Immunogenicity and Safety of Influenza A/H3N2 Vaccine in Patients With Rheumatologic Diseases
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 入组人数
- 300
- 试验地点
- 2
- 主要终点
- Number of participants with seroprotection and seroconversion after Influenza vaccine
研究概览
简要总结
Studies in the literature have shown reduced effectiveness of influenza A (H3N2) virus vaccine (20-40%) when compared to A (H1N1) and influenza B. This reduction in efficacy may partly result of the need to propagate A (H3N2) virus into egg components for the preparation of the vaccine. Other factors that may also contribute to the reduction of efficacy against A (H3N2) viruses include the high level of genetic diversity and the rate of rapid evolution of this particular virus subtype and the modification of the immune response to the vaccine secondary of prior infection or vaccination.
Vaccine efficacy studies are required to verify the immunogenicity of the H3N2 influenza vaccine in immunosuppressed patients with rheumatologic disease. In addition, it is relevant to evaluate the safety of the vaccine in this population as well as the possibility of reactivation of the rheumatologic disease itself. The objectives of this study are to evaluate the immunogenicity of the H3N2 component of the inactivated and fragmented influenza vaccine in patients with two systemic autoimmune rheumatic diseases (Systemic Lupus Erythematosus - Adult and Juvenile, Primary Sjögren's Syndrome).
详细描述
Studies in the literature have shown reduced effectiveness of influenza A (H3N2) virus vaccine (20-40%) when compared to A (H1N1) and influenza B. This reduction in efficacy may partly result of the need to propagate A (H3N2) virus into egg components for the preparation of the vaccine. Other factors that may also contribute to the reduction of efficacy against A (H3N2) viruses include the high level of genetic diversity and the rate of rapid evolution of this particular virus subtype and the modification of the immune response to the vaccine secondary of prior infection or vaccination.
Vaccine efficacy studies are required to verify the immunogenicity of the H3N2 influenza vaccine in immunosuppressed patients with rheumatologic disease. In addition, it is relevant to evaluate the safety of the vaccine in this population as well as the possibility of reactivation of the rheumatologic disease itself. The objectives of this study are to:
- Evaluate the immunogenicity of the H3N2 component of the inactivated and fragmented influenza vaccine (A / Michigan / 45/2015 (H1N1) pdm09-like virus, A / Singapore / INFIMH-16-0019 / 2016 (H3N2) -like virus; B / Phuket / 3073/2013-like virus] in patients with two systemic autoimmune rheumatic diseases (Systemic Lupus Erythematosus - Adult and Juvenile, Primary Sjögren's Syndrome).
- Assess the safety of immunization with the inactivated influenza vaccine [A / Michigan / 45/2015 (H1N1) pdm09-like virus, A / Singapore / INFIMH-16-0019 / 2016 (H3N2) -like virus; B / Phuket / 3073/2013-like virus] in these patients with systemic autoimmune rheumatic diseases.
- Evaluate the possible association between vaccinal immunogenicity with: demographic data, clinical and laboratorial activity of the disease, and treatment of patients with these rheumatic diseases.
Patients with diagnosis of adult and juvenile systemic lupus erythematosus (SLE and JSLE) (n=100) and Sjogren syndrome (SSp) (n=30) according to the classification criteria established for these diseases will be prospectively evaluated at the Hospital das Clínicas of the University of São Paulo (HC-FMUSP).
The control group will consist of 120 healthy individuals who will be recruited into the vaccination campaign paired for age and sex. The juvenile control group will be composed of 50 healthy children who will be recruited in the vaccination campaign paired for age and sex.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 9 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Adult and juvenile systemic lupus erythematosus (SLE) and juvenile SLE patients according to the ACR classification criteria aged ≥ 18 years for adults and aged ≥ 9 and <18 years for the juvenile group
- •Patients with primary Sjögren's Syndrome (SSp) (classification criteria of the European Study Group on Diagnostic Criteria for Sjögren's Syndrome) aged ≥ 18 years
排除标准
- •History of anaphylactic response to vaccine components or egg allergy
- •Moderate or severe acute febrile illness
- •Guillain-Barré syndrome, decompensated heart failure (class III or IV), demyelinating disease.
- •History of live virus vaccine up to 4 weeks before, virus vaccine inactivated up to 2 weeks prior, influenza vaccine up to 6 months prior to study.
- •History of having received blood products up to 6 months prior to the study.
- •Individuals who do not agree to participate in the study and / or whose parents do not agree to participate in the study.
- •Patients with severe conditions requiring hospitalization
研究组 & 干预措施
Patients with rheumatic diseases
Patients with diagnosis of adult and juvenile systemic lupus erythematosus (SLE and JSLE) and Sjogren syndrome (SSp)
干预措施: Inactivated and fragmented influenza vaccine (A / Michigan / 45/2015 (H1N1) pdm09-like virus, A / Singapore / INFIMH-16-0019 / 2016 (H3N2) -like virus; B / Phuket / 3073/2013-like virus) (Biological)
Healthy controls
Healthy children and adults
干预措施: Inactivated and fragmented influenza vaccine (A / Michigan / 45/2015 (H1N1) pdm09-like virus, A / Singapore / INFIMH-16-0019 / 2016 (H3N2) -like virus; B / Phuket / 3073/2013-like virus) (Biological)
结局指标
主要结局
Number of participants with seroprotection and seroconversion after Influenza vaccine
时间窗: 30 days
Immunogenicity (seroprotection and seroconversion) of the H3N2 component of the inactivated and fragmented influenza vaccine (A / Michigan / 45/2015 (H1N1) pdm09-like virus, A / Singapore / INFIMH-16-0019 / 2016 (H3N2) -like virus; B / Phuket / 3073/2013-like virus) will be evaluated by haemagglutination inhibition (HI) assay
次要结局
- Number of participants with vaccine-related adverse events as assessed by CTCAE v4.0(30 days)