Study to Assess the Safety and Immunogenicity of a Single Dose of a Quadrivalent Meningococcal (MenACYW) Conjugate Vaccine in Older Adults Who Received a Primary Vaccination (3 or More Years Earlier) in Study MET49
Public ClinicalTrials.gov record NCT04142242. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Safety and Immunogenicity of a Single Dose of MenACYW Conjugate Vaccine at Least 3 Years Following Initial Vaccination With Either Menomune® Vaccine or MenACYW Conjugate Vaccine in Older Adults
Study identification
- NCT ID
- NCT04142242
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Sanofi Pasteur, a Sanofi Company
- Industry
- Enrollment
- 471 participants
Conditions and interventions
Conditions
Interventions
- Meningococcal Polysaccharide (serogroups A, C, Y, and W) Tetanus Toxoid Conjugate Vaccine Biological
- Blood sample Other
Biological · Other
Eligibility (public fields only)
- Age range
- 59 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 3, 2019
- Primary completion
- Mar 31, 2020
- Completion
- May 24, 2022
- Last update posted
- Sep 10, 2025
2019 – 2022
United States locations
- U.S. sites
- 33
- U.S. states
- 18
- U.S. cities
- 30
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Investigational Site Number 8400026 | Chandler | Arizona | 85225 | — |
| Investigational Site Number 8400003 | San Diego | California | 92123-1881 | — |
| Investigational Site Number 8400028 | Waterbury | Connecticut | 06708 | — |
| Investigational Site Number 8400038 | Clearwater | Florida | 33756 | — |
| Investigational Site Number 8400023 | DeLand | Florida | 32720 | — |
| Investigational Site Number 8400007 | Jacksonville | Florida | 32205 | — |
| Investigational Site Number 8400015 | Jacksonville | Florida | 32216 | — |
| Investigational Site Number 8400022 | Ponte Vedra | Florida | 32081 | — |
| Investigational Site Number 8400032 | Port Orange | Florida | 32127 | — |
| Investigational Site Number 8400020 | West Palm Beach | Florida | 33409 | — |
| Investigational Site Number 8400027 | Newton | Kansas | 67114 | — |
| Investigational Site Number 8400017 | Wichita | Kansas | 67205 | — |
| Investigational Site Number 8400016 | Metairie | Louisiana | 70006 | — |
| Investigational Site Number 8400010 | Elkridge | Maryland | 21075 | — |
| Investigational Site Number 8400031 | Richfield | Minnesota | 55423 | — |
| Investigational Site Number 8400030 | St Louis | Missouri | 63141 | — |
| Investigational Site Number 8400019 | Endwell | New York | 13760 | — |
| Investigational Site Number 8400021 | Greensboro | North Carolina | 27408 | — |
| Investigational Site Number 8400012 | Raleigh | North Carolina | 27612 | — |
| Investigational Site Number 8400033 | Winston-Salem | North Carolina | 27103 | — |
| Investigational Site Number 8400013 | Fargo | North Dakota | 58104 | — |
| Investigational Site Number 8400035 | Cincinnati | Ohio | 45241 | — |
| Investigational Site Number 8400005 | Cincinnati | Ohio | 45246 | — |
| Investigational Site Number 8400011 | Columbus | Ohio | 43212 | — |
| Investigational Site Number 8400014 | Uniontown | Pennsylvania | 15401 | — |
| Investigational Site Number 8400018 | Anderson | South Carolina | 29621 | — |
| Investigational Site Number 8400034 | Mt. Pleasant | South Carolina | 29464 | — |
| Investigational Site Number 8400036 | Mt. Pleasant | South Carolina | 29464 | — |
| Investigational Site Number 8400024 | Dallas | Texas | 75231 | — |
| Investigational Site Number 8400001 | Murray | Utah | 84123 | — |
| Investigational Site Number 8400002 | Salt Lake City | Utah | 84107 | — |
| Investigational Site Number 8400025 | West Jordan | Utah | 84088-8865 | — |
| Investigational Site Number 8400004 | Charlottesville | Virginia | 22911 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04142242, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 10, 2025 · Synced Jul 21, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04142242 live on ClinicalTrials.gov.