CClinicalTrials.gg
CompletedNCT03205358Updated Apr 4, 2022Results posted

Immunogenicity and Safety of an Investigational Quadrivalent Meningococcal Conjugate Vaccine in Healthy Toddlers

A Phase 2 interventional study of Meningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid Conjugate Vaccine and Meningococcal Polysaccharide groups A, C, W-135 and Y Conjugate Vaccine in Meningitis, Meningococcal Meningitis and Meningococcal Infections, sponsored by Sanofi Pasteur, a Sanofi Company. Completed at 8 sites in Finland. Open to participants aged 12 Months to 23 Months, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-04-04.

Sponsored by Sanofi Pasteur, a Sanofi Company · Phase 2, Interventional, and Prevention

From the registry’s dates

  • Registered 2 years 2 months after the study started (first participant enrolled Mar 2015, registered Jun 2017).
Phase
Phase 2
Study type
Interventional
Enrollment
188
Allocation
Randomized
Ages
12 Months to 23 Months
Sex
All
01

Study summary

The purpose of the study was to evaluate the immunogenicity and safety profile of a single dose of Meningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid (MenACYW) Conjugate vaccine when given alone compared to that of the licensed Meningococcal groups A, C, W 135 and Y (NIMENRIX®) Conjugate vaccine.

Observational objectives:

  • To evaluate the antibody responses to the antigens (serogroups A, C, Y, and W) present in MenACYW Conjugate vaccine and NIMENRIX® measured by serum bactericidal assay using baby rabbit complement (rSBA) and by serum bactericidal assay using human complement (hSBA)
  • To evaluate the antibody responses against tetanus in participants who received MenACYW Conjugate vaccine or NIMENRIX® vaccine
  • To evaluate the safety profile of MenACYW Conjugate vaccine and NIMENRIX®
Read the detailed description

All participants received 1 dose of MenACYW Conjugate vaccine or NIMENRIX® on Day 0 and were evaluated for immunogenicity and safety profile. The duration of each participant's participation in the trial was 30 to 44 days.

02

Conditions studied

  • Meningitis
  • Meningococcal Meningitis
  • Meningococcal Infections

Keywords

  • Meningitis
  • Meningococcal Meningitis
  • MenACYW Conjugate vaccine
  • NIMENRIX®
03

In context

Meningococcal Infections

219 studies on the registry are indexed under Meningococcal Infections; 6 are open to participants now.

This study's enrollment of 188 is below the median of 450 across 190 interventional studies indexed under Meningococcal Infections.

Browse Meningococcal Infections studies →

Lead sponsor

Sanofi Pasteur, a Sanofi Company is the lead sponsor of 366 studies on the registry; 4 are open to participants now.

Of its 94 completed or terminated interventional studies of FDA-regulated products, 73 (78%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
12 Months to 23 Months
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Aged 12 to 23 months on the day of the first study visit.
  • Born at full term of pregnancy (greater than or equal to [≥] 37 weeks) or with a birth weight ≥2.5 kilogram (kg) (5.5 pounds).
  • Inform Consent Form (ICF) had been signed and dated by the parent(s) or other legally acceptable representative (and by an independent witness if required by local regulations).
  • Participant and parent/legally acceptable representative were able to attend all scheduled visits and to comply with all trial procedures.
  • Covered by health insurance where applicable.

Exclusion criteria

Exclusion Criteria:

  • 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 preceding the trial vaccination or planned receipt of any vaccine before the final blood draw except for influenza vaccination, which might be received at least 2 weeks before or after the study vaccine.
  • Previous vaccination against meningococcal disease with either the trial vaccine or mono-, or polyvalent polysaccharide or Conjugate meningococcal vaccine containing serogroups A, B, C, W, or Y.
  • 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 (≥ 2 milligram [mg]/kg/day of 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 (i.e., participants with persistent complement deficiency, with anatomic or functional asplenia, or participants travelling to countries with high endemic or epidemic disease).
  • Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccines used in the trial or to a vaccine containing any of the same substances.
  • Known systemic hypersensitivity to latex.
  • Known thrombocytopenia, as reported by the parent/legally acceptable representative.
  • Bleeding disorder or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM vaccination.
  • Personal history of Guillain-Barré syndrome.
  • Personal history of an Arthus-like reaction after vaccination with a tetanus toxoid-containing vaccine.
  • Chronic illness that, in the opinion of the Investigator, was at a stage where it might interfere with trial conduct or completion.
  • Moderate or severe acute illness/infection (according to Investigator judgment) on the day of vaccination or febrile illness (temperature ≥38.0 degree Celsius (°C). A prospective participant should not be included in the study until the condition had resolved or the febrile event had 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.
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
188 participants (actual)

Study arms

  • Experimental
    Group 1: MenACYW Conjugate Vaccine

    Healthy, meningococcal-vaccine naive toddlers aged 12 to 23 months received a single dose of MenACYW Conjugate vaccine.

    Biological: Meningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid Conjugate Vaccine

  • Active comparator
    Group 2: NIMENRIX®

    Healthy, meningococcal-vaccine naive toddlers aged 12 to 23 months received a single dose of NIMENRIX® vaccine.

    Biological: Meningococcal Polysaccharide groups A, C, W-135 and Y Conjugate Vaccine

Interventions

  • BiologicalMeningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid Conjugate Vaccine

    0.5 milliliter (mL), Intramuscular (IM)

    Also known as: MenACYW Conjugate vaccine

  • BiologicalMeningococcal Polysaccharide groups A, C, W-135 and Y Conjugate Vaccine

    0.5 mL, IM

    Also known as: NIMENRIX®

06

What researchers measure

Primary outcomes

  1. Number of Participants Reporting Solicited Injection-Site and Systemic Reaction Following Vaccination With Either MenACYW Conjugate Vaccine or NIMENRIX®

    A solicited reaction was defined as an adverse reaction (AR) observed and reported under the conditions (symptom and onset) prelisted (i.e., solicited) in the case report form (CRF) and considered as related to vaccination. Solicited injection site reactions: Tenderness, Erythema, and Swelling. Solicited systemic reactions: Fever, Vomiting, Crying abnormal, Drowsiness, Appetite lost, and Irritability. Grade 3 solicited injection site reactions: Tenderness: cries when injected limb was moved or the movement of the injected limb was reduced; Erythema and Swelling: greater than or equal to (≥) 50 millimeter (mm). Grade 3 solicited systemic reactions: Fever: greater than \[\>\] 39.5 degree Celsius (°C); Vomiting: ≥6 episodes per 24 hours or requiring parenteral hydration; crying abnormal: \>3 hours; Drowsiness: sleeping most of the time or difficult to wake up; Appetite lost: refuses ≥3 feeds or refuses most feeds; Irritability: inconsolable.

    Time frame: Day 0 up to Day 7 post-vaccination

07

Results

Posted Jun 5, 2020

Participant flow

Study participants were enrolled from 31 March 2015 to 17 July 2015 at 8 clinic centers in Finland.

Participant flow — Overall Study
MilestoneGroup 1: MenACYW Conjugate VaccineGroup 2: NIMENRIX®
Started9494
Completed9494
Not completed00

Outcome measures

PrimaryNumber of Participants Reporting Solicited Injection-Site and Systemic Reaction Following Vaccination With Either MenACYW Conjugate Vaccine or NIMENRIX®

A solicited reaction was defined as an adverse reaction (AR) observed and reported under the conditions (symptom and onset) prelisted (i.e., solicited) in the case report form (CRF) and considered as related to vaccination. Solicited injection site reactions: Tenderness, Erythema, and Swelling. Solicited systemic reactions: Fever, Vomiting, Crying abnormal, Drowsiness, Appetite lost, and Irritability. Grade 3 solicited injection site reactions: Tenderness: cries when injected limb was moved or the movement of the injected limb was reduced; Erythema and Swelling: greater than or equal to (≥) 50 millimeter (mm). Grade 3 solicited systemic reactions: Fever: greater than \[\>\] 39.5 degree Celsius (°C); Vomiting: ≥6 episodes per 24 hours or requiring parenteral hydration; crying abnormal: \>3 hours; Drowsiness: sleeping most of the time or difficult to wake up; Appetite lost: refuses ≥3 feeds or refuses most feeds; Irritability: inconsolable.

Time frame:
Day 0 up to Day 7 post-vaccination
Reported as:
Count of participants · Participants
Number of Participants Reporting Solicited Injection-Site and Systemic Reaction Following Vaccination With Either MenACYW Conjugate Vaccine or NIMENRIX®
ParticipantsGroup 1: MenACYW Conjugate VaccineGroup 2: NIMENRIX®
Any Injection site tenderness2831
Grade 3 Injection site tenderness01
Any Injection site erythema2933
Grade 3 Injection site erythema21
Any Injection site swelling1417
Grade 3 Injection site swelling13
Any Fever74
Grade 3 Fever10
Any Vomiting45
Grade 3 Vomiting00
Any Abnormal crying3137
Grade 3 Abnormal crying10
Any Drowsiness3226
Grade 3 Drowsiness00
Any Loss of appetite2234
Grade 3 Loss of appetite11
Any Irritability4953
Grade 3 Irritability02

Adverse events

Collected over Unsolicited adverse events (AEs) data were collected from Day 0 up to Day 30 post-vaccination. The solicited reactions (SRs) were collected up to Day 7 after vaccination. Serious AEs were collected throughout the trial (up to 30 days after vaccination).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Group 1: MenACYW Conjugate Vaccine0/94 (0%)1/94 (1.1%)49/94 (52.1%)
Group 2: NIMENRIX®0/94 (0%)0/94 (0%)53/94 (56.4%)
Most frequent serious events
Most frequent serious events
EventGroup 1: MenACYW Conjugate VaccineGroup 2: NIMENRIX®
Ligament injuryInjury, poisoning and procedural complications1/940/94
Wrist fractureInjury, poisoning and procedural complications1/940/94
Most frequent other events
Showing 10 of 17
Most frequent other events
EventGroup 1: MenACYW Conjugate VaccineGroup 2: NIMENRIX®
IrritabilityPsychiatric disorders49/9453/94
Abnormal cryingPsychiatric disorders31/9437/94
Loss of appetiteMetabolism and nutrition disorders22/9434/94
Injection site ErythemaGeneral disorders29/9433/94
DrowsinessNervous system disorders32/9426/94
Injection site TendernessGeneral disorders28/9431/94
Injection site SwellingGeneral disorders14/9417/94
Upper respiratory tract infectionInfections and infestations8/9416/94
NasopharyngitisInfections and infestations9/945/94
DiarrhoeaGastrointestinal disorders8/944/94

Baseline characteristics

The analysis was performed on safety analysis set which included those participants who had received at least 1 dose of the study vaccine and had any safety data available.

Age, Continuous
Age, Continuous(years)Group 1: MenACYW Conjugate VaccineGroup 2: NIMENRIX®Total
Mean1.44 ± 0.3021.47 ± 0.3141.45 ± 0.308
Sex: Female, Male
Sex: Female, Male(Participants)Group 1: MenACYW Conjugate VaccineGroup 2: NIMENRIX®Total
Female375390
Male574198
08

Study locations

8 sites
  • Investigational Site Number 005
    Espoo, 02230, Finland
  • Investigational Site Number 006
    Helsinki, 00100, Finland
  • Investigational Site Number 002
    Helsinki, 00930, Finland
  • Investigational Site Number 007
    Järvenpää, 04400, Finland
  • Investigational Site Number 008
    Oulu, 90220, Finland
  • Investigational Site Number 001
    Pori, 28100, Finland
  • Investigational Site Number 003
    Tampere, 33100, Finland
  • Investigational Site Number 004
    Turku, 20520, Finland
09

References and documents

Publications

  • Vesikari T, Borrow R, Forsten A, Findlow H, Dhingra MS, Jordanov E. Immunogenicity and safety of a quadrivalent meningococcal tetanus toxoid-conjugate vaccine (MenACYW-TT) in healthy toddlers: a Phase II randomized study. Hum Vaccin Immunother. 2020 Jun 2;16(6):1306-1312. doi: 10.1080/21645515.2020.1733869. Epub 2020 Apr 1. PubMed 32233959 ↗

Individual participant data

Plan to share: Yes — Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 4, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03205358
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Responsible party
Sponsor
First posted
Jul 2, 2017
Start date
Mar 31, 2015
Primary completion
Aug 19, 2015
Completion
Aug 19, 2015
Results posted
Jun 5, 2020
Last update
Apr 4, 2022

Study contacts

Medical Director
study director · Sanofi Pasteur Inc.

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2022. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion