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  • Colistimethate sodium...

Colistimethate sodium effective against bronchiectasis and P. aeruginosa infection: Study

Written By : Jacinthlyn Sylvia |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2025-03-11T20:15:00+05:30  |  Updated On 12 March 2025 2:16 PM IST
Colistimethate sodium effective against bronchiectasis and P. aeruginosa infection: Study
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According to PROMIS-I data published in the journal of The Lancet Respiratory Medicine showed that individuals with bronchiectasis and Pseudomonas aeruginosa infections may benefit clinically from colistimethate sodium administered via the I-neb adaptive aerosol delivery system. As a result of compromised mucociliary clearance and compromised host immunity, patients with bronchiectasis experience a persistent infection of the airways. An elevated risk of exacerbation and higher airway inflammation are linked to an increased bacterial load in the airway. One of the top priorities in treating people with bronchiectasis is preventing exacerbations.

The most frequent infection found in the airways of bronchiectasis patients is P. aeruginosa. More airway inflammation, more severe symptoms and lung function, an accelerated decline in lung function, more bronchiectasis exacerbations, a higher risk of hospitalization, and a higher mortality rate are all linked to the presence of P. aeruginosa in sputum. Thus, this study examined the safety and effectiveness of inhaling colistimethate sodium for 12 months using the I-neb.

The study involved the trials of twice-daily colistimethate sodium against placebo in hospitals in Argentina, Belgium, Australia, Canada, Germany, France, Greece, Italy, Israel, Netherlands, Poland, New Zealand, Portugal, Switzerland, Spain, the UK and the USA. Individuals with bronchiectasis with P. aeruginosa and a record of at least two exacerbations that require oral antibiotics or one requiring IV antibiotics in the past year were enrolled. Using an interactive online response system, the randomization was carried out and stratified by place and duration of macrolide consumption.

In the PROMIS-I study, a total of 377 patients were randomized at random between June 6, 2017 and April 8, 2020. The colistimethate sodium group experienced a yearly exacerbation rate of 0·58, whereas the placebo group experienced an exacerbation rate of 0·95. In PROMIS-II, 287 patients were randomized at random between February 12, 2018 and October 22, 2021. The effects of COVID-19 pandemic led to the early termination of PROMIS-II. The yearly exacerbation rate did not differ significantly between the colistimethate sodium and placebo groups. Overall, 142 patients experienced adverse events in the colistimethate sodium group when compared to 159 in the placebo group in PROMIS-I, and 123 patients experienced adverse events when compared to 104 in PROMIS-II.

Source:

Haworth, C. S., Shteinberg, M., Winthrop, K., Barker, A., Blasi, F., Dimakou, K., Morgan, L. C., O’Donnell, A. E., Ringshausen, F. C., Sibila, O., Thomson, R. M., Carroll, K. J., Pontenani, F., Castellani, P., & Chalmers, J. D. (2024). Inhaled colistimethate sodium in patients with bronchiectasis and Pseudomonas aeruginosa infection: results of PROMIS-I and PROMIS-II, two randomised, double-blind, placebo-controlled phase 3 trials assessing safety and efficacy over 12 months. In The Lancet Respiratory Medicine (Vol. 12, Issue 10, pp. 787–798). Elsevier BV. https://doi.org/10.1016/s2213-2600(24)00225-x

The Lancet Respiratory Medicinecolistimethate sodiumbronchiectasisPseudomonas aeruginosa
Source : The Lancet Respiratory Medicine
Jacinthlyn Sylvia
Jacinthlyn Sylvia

    Neuroscience Masters graduate

    Jacinthlyn Sylvia, a Neuroscience Master's graduate from Chennai has worked extensively in deciphering the neurobiology of cognition and motor control in aging. She also has spread-out exposure to Neurosurgery from her Bachelor’s. She is currently involved in active Neuro-Oncology research. She is an upcoming neuroscientist with a fiery passion for writing. Her news cover at Medical Dialogues feature recent discoveries and updates from the healthcare and biomedical research fields. She can be reached at editorial@medicaldialogues.in

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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