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Pragmatic Adaptive Trial for Respiratory Infections in Children (PATRIC) : Amoxicillin Duration

Pragmatic Adaptive Trial for Respiratory Infections in Children Platform: Amoxicillin Duration

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12621000967886
Acronym
PATRIC: Amoxicillin Duration
Enrollment
50
Registered
2021-07-23
Start date
2022-02-26
Completion date
2025-03-05
Last updated
2025-11-24

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

Conditions

None listed

Brief summary

Acute respiratory infection (ARI) is a common cause of childhood morbidity and the most common reason for paediatric emergency department presentation and hospitalisation. Despite numerous professional bodies describing the limited trial data available to inform management guidelines, there has been little progress towards evidence-based ARI care in developed nations in the past decade. Antimicrobial use (or misuse) is a major driver for antimicrobial resistance (AMR) and identified by the WHO as an urgent threat to the prevention and treatment of an ever-increasing range of infections. AMR is a serious threat to global public health, requiring urgent action across all government sectors and society. Most antibiotics in children are prescribed for common paediatric conditions, particularly ARI. Our group has demonstrated that >50% of ARI-episodes are confirmed to be secondary to viral infections, yet >50% of children with fever and cough are prescribed antibiotics. Therefore, most antibiotics prescribed to children with ARI are likely to be unhelpful and given the impact on AMR, potentially harmful. The primary objective of this trial is to generate the evidence for optimal duration of antibiotic treatment for pneumonia and ARIs in children. This trial will compare different treatment arms of amoxicillin for 2, 3, 4 or 5 days for physician-diagnosed pneumonia in children aged greater than or equal to 6 months to 15 years.

Interventions

Name: Amoxicillin (250mg/5mL) Dose: 25mg/kg per dose, 3 times per day for participants up to 40kg Duration: 2-5 days of therapy (Arms 1-4) Arm 1 - 2 days of therapy Arm 2 - 3 days of therapy Arm 3 - 4 days of therapy Arm 4 - 5 days of therapy (standard of care) Mode: Oral syrup Name: Amoxicillin 500mg capsule Dose: 25mg/kg per dose, 3 times per day for participants over 40kg Duration: 2-5 days of therapy (Arms 1-4) Arm 1 - 2 days of therapy Arm 2 - 3 days of therapy Arm 3 - 4 days of therapy

Name: Amoxicillin (250mg/5mL) Dose: 25mg/kg per dose, 3 times per day for participants up to 40kg Duration: 2-5 days of therapy (Arms 1-4) Arm 1 - 2 days of therapy Arm 2 - 3 days of therapy Arm 3 - 4 days of therapy Arm 4 - 5 days of therapy (standard of care) Mode: Oral syrup Name: Amoxicillin 500mg capsule Dose: 25mg/kg per dose, 3 times per day for participants over 40kg Duration: 2-5 days of therapy (Arms 1-4) Arm 1 - 2 days of therapy Arm 2 - 3 days of therapy Arm 3 - 4 days of therapy Arm 4 - 5 days of therapy (standard of care) Mode: Oral capsules Intervention adherence to the randomised dose will be self-reported in follow-up electronic surveys.

Sponsors

Telethon Kids Institute
Lead SponsorOther

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
6 Months to 15 Years
Healthy volunteers
No

Inclusion criteria

1) Participants must be aged between greater than or equal to 6 months and 15 years. 2) Presence of fever and cough in the past 96 hours. 3) Total duration of symptoms <21 days at the time of enrolment. 4) Physician-diagnosed pneumonia; OR acute lower respiratory infection where antibiotics would be considered

Exclusion criteria

1) Previous participation in PATRIC Clinical Registry or PATRIC Platform Trial within the last 3 months. 2) Parent/guardian has insufficient English proficiency to understand the study materials. 3) Parent/guardian is unwilling to provide consent. 4) Severe lower respiratory tract infection, identified by: a.) the presence of hypoxia in room air (<90%) b.) the presence of WHO-defined danger signs (see definitions) c.) if sepsis is suspected OR d.) requiring ICU admission 5) Complicated LRTI, defined by either confirmation or clinical suspicion of: a.) empyema b.) infected para-pneumonic effusion OR c.) lung abscess. 6) Patient displays severe respiratory distress (i.e. observations meet the Severe – Score 3 definitions; see PARROT chart). 7) Patient has bilateral auscultatory findings with a likely diagnosis of uncomplicated viral induced wheeze, bronchiolitis or asthma. 8) Patient is Intolerant to oral medications (refusal or vomiting). 9) Patient is currently receiving antibiotic therapy or taken antibiotics within the last 7 days. 10) Patient has known intolerance or allergy to amoxicillin or penicillin. 11) Parent and/or carer unable to return for medical review in the setting of clinical deterioration or lives outside the Perth metropolitan area. 12) Any concern that in the opinion of the responsible physician or investigator makes the potential participant unsuitable for the study.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 9, 2026