Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Ontario Healthcare Implementation Laboratory: A Learning Health System Approach That Leverages Data to Improve Quality in Primary Care: Stage 1
Brief Summary: Antibiotic overuse occurs in multiple jurisdictions and is associated with rising rates of antimicrobial resistance. Mailing letters to the highest antibiotic prescribing physicians is a potentially effective method to optimize antibiotic use. The objectives of this study are to improve enrollment to Health Quality Ontario's Primary Care Practice report and reduce unnecessary antibiotic use. The investigators are conducting a randomized controlled trial recruiting the 3500 highest antibiotic prescribing primary care physicians in Ontario. The investigators have incorporated behavioural science theory into designing letters to modify prescribing behaviour. Letter 1 is testing change ideas related to antibiotic initiation and letter 2 is testing change ideas related to antibiotic duration. There will be 1500 physicians receiving letter 1, 1500 receiving letter 2, and 500 will serve as controls. Twelve months later all 3500 physicians will receive a letter.


Options:
A: Arm Label: CRP intervention; Type: EXPERIMENTAL; Interventions: Procedure: Patients will be tested by rapid POC CRP test | Arm Label: Control; Type: NO_INTERVENTION; Interventions: N/A | Intervention Type: PROCEDURE; Name: Patients will be tested by rapid POC CRP test; Assigned to Arm(s): CRP intervention
B: Arm Label: Procalcitonin (PCT) group; Type: EXPERIMENTAL; Interventions: Other: Procalcitonin level, Other: Results of procalcitonin (PCT) level to treating clinician, Other: Provide procalcitonin guideline to treating clinician, Other: Telephone Visit | Arm Label: Usual Care group; Type: ACTIVE_COMPARATOR; Interventions: Other: Telephone Visit | Intervention Type: OTHER; Name: Procalcitonin level; Assigned to Arm(s): Procalcitonin (PCT) group | Intervention Type: OTHER; Name: Results of procalcitonin (PCT) level to treating clinician; Assigned to Arm(s): Procalcitonin (PCT) group | Intervention Type: OTHER; Name: Provide procalcitonin guideline to treating clinician; Assigned to Arm(s): Procalcitonin (PCT) group | Intervention Type: OTHER; Name: Telephone Visit; Assigned to Arm(s): Procalcitonin (PCT) group, Usual Care group
C: Arm Label: CRP-Control; Type: OTHER; Interventions: Other: No CRP will be measured onsite | Arm Label: CRP-A; Type: OTHER; Interventions: Other: CRP cut-off of 20mg/L. | Arm Label: CRP-B; Type: OTHER; Interventions: Other: CRP cut-off of 40mg/L. | Intervention Type: OTHER; Name: No CRP will be measured onsite; Assigned to Arm(s): CRP-Control | Intervention Type: OTHER; Name: CRP cut-off of 20mg/L.; Assigned to Arm(s): CRP-A | Intervention Type: OTHER; Name: CRP cut-off of 40mg/L.; Assigned to Arm(s): CRP-B
D: Arm Label: Antibiotic use feedback letter 1; Type: ACTIVE_COMPARATOR; Interventions: Other: Antibiotic use feedback letter | Arm Label: Antibiotic use feedback letter 2; Type: ACTIVE_COMPARATOR; Interventions: Other: Antibiotic use feedback letter | Arm Label: Control; Type: NO_INTERVENTION; Interventions: N/A | Intervention Type: OTHER; Name: Antibiotic use feedback letter; Assigned to Arm(s): Antibiotic use feedback letter 1, Antibiotic use feedback letter 2

Answer: D