Safety and Immunogenicity of the RSV-F Vaccine in Older Adults Previously Treated With the Same Vaccine or Placebo in the Prior Year.
25 de mayo de 2022 actualizado por: Novavax
A Phase II Randomized, Observer-Blind, Placebo-Controlled Study to Evaluate the Immunogenicity and Safety of a Respiratory Syncytial Virus (RSV) Recombinant F Nanoparticle Vaccine in Healthy Older Adult Subjects Previously Treated With the Same Vaccine, or Placebo, in the Prior Year; and to Estimate the Incidence Rate of RSV Disease and Vaccine Efficacy in Subjects Based on Their RSV F Vaccine Experience Over Two Consecutive Years.
This study will enroll subjects who received the RSV F vaccine or placebo in the earlier study (RSV-E-201, Year 1) and re-randomize them to receive either vaccine or placebo in a second season.
This design will permit evaluation of the safety and immunogenicity of revaccination in a second RSV season, and the safety and immunogenicity of revaccination over two years.
Descripción general del estudio
Estado
Terminado
Condiciones
Intervención / Tratamiento
Tipo de estudio
Intervencionista
Inscripción (Actual)
1330
Fase
- Fase 2
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Ubicaciones de estudio
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-
California
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Redding, California, Estados Unidos, 96001
- Nothern California Clinical Research
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Georgia
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Stockbridge, Georgia, Estados Unidos, 30281
- Clinical Research Atlanta
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Kansas
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Lenexa, Kansas, Estados Unidos, 66219
- Johnson County Clin-Trials
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Ohio
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Cleveland, Ohio, Estados Unidos, 44122
- Rapid Medical Research
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Tennessee
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Nashville, Tennessee, Estados Unidos, 37203
- Clinical Research Associates
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Texas
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Dallas, Texas, Estados Unidos, 75234
- Research Across America
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San Antonio, Texas, Estados Unidos, 78229
- Clinical Trials of Texas
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Utah
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West Jordan, Utah, Estados Unidos, 84088
- Advanced Clinical Research
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Washington
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Seattle, Washington, Estados Unidos, 98101
- Group Health Research Institute
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Wisconsin
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Wausau, Wisconsin, Estados Unidos, 54401
- Marshfield Clinical Research Foundation
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-
Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
60 años y mayores (Adulto, Adulto Mayor)
Acepta Voluntarios Saludables
No
Géneros elegibles para el estudio
Todos
Descripción
Inclusion Criteria:
Males and females ≥60 years of age who are veterans of the RSV-E-201 clinical trial and who are ambulatory and live in the community or in residential facilities which provide minimal assistance, such that the subject is primarily responsible for self-care and activities of daily living. Subjects may have one or more chronic medical diagnoses, but should be clinically stable as assessed by:
- Absence of changes in medical therapy within one month due to treatment failure or toxicity,
- Absence of medical events qualifying as SAEs within two months, and
- Absence of known, current, life-limiting diagnoses that, in the opinion of the investigator, render survival to trial completion unlikely.
- Willing and able (on both a physical and cognitive basis) to give informed consent prior to study enrollment.
- Able to comply with study requirements, including access to transportation for study visits. The investigator may use his/her discretion to assess potential ability and willingness to comply based on performance in the prior trial, RSV-E-201.
- Access to inbound and outbound communication by telephone with caregivers and study staff.
Exclusion Criteria:
- Participation in research involving investigational product (drug / biologic / device) within 45 days before planned date of first vaccination, with the exception of participation in the preceding study RSV-E-201.
- History of a serious reaction to any prior vaccination, or Guillain-Barré syndrome (GBS) within 6 weeks of any prior influenza immunization, or withdrawal from the preceding RSV-E-201 clinical trial due to an adverse event deemed test article-related or at the advice of the investigator.
- Receipt of any vaccine other than IIV in the 4 weeks preceding the study vaccination; or any RSV vaccine at any time unless administered in the preceding study, RSV-E-201.
- Any known or suspected immunosuppressive condition, acquired or congenital, as determined by history and/or physical examination.
- Chronic administration (defined as more than 14 continuous days) of immunosuppressants or other immune-modifying drugs within 6 months prior to the administration of the study vaccine. An immunosuppressant dose of glucocorticoid will be defined as a systemic dose ≥10mg of prednisone per day or equivalent. The use of topical, inhaled, and nasal glucocorticoids will be permitted.
- Administration of immunoglobulins and/or any blood products within the 3 months preceding the administration of the study vaccine or during the study.
- Acute disease at the time of enrollment (defined as the presence of a moderate or severe illness with or without fever, or an oral temperature ≥38.0°C on the planned day of vaccine administration).
- Known disturbance of coagulation. Potential subjects receiving aspirin, clopidogrel, prasugrel, dipyridamole, dabigatran, apixaban, rivaroxaban or warfarin under good control for cardiovascular prophylaxis or prophylaxis of thromboembolic disease or stroke in the setting of atrial fibrillation will NOT be excluded.
- Suspicion or recent history (within one year of planned vaccination) of alcohol or other substance abuse.
- Any condition that in the opinion of the investigator would pose a health risk to the subject if enrolled or could interfere with evaluation of the vaccine or interpretation of study results (including neurologic, cognitive, or psychiatric conditions deemed likely to impair the quality of study compliance or safety reporting).
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Prevención
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Triple
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Experimental: Treatment Group A
RSV-F Vaccine ( 0.5mL Injection)
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Comparador de placebos: Tratamiento Grupo B
Placebo de tampón de fosfato (inyección de 0,5 ml)
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Serum IgG antibody concentrations as ELISA units (EUs) specific for the F protein antigen.
Periodo de tiempo: Day 0 to Day 364
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Derived/calculated endpoints based on these data will include:
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Day 0 to Day 364
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Numbers and percentages of subjects with solicited local and systemic AEs
Periodo de tiempo: Day 0 to Day 364
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Solicited local and systemic AEs over the seven days post-injection; and all adverse events, solicited and unsolicited, over 56 days post-dosing (Year 2).
In addition, MAEs, SAEs, and SNMCs will be collected for 1 year (approximately 364 days) post-dosing
|
Day 0 to Day 364
|
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Palivizumab-competitive antibody (PCA) expressed as µg/mL as detected in a competitive ELISA
Periodo de tiempo: Day 0 to Day 182
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Summarized by:
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Day 0 to Day 182
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Neutralizing antibody titer to at least one RSV/A and one RSV/B strain.
Periodo de tiempo: Day 0 to Day 182
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Summarized by:
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Day 0 to Day 182
|
Otras medidas de resultado
Medida de resultado |
Periodo de tiempo |
|---|---|
|
Number and percentages of subjects fulfilling the definitions of RSV-associated respiratory disease and/or RSV-lower respiratory tract disease in various treatment groups.
Periodo de tiempo: Day 0 to Day 182
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Day 0 to Day 182
|
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Number and percentages of subjects with respiratory illnesses for which a non-RSV viral respiratory pathogen (with or without concurrent RSV infection) is identified by RT-PCR.
Periodo de tiempo: Day 0 to Day 182
|
Day 0 to Day 182
|
Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio
1 de octubre de 2015
Finalización primaria (Actual)
1 de noviembre de 2016
Finalización del estudio (Actual)
1 de noviembre de 2016
Fechas de registro del estudio
Enviado por primera vez
22 de octubre de 2015
Primero enviado que cumplió con los criterios de control de calidad
29 de octubre de 2015
Publicado por primera vez (Estimar)
30 de octubre de 2015
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
27 de mayo de 2022
Última actualización enviada que cumplió con los criterios de control de calidad
25 de mayo de 2022
Última verificación
1 de mayo de 2022
Más información
Términos relacionados con este estudio
Otros números de identificación del estudio
- RSV-E-202
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
No
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
No
producto fabricado y exportado desde los EE. UU.
No
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