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The Canadian antibiotic prescribing feedback initiation: building a national framework to combat AntiMicrobial Resistance in primary care

The Canadian ANtibiotic prescribing feedback initiation: Building a national framework to combat AntiMicrobial Resistance in primary care: study protocol for a comparative effectiveness randomized controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN90477957
Enrollment
8000
Registered
2025-11-04
Start date
2025-11-30
Completion date
Unknown
Last updated
2026-03-30

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

Conditions

Antimicrobial stewardship in primary care through the prevention of unnecessary antibiotic prescribing for viral respiratory infections among older adult patients (aged =65 years) in Ontario, Canada Infections and Infestations

Interventions

This study will be conducted as a two-arm, parallel-group randomized controlled trial among actively practicing primary care physicians in Ontario, Canada. Eligible physicians will be randomized 1:1 t

Sponsors

Public Health Ontario
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Primary care physician (family medicine or general practitioner) in Ontario, Canada

Exclusion criteria

Exclusion criteria: 1. Inactive physician, defined as working less than 44 days per year 2. Prescribed fewer than 10 antibiotic prescriptions to patients aged 65 years and older in the most recent year or 2 out of the last 3 years 3. Fewer than 100 outpatient visits with patients aged 65 years or older in the most recent year or 2 out of the last 3 years 4. Fewer than 6 outpatient visits for a viral respiratory infection with patients aged 65 years or older in the most recent year or 2 out of the last 3 years 5. Physicians who previously opted out after receiving antibiotic prescribing feedback letters

Design outcomes

Primary

MeasureTime frame
Antibiotic prescribing rate (APR) measured using routinely collected administrative health data from ICES at 6 months post-intervention

Secondary

MeasureTime frame
1. Proportion of unnecessary antibiotic prescriptions (UAP) measured using ICES administrative health data at 6 months post-intervention, percentage of antibiotics prescribed for viral respiratory infections without bacterial codes in patients aged 65 years and older 2. Diagnostic code switching measured using ICES administrative health data at 6 months post-intervention, proportion of respiratory infection codes where antibiotics are not indicated relative to all respiratory infection codes 3. Stratified analyses measured using ICES administrative health data at 6 months post-intervention and stratified by physician gender, career stage, patient volume (Q1- Q4), baseline overall prescribing (Q1-Q4), baseline unnecessary prescribing (Q1-Q4), virtual care (Q1-Q4), primary practice setting (emergency room, primary care), rural location, MyPractice report enrollment, and neighborhood income quintile (Q1-Q5)

Countries

Canada

Contacts

Public ContactKalisha Ramlackhan
kalisha.ramlackhan@oahpp.ca+1 647-792-3605

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Apr 4, 2026