A Phase III, Randomized, Observer-Blind, Placebo-Controlled, Multicenter Study to Assess Clinical Efficacy of a Cell-Derived Subunit Influenza Vaccine and an Egg-Derived Subunit Influenza Vaccine in the 2007-2008 Influenza Season in Healthy Adult Subjects
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 发起方
- 入组人数
- 11,404
- 试验地点
- 56
- 主要终点
- Number of Subjects With Culture-Confirmed Influenza Illness Caused by Vaccine-like Strains
研究概览
简要总结
The present study will evaluate clinical efficacy, safety, tolerability and immunogenicity of both Novartis Vaccines' cell-derived influenza vaccine and egg-derived influenza vaccine in healthy adults 18 to 49 years of age.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 18 Years 至 49 Years(Adult)
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •subjects 18 to 49 years of age;
- •in good health as determined by medical history and physical examination;
- •able and willing to provide written informed consent prior to any study procedure;
- •able to comply with all study procedures, including availability and willingness to be actively followed throughout the ensuing influenza season with weekly telephone calls and to comply with the need for prompt collection of nasal and throat specimens in the event of influenza symptoms.
排除标准
- •history of anaphylaxis or serious reaction after administration of any vaccine, or hypersensitivity to eggs, egg protein, chicken feathers, influenza viral protein, neomycin, kanamycin, or any other vaccine component, chemically related substance, or component of the potential packaging materials;
- •any health condition for which the inactivated vaccine is recommended by the Advisory Committee on Immunization Practices (ACIP) including chronic diseases of the pulmonary or cardiovascular systems (including asthma), chronic metabolic diseases (including diabetes), renal dysfunction, hemoglobinopathies, immune deficiency disease (including HIV infection) or on-going immunosuppressive therapy;
- •employment in professions prone to influenza transmission to or from high-risk populations (this exclusion specifically includes nurses, physicians, all other healthcare workers with direct patient contact; and police, fire, and rescue personnel); or living in the same household as an immunocompromised person;
- •history of Guillain-Barré syndrome;
- •bleeding diathesis;
- •receipt of another investigational agent within 90 days prior to enrollment in the study or before completion of the safety follow-up period in another study, whichever is longer, and unwilling to refuse participation in another clinical study through the end of the study;
- •receipt of another vaccine within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) prior to Visit 1;
- •laboratory-confirmed influenza disease within 6 months prior to Visit 1;
- •receipt of an influenza vaccine within 6 months prior to Visit 1 or plans to receive influenza vaccine outside of this study;
- •experienced a temperature (≥100.0°F / ≥37.8°C) and/or any acute illness within 3 days prior to study vaccination;
- •pregnant or breast-feeding female;
- •if female of childbearing potential and sexually active, has not used any of the birth control methods detailed in the section entitled "Females of Childbearing Potential" for at least 2 months prior to study entry;
- •if female of childbearing potential and sexually active, refusal to use a reliable contraceptive method as detailed in the section entitled "Females of Childbearing Potential" during the first 3 weeks after vaccination;
- •research staff directly involved with the clinical study or family members or household members of research staff. Research staff are individuals with direct or indirect contact with study subjects, or study site personnel who have access to any study documents containing subject information. This would include receptionists, persons scheduling appointments or making screening calls, regulatory specialists, laboratory technicians, etc.;
- •any condition which, in the opinion of the investigator, might interfere with the evaluation of the study objectives or with the safety of the study subject.
研究组 & 干预措施
CCI
Subjects received one dose of cell culture-derived influenza vaccine.
干预措施: Cell culture-derived influenza vaccine (Biological)
IVV
Subjects received one dose of the trivalent egg-derived influenza vaccine.
干预措施: Egg-derived influenza virus vaccine (Biological)
Placebo
Subjects received one dose of phosphate buffered solution (PBS).
干预措施: Placebo (Biological)
结局指标
主要结局
Number of Subjects With Culture-Confirmed Influenza Illness Caused by Vaccine-like Strains
时间窗: 6 Months
The vaccine efficacy of CCI and IVV vaccines was estimated relative to Placebo group as the number of subjects prevented against virus-confirmed symptomatic influenza illness caused by each of three vaccine-like virus strains.
次要结局
- Percentages of Subjects Achieving Seroconversion After One Vaccination of Either Cell-culture Derived or Egg-derived Influenza Vaccine or Placebo(Three weeks after vaccination (day 22))
- Percentages of Subjects Who Achieved HI Titers ≥40 After One Vaccination of Either Cell-culture Derived or Egg-derived Influenza Vaccine or Placebo(Before vaccination (day 1) and three weeks after vaccination (day 22))
- Number of Subjects With Culture-confirmed Influenza Illness Caused by Non-Vaccine Like Strains(6 Months)
- Number of Medical Visits (Inpatient and Outpatient), Subset of Subjects With Virus-Confirmed-Influenza(6 Months)
- Influenza-Associated Days in Bed, Subset of Subjects With Virus-Confirmed- Influenza(6 Months)
- Number of Subjects With Influenza Caused by Vaccine-like and Non-vaccine-like Strains(6 Months)
- Number Of Medical Visits (Inpatient and Outpatient) Due to Influenza Illness or Symptoms of Influenza, All Subjects(6 Months)
- Influenza-Associated Days in Bed, All Subjects(6 Months)
- Number of Days of Usual Activity (i.e. Job, School,Household/Family/Community Activities) Lost Due to Influenza Disease, All Subjects(6 Months)
- Number of Days of Usual Activity (i.e. Job, School,Household/Family/Community Activities) Lost, Subset of Subjects With Virus-Confirmed-Influenza(6 Months)
- Number of Subjects Reported Solicited Local and Systemic Reactions up to 7 Days After Vaccination(Up to 7 days post vaccination)
