Non-Cystic Fibrosis Bronchiectasis

Zambon is committed to developing novel treatments for severe respiratory diseases such as NCFB



Non-cystic Fibrosis Bronchiectasis (NCFB) is a serious respiratory disease characterized by chronic inflammation, wall thickening and dilatation of the airways, with an estimated 50%-80% of cases having no clear cause.1 Patients suffer from chronic cough, increased sputum production, breathlessness and fatigue. Those with this disease are much more susceptible to frequent lung infections. NCFB is often related to pre-existing chronic obstructive pulmonary disease (COPD), asthma and primary ciliary dyskinesia disease.  

Understanding NCFB

NCFB is often related to pre-existing chronic obstructive pulmonary disease (COPD), asthma and primary ciliary dyskinesia disease.

In addition to adversely affecting the quality of life of patients, NCFB also imposes a significant economic burden to patients and the healthcare system.

  • Real world data has shown that in addition to clear impacts to quality of life, patients with NCFB have higher mortality rates with respect to the rest of the population.2
  • Traditional clinical studies evaluating long-term inhaled antibiotics have been very challenging and none have resulted in approved treatments.3

NCFB patients may develop Pseudomonas aeruginosa lung infection during their disease. P. aeruginosa bacteria in NCFB patients is associated with accelerated decline of lung function and increased risk of death, hospital admission and exacerbation.4 NCFB patients with chronic P. aeruginosa infections, represents a large unmet need in the area of chronic respiratory diseases.4

1. O`Donnell AE, Bronchiectasis, Chest, 2008;134: 815-823.
2. Quint, JK, et al. Eur Respir J. Jan 2016; 47(1): 186-193. doi: 10.1183/13993003.01033-2015.
3. Maselli DJ, et al. Int J Mol Sci. 2017;18(5):1062. doi:10.3390/ijms18051062.
4. Finch S, et al. Ann Am Thorac Soc. 2015; 12(11): 1602-11


of patients with bronchiectasis have a chronic infection

Michal Shteinberg, Patrick A. Flume, JamesD. Chalmers. Is bronchiectasis really a disease? Eur Respir Rev 2020; 29: 190051

patients involved in Promis 1 and Promis 2 clinical trials

PROMIS Program

The PROMIS Phase 3 program is evaluating inhaled colistimethate sodium administered via the I-neb® Adaptive Aerosol Delivery system in patients with NCFB chronically colonized with P. aeruginosa to reduce the frequency of pulmonary exacerbations. The rationale of inhaled therapy is to deliver sufficient concentrations of drug directly to the site of disease while minimizing systemic exposure.

The PROMIS program consists of two Phase 3 clinical studies, PROMIS I and PROMIS II. The studies are expected to enroll about 800 patients in 17 countries, including 30 US clinical sites. 

Colistimethate sodium has received a qualified infectious disease product (QIDP) and Fast Track designations from the US food and Drug Administration for the treatment of NCFB, reinforcing Zambon’s commitment to developing a treatment for patients and physicians for this debilitating disease. If approved, colistimethate sodium would be the first FDA approved treatment indicated for patients with NCFB chronically colonized with P. aeruginosa. Upon receiving necessary regulatory approvals, we are preparing market access and product launch plans in the U.S., EU and other global markets.