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Un Ensayo Clínico de Fase 1 de Candidatos a Vacuna contra el VHC Basada en Proteínas Adyuvadas (Ensayo de Vacuna contra el VHC)

24 de septiembre de 2026 actualizado por: University of Alberta

Un Ensayo Clínico de Fase 1 de Candidatos a Vacuna contra el VHC Basada en Proteínas con Adyuvante (Ensayo de Vacuna contra el VHC)

The purpose of this study is to investigate the safety and antibody (germ fighters) response of the experimental (investigational) vaccine against HCV when injected into the arm of healthy adults.

Descripción general del estudio

Estado

Aún no reclutando

Condiciones

Descripción detallada

The Hepatitis C Virus (HCV) continues to be a significant public health threat, infecting 58 million people worldwide and over 250,000 Canadians. The virus disproportionately affects marginalized populations. It is a bloodborne virus that affects the liver and is most commonly spread through unsafe injection practices, sexual practices that lead to blood exposures, and unsafe health care (i.e., transfusion of contaminated blood and blood products). If left untreated, these infections progress to chronic hepatitis, liver cirrhosis (liver failure) and potentially hepatocellular carcinoma (liver cancer) or death. Current treatments for HCV include expensive drug combinations that can cure HCV in most but do not prevent reinfection if there is another exposure. At this time, there are no vaccines available to prevent HCV and the diseases that it causes.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

27

Fase

  • Fase 1

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.

Estudio Contacto

  • Nombre: Kelly Kim, BSc, BA
  • Número de teléfono: 587-598-2336
  • Correo electrónico: hcv@ualberta.ca

Ubicaciones de estudio

    • Alberta
      • Edmonton, Alberta, Canadá, T6G 2B7
        • University of Alberta Hospital
        • Contacto:
          • Vanessa Meier-Stephenson, MD, PhD
    • Ontario
      • Ottawa, Ontario, Canadá, K1H 8L6
        • Ottawa Hospital - General Campus
        • Contacto:
          • Curtis Cooper, MD, MSc
      • Toronto, Ontario, Canadá, M5G 2C4
        • Toronto General Hospital - Toronto Centre for Liver Disease
        • Contacto:
          • Jordan Feld, MD, MSc

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

18 años a 45 años (Adulto)

Acepta Voluntarios Saludables

Sí

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  1. Able to understand the purpose and the procedures involved in this study and sign the informed consent form;
  2. Non-pregnant individuals, 18-45 years of age inclusive;
  3. Individuals must agree not to become pregnant during the trial. If they are capable of pregnancy and sexually active, they must use an effective method of birth control;
  4. Non-smoker and in good general health, as determined by medical screening evaluation, performed by PI, or delegated sub-investigator no greater than 4 weeks (28 days) before the first dose in the form of medical history, clinical laboratory tests and physical examination;
  5. Agrees to reside in the geographical area for next 12 months and not intending to travel outside of Canada for at least 14 days following each study vaccine administration;
  6. Agree not to participate in any other clinical trial during the trial;
  7. Agree not to donate blood for the duration of the trial;
  8. Agree to restrain from intensive physical exercise i.e., exercise that varies significantly from an everyday exercise routine, 3 days before and after (± 3 days) administration of each dose, including each interim visit for blood sample collection;
  9. Up to date on recommended seasonal vaccines (influenza and COVID-19) at the time of study enrolment.

Exclusion Criteria:

  1. Presence of Hepatitis C antibody (HCV Ab);
  2. Presence of significant acute infection requiring systemic antibiotic treatment within the 14 days prior to each product administration;
  3. Pregnant or breast feeding (all individuals physiologically capable of pregnancy will have a negative pregnancy test result prior to each study product administered);
  4. Past significant reaction following any previous vaccination;
  5. History of hypersensitivity to any vaccine component;
  6. Presence of acute infectious disease or fever (e.g., sub-lingual temperature 38.5°C) within the five days prior to study product administration;
  7. Presence of current or suspected serious chronic diseases such as cardiac or autoimmune disease (HIV or other immunodeficiencies), insulin dependent diabetes, progressive neurological disease, severe malnutrition, acute or progressive hepatic disease, acute or progressive renal disease, psoriasis, rheumatoid arthritis, asthma, epilepsy or obsessive-compulsive disorder, skin carcinoma excluding non-spreadable skin cancers such as basal cell and squamous cell carcinoma;
  8. Evidence and/or any history of leukaemia, lymphoma, or neoplasm;
  9. Presence or suspicion of impaired immune system function. Currently receiving or having within the past three years received immunosuppressive therapy, including systemic steroids, ACTH or inhaled steroids in dosages that are associated with hypothalamic-pituitary-adrenal axis suppression, such as 1mg/kg/day of prednisone or its equivalent or chronic use of inhaled high potency corticosteroids [budesonide 800 µg per day or fluticasone 750 µg];
  10. Received blood, blood products or a parenteral immunoglobulin preparation in the past 12 weeks;
  11. Evidence of bleeding diathesis or any condition that may be associated with a prolonged bleeding time;
  12. Known inherited genetic anomaly (known as cytogenic disorders) e.g., Down's syndrome;
  13. Evidence of any condition that, in the opinion of the clinical investigator, might interfere with the evaluation of the study objectives or pose excessive risks to participants;
  14. Clinically significant abnormal laboratory as assessed by the trial physician.

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
Experimental: AVIHepC1

Contains two components: (1) GMP-Grade E1E2 heterodimer envelope protein (4.5µg); and (2) GMP-Grade SLA-SE adjuvant.

Intramuscular injection administered at 0, 4, and 24 weeks.

Comparador de placebos: Normal Saline

0.9% sodium chloride

*Only applicable for double-blinded randomized component of the study. Intramuscular injection administered at 0, 4, and 24 weeks.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Adverse Events
Periodo de tiempo: 6 months after last dose of vaccine is administered

Safety is the primary outcome. Clinical symptoms and signs, standard laboratory parameters (hematological and biochemical), and ancillary data will be collected and assessed for safety monitoring throughout the study which will also be reviewed by the Data Safety Monitoring Board (DSMB) accordingly.

6 months after last dose of vaccine is administered

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Immunogenicity
Periodo de tiempo: 6 months after last dose of vaccine is administered

Antibody titres: Samples of sera and PBMCs will be collected from the participants prior to each injection and at the scheduled clinic visits. The titre of vaccine specific antibodies will be determined using ELISA. The presence of vaccine-specific antibodies in all participants in the study will be monitored.

6 months after last dose of vaccine is administered
Immunogenicity
Periodo de tiempo: 6 months after last dose of vaccine is administered

Assessment for pan-genotypic neutralizing antibodies in vitro: Sera will be tested for neutralization capacity via a panel of infectious cell-culture-propagated HCV genotypes.

6 months after last dose of vaccine is administered
Immunogenicity
Periodo de tiempo: 6 months after last dose of vaccine is administered

T cell responses: T cell responses generated by vaccinees pre- and post-vaccination will be measured by flow cytometry.

6 months after last dose of vaccine is administered

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Investigadores

  • Investigador principal: Michael Houghton, PhD, University of Alberta
  • Silla de estudio: Vanessa Meier-Stephenson, MD, PhD, University of Alberta
  • Investigador principal: Lorne Tyrrell, MD, PhD, University of Alberta
  • Investigador principal: Jordan Feld, MD, MSc, University of Toronto
  • Investigador principal: Curtis Cooper, MD, MSc, University of Ottawa

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 (Estimado)

15 de enero de 2027

Finalización primaria (Estimado)

1 de julio de 2027

Finalización del estudio (Estimado)

1 de enero de 2028

Fechas de registro del estudio

Enviado por primera vez

14 de noviembre de 2025

Primero enviado que cumplió con los criterios de control de calidad

14 de noviembre de 2025

Publicado por primera vez (Actual)

19 de noviembre de 2025

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

25 de septiembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

24 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Términos relacionados con este estudio

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

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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