Safety of a Meningococcal (Groups A, C, Y and W-135) Polysaccharide Diphtheria Toxoid Conjugate Vaccine in Healthy Subjects in Vietnam

Study Overview
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Brief Summary
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The aim of the study is to assess the safety of Menactra vaccine in infants, toddlers, children, adolescents, and adults Objective: To describe the safety profile after each and any dose (when applicable) of Menactra vaccine in participants aged 9 months to 55 years for registration.

Detailed Description
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Infants and toddlers will receive 2 doses of vaccine 3 months apart. Children ≥ 2 years through adults aged 55 years will receive 1 dose of vaccine. All participants will be evaluated for safety up to 28 days post-vaccination.

Official Title
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Safety of a Meningococcal (Groups A, C, Y and W-135) Polysaccharide Diphtheria Toxoid Conjugate Vaccine (Menactra®) in Healthy Subjects Aged 9 Months to 55 Years in Vietnam

Conditions
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Meningitis, Meningococcal Meningitis, Meningococcal Infections

Intervention / Treatment
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* Biological: Meningococcal (Groups A, C, Y and W-135) Polysaccharide Diphtheria Toxoid Conjugate Vaccine
* Biological: Meningococcal (Groups A, C, Y and W-135) Polysaccharide Diphtheria Toxoid Conjugate Vaccine


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Aged 9 months to 55 years on the day of the first study visit For adults: Informed consent form had been signed and dated by the participant For minors: Informed consent form had been signed and dated by the parent or legally acceptable representative. In addition, in accordance with the Independent Ethics Committee /Institutional Review Board requirements and as appropriate for the age of the participant, the participant may be required to sign and date the informed consent form if aged 12 to 17 years or assent form if aged 8 to 11 years Participant and/or parent/legally acceptable representative (if applicable) were able to attend all scheduled visits and to comply with all study procedures Exclusion Criteria: Participation at the time of study enrollment (or in the 4 weeks preceding study vaccination) or planned participation during the present study period in another clinical study investigating a vaccine, drug, medical device, or medical procedure Receipt of any vaccine in the 4 weeks preceding the study vaccination or planned receipt of any vaccine in the 4 weeks following study vaccination 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 (>=2 mg/kg/day prednisone or equivalent for more than 2 consecutive weeks within the past 3 months) Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccine used in the study or to a vaccine containing any of the same substances Laboratory-confirmed, self-reported, or known (as reported by the parent/legally acceptable representative) thrombocytopenia, contraindicating intramuscular vaccination Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating intramuscular vaccination Personal history of Guillain-Barré syndrome Chronic illness that, in the opinion of the investigator, was at a stage where it might interfere with study conduct or completion Moderate or severe acute illness/infection (according to investigator judgment) on the day of vaccination or febrile illness (temperature ≥ 37.5°C or ≤ 35.5°C). A prospective participant should not be included in the study until the condition has resolved or the febrile event had subsided Identified as a natural or adopted child of the Investigator or employee with direct involvement in the proposed study, or identified as an immediate family member (i.e., parent, spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study Participant was pregnant, or lactating, or of childbearing potential (to be considered of non-childbearing potential, a female must be pre-menarche or post-menopausal for at least 1 year, surgically sterile, or using an effective method of contraception or abstinence from at least 4 weeks prior to vaccination and until at least 4 weeks after vaccination) Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily Current alcohol abuse or drug addiction

Ages Eligible for Study
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Minimum Age: 9 Months
Maximum Age: 55 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Menactra® Vaccine (9 to 23 Months)<br>Participants (infants and toddlers) received 2-dose series of study vaccine with 3-month interval (first dose at Day 0 and second dose 3 months after dose 1). | Biological: Meningococcal (Groups A, C, Y and W-135) Polysaccharide Diphtheria Toxoid Conjugate Vaccine<br>* 0.5 mL, Intramuscular. 2 doses 3 months apart<br>* Other names: Menactra®;|
| Experimental: Menactra® Vaccine (2 to 55 Years)<br>Participants (children, adolescents and adults) received 1 dose of study vaccine at Day 0. | Biological: Meningococcal (Groups A, C, Y and W-135) Polysaccharide Diphtheria Toxoid Conjugate Vaccine<br>* 0.5 mL, Intramuscular.<br>* Other names: Menactra®;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of Participants Reporting Solicited Injection-Site Reactions Following Vaccination: Menactra® Vaccine (9 to 23 Months) | Solicited injection (Inj.) site reactions: Tenderness/Pain (Grade 1: minor reaction when Inj. site touched; Grade 2: cries/protests when Inj. site touched; Grade 3: cries when injected limb moved, or the movement of the injected limb is reduced), Erythema and Swelling (Grade 1: >0 to <25 mm, Grade 2: >=25 to <50 mm, Grade 3: >=50 mm). Number of participants with any of the Grade 1, 2 or 3 solicited injection-site reactions and Grade 3 solicited injection-site reactions were reported. | Within 7 days post-vaccination 1, Within 7 days post-vaccination 2 | 
| Number of Participants Reporting Solicited Injection-Site Reactions Following Vaccination: Menactra® Vaccine (2 to 55 Years) | Solicited injection (Inj.) site reactions in children (2-11 years), adolescents and adults (12-55 years): Tenderness/Pain (Grade 1: easily tolerated [children], no interference with activity [adolescents and adults]; Grade 2: sufficiently discomforting [children], some interference[adolescents and adults]; Grade 3: unable to perform usual activities[children]; significant interference with daily activities [adolescents and adults]), Erythema and Swelling (Grade 1: >0 to<25 mm [children], >=25 to <=50 mm [adolescents and adults]; Grade 2: >=25 to <50 mm [children], >=51 to <=100 mm [adolescents and adults], Grade 3: >=50 mm [children]; >100 mm[adolescents and adults]). Number of participants with any of Grade 1, 2 or 3 solicited injection-site reactions and Grade 3 solicited injection-site reactions were reported. | Within 7 days post-vaccination | 
| Number of Participants Reporting Solicited Systemic Reactions Following Vaccination: Menactra® Vaccine (9 to 23 Months) | Solicited systemic reactions: Fever (Grade 1: >=38.0 degree Celsius to <=38.5 degree Celsius; Grade 2: >38.5 degree Celsius to <=39.5 degree Celsius; Grade 3: >39.5 degree Celsius), Vomiting (Grade 1: 1 episode per 24 hours, Grade 2: 2-5 episodes per 24 hours, Grade 3: >=6 episodes per 24 hours), Crying abnormal (Grade 1: <1 hour; Grade 2: 1-3 hours; Grade 3: >3 hours), Drowsiness (Grade 1: sleepier than usual or less interested in surroundings; Grade 2: Not interested in surroundings or did not wake up for a feed / meal; Grade 3: Sleeping most of the time or difficult to wake up), Appetite loss (Grade 1: eating less than normal; Grade 2: missed 1 or 2 feeds / meals completely; Grade 3: refuses >=3 feeds / meals or refuses most feeds / meals), Irritability (Grade 1: easily consolable; Grade 2: requiring increased attention; Grade 3: inconsolable). Number of participants with any of the Grade 1, 2 or 3 systemic reactions and Grade 3 systemic reactions were reported. | Within 7 days post-vaccination 1, Within 7 days post-vaccination 2 | 
| Number of Participants Reporting Solicited Systemic Reactions Following Vaccination: Menactra® Vaccine (2 to 55 Years) | Solicited systemic reactions: Fever (Grade 1: >=38.0 degree Celsius to <=38.4 degree Celsius; Grade 2: >=38.5 degree Celsius to <=38.9 degree Celsius; Grade 3: >=39.0 degree Celsius), headache, malaise and myalgia (Grade 1: no interference with activity, Grade 2: some interference, Grade 3: significant interference). Number of participants with any of the Grade 1, 2 or 3 systemic reactions and Grade 3 systemic reactions were reported. | Within 7 days post-vaccination | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Menactra®, Meningitis, Meningococcal Meningitis, Meningococcal Infections, Meningococcal Vaccine