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LegionellosisNCT00452153

Evaluation of Legionella PCR Techniques for the Routine Diagnosis of Legionellosis

A study testing Characterization Legionnella in people with Legionellosis, run by Centre Hospitalier Universitaire de Saint Etienne at 6 sites in France.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The validity of molecular techniques for the diagnosis of legionellosis is not known. Although PCR can detect Legionella pneumophila (responsible for 80% of legionellosis) and other Legionella species, this test is not recommended in standard guidelines to assess this diagnostic, by contrast to culture of sputum… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Legionellosis
What is being tested?
Characterization Legionnella
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
6 sitesFrance
Study dates
Mar 2007to Jul 2010
Phase
Interventional
Are there results?
None posted in the registry

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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Written informed consent
  • Patient affiliated to social insurance
  • Community acquired or nosocomial pneumonia

Who cannot join

  • No sputum aspirate

Trial locations and contacts

6 sites in 1 country.

6 sites in 1 country

France6 sites

  • HMU CHU Saint-Etienne

    Saint-Etienne, 42055

  • Infectious Disease unit CHU de Saint-Etienne

    Saint-Etienne, 42055

  • Pneumology unit CHU de Saint-Etienne

    Saint-Etienne, 42055

  • Reanimation unit - Hopital Bellevue - CHU de Saint-Etienne

    Saint-Etienne, 42055

  • Reanimation unit - Hôpital NORD - CHU de Saint-Etienne

    Saint-Etienne, 42055

  • Urgency unit CHU Saint-Etienne

    Saint-Etienne, 42055

Other trials in France

About this study

The validity of molecular techniques for the diagnosis of legionellosis is not known. Although PCR can detect Legionella pneumophila (responsible for 80% of legionellosis) and other Legionella species, this test is not recommended in standard guidelines to assess this diagnostic, by contrast to culture of sputum, serology and urine antigen. The aim of this study is to evaluate Legionella PCR techniques, performed directly onto the sputum aspirates, for the routine diagnosis of pneumonia in adults' patients admitted to hospital. This study implicates 3 University hospitals (Lyon, Grenoble and Saint-Etienne) in collaboration with the French reference center of legionellosis for a previous duration of one year. In addition to the usual diagnostic tests that are performed when pneumonia is suspected, real-time PCR will be added for the detection and differentiation of Legionella. Hypothesizing the inclusion of 1000 pneumonia in this study, the predictable number of newly-detected legionellosis will be approximately 60 to 70 cases. According to a predefined algorithm, cases of legionellosis will be classified as definite or probable. Sensitivity and specificity of the real-time PCR will be calculated according to this classification. This study is intended to validate real-time PCR as a tool for the rapid diagnosis of legionellosis, allowing to optimize the antibiotic treatment of pneumonia. PCR techniques can also contribute to the better detection and differentiation of Legionella sp infections that are not documented accurately by routine microbiologic tests.

Conditions
Legionellosis
Being tested
Characterization Legionnella
Keywords
legionellosis, diagnosis of legionellosis, PCR
Medical subject headings
Legionellosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Characterization LegionnellaProcedure or surgery

    • Characterisation Legionnella by polymerase chain reaction (PCR)
    • Characterization strain of Legionnella by sequencing the 23S-5S ribosomal intergenic spacer region
Study groups in NCT00452153
Study groupRoleWhat they receive
Characterization LegionnellaExperimentalCharacterization Legionnella by polymerase chain reaction (PCR)
Receives: Procedure: Characterization Legionnella

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Definite or probable legionellosis

    Measured: Inclusion and J30

Secondary outcomes (3)

  1. Definite legionellosis

    Measured: Inclusion and J30

  2. Probable legionellosis

    Measured: Inclusion and J30

  3. Possible legionellosis

    Measured: Inclusion and J30

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Mar 2007 (estimated)
  2. Study startMar 2007
  3. Primary completionJul 2010
  4. Study completionJul 2010

Why it stopped: Too much difficulties to includ patient

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
200 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00452153
Sponsor's protocol ID
0601072
Status last verified
Jul 2015
First submitted
26 Mar 2007
Last updated
29 Jul 2015
Results posted
No
Data monitoring committee
No

Publications

  • Squier CL, Stout JE, Krsytofiak S, McMahon J, Wagener MM, Dixon B, Yu VL. A proactive approach to prevention of health care-acquired Legionnaires' disease: the Allegheny County (Pittsburgh) experience. Am J Infect Control. 2005 Aug;33(6):360-7. doi: 10.1016/j.ajic.2005.01.012.

    PubMed 16061143

  • Decludt B, Campese C, Lacoste M, Che D, Jarraud S, Etienne J. Clusters of travel associated legionnaires' disease in France, September 2001- August 2003. Euro Surveill. 2004 Feb;9(2):12-3. doi: 10.2807/esm.09.02.00446-en.

    PubMed 15010573

  • Grattard F, Berthelot P, Reyrolle M, Ros A, Etienne J, Pozzetto B. Molecular typing of nosocomial strains of Legionella pneumophila by arbitrarily primed PCR. J Clin Microbiol. 1996 Jun;34(6):1595-8. doi: 10.1128/jcm.34.6.1595-1598.1996.

    PubMed 8735131

  • Aurell H, Etienne J, Forey F, Reyrolle M, Girardo P, Farge P, Decludt B, Campese C, Vandenesch F, Jarraud S. Legionella pneumophila serogroup 1 strain Paris: endemic distribution throughout France. J Clin Microbiol. 2003 Jul;41(7):3320-2. doi: 10.1128/JCM.41.7.3320-3322.2003.

    PubMed 12843082

  • Gaia V, Fry NK, Afshar B, Luck PC, Meugnier H, Etienne J, Peduzzi R, Harrison TG. Consensus sequence-based scheme for epidemiological typing of clinical and environmental isolates of Legionella pneumophila. J Clin Microbiol. 2005 May;43(5):2047-52. doi: 10.1128/JCM.43.5.2047-2052.2005.

    PubMed 15872220

  • Wang EE, Manson B, Corey M, Bernard K, Prober CG. False positivity of Legionella serology in patients with cystic fibrosis. Pediatr Infect Dis J. 1987 Mar;6(3):256-9. doi: 10.1097/00006454-198703000-00009.

    PubMed 3106925

  • Plouffe JF, File TM Jr, Breiman RF, Hackman BA, Salstrom SJ, Marston BJ, Fields BS. Reevaluation of the definition of Legionnaires' disease: use of the urinary antigen assay. Community Based Pneumonia Incidence Study Group. Clin Infect Dis. 1995 May;20(5):1286-91. doi: 10.1093/clinids/20.5.1286.

    PubMed 7620012

  • Helbig JH, Uldum SA, Bernander S, Luck PC, Wewalka G, Abraham B, Gaia V, Harrison TG. Clinical utility of urinary antigen detection for diagnosis of community-acquired, travel-associated, and nosocomial legionnaires' disease. J Clin Microbiol. 2003 Feb;41(2):838-40. doi: 10.1128/JCM.41.2.838-840.2003.

    PubMed 12574296

  • Grattard F, Ginevra C, Riffard S, Ros A, Jarraud S, Etienne J, Pozzetto B. Analysis of the genetic diversity of Legionella by sequencing the 23S-5S ribosomal intergenic spacer region: from phylogeny to direct identification of isolates at the species level from clinical specimens. Microbes Infect. 2006 Jan;8(1):73-83. doi: 10.1016/j.micinf.2005.05.022. Epub 2005 Aug 8.

    PubMed 16198139

  • Hayden RT, Uhl JR, Qian X, Hopkins MK, Aubry MC, Limper AH, Lloyd RV, Cockerill FR. 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. J Clin Microbiol. 2001 Jul;39(7):2618-26. doi: 10.1128/JCM.39.7.2618-2626.2001.

    PubMed 11427579

  • Templeton KE, Scheltinga SA, Sillekens P, Crielaard JW, van Dam AP, Goossens H, Claas EC. Development and clinical evaluation of an internally controlled, single-tube multiplex real-time PCR assay for detection of Legionella pneumophila and other Legionella species. J Clin Microbiol. 2003 Sep;41(9):4016-21. doi: 10.1128/JCM.41.9.4016-4021.2003.

    PubMed 12958219

  • Welti M, Jaton K, Altwegg M, Sahli R, Wenger A, Bille J. Development of a multiplex real-time quantitative PCR assay to detect Chlamydia pneumoniae, Legionella pneumophila and Mycoplasma pneumoniae in respiratory tract secretions. Diagn Microbiol Infect Dis. 2003 Feb;45(2):85-95. doi: 10.1016/s0732-8893(02)00484-4.

    PubMed 12614979

  • Reischl U, Linde HJ, Lehn N, Landt O, Barratt K, Wellinghausen N. Direct detection and differentiation of Legionella spp. and Legionella pneumophila in clinical specimens by dual-color real-time PCR and melting curve analysis. J Clin Microbiol. 2002 Oct;40(10):3814-7. doi: 10.1128/JCM.40.10.3814-3817.2002.

    PubMed 12354888

  • Ginevra C, Barranger C, Ros A, Mory O, Stephan JL, Freymuth F, Joannes M, Pozzetto B, Grattard F. Development and evaluation of Chlamylege, a new commercial test allowing simultaneous detection and identification of Legionella, Chlamydophila pneumoniae, and Mycoplasma pneumoniae in clinical respiratory specimens by multiplex PCR. J Clin Microbiol. 2005 Jul;43(7):3247-54. doi: 10.1128/JCM.43.7.3247-3254.2005.

    PubMed 16000443

  • Helbig JH, Bernander S, Castellani Pastoris M, Etienne J, Gaia V, Lauwers S, Lindsay D, Luck PC, Marques T, Mentula S, Peeters MF, Pelaz C, Struelens M, Uldum SA, Wewalka G, Harrison TG. Pan-European study on culture-proven Legionnaires' disease: distribution of Legionella pneumophila serogroups and monoclonal subgroups. Eur J Clin Microbiol Infect Dis. 2002 Oct;21(10):710-6. doi: 10.1007/s10096-002-0820-3. Epub 2002 Oct 18.

    PubMed 12415469

Questions about this trial

What is this clinical trial studying?

A study testing Characterization Legionnella in people with Legionellosis, run by Centre Hospitalier Universitaire de Saint Etienne at 6 sites in France.

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 3 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: stopped early, as of the sponsor's last update on 29 Jul 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in France. 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?

The study was stopped early (reason given: Too much difficulties to includ patient). Results are not available in the source record.

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?

Definite or probable legionellosis (time frame: Inclusion and J30). 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 NCT00452153, which also lists 17 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 29 Jul 2015.

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