Condition (MeSH)
Legionellosis
ClinicalTrials.gov lists 7 trials for Legionellosis or a narrower condition beneath it.
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Trials per phase
1 of the 7 trials are tagged with Legionellosis itself; the rest are tagged with a narrower condition beneath it.
When did Legionellosis trials start? (6)
Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year.
Trials over time, by phase
- Not applicable
- Observational
Top of scale: 2
Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.
| Year | Trials started |
|---|---|
| 2026 (partial year) | 1 |
| 2019 | 1 |
| 2017 | 1 |
| 2013 | 1 |
| 2009 | 1 |
| 2007 | 2 |
No forecast is made for this condition: it averages 0.2 trial starts a year over the five years to September, under the 5 a year the method needs.
Recruitment duration, a model prediction: none of the 7 trials evaluated at the 2026-10-09 snapshot is predicted and still running. Source: ClinicalTrials.gov / AACT (CTTI), public domain.
What phase are Legionellosis trials in? (2)
Shown in this order: phase order.
Show the trials by phase as a table
| Phase | Trials |
|---|---|
| Not applicable | 2 |
| Observational | 5 |
How many Legionellosis trials are recruiting? (3)
Shown in this order: the order a trial moves through, from not yet recruiting to unknown.
| Status | Trials |
|---|---|
| Not yet recruiting | 1 |
| Completed | 5 |
| Terminated | 1 |
Status as registered on ClinicalTrials.gov. Each trial is counted once.
Which lead sponsors run the most Legionellosis trials? (2)
Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.
| Sponsor | Trials |
|---|---|
| Pfizer | 1 |
| Sykehuset Telemark | 1 |
Which serious adverse events do Legionellosis trials report? (1)
Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.
| Adverse event | Subjects affected | Trials |
|---|---|---|
| Gastrointestinal haemorrhage | 1 | 1 |
Which publications cover Legionellosis? (6)
Shown in this order: major-topic papers first, then newest, then most linked to trials.
| Publication | Journal | Year | Major topic |
|---|---|---|---|
| Emerging respiratory infections: The infectious disease pathology of SARS, MERS, pandemic influenza, and Legionella. | Seminars in diagnostic pathology | 2019 | Yes |
| Atypical pneumonia. | Current opinion in pulmonary medicine | 2014 | Yes |
| How often is a work-up for Legionella pursued in patients with pneumonia? a retrospective study. | BMC infectious diseases | 2011 | Yes |
| Direct detection of Legionella species from bronchoalveolar lavage and open lung biopsy specimens: comparison of LightCycler PCR, in situ hybridization, direct fluorescence antigen detection, and culture. | Journal of clinical microbiology | 2001 | Yes |
| Diagnosis and Treatment of Adults with Community-acquired Pneumonia. An Official Clinical Practice Guideline of the American Thoracic Society and Infectious Diseases Society of America. | American journal of respiratory and critical care medicine | 2019 | No |
Showing 5 of 6 publications.
Rare-disease identity (2)
Shown in this order: exact, broader, narrower, other.
| Orphanet disease | ORPHA code | Relation | Source |
|---|---|---|---|
| Legionella infection | 600832 | Exact | Orphanet Rare Disease Ontology (ORDO) |
| Legionella infection | 600832 | Exact | Orphadata Science knowledge files, Product 1 |
Sub-conditions in MeSH (1)
MeSH descendants one level down with at least one trial, most trials first.
Not on this page
Not measured: delivery record.
Checked, with nothing recorded for this condition: prevalence.
Not computed for conditions with fewer than 10 trials: drugs tested.