Hutterite Influenza Prevention Study
2011年9月27日 更新者：Mark Loeb、McMaster University
Does Vaccinating Health Hutterite Children Against Influenza Prevent Influenza in Other Hutterite Colony Members: A Randomized Cluster Trial
The goal of this randomized clinical trial is to determine whether immunizing children in Hutterite colonies with inactivated influenza vaccine can prevent influenza and its complications in other colony members.
Furthermore, the study will assess the indirect benefit to Hutterites at high risk of complications.
The study is a blinded, cluster randomized controlled trial among Hutterite colonies to test the hypothesis that high immunization rates (>70%) of healthy children with inactivated influenza vaccine reduces transmission of influenza to other colony members.
Randomization of these homogeneous, moderately sized colonies where there is regular spread facilitated by a communal lifestyle, but limited re-introduction because of relative isolation from outside community, represents a unique opportunity to test the hypothesis of indirect benefit under close to ideal conditions.
The primary outcome will be laboratory-confirmed influenza.
Secondary outcomes include influenza-like illness, otitis media, physician visits, antimicrobial prescriptions, absenteeism, lower respiratory tract infection, hospitalizations, and death.
研究概览
详细说明
Colonies will be enrolled in September 2008.
Healthy Hutterite Children will be vaccinated in October, in each year of the study (2008, 2009, & 2010)
Influenza Surveillance phase will begin around December-January of each year.
- All study outcomes will be collected during the Surveillance phase of the study from Dec to June for 3 years.
- Outcomes will be collected when research nurses visit the colonies. A research nurse will visit enrolled colonies twice a week during the surveillance phase and review study diaries and obtain swabs from participants with symptoms of influenza.
研究类型
介入性
注册 (实际的)
4771
阶段
- 第四阶段
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
- 孩子
- 成人
- 年长者
接受健康志愿者
是的
有资格学习的性别
全部
描述
Group A:
Inclusion Criteria:
- Hutterites other than the healthy children who will be immunized. Although this category as a whole will be used to assess indirect benefit of the vaccine in the main analysis, Hutterites at high risk for influenza complications within this category will be assessed in a separate analysis. These are defined as anyone in one or more of the following groups:
- individuals aged ≥ 65 years
- children 23 months of age or less
anyone with ≥ 1 of the following conditions severe enough to require regular medical follow-up or hospital care:
- chronic cardiac or pulmonary disorders (including bronchopulmonary dysplasia, cystic fibrosis, and asthma)
- diabetes mellitus and other metabolic diseases
- cancer
- immunodeficiency
- immunosuppression (due to underlying disease and/or therapy)
- renal disease
- anemia
- hemoglobinopathy
- any condition that can compromise respiratory function or the handling of respiratory secretions or that can increase the risk of aspiration.
Exclusion Criteria:
- There are no exclusion criteria for this category of participants.
Group B:
Inclusion Criteria:
- Healthy children aged 36 months to 15 years who will be immunized as part of the intervention.
Exclusion Criteria:
- Anaphylactic reaction to a previous dose of influenza vaccine
- Anaphylactic reaction to hepatitis A vaccine
- Anaphylactic reaction to neomycin
- Known IgE-mediated hypersensitivity to eggs manifested as hives
- Swelling of the mouth and throat, difficulty in breathing, hypotension, or shock
- Guillain-Barré syndrome within eight weeks of a previous influenza vaccine.
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：预防
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：三倍
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：Influenza
Inactivated Influenza vaccination
|
Influenza vaccination- 0.5 mL.
Children under 9 who have never received a influenza vaccine will receive a 2nd dose (0.5 mL) 4 weeks later.
其他名称：
|
|
安慰剂比较：Control
Hepatitis A vaccine
|
Hepatitis vaccination- 0.5 mL.
Children under 9 who have never received a influenza vaccine will receive a 2nd dose ( saline- 0.5 mL) 4 weeks later.
其他名称：
|
研究衡量的是什么？
主要结果指标
结果测量 |
大体时间 |
|---|---|
|
laboratory-confirmed influenza infection
大体时间：Dec to June each year for 3 years
|
Dec to June each year for 3 years
|
次要结果测量
结果测量 |
大体时间 |
|---|---|
|
Influenza like illness
大体时间：Dec to June each year for 3 years
|
Dec to June each year for 3 years
|
|
Physician diagnosed otitis media
大体时间：Dec to June each year for 3 years
|
Dec to June each year for 3 years
|
|
School or work related absenteeism
大体时间：Dec to June each year for 3 years
|
Dec to June each year for 3 years
|
|
Physician visits for respiratory illness
大体时间：Dec to June each year for 3 years
|
Dec to June each year for 3 years
|
|
Lower respiratory infection or pneumonia
大体时间：Dec to June each year for 3 years
|
Dec to June each year for 3 years
|
|
Hospitalizations for LRTI or pneumonia
大体时间：Dec to June each year for 3 years
|
Dec to June each year for 3 years
|
|
All cause hospitalizations
大体时间：Dec to June each year for 3 years
|
Dec to June each year for 3 years
|
|
Deaths due to LRTI or pneumonia
大体时间：Dec to June each year for 3 years
|
Dec to June each year for 3 years
|
|
All-cause deaths
大体时间：Dec to June each year for 3 years
|
Dec to June each year for 3 years
|
合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Mark B Loeb, MD、McMaster University
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
一般刊物
- Wang B, Russell ML, Moss L, Fonseca K, Earn DJ, Aoki F, Horsman G, Caeseele PV, Chokani K, Vooght M, Babiuk L, Webby R, Walter SD, Loeb M. Effect of Influenza Vaccination of Children on Infection Rate in Hutterite Communities: Follow-Up Study of a Randomized Trial. PLoS One. 2016 Dec 15;11(12):e0167281. doi: 10.1371/journal.pone.0167281. eCollection 2016.
- Loeb M, Russell ML, Fonseca K, Webby R, Walter SD. Comparison of multiple estimates of efficacy for influenza vaccine. Vaccine. 2011 Dec 9;30(1):1-4. doi: 10.1016/j.vaccine.2011.10.069. Epub 2011 Nov 7.
- Loeb M, Russell ML, Moss L, Fonseca K, Fox J, Earn DJ, Aoki F, Horsman G, Van Caeseele P, Chokani K, Vooght M, Babiuk L, Webby R, Walter SD. Effect of influenza vaccination of children on infection rates in Hutterite communities: a randomized trial. JAMA. 2010 Mar 10;303(10):943-50. doi: 10.1001/jama.2010.250.
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2008年9月1日
初级完成 (实际的)
2011年5月1日
研究完成 (实际的)
2011年7月1日
研究注册日期
首次提交
2009年1月22日
首先提交符合 QC 标准的
2009年4月6日
首次发布 (估计)
2009年4月7日
研究记录更新
最后更新发布 (估计)
2011年9月28日
上次提交的符合 QC 标准的更新
2011年9月27日
最后验证
2011年9月1日
更多信息
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