A PHASE 2, RANDOMIZED, CONTROLLED, OBSERVER-BLINDED STUDY CONDUCTED TO DESCRIBE THE IMMUNOGENICITY, SAFETY, AND TOLERABILITY OF A NEISSERIA MENINGITIDIS SEROGROUP B BIVALENT RECOMBINANT LIPOPROTEIN 2086 VACCINE (BIVALENT RLP2086) WHEN ADMINISTERED TO HEALTHY TODDLERS AGED 12 TO <18 MONTHS OR 18 TO <24 MONTHS, AND THE SAFETY AND IMMUNOGENICITY OF A BOOSTER DOSE OF BIVALENT RLP2086
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 发起方
- Pfizer
- 入组人数
- 396
- 试验地点
- 50
- 主要终点
- Percentage of Participants Reporting Pre-specified Local Reactions Within 7 Days After Vaccination 3
研究概览
简要总结
The purpose of this study is to investigate the immunogenicity, safety and tolerability of a new vaccine that might prevent meningococcal B disease. The study will be conducted in healthy toddlers aged between 12 and 24 months.
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
- Triple (Participant, Care Provider, Investigator)
入排标准
- 年龄范围
- 12 Months 至 24 Months（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Male or female subject aged 12 to <15 months or 18 to <24 months during sentinel-cohort enrollment, Or,12 to <24 months during expanded-cohort enrollment.
- •Subjects must have received all vaccinations in the relevant National Immunization Program (NIP) for their age group.
- •Subject is determined to be in good health by medical history, physical examination, and judgment of the investigator.
排除标准
- •Previous vaccination with any meningococcal serogroup B vaccine.
- •Previous vaccination with HAV vaccine, or requirement to receive nonstudy HAV vaccine during Stage 1 of the study.
- •Contraindication to vaccination with any HAV vaccine or known latex allergy.
- •A previous anaphylactic reaction to any vaccine or vaccine-related component.
- •Bleeding diathesis or condition associated with prolonged bleeding time that would contraindicate intramuscular injection.
- •A known or suspected disorder of the immune system that would prevent an immune response to the vaccine, such as subjects with congenital or acquired defects in B-cell function or those receiving systemic immunosuppressive therapy. Subjects with terminal complement deficiency may be included.
- •History of microbiologically proven disease caused by N meningitidis or Neisseria gonorrhoeae.
- •Significant neurologic disorder or history of seizure (excluding simple febrile seizure).
- •Receipt of any blood products, including immunoglobulin, within 6 months before the first study vaccination until the end of Stage
- •Current chronic use of systemic antibiotics.
- •Received any investigational drugs, vaccines or devices within 28 days before administration of the first study vaccination and/or during study participation.
- •Any neuroinflammatory or autoimmune condition, including but not limited to transverse myelitis, uveitis, optic neuritis, and multiple sclerosis.
结局指标
主要结局
Percentage of Participants Reporting Pre-specified Local Reactions Within 7 Days After Vaccination 3
时间窗: within 7 Days after Vaccination 3
Local reactions included tenderness at injection site, swelling and redness collected by using an e-diary. Tenderness was graded as: mild (hurted if gently touched), moderate (hurted if gently touched with crying) and severe (caused limitation of limb movement). Redness and swelling were graded as: mild (0.5-2.0 cm), moderate (2.5 to 7.0 cm) and severe (\>7.0 cm).
Percentage of Participants Reporting Pre-specified Local Reactions Within 7 Days After Vaccination 2
时间窗: within 7 Days after Vaccination 2
Local reactions included tenderness at injection site, swelling and redness collected by using an e-diary. Tenderness was graded as: mild (hurted if gently touched), moderate (hurted if gently touched with crying) and severe (caused limitation of limb movement). Redness and swelling were graded as: mild (0.5-2.0 cm), moderate (2.5 to 7.0 cm) and severe (\>7.0 cm).
Percentage of Participants With at Least 1 Adverse Event (AE), Serious Adverse Event (SAE), Medically Attended Adverse Event (MAE), Newly Diagnosed Chronic Medical Condition (NDCMC) and Immediate Adverse Event (IAE) Within 30 Days After Vaccination 1
时间窗: within 30 Days after Vaccination 1
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly; lack of efficacy in an approved indication; important medical event. A MAE was defined as a non-serious AE that resulted in an evaluation at a medical facility. An NDCMC was defined as a disease or medical condition that was not identified prior to study start and was expected to be persistent or otherwise long-lasting in its effects. Immediate AE was defined as AEs occurring within the first 30 minutes after investigational product administration.
Percentage of Participants With at Least 1 Serious Adverse Event (SAE), Medically Attended Adverse Event (MAE) and Newly Diagnosed Chronic Medical Condition (NDCMC) During the Follow up Phase
时间窗: From 1 month after Vaccination 3 up to 6 months after Vaccination 3
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly; lack of efficacy in an approved indication; important medical event. A MAE was defined as a non-serious AE that resulted in an evaluation at a medical facility. An NDCMC was defined as a disease or medical condition that was not identified prior to study start and was expected to be persistent or otherwise long-lasting in its effects.
Percentage of Participants With Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= Lower Limit of Quantitation (LLOQ) for Each of the 4 Primary Neisseria Meningitidis Serogroup B (MnB) Test Strains 1 Month After Vaccination 3
时间窗: 1 month after Vaccination 3
Percentage of participants achieving hSBA titer \>= LLOQ were computed along with corresponding 2-sided 95 percent (%) confidence interval (CIs). LLOQ was 1:16 for PMB80 (A22) and 1:8 for PMB2001 (A56), PMB2948 (B24) and PMB2707 (B44).
Percentage of Participants Reporting Pre-specified Local Reactions Within 7 Days After Vaccination 1
时间窗: within 7 Days after Vaccination 1
Local reactions included tenderness at injection site, swelling and redness collected by using an electronic diary (e-diary). Tenderness was graded as: mild (hurted if gently touched), moderate (hurted if gently touched with crying) and severe (caused limitation of limb movement). Redness and swelling were graded as: mild (0.5-2.0 centimeter \[cm\]), moderate (2.5 to 7.0 cm) and severe (\>7.0 cm).
Percentage of Participants Reporting Systemic Events and Antipyretic Use Within 7 Days After Vaccination 1
时间窗: within 7 Days after Vaccination 1
Systemic reactions included fever, irritability, drowsiness, loss of or decreased appetite and were recorded by using an e-diary. Fever was graded as 38.0 to 38.4 degree Celsius (C), 38.5 to 38.9 degree C, 39.0 to 39.4 degree C, \>39.5 to 40.0 degree C and \>40.0 degree C. Irritability was graded as mild (easily consolable), moderate (requiring increased attention) and severe (inconsolable). Drowsiness was graded as mild (Increased or prolonged sleeping bouts), moderate (slightly subdued interfering with daily activity) and severe (disabling not interested in usual daily activity). Loss of or decreased appetite was graded as mild (decreased interest in eating), moderate (decreased oral intake) and severe (refusal to feed).
Percentage of Participants With at Least 1 Adverse Event (AE), Serious Adverse Event (SAE), Medically Attended Adverse Event (MAE), Newly Diagnosed Chronic Medical Condition (NDCMC) and Immediate Adverse Event (IAE) Within 30 Days After Vaccination 2
时间窗: within 30 Days after Vaccination 2
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly; lack of efficacy in an approved indication; important medical event. A MAE was defined as a non-serious AE that resulted in an evaluation at a medical facility. An NDCMC was defined as a disease or medical condition that was not identified prior to study start and was expected to be persistent or otherwise long-lasting in its effects. Immediate AE was defined as AEs occurring within the first 30 minutes after investigational product administration.
Percentage of Participants With at Least 1 Adverse Event (AE), Serious Adverse Event (SAE), Medically Attended Adverse Event (MAE), Newly Diagnosed Chronic Medical Condition (NDCMC) and Immediate Adverse Event (IAE) Within 30 Days After Vaccination 3
时间窗: within 30 Days after Vaccination 3
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly; lack of efficacy in an approved indication; important medical event. A MAE was defined as a non-serious AE that resulted in an evaluation at a medical facility. An NDCMC was defined as a disease or medical condition that was not identified prior to study start and was expected to be persistent or otherwise long-lasting in its effects. Immediate AE was defined as AEs occurring within the first 30 minutes after investigational product administration.
Percentage of Participants Reporting Systemic Events and Antipyretic Use Within 7 Days After Vaccination 3
时间窗: within 7 Days after Vaccination 3
Systemic reactions included fever, irritability, drowsiness, loss of or decreased appetite and were recorded by using an e-diary. Fever was graded as 38.0 to 38.4 degree C, 38.5 to 38.9 degree C, 39.0 to 39.4 degree C, \>39.5 to 40.0 degree C and \>40.0 degree C. Irritability was graded as mild (easily consolable), moderate (requiring increased attention) and severe (inconsolable). Drowsiness was graded as mild (Increased or prolonged sleeping bouts), moderate (slightly subdued interfering with daily activity) and severe (disabling not interested in usual daily activity). Loss of or decreased appetite was graded as mild (decreased interest in eating), moderate (decreased oral intake) and severe (refusal to feed).
Percentage of Participants With at Least 1 Adverse Event (AE), Serious Adverse Event (SAE), Medically Attended Adverse Event (MAE) and Newly Diagnosed Chronic Medical Condition (NDCMC) Within 30 Days After Any Vaccination
时间窗: within 30 Days after any Vaccination
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly; lack of efficacy in an approved indication; important medical event. A MAE was defined as a non-serious AE that resulted in an evaluation at a medical facility. An NDCMC was defined as a disease or medical condition that was not identified prior to study start and was expected to be persistent or otherwise long-lasting in its effects.
Percentage of Participants With at Least 1 Adverse Event (AE), Serious Adverse Event (SAE), Medically Attended Adverse Event (MAE) and Newly Diagnosed Chronic Medical Condition (NDCMC) During the Vaccination Phase
时间窗: From the Vaccination 1 up to 1 month after Vaccination 3
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly; lack of efficacy in an approved indication; important medical event. A MAE was defined as a non-serious AE that resulted in an evaluation at a medical facility. An NDCMC was defined as a disease or medical condition that was not identified prior to study start and was expected to be persistent or otherwise long-lasting in its effects.
Percentage of Participants Reporting Systemic Events and Antipyretic Use Within 7 Days After Vaccination 2
时间窗: within 7 Days after Vaccination 2
Systemic reactions included fever, irritability, drowsiness, loss of or decreased appetite and were recorded by using an e-diary. Fever was graded as 38.0 to 38.4 degree C, 38.5 to 38.9 degree C, 39.0 to 39.4 degree C, \>39.5 to 40.0 degree C and \>40.0 degree C. Irritability was graded as mild (easily consolable), moderate (requiring increased attention) and severe (inconsolable). Drowsiness was graded as mild (Increased or prolonged sleeping bouts), moderate (slightly subdued interfering with daily activity) and severe (disabling not interested in usual daily activity). Loss of or decreased appetite was graded as mild (decreased interest in eating), moderate (decreased oral intake) and severe (refusal to feed).
Percentage of Participants With at Least 1 Serious Adverse Event (SAE), Medically Attended Adverse Event (MAE) and Newly Diagnosed Chronic Medical Condition (NDCMC) From Vaccination 1 up to 6 Months After Vaccination 3
时间窗: From Vaccination 1 up to 6 months after Vaccination 3
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly; lack of efficacy in an approved indication; important medical event. A MAE was defined as a non-serious AE that resulted in an evaluation at a medical facility. An NDCMC was defined as a disease or medical condition that was not identified prior to study start and was expected to be persistent or otherwise long-lasting in its effects.
次要结局
- Percentage of Participants With hSBA Titer >= LLOQ for Each of the 4 Primary MnB Test Strains 1 Month After Vaccination 2(1 month (Mon) after Vaccination (Vac) 2)
- Percentage of Participants With at Least 1 Adverse Event (AE) From Booster Vaccination to 1 Month After Booster Vaccination(Booster vaccination up to 1 month after booster vaccination)
- Percentage of Participants With Serum Bactericidal Assay Using hSBA Titers >=1:4, >=1:8, >=1:16, >=1:32, >=1:64 and >=1:128 for Each of the 4 Primary Test Strains(Before Vaccination 1 (T1), 1 month after Vaccination 2 (T2), 1 month after Vaccination 3 (T3), 6 months after Vaccination 3 (T4), 12 months after Vaccination 3 (T5) and 24 months after Vaccination 3 (T6))
- Percentage of Participants With hSBA Titer Between 12 Months to Less Than (<) 24 Months >= LLOQ for Each of the 4 Primary MnB Test Strains at 1, 6, 12, and 24 Months After Vaccination 3(1, 6, 12, 24 months after Vaccination 3)
- Percentage of Participants Reporting Pre-specified Local Reactions Within 7 Days After Booster Vaccination(Within 7 days after booster vaccination)
- Serum Bactericidal Assay Using Human Complement (hSBA) Geometric Mean Titers (GMTs) for Each of the 4 MnB Primary Test Strains at Before Booster Vaccination and 1 Month After Booster Vaccination(Before booster vaccination and 1 month after booster vaccination)
- Percentage of Participants Reporting Systemic Events and Antipyretic Use Within 7 Days After Booster Vaccination(Within 7 days after booster vaccination)
- Serum Bactericidal Assay Using Human Complement (hSBA) Geometric Mean Titers (GMTs) for Each of the 4 Primary Test Strains(Before Vaccination 1 (T1), 1 month after Vaccination 2 (T2), 1 month after Vaccination 3 (T3), 6 months after Vaccination 3 (T4), 12 months after Vaccination 3 (T5) and 24 months after Vaccination 3 (T6))
- Percentage of Participants With Immediate Adverse Event (IAE) After Booster Vaccination(Within 30 minutes after booster vaccination)
- Percentage of Participants With SAE, MAE, NDCMC From Booster Vaccination to 1 Month After Booster Vaccination, 1 Month After Booster Vaccination to 6 Months After Booster Vaccination and Booster Vaccination Through 6 Months After Booster Vaccination(Booster vaccination to 1 month after booster vaccination (T1), 1 month after booster vaccination to 6 months after booster vaccination (T2) and booster vaccination through 6 months after booster vaccination (T3))
- Percentage of Participants With hSBA Titer >=LLOQ >=1:4, >=1:8, >=1:16, >=1:32, >=1:64 and >=1:128 for Each of the 4 Primary Test Strains Before Booster Vaccination, and 1 Month After Booster Vaccination(Before booster vaccination and 1 month after booster vaccination)