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Mucosal Immunity Against Neisseria Gonorrhoeae After 4CMenB Vaccination

NCT04722003 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 52

Last updated 2024-11-05

Study results available
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Summary

This is a Phase 2 mechanistic clinical trial to assess the systemic and mucosal immunogenicity of the multicomponent meningococcal serogroup B vaccine (4CMenB or Bexsero (R)) (group 1, 40 subjects) against Neisseria gonorrhoeae, using a placebo vaccine (normal saline) as a comparator (group 2, 10 subjects). There will be approximately 50 participants, ages 18-49, both male and non-pregnant female subjects, enrolled at 1 site in the US. The goal will be to ensure adequate representation of subjects by sex in both treatment groups. The enrollment will be stratified by both sex and treatment arm. During enrollment of the "biopsy cohort" male and non-pregnant female subjects will be randomized 4:1 to either 4CMenB or placebo, up to a maximum of 10 male and 10 non-pregnant female subjects. Group 1 (approximate N=40) will receive two doses of 4CMenB on Day 1 and Day 29. Group 2 (approximate N=10) will receive two placebo injections on Day 1 and Day 29. Both groups will receive a single-dose prefilled syringe that is administered intramuscularly (0.5-mililiter each). The duration of each subject's participation is approximately 8 months, from recruitment through the last study visit, and the length of the study is estimated for 14 months. The primary objective is to characterize the rectal mucosal Immunoglobulin G IgG antibody response to Neisseria gonorrhoeae (GC) elicited by the 4CMenB vaccine as compared with the placebo vaccine (normal saline) in healthy adult subjects.

Conditions

  • Gonorrhoea

Interventions

BIOLOGICAL

Meningococcal Group B Vaccine

A combination vaccine consisting of recombinant proteins Neisserial adhesin A (NadA), Neisserial Heparin Binding Antigen (NHBA), and factor H binding protein (fHbp), Outer Membrane Vesicles (OMV), aluminum hydroxide, sodium chloride, histidine, and sucrose.

OTHER

Placebo

0.9% Sodium Chloride, USP injection.

Sponsors & Collaborators

  • National Institute of Allergy and Infectious Diseases (NIAID)

    lead NIH

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
49 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-11-01
Primary Completion
2023-10-02
Completion
2023-10-02
FDA Drug
Yes

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04722003 on ClinicalTrials.gov