NCT04447521

Brief Summary

The investigators will conduct a prospective observational study of non-invasive S. pneumoniae infections in Belgium and characterize serotype distributions to evaluate national vaccination programs.

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
3,600

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Sep 2020

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

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 22, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 25, 2020

Completed
2 months until next milestone

Study Start

First participant enrolled

September 1, 2020

Completed
4.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2025

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

October 27, 2022

Status Verified

October 1, 2022

Enrollment Period

4.7 years

First QC Date

June 22, 2020

Last Update Submit

October 25, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Establish insight in serotype dynamics for non-invasive pneumococcal diseases in Belgium prospectively, in association with changing vaccination programs (campaigns).

    There is a wealth of information available on the serotype distribution of S. pneumoniae causing inavsive pneumococcal disease (IPD). However, much less is known about the serotype distribution of S. pneumoniae causing non-invasive pneumococcal disease (NIPD). The goal of this study is to characterize the serotype distribution of of S. pneumoniae causing NIPD in Belgium, compare is with IPD data and link it with the changing national vaccinations programs.

    September 2020-May 2025

Secondary Outcomes (1)

  • Surveillance of emerging serotypes, clones and drug resistances. Study of the genetic divergences between invasive and non-invasive pneumococcal diseases isolates.

    September 2020-May 2025

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients suffering from non-invasive pneumococcal disease (diagnosed as CAP, sinusitis and otitits media) and living in Belgium at the time of the study.

You may qualify if:

  • Patients living in Belgium at the time of the study,
  • from whom unduplicated S. pneumoniae isolates were collected in routine practices,
  • from non-invasive upper (e.g.: pus/fluid from nasal sinus or from otitis media fluid) or lower respiratory tract (e.g. sputum bronchial or endotracheal aspirate, bronchoalveolar fluid (BAL),…) clinical samples,
  • from patients diagnosed with pneumonia, sinusitis and otitis.

You may not qualify if:

  • Patients for whom S. pneumoniae was simultaneously isolated from blood or another usually sterile specimen

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sciensano

Brussels, 1180, Belgium

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

Streptococcus pneumoniae samples will be collected and stored during the time frame of this study. DNA extraction and whole-genome sequencing will be performed for a subset of these strains.

MeSH Terms

Conditions

PneumoniaOtitis Media

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsLung DiseasesRespiratory Tract DiseasesOtitisEar DiseasesOtorhinolaryngologic Diseases

Study Officials

  • Pieter-Jan Ceyssens, PhD

    Sciensano

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Pieter-Jan Ceyssens, PhD

CONTACT

Ioannis Passaris, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 22, 2020

First Posted

June 25, 2020

Study Start

September 1, 2020

Primary Completion

May 1, 2025

Study Completion

December 31, 2025

Last Updated

October 27, 2022

Record last verified: 2022-10

Locations