicidad y la tolerabilidad se evaluarán en términos de acontecimientos adversos, constantes vitales, exploración física y parámetros de laboratorio clínico en la semana 52 |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Depending on the endpoints/objective |
Dependiendo de los criterios de evaluación/objetivos |
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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 | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
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 | Yes |
E.6.13.1 | Other scope of the trial description |
Optional genetic research |
Investigación genética opcional |
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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) | Yes |
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 | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
Tto doble ciego seguido de 1 año al menos para iniciar estudio de extensión en abierto en semana 24 |
DB treatment followed by at least 1 year OLE starting at week 24 |
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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 | Yes |
E.8.2.3 | Other | No |
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
| 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 | 21 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Australia |
Brazil |
Canada |
China |
Japan |
Ukraine |
United States |
Vietnam |
France |
Germany |
Italy |
Netherlands |
Poland |
Spain |
Switzerland |
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E.8.7 | Trial has a data monitoring committee | Yes |
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 end of study is defined as the last expected visit/contact of the last patient undergoing the study. |
El fin del estudio se define como la última visita/contacto esperado del último paciente en el 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 | 3 |
E.8.9.1 | In the Member State concerned months | 11 |
E.8.9.1 | In the Member State concerned days | 7 |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 11 |