Immunogenicity and Safety of an Investigational Quadrivalent Meningococcal Conjugate Vaccine in Healthy Adults, Adolescents, Children, and Toddlers in India and Healthy Adolescents and Children in the Republic of South Africa
Overview
- Phase
- Phase 3
- Intervention
- Meningococcal polysaccharide (serogroups A,C,Y and W-135) diphtheria toxoid conjugate vaccine
- Conditions
- Not specified
- Sponsor
- Sanofi Pasteur, a Sanofi Company
- Enrollment
- 1328
- Locations
- 17
- Primary Endpoint
- Group 5 + 7 and Group 6 + 8: Percentage of Participants Who Achieved Antibody Titers ≥1:8 Against Meningococcal Serogroups A, C, Y, and W
- Status
- Completed
- Last Updated
- last year
Overview
Brief Summary
This will be a Phase III, modified double-blind (open-label for toddlers in India), randomized, parallel-group, active-controlled, step-wise, multi-center study to compare and describe the immunogenicity and safety of MenACYW conjugate vaccine when administered as a single dose in healthy adults, adolescents, children, and toddlers in India and a modified double-blind, randomized, parallel-group, active-controlled, multi-center study to compare and describe the immunogenicity and safety of MenACYW conjugate vaccine when administered as a single dose in healthy adolescents and children in RSA.
Detailed Description
Study duration per participant is approximately 31 to 45 days
Investigators
Eligibility Criteria
Inclusion Criteria
- •Age in the defined range on the day of inclusion: For Adults: Aged ≥ 18 years on the day of inclusion For Children and Adolescents: Aged 2 to 17 years on the day of inclusion For Toddlers: Aged 12 to 23 months† on the day of inclusion
- •Z-score of ≥ -2 standard deviations (SD) on the Weight-for-height table of the World Health Organization (WHO) Child Growth Standards: For toddlers and children: Toddlers aged 12 to 23 months and Children aged 2 to 5 years had a Z-score of ≥ -2 SD on the Weight-for-height table of the WHO Child Growth Standards
- •Informed consent obtained For adults: Informed consent form has been signed and dated by the subject and by an independent witness, if required by local regulations For toddlers, children, and adolescents: Assent form has been signed and dated by the subject (for subjects 7 to 17 years of age), and informed consent form has been signed and dated by the parent(s) or legally acceptable representative and by an independent witness, if required by local regulations
- •Were able to attend all scheduled visits and to comply with all trial procedures For adults: Were able to attend all scheduled visits and to comply with all trial procedures For toddlers, children, and adolescents: Participants and parent / legally acceptable representative were able to attend all scheduled visits and to comply with all trial procedures
- •For Toddlers: All toddlers were due to receive an age-recommended RPV on D0
Exclusion Criteria
- •Participant was pregnant, or lactating, or of childbearing potential and was not using an effective method of contraception or abstinence from at least 4 weeks prior to vaccination until at least 4 weeks after vaccination. To be considered of non-childbearing potential, a female must be pre-menarche, or post-menopausal for at least 1 year, or surgically sterile
- •Participation at the time of study enrollment (or in the 4 weeks preceding the trial vaccination) or planned participation during the present trial period in another clinical trial investigating a vaccine, drug, medical device, or medical procedure
- •Receipt of any vaccine in the 4 weeks (28 days) preceding the IMP or planned receipt of any vaccine in the 4 weeks following vaccination except for oral poliovirus vaccine (OPV) in India, received during national immunization days. In India, OPV might have been received with a gap of at least 2 weeks before the IMP. This exception included monovalent and bivalent OPV.
- •Previous vaccination against meningococcal disease with either the IMP or another vaccine (i.e., mono- or polyvalent, polysaccharide, or conjugate meningococcal vaccine containing serogroups A, C, Y, or W; or meningococcal B serogroup containing vaccine)
- •Receipt of immune globulins, blood or blood-derived products in the past 3 months
- •Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months)
- •History of meningococcal infection, confirmed either clinically, serologically, or microbiologically
- •At high risk for meningococcal infection during the trial (specifically, but not limited to, subjects with persistent complement deficiency, with anatomic or functional asplenia, or subjects traveling to countries with high endemic or epidemic disease)
- •Known systemic hypersensitivity to latex or to any of the vaccine components, or history of a life-threatening reaction to the vaccine(s) used in the trial or to a vaccine containing any of the same substances
- •Verbal report of thrombocytopenia, as reported by the subject or the subject's parent / legally acceptable representative, contraindicating intramuscular vaccination in the Investigator's opinion
Arms & Interventions
Group 6
Menactra®, 1 vaccination, children and adolescents in India aged 2 to 17 years
Intervention: Meningococcal polysaccharide (serogroups A,C,Y and W-135) diphtheria toxoid conjugate vaccine
Group 5
MenACYW conjugate vaccine, 1 vaccination, children and adolescents in India aged 2 to 17 years
Intervention: Meningococcal polysaccharide (serogroups A,C,Y and W) tetanus toxoid conjugate vaccine
Group 1
MenACYW conjugate vaccine, 1 vaccination, adults in India aged 18 to 55 years
Intervention: Meningococcal polysaccharide (serogroups A,C,Y and W) tetanus toxoid conjugate vaccine
Group 2
Menactra® conjugate vaccine, 1 vaccination, adults in India aged 18 to 55 years
Intervention: Meningococcal polysaccharide (serogroups A,C,Y and W-135) diphtheria toxoid conjugate vaccine
Group 3
MenACYW conjugate vaccine, 1 vaccination, adults in India aged ≥ 56 years
Intervention: Meningococcal polysaccharide (serogroups A,C,Y and W) tetanus toxoid conjugate vaccine
Group 4
Quadri Meningo™, 1 vaccination, adults in India aged ≥ 56 years
Intervention: Meningococcal polysaccharide (serogroups A, C, Y and W-135) vaccine
Group 7
MenACYW conjugate vaccine, 1 vaccination, children and adolescents in RSA aged 2 to 17 years
Intervention: Meningococcal polysaccharide (serogroups A,C,Y and W) tetanus toxoid conjugate vaccine
Group 8
Menactra®, 1 vaccination, children and adolescents in RSA aged 2 to 17 years
Intervention: Meningococcal polysaccharide (serogroups A,C,Y and W-135) diphtheria toxoid conjugate vaccine
Outcomes
Primary Outcomes
Group 5 + 7 and Group 6 + 8: Percentage of Participants Who Achieved Antibody Titers ≥1:8 Against Meningococcal Serogroups A, C, Y, and W
Time Frame: Day 30 (30 days post-vaccination on Day 0)
Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured by serum bactericidal assay using human complement (hSBA). Percentages are rounded off to the tenth decimal place. As pre-specified in protocol, the endpoint was assessed in children and adolescents aged 2 to 17 years in India and RSA as combined groups: Group 5 + Group 7 and Group 6 + Group 8 as they received the same dose of MenACYW conjugate vaccine and Menactra® respectively.
Secondary Outcomes
- Group 1 and Group 2: Geometric Mean Titers (GMTs) of Antibodies Against Meningococcal Serogroups A, C, Y, and W(Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0))
- Group 1 and Group 2: Percentage of Participants Who Achieved Antibody Titers ≥Pre-defined Thresholds Against Meningococcal Serogroups A, C, Y, and W(Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0))
- Group 3 and Group 4: Geometric Mean Titers of Antibodies Against Meningococcal Serogroups A, C, Y, and W(Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0))
- Group 3 and Group 4: Percentage of Participants Who Achieved Antibody Titers ≥Pre-defined Thresholds Against Meningococcal Serogroups A, C, Y, and W(Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0))
- Group 5 + 7 and Group 6 + 8: Geometric Mean Titers of Antibodies Against Meningococcal Serogroups A, C, Y, and W(Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0))
- Group 5 and Group 6: Geometric Mean Titers of Antibodies Against Meningococcal Serogroups A, C, Y, and W(Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0))
- Group 5 and Group 6: Percentage of Participants Who Achieved Antibody Titers ≥Pre-defined Thresholds Against Meningococcal Serogroups A, C, Y, and W(Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0))
- Group 7 and Group 8: Geometric Mean Titers of Antibodies Against Meningococcal Serogroups A, C, Y, and W(Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0))
- Group 7 and Group 8: Percentage of Participants Who Achieved Antibody Titers ≥Pre-defined Thresholds Against Meningococcal Serogroups A, C, Y, and W(Day 0 (pre-vaccination) and Day 30 (30 days post-vaccination on Day 0))