Skip to content

How to Reduce Unnecessary Blood Cultures: Construction and Validation of a Predictive Score for Blood Culture Positivity in Intensive Care

Comment Diminuer Les hémocultures Inutiles : Construction et Validation d'un Score prédictif de positivité Des hémocultures en réanimation.

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05686577
Acronym
PROBIty
Enrollment
2411
Registered
2023-01-17
Start date
2022-11-22
Completion date
2023-10-25
Last updated
2024-03-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bacteremia, Infection, Bacterial, Infection, Fungal

Keywords

intensive care unit, blood culture, prediction, score

Brief summary

Prospective observational cohort consisting of all adult patients admitted to participating critical care units (ICU and CCU) during the study period, with blood cultures collected as part of their care, and who did not express any objection to participating. For each patient, data will be collected prospectively for each blood culture set collected.

Interventions

OTHERno intervention

no intervention

Sponsors

University Hospital, Tours
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female, age 18 years or older * Patient admitted to an ICU or ICU * patient with a blood culture sample as part of care

Exclusion criteria

* Patient already included in this study during a previous hospitalisation * Opposition expressed for participation in the study

Design outcomes

Primary

MeasureTime frame
Area under the ROC curve of the predictive performance of the score for predicting bacteremia or fungemia.day 1- day 28

Secondary

MeasureTime frameDescription
Area under the ROC curve of the diagnostic performance of the Shapiro score for predicting bacteremia or fungemia;day 1- day 28
Proportion of bacteremia or fungemia identified by blood cultures in patients on antibiotic therapy and broad-spectrum antibiotic therapy, and factors associated with these bacteremias or fungemias;day 1- day 28
Area under the ROC curve of the diagnostic performance of body temperature to predict bacteremia or fungemia;day 1- day 28
Descriptive study of the contribution of blood cultures, whatever their results, to the prescription of anti-infectives.day 1- day 28
Efficiency of the new predictive score for blood culture positivity in Intensive Care, as compared with body temperature and Shapiro score, measured by two Incremental Cost-Effectiveness Ratios (ICER): ICER (incremental cost per additional well-detecteless than 1 monthA tree decision model will compare three strategies for predicting positive blood cultures: the new predictive score, body temperature and Shapiro score. Within-trial data will be used to define the model parameters. The model will consider the costs related to the implementation of the strategies, blood cultures, and potential delays in patient management. This will result in the estimation of the two ICERs.
Comparison of the diagnostic performance of the score in predicting bacteremia or fungemia observed during the first 48 hours of hospitalization to later bacteremias;48 hours

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026