Um Ensaio Clínico de Fase 1 de Candidatos a Vacina Baseada em Proteína Adjuvada contra o VHC (Ensaio de Vacina contra o VHC)
Um Ensaio Clínico de Fase 1 de Candidatos a Vacina contra o VHC Baseada em Proteína com Adjuvante (Ensaio da Vacina contra o 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.
Visão geral do estudo
Status
Status
Condições
Condições
Intervenção / Tratamento
Intervenção / Tratamento
Descrição detalhada
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 estudo
Tipo de estudo
Inscrição (Estimado)
Inscrição
Estágio
Estágio
- Fase 1
Contactos e Locais
Contato de estudo
Contato de estudo
- Nome: Kelly Kim, BSc, BA
- Número de telefone: 587-598-2336
- E-mail: hcv@ualberta.ca
Locais de estudo
-
-
Alberta
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Edmonton, Alberta, Canadá, T6G 2B7
- University of Alberta Hospital
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Contato:
- Vanessa Meier-Stephenson, MD, PhD
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Ontario
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Ottawa, Ontario, Canadá, K1H 8L6
- Ottawa Hospital - General Campus
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Contato:
- Curtis Cooper, MD, MSc
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Toronto, Ontario, Canadá, M5G 2C4
- Toronto General Hospital - Toronto Centre for Liver Disease
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Contato:
- Jordan Feld, MD, MSc
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-
Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Able to understand the purpose and the procedures involved in this study and sign the informed consent form;
- Non-pregnant individuals, 18-45 years of age inclusive;
- 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;
- 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;
- 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;
- Agree not to participate in any other clinical trial during the trial;
- Agree not to donate blood for the duration of the trial;
- 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;
- Up to date on recommended seasonal vaccines (influenza and COVID-19) at the time of study enrolment.
Exclusion Criteria:
- Presence of Hepatitis C antibody (HCV Ab);
- Presence of significant acute infection requiring systemic antibiotic treatment within the 14 days prior to each product administration;
- Pregnant or breast feeding (all individuals physiologically capable of pregnancy will have a negative pregnancy test result prior to each study product administered);
- Past significant reaction following any previous vaccination;
- History of hypersensitivity to any vaccine component;
- Presence of acute infectious disease or fever (e.g., sub-lingual temperature 38.5°C) within the five days prior to study product administration;
- 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;
- Evidence and/or any history of leukaemia, lymphoma, or neoplasm;
- 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];
- Received blood, blood products or a parenteral immunoglobulin preparation in the past 12 weeks;
- Evidence of bleeding diathesis or any condition that may be associated with a prolonged bleeding time;
- Known inherited genetic anomaly (known as cytogenic disorders) e.g., Down's syndrome;
- 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;
- Clinically significant abnormal laboratory as assessed by the trial physician.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Prevenção
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Triplo
Número de braços
Armas e Intervenções
Grupo de Participantes / BraçoGrupo de Participantes / Braço |
Intervenção / TratamentoIntervenção / Tratamento |
|---|---|
|
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 Placebo: 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. |
O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Adverse Events
Prazo: 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 resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Immunogenicity
Prazo: 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
Prazo: 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
Prazo: 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
Patrocinador
Patrocinador
Investigadores
Investigadores
- Investigador principal: Michael Houghton, PhD, University of Alberta
- Cadeira de estudo: 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
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Estimado)
Início do estudo
Conclusão Primária (Estimado)
Conclusão Primária
Conclusão do estudo (Estimado)
Conclusão do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
- Infecções transmitidas pelo sangue
- Infecções
- Infecções por vírus de RNA
- Doenças Virais
- Doenças do aparelho digestivo
- Doenças do Fígado
- Hepatite, Viral, Humana
- Doenças Transmissíveis
- Infecções por Flaviviridae
- Hepatite
- Hepatite C
- Preparações farmacêuticas
- Soluções cristalóides
- Soluções isotônicas
- Soluções
- Solução salina
Outros números de identificação do estudo
Outros números de identificação do estudo
- Pro00147152
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