Meningitis booster vaccine shows promise in phase 3 trial

NCT ID NCT04084769

Completed ⭐️ VACCINE ⭐️ Sponsor: Sanofi Pasteur, a Sanofi Company Source: ClinicalTrials.gov ↗

First seen Oct 01, 2025 · Last updated May 16, 2026 · Updated 31 times

Summary

This study tested a booster dose of an experimental meningitis vaccine in 570 healthy teens and adults who had received a meningitis vaccine 3-6 years earlier. The goal was to see if the booster safely and effectively increased protection against four types of meningococcal bacteria. Results showed the booster triggered a strong immune response in participants.

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Contacts and locations

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Locations

Investigational Site Number 6300001

San Juan, 00981, Puerto Rico
Investigational Site Number 8400001

Layton, Utah, 84041, United States
Investigational Site Number 8400002

Lincoln, Nebraska, 68505, United States
Investigational Site Number 8400003

Salt Lake City, Utah, 84107, United States
Investigational Site Number 8400004

Lincoln, Nebraska, 68516, United States
Investigational Site Number 8400005

San Diego, California, 92123-1881, United States
Investigational Site Number 8400007

Salt Lake City, Utah, 84109, United States
Investigational Site Number 8400009

Norman, Oklahoma, 73069, United States
Investigational Site Number 8400011

Provo, Utah, 84064, United States
Investigational Site Number 8400012

Birmingham, Alabama, 35205, United States
Investigational Site Number 8400013

Bardstown, Kentucky, 40004, United States
Investigational Site Number 8400014

Layton, Utah, 84041, United States
Investigational Site Number 8400015

South Jordan, Utah, 84095, United States
Investigational Site Number 8400018

Kingsport, Tennessee, 37660, United States
Investigational Site Number 8400022

Salt Lake City, Utah, 84109, United States
Investigational Site Number 8400023

Roy, Utah, 84067, United States
Investigational Site Number 8400024

West Jordan, Utah, 84088-8865, United States
Investigational Site Number 8400027

Lincoln, Nebraska, 68504, United States
Investigational Site Number 8400028

South Euclid, Ohio, 44121, United States
Investigational Site Number 8400029

Tullahoma, Tennessee, 37388, United States
Investigational Site Number 8400030

Dayton, Ohio, 45414, United States
Investigational Site Number 8400031

Kaysville, Utah, 84037, United States
Investigational Site Number 8400032

Syracuse, Utah, 84075-9645, United States
Investigational Site Number 8400033

Lexington, Kentucky, 40517, United States
Investigational Site Number 8400034

Bridgeton, Missouri, 63044, United States
Investigational Site Number 8400036

South Jordan, Utah, 84095, United States
Investigational Site Number 8400037

Charlottesville, Virginia, 22903, United States
Investigational Site Number 8400038

Erie, Pennsylvania, 16505, United States
Investigational Site Number 8400039

Charleston, South Carolina, 29414, United States
Investigational Site Number 8400040

Orem, Utah, 84057, United States

Conditions

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MENINGOCOCCAL IMMUNISATION (HEALTHY VOLUNTEERS)