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Not yet recruitingNCT06257147Updated Mar 20, 2024

Antimicrobial Stewardship for Enterobacterales Bacteremia Management

An interventional study of multifaceted antibiotic stewardship intervention in Infections, sponsored by Chinese University of Hong Kong. Not yet recruiting at 1 site in Hong Kong. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-03-20.

Sponsored by Chinese University of Hong Kong · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
420
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

We hypothesize that a multifaceted antibiotic stewardship intervention incorporating physician education, prospective chart review with antibiotic recommendation, and provision of follow-up by a multidisciplinary antibiotic stewardship team, is more effective than physician education and reminders alone in improving physicians' prescription of short-course and oral-switch antibiotic therapy for patients with bloodstream infections due to Enterobacterales (BSI-E).

This study is to:

  1. determine the effectiveness of a multifaceted antibiotic stewardship intervention in improving physicians' prescription of short-course antibiotic therapy for BSI-E
  2. determine the effectiveness of a multifaceted antibiotic stewardship intervention in improving physicians' de-escalation to oral antibiotic therapy for BSI-E
Read the detailed description

Antimicrobial resistance is a major global threat, causing 5 million deaths globally in 2019. One of the crucial strategies to control the emergence and spread of multidrug-resistant organisms (MDRO) is to minimize unnecessary antibiotics exposure.

Shorter duration of antibiotic therapy and oral-switch therapy for bloodstream infection due to Enterobacterales (BSI-E) had demonstrated similar treatment success and clinical outcomes as compared with longer courses in randomized controlled trials. Despite the release of such data, clinicians may be reluctant to shortern duration of therapy for BSI-E and adopt oral-switch approach.

This study aims to determine the optimal approach to aid clinicians in adopting evidence-based practice in a clinical setting. This study is a pragmatic cluster-randomized controlled trial in the medical wards of an acute hospital. A cluster, as the unit of randomization, is a medical ward. Medical wards will be randomized to three groups: (1) physician education only; (2) physician education and paper reminder; (3) multifaceted antibiotic stewardship intervention. The prescription of antibiotic therapy by treating physicians and outcomes of patients with BSI-E will be studied.

Patients' antibiotics regimen and clinical outcomes in the three groups will be compared.

02

Conditions studied

  • Infections

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03

In context

Infections

6,687 studies on the registry are indexed under Infections; 807 are open to participants now.

This study's planned enrollment of 420 is above the median of 120 across 4,200 interventional studies indexed under Infections.

Browse Infections studies →

Lead sponsor

Chinese University of Hong Kong is the lead sponsor of 1,419 studies on the registry; 487 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • aged ≥18 years;
  • hospitalization in one of the medical wards of the hospital; and
  • isolation of Enterobacterales in at least one blood culture bottle, where Enterobacterales include Escherichia coli, Klebsiella, Proteus, Enterobacter, Serratia, Citrobacter, Providencia and Morganella species.

Exclusion criteria

Exclusion Criteria:

  • concomitant isolation of pathogens other than Enterobacterales in blood or other relevant clinical specimens;
  • infections requiring prolonged courses of antibiotics, such as intra-abdominal abscess, central nervous system infection, endocarditis, lung abscess or empyema, osteomyelitis, and prostatitis;
  • focus of infection not controlled;
  • nosocomial infection with onset within 7 days; or
  • Presence of neutropenia, allogenic stem cell transplant within one year, use of high-dose steroid (>40mg prednisolone or equivalent for > 2 weeks), or
  • died before day 7 will be excluded from the analysis, or
  • already on more than 7 days of antibiotics for BSI-E at the time of screening.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
420 participants (estimated)

Study arms

  • Placebo comparator
    Group 1 wards (physician education)

    For Group 1 wards, physician education will be provided. All physicians treating patients in general medical wards will undergo a training session at the start of the study. Education content includes latest evidence on short-course antibiotic therapy and criteria for de-escalation to oral antibiotics for BSI-E. The educational materials will be prepared by Infectious Diseases physicians, and will be presented during one of the monthly departmental meetings, which routinely involve physician education. Ample time will be provided for answering questions from physicians. During the study period, the same material will be presented to new medical staff joining the department. The educational materials will be sent to all physicians in the department regardless of their attendance of the meeting. Patients will receive standard of care.

    Behavioral: multifaceted antibiotic stewardship intervention

  • Active comparator
    Group 2 wards (physician education + paper reminder)

    For Group 2 wards, physician education will be provided as in Group 1. A paper reminder will be attached in the medical records of all consecutive patients on the first working day after Enterobacterale is isolated from blood culture. The reminder documents (1) the clinical and host criteria that should be considered for prescribing short-course antibiotic therapy, and (2) options of oral antibiotics to complete the treatment course. These recommendations are based on results of the trials demonstrating non-inferiority of short-course and oral-switch therapy for BSI-E.

    Behavioral: multifaceted antibiotic stewardship intervention

  • Active comparator
    Group 3 wards (multifaceted antibiotic stewardship intervention)

    Group 3 wards will receive a multifaceted antibiotic stewardship intervention. Physician education will be provided as in Group 1. All consecutive patients fulfilling inclusion and exclusion criteria for study eligibility will be assessed by an Antibiotic Stewardship team. A trained nurse will first assess the patients for clinical and host criteria to determine eligibility for short-course antibiotic therapy. The antibiotic susceptibility test results and the prescribed antibiotics treatment will be reviewed. An Infectious Diseases physician will subsequently make written recommendations for the duration and choice of antibiotic therapy, and provide an appointment within 2 weeks after hospital discharge to review patients' clinical condition when indicated.

    Behavioral: multifaceted antibiotic stewardship intervention

Interventions

  • Behavioralmultifaceted antibiotic stewardship intervention

    Group 3 wards will receive a multifaceted antibiotic stewardship intervention. Physician education will be provided as in Group 1. All consecutive patients fulfilling inclusion and exclusion criteria for study eligibility will be assessed by an Antibiotic Stewardship team. A trained nurse will first assess the patients for clinical and host criteria to determine eligibility for short-course antibiotic therapy. The antibiotic susceptibility test results and the prescribed antibiotics treatment will be reviewed. An Infectious Diseases physician will subsequently make written recommendations for the duration and choice of antibiotic therapy, and provide an appointment within 2 weeks after hospital discharge to review patients' clinical condition when indicated.

06

What researchers measure

Primary outcomes

  1. Percentage of patients receiving 7 days effective antibiotic therapy for the treatment of BSI-E

    proportion of patients receiving 7 days of effective antibiotic therapy for the treatment of BSI-E

    Time frame: 7 days

Secondary outcomes

  1. proportion of patients with susceptible oral antibiotics completed the course with an oral antibiotic

    proportion of patients with susceptible oral antibiotics completed the course with an oral antibiotic

    Time frame: during hopsitalization

  2. 30-day all-cause mortality

    30-day all-cause mortality

    Time frame: 30 day since hospital admission

  3. clinical failure

    clinical failure , defined as relapse of BSI-E due to the same Enterobacterales, local suppurative complications or distant complications due to the same pathogen within 90 days

    Time frame: within 90 days since hopsitalization

  4. length of stay in hospital

    length of stay in hospital

    Time frame: from the admission up to the discharge

  5. re-admission to hospital within 90 days

    re-admission to hospital within 90 days

    Time frame: within 90 days since discharge

07

Study locations

1 site
  • Prince of Wales Hospital
    Sha Tin, Hong Kong
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 20, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06257147
Lead sponsor
Chinese University of Hong Kong
Responsible party
Grace Lui (Division Head of Infectious Diseases, Department of Medicine & Therapeutics, Chinese University of Hong Kong) — Principal investigator
First posted
Feb 13, 2024
Start date
May 1, 2024 (estimated)
Primary completion
Nov 30, 2026 (estimated)
Completion
Nov 30, 2026 (estimated)
Last update
Mar 20, 2024

Study contacts

Catherine Cheung
Contact
catherinecheung@cuhk.edu.hk
35053376

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.

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