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Early detection of bacteria in bloodstream infections: implications for patient care.


- candidate number6555
- NTR NumberNTR2043
- ISRCTNISRCTN wordt niet meer aangevraagd.
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR6-okt-2009
- Secondary IDsMEC 08-2-071 MEC azM/UM
- Public TitleEarly detection of bacteria in bloodstream infections: implications for patient care.
- Scientific TitleEarly detection of bacteria in bloodstream infections using molecular diagnostics: implications for patient care.
- ACRONYMDOBBI (Diagnosis Of Bacterial Bloodstream Infections)
- hypothesisWe hypothesize that earlier diagnosis in bloodstream infections results in earlier initiation or adaptation of the empirically started broad-spectrum antibiotics and may lead to an improved patient outcome, decrease in costs and reduction of selection of antibiotic-resistant bacteria.
- Healt Condition(s) or Problem(s) studiedSepsis, Bacteremia, Susceptibility testing, Rapid Antibiotics
- Inclusion criteriaAll patients in the Maastricht University Medical Center with a positive blood culture are eligible for inclusion.
- Exclusion criteria1. Age under 18;
2. A blood culture containing streptococci, coagulase-negative staphylococci, anaerobes or multiple species;
3. A positive blood culture in the previous 3 days.
- mec approval receivedyes
- multicenter trialno
- randomisedyes
- masking/blindingSingle
- controlActive
- groupParallel
- Type2 or more arms, randomized
- Studytypeintervention
- planned startdate 12-okt-2009
- planned closingdate31-mrt-2011
- Target number of participants340
- InterventionsIn patients randomised for the intervention group, a new, rapid method for antibiotic susceptibility testing directly on positive blood cultures will be used. This method combines culture and PCR. The PCR is used to assess growth of bacteria in medium in the presence of an antibiotic. In this group, the results of this rapid method will be reported to the attending physician. In the control group, results of conventional methods (i.e. BD Phoenix (automated antibiotic susceptibility testing), E-test and disk diffusion) will be reported.
- Primary outcomePrimary endpoint is reduction in time that a broad-spectrum or inappropriate antibiotic therapy is used.
- Secondary outcomeSecondary outcomes:
1. Length of hospital stay;
2. Implementation of the advise of the medical microbiologist regarding antibiotic therapy by the patientsí physician;
3. Adverse effects of antibiotic use;
4. Mortality;
5. Economic evaluation.
- Timepoints1. At inclusion, baseline characteristics, signs of infection (lab results, X-rays, previous cultures), reason for taking a blood culture, previous infections and previous use of antibiotics will be recorded;
2. 9 hours after inclusion: reporting of results of the new methods;
3. 24 hours after inclusion: registration of signs of infection and reporting of the results of the conventional method;
4. At discharge or death of the patient: registration of antibiotics used during hospital stay, side-effects of antibiotics, infections during hospital stay and length of stay or cause of death.
- Trial web siteN/A
- statusplanned
- CONTACT FOR PUBLIC QUERIESMSc, PhD P.F.G. Wolffs
- CONTACT for SCIENTIFIC QUERIESDr. A. Verbon
- Sponsor/Initiator University Hospital Maastricht (AZM)
- Funding
(Source(s) of Monetary or Material Support)
Profileringsfonds, azM
- PublicationsN/A
- Brief summaryBlood stream infections have a high mortality, up to 25%. Since quick adequate therapy reduces mortality, broad spectrum antibiotics are used as empirical therapy. However, this strategy may lead to problems such as selection of antibiotic resistant bacteria, higher risk of drug toxicity and the risk of not covering the causative micro-organism. Early identification of the causative micro-organism and rapid determination of the antibiotic susceptibility pattern will narrow down the antibiotic therapy and reduce the time that broad antibiotic therapy is given.
The objective of this randomised, blinded clinical trial is to evaluate the influence of a PCR-based diagnostic test for antibiotic susceptibility in bacteraemia patients.
All patients 18 years and older admitted to the Maastricht University Medical Center with grown blood cultures are eligible for inclusion. Exclusion criteria are: a blood culture containing streptococci, coagulase-negative staphylococci, anaerobes or multiple species or a positive blood culture in the previous 3 days. Patients are randomised for antibiotic therapy according to either the rapid PCR-based method or the conventional method (conventional culture techniques).
Primary endpoint is reduction in time that a broad-spectrum or inappropriate antibiotic is used. Secondary outcomes are implementation of the antibiotic advice, length of hospital stay, adverse effects of antibiotic use, mortality and economic evaluation.
- Main changes (audit trail)
- RECORD6-okt-2009 - 29-okt-2009


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