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Published on: February 24, 2026
Combination aerosol therapy to treat Burkholderia cepacia complex
P G Middleton1, T J Kidd, B Williams
1University of Sydney, CF Unit, Ludwig Engel Centre for Respiratory Research, Dept of Respiratory Medicine, Westmead Hospital, Westmead, 2145, NSW, Australia. peterm@westgate.wh.usyd.edu.au
Abstract:
Burkholderia cepacia infection in cystic fibrosis (CF) patients is associated with significant morbidity and mortality, yet no definitive treatment is currently available. This report describes a new approach to treat B. cepacia infection in CF patients, using a combination of amiloride and tobramycin aerosols. Four adults with the typical clinical syndrome of CF were recruited after repeated positive sputum cultures for B. cepacia. Aerosols of amiloride and tobramycin were given three times daily for 1-6 months, and repeated sputum cultures were collected to assess efficacy. Three of the four patients treated with the combined therapy eradicated B. cepacia from their sputum cultures for at least 2 yrs, and there were no adverse events. This novel combination may provide a new therapeutic option for Burkholderia cepacia infections. Furthermore, the strategy of combining antibiotics with ion transport agents may have ramifications for the treatment of other multi-resistant organisms.
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