Antibiotics for COPD exacerbations: does drug or duration matter? A primary care database analysis

Area of Science:

• Pulmonary Medicine
• Infectious Diseases
• Pharmacology

Background:

• Antibiotic use for lower respiratory tract infections (LRTI) in chronic obstructive pulmonary disease (COPD) is standard in primary care.
• Population prescribing habits and their clinical impact remain underexplored.

Purpose of the Study:

• To analyze antibiotic prescribing patterns for COPD exacerbations in UK primary care.
• To identify factors associated with repeat antibiotic prescriptions within 14 days.

Main Methods:

• Retrospective analysis of UK primary care data (2010-2015).
• Examined antibiotic prescriptions for non-pneumonic COPD exacerbations.
• Used logistic regression to model factors influencing second antibiotic prescriptions.

Main Results:

• 8.4% of COPD LRTI events received a second antibiotic prescription for LRTI within 14 days.
• Amoxicillin was the most frequent index antibiotic (58.7%); doxycycline was common for repeat prescriptions (28.7%).
• Factors associated with repeat LRTI antibiotics included non-amoxicillin index drugs, cardiovascular disease, and increased primary care consultations.

Conclusions:

• Multiple antibiotic courses for COPD exacerbations are frequent, with one in twelve patients receiving a second course for LRTI within two weeks.
• Findings support amoxicillin as a preferred initial antibiotic, but further trials are needed to establish optimal practices.