NCT04398849

Brief Summary

This study aims to implement a targeted 4CMenB immunisation program in young people aged 14-19 years in the Northern Territory (NT). As part of the NT program consenting 14-19 year olds will receive 2 doses of the licensed 4CMenB vaccine. An oropharyngeal swab will be collected on the same day as the first dose of the vaccine and 12 months later to assess carriage of Neisseria meningitidis. The first swab will assess baseline carriage prevalence among 14-19 year olds in the NT. The swab taken 12 months later will provide data on the change in carriage that may occur after implementation of the immunisation program. Emerging evidence suggests that the 4CMenB vaccine may be protective against gonorrhea. Therefore, vaccine effect (impact and effectiveness) against both invasive meningococcal disease (IMD) and gonorrhea in the NT will be assessed using data from the above study comparing notifications between vaccinated and unvaccinated as well as comparing pre and post implementation periods.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
7,100

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Mar 2021

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 18, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

May 21, 2020

Completed
10 months until next milestone

Study Start

First participant enrolled

March 4, 2021

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
Last Updated

March 9, 2023

Status Verified

March 1, 2023

Enrollment Period

3.8 years

First QC Date

May 18, 2020

Last Update Submit

March 7, 2023

Conditions

Outcome Measures

Primary Outcomes (2)

  • 1. 4CMenB vaccination status in the population with gonorrhoea compared to randomly selected Chlamydia controls (Case-control)

    Vaccination status among 15-19 year olds diagnosed with gonorrhoea compared to vaccination status of 15 - 19 year olds diagnosed with Chlamydia

    3 years

  • Effect of 4CMenB vaccine on carriage of all N.meningitidis

    Prevalence of all N. meningitidis in the pharynx among 14-19 year olds as measured by PCR at baseline compared to 12 months

    12 months

Secondary Outcomes (17)

  • 4CMenB vaccination status in the population with gonorrhoea compared to randomly selected controls from the Australian Immunisation Register (Case-control)

    3 years

  • 4CMenB vaccination status in the population with gonorrhoea compared to the general population (Screening method)

    3 years

  • All laboratory confirmed notifications of gonorrhoea in the six years preceding 4CMenB vaccination compared to three years post vaccination (Interrupted time series analysis)

    7 years

  • All laboratory confirmed notifications of gonorrhoea in 15-19 year olds in the vaccinated population compared to the unvaccinated population

    3 years

  • All laboratory confirmed notifications of gonorrhoea in the vaccinated population compared to the unvaccinated population stratified by gender

    3 years

  • +12 more secondary outcomes

Other Outcomes (3)

  • Whole genome sequencing of all carriage isolates

    12 months

  • Whole genome sequencing of all disease causing carriage isolates

    12 months

  • Awareness of STIs and STI testing among young adults

    12 months

Study Arms (1)

14-19 year olds residing in the Northern Territory

All consenting 14-19 year olds residing in the Northern Territory in 2020-2021

Biological: Licenced 4CMenB Vaccine

Interventions

Two doses (0.5 mL each) of Bexsero ® vaccine at least 2 months apart to be given to consenting 14-19 year olds

14-19 year olds residing in the Northern Territory

Eligibility Criteria

Age14 Years - 19 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

All consenting 14-19-year-olds residing in the Northern Territory who do not have any of the above exclusion criteria

You may qualify if:

  • All consenting 14-19 year olds residing in the Northern Territory in 2020-2021

You may not qualify if:

  • Anaphylaxis following any component of Bexsero® vaccine
  • Previous receipt of MenB vaccine (Bexsero® (Previous receipt of MenNZBTM is allowed).
  • Known pregnancy
  • Clinical conditions representing a contraindication to intramuscular vaccination and venipuncture
  • Any clinical condition that, in the opinion of the investigator, might pose additional risk to the subject due to participation in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Northern Territory

Central Australia, Australia

RECRUITING

Related Publications (1)

  • Marshall HS, Andraweera PH, Ward J, Kaldor J, Andrews R, Macartney K, Richmond P, Krause V, Koehler A, Whiley D, Giles L, Webby R, D'Antoine H, Karnon J, Baird R, Lawrence A, Petousis-Harris H, De Wals P, Greenwood-Smith B, Binks M, Whop L. An Observational Study to Assess the Effectiveness of 4CMenB against Meningococcal Disease and Carriage and Gonorrhea in Adolescents in the Northern Territory, Australia-Study Protocol. Vaccines (Basel). 2022 Feb 16;10(2):309. doi: 10.3390/vaccines10020309.

Biospecimen

Retention: SAMPLES WITHOUT DNA

Oropharyngeal swab specimens

MeSH Terms

Conditions

GonorrheaMeningococcal Infections

Condition Hierarchy (Ancestors)

Neisseriaceae InfectionsGram-Negative Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfectionsSexually Transmitted Diseases, BacterialSexually Transmitted DiseasesCommunicable DiseasesGenital DiseasesUrogenital Diseases

Central Study Contacts

Helen Marshall, MBBS,MD,MPH

CONTACT

Prabha Andraweera, MBBS,PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

May 18, 2020

First Posted

May 21, 2020

Study Start

March 4, 2021

Primary Completion

December 31, 2024

Study Completion

December 31, 2024

Last Updated

March 9, 2023

Record last verified: 2023-03

Data Sharing

IPD Sharing
Will share

De-identified, individual participant data underlying published results will be available

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
We estimate the data will be available from the start of 2025 for approximately 12 months
Access Criteria
IPD will be made available on a case-by-case basis at the discretion of the International Scientific Advisory Committee and The NT Department of Health and Menzies School of Health Research and the Central Australian HREC. IPD data will only be available to achieve the aims in the approved proposal

Locations