Neisseria MeningitidisB Part Of ItNCT03419533
Study to Assess Oropharyngeal Carriage of N. Meningitidis in South Australian School Leavers
An observational study of Neisseria Meningitidis, run by University of Adelaide at 1 site in Australia.
Trial summary
This is an observational cross sectional study to evaluate the impact of a 4CMenB vaccination program on oropharyngeal N. meningitidis carriage in vaccinated and unvaccinated school leavers. Read more about this study
- Who is it for?
- Ages 17 to 25 yearsHealthy volunteers can take part
- Conditions the study is for
- Neisseria Meningitidis
- How many people
- 6,802 participants
- Where
- 1 siteAustralia
- Study dates
- 1 Feb 2018to 31 Dec 2020
- Phase
- Observational
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 17 to 25 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Study population: School leavers recruited through tertiary education sites and mail out through schools.
Who may be able to join
- South Australian school leavers between 17 to 25 years of age (enrolled in year 12 in the previous year ie year 2018, students are eligible if they were enrolled in year 12 in 2017, year 2019, students are eligible if they were enrolled in year 12 in 2018).
Who cannot join
- No exclusion criteria
Trial locations and contacts
1 site in 1 country.
Australia1 site
Women's and Children's Hosptial
Adelaide, South Australia, 5006
About this study
Official title: An Observational Cross-sectional Study to Assess Oropharyngeal Carriage of N. Meningitidis in South Australian School Leavers
This is an observational cross sectional study to evaluate the impact of a 4CMenB vaccination program on oropharyngeal N. meningitidis carriage in vaccinated and unvaccinated school leavers.
Read the detailed description
This carriage study of a cohort of school leavers in South Australia (SA) will provide an opportunity to assess carriage rates in the young adult population (school leavers) following introduction of a 4CMenB vaccination program in senior school students from 2017-2018.This will allow a comparison of carriage prevalence in the two years (2018 and 2019) following implementation of the school program to assess impact on carriage at a population level and compare carriage prevalence in vaccinated versus non-vaccinated groups. Assessment of any association between risk factors and prevalence of nasopharyngeal carriage in school leavers will be made and compared between vaccinated and unvaccinated students.
School leavers are defined as students who were enrolled in year 12 at school in the preceding year of recruitment and have been chosen as they are likely to have the highest carriage rates. A high proportion (approximately two thirds) of students will be immunised by the time of throat swab collection in years 2018 and 2019. Assessing carriage in both vaccinated and unvaccinated cohorts will further inform the effect of 4CMenB vaccine on carriage at a population level. This will help determine any herd immunity impact of 4CMenB vaccine and persistence of any effect.
- Conditions
- Neisseria Meningitidis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| 2018 school leavers | South Australian school leavers in 2018 (year 12 in 2017) | |
| 2019 school leavers | South Australian school leavers in 2019 (year 12 in 2018) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Estimate the Difference in Carriage Prevalence of Disease Associated Genogroups of N. Meningitidis (A, B, C, W, X, Y) Between School Leavers in 2018 (Year 12 in 2017) and 2019 (Year 12 in 2018), Following a 4CMenB School Immunisation Program
As measured by PCR in school leavers in 2018 and 2019
Measured: 2018 to 2019
Secondary outcomes (7)
Estimate the Difference in Carriage Prevalence of All N. Meningitidis Genogroups Between South Australian School Leavers in 2018 (Year 12 in 2017) and 2019 (Year 12 in 2018)
As measured by PCR in school leavers in 2018 and 2019
Measured: 2018 to 2019
Estimate the Difference in Carriage Prevalence of Each N. Meningitidis Genogroup (A, B, C, W, X, Y) Between South Australian School Leavers in 2018 (Year 12 in 2017) and 2019 (Year 12 in 2018)
As measured by PCR in school leavers in 2018 and 2019
Measured: 2018 to 2019
Across Years, Estimate the Difference in Carriage Prevalence of N. Meningitidis Genogroups Causing Disease (A, B, C, W, X, Y) Between South Australian School Leavers Who Received 4CMenB Vaccine and Unvaccinated Students
As measured by PCR in vaccinated and unvaccinated school leavers
Measured: 2018 to 2019
Across Years, Estimate the Difference in Carriage Prevalence of All N. Meningitidis Genogroups Between South Australian School Leavers Who Have Received 4CMenB and Unvaccinated Students.
As measured by PCR in vaccinated and unvaccinated school leavers in 2018 and 2019
Measured: 2018 to 2019
Across Years, Estimate the Difference in Each N. Meningitidis Genogroup (A, B, C, W, X, Y) Carriage Prevalence Between South Australian School Leavers Who Received 4CMenB Vaccine and Unvaccinated Students
As measured by PCR in vaccinated and unvaccinated school leavers
Measured: 2018 to 2019
Identify Characteristics Associated With Carriage Prevalence of All N. Meningitidis Genogroups in South Australian School Leavers in 2018/2019
As measured by PCR in school leavers
Measured: 2018 to 2019
Identify Characteristics Associated With Carriage Prevalence of N. Meningitidis Genogroups Causing Disease (A, B, C, W, X, Y) in South Australian School Leavers in 2018 /2019
As measured by PCR in school leavers
Measured: 2018 to 2019
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Feb 2018
- Study start1 Feb 2018
- Primary completion31 Dec 2020
- Study completion31 Dec 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Neisseria MeningitidisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 6,802 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Adelaide
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Helen Marshall, University of Adelaide
- Investigators
- Helen Marshall, Principal investigator, University of Adelaide
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03419533
- Sponsor's protocol ID
- HREC/16/WCHN/140_3
- Acronym
- B Part Of It
- Status last verified
- Oct 2021
- First submitted
- 17 Jan 2018
- Last updated
- 5 Nov 2021
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Marshall HS, McMillan M, Koehler A, Lawrence A, MacLennan J, Maiden M, Ramsay M, Ladhani SN, Trotter C, Borrow R, Finn A, Sullivan T, Richmond P, Kahler C, Whelan J, Vadivelu K. B Part of It School Leaver protocol: an observational repeat cross-sectional study to assess the impact of a meningococcal serogroup B (4CMenB) vaccine programme on carriage of Neisseria meningitidis. BMJ Open. 2019 May 6;9(5):e027233. doi: 10.1136/bmjopen-2018-027233.
PubMed 31064808McMillan M, Bednarz J, Leong LEX, Lawrence A, Marshall HS. Impact of COVID-19 Containment Strategies and Meningococcal Conjugate ACWY Vaccination on Meningococcal Carriage in Adolescents. Pediatr Infect Dis J. 2022 Nov 1;41(11):e468-e474. doi: 10.1097/INF.0000000000003660. Epub 2022 Jul 27.
PubMed 35895880McMillan M, Koehler AP, Lawrence A, Sullivan TR, Bednarz J, MacLennan JM, Maiden MCJ, Ladhani SN, Ramsay ME, Trotter C, Borrow R, Finn A, Kahler CM, Whelan J, Vadivelu K, Richmond PC, Marshall HS. B Part of It School Leaver Study: A Repeat Cross-Sectional Study to Assess the Impact of Increasing Coverage With Meningococcal B (4CMenB) Vaccine on Carriage of Neisseria meningitidis. J Infect Dis. 2022 Feb 15;225(4):637-649. doi: 10.1093/infdis/jiab444.
PubMed 34487174
Study at a glance
From the registry record, last updated by the sponsor on 5 Nov 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Observational Cross-sectional Study to Assess Oropharyngeal Carriage of N. Meningitidis in South Australian School Leavers
- ClinicalTrials.gov ID
- NCT03419533
- Acronym / sponsor ID
- B Part Of It / HREC/16/WCHN/140_3
- Conditions
- Neisseria Meningitidis
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 6,802 participants (actual)
- Lead sponsor
- University of AdelaideUniversity, hospital or other
- Study start
- 1 Feb 2018 (actual)
- Primary completion
- 31 Dec 2020 (actual)
- Study completion
- 31 Dec 2020 (actual)
- First posted
- 5 Feb 2018 (actual)
- Results
- Posted 5 Nov 2021
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is an observational cross sectional study to evaluate the impact of a 4CMenB vaccination program on oropharyngeal N. meningitidis carriage in vaccinated and unvaccinated school leavers.
Detailed description
This carriage study of a cohort of school leavers in South Australia (SA) will provide an opportunity to assess carriage rates in the young adult population (school leavers) following introduction of a 4CMenB vaccination program in senior school students from 2017-2018.This will allow a comparison of carriage prevalence in the two years (2018 and 2019) following implementation of the school program to assess impact on carriage at a population level and compare carriage prevalence in vaccinated versus non-vaccinated groups. Assessment of any association between risk factors and prevalence of nasopharyngeal carriage in school leavers will be made and compared between vaccinated and unvaccinated students.
School leavers are defined as students who were enrolled in year 12 at school in the preceding year of recruitment and have been chosen as they are likely to have the highest carriage rates. A high proportion (approximately two thirds) of students will be immunised by the time of throat swab collection in years 2018 and 2019. Assessing carriage in both vaccinated and unvaccinated cohorts will further inform the effect of 4CMenB vaccine on carriage at a population level. This will help determine any herd immunity impact of 4CMenB vaccine and persistence of any effect.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 2018 school leavers | – | –South Australian school leavers in 2018 (year 12 in 2017) |
| 2019 school leavers | – | –South Australian school leavers in 2019 (year 12 in 2018) |
Who may qualify
- Ages
- 17 to 25 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
- Study population
- School leavers recruited through tertiary education sites and mail out through schools.
Key inclusion criteria (1 listed)
- South Australian school leavers between 17 to 25 years of age (enrolled in year 12 in the previous year ie year 2018, students are eligible if they were enrolled in year 12 in 2017, year 2019, students are eligible if they were enrolled in year 12 in 2018).
Key exclusion criteria (1 listed)
- No exclusion criteria
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Estimate the Difference in Carriage Prevalence of Disease Associated Genogroups of N. Meningitidis (A, B, C, W, X, Y) Between School Leavers in 2018 (Year 12 in 2017) and 2019 (Year 12 in 2018), Following a 4CMenB School Immunisation Program
Time frame: 2018 to 2019
As measured by PCR in school leavers in 2018 and 2019
7 secondary outcomes
Estimate the Difference in Carriage Prevalence of All N. Meningitidis Genogroups Between South Australian School Leavers in 2018 (Year 12 in 2017) and 2019 (Year 12 in 2018)
Time frame: 2018 to 2019
Estimate the Difference in Carriage Prevalence of Each N. Meningitidis Genogroup (A, B, C, W, X, Y) Between South Australian School Leavers in 2018 (Year 12 in 2017) and 2019 (Year 12 in 2018)
Time frame: 2018 to 2019
Across Years, Estimate the Difference in Carriage Prevalence of N. Meningitidis Genogroups Causing Disease (A, B, C, W, X, Y) Between South Australian School Leavers Who Received 4CMenB Vaccine and Unvaccinated Students
Time frame: 2018 to 2019
Across Years, Estimate the Difference in Carriage Prevalence of All N. Meningitidis Genogroups Between South Australian School Leavers Who Have Received 4CMenB and Unvaccinated Students.
Time frame: 2018 to 2019
Across Years, Estimate the Difference in Each N. Meningitidis Genogroup (A, B, C, W, X, Y) Carriage Prevalence Between South Australian School Leavers Who Received 4CMenB Vaccine and Unvaccinated Students
Time frame: 2018 to 2019
Identify Characteristics Associated With Carriage Prevalence of All N. Meningitidis Genogroups in South Australian School Leavers in 2018/2019
Time frame: 2018 to 2019
Identify Characteristics Associated With Carriage Prevalence of N. Meningitidis Genogroups Causing Disease (A, B, C, W, X, Y) in South Australian School Leavers in 2018 /2019
Time frame: 2018 to 2019
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Nov 2021.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 31064808Marshall HS, McMillan M, Koehler A, Lawrence A, MacLennan J, Maiden M, Ramsay M, Ladhani SN, Trotter C, Borrow R, Finn A, Sullivan T, Richmond P, Kahler C, Whelan J, Vadivelu K. B Part of It School Leaver protocol: an observational repeat cross-sectional study to assess the impact of a meningococcal serogroup B (4CMenB) vaccine programme on carriage of Neisseria meningitidis. BMJ Open. 2019 May 6;9(5):e027233. doi: 10.1136/bmjopen-2018-027233.
- Derived from this study: PubMed 35895880McMillan M, Bednarz J, Leong LEX, Lawrence A, Marshall HS. Impact of COVID-19 Containment Strategies and Meningococcal Conjugate ACWY Vaccination on Meningococcal Carriage in Adolescents. Pediatr Infect Dis J. 2022 Nov 1;41(11):e468-e474. doi: 10.1097/INF.0000000000003660. Epub 2022 Jul 27.
- Derived from this study: PubMed 34487174McMillan M, Koehler AP, Lawrence A, Sullivan TR, Bednarz J, MacLennan JM, Maiden MCJ, Ladhani SN, Ramsay ME, Trotter C, Borrow R, Finn A, Kahler CM, Whelan J, Vadivelu K, Richmond PC, Marshall HS. B Part of It School Leaver Study: A Repeat Cross-Sectional Study to Assess the Impact of Increasing Coverage With Meningococcal B (4CMenB) Vaccine on Carriage of Neisseria meningitidis. J Infect Dis. 2022 Feb 15;225(4):637-649. doi: 10.1093/infdis/jiab444.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Helen Marshall principal investigator
University of Adelaide
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Neisseria Meningitidis, run by University of Adelaide at 1 site in Australia.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 5 Nov 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Australia. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 5 Nov 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Estimate the Difference in Carriage Prevalence of Disease Associated Genogroups of N. Meningitidis (A, B, C, W, X, Y) Between School Leavers in 2018 (Year 12 in 2017) and 2019 (Year 12 in 2018), Following a 4CMenB School Immunisation Program (time frame: 2018 to 2019). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03419533, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Nov 2021.