Immunogenicity and Safety Study of a Quadrivalent Meningococcal Conjugate Vaccine When Co-administered With Routine Pediatric Vaccines in Healthy Infants and Toddlers in Europe

  • End date
    Oct 20, 2023
  • participants needed
  • sponsor
    Sanofi Pasteur, a Sanofi Company
Updated on 25 July 2022
For site information, send an email with site number to
Primary Contact
Investigational Site Number :2031003 (0.9 mi away) Contact
+30 other location
hepatitis b
antibody response
hib vaccine
conjugate vaccine
meningococcal vaccine
whooping cough
meningococcal conjugate
Accepts healthy volunteers


Primary objective is to demonstrate the non-inferiority of the antibody response against meningococcal serogroups A, C, Y, and W following the administration of a 3-dose series of MenACYW conjugate vaccine compared to a 3-dose series of a licensed meningococcal vaccine when each vaccine is given concomitantly with routine pediatric vaccines (10-valent pneumococcal vaccine and diphtheria, tetanus, pertussis, hepatitis B, poliomyelitis and Haemophilus influenzae type b [DTaP-IPV-HB-Hib vaccine]) to infants and toddlers 6 weeks to 18 months old

Secondary objectives are:

  • To demonstrate the non-inferiority of the antibody (Ab) response against meningococcal serogroups A, C, Y, and W following the administration of 2 doses in infancy of MenACYW conjugate vaccine compared to 2 doses of a licensed meningococcal vaccine when each vaccine is given concomitantly with routine pediatric vaccines (10-valent pneumococcal vaccine and DTaP-IPV-HB-Hib vaccine) to infants and toddlers 6 weeks to 18 months old.
  • To describe the Ab responses against meningococcal groups A, C, Y, and W and the antigens of the routine pediatric vaccines administered in the study.

Condition Meningococcal Infections
Treatment MMR vaccine, MenACYW conjugate vaccine, Nimenrix®, DTaP-IPV-HB-Hib vaccine, Pneumococcal vaccine (13-valent), Pneumococcal vaccine (10-valent), Meningococcal group A, C, W-135, and Y conjugate vaccine
Clinical Study IdentifierNCT03547271
SponsorSanofi Pasteur, a Sanofi Company
Last Modified on25 July 2022


Yes No Not Sure

Inclusion Criteria

Aged ≥ 42 to ≤ 89 days on the day of the first study visit
Healthy infants as determined by medical history, physical examination and judgment of the Investigator
Informed consent form has been signed and dated by the parent(s) or other legally acceptable representative
Subject and parent/legally acceptable representative are able to attend all scheduled visits and to comply with all study procedures
Covered by health insurance according to local regulations

Exclusion Criteria

articipation at the time of study enrollment (or in the 4 weeks preceding the first 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 first study vaccination or planned receipt of any vaccine in the 4 weeks before and/or following any study vaccination except for influenza vaccination and rotavirus vaccination, which may be received at a gap of at least 2 weeks before or 2 weeks after any study vaccines. This exception includes monovalent pandemic influenza vaccines and multivalent influenza vaccines. This exclusion criterion does not apply to subjects in Finland, Sweden or Poland who plan to receive the licensed rotavirus vaccine concomitantly with study vaccines at study vaccination visits V1 and V2
Receipt or planned to receipt during the study period vaccination against meningococcal disease with either the study vaccine 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)
Previous vaccination against diphtheria, tetanus, pertussis, Haemophilus influenzae type B (Hib), poliovirus, Streptococcus pneumoniae, measles, mumps, or rubella. Previous vaccination against hepatitis B when administered to risk groups, as per local recommendation
Receipt of immune globulins, blood or blood-derived products since birth
Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks) since birth
Family history of congenital or hereditary immunodeficiency, unless the immune competence of the potential vaccine recipient is demonstrated
Individuals with blood dyscrasias, leukemia, lymphoma of any type, or other malignant neoplasms affecting the bone marrow or lymphatic systems
Individuals with active tuberculosis
History of Neisseria meningitidis infection, confirmed either clinically, serologically, or microbiologically
History of diphtheria, tetanus, pertussis, poliomyelitis, hepatitis B, measles, mumps, rubella, and of Haemophilus influenzae type b, and / or Streptococcus pneumoniae infection or disease
At high risk for meningococcal infection during the study (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)
Individuals with underlying conditions predisposing them to invasive pneumococcal disease (specifically, but not limited to, subjects with sickle cell disease or human immunodeficiency virus [HIV] infection)
History of any neurologic disorders, including seizures and progressive neurologic disorders
History of Guillain-Barré syndrome
Known systemic hypersensitivity to any of the vaccine components, or history of a severe allergic reaction (e.g., anaphylaxis) to the vaccine(s) used in the study or to a vaccine containing any of the same substances including neomycin, streptomycin, polymyxin B, glutaraldehyde, formaldehyde, and gelatin
Verbal report of thrombocytopenia, contraindicating intramuscular vaccination in the investigator's opinion
Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating intramuscular vaccination in the investigator's opinion
Chronic illness (including, but not limited to, cardiac disorders, congenital heart disease, chronic lung disease, renal disorders, auto-immune disorders, diabetes, psychomotor diseases, and known congenital or genetic diseases) that, in the opinion of the investigator, is at a stage where it might interfere with study conduct or completion
Any condition which, in the opinion of the investigator, might interfere with the evaluation of the study objectives, including planning to leave the area of the study site before the end of the study
Moderate or severe acute illness/infection (according to investigator judgment) on the day of vaccination or febrile illness (temperature ≥ 38.0°C). A prospective subject should not be included in the study until the condition has resolved or the febrile event has subsided
Receipt of oral or injectable antibiotic therapy within 72 hours prior to the first blood draw Identified as a natural or adopted child of the Investigator or employee with direct involvement in the proposed study
Infants born preterm (by less than 37 weeks of gestation) requiring specific immunization schedule for routine childhood vaccines and/or specific care at the time of vaccination, as per national recommendations
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