Community-acquired Pneumonia Due to Chlamydia Pneumoniae

Condition(s) studied

Study summary

This international retrospective Franco-Swiss study focuses on community-acquired pneumonia (CAP) caused by Chlamydia pneumoniae.

The working hypothesis is that the prevalence of C. pneumoniae pneumonia is overestimated by the medical community.

The primary objective is to determine the true prevalence of C. pneumoniae infections among patients with pneumonia who underwent simplex or multiplex PCR testing.

Secondary objectives include;

1. Outpatient management
2. Hospitalization in a medical ward
3. Admission to the intensive care unit
4. In-hospital mortality
5. Radiological presentation of patients with community-acquired pneumonia (CAP) caused by Chlamydia pneumoniae
6. Prevalence of viral or bacterial co-infections associated with C. pneumoniae CAP

Eligibility

Primary outcome measure(s)

• Prevalence of Chlamydia pneumoniae Among Pneumonia Cases Tested by PCR — January 2015 to December 2025
  Proportion of pneumonia cases with a positive simplex or multiplex PCR for Chlamydia pneumoniae among all patients who underwent respiratory PCR testing during the study period.

Trial sites (1)

More Centre Hospitalier de Saint-Denis trials in France

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