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Study on Immunogenicity and Safety of a Meningococcal ACYW Conjugate Vaccine in Healthy Infants and Toddlers

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Sanofi

Status and phase

Completed
Phase 3

Conditions

Healthy Volunteers
Meningococcal Immunisation

Treatments

Biological: MenACYW conjugate vaccine

Study type

Interventional

Funder types

Industry

Identifiers

NCT06284915
MEQ00089 (Other Identifier)
U1111-1280-6981 (Registry Identifier)
2023-508177-85 (Registry Identifier)

Details and patient eligibility

About

This study is conducted to support a 2-dose series (1+1 vaccination schedule) for immunization of individuals from 6 months of age. The study is designed to evaluate the non-inferiority of the immunological response of MenACYW conjugate vaccine to Nimenrix® after the completion of the 2-dose series (1+1 vaccination schedule), with the first dose (priming dose) being given at 6-7 months of age to MenACWY- naïve healthy infants and the second dose (booster dose) given at 12-13 months of age. This study will also describe additional immunogenicity parameters and safety of MenACYW conjugate vaccine and Nimenrix® in the same population of participants.

Full description

The study duration will be approximately 7 to 8.5 months (at least 7 months per participant).

Enrollment

840 patients

Sex

All

Ages

6 to 14 months old

Volunteers

Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:

  • Aged 6 to 7 months on the day of inclusion
  • Participants who are healthy as determined by medical evaluation including medical history, physical examination and judgment of the Investigator

Exclusion Criteria: Participants are excluded from the study if any of the following criteria apply:

  • 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 study (specifically but not limited to participants with persistent complement deficiency, with anatomic or functional asplenia, or participants traveling to countries with high endemic or epidemic disease)
  • Personal history of Guillain-Barré syndrome
  • Personal history of an Arthus-like reaction after vaccination with a tetanus toxoid-containing vaccine
  • Known systemic hypersensitivity to any of the study intervention components, or history of a life-threatening reaction to the study intervention(s) used in the study or to a product containing any of the same substances
  • Moderate or severe acute illness/infection (according to investigator judgment) or febrile illness (temperature ≥ 38.0°C [≥ 100.4°F]) on the day of study intervention administration. A prospective participant should not be included in the study until the condition has resolved or the febrile event has subsided
  • Receipt of any vaccine (including COVID-19) and Meningococcal B vaccines) in the 4 weeks preceding the first and second study intervention administration or planned receipt of any vaccine (including COVID-19 and Meningococcal B vaccines) in the 4 weeks following any study intervention administration except for influenza vaccination, which may be received at least 2 weeks before or 2 weeks after the study interventions. This exception includes monovalent pandemic influenza vaccines and multivalent influenza vaccines.
  • Previous vaccination against meningococcal A, C, W, or Y disease with either the trial vaccine or another vaccine (i.e., mono- or quadrivalent meningococcal conjugate vaccine) containing serogroups A, C, Y, or W.

Trial design

Primary purpose

Prevention

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Triple Blind

840 participants in 2 patient groups

Group 1: MenACYW conjugate vaccine
Experimental group
Description:
Participants will receive MenACYW Conjugate Vaccine (MenQuadfi®): 2-dose schedule (1+1); dose 1 (priming dose) at 6-7 months of age and dose 2 (booster dose) at 12-13 months of age (MenQuadfi®)
Treatment:
Biological: MenACYW conjugate vaccine
Biological: MenACYW conjugate vaccine
Group 2: Nimenrix®
Active Comparator group
Description:
Participants will receive Nimenrix®: 2-dose schedule (1+1); dose 1 (priming dose) at 6-7 months of age and dose 2 (booster dose) at 12-13 months of age
Treatment:
Biological: MenACYW conjugate vaccine
Biological: MenACYW conjugate vaccine

Trial contacts and locations

45

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Central trial contact

Trial Transparency email recommended (Toll free for US & Canada)

Data sourced from clinicaltrials.gov

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